intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

94 files changed, 22595 insertions, 0 deletions

diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonSerializableWebServiceRequest.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonSerializableWebServiceRequest.cpp
new file mode 100644
index 0000000000..0c401b01b2
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonSerializableWebServiceRequest.cpp
@@ -0,0 +1,24 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/AmazonSerializableWebServiceRequest.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+
+using namespace Aws;
+
+std::shared_ptr<Aws::IOStream> AmazonSerializableWebServiceRequest::GetBody() const
+{
+    Aws::String&& payload = SerializePayload();
+    std::shared_ptr<Aws::IOStream> payloadBody;
+
+    if (!payload.empty())
+    {
+      payloadBody = Aws::MakeShared<Aws::StringStream>("AmazonSerializableWebServiceRequest");
+      *payloadBody << payload;
+    }
+
+    return payloadBody;
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonStreamingWebServiceRequest.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonStreamingWebServiceRequest.cpp
new file mode 100644
index 0000000000..92e61c7ad4
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonStreamingWebServiceRequest.cpp
@@ -0,0 +1,12 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/AmazonStreamingWebServiceRequest.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+
+using namespace Aws;
+
+AmazonStreamingWebServiceRequest::~AmazonStreamingWebServiceRequest() {}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonWebServiceRequest.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonWebServiceRequest.cpp
new file mode 100644
index 0000000000..a6b0406683
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/AmazonWebServiceRequest.cpp
@@ -0,0 +1,20 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/AmazonWebServiceRequest.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+
+using namespace Aws;
+
+AmazonWebServiceRequest::AmazonWebServiceRequest() :
+    m_responseStreamFactory(Aws::Utils::Stream::DefaultResponseStreamFactoryMethod),
+    m_onDataReceived(nullptr),
+    m_onDataSent(nullptr),
+    m_continueRequest(nullptr),
+    m_onRequestSigned(nullptr),
+    m_requestRetryHandler(nullptr)
+{
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Aws.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Aws.cpp
new file mode 100644
index 0000000000..1eaa477fca
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Aws.cpp
@@ -0,0 +1,134 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/Version.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/Aws.h>
+#include <aws/core/client/CoreErrors.h>
+#include <aws/core/utils/logging/AWSLogging.h>
+#include <aws/core/utils/logging/DefaultLogSystem.h>
+#include <aws/core/Globals.h>
+#include <aws/core/external/cjson/cJSON.h>
+#include <aws/core/monitoring/MonitoringManager.h>
+#include <aws/core/net/Net.h>
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/internal/AWSHttpResourceClient.h>
+
+namespace Aws
+{
+    static const char* ALLOCATION_TAG = "Aws_Init_Cleanup";
+
+    void InitAPI(const SDKOptions &options)
+    {
+#ifdef USE_AWS_MEMORY_MANAGEMENT
+        if(options.memoryManagementOptions.memoryManager)
+        {
+            Aws::Utils::Memory::InitializeAWSMemorySystem(*options.memoryManagementOptions.memoryManager);
+        }
+#endif // USE_AWS_MEMORY_MANAGEMENT
+        Aws::Client::CoreErrorsMapper::InitCoreErrorsMapper();
+        if(options.loggingOptions.logLevel != Aws::Utils::Logging::LogLevel::Off)
+        {
+            if(options.loggingOptions.logger_create_fn)
+            {
+                Aws::Utils::Logging::InitializeAWSLogging(options.loggingOptions.logger_create_fn());
+            }
+            else
+            {
+                Aws::Utils::Logging::InitializeAWSLogging(
+                        Aws::MakeShared<Aws::Utils::Logging::DefaultLogSystem>(ALLOCATION_TAG, options.loggingOptions.logLevel, options.loggingOptions.defaultLogPrefix));
+            }
+            // For users to better debugging in case multiple versions of SDK installed
+            AWS_LOGSTREAM_INFO(ALLOCATION_TAG, "Initiate AWS SDK for C++ with Version:" << Aws::String(Aws::Version::GetVersionString()));
+        }
+
+        Aws::Config::InitConfigAndCredentialsCacheManager();
+
+        if (options.cryptoOptions.aes_CBCFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetAES_CBCFactory(options.cryptoOptions.aes_CBCFactory_create_fn());
+        }
+
+        if(options.cryptoOptions.aes_CTRFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetAES_CTRFactory(options.cryptoOptions.aes_CTRFactory_create_fn());
+        }
+
+        if(options.cryptoOptions.aes_GCMFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetAES_GCMFactory(options.cryptoOptions.aes_GCMFactory_create_fn());
+        }
+
+        if(options.cryptoOptions.md5Factory_create_fn)
+        {
+            Aws::Utils::Crypto::SetMD5Factory(options.cryptoOptions.md5Factory_create_fn());
+        }
+
+        if(options.cryptoOptions.sha256Factory_create_fn)
+        {
+            Aws::Utils::Crypto::SetSha256Factory(options.cryptoOptions.sha256Factory_create_fn());
+        }
+
+        if(options.cryptoOptions.sha256HMACFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetSha256HMACFactory(options.cryptoOptions.sha256HMACFactory_create_fn());
+        }
+
+        if (options.cryptoOptions.aes_KeyWrapFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetAES_KeyWrapFactory(options.cryptoOptions.aes_KeyWrapFactory_create_fn());
+        }
+
+        if(options.cryptoOptions.secureRandomFactory_create_fn)
+        {
+            Aws::Utils::Crypto::SetSecureRandomFactory(options.cryptoOptions.secureRandomFactory_create_fn());
+        }
+
+        Aws::Utils::Crypto::SetInitCleanupOpenSSLFlag(options.cryptoOptions.initAndCleanupOpenSSL);
+        Aws::Utils::Crypto::InitCrypto();
+
+        if(options.httpOptions.httpClientFactory_create_fn)
+        {
+            Aws::Http::SetHttpClientFactory(options.httpOptions.httpClientFactory_create_fn());
+        }
+
+        Aws::Http::SetInitCleanupCurlFlag(options.httpOptions.initAndCleanupCurl);
+        Aws::Http::SetInstallSigPipeHandlerFlag(options.httpOptions.installSigPipeHandler);
+        Aws::Http::InitHttp();
+        Aws::InitializeEnumOverflowContainer();
+        cJSON_Hooks hooks;
+        hooks.malloc_fn = [](size_t sz) { return Aws::Malloc("cJSON_Tag", sz); };
+        hooks.free_fn = Aws::Free;
+        cJSON_InitHooks(&hooks);
+        Aws::Net::InitNetwork();
+        Aws::Internal::InitEC2MetadataClient();
+        Aws::Monitoring::InitMonitoring(options.monitoringOptions.customizedMonitoringFactory_create_fn);
+    }
+
+    void ShutdownAPI(const SDKOptions& options)
+    {
+        Aws::Monitoring::CleanupMonitoring();
+        Aws::Internal::CleanupEC2MetadataClient();
+        Aws::Net::CleanupNetwork();
+        Aws::CleanupEnumOverflowContainer();
+        Aws::Http::CleanupHttp();
+        Aws::Utils::Crypto::CleanupCrypto();
+
+        Aws::Config::CleanupConfigAndCredentialsCacheManager();
+
+        if(options.loggingOptions.logLevel != Aws::Utils::Logging::LogLevel::Off)
+        {
+            Aws::Utils::Logging::ShutdownAWSLogging();
+        }
+
+        Aws::Client::CoreErrorsMapper::CleanupCoreErrorsMapper();
+
+#ifdef USE_AWS_MEMORY_MANAGEMENT
+        if(options.memoryManagementOptions.memoryManager)
+        {
+            Aws::Utils::Memory::ShutdownAWSMemorySystem();
+        }
+#endif // USE_AWS_MEMORY_MANAGEMENT
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Globals.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Globals.cpp
new file mode 100644
index 0000000000..55f2ee9220
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Globals.cpp
@@ -0,0 +1,28 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/Globals.h>
+#include <aws/core/utils/EnumParseOverflowContainer.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+
+namespace Aws
+{
+    static const char TAG[] = "GlobalEnumOverflowContainer";
+    static Utils::EnumParseOverflowContainer* g_enumOverflow;
+
+    Utils::EnumParseOverflowContainer* GetEnumOverflowContainer()
+    {
+        return g_enumOverflow;
+    }
+
+    void InitializeEnumOverflowContainer()
+    {
+        g_enumOverflow = Aws::New<Aws::Utils::EnumParseOverflowContainer>(TAG);
+    }
+
+    void CleanupEnumOverflowContainer()
+    {
+        Aws::Delete(g_enumOverflow);
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Region.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Region.cpp
new file mode 100644
index 0000000000..4b18bf2a2a
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Region.cpp
@@ -0,0 +1,36 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/memory/stl/AWSString.h>
+#include <aws/core/Region.h>
+namespace Aws
+{
+    namespace Region
+    {
+        Aws::String ComputeSignerRegion(const Aws::String& region)
+        {
+            if (region == Aws::Region::AWS_GLOBAL)
+            {
+                return Aws::Region::US_EAST_1;
+            }
+            else if (region == "s3-external-1")
+            {
+                return Aws::Region::US_EAST_1;
+            }
+            else if (region.size() >= 5 && region.compare(0, 5, "fips-") == 0)
+            {
+                return region.substr(5);
+            }
+            else if (region.size() >= 5 && region.compare(region.size() - 5, 5, "-fips") == 0)
+            {
+                return region.substr(0, region.size() - 5);
+            }
+            else
+            {
+                return region;
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Version.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Version.cpp
new file mode 100644
index 0000000000..35291906b7
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/Version.cpp
@@ -0,0 +1,53 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/Version.h>
+#include <aws/core/VersionConfig.h>
+
+namespace Aws
+{
+namespace Version
+{
+  const char* GetVersionString()
+  {
+    return AWS_SDK_VERSION_STRING;
+  }
+
+  unsigned GetVersionMajor()
+  {
+    return AWS_SDK_VERSION_MAJOR;
+  }
+
+  unsigned GetVersionMinor()
+  {
+    return AWS_SDK_VERSION_MINOR;
+  }
+
+  unsigned GetVersionPatch()
+  {
+    return AWS_SDK_VERSION_PATCH;
+  }
+
+
+  const char* GetCompilerVersionString()
+  {
+#define xstr(s) str(s)
+#define str(s) #s
+#if defined(_MSC_VER)
+      return "MSVC/" xstr(_MSC_VER);
+#elif defined(__clang__)
+      return "Clang/" xstr(__clang_major__) "."  xstr(__clang_minor__) "." xstr(__clang_patchlevel__);
+#elif defined(__GNUC__)
+      return "GCC/" xstr(__GNUC__) "."  xstr(__GNUC_MINOR__) "." xstr(__GNUC_PATCHLEVEL__);
+#else
+      return "UnknownCompiler";
+#endif
+#undef str
+#undef xstr
+  }
+} //namespace Version
+} //namespace Aws
+
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSigner.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSigner.cpp
new file mode 100644
index 0000000000..de4826fa5b
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSigner.cpp
@@ -0,0 +1,806 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/auth/AWSAuthSigner.h>
+
+#include <aws/core/auth/AWSCredentialsProvider.h>
+#include <aws/core/client/ClientConfiguration.h>
+#include <aws/core/http/HttpRequest.h>
+#include <aws/core/http/HttpResponse.h>
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/utils/crypto/Sha256.h>
+#include <aws/core/utils/crypto/Sha256HMAC.h>
+#include <aws/core/utils/stream/PreallocatedStreamBuf.h>
+#include <aws/core/utils/event/EventMessage.h>
+#include <aws/core/utils/event/EventHeader.h>
+
+#include <cstdio>
+#include <iomanip>
+#include <math.h>
+#include <cstring>
+
+using namespace Aws;
+using namespace Aws::Client;
+using namespace Aws::Auth;
+using namespace Aws::Http;
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+
+static const char* EQ = "=";
+static const char* AWS_HMAC_SHA256 = "AWS4-HMAC-SHA256";
+static const char* EVENT_STREAM_CONTENT_SHA256 = "STREAMING-AWS4-HMAC-SHA256-EVENTS";
+static const char* EVENT_STREAM_PAYLOAD = "AWS4-HMAC-SHA256-PAYLOAD";
+static const char* AWS4_REQUEST = "aws4_request";
+static const char* SIGNED_HEADERS = "SignedHeaders";
+static const char* CREDENTIAL = "Credential";
+static const char* NEWLINE = "\n";
+static const char* X_AMZ_SIGNED_HEADERS = "X-Amz-SignedHeaders";
+static const char* X_AMZ_ALGORITHM = "X-Amz-Algorithm";
+static const char* X_AMZ_CREDENTIAL = "X-Amz-Credential";
+static const char* UNSIGNED_PAYLOAD = "UNSIGNED-PAYLOAD";
+static const char* X_AMZ_SIGNATURE = "X-Amz-Signature";
+static const char* X_AMZN_TRACE_ID = "x-amzn-trace-id";
+static const char* X_AMZ_CONTENT_SHA256 = "x-amz-content-sha256";
+static const char* USER_AGENT = "user-agent";
+static const char* SIGNING_KEY = "AWS4";
+static const char* SIMPLE_DATE_FORMAT_STR = "%Y%m%d";
+static const char* EMPTY_STRING_SHA256 = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";
+
+static const char v4LogTag[] = "AWSAuthV4Signer";
+static const char v4StreamingLogTag[] = "AWSAuthEventStreamV4Signer";
+
+namespace Aws
+{
+    namespace Auth
+    {
+        const char SIGNATURE[] = "Signature";
+        const char SIGV4_SIGNER[] = "SignatureV4";
+        const char EVENTSTREAM_SIGV4_SIGNER[] = "EventStreamSignatureV4";
+        const char EVENTSTREAM_SIGNATURE_HEADER[] = ":chunk-signature";
+        const char EVENTSTREAM_DATE_HEADER[] = ":date";
+        const char NULL_SIGNER[] = "NullSigner";
+    }
+}
+
+static Aws::String CanonicalizeRequestSigningString(HttpRequest& request, bool urlEscapePath)
+{
+    request.CanonicalizeRequest();
+    Aws::StringStream signingStringStream;
+    signingStringStream << HttpMethodMapper::GetNameForHttpMethod(request.GetMethod());
+
+    URI uriCpy = request.GetUri();
+    // Many AWS services do not decode the URL before calculating SignatureV4 on their end.
+    // This results in the signature getting calculated with a double encoded URL.
+    // That means we have to double encode it here for the signature to match on the service side.
+    if(urlEscapePath)
+    {
+        // RFC3986 is how we encode the URL before sending it on the wire.
+        auto rfc3986EncodedPath = URI::URLEncodePathRFC3986(uriCpy.GetPath());
+        uriCpy.SetPath(rfc3986EncodedPath);
+        // However, SignatureV4 uses this URL encoding scheme
+        signingStringStream << NEWLINE << uriCpy.GetURLEncodedPath() << NEWLINE;
+    }
+    else
+    {
+        // For the services that DO decode the URL first; we don't need to double encode it.
+        uriCpy.SetPath(uriCpy.GetURLEncodedPath());
+        signingStringStream << NEWLINE << uriCpy.GetPath() << NEWLINE;
+    }
+
+    if (request.GetQueryString().find('=') != std::string::npos)
+    {
+        signingStringStream << request.GetQueryString().substr(1) << NEWLINE;
+    }
+    else if (request.GetQueryString().size() > 1)
+    {
+        signingStringStream << request.GetQueryString().substr(1) << "=" << NEWLINE;
+    }
+    else
+    {
+        signingStringStream << NEWLINE;
+    }
+
+    return signingStringStream.str();
+}
+
+static Http::HeaderValueCollection CanonicalizeHeaders(Http::HeaderValueCollection&& headers)
+{
+    Http::HeaderValueCollection canonicalHeaders;
+    for (const auto& header : headers)
+    {
+        auto trimmedHeaderName = StringUtils::Trim(header.first.c_str());
+        auto trimmedHeaderValue = StringUtils::Trim(header.second.c_str());
+
+        //multiline gets converted to line1,line2,etc...
+        auto headerMultiLine = StringUtils::SplitOnLine(trimmedHeaderValue);
+        Aws::String headerValue = headerMultiLine.size() == 0 ? "" : headerMultiLine[0];
+
+        if (headerMultiLine.size() > 1)
+        {
+            for(size_t i = 1; i < headerMultiLine.size(); ++i)
+            {
+                headerValue += ",";
+                headerValue += StringUtils::Trim(headerMultiLine[i].c_str());
+            }
+        }
+
+        //duplicate spaces need to be converted to one.
+        Aws::String::iterator new_end =
+            std::unique(headerValue.begin(), headerValue.end(),
+                [=](char lhs, char rhs) { return (lhs == rhs) && (lhs == ' '); }
+        );
+        headerValue.erase(new_end, headerValue.end());
+
+        canonicalHeaders[trimmedHeaderName] = headerValue;
+    }
+
+    return canonicalHeaders;
+}
+
+AWSAuthV4Signer::AWSAuthV4Signer(const std::shared_ptr<Auth::AWSCredentialsProvider>& credentialsProvider,
+    const char* serviceName, const Aws::String& region, PayloadSigningPolicy signingPolicy, bool urlEscapePath) :
+    m_includeSha256HashHeader(true),
+    m_credentialsProvider(credentialsProvider),
+    m_serviceName(serviceName),
+    m_region(region),
+    m_hash(Aws::MakeUnique<Aws::Utils::Crypto::Sha256>(v4LogTag)),
+    m_HMAC(Aws::MakeUnique<Aws::Utils::Crypto::Sha256HMAC>(v4LogTag)),
+    m_unsignedHeaders({USER_AGENT, X_AMZN_TRACE_ID}),
+    m_payloadSigningPolicy(signingPolicy),
+    m_urlEscapePath(urlEscapePath)
+{
+    //go ahead and warm up the signing cache.
+    ComputeHash(credentialsProvider->GetAWSCredentials().GetAWSSecretKey(), DateTime::CalculateGmtTimestampAsString(SIMPLE_DATE_FORMAT_STR), region, m_serviceName);
+}
+
+AWSAuthV4Signer::~AWSAuthV4Signer()
+{
+    // empty destructor in .cpp file to keep from needing the implementation of (AWSCredentialsProvider, Sha256, Sha256HMAC) in the header file
+}
+
+
+bool AWSAuthV4Signer::ShouldSignHeader(const Aws::String& header) const
+{
+    return m_unsignedHeaders.find(Aws::Utils::StringUtils::ToLower(header.c_str())) == m_unsignedHeaders.cend();
+}
+
+bool AWSAuthV4Signer::SignRequest(Aws::Http::HttpRequest& request, const char* region, const char* serviceName, bool signBody) const
+{
+    AWSCredentials credentials = m_credentialsProvider->GetAWSCredentials();
+
+    //don't sign anonymous requests
+    if (credentials.GetAWSAccessKeyId().empty() || credentials.GetAWSSecretKey().empty())
+    {
+        return true;
+    }
+
+    if (!credentials.GetSessionToken().empty())
+    {
+        request.SetAwsSessionToken(credentials.GetSessionToken());
+    }
+
+    Aws::String payloadHash(UNSIGNED_PAYLOAD);
+    switch(m_payloadSigningPolicy)
+    {
+        case PayloadSigningPolicy::Always:
+            signBody = true;
+            break;
+        case PayloadSigningPolicy::Never:
+            signBody = false;
+            break;
+        case PayloadSigningPolicy::RequestDependent:
+            // respect the request setting
+        default:
+            break;
+    }
+
+    if(signBody || request.GetUri().GetScheme() != Http::Scheme::HTTPS)
+    {
+        payloadHash = ComputePayloadHash(request);
+        if (payloadHash.empty())
+        {
+            return false;
+        }
+    }
+    else
+    {
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "Note: Http payloads are not being signed. signPayloads=" << signBody
+                << " http scheme=" << Http::SchemeMapper::ToString(request.GetUri().GetScheme()));
+    }
+
+    if(m_includeSha256HashHeader)
+    {
+        request.SetHeaderValue(X_AMZ_CONTENT_SHA256, payloadHash);
+    }
+
+    //calculate date header to use in internal signature (this also goes into date header).
+    DateTime now = GetSigningTimestamp();
+    Aws::String dateHeaderValue = now.ToGmtString(DateFormat::ISO_8601_BASIC);
+    request.SetHeaderValue(AWS_DATE_HEADER, dateHeaderValue);
+
+    Aws::StringStream headersStream;
+    Aws::StringStream signedHeadersStream;
+
+    for (const auto& header : CanonicalizeHeaders(request.GetHeaders()))
+    {
+        if(ShouldSignHeader(header.first))
+        {
+            headersStream << header.first.c_str() << ":" << header.second.c_str() << NEWLINE;
+            signedHeadersStream << header.first.c_str() << ";";
+        }
+    }
+
+    Aws::String canonicalHeadersString = headersStream.str();
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Header String: " << canonicalHeadersString);
+
+    //calculate signed headers parameter
+    Aws::String signedHeadersValue = signedHeadersStream.str();
+    //remove that last semi-colon
+    if (!signedHeadersValue.empty())
+    {
+        signedHeadersValue.pop_back();
+    }
+
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Signed Headers value:" << signedHeadersValue);
+
+    //generate generalized canonicalized request string.
+    Aws::String canonicalRequestString = CanonicalizeRequestSigningString(request, m_urlEscapePath);
+
+    //append v4 stuff to the canonical request string.
+    canonicalRequestString.append(canonicalHeadersString);
+    canonicalRequestString.append(NEWLINE);
+    canonicalRequestString.append(signedHeadersValue);
+    canonicalRequestString.append(NEWLINE);
+    canonicalRequestString.append(payloadHash);
+
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Request String: " << canonicalRequestString);
+
+    //now compute sha256 on that request string
+    auto hashResult = m_hash->Calculate(canonicalRequestString);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to hash (sha256) request string");
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "The request string is: \"" << canonicalRequestString << "\"");
+        return false;
+    }
+
+    auto sha256Digest = hashResult.GetResult();
+    Aws::String canonicalRequestHash = HashingUtils::HexEncode(sha256Digest);
+    Aws::String simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR);
+
+    Aws::String signingRegion = region ? region : m_region;
+    Aws::String signingServiceName = serviceName ? serviceName : m_serviceName;
+    Aws::String stringToSign = GenerateStringToSign(dateHeaderValue, simpleDate, canonicalRequestHash, signingRegion, signingServiceName);
+    auto finalSignature = GenerateSignature(credentials, stringToSign, simpleDate, signingRegion, signingServiceName);
+
+    Aws::StringStream ss;
+    ss << AWS_HMAC_SHA256 << " " << CREDENTIAL << EQ << credentials.GetAWSAccessKeyId() << "/" << simpleDate
+        << "/" << signingRegion << "/" << signingServiceName << "/" << AWS4_REQUEST << ", " << SIGNED_HEADERS << EQ
+        << signedHeadersValue << ", " << SIGNATURE << EQ << finalSignature;
+
+    auto awsAuthString = ss.str();
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Signing request with: " << awsAuthString);
+    request.SetAwsAuthorization(awsAuthString);
+    request.SetSigningAccessKey(credentials.GetAWSAccessKeyId());
+    request.SetSigningRegion(signingRegion);
+    return true;
+}
+
+bool AWSAuthV4Signer::PresignRequest(Aws::Http::HttpRequest& request, long long expirationTimeInSeconds) const
+{
+    return PresignRequest(request, m_region.c_str(), expirationTimeInSeconds);
+}
+
+bool AWSAuthV4Signer::PresignRequest(Aws::Http::HttpRequest& request, const char* region, long long expirationInSeconds) const
+{
+    return PresignRequest(request, region, m_serviceName.c_str(), expirationInSeconds);
+}
+
+bool AWSAuthV4Signer::PresignRequest(Aws::Http::HttpRequest& request, const char* region, const char* serviceName, long long expirationTimeInSeconds) const
+{
+    AWSCredentials credentials = m_credentialsProvider->GetAWSCredentials();
+
+    //don't sign anonymous requests
+    if (credentials.GetAWSAccessKeyId().empty() || credentials.GetAWSSecretKey().empty())
+    {
+        return true;
+    }
+
+    Aws::StringStream intConversionStream;
+    intConversionStream << expirationTimeInSeconds;
+    request.AddQueryStringParameter(Http::X_AMZ_EXPIRES_HEADER, intConversionStream.str());
+
+    if (!credentials.GetSessionToken().empty())
+    {
+        request.AddQueryStringParameter(Http::AWS_SECURITY_TOKEN, credentials.GetSessionToken());
+    }
+
+    //calculate date header to use in internal signature (this also goes into date header).
+    DateTime now = GetSigningTimestamp();
+    Aws::String dateQueryValue = now.ToGmtString(DateFormat::ISO_8601_BASIC);
+    request.AddQueryStringParameter(Http::AWS_DATE_HEADER, dateQueryValue);
+
+    Aws::StringStream headersStream;
+    Aws::StringStream signedHeadersStream;
+    for (const auto& header : CanonicalizeHeaders(request.GetHeaders()))
+    {
+        if(ShouldSignHeader(header.first))
+        {
+            headersStream << header.first.c_str() << ":" << header.second.c_str() << NEWLINE;
+            signedHeadersStream << header.first.c_str() << ";";
+        }
+    }
+
+    Aws::String canonicalHeadersString = headersStream.str();
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Header String: " << canonicalHeadersString);
+
+    //calculate signed headers parameter
+    Aws::String signedHeadersValue(signedHeadersStream.str());
+    //remove that last semi-colon
+    if (!signedHeadersValue.empty())
+    {
+        signedHeadersValue.pop_back();
+    }
+
+    request.AddQueryStringParameter(X_AMZ_SIGNED_HEADERS, signedHeadersValue);
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Signed Headers value: " << signedHeadersValue);
+
+    Aws::StringStream ss;
+    Aws::String signingRegion = region ? region : m_region;
+    Aws::String signingServiceName = serviceName ? serviceName : m_serviceName;
+    Aws::String simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR);
+    ss << credentials.GetAWSAccessKeyId() << "/" << simpleDate
+        << "/" << signingRegion << "/" << signingServiceName << "/" << AWS4_REQUEST;
+
+    request.AddQueryStringParameter(X_AMZ_ALGORITHM, AWS_HMAC_SHA256);
+    request.AddQueryStringParameter(X_AMZ_CREDENTIAL, ss.str());
+    ss.str("");
+
+    request.SetSigningAccessKey(credentials.GetAWSAccessKeyId());
+    request.SetSigningRegion(signingRegion);
+
+    //generate generalized canonicalized request string.
+    Aws::String canonicalRequestString = CanonicalizeRequestSigningString(request, m_urlEscapePath);
+
+    //append v4 stuff to the canonical request string.
+    canonicalRequestString.append(canonicalHeadersString);
+    canonicalRequestString.append(NEWLINE);
+    canonicalRequestString.append(signedHeadersValue);
+    canonicalRequestString.append(NEWLINE);
+    if (ServiceRequireUnsignedPayload(signingServiceName))
+    {
+        canonicalRequestString.append(UNSIGNED_PAYLOAD);
+    }
+    else
+    {
+        canonicalRequestString.append(EMPTY_STRING_SHA256);
+    }
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Request String: " << canonicalRequestString);
+
+    //now compute sha256 on that request string
+    auto hashResult = m_hash->Calculate(canonicalRequestString);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to hash (sha256) request string");
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "The request string is: \"" << canonicalRequestString << "\"");
+        return false;
+    }
+
+    auto sha256Digest = hashResult.GetResult();
+    auto canonicalRequestHash = HashingUtils::HexEncode(sha256Digest);
+
+    auto stringToSign = GenerateStringToSign(dateQueryValue, simpleDate, canonicalRequestHash, signingRegion, signingServiceName);
+    auto finalSigningHash = GenerateSignature(credentials, stringToSign, simpleDate, signingRegion, signingServiceName);
+    if (finalSigningHash.empty())
+    {
+        return false;
+    }
+
+    //add that the signature to the query string
+    request.AddQueryStringParameter(X_AMZ_SIGNATURE, finalSigningHash);
+
+    return true;
+}
+
+bool AWSAuthV4Signer::ServiceRequireUnsignedPayload(const Aws::String& serviceName) const
+{
+    // S3 uses a magic string (instead of the empty string) for its body hash for presigned URLs as outlined here:
+    // https://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-query-string-auth.html
+    // this is true for PUT, POST, GET, DELETE and HEAD operations.
+    // However, other services (for example RDS) implement the specification as outlined here:
+    // https://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
+    // which states that body-less requests should use the empty-string SHA256 hash.
+    return "s3" == serviceName;
+}
+
+Aws::String AWSAuthV4Signer::GenerateSignature(const AWSCredentials& credentials, const Aws::String& stringToSign,
+        const Aws::String& simpleDate, const Aws::String& region, const Aws::String& serviceName) const
+{
+    auto key = ComputeHash(credentials.GetAWSSecretKey(), simpleDate, region, serviceName);
+    return GenerateSignature(stringToSign, key);
+}
+
+Aws::String AWSAuthV4Signer::GenerateSignature(const Aws::String& stringToSign, const ByteBuffer& key) const
+{
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Final String to sign: " << stringToSign);
+
+    Aws::StringStream ss;
+
+    auto hashResult = m_HMAC->Calculate(ByteBuffer((unsigned char*)stringToSign.c_str(), stringToSign.length()), key);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Unable to hmac (sha256) final string");
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "The final string is: \"" << stringToSign << "\"");
+        return {};
+    }
+
+    //now we finally sign our request string with our hex encoded derived hash.
+    auto finalSigningDigest = hashResult.GetResult();
+
+    auto finalSigningHash = HashingUtils::HexEncode(finalSigningDigest);
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Final computed signing hash: " << finalSigningHash);
+
+    return finalSigningHash;
+}
+
+Aws::String AWSAuthV4Signer::ComputePayloadHash(Aws::Http::HttpRequest& request) const
+{
+    if (!request.GetContentBody())
+    {
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "Using cached empty string sha256 " << EMPTY_STRING_SHA256 << " because payload is empty.");
+        return EMPTY_STRING_SHA256;
+    }
+
+    //compute hash on payload if it exists.
+    auto hashResult =  m_hash->Calculate(*request.GetContentBody());
+
+    if(request.GetContentBody())
+    {
+        request.GetContentBody()->clear();
+        request.GetContentBody()->seekg(0);
+    }
+
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Unable to hash (sha256) request body");
+        return {};
+    }
+
+    auto sha256Digest = hashResult.GetResult();
+
+    Aws::String payloadHash(HashingUtils::HexEncode(sha256Digest));
+    AWS_LOGSTREAM_DEBUG(v4LogTag, "Calculated sha256 " << payloadHash << " for payload.");
+    return payloadHash;
+}
+
+Aws::String AWSAuthV4Signer::GenerateStringToSign(const Aws::String& dateValue, const Aws::String& simpleDate,
+        const Aws::String& canonicalRequestHash, const Aws::String& region, const Aws::String& serviceName) const
+{
+    //generate the actual string we will use in signing the final request.
+    Aws::StringStream ss;
+
+    ss << AWS_HMAC_SHA256 << NEWLINE << dateValue << NEWLINE << simpleDate << "/" << region << "/"
+        << serviceName << "/" << AWS4_REQUEST << NEWLINE << canonicalRequestHash;
+
+    return ss.str();
+}
+
+Aws::Utils::ByteBuffer AWSAuthV4Signer::ComputeHash(const Aws::String& secretKey,
+        const Aws::String& simpleDate, const Aws::String& region, const Aws::String& serviceName) const
+{
+    Aws::String signingKey(SIGNING_KEY);
+    signingKey.append(secretKey);
+    auto hashResult = m_HMAC->Calculate(ByteBuffer((unsigned char*)simpleDate.c_str(), simpleDate.length()),
+            ByteBuffer((unsigned char*)signingKey.c_str(), signingKey.length()));
+
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to HMAC (SHA256) date string \"" << simpleDate << "\"");
+        return {};
+    }
+
+    auto kDate = hashResult.GetResult();
+    hashResult = m_HMAC->Calculate(ByteBuffer((unsigned char*)region.c_str(), region.length()), kDate);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to HMAC (SHA256) region string \"" << region << "\"");
+        return {};
+    }
+
+    auto kRegion = hashResult.GetResult();
+    hashResult = m_HMAC->Calculate(ByteBuffer((unsigned char*)serviceName.c_str(), serviceName.length()), kRegion);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to HMAC (SHA256) service string \"" << m_serviceName << "\"");
+        return {};
+    }
+
+    auto kService = hashResult.GetResult();
+    hashResult = m_HMAC->Calculate(ByteBuffer((unsigned char*)AWS4_REQUEST, strlen(AWS4_REQUEST)), kService);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4LogTag, "Unable to HMAC (SHA256) request string");
+        AWS_LOGSTREAM_DEBUG(v4LogTag, "The request string is: \"" << AWS4_REQUEST << "\"");
+        return {};
+    }
+    return hashResult.GetResult();
+}
+
+AWSAuthEventStreamV4Signer::AWSAuthEventStreamV4Signer(const std::shared_ptr<Auth::AWSCredentialsProvider>&
+        credentialsProvider, const char* serviceName, const Aws::String& region) :
+    m_serviceName(serviceName),
+    m_region(region),
+    m_credentialsProvider(credentialsProvider)
+{
+
+    m_unsignedHeaders.emplace_back(X_AMZN_TRACE_ID);
+    m_unsignedHeaders.emplace_back(USER_AGENT_HEADER);
+}
+
+bool AWSAuthEventStreamV4Signer::SignRequest(Aws::Http::HttpRequest& request, const char* region, const char* serviceName, bool /* signBody */) const
+{
+    AWSCredentials credentials = m_credentialsProvider->GetAWSCredentials();
+
+    //don't sign anonymous requests
+    if (credentials.GetAWSAccessKeyId().empty() || credentials.GetAWSSecretKey().empty())
+    {
+        return true;
+    }
+
+    if (!credentials.GetSessionToken().empty())
+    {
+        request.SetAwsSessionToken(credentials.GetSessionToken());
+    }
+
+    request.SetHeaderValue(X_AMZ_CONTENT_SHA256, EVENT_STREAM_CONTENT_SHA256);
+
+    //calculate date header to use in internal signature (this also goes into date header).
+    DateTime now = GetSigningTimestamp();
+    Aws::String dateHeaderValue = now.ToGmtString(DateFormat::ISO_8601_BASIC);
+    request.SetHeaderValue(AWS_DATE_HEADER, dateHeaderValue);
+
+    Aws::StringStream headersStream;
+    Aws::StringStream signedHeadersStream;
+
+    for (const auto& header : CanonicalizeHeaders(request.GetHeaders()))
+    {
+        if(ShouldSignHeader(header.first))
+        {
+            headersStream << header.first.c_str() << ":" << header.second.c_str() << NEWLINE;
+            signedHeadersStream << header.first.c_str() << ";";
+        }
+    }
+
+    Aws::String canonicalHeadersString = headersStream.str();
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Canonical Header String: " << canonicalHeadersString);
+
+    //calculate signed headers parameter
+    Aws::String signedHeadersValue = signedHeadersStream.str();
+    //remove that last semi-colon
+    if (!signedHeadersValue.empty())
+    {
+        signedHeadersValue.pop_back();
+    }
+
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Signed Headers value:" << signedHeadersValue);
+
+    //generate generalized canonicalized request string.
+    Aws::String canonicalRequestString = CanonicalizeRequestSigningString(request, true/* m_urlEscapePath */);
+
+    //append v4 stuff to the canonical request string.
+    canonicalRequestString.append(canonicalHeadersString);
+    canonicalRequestString.append(NEWLINE);
+    canonicalRequestString.append(signedHeadersValue);
+    canonicalRequestString.append(NEWLINE);
+    canonicalRequestString.append(EVENT_STREAM_CONTENT_SHA256);
+
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Canonical Request String: " << canonicalRequestString);
+
+    //now compute sha256 on that request string
+    auto hashResult = m_hash.Calculate(canonicalRequestString);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to hash (sha256) request string");
+        AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "The request string is: \"" << canonicalRequestString << "\"");
+        return false;
+    }
+
+    auto sha256Digest = hashResult.GetResult();
+    Aws::String canonicalRequestHash = HashingUtils::HexEncode(sha256Digest);
+    Aws::String simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR);
+
+    Aws::String signingRegion = region ? region : m_region;
+    Aws::String signingServiceName = serviceName ? serviceName : m_serviceName;
+    Aws::String stringToSign = GenerateStringToSign(dateHeaderValue, simpleDate, canonicalRequestHash, signingRegion, signingServiceName);
+    auto finalSignature = GenerateSignature(credentials, stringToSign, simpleDate, signingRegion, signingServiceName);
+
+    Aws::StringStream ss;
+    ss << AWS_HMAC_SHA256 << " " << CREDENTIAL << EQ << credentials.GetAWSAccessKeyId() << "/" << simpleDate
+        << "/" << signingRegion << "/" << signingServiceName << "/" << AWS4_REQUEST << ", " << SIGNED_HEADERS << EQ
+        << signedHeadersValue << ", " << SIGNATURE << EQ << HashingUtils::HexEncode(finalSignature);
+
+    auto awsAuthString = ss.str();
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Signing request with: " << awsAuthString);
+    request.SetAwsAuthorization(awsAuthString);
+    request.SetSigningAccessKey(credentials.GetAWSAccessKeyId());
+    request.SetSigningRegion(signingRegion);
+    return true;
+}
+
+// this works regardless if the current machine is Big/Little Endian
+static void WriteBigEndian(Aws::String& str, uint64_t n)
+{
+    int shift = 56;
+    while(shift >= 0)
+    {
+        str.push_back((n >> shift) & 0xFF);
+        shift -= 8;
+    }
+}
+
+bool AWSAuthEventStreamV4Signer::SignEventMessage(Event::Message& message, Aws::String& priorSignature) const
+{
+    using Event::EventHeaderValue;
+
+    Aws::StringStream stringToSign;
+    stringToSign << EVENT_STREAM_PAYLOAD << NEWLINE;
+    const DateTime now = GetSigningTimestamp();
+    const auto simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR);
+    stringToSign << now.ToGmtString(DateFormat::ISO_8601_BASIC) << NEWLINE
+        <<  simpleDate << "/" << m_region << "/"
+        << m_serviceName << "/aws4_request" << NEWLINE << priorSignature << NEWLINE;
+
+
+    Aws::String nonSignatureHeaders;
+    nonSignatureHeaders.push_back(char(sizeof(EVENTSTREAM_DATE_HEADER) - 1)); // length of the string
+    nonSignatureHeaders += EVENTSTREAM_DATE_HEADER;
+    nonSignatureHeaders.push_back(static_cast<char>(EventHeaderValue::EventHeaderType::TIMESTAMP)); // type of the value
+    WriteBigEndian(nonSignatureHeaders, static_cast<uint64_t>(now.Millis())); // the value of the timestamp in big-endian
+
+    auto hashOutcome = m_hash.Calculate(nonSignatureHeaders);
+    if (!hashOutcome.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to hash (sha256) non-signature headers.");
+        return false;
+    }
+
+    const auto nonSignatureHeadersHash = hashOutcome.GetResult();
+    stringToSign << HashingUtils::HexEncode(nonSignatureHeadersHash) << NEWLINE;
+
+    if (message.GetEventPayload().empty())
+    {
+        AWS_LOGSTREAM_WARN(v4StreamingLogTag, "Attempting to sign an empty message (no payload and no headers). "
+                "It is unlikely that this is the intended behavior.");
+    }
+    else
+    {
+        // use a preallocatedStreamBuf to avoid making a copy.
+        // The Hashing API requires either Aws::String or IStream as input.
+        // TODO: the hashing API should be accept 'unsigned char*' as input.
+        Utils::Stream::PreallocatedStreamBuf streamBuf(message.GetEventPayload().data(), message.GetEventPayload().size());
+        Aws::IOStream payload(&streamBuf);
+        hashOutcome = m_hash.Calculate(payload);
+
+        if (!hashOutcome.IsSuccess())
+        {
+            AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to hash (sha256) non-signature headers.");
+            return false;
+        }
+        const auto payloadHash = hashOutcome.GetResult();
+        stringToSign << HashingUtils::HexEncode(payloadHash);
+        AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Payload hash  - " << HashingUtils::HexEncode(payloadHash));
+    }
+
+    Utils::ByteBuffer finalSignatureDigest = GenerateSignature(m_credentialsProvider->GetAWSCredentials(), stringToSign.str(), simpleDate, m_region, m_serviceName);
+    const auto finalSignature = HashingUtils::HexEncode(finalSignatureDigest);
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Final computed signing hash: " << finalSignature);
+    priorSignature = finalSignature;
+
+    message.InsertEventHeader(EVENTSTREAM_DATE_HEADER, EventHeaderValue(now.Millis(), EventHeaderValue::EventHeaderType::TIMESTAMP));
+    message.InsertEventHeader(EVENTSTREAM_SIGNATURE_HEADER, std::move(finalSignatureDigest));
+
+    AWS_LOGSTREAM_INFO(v4StreamingLogTag, "Event chunk final signature - " << finalSignature);
+    return true;
+}
+
+bool AWSAuthEventStreamV4Signer::ShouldSignHeader(const Aws::String& header) const
+{
+    return std::find(m_unsignedHeaders.cbegin(), m_unsignedHeaders.cend(), Aws::Utils::StringUtils::ToLower(header.c_str())) == m_unsignedHeaders.cend();
+}
+
+Utils::ByteBuffer AWSAuthEventStreamV4Signer::GenerateSignature(const AWSCredentials& credentials, const Aws::String& stringToSign,
+        const Aws::String& simpleDate, const Aws::String& region, const Aws::String& serviceName) const
+{
+    Utils::Threading::ReaderLockGuard guard(m_derivedKeyLock);
+    const auto& secretKey = credentials.GetAWSSecretKey();
+    if (secretKey != m_currentSecretKey || simpleDate != m_currentDateStr)
+    {
+        guard.UpgradeToWriterLock();
+        // double-checked lock to prevent updating twice
+        if (m_currentDateStr != simpleDate || m_currentSecretKey != secretKey)
+        {
+            m_currentSecretKey = secretKey;
+            m_currentDateStr = simpleDate;
+            m_derivedKey = ComputeHash(m_currentSecretKey, m_currentDateStr, region, serviceName);
+        }
+
+    }
+    return GenerateSignature(stringToSign, m_derivedKey);
+}
+
+Utils::ByteBuffer AWSAuthEventStreamV4Signer::GenerateSignature(const Aws::String& stringToSign, const ByteBuffer& key) const
+{
+    AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "Final String to sign: " << stringToSign);
+
+    Aws::StringStream ss;
+
+    auto hashResult = m_HMAC.Calculate(ByteBuffer((unsigned char*)stringToSign.c_str(), stringToSign.length()), key);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Unable to hmac (sha256) final string");
+        AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "The final string is: \"" << stringToSign << "\"");
+        return {};
+    }
+
+    return hashResult.GetResult();
+}
+
+Aws::String AWSAuthEventStreamV4Signer::GenerateStringToSign(const Aws::String& dateValue, const Aws::String& simpleDate,
+        const Aws::String& canonicalRequestHash, const Aws::String& region, const Aws::String& serviceName) const
+{
+    //generate the actual string we will use in signing the final request.
+    Aws::StringStream ss;
+
+    ss << AWS_HMAC_SHA256 << NEWLINE << dateValue << NEWLINE << simpleDate << "/" << region << "/"
+        << serviceName << "/" << AWS4_REQUEST << NEWLINE << canonicalRequestHash;
+
+    return ss.str();
+}
+
+Aws::Utils::ByteBuffer AWSAuthEventStreamV4Signer::ComputeHash(const Aws::String& secretKey,
+        const Aws::String& simpleDate, const Aws::String& region, const Aws::String& serviceName) const
+{
+    Aws::String signingKey(SIGNING_KEY);
+    signingKey.append(secretKey);
+    auto hashResult = m_HMAC.Calculate(ByteBuffer((unsigned char*)simpleDate.c_str(), simpleDate.length()),
+            ByteBuffer((unsigned char*)signingKey.c_str(), signingKey.length()));
+
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to HMAC (SHA256) date string \"" << simpleDate << "\"");
+        return {};
+    }
+
+    auto kDate = hashResult.GetResult();
+    hashResult = m_HMAC.Calculate(ByteBuffer((unsigned char*)region.c_str(), region.length()), kDate);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to HMAC (SHA256) region string \"" << region << "\"");
+        return {};
+    }
+
+    auto kRegion = hashResult.GetResult();
+    hashResult = m_HMAC.Calculate(ByteBuffer((unsigned char*)serviceName.c_str(), serviceName.length()), kRegion);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Failed to HMAC (SHA256) service string \"" << m_serviceName << "\"");
+        return {};
+    }
+
+    auto kService = hashResult.GetResult();
+    hashResult = m_HMAC.Calculate(ByteBuffer((unsigned char*)AWS4_REQUEST, strlen(AWS4_REQUEST)), kService);
+    if (!hashResult.IsSuccess())
+    {
+        AWS_LOGSTREAM_ERROR(v4StreamingLogTag, "Unable to HMAC (SHA256) request string");
+        AWS_LOGSTREAM_DEBUG(v4StreamingLogTag, "The request string is: \"" << AWS4_REQUEST << "\"");
+        return {};
+    }
+    return hashResult.GetResult();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSignerProvider.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSignerProvider.cpp
new file mode 100644
index 0000000000..31fd6c006b
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSAuthSignerProvider.cpp
@@ -0,0 +1,51 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/auth/AWSAuthSignerProvider.h>
+#include <aws/core/auth/AWSAuthSigner.h>
+#include <aws/core/auth/AWSCredentialsProvider.h>
+#include <aws/core/utils/memory/stl/AWSAllocator.h>
+
+const char CLASS_TAG[] = "AuthSignerProvider";
+
+using namespace Aws::Auth;
+
+DefaultAuthSignerProvider::DefaultAuthSignerProvider(const std::shared_ptr<AWSCredentialsProvider>& credentialsProvider,
+        const Aws::String& serviceName, const Aws::String& region)
+{
+    m_signers.emplace_back(Aws::MakeShared<Aws::Client::AWSAuthV4Signer>(CLASS_TAG, credentialsProvider, serviceName.c_str(), region));
+    m_signers.emplace_back(Aws::MakeShared<Aws::Client::AWSAuthEventStreamV4Signer>(CLASS_TAG, credentialsProvider, serviceName.c_str(), region));
+    m_signers.emplace_back(Aws::MakeShared<Aws::Client::AWSNullSigner>(CLASS_TAG));
+}
+
+DefaultAuthSignerProvider::DefaultAuthSignerProvider(const std::shared_ptr<Aws::Client::AWSAuthSigner>& signer)
+{
+    m_signers.emplace_back(Aws::MakeShared<Aws::Client::AWSNullSigner>(CLASS_TAG));
+    if(signer)
+    {
+        m_signers.emplace_back(signer);
+    }
+}
+
+std::shared_ptr<Aws::Client::AWSAuthSigner> DefaultAuthSignerProvider::GetSigner(const Aws::String& signerName) const
+{
+    for(const auto& signer : m_signers)
+    {
+        if(signer->GetName() == signerName)
+        {
+            return signer;
+        }
+    }
+    AWS_LOGSTREAM_ERROR(CLASS_TAG, "Request's signer: '" << signerName << "' is not found in the signer's map.");
+    assert(false);
+    return nullptr;
+}
+
+void DefaultAuthSignerProvider::AddSigner(std::shared_ptr<Aws::Client::AWSAuthSigner>& signer)
+{
+    assert(signer);
+    m_signers.emplace_back(signer);
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProvider.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProvider.cpp
new file mode 100644
index 0000000000..31e28b996f
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProvider.cpp
@@ -0,0 +1,466 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/auth/AWSCredentialsProvider.h>
+
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/platform/FileSystem.h>
+#include <aws/core/platform/OSVersionInfo.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/json/JsonSerializer.h>
+#include <aws/core/utils/FileSystemUtils.h>
+#include <aws/core/client/AWSError.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/xml/XmlSerializer.h>
+#include <cstdlib>
+#include <fstream>
+#include <string.h>
+#include <climits>
+
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+using namespace Aws::Auth;
+using namespace Aws::Internal;
+using namespace Aws::FileSystem;
+using namespace Aws::Utils::Xml;
+using namespace Aws::Client;
+using Aws::Utils::Threading::ReaderLockGuard;
+using Aws::Utils::Threading::WriterLockGuard;
+
+static const char ACCESS_KEY_ENV_VAR[] = "AWS_ACCESS_KEY_ID";
+static const char SECRET_KEY_ENV_VAR[] = "AWS_SECRET_ACCESS_KEY";
+static const char SESSION_TOKEN_ENV_VAR[] = "AWS_SESSION_TOKEN";
+static const char DEFAULT_PROFILE[] = "default";
+static const char AWS_PROFILE_ENV_VAR[] = "AWS_PROFILE";
+static const char AWS_PROFILE_DEFAULT_ENV_VAR[] = "AWS_DEFAULT_PROFILE";
+
+static const char AWS_CREDENTIALS_FILE[] = "AWS_SHARED_CREDENTIALS_FILE";
+extern const char AWS_CONFIG_FILE[] = "AWS_CONFIG_FILE";
+
+extern const char PROFILE_DIRECTORY[] = ".aws";
+static const char DEFAULT_CREDENTIALS_FILE[] = "credentials";
+extern const char DEFAULT_CONFIG_FILE[] = "config";
+
+
+static const int EXPIRATION_GRACE_PERIOD = 5 * 1000;
+
+void AWSCredentialsProvider::Reload()
+{
+    m_lastLoadedMs = DateTime::Now().Millis();
+}
+
+bool AWSCredentialsProvider::IsTimeToRefresh(long reloadFrequency)
+{
+    if (DateTime::Now().Millis() - m_lastLoadedMs > reloadFrequency)
+    {
+        return true;
+    }
+    return false;
+}
+
+
+static const char* ENVIRONMENT_LOG_TAG = "EnvironmentAWSCredentialsProvider";
+
+
+AWSCredentials EnvironmentAWSCredentialsProvider::GetAWSCredentials()
+{
+    auto accessKey = Aws::Environment::GetEnv(ACCESS_KEY_ENV_VAR);
+    AWSCredentials credentials;
+
+    if (!accessKey.empty())
+    {
+        credentials.SetAWSAccessKeyId(accessKey);
+
+        AWS_LOGSTREAM_DEBUG(ENVIRONMENT_LOG_TAG, "Found credential in environment with access key id " << accessKey);
+        auto secretKey = Aws::Environment::GetEnv(SECRET_KEY_ENV_VAR);
+
+        if (!secretKey.empty())
+        {
+            credentials.SetAWSSecretKey(secretKey);
+            AWS_LOGSTREAM_INFO(ENVIRONMENT_LOG_TAG, "Found secret key");
+        }
+
+        auto sessionToken = Aws::Environment::GetEnv(SESSION_TOKEN_ENV_VAR);
+
+        if(!sessionToken.empty())
+        {
+            credentials.SetSessionToken(sessionToken);
+            AWS_LOGSTREAM_INFO(ENVIRONMENT_LOG_TAG, "Found sessionToken");
+        }
+    }
+
+    return credentials;
+}
+
+Aws::String Aws::Auth::GetConfigProfileFilename()
+{
+    auto configFileNameFromVar = Aws::Environment::GetEnv(AWS_CONFIG_FILE);
+    if (!configFileNameFromVar.empty())
+    {
+        return configFileNameFromVar;
+    }
+    else
+    {
+        return Aws::FileSystem::GetHomeDirectory() + PROFILE_DIRECTORY + PATH_DELIM + DEFAULT_CONFIG_FILE;
+    }
+}
+
+Aws::String Aws::Auth::GetConfigProfileName()
+{
+    auto profileFromVar = Aws::Environment::GetEnv(AWS_PROFILE_DEFAULT_ENV_VAR);
+    if (profileFromVar.empty())
+    {
+        profileFromVar = Aws::Environment::GetEnv(AWS_PROFILE_ENV_VAR);
+    }
+
+    if (profileFromVar.empty())
+    {
+        return Aws::String(DEFAULT_PROFILE);
+    }
+    else
+    {
+        return profileFromVar;
+    }
+}
+
+static const char* PROFILE_LOG_TAG = "ProfileConfigFileAWSCredentialsProvider";
+
+Aws::String ProfileConfigFileAWSCredentialsProvider::GetCredentialsProfileFilename()
+{
+    auto credentialsFileNameFromVar = Aws::Environment::GetEnv(AWS_CREDENTIALS_FILE);
+
+    if (credentialsFileNameFromVar.empty())
+    {
+        return Aws::FileSystem::GetHomeDirectory() + PROFILE_DIRECTORY + PATH_DELIM + DEFAULT_CREDENTIALS_FILE;
+    }
+    else
+    {
+        return credentialsFileNameFromVar;
+    }
+}
+
+Aws::String ProfileConfigFileAWSCredentialsProvider::GetProfileDirectory()
+{
+    Aws::String credentialsFileName = GetCredentialsProfileFilename();
+    auto lastSeparator = credentialsFileName.find_last_of(PATH_DELIM);
+    if (lastSeparator != std::string::npos)
+    {
+        return credentialsFileName.substr(0, lastSeparator);
+    }
+    else
+    {
+        return {};
+    }
+}
+
+ProfileConfigFileAWSCredentialsProvider::ProfileConfigFileAWSCredentialsProvider(long refreshRateMs) :
+    m_profileToUse(Aws::Auth::GetConfigProfileName()),
+    m_credentialsFileLoader(GetCredentialsProfileFilename()),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(PROFILE_LOG_TAG, "Setting provider to read credentials from " <<  GetCredentialsProfileFilename() << " for credentials file"
+                                      << " and " <<  GetConfigProfileFilename() << " for the config file "
+                                      << ", for use with profile " << m_profileToUse);
+}
+
+ProfileConfigFileAWSCredentialsProvider::ProfileConfigFileAWSCredentialsProvider(const char* profile, long refreshRateMs) :
+    m_profileToUse(profile),
+    m_credentialsFileLoader(GetCredentialsProfileFilename()),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(PROFILE_LOG_TAG, "Setting provider to read credentials from " <<  GetCredentialsProfileFilename() << " for credentials file"
+                                      << " and " <<  GetConfigProfileFilename() << " for the config file "
+                                      << ", for use with profile " << m_profileToUse);
+}
+
+AWSCredentials ProfileConfigFileAWSCredentialsProvider::GetAWSCredentials()
+{
+    RefreshIfExpired();
+    ReaderLockGuard guard(m_reloadLock);
+    auto credsFileProfileIter = m_credentialsFileLoader.GetProfiles().find(m_profileToUse);
+
+    if(credsFileProfileIter != m_credentialsFileLoader.GetProfiles().end())
+    {
+        return credsFileProfileIter->second.GetCredentials();
+    }
+
+    return AWSCredentials();
+}
+
+
+void ProfileConfigFileAWSCredentialsProvider::Reload()
+{
+    m_credentialsFileLoader.Load();
+    AWSCredentialsProvider::Reload();
+}
+
+void ProfileConfigFileAWSCredentialsProvider::RefreshIfExpired()
+{
+    ReaderLockGuard guard(m_reloadLock);
+    if (!IsTimeToRefresh(m_loadFrequencyMs))
+    {
+       return;
+    }
+
+    guard.UpgradeToWriterLock();
+    if (!IsTimeToRefresh(m_loadFrequencyMs)) // double-checked lock to avoid refreshing twice
+    {
+        return;
+    }
+
+    Reload();
+}
+
+static const char* INSTANCE_LOG_TAG = "InstanceProfileCredentialsProvider";
+
+InstanceProfileCredentialsProvider::InstanceProfileCredentialsProvider(long refreshRateMs) :
+    m_ec2MetadataConfigLoader(Aws::MakeShared<Aws::Config::EC2InstanceProfileConfigLoader>(INSTANCE_LOG_TAG)),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(INSTANCE_LOG_TAG, "Creating Instance with default EC2MetadataClient and refresh rate " << refreshRateMs);
+}
+
+
+InstanceProfileCredentialsProvider::InstanceProfileCredentialsProvider(const std::shared_ptr<Aws::Config::EC2InstanceProfileConfigLoader>& loader, long refreshRateMs) :
+    m_ec2MetadataConfigLoader(loader),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(INSTANCE_LOG_TAG, "Creating Instance with injected EC2MetadataClient and refresh rate " << refreshRateMs);
+}
+
+
+AWSCredentials InstanceProfileCredentialsProvider::GetAWSCredentials()
+{
+    RefreshIfExpired();
+    ReaderLockGuard guard(m_reloadLock);
+    auto profileIter = m_ec2MetadataConfigLoader->GetProfiles().find(Aws::Config::INSTANCE_PROFILE_KEY);
+
+    if(profileIter != m_ec2MetadataConfigLoader->GetProfiles().end())
+    {
+        return profileIter->second.GetCredentials();
+    }
+
+    return AWSCredentials();
+}
+
+void InstanceProfileCredentialsProvider::Reload()
+{
+    AWS_LOGSTREAM_INFO(INSTANCE_LOG_TAG, "Credentials have expired attempting to repull from EC2 Metadata Service.");
+    m_ec2MetadataConfigLoader->Load();
+    AWSCredentialsProvider::Reload();
+}
+
+void InstanceProfileCredentialsProvider::RefreshIfExpired()
+{
+    AWS_LOGSTREAM_DEBUG(INSTANCE_LOG_TAG, "Checking if latest credential pull has expired.");
+    ReaderLockGuard guard(m_reloadLock);
+    if (!IsTimeToRefresh(m_loadFrequencyMs))
+    {
+        return;
+    }
+
+    guard.UpgradeToWriterLock();
+    if (!IsTimeToRefresh(m_loadFrequencyMs)) // double-checked lock to avoid refreshing twice
+    {
+        return;
+    }
+    Reload();
+}
+
+static const char TASK_ROLE_LOG_TAG[] = "TaskRoleCredentialsProvider";
+
+TaskRoleCredentialsProvider::TaskRoleCredentialsProvider(const char* URI, long refreshRateMs) :
+    m_ecsCredentialsClient(Aws::MakeShared<Aws::Internal::ECSCredentialsClient>(TASK_ROLE_LOG_TAG, URI)),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(TASK_ROLE_LOG_TAG, "Creating TaskRole with default ECSCredentialsClient and refresh rate " << refreshRateMs);
+}
+
+TaskRoleCredentialsProvider::TaskRoleCredentialsProvider(const char* endpoint, const char* token, long refreshRateMs) :
+    m_ecsCredentialsClient(Aws::MakeShared<Aws::Internal::ECSCredentialsClient>(TASK_ROLE_LOG_TAG, ""/*resourcePath*/, endpoint, token)),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(TASK_ROLE_LOG_TAG, "Creating TaskRole with default ECSCredentialsClient and refresh rate " << refreshRateMs);
+}
+
+TaskRoleCredentialsProvider::TaskRoleCredentialsProvider(
+        const std::shared_ptr<Aws::Internal::ECSCredentialsClient>& client, long refreshRateMs) :
+    m_ecsCredentialsClient(client),
+    m_loadFrequencyMs(refreshRateMs)
+{
+    AWS_LOGSTREAM_INFO(TASK_ROLE_LOG_TAG, "Creating TaskRole with default ECSCredentialsClient and refresh rate " << refreshRateMs);
+}
+
+AWSCredentials TaskRoleCredentialsProvider::GetAWSCredentials()
+{
+    RefreshIfExpired();
+    ReaderLockGuard guard(m_reloadLock);
+    return m_credentials;
+}
+
+bool TaskRoleCredentialsProvider::ExpiresSoon() const
+{
+    return ((m_credentials.GetExpiration() - Aws::Utils::DateTime::Now()).count() < EXPIRATION_GRACE_PERIOD);
+}
+
+void TaskRoleCredentialsProvider::Reload()
+{
+    AWS_LOGSTREAM_INFO(TASK_ROLE_LOG_TAG, "Credentials have expired or will expire, attempting to repull from ECS IAM Service.");
+
+    auto credentialsStr = m_ecsCredentialsClient->GetECSCredentials();
+    if (credentialsStr.empty()) return;
+
+    Json::JsonValue credentialsDoc(credentialsStr);
+    if (!credentialsDoc.WasParseSuccessful())
+    {
+        AWS_LOGSTREAM_ERROR(TASK_ROLE_LOG_TAG, "Failed to parse output from ECSCredentialService.");
+        return;
+    }
+
+    Aws::String accessKey, secretKey, token;
+    Utils::Json::JsonView credentialsView(credentialsDoc);
+    accessKey = credentialsView.GetString("AccessKeyId");
+    secretKey = credentialsView.GetString("SecretAccessKey");
+    token = credentialsView.GetString("Token");
+    AWS_LOGSTREAM_DEBUG(TASK_ROLE_LOG_TAG, "Successfully pulled credentials from metadata service with access key " << accessKey);
+
+    m_credentials.SetAWSAccessKeyId(accessKey);
+    m_credentials.SetAWSSecretKey(secretKey);
+    m_credentials.SetSessionToken(token);
+    m_credentials.SetExpiration(Aws::Utils::DateTime(credentialsView.GetString("Expiration"), DateFormat::ISO_8601));
+    AWSCredentialsProvider::Reload();
+}
+
+void TaskRoleCredentialsProvider::RefreshIfExpired()
+{
+    AWS_LOGSTREAM_DEBUG(TASK_ROLE_LOG_TAG, "Checking if latest credential pull has expired.");
+    ReaderLockGuard guard(m_reloadLock);
+    if (!m_credentials.IsEmpty() && !IsTimeToRefresh(m_loadFrequencyMs) && !ExpiresSoon())
+    {
+        return;
+    }
+
+    guard.UpgradeToWriterLock();
+
+    if (!m_credentials.IsEmpty() && !IsTimeToRefresh(m_loadFrequencyMs) && !ExpiresSoon())
+    {
+        return;
+    }
+
+    Reload();
+}
+
+static const char PROCESS_LOG_TAG[] = "ProcessCredentialsProvider";
+ProcessCredentialsProvider::ProcessCredentialsProvider() :
+    m_profileToUse(Aws::Auth::GetConfigProfileName())
+{
+    AWS_LOGSTREAM_INFO(PROCESS_LOG_TAG, "Setting process credentials provider to read config from " <<  m_profileToUse);
+}
+
+ProcessCredentialsProvider::ProcessCredentialsProvider(const Aws::String& profile) :
+    m_profileToUse(profile)
+{
+    AWS_LOGSTREAM_INFO(PROCESS_LOG_TAG, "Setting process credentials provider to read config from " <<  m_profileToUse);
+}
+
+AWSCredentials ProcessCredentialsProvider::GetAWSCredentials()
+{
+    RefreshIfExpired();
+    ReaderLockGuard guard(m_reloadLock);
+    return m_credentials;
+}
+
+
+void ProcessCredentialsProvider::Reload()
+{
+    auto profile = Aws::Config::GetCachedConfigProfile(m_profileToUse);
+    const Aws::String &command = profile.GetCredentialProcess();
+    if (command.empty())
+    {
+        AWS_LOGSTREAM_ERROR(PROCESS_LOG_TAG, "Failed to find credential process's profile: " << m_profileToUse);
+        return;
+    }
+    m_credentials = GetCredentialsFromProcess(command);
+}
+
+void ProcessCredentialsProvider::RefreshIfExpired()
+{
+    ReaderLockGuard guard(m_reloadLock);
+    if (!m_credentials.IsExpiredOrEmpty())
+    {
+       return;
+    }
+
+    guard.UpgradeToWriterLock();
+    if (!m_credentials.IsExpiredOrEmpty()) // double-checked lock to avoid refreshing twice
+    {
+        return;
+    }
+
+    Reload();
+}
+
+AWSCredentials Aws::Auth::GetCredentialsFromProcess(const Aws::String& process)
+{
+    Aws::String command = process;
+    command.append(" 2>&1"); // redirect stderr to stdout
+    Aws::String result = Aws::Utils::StringUtils::Trim(Aws::OSVersionInfo::GetSysCommandOutput(command.c_str()).c_str());
+    Json::JsonValue credentialsDoc(result);
+    if (!credentialsDoc.WasParseSuccessful())
+    {
+        AWS_LOGSTREAM_ERROR(PROFILE_LOG_TAG, "Failed to load credential from running: " << command << " Error: " << result);
+        return {};
+    }
+
+    Aws::Utils::Json::JsonView credentialsView(credentialsDoc);
+    if (!credentialsView.KeyExists("Version") || credentialsView.GetInteger("Version") != 1)
+    {
+        AWS_LOGSTREAM_ERROR(PROFILE_LOG_TAG, "Encountered an unsupported process credentials payload version:" << credentialsView.GetInteger("Version"));
+        return {};
+    }
+
+    AWSCredentials credentials;
+    Aws::String accessKey, secretKey, token, expire;
+    if (credentialsView.KeyExists("AccessKeyId"))
+    {
+        credentials.SetAWSAccessKeyId(credentialsView.GetString("AccessKeyId"));
+    }
+
+    if (credentialsView.KeyExists("SecretAccessKey"))
+    {
+        credentials.SetAWSSecretKey(credentialsView.GetString("SecretAccessKey"));
+    }
+
+    if (credentialsView.KeyExists("SessionToken"))
+    {
+        credentials.SetSessionToken(credentialsView.GetString("SessionToken"));
+    }
+
+    if (credentialsView.KeyExists("Expiration"))
+    {
+        const auto expiration = Aws::Utils::DateTime(credentialsView.GetString("Expiration"), DateFormat::ISO_8601);
+        if (expiration.WasParseSuccessful())
+        {
+            credentials.SetExpiration(expiration);
+        }
+        else
+        {
+            AWS_LOGSTREAM_ERROR(PROFILE_LOG_TAG, "Failed to parse credential's expiration value as an ISO 8601 Date. Credentials will be marked expired.");
+            credentials.SetExpiration(Aws::Utils::DateTime::Now());
+        }
+    }
+    else
+    {
+        credentials.SetExpiration((std::chrono::time_point<std::chrono::system_clock>::max)());
+    }
+
+    AWS_LOGSTREAM_DEBUG(PROFILE_LOG_TAG, "Successfully pulled credentials from process credential with AccessKey: " << accessKey << ", Expiration:" << credentialsView.GetString("Expiration"));
+    return credentials;
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProviderChain.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProviderChain.cpp
new file mode 100644
index 0000000000..373136d96a
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/AWSCredentialsProviderChain.cpp
@@ -0,0 +1,77 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/auth/AWSCredentialsProviderChain.h>
+#include <aws/core/auth/STSCredentialsProvider.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+using namespace Aws::Auth;
+
+static const char AWS_ECS_CONTAINER_CREDENTIALS_RELATIVE_URI[] = "AWS_CONTAINER_CREDENTIALS_RELATIVE_URI";
+static const char AWS_ECS_CONTAINER_CREDENTIALS_FULL_URI[] = "AWS_CONTAINER_CREDENTIALS_FULL_URI";
+static const char AWS_ECS_CONTAINER_AUTHORIZATION_TOKEN[] = "AWS_CONTAINER_AUTHORIZATION_TOKEN";
+static const char AWS_EC2_METADATA_DISABLED[] = "AWS_EC2_METADATA_DISABLED";
+static const char DefaultCredentialsProviderChainTag[] = "DefaultAWSCredentialsProviderChain";
+
+AWSCredentials AWSCredentialsProviderChain::GetAWSCredentials()
+{
+    for (auto&& credentialsProvider : m_providerChain)
+    {
+        AWSCredentials credentials = credentialsProvider->GetAWSCredentials();
+        if (!credentials.GetAWSAccessKeyId().empty() && !credentials.GetAWSSecretKey().empty())
+        {
+            return credentials;
+        }
+    }
+
+    return AWSCredentials();
+}
+
+DefaultAWSCredentialsProviderChain::DefaultAWSCredentialsProviderChain() : AWSCredentialsProviderChain()
+{
+    AddProvider(Aws::MakeShared<EnvironmentAWSCredentialsProvider>(DefaultCredentialsProviderChainTag));
+    AddProvider(Aws::MakeShared<ProfileConfigFileAWSCredentialsProvider>(DefaultCredentialsProviderChainTag));
+    AddProvider(Aws::MakeShared<ProcessCredentialsProvider>(DefaultCredentialsProviderChainTag));
+    AddProvider(Aws::MakeShared<STSAssumeRoleWebIdentityCredentialsProvider>(DefaultCredentialsProviderChainTag));
+    
+    //ECS TaskRole Credentials only available when ENVIRONMENT VARIABLE is set
+    const auto relativeUri = Aws::Environment::GetEnv(AWS_ECS_CONTAINER_CREDENTIALS_RELATIVE_URI);
+    AWS_LOGSTREAM_DEBUG(DefaultCredentialsProviderChainTag, "The environment variable value " << AWS_ECS_CONTAINER_CREDENTIALS_RELATIVE_URI
+            << " is " << relativeUri);
+
+    const auto absoluteUri = Aws::Environment::GetEnv(AWS_ECS_CONTAINER_CREDENTIALS_FULL_URI);
+    AWS_LOGSTREAM_DEBUG(DefaultCredentialsProviderChainTag, "The environment variable value " << AWS_ECS_CONTAINER_CREDENTIALS_FULL_URI
+            << " is " << absoluteUri);
+
+    const auto ec2MetadataDisabled = Aws::Environment::GetEnv(AWS_EC2_METADATA_DISABLED);
+    AWS_LOGSTREAM_DEBUG(DefaultCredentialsProviderChainTag, "The environment variable value " << AWS_EC2_METADATA_DISABLED
+            << " is " << ec2MetadataDisabled);
+
+    if (!relativeUri.empty())
+    {
+        AddProvider(Aws::MakeShared<TaskRoleCredentialsProvider>(DefaultCredentialsProviderChainTag, relativeUri.c_str()));
+        AWS_LOGSTREAM_INFO(DefaultCredentialsProviderChainTag, "Added ECS metadata service credentials provider with relative path: ["
+                << relativeUri << "] to the provider chain.");
+    }
+    else if (!absoluteUri.empty())
+    {
+        const auto token = Aws::Environment::GetEnv(AWS_ECS_CONTAINER_AUTHORIZATION_TOKEN);
+        AddProvider(Aws::MakeShared<TaskRoleCredentialsProvider>(DefaultCredentialsProviderChainTag,
+                    absoluteUri.c_str(), token.c_str()));
+
+        //DO NOT log the value of the authorization token for security purposes.
+        AWS_LOGSTREAM_INFO(DefaultCredentialsProviderChainTag, "Added ECS credentials provider with URI: ["
+                << absoluteUri << "] to the provider chain with a" << (token.empty() ? "n empty " : " non-empty ")
+                << "authorization token.");
+    }
+    else if (Aws::Utils::StringUtils::ToLower(ec2MetadataDisabled.c_str()) != "true")
+    {
+        AddProvider(Aws::MakeShared<InstanceProfileCredentialsProvider>(DefaultCredentialsProviderChainTag));
+        AWS_LOGSTREAM_INFO(DefaultCredentialsProviderChainTag, "Added EC2 metadata service credentials provider to the provider chain.");
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/STSCredentialsProvider.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/STSCredentialsProvider.cpp
new file mode 100644
index 0000000000..3f48c9e0c7
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/auth/STSCredentialsProvider.cpp
@@ -0,0 +1,163 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/auth/STSCredentialsProvider.h>
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/platform/FileSystem.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/FileSystemUtils.h>
+#include <aws/core/client/SpecifiedRetryableErrorsRetryStrategy.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/UUID.h>
+#include <cstdlib>
+#include <fstream>
+#include <string.h>
+#include <climits>
+
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+using namespace Aws::Auth;
+using namespace Aws::Internal;
+using namespace Aws::FileSystem;
+using namespace Aws::Client;
+using Aws::Utils::Threading::ReaderLockGuard;
+using Aws::Utils::Threading::WriterLockGuard;
+
+static const char STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG[] = "STSAssumeRoleWithWebIdentityCredentialsProvider";
+STSAssumeRoleWebIdentityCredentialsProvider::STSAssumeRoleWebIdentityCredentialsProvider() :
+    m_initialized(false)
+{
+    // check environment variables
+    Aws::String tmpRegion = Aws::Environment::GetEnv("AWS_DEFAULT_REGION");
+    m_roleArn = Aws::Environment::GetEnv("AWS_ROLE_ARN");
+    m_tokenFile = Aws::Environment::GetEnv("AWS_WEB_IDENTITY_TOKEN_FILE");
+    m_sessionName = Aws::Environment::GetEnv("AWS_ROLE_SESSION_NAME");
+
+    // check profile_config if either m_roleArn or m_tokenFile is not loaded from environment variable
+    // region source is not enforced, but we need it to construct sts endpoint, if we can't find from environment, we should check if it's set in config file.
+    if (m_roleArn.empty() || m_tokenFile.empty() || tmpRegion.empty())
+    {
+        auto profile = Aws::Config::GetCachedConfigProfile(Aws::Auth::GetConfigProfileName());
+        if (tmpRegion.empty())
+        {
+            tmpRegion = profile.GetRegion();
+        }
+        // If either of these two were not found from environment, use whatever found for all three in config file
+        if (m_roleArn.empty() || m_tokenFile.empty())
+        {
+            m_roleArn = profile.GetRoleArn();
+            m_tokenFile = profile.GetValue("web_identity_token_file");
+            m_sessionName = profile.GetValue("role_session_name");
+        }
+    }
+
+    if (m_tokenFile.empty())
+    {
+        AWS_LOGSTREAM_WARN(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Token file must be specified to use STS AssumeRole web identity creds provider.");
+        return; // No need to do further constructing
+    }
+    else
+    {
+        AWS_LOGSTREAM_DEBUG(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Resolved token_file from profile_config or environment variable to be " << m_tokenFile);
+    }
+
+    if (m_roleArn.empty())
+    {
+        AWS_LOGSTREAM_WARN(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "RoleArn must be specified to use STS AssumeRole web identity creds provider.");
+        return; // No need to do further constructing
+    }
+    else
+    {
+        AWS_LOGSTREAM_DEBUG(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Resolved role_arn from profile_config or environment variable to be " << m_roleArn);
+    }
+
+    if (tmpRegion.empty())
+    {
+        tmpRegion = Aws::Region::US_EAST_1;
+    }
+    else
+    {
+        AWS_LOGSTREAM_DEBUG(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Resolved region from profile_config or environment variable to be " << tmpRegion);
+    }
+
+    if (m_sessionName.empty())
+    {
+        m_sessionName = Aws::Utils::UUID::RandomUUID();
+    }
+    else
+    {
+        AWS_LOGSTREAM_DEBUG(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Resolved session_name from profile_config or environment variable to be " << m_sessionName);
+    }
+
+    Aws::Client::ClientConfiguration config;
+    config.scheme = Aws::Http::Scheme::HTTPS;
+    config.region = tmpRegion;
+
+    Aws::Vector<Aws::String> retryableErrors;
+    retryableErrors.push_back("IDPCommunicationError");
+    retryableErrors.push_back("InvalidIdentityToken");
+
+    config.retryStrategy = Aws::MakeShared<SpecifiedRetryableErrorsRetryStrategy>(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, retryableErrors, 3/*maxRetries*/);
+
+    m_client = Aws::MakeUnique<Aws::Internal::STSCredentialsClient>(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, config);
+    m_initialized = true;
+    AWS_LOGSTREAM_INFO(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Creating STS AssumeRole with web identity creds provider.");
+}
+
+AWSCredentials STSAssumeRoleWebIdentityCredentialsProvider::GetAWSCredentials()
+{
+    // A valid client means required information like role arn and token file were constructed correctly.
+    // We can use this provider to load creds, otherwise, we can just return empty creds.
+    if (!m_initialized)
+    {
+        return Aws::Auth::AWSCredentials();
+    }
+    RefreshIfExpired();
+    ReaderLockGuard guard(m_reloadLock);
+    return m_credentials;
+}
+
+void STSAssumeRoleWebIdentityCredentialsProvider::Reload()
+{
+    AWS_LOGSTREAM_INFO(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Credentials have expired, attempting to renew from STS.");
+
+    Aws::IFStream tokenFile(m_tokenFile.c_str());
+    if(tokenFile)
+    {
+        Aws::String token((std::istreambuf_iterator<char>(tokenFile)), std::istreambuf_iterator<char>());
+        m_token = token;
+    }
+    else
+    {
+        AWS_LOGSTREAM_ERROR(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Can't open token file: " << m_tokenFile);
+        return;
+    }
+    STSCredentialsClient::STSAssumeRoleWithWebIdentityRequest request {m_sessionName, m_roleArn, m_token};
+
+    auto result = m_client->GetAssumeRoleWithWebIdentityCredentials(request);
+    AWS_LOGSTREAM_TRACE(STS_ASSUME_ROLE_WEB_IDENTITY_LOG_TAG, "Successfully retrieved credentials with AWS_ACCESS_KEY: " << result.creds.GetAWSAccessKeyId());
+    m_credentials = result.creds;
+}
+
+void STSAssumeRoleWebIdentityCredentialsProvider::RefreshIfExpired()
+{
+    ReaderLockGuard guard(m_reloadLock);
+    if (!m_credentials.IsExpiredOrEmpty())
+    {
+       return;
+    }
+
+    guard.UpgradeToWriterLock();
+    if (!m_credentials.IsExpiredOrEmpty()) // double-checked lock to avoid refreshing twice
+    {
+        return;
+    }
+
+    Reload();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSClient.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSClient.cpp
new file mode 100644
index 0000000000..e1ff064840
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSClient.cpp
@@ -0,0 +1,1098 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/AWSClient.h>
+#include <aws/core/AmazonWebServiceRequest.h>
+#include <aws/core/auth/AWSAuthSigner.h>
+#include <aws/core/auth/AWSAuthSignerProvider.h>
+#include <aws/core/client/AWSError.h>
+#include <aws/core/client/AWSErrorMarshaller.h>
+#include <aws/core/client/ClientConfiguration.h>
+#include <aws/core/client/CoreErrors.h>
+#include <aws/core/client/RetryStrategy.h>
+#include <aws/core/http/HttpClient.h>
+#include <aws/core/http/HttpClientFactory.h>
+#include <aws/core/http/HttpResponse.h>
+#include <aws/core/http/standard/StandardHttpResponse.h>
+#include <aws/core/http/URI.h>
+#include <aws/core/utils/stream/ResponseStream.h>
+#include <aws/core/utils/json/JsonSerializer.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/xml/XmlSerializer.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/Globals.h>
+#include <aws/core/utils/EnumParseOverflowContainer.h>
+#include <aws/core/utils/crypto/MD5.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/crypto/Factories.h>
+#include <aws/core/utils/event/EventStream.h>
+#include <aws/core/utils/UUID.h>
+#include <aws/core/monitoring/MonitoringManager.h>
+#include <aws/core/Region.h>
+#include <aws/core/utils/DNS.h>
+#include <aws/core/Version.h>
+#include <aws/core/platform/OSVersionInfo.h>
+
+#include <cstring>
+#include <cassert>
+
+using namespace Aws;
+using namespace Aws::Client;
+using namespace Aws::Http;
+using namespace Aws::Utils;
+using namespace Aws::Utils::Json;
+using namespace Aws::Utils::Xml;
+
+static const int SUCCESS_RESPONSE_MIN = 200;
+static const int SUCCESS_RESPONSE_MAX = 299;
+
+static const char AWS_CLIENT_LOG_TAG[] = "AWSClient";
+//4 Minutes
+static const std::chrono::milliseconds TIME_DIFF_MAX = std::chrono::minutes(4);
+//-4 Minutes
+static const std::chrono::milliseconds TIME_DIFF_MIN = std::chrono::minutes(-4);
+
+static CoreErrors GuessBodylessErrorType(Aws::Http::HttpResponseCode responseCode)
+{
+    switch (responseCode)
+    {
+    case HttpResponseCode::FORBIDDEN:
+    case HttpResponseCode::UNAUTHORIZED:
+        return CoreErrors::ACCESS_DENIED;
+    case HttpResponseCode::NOT_FOUND:
+        return CoreErrors::RESOURCE_NOT_FOUND;
+    default:
+        return CoreErrors::UNKNOWN;
+    }
+}
+
+struct RequestInfo
+{
+    Aws::Utils::DateTime ttl;
+    long attempt;
+    long maxAttempts;
+
+    operator String()
+    {
+        Aws::StringStream ss;
+        if (ttl.WasParseSuccessful() && ttl != DateTime())
+        {
+            assert(attempt > 1);
+            ss << "ttl=" << ttl.ToGmtString(DateFormat::ISO_8601_BASIC) << "; ";
+        }
+        ss << "attempt=" << attempt;
+        if (maxAttempts > 0)
+        {
+            ss << "; max=" << maxAttempts;
+        }
+        return ss.str();
+    }
+};
+
+AWSClient::AWSClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Client::AWSAuthSigner>& signer,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    m_region(configuration.region),
+    m_httpClient(CreateHttpClient(configuration)),
+    m_signerProvider(Aws::MakeUnique<Aws::Auth::DefaultAuthSignerProvider>(AWS_CLIENT_LOG_TAG, signer)),
+    m_errorMarshaller(errorMarshaller),
+    m_retryStrategy(configuration.retryStrategy),
+    m_writeRateLimiter(configuration.writeRateLimiter),
+    m_readRateLimiter(configuration.readRateLimiter),
+    m_userAgent(configuration.userAgent),
+    m_customizedUserAgent(!m_userAgent.empty()),
+    m_hash(Aws::Utils::Crypto::CreateMD5Implementation()),
+    m_requestTimeoutMs(configuration.requestTimeoutMs),
+    m_enableClockSkewAdjustment(configuration.enableClockSkewAdjustment)
+{
+    SetServiceClientName("AWSBaseClient");
+}
+
+AWSClient::AWSClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Auth::AWSAuthSignerProvider>& signerProvider,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    m_region(configuration.region),
+    m_httpClient(CreateHttpClient(configuration)),
+    m_signerProvider(signerProvider),
+    m_errorMarshaller(errorMarshaller),
+    m_retryStrategy(configuration.retryStrategy),
+    m_writeRateLimiter(configuration.writeRateLimiter),
+    m_readRateLimiter(configuration.readRateLimiter),
+    m_userAgent(configuration.userAgent),
+    m_customizedUserAgent(!m_userAgent.empty()),
+    m_hash(Aws::Utils::Crypto::CreateMD5Implementation()),
+    m_requestTimeoutMs(configuration.requestTimeoutMs),
+    m_enableClockSkewAdjustment(configuration.enableClockSkewAdjustment)
+{
+    SetServiceClientName("AWSBaseClient");
+}
+
+void AWSClient::SetServiceClientName(const Aws::String& name)
+{
+    m_serviceName = name;
+    if (!m_customizedUserAgent)
+    {
+        Aws::StringStream ss;
+        ss << "aws-sdk-cpp/" << Version::GetVersionString() << "/" << m_serviceName << "/" <<  Aws::OSVersionInfo::ComputeOSVersionString()
+            << " " << Version::GetCompilerVersionString();
+        m_userAgent = ss.str();
+    }
+}
+
+void AWSClient::DisableRequestProcessing()
+{
+    m_httpClient->DisableRequestProcessing();
+}
+
+void AWSClient::EnableRequestProcessing()
+{
+    m_httpClient->EnableRequestProcessing();
+}
+
+Aws::Client::AWSAuthSigner* AWSClient::GetSignerByName(const char* name) const
+{
+    const auto& signer =  m_signerProvider->GetSigner(name);
+    return signer ? signer.get() : nullptr;
+}
+
+static DateTime GetServerTimeFromError(const AWSError<CoreErrors> error)
+{
+    const Http::HeaderValueCollection& headers = error.GetResponseHeaders();
+    auto awsDateHeaderIter = headers.find(StringUtils::ToLower(Http::AWS_DATE_HEADER));
+    auto dateHeaderIter = headers.find(StringUtils::ToLower(Http::DATE_HEADER));
+    if (awsDateHeaderIter != headers.end())
+    {
+        return DateTime(awsDateHeaderIter->second.c_str(), DateFormat::AutoDetect);
+    }
+    else if (dateHeaderIter != headers.end())
+    {
+        return DateTime(dateHeaderIter->second.c_str(), DateFormat::AutoDetect);
+    }
+    else
+    {
+        return DateTime();
+    }
+}
+
+bool AWSClient::AdjustClockSkew(HttpResponseOutcome& outcome, const char* signerName) const
+{
+    if (m_enableClockSkewAdjustment)
+    {
+        auto signer = GetSignerByName(signerName);
+        //detect clock skew and try to correct.
+        AWS_LOGSTREAM_WARN(AWS_CLIENT_LOG_TAG, "If the signature check failed. This could be because of a time skew. Attempting to adjust the signer.");
+
+        DateTime serverTime = GetServerTimeFromError(outcome.GetError());
+        const auto signingTimestamp = signer->GetSigningTimestamp();
+        if (!serverTime.WasParseSuccessful() || serverTime == DateTime())
+        {
+            AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Date header was not found in the response, can't attempt to detect clock skew");
+            return false;
+        }
+
+        AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Server time is " << serverTime.ToGmtString(DateFormat::RFC822) << ", while client time is " << DateTime::Now().ToGmtString(DateFormat::RFC822));
+        auto diff = DateTime::Diff(serverTime, signingTimestamp);
+        //only try again if clock skew was the cause of the error.
+        if (diff >= TIME_DIFF_MAX || diff <= TIME_DIFF_MIN)
+        {
+            diff = DateTime::Diff(serverTime, DateTime::Now());
+            AWS_LOGSTREAM_INFO(AWS_CLIENT_LOG_TAG, "Computed time difference as " << diff.count() << " milliseconds. Adjusting signer with the skew.");
+            signer->SetClockSkew(diff);
+            AWSError<CoreErrors> newError(
+                outcome.GetError().GetErrorType(), outcome.GetError().GetExceptionName(), outcome.GetError().GetMessage(), true);
+            newError.SetResponseHeaders(outcome.GetError().GetResponseHeaders());
+            newError.SetResponseCode(outcome.GetError().GetResponseCode());
+            outcome = std::move(newError);
+            return true;
+        }
+    }
+    return false;
+}
+
+HttpResponseOutcome AWSClient::AttemptExhaustively(const Aws::Http::URI& uri,
+    const Aws::AmazonWebServiceRequest& request,
+    HttpMethod method,
+    const char* signerName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    if (!Aws::Utils::IsValidHost(uri.GetAuthority()))
+    {
+        return HttpResponseOutcome(AWSError<CoreErrors>(CoreErrors::VALIDATION, "", "Invalid DNS Label found in URI host", false/*retryable*/));
+    }
+    std::shared_ptr<HttpRequest> httpRequest(CreateHttpRequest(uri, method, request.GetResponseStreamFactory()));
+    HttpResponseOutcome outcome;
+    AWSError<CoreErrors> lastError;
+    Aws::Monitoring::CoreMetricsCollection coreMetrics;
+    auto contexts = Aws::Monitoring::OnRequestStarted(this->GetServiceClientName(), request.GetServiceRequestName(), httpRequest);
+    const char* signerRegion = signerRegionOverride;
+    Aws::String regionFromResponse;
+
+    Aws::String invocationId = UUID::RandomUUID();
+    RequestInfo requestInfo;
+    requestInfo.attempt = 1;
+    requestInfo.maxAttempts = 0;
+    httpRequest->SetHeaderValue(Http::SDK_INVOCATION_ID_HEADER, invocationId);
+    httpRequest->SetHeaderValue(Http::SDK_REQUEST_HEADER, requestInfo);
+
+    for (long retries = 0;; retries++)
+    {
+        m_retryStrategy->GetSendToken();
+        httpRequest->SetEventStreamRequest(request.IsEventStreamRequest());
+
+        outcome = AttemptOneRequest(httpRequest, request, signerName, signerRegion, signerServiceNameOverride);
+        if (retries == 0)
+        {
+            m_retryStrategy->RequestBookkeeping(outcome);
+        }
+        else
+        {
+            m_retryStrategy->RequestBookkeeping(outcome, lastError);
+        }
+        coreMetrics.httpClientMetrics = httpRequest->GetRequestMetrics();
+        if (outcome.IsSuccess())
+        {
+            Aws::Monitoring::OnRequestSucceeded(this->GetServiceClientName(), request.GetServiceRequestName(), httpRequest, outcome, coreMetrics, contexts);
+            AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Request successful returning.");
+            break;
+        }
+        lastError = outcome.GetError();
+
+        DateTime serverTime = GetServerTimeFromError(outcome.GetError());
+        auto clockSkew = DateTime::Diff(serverTime, DateTime::Now());
+
+        Aws::Monitoring::OnRequestFailed(this->GetServiceClientName(), request.GetServiceRequestName(), httpRequest, outcome, coreMetrics, contexts);
+
+        if (!m_httpClient->IsRequestProcessingEnabled())
+        {
+            AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Request was cancelled externally.");
+            break;
+        }
+
+        // Adjust region
+        bool retryWithCorrectRegion = false;
+        HttpResponseCode httpResponseCode = outcome.GetError().GetResponseCode();
+        if (httpResponseCode == HttpResponseCode::MOVED_PERMANENTLY ||  // 301
+            httpResponseCode == HttpResponseCode::TEMPORARY_REDIRECT || // 307
+            httpResponseCode == HttpResponseCode::BAD_REQUEST ||        // 400
+            httpResponseCode == HttpResponseCode::FORBIDDEN)            // 403
+        {
+            regionFromResponse = GetErrorMarshaller()->ExtractRegion(outcome.GetError());
+            if (m_region == Aws::Region::AWS_GLOBAL && !regionFromResponse.empty() && regionFromResponse != signerRegion)
+            {
+                signerRegion = regionFromResponse.c_str();
+                retryWithCorrectRegion = true;
+            }
+        }
+
+        long sleepMillis = m_retryStrategy->CalculateDelayBeforeNextRetry(outcome.GetError(), retries);
+        //AdjustClockSkew returns true means clock skew was the problem and skew was adjusted, false otherwise.
+        //sleep if clock skew and region was NOT the problem. AdjustClockSkew may update error inside outcome.
+        bool shouldSleep = !AdjustClockSkew(outcome, signerName) && !retryWithCorrectRegion;
+
+        if (!retryWithCorrectRegion && !m_retryStrategy->ShouldRetry(outcome.GetError(), retries))
+        {
+            break;
+        }
+
+        AWS_LOGSTREAM_WARN(AWS_CLIENT_LOG_TAG, "Request failed, now waiting " << sleepMillis << " ms before attempting again.");
+        if(request.GetBody())
+        {
+            request.GetBody()->clear();
+            request.GetBody()->seekg(0);
+        }
+
+        if (request.GetRequestRetryHandler())
+        {
+            request.GetRequestRetryHandler()(request);
+        }
+
+        if (shouldSleep)
+        {
+            m_httpClient->RetryRequestSleep(std::chrono::milliseconds(sleepMillis));
+        }
+
+        Aws::Http::URI newUri = uri;
+        Aws::String newEndpoint = GetErrorMarshaller()->ExtractEndpoint(outcome.GetError());
+        if (!newEndpoint.empty())
+        {
+            newUri.SetAuthority(newEndpoint);
+        }
+        httpRequest = CreateHttpRequest(newUri, method, request.GetResponseStreamFactory());
+
+        httpRequest->SetHeaderValue(Http::SDK_INVOCATION_ID_HEADER, invocationId);
+        if (serverTime.WasParseSuccessful() && serverTime != DateTime())
+        {
+            requestInfo.ttl = DateTime::Now() + clockSkew + std::chrono::milliseconds(m_requestTimeoutMs);
+        }
+        requestInfo.attempt ++;
+        requestInfo.maxAttempts = m_retryStrategy->GetMaxAttempts();
+        httpRequest->SetHeaderValue(Http::SDK_REQUEST_HEADER, requestInfo);
+        Aws::Monitoring::OnRequestRetry(this->GetServiceClientName(), request.GetServiceRequestName(), httpRequest, contexts);
+    }
+    Aws::Monitoring::OnFinish(this->GetServiceClientName(), request.GetServiceRequestName(), httpRequest, contexts);
+    return outcome;
+}
+
+HttpResponseOutcome AWSClient::AttemptExhaustively(const Aws::Http::URI& uri,
+    HttpMethod method,
+    const char* signerName,
+    const char* requestName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    if (!Aws::Utils::IsValidHost(uri.GetAuthority()))
+    {
+        return HttpResponseOutcome(AWSError<CoreErrors>(CoreErrors::VALIDATION, "", "Invalid DNS Label found in URI host", false/*retryable*/));
+    }
+
+    std::shared_ptr<HttpRequest> httpRequest(CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+    HttpResponseOutcome outcome;
+    AWSError<CoreErrors> lastError;
+    Aws::Monitoring::CoreMetricsCollection coreMetrics;
+    auto contexts = Aws::Monitoring::OnRequestStarted(this->GetServiceClientName(), requestName, httpRequest);
+    const char* signerRegion = signerRegionOverride;
+    Aws::String regionFromResponse;
+
+    Aws::String invocationId = UUID::RandomUUID();
+    RequestInfo requestInfo;
+    requestInfo.attempt = 1;
+    requestInfo.maxAttempts = 0;
+    httpRequest->SetHeaderValue(Http::SDK_INVOCATION_ID_HEADER, invocationId);
+    httpRequest->SetHeaderValue(Http::SDK_REQUEST_HEADER, requestInfo);
+
+    for (long retries = 0;; retries++)
+    {
+        m_retryStrategy->GetSendToken();
+        outcome = AttemptOneRequest(httpRequest, signerName, requestName, signerRegion, signerServiceNameOverride);
+        if (retries == 0)
+        {
+            m_retryStrategy->RequestBookkeeping(outcome);
+        }
+        else
+        {
+            m_retryStrategy->RequestBookkeeping(outcome, lastError);
+        }
+        coreMetrics.httpClientMetrics = httpRequest->GetRequestMetrics();
+        if (outcome.IsSuccess())
+        {
+            Aws::Monitoring::OnRequestSucceeded(this->GetServiceClientName(), requestName, httpRequest, outcome, coreMetrics, contexts);
+            AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Request successful returning.");
+            break;
+        }
+        lastError = outcome.GetError();
+
+        DateTime serverTime = GetServerTimeFromError(outcome.GetError());
+        auto clockSkew = DateTime::Diff(serverTime, DateTime::Now());
+
+        Aws::Monitoring::OnRequestFailed(this->GetServiceClientName(), requestName, httpRequest, outcome, coreMetrics, contexts);
+
+        if (!m_httpClient->IsRequestProcessingEnabled())
+        {
+            AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Request was cancelled externally.");
+            break;
+        }
+
+        // Adjust region
+        bool retryWithCorrectRegion = false;
+        HttpResponseCode httpResponseCode = outcome.GetError().GetResponseCode();
+        if (httpResponseCode == HttpResponseCode::MOVED_PERMANENTLY ||  // 301
+            httpResponseCode == HttpResponseCode::TEMPORARY_REDIRECT || // 307
+            httpResponseCode == HttpResponseCode::BAD_REQUEST ||        // 400
+            httpResponseCode == HttpResponseCode::FORBIDDEN)            // 403
+        {
+            regionFromResponse = GetErrorMarshaller()->ExtractRegion(outcome.GetError());
+            if (m_region == Aws::Region::AWS_GLOBAL && !regionFromResponse.empty() && regionFromResponse != signerRegion)
+            {
+                signerRegion = regionFromResponse.c_str();
+                retryWithCorrectRegion = true;
+            }
+        }
+
+        long sleepMillis = m_retryStrategy->CalculateDelayBeforeNextRetry(outcome.GetError(), retries);
+        //AdjustClockSkew returns true means clock skew was the problem and skew was adjusted, false otherwise.
+        //sleep if clock skew and region was NOT the problem. AdjustClockSkew may update error inside outcome.
+        bool shouldSleep = !AdjustClockSkew(outcome, signerName) && !retryWithCorrectRegion;
+
+        if (!retryWithCorrectRegion && !m_retryStrategy->ShouldRetry(outcome.GetError(), retries))
+        {
+            break;
+        }
+
+        AWS_LOGSTREAM_WARN(AWS_CLIENT_LOG_TAG, "Request failed, now waiting " << sleepMillis << " ms before attempting again.");
+
+        if (shouldSleep)
+        {
+            m_httpClient->RetryRequestSleep(std::chrono::milliseconds(sleepMillis));
+        }
+
+        Aws::Http::URI newUri = uri;
+        Aws::String newEndpoint = GetErrorMarshaller()->ExtractEndpoint(outcome.GetError());
+        if (!newEndpoint.empty())
+        {
+            newUri.SetAuthority(newEndpoint);
+        }
+        httpRequest = CreateHttpRequest(newUri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+
+        httpRequest->SetHeaderValue(Http::SDK_INVOCATION_ID_HEADER, invocationId);
+        if (serverTime.WasParseSuccessful() && serverTime != DateTime())
+        {
+            requestInfo.ttl = DateTime::Now() + clockSkew + std::chrono::milliseconds(m_requestTimeoutMs);
+        }
+        requestInfo.attempt ++;
+        requestInfo.maxAttempts = m_retryStrategy->GetMaxAttempts();
+        httpRequest->SetHeaderValue(Http::SDK_REQUEST_HEADER, requestInfo);
+        Aws::Monitoring::OnRequestRetry(this->GetServiceClientName(), requestName, httpRequest, contexts);
+    }
+    Aws::Monitoring::OnFinish(this->GetServiceClientName(), requestName, httpRequest, contexts);
+    return outcome;
+}
+
+static bool DoesResponseGenerateError(const std::shared_ptr<HttpResponse>& response)
+{
+    if (response->HasClientError()) return true;
+
+    int responseCode = static_cast<int>(response->GetResponseCode());
+    return responseCode < SUCCESS_RESPONSE_MIN || responseCode > SUCCESS_RESPONSE_MAX;
+
+}
+
+HttpResponseOutcome AWSClient::AttemptOneRequest(const std::shared_ptr<HttpRequest>& httpRequest, const Aws::AmazonWebServiceRequest& request,
+    const char* signerName, const char* signerRegionOverride, const char* signerServiceNameOverride) const
+{
+    BuildHttpRequest(request, httpRequest);
+    auto signer = GetSignerByName(signerName);
+    if (!signer->SignRequest(*httpRequest, signerRegionOverride, signerServiceNameOverride, request.SignBody()))
+    {
+        AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, "Request signing failed. Returning error.");
+        return HttpResponseOutcome(AWSError<CoreErrors>(CoreErrors::CLIENT_SIGNING_FAILURE, "", "SDK failed to sign the request", false/*retryable*/));
+    }
+
+    if (request.GetRequestSignedHandler())
+    {
+        request.GetRequestSignedHandler()(*httpRequest);
+    }
+
+    AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request Successfully signed");
+    std::shared_ptr<HttpResponse> httpResponse(
+        m_httpClient->MakeRequest(httpRequest, m_readRateLimiter.get(), m_writeRateLimiter.get()));
+
+    if (DoesResponseGenerateError(httpResponse))
+    {
+        AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned error. Attempting to generate appropriate error codes from response");
+        auto error = BuildAWSError(httpResponse);
+        return HttpResponseOutcome(std::move(error));
+    }
+
+    AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned successful response.");
+
+    return HttpResponseOutcome(std::move(httpResponse));
+}
+
+HttpResponseOutcome AWSClient::AttemptOneRequest(const std::shared_ptr<HttpRequest>& httpRequest,
+    const char* signerName, const char* requestName, const char* signerRegionOverride, const char* signerServiceNameOverride) const
+{
+    AWS_UNREFERENCED_PARAM(requestName);
+
+    auto signer = GetSignerByName(signerName);
+    if (!signer->SignRequest(*httpRequest, signerRegionOverride, signerServiceNameOverride, true))
+    {
+        AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, "Request signing failed. Returning error.");
+        return HttpResponseOutcome(AWSError<CoreErrors>(CoreErrors::CLIENT_SIGNING_FAILURE, "", "SDK failed to sign the request", false/*retryable*/));
+    }
+
+    //user agent and headers like that shouldn't be signed for the sake of compatibility with proxies which MAY mutate that header.
+    AddCommonHeaders(*httpRequest);
+
+    AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request Successfully signed");
+    std::shared_ptr<HttpResponse> httpResponse(
+        m_httpClient->MakeRequest(httpRequest, m_readRateLimiter.get(), m_writeRateLimiter.get()));
+
+    if (DoesResponseGenerateError(httpResponse))
+    {
+        AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned error. Attempting to generate appropriate error codes from response");
+        auto error = BuildAWSError(httpResponse);
+        return HttpResponseOutcome(std::move(error));
+    }
+
+    AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned successful response.");
+
+    return HttpResponseOutcome(std::move(httpResponse));
+}
+
+StreamOutcome AWSClient::MakeRequestWithUnparsedResponse(const Aws::Http::URI& uri,
+    const Aws::AmazonWebServiceRequest& request,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpResponseOutcome = AttemptExhaustively(uri, request, method, signerName, signerRegionOverride, signerServiceNameOverride);
+    if (httpResponseOutcome.IsSuccess())
+    {
+        return StreamOutcome(AmazonWebServiceResult<Stream::ResponseStream>(
+            httpResponseOutcome.GetResult()->SwapResponseStreamOwnership(),
+            httpResponseOutcome.GetResult()->GetHeaders(), httpResponseOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return StreamOutcome(std::move(httpResponseOutcome));
+}
+
+StreamOutcome AWSClient::MakeRequestWithUnparsedResponse(const Aws::Http::URI& uri,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* requestName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpResponseOutcome = AttemptExhaustively(uri, method, signerName, requestName, signerRegionOverride, signerServiceNameOverride);
+    if (httpResponseOutcome.IsSuccess())
+    {
+        return StreamOutcome(AmazonWebServiceResult<Stream::ResponseStream>(
+            httpResponseOutcome.GetResult()->SwapResponseStreamOwnership(),
+            httpResponseOutcome.GetResult()->GetHeaders(), httpResponseOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return StreamOutcome(std::move(httpResponseOutcome));
+}
+
+XmlOutcome AWSXMLClient::MakeRequestWithEventStream(const Aws::Http::URI& uri,
+    const Aws::AmazonWebServiceRequest& request,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome = AttemptExhaustively(uri, request, method, signerName, signerRegionOverride, signerServiceNameOverride);
+    if (httpOutcome.IsSuccess())
+    {
+        return XmlOutcome(AmazonWebServiceResult<XmlDocument>(XmlDocument(), httpOutcome.GetResult()->GetHeaders()));
+    }
+
+    return XmlOutcome(std::move(httpOutcome));
+}
+
+XmlOutcome AWSXMLClient::MakeRequestWithEventStream(const Aws::Http::URI& uri,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* requestName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome = AttemptExhaustively(uri, method, signerName, requestName, signerRegionOverride, signerServiceNameOverride);
+    if (httpOutcome.IsSuccess())
+    {
+        return XmlOutcome(AmazonWebServiceResult<XmlDocument>(XmlDocument(), httpOutcome.GetResult()->GetHeaders()));
+    }
+
+    return XmlOutcome(std::move(httpOutcome));
+}
+
+void AWSClient::AddHeadersToRequest(const std::shared_ptr<Aws::Http::HttpRequest>& httpRequest,
+    const Http::HeaderValueCollection& headerValues) const
+{
+    for (auto const& headerValue : headerValues)
+    {
+        httpRequest->SetHeaderValue(headerValue.first, headerValue.second);
+    }
+
+    AddCommonHeaders(*httpRequest);
+}
+
+void AWSClient::AddContentBodyToRequest(const std::shared_ptr<Aws::Http::HttpRequest>& httpRequest,
+    const std::shared_ptr<Aws::IOStream>& body, bool needsContentMd5, bool isChunked) const
+{
+    httpRequest->AddContentBody(body);
+
+    //If there is no body, we have a content length of 0
+    //note: we also used to remove content-type, but S3 actually needs content-type on InitiateMultipartUpload and it isn't
+    //forbiden by the spec. If we start getting weird errors related to this, make sure it isn't caused by this removal.
+    if (!body)
+    {
+        AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "No content body, content-length headers");
+
+        if(httpRequest->GetMethod() == HttpMethod::HTTP_POST || httpRequest->GetMethod() == HttpMethod::HTTP_PUT)
+        {
+            httpRequest->SetHeaderValue(Http::CONTENT_LENGTH_HEADER, "0");
+        }
+        else
+        {
+            httpRequest->DeleteHeader(Http::CONTENT_LENGTH_HEADER);
+        }
+    }
+
+    //Add transfer-encoding:chunked to header
+    if (body && isChunked)
+    {
+        httpRequest->SetTransferEncoding(CHUNKED_VALUE);
+    }
+    //in the scenario where we are adding a content body as a stream, the request object likely already
+    //has a content-length header set and we don't want to seek the stream just to find this information.
+    else if (body && !httpRequest->HasHeader(Http::CONTENT_LENGTH_HEADER))
+    {
+        if (!m_httpClient->SupportsChunkedTransferEncoding())
+        {
+            AWS_LOGSTREAM_WARN(AWS_CLIENT_LOG_TAG, "This http client doesn't support transfer-encoding:chunked. " <<
+                                                   "The request may fail if it's not a seekable stream.");
+        }
+        AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Found body, but content-length has not been set, attempting to compute content-length");
+        body->seekg(0, body->end);
+        auto streamSize = body->tellg();
+        body->seekg(0, body->beg);
+        Aws::StringStream ss;
+        ss << streamSize;
+        httpRequest->SetContentLength(ss.str());
+    }
+
+    if (needsContentMd5 && body && !httpRequest->HasHeader(Http::CONTENT_MD5_HEADER))
+    {
+        AWS_LOGSTREAM_TRACE(AWS_CLIENT_LOG_TAG, "Found body, and content-md5 needs to be set" <<
+            ", attempting to compute content-md5");
+
+        //changing the internal state of the hash computation is not a logical state
+        //change as far as constness goes for this class. Due to the platform specificness
+        //of hash computations, we can't control the fact that computing a hash mutates
+        //state on some platforms such as windows (but that isn't a concern of this class.
+        auto md5HashResult = const_cast<AWSClient*>(this)->m_hash->Calculate(*body);
+        body->clear();
+        if (md5HashResult.IsSuccess())
+        {
+            httpRequest->SetHeaderValue(Http::CONTENT_MD5_HEADER, HashingUtils::Base64Encode(md5HashResult.GetResult()));
+        }
+    }
+}
+
+Aws::String Aws::Client::GetAuthorizationHeader(const Aws::Http::HttpRequest& httpRequest)
+{
+    // Extract the hex-encoded signature from the authorization header rather than recalculating it.
+    assert(httpRequest.HasAwsAuthorization());
+    const auto& authHeader = httpRequest.GetAwsAuthorization();
+    auto signaturePosition = authHeader.rfind(Aws::Auth::SIGNATURE);
+    // The auth header should end with 'Signature=<64 chars>'
+    // Make sure we found the word 'Signature' in the header and make sure it's the last item followed by its 64 hex chars
+    if (signaturePosition == Aws::String::npos || (signaturePosition + strlen(Aws::Auth::SIGNATURE) + 1/*'=' character*/ + 64/*hex chars*/) != authHeader.length())
+    {
+        AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, "Failed to extract signature from authorization header.");
+        return {};
+    }
+    return authHeader.substr(signaturePosition + strlen(Aws::Auth::SIGNATURE) + 1);
+}
+
+void AWSClient::BuildHttpRequest(const Aws::AmazonWebServiceRequest& request,
+    const std::shared_ptr<HttpRequest>& httpRequest) const
+{
+    //do headers first since the request likely will set content-length as it's own header.
+    AddHeadersToRequest(httpRequest, request.GetHeaders());
+
+    if (request.IsEventStreamRequest())
+    {
+        httpRequest->AddContentBody(request.GetBody());
+    }
+    else
+    {
+        AddContentBodyToRequest(httpRequest, request.GetBody(), request.ShouldComputeContentMd5(), request.IsStreaming() && request.IsChunked() && m_httpClient->SupportsChunkedTransferEncoding());
+    }
+
+    // Pass along handlers for processing data sent/received in bytes
+    httpRequest->SetDataReceivedEventHandler(request.GetDataReceivedEventHandler());
+    httpRequest->SetDataSentEventHandler(request.GetDataSentEventHandler());
+    httpRequest->SetContinueRequestHandle(request.GetContinueRequestHandler());
+
+    request.AddQueryStringParameters(httpRequest->GetUri());
+}
+
+void AWSClient::AddCommonHeaders(HttpRequest& httpRequest) const
+{
+    httpRequest.SetUserAgent(m_userAgent);
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(URI& uri, HttpMethod method, long long expirationInSeconds)
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(URI& uri, HttpMethod method, const Aws::Http::HeaderValueCollection& customizedHeaders, long long expirationInSeconds)
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    for (const auto& it: customizedHeaders)
+    {
+        request->SetHeaderValue(it.first.c_str(), it.second);
+    }
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(URI& uri, HttpMethod method, const char* region, long long expirationInSeconds) const
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, region, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(URI& uri, HttpMethod method, const char* region, const Aws::Http::HeaderValueCollection& customizedHeaders, long long expirationInSeconds)
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    for (const auto& it: customizedHeaders)
+    {
+        request->SetHeaderValue(it.first.c_str(), it.second);
+    }
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, region, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(Aws::Http::URI& uri, Aws::Http::HttpMethod method, const char* region, const char* serviceName, long long expirationInSeconds) const
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, region, serviceName, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(Aws::Http::URI& uri, Aws::Http::HttpMethod method, const char* region, const char* serviceName, const Aws::Http::HeaderValueCollection& customizedHeaders, long long expirationInSeconds)
+{
+    std::shared_ptr<HttpRequest> request = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+    for (const auto& it: customizedHeaders)
+    {
+        request->SetHeaderValue(it.first.c_str(), it.second);
+    }
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*request, region, serviceName, expirationInSeconds))
+    {
+        return request->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(const Aws::AmazonWebServiceRequest& request, Aws::Http::URI& uri, Aws::Http::HttpMethod method, const char* region,
+    const Aws::Http::QueryStringParameterCollection& extraParams, long long expirationInSeconds) const
+{
+    std::shared_ptr<HttpRequest> httpRequest =
+        ConvertToRequestForPresigning(request, uri, method, extraParams);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*httpRequest, region, expirationInSeconds))
+    {
+        return httpRequest->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(const Aws::AmazonWebServiceRequest& request, Aws::Http::URI& uri, Aws::Http::HttpMethod method, const char* region, const char* serviceName,
+const Aws::Http::QueryStringParameterCollection& extraParams, long long expirationInSeconds) const
+{
+    std::shared_ptr<HttpRequest> httpRequest =
+        ConvertToRequestForPresigning(request, uri, method, extraParams);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*httpRequest, region, serviceName, expirationInSeconds))
+    {
+        return httpRequest->GetURIString();
+    }
+
+    return {};
+}
+
+Aws::String AWSClient::GeneratePresignedUrl(const Aws::AmazonWebServiceRequest& request, Aws::Http::URI& uri, Aws::Http::HttpMethod method,
+    const Aws::Http::QueryStringParameterCollection& extraParams, long long expirationInSeconds) const
+{
+    std::shared_ptr<HttpRequest> httpRequest =
+        ConvertToRequestForPresigning(request, uri, method, extraParams);
+    auto signer = GetSignerByName(Aws::Auth::SIGV4_SIGNER);
+    if (signer->PresignRequest(*httpRequest, expirationInSeconds))
+    {
+        return httpRequest->GetURIString();
+    }
+
+    return {};
+}
+
+std::shared_ptr<Aws::Http::HttpRequest> AWSClient::ConvertToRequestForPresigning(const Aws::AmazonWebServiceRequest& request, Aws::Http::URI& uri,
+    Aws::Http::HttpMethod method, const Aws::Http::QueryStringParameterCollection& extraParams) const
+{
+    request.PutToPresignedUrl(uri);
+    std::shared_ptr<HttpRequest> httpRequest = CreateHttpRequest(uri, method, Aws::Utils::Stream::DefaultResponseStreamFactoryMethod);
+
+    for (auto& param : extraParams)
+    {
+        httpRequest->AddQueryStringParameter(param.first.c_str(), param.second);
+    }
+
+    return httpRequest;
+}
+
+std::shared_ptr<Aws::Http::HttpResponse> AWSClient::MakeHttpRequest(std::shared_ptr<Aws::Http::HttpRequest>& request) const
+{
+    return m_httpClient->MakeRequest(request, m_readRateLimiter.get(), m_writeRateLimiter.get());
+}
+
+
+////////////////////////////////////////////////////////////////////////////
+AWSJsonClient::AWSJsonClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Client::AWSAuthSigner>& signer,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    BASECLASS(configuration, signer, errorMarshaller)
+{
+}
+
+AWSJsonClient::AWSJsonClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Auth::AWSAuthSignerProvider>& signerProvider,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    BASECLASS(configuration, signerProvider, errorMarshaller)
+{
+}
+
+
+JsonOutcome AWSJsonClient::MakeRequest(const Aws::Http::URI& uri,
+    const Aws::AmazonWebServiceRequest& request,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome(BASECLASS::AttemptExhaustively(uri, request, method, signerName, signerRegionOverride, signerServiceNameOverride));
+    if (!httpOutcome.IsSuccess())
+    {
+        return JsonOutcome(std::move(httpOutcome));
+    }
+
+    if (httpOutcome.GetResult()->GetResponseBody().tellp() > 0)
+        //this is stupid, but gcc doesn't pick up the covariant on the dereference so we have to give it a little hint.
+        return JsonOutcome(AmazonWebServiceResult<JsonValue>(JsonValue(httpOutcome.GetResult()->GetResponseBody()),
+        httpOutcome.GetResult()->GetHeaders(),
+        httpOutcome.GetResult()->GetResponseCode()));
+
+    else
+        return JsonOutcome(AmazonWebServiceResult<JsonValue>(JsonValue(), httpOutcome.GetResult()->GetHeaders()));
+}
+
+JsonOutcome AWSJsonClient::MakeRequest(const Aws::Http::URI& uri,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* requestName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome(BASECLASS::AttemptExhaustively(uri, method, signerName, requestName, signerRegionOverride, signerServiceNameOverride));
+    if (!httpOutcome.IsSuccess())
+    {
+        return JsonOutcome(std::move(httpOutcome));
+    }
+
+    if (httpOutcome.GetResult()->GetResponseBody().tellp() > 0)
+    {
+        JsonValue jsonValue(httpOutcome.GetResult()->GetResponseBody());
+        if (!jsonValue.WasParseSuccessful())
+        {
+            return JsonOutcome(AWSError<CoreErrors>(CoreErrors::UNKNOWN, "Json Parser Error", jsonValue.GetErrorMessage(), false));
+        }
+
+        //this is stupid, but gcc doesn't pick up the covariant on the dereference so we have to give it a little hint.
+        return JsonOutcome(AmazonWebServiceResult<JsonValue>(std::move(jsonValue),
+            httpOutcome.GetResult()->GetHeaders(),
+            httpOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return JsonOutcome(AmazonWebServiceResult<JsonValue>(JsonValue(), httpOutcome.GetResult()->GetHeaders()));
+}
+
+JsonOutcome AWSJsonClient::MakeEventStreamRequest(std::shared_ptr<Aws::Http::HttpRequest>& request) const
+{
+    // request is assumed to be signed
+    std::shared_ptr<HttpResponse> httpResponse = MakeHttpRequest(request);
+
+    if (DoesResponseGenerateError(httpResponse))
+    {
+        AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned error. Attempting to generate appropriate error codes from response");
+        auto error = BuildAWSError(httpResponse);
+        return JsonOutcome(std::move(error));
+    }
+
+    AWS_LOGSTREAM_DEBUG(AWS_CLIENT_LOG_TAG, "Request returned successful response.");
+
+    HttpResponseOutcome httpOutcome(std::move(httpResponse));
+
+    if (httpOutcome.GetResult()->GetResponseBody().tellp() > 0)
+    {
+        JsonValue jsonValue(httpOutcome.GetResult()->GetResponseBody());
+        if (!jsonValue.WasParseSuccessful())
+        {
+            return JsonOutcome(AWSError<CoreErrors>(CoreErrors::UNKNOWN, "Json Parser Error", jsonValue.GetErrorMessage(), false));
+        }
+
+        //this is stupid, but gcc doesn't pick up the covariant on the dereference so we have to give it a little hint.
+        return JsonOutcome(AmazonWebServiceResult<JsonValue>(std::move(jsonValue),
+            httpOutcome.GetResult()->GetHeaders(),
+            httpOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return JsonOutcome(AmazonWebServiceResult<JsonValue>(JsonValue(), httpOutcome.GetResult()->GetHeaders()));
+}
+
+AWSError<CoreErrors> AWSJsonClient::BuildAWSError(
+    const std::shared_ptr<Aws::Http::HttpResponse>& httpResponse) const
+{
+    AWSError<CoreErrors> error;
+    if (httpResponse->HasClientError())
+    {
+        bool retryable = httpResponse->GetClientErrorType() == CoreErrors::NETWORK_CONNECTION ? true : false;
+        error = AWSError<CoreErrors>(httpResponse->GetClientErrorType(), "", httpResponse->GetClientErrorMessage(), retryable);
+    }
+    else if (!httpResponse->GetResponseBody() || httpResponse->GetResponseBody().tellp() < 1)
+    {
+        auto responseCode = httpResponse->GetResponseCode();
+        auto errorCode = GuessBodylessErrorType(responseCode);
+
+        Aws::StringStream ss;
+        ss << "No response body.";
+        error = AWSError<CoreErrors>(errorCode, "", ss.str(),
+            IsRetryableHttpResponseCode(responseCode));
+    }
+    else
+    {
+        assert(httpResponse->GetResponseCode() != HttpResponseCode::OK);
+        error = GetErrorMarshaller()->Marshall(*httpResponse);
+    }
+
+    error.SetResponseHeaders(httpResponse->GetHeaders());
+    error.SetResponseCode(httpResponse->GetResponseCode());
+    error.SetRemoteHostIpAddress(httpResponse->GetOriginatingRequest().GetResolvedRemoteHost());
+    AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, error);
+    return error;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+AWSXMLClient::AWSXMLClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Client::AWSAuthSigner>& signer,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    BASECLASS(configuration, signer, errorMarshaller)
+{
+}
+
+AWSXMLClient::AWSXMLClient(const Aws::Client::ClientConfiguration& configuration,
+    const std::shared_ptr<Aws::Auth::AWSAuthSignerProvider>& signerProvider,
+    const std::shared_ptr<AWSErrorMarshaller>& errorMarshaller) :
+    BASECLASS(configuration, signerProvider, errorMarshaller)
+{
+}
+
+XmlOutcome AWSXMLClient::MakeRequest(const Aws::Http::URI& uri,
+    const Aws::AmazonWebServiceRequest& request,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome(BASECLASS::AttemptExhaustively(uri, request, method, signerName, signerRegionOverride, signerServiceNameOverride));
+    if (!httpOutcome.IsSuccess())
+    {
+        return XmlOutcome(std::move(httpOutcome));
+    }
+
+    if (httpOutcome.GetResult()->GetResponseBody().tellp() > 0)
+    {
+        XmlDocument xmlDoc = XmlDocument::CreateFromXmlStream(httpOutcome.GetResult()->GetResponseBody());
+
+        if (!xmlDoc.WasParseSuccessful())
+        {
+            AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, "Xml parsing for error failed with message " << xmlDoc.GetErrorMessage().c_str());
+            return AWSError<CoreErrors>(CoreErrors::UNKNOWN, "Xml Parse Error", xmlDoc.GetErrorMessage(), false);
+        }
+
+        return XmlOutcome(AmazonWebServiceResult<XmlDocument>(std::move(xmlDoc),
+            httpOutcome.GetResult()->GetHeaders(), httpOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return XmlOutcome(AmazonWebServiceResult<XmlDocument>(XmlDocument(), httpOutcome.GetResult()->GetHeaders()));
+}
+
+XmlOutcome AWSXMLClient::MakeRequest(const Aws::Http::URI& uri,
+    Http::HttpMethod method,
+    const char* signerName,
+    const char* requestName,
+    const char* signerRegionOverride,
+    const char* signerServiceNameOverride) const
+{
+    HttpResponseOutcome httpOutcome(BASECLASS::AttemptExhaustively(uri, method, signerName, requestName, signerRegionOverride, signerServiceNameOverride));
+    if (!httpOutcome.IsSuccess())
+    {
+        return XmlOutcome(std::move(httpOutcome));
+    }
+
+    if (httpOutcome.GetResult()->GetResponseBody().tellp() > 0)
+    {
+        return XmlOutcome(AmazonWebServiceResult<XmlDocument>(
+            XmlDocument::CreateFromXmlStream(httpOutcome.GetResult()->GetResponseBody()),
+            httpOutcome.GetResult()->GetHeaders(), httpOutcome.GetResult()->GetResponseCode()));
+    }
+
+    return XmlOutcome(AmazonWebServiceResult<XmlDocument>(XmlDocument(), httpOutcome.GetResult()->GetHeaders()));
+}
+
+AWSError<CoreErrors> AWSXMLClient::BuildAWSError(const std::shared_ptr<Http::HttpResponse>& httpResponse) const
+{
+    AWSError<CoreErrors> error;
+    if (httpResponse->HasClientError())
+    {
+        bool retryable = httpResponse->GetClientErrorType() == CoreErrors::NETWORK_CONNECTION ? true : false;
+        error = AWSError<CoreErrors>(httpResponse->GetClientErrorType(), "", httpResponse->GetClientErrorMessage(), retryable);
+    }
+    else if (!httpResponse->GetResponseBody() || httpResponse->GetResponseBody().tellp() < 1)
+    {
+        auto responseCode = httpResponse->GetResponseCode();
+        auto errorCode = GuessBodylessErrorType(responseCode);
+
+        Aws::StringStream ss;
+        ss << "No response body.";
+        error = AWSError<CoreErrors>(errorCode, "", ss.str(), IsRetryableHttpResponseCode(responseCode));
+    }
+    else
+    {
+        assert(httpResponse->GetResponseCode() != HttpResponseCode::OK);
+
+        // When trying to build an AWS Error from a response which is an FStream, we need to rewind the
+        // file pointer back to the beginning in order to correctly read the input using the XML string iterator
+        if ((httpResponse->GetResponseBody().tellp() > 0)
+            && (httpResponse->GetResponseBody().tellg() > 0))
+        {
+            httpResponse->GetResponseBody().seekg(0);
+        }
+
+        error = GetErrorMarshaller()->Marshall(*httpResponse);
+    }
+
+    error.SetResponseHeaders(httpResponse->GetHeaders());
+    error.SetResponseCode(httpResponse->GetResponseCode());
+    error.SetRemoteHostIpAddress(httpResponse->GetOriginatingRequest().GetResolvedRemoteHost());
+    AWS_LOGSTREAM_ERROR(AWS_CLIENT_LOG_TAG, error);
+    return error;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSErrorMarshaller.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSErrorMarshaller.cpp
new file mode 100644
index 0000000000..f5fa676f98
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AWSErrorMarshaller.cpp
@@ -0,0 +1,180 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/AWSErrorMarshaller.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/json/JsonSerializer.h>
+#include <aws/core/utils/xml/XmlSerializer.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/client/AWSError.h>
+#include <aws/core/client/CoreErrors.h>
+
+using namespace Aws::Utils::Logging;
+using namespace Aws::Utils::Json;
+using namespace Aws::Utils::Xml;
+using namespace Aws::Http;
+using namespace Aws::Utils;
+using namespace Aws::Client;
+
+static const char AWS_ERROR_MARSHALLER_LOG_TAG[] = "AWSErrorMarshaller";
+AWS_CORE_API extern const char MESSAGE_LOWER_CASE[]     = "message";
+AWS_CORE_API extern const char MESSAGE_CAMEL_CASE[]     = "Message";
+AWS_CORE_API extern const char ERROR_TYPE_HEADER[]      = "x-amzn-ErrorType";
+AWS_CORE_API extern const char REQUEST_ID_HEADER[]      = "x-amzn-RequestId";
+AWS_CORE_API extern const char TYPE[]                   = "__type";
+
+AWSError<CoreErrors> JsonErrorMarshaller::Marshall(const Aws::Http::HttpResponse& httpResponse) const
+{
+    JsonValue exceptionPayload(httpResponse.GetResponseBody());
+    JsonView payloadView(exceptionPayload);
+    AWSError<CoreErrors> error;
+    if (exceptionPayload.WasParseSuccessful())
+    {
+        AWS_LOGSTREAM_TRACE(AWS_ERROR_MARSHALLER_LOG_TAG, "Error response is " << payloadView.WriteReadable());
+
+        Aws::String message(payloadView.ValueExists(MESSAGE_CAMEL_CASE) ? payloadView.GetString(MESSAGE_CAMEL_CASE) :
+                payloadView.ValueExists(MESSAGE_LOWER_CASE) ? payloadView.GetString(MESSAGE_LOWER_CASE) : "");
+
+        if (httpResponse.HasHeader(ERROR_TYPE_HEADER))
+        {
+            error = Marshall(httpResponse.GetHeader(ERROR_TYPE_HEADER), message);
+        }
+        else if (payloadView.ValueExists(TYPE))
+        {
+            error = Marshall(payloadView.GetString(TYPE), message);
+        }
+        else
+        {
+            error = FindErrorByHttpResponseCode(httpResponse.GetResponseCode());
+            error.SetMessage(message);
+        }
+    }
+    else
+    {
+        error = AWSError<CoreErrors>(CoreErrors::UNKNOWN, "", "Failed to parse error payload", false);
+    }
+
+    error.SetRequestId(httpResponse.HasHeader(REQUEST_ID_HEADER) ? httpResponse.GetHeader(REQUEST_ID_HEADER) : "");
+    error.SetJsonPayload(std::move(exceptionPayload));
+    return error;
+}
+
+const JsonValue& JsonErrorMarshaller::GetJsonPayloadFromError(const AWSError<CoreErrors>& error) const
+{
+    return error.GetJsonPayload();
+}
+
+AWSError<CoreErrors> XmlErrorMarshaller::Marshall(const Aws::Http::HttpResponse& httpResponse) const
+{
+    XmlDocument doc = XmlDocument::CreateFromXmlStream(httpResponse.GetResponseBody());
+    AWS_LOGSTREAM_TRACE(AWS_ERROR_MARSHALLER_LOG_TAG, "Error response is " << doc.ConvertToString());
+    bool errorParsed = false;
+    AWSError<CoreErrors> error;
+    if (doc.WasParseSuccessful() && !doc.GetRootElement().IsNull())
+    {
+        XmlNode errorNode = doc.GetRootElement();
+
+        Aws::String requestId(!errorNode.FirstChild("RequestId").IsNull() ? errorNode.FirstChild("RequestId").GetText() :
+            !errorNode.FirstChild("RequestID").IsNull() ? errorNode.FirstChild("RequestID").GetText() : "");
+
+        if (errorNode.GetName() != "Error")
+        {
+            errorNode = doc.GetRootElement().FirstChild("Error");
+        }
+        if (errorNode.IsNull())
+        {
+            errorNode = doc.GetRootElement().FirstChild("Errors");
+            if(!errorNode.IsNull())
+            {
+                errorNode = errorNode.FirstChild("Error");
+            }
+        }
+
+        if (!errorNode.IsNull())
+        {
+            requestId = !requestId.empty() ? requestId : !errorNode.FirstChild("RequestId").IsNull() ? errorNode.FirstChild("RequestId").GetText() :
+                !errorNode.FirstChild("RequestID").IsNull() ? errorNode.FirstChild("RequestID").GetText() : "";
+
+            XmlNode codeNode = errorNode.FirstChild("Code");
+            XmlNode messageNode = errorNode.FirstChild("Message");
+
+            if (!codeNode.IsNull())
+            {
+                error = Marshall(StringUtils::Trim(codeNode.GetText().c_str()),
+                                 StringUtils::Trim(messageNode.GetText().c_str()));
+                errorParsed = true;
+            }
+        }
+
+        error.SetRequestId(requestId);
+    }
+
+    if(!errorParsed)
+    {
+        // An error occurred attempting to parse the httpResponse as an XML stream, so we're just
+        // going to dump the XML parsing error and the http response code as a string
+        AWS_LOGSTREAM_WARN(AWS_ERROR_MARSHALLER_LOG_TAG, "Unable to generate a proper httpResponse from the response "
+                "stream.   Response code: " << static_cast< uint32_t >(httpResponse.GetResponseCode()));
+        error = FindErrorByHttpResponseCode(httpResponse.GetResponseCode());
+    }
+
+    error.SetXmlPayload(std::move(doc));
+    return error;
+}
+
+const XmlDocument& XmlErrorMarshaller::GetXmlPayloadFromError(const AWSError<CoreErrors>& error) const
+{
+    return error.GetXmlPayload();
+}
+
+AWSError<CoreErrors> AWSErrorMarshaller::Marshall(const Aws::String& exceptionName, const Aws::String& message) const
+{
+    if(exceptionName.empty())
+    {
+        return AWSError<CoreErrors>(CoreErrors::UNKNOWN, "", message, false);
+    }
+
+    auto locationOfPound = exceptionName.find_first_of('#');
+    auto locationOfColon = exceptionName.find_first_of(':');
+    Aws::String formalExceptionName;
+
+    if (locationOfPound != Aws::String::npos)
+    {
+        formalExceptionName = exceptionName.substr(locationOfPound + 1);
+    }
+    else if (locationOfColon != Aws::String::npos)
+    {
+        formalExceptionName = exceptionName.substr(0, locationOfColon);
+    }
+    else
+    {
+        formalExceptionName = exceptionName;
+    }
+
+    AWSError<CoreErrors> error = FindErrorByName(formalExceptionName.c_str());
+    if (error.GetErrorType() != CoreErrors::UNKNOWN)
+    {
+        AWS_LOGSTREAM_WARN(AWS_ERROR_MARSHALLER_LOG_TAG, "Encountered AWSError '" << formalExceptionName.c_str() <<
+                "': " << message.c_str());
+        error.SetExceptionName(formalExceptionName);
+        error.SetMessage(message);
+        return error;
+    }
+
+    AWS_LOGSTREAM_WARN(AWS_ERROR_MARSHALLER_LOG_TAG, "Encountered Unknown AWSError '" << exceptionName.c_str() <<
+            "': " <<  message.c_str());
+
+    return AWSError<CoreErrors>(CoreErrors::UNKNOWN, exceptionName, "Unable to parse ExceptionName: " + exceptionName + " Message: " + message, false);
+}
+
+AWSError<CoreErrors> AWSErrorMarshaller::FindErrorByName(const char* errorName) const
+{
+    return CoreErrorsMapper::GetErrorForName(errorName);
+}
+
+AWSError<CoreErrors> AWSErrorMarshaller::FindErrorByHttpResponseCode(Aws::Http::HttpResponseCode code) const
+{
+    return CoreErrorsMapper::GetErrorForHttpResponseCode(code);
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AsyncCallerContext.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AsyncCallerContext.cpp
new file mode 100644
index 0000000000..4f9abdc9e4
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/AsyncCallerContext.cpp
@@ -0,0 +1,16 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/AsyncCallerContext.h>
+#include <aws/core/utils/UUID.h>
+
+namespace Aws
+{
+    namespace Client
+    {
+        AsyncCallerContext::AsyncCallerContext() : m_uuid(Aws::Utils::UUID::RandomUUID())
+        {}
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/ClientConfiguration.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/ClientConfiguration.cpp
new file mode 100644
index 0000000000..e517379a77
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/ClientConfiguration.cpp
@@ -0,0 +1,160 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/ClientConfiguration.h>
+#include <aws/core/auth/AWSCredentialsProvider.h>
+#include <aws/core/client/DefaultRetryStrategy.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/platform/OSVersionInfo.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/threading/Executor.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/Version.h>
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+namespace Aws
+{
+namespace Auth
+{
+    AWS_CORE_API Aws::String GetConfigProfileFilename();
+}
+namespace Client
+{
+
+static const char* CLIENT_CONFIG_TAG = "ClientConfiguration";
+
+AWS_CORE_API Aws::String ComputeUserAgentString()
+{
+  Aws::StringStream ss;
+  ss << "aws-sdk-cpp/" << Version::GetVersionString() << " " <<  Aws::OSVersionInfo::ComputeOSVersionString()
+      << " " << Version::GetCompilerVersionString();
+  return ss.str();
+}
+
+ClientConfiguration::ClientConfiguration() :
+    scheme(Aws::Http::Scheme::HTTPS),
+    useDualStack(false),
+    maxConnections(25),
+    httpRequestTimeoutMs(0),
+    requestTimeoutMs(3000),
+    connectTimeoutMs(1000),
+    enableTcpKeepAlive(true),
+    tcpKeepAliveIntervalMs(30000),
+    lowSpeedLimit(1),
+    proxyScheme(Aws::Http::Scheme::HTTP),
+    proxyPort(0),
+    executor(Aws::MakeShared<Aws::Utils::Threading::DefaultExecutor>(CLIENT_CONFIG_TAG)),
+    verifySSL(true),
+    writeRateLimiter(nullptr),
+    readRateLimiter(nullptr),
+    httpLibOverride(Aws::Http::TransferLibType::DEFAULT_CLIENT),
+    followRedirects(FollowRedirectsPolicy::DEFAULT),
+    disableExpectHeader(false),
+    enableClockSkewAdjustment(true),
+    enableHostPrefixInjection(true),
+    enableEndpointDiscovery(false),
+    profileName(Aws::Auth::GetConfigProfileName())
+{
+    AWS_LOGSTREAM_DEBUG(CLIENT_CONFIG_TAG, "ClientConfiguration will use SDK Auto Resolved profile: [" << profileName << "] if not specified by users.");
+
+    // Initialize Retry Strategy
+    int maxAttempts;
+    Aws::String maxAttemptsString = Aws::Environment::GetEnv("AWS_MAX_ATTEMPTS");
+    if (maxAttemptsString.empty())
+    {
+        maxAttemptsString = Aws::Config::GetCachedConfigValue("max_attempts");
+    }
+    // In case users specify 0 explicitly to disable retry.
+    if (maxAttemptsString == "0")
+    {
+        maxAttempts = 0;
+    }
+    else
+    {
+        maxAttempts = static_cast<int>(Aws::Utils::StringUtils::ConvertToInt32(maxAttemptsString.c_str()));
+        if (maxAttempts == 0)
+        {
+            AWS_LOGSTREAM_WARN(CLIENT_CONFIG_TAG, "Retry Strategy will use the default max attempts.");
+            maxAttempts = -1;
+        }
+    }
+
+    Aws::String retryMode = Aws::Environment::GetEnv("AWS_RETRY_MODE");
+    if (retryMode.empty())
+    {
+        retryMode = Aws::Config::GetCachedConfigValue("retry_mode");
+    }
+    if (retryMode == "standard")
+    {
+        if (maxAttempts < 0)
+        {
+            retryStrategy = Aws::MakeShared<StandardRetryStrategy>(CLIENT_CONFIG_TAG);
+        }
+        else
+        {
+            retryStrategy = Aws::MakeShared<StandardRetryStrategy>(CLIENT_CONFIG_TAG, maxAttempts);
+        }
+    }
+    else
+    {
+        retryStrategy = Aws::MakeShared<DefaultRetryStrategy>(CLIENT_CONFIG_TAG);
+    }
+
+    // Automatically determine the AWS region from environment variables, configuration file and EC2 metadata.
+    region = Aws::Environment::GetEnv("AWS_DEFAULT_REGION");
+    if (!region.empty())
+    {
+        return;
+    }
+
+    region = Aws::Environment::GetEnv("AWS_REGION");
+    if (!region.empty())
+    {
+        return;
+    }
+
+    region = Aws::Config::GetCachedConfigValue("region");
+    if (!region.empty())
+    {
+        return;
+    }
+
+    if (Aws::Utils::StringUtils::ToLower(Aws::Environment::GetEnv("AWS_EC2_METADATA_DISABLED").c_str()) != "true")
+    {
+        auto client = Aws::Internal::GetEC2MetadataClient();
+        if (client)
+        {
+            region = client->GetCurrentRegion();
+        }
+    }
+
+    if (!region.empty())
+    {
+        return;
+    }
+
+    region = Aws::String(Aws::Region::US_EAST_1);
+}
+
+ClientConfiguration::ClientConfiguration(const char* profile) : ClientConfiguration()
+{
+    if (profile && Aws::Config::HasCachedConfigProfile(profile))
+    {
+        this->profileName = Aws::String(profile);
+        AWS_LOGSTREAM_DEBUG(CLIENT_CONFIG_TAG, "Use user specified profile: [" << this->profileName << "] for ClientConfiguration.");
+        auto tmpRegion = Aws::Config::GetCachedConfigProfile(this->profileName).GetRegion();
+        if (!tmpRegion.empty())
+        {
+            region = tmpRegion;
+        }
+        return;
+    }
+    AWS_LOGSTREAM_WARN(CLIENT_CONFIG_TAG, "User specified profile: [" << profile << "] is not found, will use the SDK resolved one.");
+}
+
+} // namespace Client
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/CoreErrors.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/CoreErrors.cpp
new file mode 100644
index 0000000000..8c2c288dcd
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/CoreErrors.cpp
@@ -0,0 +1,151 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/AWSError.h>
+#include <aws/core/client/CoreErrors.h>
+#include <aws/core/utils/memory/stl/AWSMap.h>
+#include <aws/core/utils/HashingUtils.h>
+
+using namespace Aws::Client;
+using namespace Aws::Utils;
+using namespace Aws::Http;
+
+#ifdef _MSC_VER
+#pragma warning(push)
+// VS2015 compiler's bug, warning s_CoreErrorsMapper: symbol will be dynamically initialized (implementation limitation)
+#pragma warning(disable : 4592)
+#endif
+
+static Aws::UniquePtr<Aws::Map<Aws::String, AWSError<CoreErrors> > > s_CoreErrorsMapper(nullptr);
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+void CoreErrorsMapper::InitCoreErrorsMapper()
+{
+    if (s_CoreErrorsMapper)
+    {
+      return;
+    }
+    s_CoreErrorsMapper = Aws::MakeUnique<Aws::Map<Aws::String, AWSError<CoreErrors> > >("InitCoreErrorsMapper");
+
+    s_CoreErrorsMapper->emplace("IncompleteSignature", AWSError<CoreErrors>(CoreErrors::INCOMPLETE_SIGNATURE, false));
+    s_CoreErrorsMapper->emplace("IncompleteSignatureException", AWSError<CoreErrors>(CoreErrors::INCOMPLETE_SIGNATURE, false));
+    s_CoreErrorsMapper->emplace("InvalidSignatureException", AWSError<CoreErrors>(CoreErrors::INVALID_SIGNATURE, false));
+    s_CoreErrorsMapper->emplace("InvalidSignature", AWSError<CoreErrors>(CoreErrors::INVALID_SIGNATURE, false));
+    s_CoreErrorsMapper->emplace("InternalFailureException", AWSError<CoreErrors>(CoreErrors::INTERNAL_FAILURE, true));
+    s_CoreErrorsMapper->emplace("InternalFailure", AWSError<CoreErrors>(CoreErrors::INTERNAL_FAILURE, true));
+    s_CoreErrorsMapper->emplace("InternalServerError", AWSError<CoreErrors>(CoreErrors::INTERNAL_FAILURE, true));
+    s_CoreErrorsMapper->emplace("InternalError", AWSError<CoreErrors>(CoreErrors::INTERNAL_FAILURE, true));
+    s_CoreErrorsMapper->emplace("InvalidActionException", AWSError<CoreErrors>(CoreErrors::INVALID_ACTION, false));
+    s_CoreErrorsMapper->emplace("InvalidAction", AWSError<CoreErrors>(CoreErrors::INVALID_ACTION, false));
+    s_CoreErrorsMapper->emplace("InvalidClientTokenIdException", AWSError<CoreErrors>(CoreErrors::INVALID_CLIENT_TOKEN_ID, false));
+    s_CoreErrorsMapper->emplace("InvalidClientTokenId", AWSError<CoreErrors>(CoreErrors::INVALID_CLIENT_TOKEN_ID, false));
+    s_CoreErrorsMapper->emplace("InvalidParameterCombinationException", AWSError<CoreErrors>(CoreErrors::INVALID_PARAMETER_COMBINATION, false));
+    s_CoreErrorsMapper->emplace("InvalidParameterCombination", AWSError<CoreErrors>(CoreErrors::INVALID_PARAMETER_COMBINATION, false));
+    s_CoreErrorsMapper->emplace("InvalidParameterValueException", AWSError<CoreErrors>(CoreErrors::INVALID_PARAMETER_VALUE, false));
+    s_CoreErrorsMapper->emplace("InvalidParameterValue", AWSError<CoreErrors>(CoreErrors::INVALID_PARAMETER_VALUE, false));
+    s_CoreErrorsMapper->emplace("InvalidQueryParameterException", AWSError<CoreErrors>(CoreErrors::INVALID_QUERY_PARAMETER, false));
+    s_CoreErrorsMapper->emplace("InvalidQueryParameter", AWSError<CoreErrors>(CoreErrors::INVALID_QUERY_PARAMETER, false));
+    s_CoreErrorsMapper->emplace("MalformedQueryStringException", AWSError<CoreErrors>(CoreErrors::MALFORMED_QUERY_STRING, false));
+    s_CoreErrorsMapper->emplace("MalformedQueryString", AWSError<CoreErrors>(CoreErrors::MALFORMED_QUERY_STRING, false));
+    s_CoreErrorsMapper->emplace("MissingActionException", AWSError<CoreErrors>(CoreErrors::MISSING_ACTION, false));
+    s_CoreErrorsMapper->emplace("MissingAction", AWSError<CoreErrors>(CoreErrors::MISSING_ACTION, false));
+    s_CoreErrorsMapper->emplace("MissingAuthenticationTokenException", AWSError<CoreErrors>(CoreErrors::MISSING_AUTHENTICATION_TOKEN, false));
+    s_CoreErrorsMapper->emplace("MissingAuthenticationToken", AWSError<CoreErrors>(CoreErrors::MISSING_AUTHENTICATION_TOKEN, false));
+    s_CoreErrorsMapper->emplace("MissingParameterException", AWSError<CoreErrors>(CoreErrors::MISSING_PARAMETER, false));
+    s_CoreErrorsMapper->emplace("MissingParameter", AWSError<CoreErrors>(CoreErrors::MISSING_PARAMETER, false));
+    s_CoreErrorsMapper->emplace("OptInRequired", AWSError<CoreErrors>(CoreErrors::OPT_IN_REQUIRED, false));
+    s_CoreErrorsMapper->emplace("RequestExpiredException", AWSError<CoreErrors>(CoreErrors::REQUEST_EXPIRED, true));
+    s_CoreErrorsMapper->emplace("RequestExpired", AWSError<CoreErrors>(CoreErrors::REQUEST_EXPIRED, true));
+    s_CoreErrorsMapper->emplace("ServiceUnavailableException", AWSError<CoreErrors>(CoreErrors::SERVICE_UNAVAILABLE, true));
+    s_CoreErrorsMapper->emplace("ServiceUnavailableError", AWSError<CoreErrors>(CoreErrors::SERVICE_UNAVAILABLE, true));
+    s_CoreErrorsMapper->emplace("ServiceUnavailable", AWSError<CoreErrors>(CoreErrors::SERVICE_UNAVAILABLE, true));
+    s_CoreErrorsMapper->emplace("RequestThrottledException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("RequestThrottled", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("ThrottlingException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("ThrottledException", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("Throttling", AWSError<CoreErrors>(CoreErrors::THROTTLING, true));
+    s_CoreErrorsMapper->emplace("ValidationErrorException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
+    s_CoreErrorsMapper->emplace("ValidationException", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
+    s_CoreErrorsMapper->emplace("ValidationError", AWSError<CoreErrors>(CoreErrors::VALIDATION, false));
+    s_CoreErrorsMapper->emplace("AccessDeniedException", AWSError<CoreErrors>(CoreErrors::ACCESS_DENIED, false));
+    s_CoreErrorsMapper->emplace("AccessDenied", AWSError<CoreErrors>(CoreErrors::ACCESS_DENIED, false));
+    s_CoreErrorsMapper->emplace("ResourceNotFoundException", AWSError<CoreErrors>(CoreErrors::RESOURCE_NOT_FOUND, false));
+    s_CoreErrorsMapper->emplace("ResourceNotFound", AWSError<CoreErrors>(CoreErrors::RESOURCE_NOT_FOUND, false));
+    s_CoreErrorsMapper->emplace("UnrecognizedClientException", AWSError<CoreErrors>(CoreErrors::UNRECOGNIZED_CLIENT, false));
+    s_CoreErrorsMapper->emplace("UnrecognizedClient", AWSError<CoreErrors>(CoreErrors::UNRECOGNIZED_CLIENT, false));
+    s_CoreErrorsMapper->emplace("SlowDownException", AWSError<CoreErrors>(CoreErrors::SLOW_DOWN, true));
+    s_CoreErrorsMapper->emplace("SlowDown", AWSError<CoreErrors>(CoreErrors::SLOW_DOWN, true));
+    s_CoreErrorsMapper->emplace("SignatureDoesNotMatchException", AWSError<CoreErrors>(CoreErrors::SIGNATURE_DOES_NOT_MATCH, false));
+    s_CoreErrorsMapper->emplace("SignatureDoesNotMatch", AWSError<CoreErrors>(CoreErrors::SIGNATURE_DOES_NOT_MATCH, false));
+    s_CoreErrorsMapper->emplace("InvalidAccessKeyIdException", AWSError<CoreErrors>(CoreErrors::INVALID_ACCESS_KEY_ID, false));
+    s_CoreErrorsMapper->emplace("InvalidAccessKeyId", AWSError<CoreErrors>(CoreErrors::INVALID_ACCESS_KEY_ID, false));
+    s_CoreErrorsMapper->emplace("RequestTimeTooSkewedException", AWSError<CoreErrors>(CoreErrors::REQUEST_TIME_TOO_SKEWED, true));
+    s_CoreErrorsMapper->emplace("RequestTimeTooSkewed", AWSError<CoreErrors>(CoreErrors::REQUEST_TIME_TOO_SKEWED, true));
+    s_CoreErrorsMapper->emplace("RequestTimeoutException", AWSError<CoreErrors>(CoreErrors::REQUEST_TIMEOUT, true));
+    s_CoreErrorsMapper->emplace("RequestTimeout", AWSError<CoreErrors>(CoreErrors::REQUEST_TIMEOUT, true));
+}
+
+void CoreErrorsMapper::CleanupCoreErrorsMapper()
+{
+    if (s_CoreErrorsMapper)
+    {
+      s_CoreErrorsMapper = nullptr;
+    }
+}
+
+AWSError<CoreErrors> CoreErrorsMapper::GetErrorForName(const char* errorName)
+{
+    auto iter = s_CoreErrorsMapper->find(errorName);
+    if (iter != s_CoreErrorsMapper->end())
+    {
+      return iter->second;
+    }
+    return AWSError<CoreErrors>(CoreErrors::UNKNOWN, false);
+}
+
+AWS_CORE_API AWSError<CoreErrors> CoreErrorsMapper::GetErrorForHttpResponseCode(HttpResponseCode code)
+{
+    // best effort attempt to map HTTP response codes to CoreErrors
+    bool retryable = IsRetryableHttpResponseCode(code);
+    AWSError<CoreErrors> error;
+    switch (code)
+    {
+        case HttpResponseCode::UNAUTHORIZED:
+        case HttpResponseCode::FORBIDDEN:
+            error =  AWSError<CoreErrors>(CoreErrors::ACCESS_DENIED, retryable);
+            break;
+        case HttpResponseCode::NOT_FOUND:
+            error = AWSError<CoreErrors>(CoreErrors::RESOURCE_NOT_FOUND, retryable);
+            break;
+        case HttpResponseCode::TOO_MANY_REQUESTS:
+            error = AWSError<CoreErrors>(CoreErrors::SLOW_DOWN, retryable);
+            break;
+        case HttpResponseCode::INTERNAL_SERVER_ERROR:
+            error = AWSError<CoreErrors>(CoreErrors::INTERNAL_FAILURE, retryable);
+            break;
+        case HttpResponseCode::BANDWIDTH_LIMIT_EXCEEDED:
+            error = AWSError<CoreErrors>(CoreErrors::THROTTLING, retryable);
+            break;
+        case HttpResponseCode::SERVICE_UNAVAILABLE:
+            error = AWSError<CoreErrors>(CoreErrors::SERVICE_UNAVAILABLE, retryable);
+            break;
+        case HttpResponseCode::REQUEST_TIMEOUT:
+        case HttpResponseCode::AUTHENTICATION_TIMEOUT:
+        case HttpResponseCode::LOGIN_TIMEOUT:
+        case HttpResponseCode::GATEWAY_TIMEOUT:
+        case HttpResponseCode::NETWORK_READ_TIMEOUT:
+        case HttpResponseCode::NETWORK_CONNECT_TIMEOUT:
+            error = AWSError<CoreErrors>(CoreErrors::REQUEST_TIMEOUT, retryable);
+            break;
+        default:
+            int codeValue = static_cast<int>(code);
+            error = AWSError<CoreErrors>(CoreErrors::UNKNOWN, codeValue >= 500 && codeValue < 600);
+    }
+    error.SetResponseCode(code);
+    return error;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/DefaultRetryStrategy.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/DefaultRetryStrategy.cpp
new file mode 100644
index 0000000000..7e57c79ffc
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/DefaultRetryStrategy.cpp
@@ -0,0 +1,32 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/DefaultRetryStrategy.h>
+
+#include <aws/core/client/AWSError.h>
+#include <aws/core/utils/UnreferencedParam.h>
+
+using namespace Aws;
+using namespace Aws::Client;
+
+bool DefaultRetryStrategy::ShouldRetry(const AWSError<CoreErrors>& error, long attemptedRetries) const
+{    
+    if (attemptedRetries >= m_maxRetries)
+        return false;
+
+    return error.ShouldRetry();
+}
+
+long DefaultRetryStrategy::CalculateDelayBeforeNextRetry(const AWSError<CoreErrors>& error, long attemptedRetries) const
+{
+    AWS_UNREFERENCED_PARAM(error);
+
+    if (attemptedRetries == 0)
+    {
+        return 0;
+    }
+
+    return (1 << attemptedRetries) * m_scaleFactor;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/RetryStrategy.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/RetryStrategy.cpp
new file mode 100644
index 0000000000..b439b7ca99
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/RetryStrategy.cpp
@@ -0,0 +1,102 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/RetryStrategy.h>
+
+#include <aws/core/client/AWSError.h>
+#include <aws/core/client/CoreErrors.h>
+#include <aws/core/utils/Outcome.h>
+
+using namespace Aws::Utils::Threading;
+
+namespace Aws
+{
+    namespace Client
+    {
+        static const int INITIAL_RETRY_TOKENS = 500;
+        static const int RETRY_COST = 5;
+        static const int NO_RETRY_INCREMENT = 1;
+        static const int TIMEOUT_RETRY_COST = 10;
+
+        StandardRetryStrategy::StandardRetryStrategy(long maxAttempts) :
+            m_retryQuotaContainer(Aws::MakeShared<DefaultRetryQuotaContainer>("StandardRetryStrategy")),
+            m_maxAttempts(maxAttempts)
+        {}
+
+        StandardRetryStrategy::StandardRetryStrategy(std::shared_ptr<RetryQuotaContainer> retryQuotaContainer, long maxAttempts) :
+            m_retryQuotaContainer(retryQuotaContainer),
+            m_maxAttempts(maxAttempts)
+        {}
+
+        void StandardRetryStrategy::RequestBookkeeping(const HttpResponseOutcome& httpResponseOutcome)
+        {
+            if (httpResponseOutcome.IsSuccess())
+            {
+                m_retryQuotaContainer->ReleaseRetryQuota(NO_RETRY_INCREMENT);
+            }
+        }
+
+        void StandardRetryStrategy::RequestBookkeeping(const HttpResponseOutcome& httpResponseOutcome, const AWSError<CoreErrors>& lastError)
+        {
+            if (httpResponseOutcome.IsSuccess())
+            {
+                m_retryQuotaContainer->ReleaseRetryQuota(lastError);
+            }
+        }
+
+        bool StandardRetryStrategy::ShouldRetry(const AWSError<CoreErrors>& error, long attemptedRetries) const
+        {
+            if (!error.ShouldRetry())
+                return false;
+
+            if (attemptedRetries + 1 >= m_maxAttempts)
+                return false;
+
+            return m_retryQuotaContainer->AcquireRetryQuota(error);
+        }
+
+        long StandardRetryStrategy::CalculateDelayBeforeNextRetry(const AWSError<CoreErrors>& error, long attemptedRetries) const
+        {
+            AWS_UNREFERENCED_PARAM(error);
+            return (std::min)(rand() % 1000 * (1 << attemptedRetries), 20000);
+        }
+
+        DefaultRetryQuotaContainer::DefaultRetryQuotaContainer() : m_retryQuota(INITIAL_RETRY_TOKENS)
+        {}
+
+        bool DefaultRetryQuotaContainer::AcquireRetryQuota(int capacityAmount)
+        {
+            WriterLockGuard guard(m_retryQuotaLock);
+
+            if (capacityAmount > m_retryQuota)
+            {
+                return false;
+            }
+            else
+            {
+                m_retryQuota -= capacityAmount;
+                return true;
+            }
+        }
+
+        bool DefaultRetryQuotaContainer::AcquireRetryQuota(const AWSError<CoreErrors>& error)
+        {
+            int capacityAmount = error.GetErrorType() == CoreErrors::REQUEST_TIMEOUT ? TIMEOUT_RETRY_COST : RETRY_COST;
+            return AcquireRetryQuota(capacityAmount);
+        }
+
+        void DefaultRetryQuotaContainer::ReleaseRetryQuota(int capacityAmount)
+        {
+            WriterLockGuard guard(m_retryQuotaLock);
+            m_retryQuota = (std::min)(m_retryQuota + capacityAmount, INITIAL_RETRY_TOKENS);
+        }
+
+        void DefaultRetryQuotaContainer::ReleaseRetryQuota(const AWSError<CoreErrors>& error)
+        {
+            int capacityAmount = error.GetErrorType() == CoreErrors::REQUEST_TIMEOUT ? TIMEOUT_RETRY_COST : RETRY_COST;
+            ReleaseRetryQuota(capacityAmount);
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/SpecifiedRetryableErrorsRetryStrategy.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/SpecifiedRetryableErrorsRetryStrategy.cpp
new file mode 100644
index 0000000000..ec4e373304
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/client/SpecifiedRetryableErrorsRetryStrategy.cpp
@@ -0,0 +1,28 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/client/SpecifiedRetryableErrorsRetryStrategy.h>
+
+#include <aws/core/client/AWSError.h>
+
+using namespace Aws;
+using namespace Aws::Client;
+
+bool SpecifiedRetryableErrorsRetryStrategy::ShouldRetry(const AWSError<CoreErrors>& error, long attemptedRetries) const
+{    
+    if (attemptedRetries >= m_maxRetries)
+    {
+        return false;
+    }
+    for (const auto& err: m_specifiedRetryableErrors)
+    {
+        if (error.GetExceptionName() == err)
+        {
+            return true;
+        }
+    }
+
+    return error.ShouldRetry();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/config/AWSProfileConfigLoader.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/config/AWSProfileConfigLoader.cpp
new file mode 100644
index 0000000000..9ec2e54f55
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/config/AWSProfileConfigLoader.cpp
@@ -0,0 +1,540 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/internal/AWSHttpResourceClient.h>
+#include <aws/core/auth/AWSCredentialsProvider.h>
+#include <aws/core/utils/memory/stl/AWSList.h>
+#include <aws/core/utils/memory/stl/AWSStreamFwd.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/json/JsonSerializer.h>
+#include <fstream>
+
+namespace Aws
+{
+    namespace Config
+    {
+        using namespace Aws::Utils;
+        using namespace Aws::Auth;
+
+        static const char* const CONFIG_LOADER_TAG = "Aws::Config::AWSProfileConfigLoader";
+        #ifdef _MSC_VER
+            // VS2015 compiler's bug, warning s_CoreErrorsMapper: symbol will be dynamically initialized (implementation limitation)
+            AWS_SUPPRESS_WARNING(4592,
+                static Aws::UniquePtr<ConfigAndCredentialsCacheManager> s_configManager(nullptr);
+            )
+        #else
+            static Aws::UniquePtr<ConfigAndCredentialsCacheManager> s_configManager(nullptr);
+        #endif
+
+        static const char CONFIG_CREDENTIALS_CACHE_MANAGER_TAG[] = "ConfigAndCredentialsCacheManager";
+
+        bool AWSProfileConfigLoader::Load()
+        {
+            if(LoadInternal())
+            {
+                AWS_LOGSTREAM_INFO(CONFIG_LOADER_TAG, "Successfully reloaded configuration.");
+                m_lastLoadTime = DateTime::Now();
+                AWS_LOGSTREAM_TRACE(CONFIG_LOADER_TAG, "reloaded config at "
+                        << m_lastLoadTime.ToGmtString(DateFormat::ISO_8601));
+                return true;
+            }
+
+            AWS_LOGSTREAM_INFO(CONFIG_LOADER_TAG, "Failed to reload configuration.");
+            return false;
+        }
+
+        bool AWSProfileConfigLoader::PersistProfiles(const Aws::Map<Aws::String, Profile>& profiles)
+        {
+            if(PersistInternal(profiles))
+            {
+                AWS_LOGSTREAM_INFO(CONFIG_LOADER_TAG, "Successfully persisted configuration.");
+                m_profiles = profiles;
+                m_lastLoadTime = DateTime::Now();
+                AWS_LOGSTREAM_TRACE(CONFIG_LOADER_TAG, "persisted config at "
+                        << m_lastLoadTime.ToGmtString(DateFormat::ISO_8601));
+                return true;
+            }
+
+            AWS_LOGSTREAM_WARN(CONFIG_LOADER_TAG, "Failed to persist configuration.");
+            return false;
+        }
+
+        static const char REGION_KEY[]                       = "region";
+        static const char ACCESS_KEY_ID_KEY[]                = "aws_access_key_id";
+        static const char SECRET_KEY_KEY[]                   = "aws_secret_access_key";
+        static const char SESSION_TOKEN_KEY[]                = "aws_session_token";
+        static const char ROLE_ARN_KEY[]                     = "role_arn";
+        static const char EXTERNAL_ID_KEY[]                  = "external_id";
+        static const char CREDENTIAL_PROCESS_COMMAND[]       = "credential_process";
+        static const char SOURCE_PROFILE_KEY[]               = "source_profile";
+        static const char PROFILE_PREFIX[]                   = "profile ";
+        static const char EQ                                 = '=';
+        static const char LEFT_BRACKET                       = '[';
+        static const char RIGHT_BRACKET                      = ']';
+        static const char PARSER_TAG[]                       = "Aws::Config::ConfigFileProfileFSM";
+
+        class ConfigFileProfileFSM
+        {
+        public:
+            ConfigFileProfileFSM() : m_parserState(START) {}
+
+            const Aws::Map<String, Profile>& GetProfiles() const { return m_foundProfiles; }
+
+            void ParseStream(Aws::IStream& stream)
+            {
+                static const size_t ASSUME_EMPTY_LEN = 3;
+
+                Aws::String line;
+                while(std::getline(stream, line) && m_parserState != FAILURE)
+                {
+                    if (line.empty() || line.length() < ASSUME_EMPTY_LEN)
+                    {
+                        continue;
+                    }
+
+                    auto openPos = line.find(LEFT_BRACKET);
+                    auto closePos = line.find(RIGHT_BRACKET);
+
+                    switch(m_parserState)
+                    {
+
+                    case START:
+                        if(openPos != std::string::npos && closePos != std::string::npos)
+                        {
+                            FlushProfileAndReset(line, openPos, closePos);
+                            m_parserState = PROFILE_FOUND;
+                        }
+                        break;
+
+                    //fallthrough here is intentional to reduce duplicate logic
+                    case PROFILE_KEY_VALUE_FOUND:
+                        if(openPos != std::string::npos && closePos != std::string::npos)
+                        {
+                            m_parserState = PROFILE_FOUND;
+                            FlushProfileAndReset(line, openPos, closePos);
+                            break;
+                        }
+                        // fall through
+                    case PROFILE_FOUND:
+                    {
+                        auto equalsPos = line.find(EQ);
+                        if (equalsPos != std::string::npos)
+                        {
+                            auto key = line.substr(0, equalsPos);
+                            auto value = line.substr(equalsPos + 1);
+                            m_profileKeyValuePairs[StringUtils::Trim(key.c_str())] =
+                                    StringUtils::Trim(value.c_str());
+                            m_parserState = PROFILE_KEY_VALUE_FOUND;
+                        }
+
+                        break;
+                    }
+                    default:
+                        m_parserState = FAILURE;
+                        break;
+                    }
+                }
+
+                FlushProfileAndReset(line, std::string::npos, std::string::npos);
+            }
+
+        private:
+
+            void FlushProfileAndReset(Aws::String& line, size_t openPos, size_t closePos)
+            {
+                if(!m_currentWorkingProfile.empty() && !m_profileKeyValuePairs.empty())
+                {
+                    Profile profile;
+                    profile.SetName(m_currentWorkingProfile);
+
+                    auto regionIter = m_profileKeyValuePairs.find(REGION_KEY);
+                    if (regionIter != m_profileKeyValuePairs.end())
+                    {
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found region " << regionIter->second);
+                        profile.SetRegion(regionIter->second);
+                    }
+
+                    auto accessKeyIdIter = m_profileKeyValuePairs.find(ACCESS_KEY_ID_KEY);
+                    Aws::String accessKey, secretKey, sessionToken;
+                    if (accessKeyIdIter != m_profileKeyValuePairs.end())
+                    {
+                        accessKey = accessKeyIdIter->second;
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found access key " << accessKey);
+
+                        auto secretAccessKeyIter = m_profileKeyValuePairs.find(SECRET_KEY_KEY);
+                        auto sessionTokenIter = m_profileKeyValuePairs.find(SESSION_TOKEN_KEY);
+                        if (secretAccessKeyIter != m_profileKeyValuePairs.end())
+                        {
+                            secretKey = secretAccessKeyIter->second;
+                        }
+                        else
+                        {
+                            AWS_LOGSTREAM_ERROR(PARSER_TAG, "No secret access key found even though an access key was specified. This will cause all signed AWS calls to fail.");
+                        }
+
+                        if (sessionTokenIter != m_profileKeyValuePairs.end())
+                        {
+                            sessionToken = sessionTokenIter->second;
+                        }
+
+                        profile.SetCredentials(Aws::Auth::AWSCredentials(accessKey, secretKey, sessionToken));
+                    }
+
+                    auto assumeRoleArnIter = m_profileKeyValuePairs.find(ROLE_ARN_KEY);
+                    if (assumeRoleArnIter != m_profileKeyValuePairs.end())
+                    {
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found role arn " << assumeRoleArnIter->second);
+                        profile.SetRoleArn(assumeRoleArnIter->second);
+                    }
+
+                    auto externalIdIter = m_profileKeyValuePairs.find(EXTERNAL_ID_KEY);
+                    if (externalIdIter != m_profileKeyValuePairs.end())
+                    {
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found external id " << externalIdIter->second);
+                        profile.SetExternalId(externalIdIter->second);
+                    }
+
+                    auto sourceProfileIter = m_profileKeyValuePairs.find(SOURCE_PROFILE_KEY);
+                    if (sourceProfileIter != m_profileKeyValuePairs.end())
+                    {
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found source profile " << sourceProfileIter->second);
+                        profile.SetSourceProfile(sourceProfileIter->second);
+                    }
+
+                    auto credentialProcessIter = m_profileKeyValuePairs.find(CREDENTIAL_PROCESS_COMMAND);
+                    if (credentialProcessIter != m_profileKeyValuePairs.end())
+                    {
+                        AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found credential process " << credentialProcessIter->second);
+                        profile.SetCredentialProcess(credentialProcessIter->second);
+                    }
+                    profile.SetAllKeyValPairs(m_profileKeyValuePairs);
+
+                    m_foundProfiles[profile.GetName()] = std::move(profile);
+                    m_currentWorkingProfile.clear();
+                    m_profileKeyValuePairs.clear();
+                }
+
+                if(!line.empty() && openPos != std::string::npos && closePos != std::string::npos)
+                {
+                    m_currentWorkingProfile = StringUtils::Trim(line.substr(openPos + 1, closePos - openPos - 1).c_str());
+                    StringUtils::Replace(m_currentWorkingProfile, PROFILE_PREFIX, "");
+                    AWS_LOGSTREAM_DEBUG(PARSER_TAG, "found profile " << m_currentWorkingProfile);
+                }
+            }
+
+            enum State
+            {
+                START = 0,
+                PROFILE_FOUND,
+                PROFILE_KEY_VALUE_FOUND,
+                FAILURE
+            };
+
+            Aws::String m_currentWorkingProfile;
+            Aws::Map<String, String> m_profileKeyValuePairs;
+            State m_parserState;
+            Aws::Map<String, Profile> m_foundProfiles;
+        };
+
+        static const char* const CONFIG_FILE_LOADER = "Aws::Config::AWSConfigFileProfileConfigLoader";
+
+        AWSConfigFileProfileConfigLoader::AWSConfigFileProfileConfigLoader(const Aws::String& fileName, bool useProfilePrefix) :
+                m_fileName(fileName), m_useProfilePrefix(useProfilePrefix)
+        {
+            AWS_LOGSTREAM_INFO(CONFIG_FILE_LOADER, "Initializing config loader against fileName "
+                    << fileName << " and using profilePrefix = " << useProfilePrefix);
+        }
+
+        bool AWSConfigFileProfileConfigLoader::LoadInternal()
+        {
+            m_profiles.clear();
+
+            Aws::IFStream inputFile(m_fileName.c_str());
+            if(inputFile)
+            {
+                ConfigFileProfileFSM parser;
+                parser.ParseStream(inputFile);
+                m_profiles = parser.GetProfiles();
+                return m_profiles.size() > 0;
+            }
+
+            AWS_LOGSTREAM_INFO(CONFIG_FILE_LOADER, "Unable to open config file " << m_fileName << " for reading.");
+
+            return false;
+        }
+
+        bool AWSConfigFileProfileConfigLoader::PersistInternal(const Aws::Map<Aws::String, Profile>& profiles)
+        {
+            Aws::OFStream outputFile(m_fileName.c_str(), std::ios_base::out | std::ios_base::trunc);
+            if(outputFile)
+            {
+                for(auto& profile : profiles)
+                {
+                    Aws::String prefix = m_useProfilePrefix ? PROFILE_PREFIX : "";
+
+                    AWS_LOGSTREAM_DEBUG(CONFIG_FILE_LOADER, "Writing profile " << profile.first << " to disk.");
+
+                    outputFile << LEFT_BRACKET << prefix << profile.second.GetName() << RIGHT_BRACKET << std::endl;
+                    const Aws::Auth::AWSCredentials& credentials = profile.second.GetCredentials();
+                    outputFile << ACCESS_KEY_ID_KEY << EQ << credentials.GetAWSAccessKeyId() << std::endl;
+                    outputFile << SECRET_KEY_KEY << EQ << credentials.GetAWSSecretKey() << std::endl;
+
+                    if(!credentials.GetSessionToken().empty())
+                    {
+                        outputFile << SESSION_TOKEN_KEY << EQ << credentials.GetSessionToken() << std::endl;
+                    }
+
+                    if(!profile.second.GetRegion().empty())
+                    {
+                        outputFile << REGION_KEY << EQ << profile.second.GetRegion() << std::endl;
+                    }
+
+                    if(!profile.second.GetRoleArn().empty())
+                    {
+                        outputFile << ROLE_ARN_KEY << EQ << profile.second.GetRoleArn() << std::endl;
+                    }
+
+                    if(!profile.second.GetSourceProfile().empty())
+                    {
+                        outputFile << SOURCE_PROFILE_KEY << EQ << profile.second.GetSourceProfile() << std::endl;
+                    }
+
+                    outputFile << std::endl;
+                }
+
+                AWS_LOGSTREAM_INFO(CONFIG_FILE_LOADER, "Profiles written to config file " << m_fileName);
+
+                return true;
+            }
+
+            AWS_LOGSTREAM_WARN(CONFIG_FILE_LOADER, "Unable to open config file " << m_fileName << " for writing.");
+
+            return false;
+        }
+
+        static const char* const EC2_INSTANCE_PROFILE_LOG_TAG = "Aws::Config::EC2InstanceProfileConfigLoader";
+
+        EC2InstanceProfileConfigLoader::EC2InstanceProfileConfigLoader(const std::shared_ptr<Aws::Internal::EC2MetadataClient>& client)
+            : m_ec2metadataClient(client == nullptr ? Aws::MakeShared<Aws::Internal::EC2MetadataClient>(EC2_INSTANCE_PROFILE_LOG_TAG) : client)
+        {
+        }
+
+        bool EC2InstanceProfileConfigLoader::LoadInternal()
+        {
+            auto credentialsStr = m_ec2metadataClient->GetDefaultCredentialsSecurely();
+            if(credentialsStr.empty()) return false;
+
+            Json::JsonValue credentialsDoc(credentialsStr);
+            if (!credentialsDoc.WasParseSuccessful())
+            {
+                AWS_LOGSTREAM_ERROR(EC2_INSTANCE_PROFILE_LOG_TAG,
+                        "Failed to parse output from EC2MetadataService.");
+                return false;
+            }
+            const char* accessKeyId = "AccessKeyId";
+            const char* secretAccessKey = "SecretAccessKey";
+            Aws::String accessKey, secretKey, token;
+
+            auto credentialsView = credentialsDoc.View();
+            accessKey = credentialsView.GetString(accessKeyId);
+            AWS_LOGSTREAM_INFO(EC2_INSTANCE_PROFILE_LOG_TAG,
+                    "Successfully pulled credentials from metadata service with access key " << accessKey);
+
+            secretKey = credentialsView.GetString(secretAccessKey);
+            token = credentialsView.GetString("Token");
+
+            auto region = m_ec2metadataClient->GetCurrentRegion();
+
+            Profile profile;
+            profile.SetCredentials(AWSCredentials(accessKey, secretKey, token));
+            profile.SetRegion(region);
+            profile.SetName(INSTANCE_PROFILE_KEY);
+
+            m_profiles[INSTANCE_PROFILE_KEY] = profile;
+
+            return true;
+        }
+
+        ConfigAndCredentialsCacheManager::ConfigAndCredentialsCacheManager() :
+            m_credentialsFileLoader(Aws::Auth::ProfileConfigFileAWSCredentialsProvider::GetCredentialsProfileFilename()),
+            m_configFileLoader(Aws::Auth::GetConfigProfileFilename(), true/*use profile prefix*/)
+        {
+            ReloadCredentialsFile();
+            ReloadConfigFile();
+        }
+
+        void ConfigAndCredentialsCacheManager::ReloadConfigFile()
+        {
+            Aws::Utils::Threading::WriterLockGuard guard(m_configLock);
+            m_configFileLoader.SetFileName(Aws::Auth::GetConfigProfileFilename());
+            m_configFileLoader.Load();
+        }
+
+        void ConfigAndCredentialsCacheManager::ReloadCredentialsFile()
+        {
+            Aws::Utils::Threading::WriterLockGuard guard(m_credentialsLock);
+            m_credentialsFileLoader.SetFileName(Aws::Auth::ProfileConfigFileAWSCredentialsProvider::GetCredentialsProfileFilename());
+            m_credentialsFileLoader.Load();
+        }
+
+        bool ConfigAndCredentialsCacheManager::HasConfigProfile(const Aws::String& profileName) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_configLock);
+            return (m_configFileLoader.GetProfiles().count(profileName) == 1);
+        }
+
+        Aws::Config::Profile ConfigAndCredentialsCacheManager::GetConfigProfile(const Aws::String& profileName) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_configLock);
+            const auto& profiles = m_configFileLoader.GetProfiles();
+            const auto &iter = profiles.find(profileName);
+            if (iter == profiles.end())
+            {
+                return {};
+            }
+            return iter->second;
+        }
+
+        Aws::Map<Aws::String, Aws::Config::Profile> ConfigAndCredentialsCacheManager::GetConfigProfiles() const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_configLock);
+            return m_configFileLoader.GetProfiles();
+        }
+
+        Aws::String ConfigAndCredentialsCacheManager::GetConfig(const Aws::String& profileName, const Aws::String& key) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_configLock);
+            const auto& profiles = m_configFileLoader.GetProfiles();
+            const auto &iter = profiles.find(profileName);
+            if (iter == profiles.end())
+            {
+                return {};
+            }
+            return iter->second.GetValue(key);
+        }
+
+        bool ConfigAndCredentialsCacheManager::HasCredentialsProfile(const Aws::String& profileName) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_credentialsLock);
+            return (m_credentialsFileLoader.GetProfiles().count(profileName) == 1);
+        }
+
+        Aws::Config::Profile ConfigAndCredentialsCacheManager::GetCredentialsProfile(const Aws::String& profileName) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_credentialsLock);
+            const auto &profiles = m_credentialsFileLoader.GetProfiles();
+            const auto &iter = profiles.find(profileName);
+            if (iter == profiles.end())
+            {
+                return {};
+            }
+            return iter->second;
+        }
+
+        Aws::Map<Aws::String, Aws::Config::Profile> ConfigAndCredentialsCacheManager::GetCredentialsProfiles() const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_credentialsLock);
+            return m_credentialsFileLoader.GetProfiles();
+        }
+
+        Aws::Auth::AWSCredentials ConfigAndCredentialsCacheManager::GetCredentials(const Aws::String& profileName) const
+        {
+            Aws::Utils::Threading::ReaderLockGuard guard(m_credentialsLock);
+            const auto& profiles = m_credentialsFileLoader.GetProfiles();
+            const auto &iter = profiles.find(profileName);
+            if (iter == profiles.end())
+            {
+                return {};
+            }
+            return iter->second.GetCredentials();
+        }
+
+        void InitConfigAndCredentialsCacheManager()
+        {
+            if (s_configManager)
+            {
+                return;
+            }
+            s_configManager = Aws::MakeUnique<ConfigAndCredentialsCacheManager>(CONFIG_CREDENTIALS_CACHE_MANAGER_TAG);
+        }
+
+        void CleanupConfigAndCredentialsCacheManager()
+        {
+            if (!s_configManager)
+            {
+                return;
+            }
+            s_configManager = nullptr;
+        }
+
+        void ReloadCachedConfigFile()
+        {
+            assert(s_configManager);
+            s_configManager->ReloadConfigFile();
+        }
+
+        void ReloadCachedCredentialsFile()
+        {
+            assert(s_configManager);
+            s_configManager->ReloadCredentialsFile();
+        }
+
+        bool HasCachedConfigProfile(const Aws::String& profileName)
+        {
+            assert(s_configManager);
+            return s_configManager->HasConfigProfile(profileName);
+        }
+
+        Aws::Config::Profile GetCachedConfigProfile(const Aws::String& profileName)
+        {
+            assert(s_configManager);
+            return s_configManager->GetConfigProfile(profileName);
+        }
+
+        Aws::Map<Aws::String, Aws::Config::Profile> GetCachedConfigProfiles()
+        {
+            assert(s_configManager);
+            return s_configManager->GetConfigProfiles();
+        }
+
+        Aws::String GetCachedConfigValue(const Aws::String &profileName, const Aws::String &key)
+        {
+            assert(s_configManager);
+            return s_configManager->GetConfig(profileName, key);
+        }
+
+        Aws::String GetCachedConfigValue(const Aws::String &key)
+        {
+            assert(s_configManager);
+            return s_configManager->GetConfig(Aws::Auth::GetConfigProfileName(), key);
+        }
+
+        bool HasCachedCredentialsProfile(const Aws::String& profileName)
+        {
+            assert(s_configManager);
+            return s_configManager->HasCredentialsProfile(profileName);
+        }
+
+        Aws::Config::Profile GetCachedCredentialsProfile(const Aws::String &profileName)
+        {
+            assert(s_configManager);
+            return s_configManager->GetCredentialsProfile(profileName);
+        }
+
+        Aws::Map<Aws::String, Aws::Config::Profile> GetCachedCredentialsProfiles()
+        {
+            assert(s_configManager);
+            return s_configManager->GetCredentialsProfiles();
+        }
+
+        Aws::Auth::AWSCredentials GetCachedCredentials(const Aws::String &profileName)
+        {
+            assert(s_configManager);
+            return s_configManager->GetCredentials(profileName);
+        }
+    } // Config namespace
+} // Aws namespace
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/cjson/cJSON.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/cjson/cJSON.cpp
new file mode 100644
index 0000000000..2525976334
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/cjson/cJSON.cpp
@@ -0,0 +1,2983 @@
+/*
+  Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+/* cJSON */
+/* JSON parser in C. */
+
+/* disable warnings about old C89 functions in MSVC */
+#if !defined(_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER)
+#define _CRT_SECURE_NO_DEPRECATE
+#endif
+
+#ifdef __GNUC__
+#pragma GCC visibility push(default)
+#endif
+#if defined(_MSC_VER)
+#pragma warning (push)
+/* disable warning about single line comments in system headers */
+#pragma warning (disable : 4001)
+#endif
+
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <ctype.h>
+
+#ifdef ENABLE_LOCALES
+#include <locale.h>
+#endif
+
+#if defined(_MSC_VER)
+#pragma warning (pop)
+#endif
+#ifdef __GNUC__
+#pragma GCC visibility pop
+#endif
+
+#include <aws/core/external/cjson/cJSON.h>
+
+/* define our own boolean type */
+// #define true ((cJSON_bool)1)
+// #define false ((cJSON_bool)0)
+
+typedef struct {
+    const unsigned char *json;
+    size_t position;
+} error;
+static error global_error = { NULL, 0 };
+
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void)
+{
+    return (const char*) (global_error.json + global_error.position);
+}
+
+CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item) {
+    if (!cJSON_IsString(item)) {
+        return NULL;
+    }
+
+    return item->valuestring;
+}
+
+/* This is a safeguard to prevent copy-pasters from using incompatible C and header files */
+#if (CJSON_VERSION_MAJOR != 1) || (CJSON_VERSION_MINOR != 7) || (CJSON_VERSION_PATCH != 7)
+    #error cJSON.h and cJSON.c have different versions. Make sure that both have the same.
+#endif
+
+CJSON_PUBLIC(const char*) cJSON_Version(void)
+{
+    static char version[15];
+    sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH);
+
+    return version;
+}
+
+/* Case insensitive string comparison, doesn't consider two NULL pointers equal though */
+static int case_insensitive_strcmp(const unsigned char *string1, const unsigned char *string2)
+{
+    if ((string1 == NULL) || (string2 == NULL))
+    {
+        return 1;
+    }
+
+    if (string1 == string2)
+    {
+        return 0;
+    }
+
+    for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
+    {
+        if (*string1 == '\0')
+        {
+            return 0;
+        }
+    }
+
+    return tolower(*string1) - tolower(*string2);
+}
+
+typedef struct internal_hooks
+{
+    void *(*allocate)(size_t size);
+    void (*deallocate)(void *pointer);
+    void *(*reallocate)(void *pointer, size_t size);
+} internal_hooks;
+
+#if defined(_MSC_VER)
+/* work around MSVC error C2322: '...' address of dillimport '...' is not static */
+static void *internal_malloc(size_t size)
+{
+    return malloc(size);
+}
+static void internal_free(void *pointer)
+{
+    free(pointer);
+}
+static void *internal_realloc(void *pointer, size_t size)
+{
+    return realloc(pointer, size);
+}
+#else
+#define internal_malloc malloc
+#define internal_free free
+#define internal_realloc realloc
+#endif
+
+static internal_hooks global_hooks = { internal_malloc, internal_free, internal_realloc };
+
+static unsigned char* cJSON_strdup(const unsigned char* string, const internal_hooks * const hooks)
+{
+    size_t length = 0;
+    unsigned char *copy = NULL;
+
+    if (string == NULL)
+    {
+        return NULL;
+    }
+
+    length = strlen((const char*)string) + sizeof("");
+    copy = (unsigned char*)hooks->allocate(length);
+    if (copy == NULL)
+    {
+        return NULL;
+    }
+    memcpy(copy, string, length);
+
+    return copy;
+}
+
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks)
+{
+    if (hooks == NULL)
+    {
+        /* Reset hooks */
+        global_hooks.allocate = malloc;
+        global_hooks.deallocate = free;
+        global_hooks.reallocate = realloc;
+        return;
+    }
+
+    global_hooks.allocate = malloc;
+    if (hooks->malloc_fn != NULL)
+    {
+        global_hooks.allocate = hooks->malloc_fn;
+    }
+
+    global_hooks.deallocate = free;
+    if (hooks->free_fn != NULL)
+    {
+        global_hooks.deallocate = hooks->free_fn;
+    }
+
+    /* use realloc only if both free and malloc are used */
+    global_hooks.reallocate = NULL;
+    if ((global_hooks.allocate == malloc) && (global_hooks.deallocate == free))
+    {
+        global_hooks.reallocate = realloc;
+    }
+}
+
+/* Internal constructor. */
+static cJSON *cJSON_New_Item(const internal_hooks * const hooks)
+{
+    cJSON* node = (cJSON*)hooks->allocate(sizeof(cJSON));
+    if (node)
+    {
+        memset(node, '\0', sizeof(cJSON));
+    }
+
+    return node;
+}
+
+/* Delete a cJSON structure. */
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *item)
+{
+    cJSON *next = NULL;
+    while (item != NULL)
+    {
+        next = item->next;
+        if (!(item->type & cJSON_IsReference) && (item->child != NULL))
+        {
+            cJSON_Delete(item->child);
+        }
+        if (!(item->type & cJSON_IsReference) && (item->valuestring != NULL))
+        {
+            global_hooks.deallocate(item->valuestring);
+        }
+        if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
+        {
+            global_hooks.deallocate(item->string);
+        }
+        global_hooks.deallocate(item);
+        item = next;
+    }
+}
+
+/* get the decimal point character of the current locale */
+static unsigned char get_decimal_point(void)
+{
+#ifdef ENABLE_LOCALES
+    struct lconv *lconv = localeconv();
+    return (unsigned char) lconv->decimal_point[0];
+#else
+    return '.';
+#endif
+}
+
+typedef struct
+{
+    const unsigned char *content;
+    size_t length;
+    size_t offset;
+    size_t depth; /* How deeply nested (in arrays/objects) is the input at the current offset. */
+    internal_hooks hooks;
+} parse_buffer;
+
+/* check if the given size is left to read in a given parse buffer (starting with 1) */
+#define can_read(buffer, size) ((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))
+/* check if the buffer can be accessed at the given index (starting with 0) */
+#define can_access_at_index(buffer, index) ((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))
+#define cannot_access_at_index(buffer, index) (!can_access_at_index(buffer, index))
+/* get a pointer to the buffer at the position */
+#define buffer_at_offset(buffer) ((buffer)->content + (buffer)->offset)
+
+/* Parse the input text to generate a number, and populate the result into item. */
+static cJSON_bool parse_number(cJSON * const item, parse_buffer * const input_buffer)
+{
+    double number = 0;
+    unsigned char *after_end = NULL;
+    unsigned char number_c_string[64];
+    unsigned char decimal_point = get_decimal_point();
+    bool isInteger = true;
+    size_t i = 0;
+
+    if ((input_buffer == NULL) || (input_buffer->content == NULL))
+    {
+        return false;
+    }
+
+    /* copy the number into a temporary buffer and replace '.' with the decimal point
+     * of the current locale (for strtod)
+     * This also takes care of '\0' not necessarily being available for marking the end of the input */
+    for (i = 0; (i < (sizeof(number_c_string) - 1)) && can_access_at_index(input_buffer, i); i++)
+    {
+        switch (buffer_at_offset(input_buffer)[i])
+        {
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+            case '+':
+            case '-':
+                number_c_string[i] = buffer_at_offset(input_buffer)[i];
+                break;
+            case 'e':
+            case 'E':
+                number_c_string[i] = buffer_at_offset(input_buffer)[i];
+                isInteger = false;
+                break;
+
+            case '.':
+                number_c_string[i] = decimal_point;
+                isInteger = false;
+                break;
+
+            default:
+                goto loop_end;
+        }
+    }
+loop_end:
+    number_c_string[i] = '\0';
+
+    number = strtod((const char*)number_c_string, (char**)&after_end);
+    if (number_c_string == after_end)
+    {
+        return false; /* parse_error */
+    }
+
+    item->valuedouble = number;
+    // For integer which is out of the range of [INT_MIN, INT_MAX], it may lose precision if we cast it to double.
+    // Instead, we keep the integer literal as a string.
+    if (isInteger && (number > INT_MAX || number < INT_MIN))
+    {
+        item->valuestring = (char*)cJSON_strdup(number_c_string, &global_hooks);
+    }
+
+    /* use saturation in case of overflow */
+    if (number >= INT_MAX)
+    {
+        item->valueint = INT_MAX;
+    }
+    else if (number <= INT_MIN)
+    {
+        item->valueint = INT_MIN;
+    }
+    else
+    {
+        item->valueint = (int)number;
+    }
+
+    item->type = cJSON_Number;
+
+    input_buffer->offset += (size_t)(after_end - number_c_string);
+    return true;
+}
+
+/* don't ask me, but the original cJSON_SetNumberValue returns an integer or double */
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number)
+{
+    if (number >= INT_MAX)
+    {
+        object->valueint = INT_MAX;
+    }
+    else if (number <= INT_MIN)
+    {
+        object->valueint = INT_MIN;
+    }
+    else
+    {
+        object->valueint = (int)number;
+    }
+
+    return object->valuedouble = number;
+}
+
+typedef struct
+{
+    unsigned char *buffer;
+    size_t length;
+    size_t offset;
+    size_t depth; /* current nesting depth (for formatted printing) */
+    cJSON_bool noalloc;
+    cJSON_bool format; /* is this print a formatted print */
+    internal_hooks hooks;
+} printbuffer;
+
+/* realloc printbuffer if necessary to have at least "needed" bytes more */
+static unsigned char* ensure(printbuffer * const p, size_t needed)
+{
+    unsigned char *newbuffer = NULL;
+    size_t newsize = 0;
+
+    if ((p == NULL) || (p->buffer == NULL))
+    {
+        return NULL;
+    }
+
+    if ((p->length > 0) && (p->offset >= p->length))
+    {
+        /* make sure that offset is valid */
+        return NULL;
+    }
+
+    if (needed > INT_MAX)
+    {
+        /* sizes bigger than INT_MAX are currently not supported */
+        return NULL;
+    }
+
+    needed += p->offset + 1;
+    if (needed <= p->length)
+    {
+        return p->buffer + p->offset;
+    }
+
+    if (p->noalloc) {
+        return NULL;
+    }
+
+    /* calculate new buffer size */
+    if (needed > (INT_MAX / 2))
+    {
+        /* overflow of int, use INT_MAX if possible */
+        if (needed <= INT_MAX)
+        {
+            newsize = INT_MAX;
+        }
+        else
+        {
+            return NULL;
+        }
+    }
+    else
+    {
+        newsize = needed * 2;
+    }
+
+    if (p->hooks.reallocate != NULL)
+    {
+        /* reallocate with realloc if available */
+        newbuffer = (unsigned char*)p->hooks.reallocate(p->buffer, newsize);
+        if (newbuffer == NULL)
+        {
+            p->hooks.deallocate(p->buffer);
+            p->length = 0;
+            p->buffer = NULL;
+
+            return NULL;
+        }
+    }
+    else
+    {
+        /* otherwise reallocate manually */
+        newbuffer = (unsigned char*)p->hooks.allocate(newsize);
+        if (!newbuffer)
+        {
+            p->hooks.deallocate(p->buffer);
+            p->length = 0;
+            p->buffer = NULL;
+
+            return NULL;
+        }
+        if (newbuffer)
+        {
+            memcpy(newbuffer, p->buffer, p->offset + 1);
+        }
+        p->hooks.deallocate(p->buffer);
+    }
+    p->length = newsize;
+    p->buffer = newbuffer;
+
+    return newbuffer + p->offset;
+}
+
+/* calculate the new length of the string in a printbuffer and update the offset */
+static void update_offset(printbuffer * const buffer)
+{
+    const unsigned char *buffer_pointer = NULL;
+    if ((buffer == NULL) || (buffer->buffer == NULL))
+    {
+        return;
+    }
+    buffer_pointer = buffer->buffer + buffer->offset;
+
+    buffer->offset += strlen((const char*)buffer_pointer);
+}
+
+/* Render the number nicely from the given item into a string. */
+static cJSON_bool print_number(const cJSON * const item, printbuffer * const output_buffer)
+{
+    unsigned char *output_pointer = NULL;
+    double d = item->valuedouble;
+    int length = 0;
+    size_t i = 0;
+    unsigned char number_buffer[26]; /* temporary buffer to print the number into */
+    unsigned char decimal_point = get_decimal_point();
+    double test;
+
+    if (output_buffer == NULL)
+    {
+        return false;
+    }
+
+    /* For integer which is out of the range of [INT_MIN, INT_MAX], valuestring is an integer literal. */
+    if (item->valuestring)
+    {
+        length = sprintf((char*)number_buffer, "%s", item->valuestring);
+    }
+    /* This checks for NaN and Infinity */
+    else if ((d * 0) != 0)
+    {
+        length = sprintf((char*)number_buffer, "null");
+    }
+    else
+    {
+        /* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */
+        length = sprintf((char*)number_buffer, "%1.15g", d);
+
+        /* Check whether the original double can be recovered */
+        if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || ((double)test != d))
+        {
+            /* If not, print with 17 decimal places of precision */
+            length = sprintf((char*)number_buffer, "%1.17g", d);
+        }
+    }
+
+    /* sprintf failed or buffer overrun occurred */
+    if ((length < 0) || (length > (int)(sizeof(number_buffer) - 1)))
+    {
+        return false;
+    }
+
+    /* reserve appropriate space in the output */
+    output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
+    if (output_pointer == NULL)
+    {
+        return false;
+    }
+
+    /* copy the printed number to the output and replace locale
+     * dependent decimal point with '.' */
+    for (i = 0; i < ((size_t)length); i++)
+    {
+        if (number_buffer[i] == decimal_point)
+        {
+            output_pointer[i] = '.';
+            continue;
+        }
+
+        output_pointer[i] = number_buffer[i];
+    }
+    output_pointer[i] = '\0';
+
+    output_buffer->offset += (size_t)length;
+
+    return true;
+}
+
+/* parse 4 digit hexadecimal number */
+static unsigned parse_hex4(const unsigned char * const input)
+{
+    unsigned int h = 0;
+    size_t i = 0;
+
+    for (i = 0; i < 4; i++)
+    {
+        /* parse digit */
+        if ((input[i] >= '0') && (input[i] <= '9'))
+        {
+            h += (unsigned int) input[i] - '0';
+        }
+        else if ((input[i] >= 'A') && (input[i] <= 'F'))
+        {
+            h += (unsigned int) 10 + input[i] - 'A';
+        }
+        else if ((input[i] >= 'a') && (input[i] <= 'f'))
+        {
+            h += (unsigned int) 10 + input[i] - 'a';
+        }
+        else /* invalid */
+        {
+            return 0;
+        }
+
+        if (i < 3)
+        {
+            /* shift left to make place for the next nibble */
+            h = h << 4;
+        }
+    }
+
+    return h;
+}
+
+/* converts a UTF-16 literal to UTF-8
+ * A literal can be one or two sequences of the form \uXXXX */
+static unsigned char utf16_literal_to_utf8(const unsigned char * const input_pointer, const unsigned char * const input_end, unsigned char **output_pointer)
+{
+    long unsigned int codepoint = 0;
+    unsigned int first_code = 0;
+    const unsigned char *first_sequence = input_pointer;
+    unsigned char utf8_length = 0;
+    unsigned char utf8_position = 0;
+    unsigned char sequence_length = 0;
+    unsigned char first_byte_mark = 0;
+
+    if ((input_end - first_sequence) < 6)
+    {
+        /* input ends unexpectedly */
+        goto fail;
+    }
+
+    /* get the first utf16 sequence */
+    first_code = parse_hex4(first_sequence + 2);
+
+    /* check that the code is valid */
+    if (((first_code >= 0xDC00) && (first_code <= 0xDFFF)))
+    {
+        goto fail;
+    }
+
+    /* UTF16 surrogate pair */
+    if ((first_code >= 0xD800) && (first_code <= 0xDBFF))
+    {
+        const unsigned char *second_sequence = first_sequence + 6;
+        unsigned int second_code = 0;
+        sequence_length = 12; /* \uXXXX\uXXXX */
+
+        if ((input_end - second_sequence) < 6)
+        {
+            /* input ends unexpectedly */
+            goto fail;
+        }
+
+        if ((second_sequence[0] != '\\') || (second_sequence[1] != 'u'))
+        {
+            /* missing second half of the surrogate pair */
+            goto fail;
+        }
+
+        /* get the second utf16 sequence */
+        second_code = parse_hex4(second_sequence + 2);
+        /* check that the code is valid */
+        if ((second_code < 0xDC00) || (second_code > 0xDFFF))
+        {
+            /* invalid second half of the surrogate pair */
+            goto fail;
+        }
+
+
+        /* calculate the unicode codepoint from the surrogate pair */
+        codepoint = 0x10000 + (((first_code & 0x3FF) << 10) | (second_code & 0x3FF));
+    }
+    else
+    {
+        sequence_length = 6; /* \uXXXX */
+        codepoint = first_code;
+    }
+
+    /* encode as UTF-8
+     * takes at maximum 4 bytes to encode:
+     * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
+    if (codepoint < 0x80)
+    {
+        /* normal ascii, encoding 0xxxxxxx */
+        utf8_length = 1;
+    }
+    else if (codepoint < 0x800)
+    {
+        /* two bytes, encoding 110xxxxx 10xxxxxx */
+        utf8_length = 2;
+        first_byte_mark = 0xC0; /* 11000000 */
+    }
+    else if (codepoint < 0x10000)
+    {
+        /* three bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx */
+        utf8_length = 3;
+        first_byte_mark = 0xE0; /* 11100000 */
+    }
+    else if (codepoint <= 0x10FFFF)
+    {
+        /* four bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx 10xxxxxx */
+        utf8_length = 4;
+        first_byte_mark = 0xF0; /* 11110000 */
+    }
+    else
+    {
+        /* invalid unicode codepoint */
+        goto fail;
+    }
+
+    /* encode as utf8 */
+    for (utf8_position = (unsigned char)(utf8_length - 1); utf8_position > 0; utf8_position--)
+    {
+        /* 10xxxxxx */
+        (*output_pointer)[utf8_position] = (unsigned char)((codepoint | 0x80) & 0xBF);
+        codepoint >>= 6;
+    }
+    /* encode first byte */
+    if (utf8_length > 1)
+    {
+        (*output_pointer)[0] = (unsigned char)((codepoint | first_byte_mark) & 0xFF);
+    }
+    else
+    {
+        (*output_pointer)[0] = (unsigned char)(codepoint & 0x7F);
+    }
+
+    *output_pointer += utf8_length;
+
+    return sequence_length;
+
+fail:
+    return 0;
+}
+
+/* Parse the input text into an unescaped cinput, and populate item. */
+static cJSON_bool parse_string(cJSON * const item, parse_buffer * const input_buffer)
+{
+    const unsigned char *input_pointer = buffer_at_offset(input_buffer) + 1;
+    const unsigned char *input_end = buffer_at_offset(input_buffer) + 1;
+    unsigned char *output_pointer = NULL;
+    unsigned char *output = NULL;
+
+    /* not a string */
+    if (buffer_at_offset(input_buffer)[0] != '\"')
+    {
+        goto fail;
+    }
+
+    {
+        /* calculate approximate size of the output (overestimate) */
+        size_t allocation_length = 0;
+        size_t skipped_bytes = 0;
+        while (((size_t)(input_end - input_buffer->content) < input_buffer->length) && (*input_end != '\"'))
+        {
+            /* is escape sequence */
+            if (input_end[0] == '\\')
+            {
+                if ((size_t)(input_end + 1 - input_buffer->content) >= input_buffer->length)
+                {
+                    /* prevent buffer overflow when last input character is a backslash */
+                    goto fail;
+                }
+                skipped_bytes++;
+                input_end++;
+            }
+            input_end++;
+        }
+        if (((size_t)(input_end - input_buffer->content) >= input_buffer->length) || (*input_end != '\"'))
+        {
+            goto fail; /* string ended unexpectedly */
+        }
+
+        /* This is at most how much we need for the output */
+        allocation_length = (size_t) (input_end - buffer_at_offset(input_buffer)) - skipped_bytes;
+        output = (unsigned char*)input_buffer->hooks.allocate(allocation_length + sizeof(""));
+        if (output == NULL)
+        {
+            goto fail; /* allocation failure */
+        }
+    }
+
+    output_pointer = output;
+    /* loop through the string literal */
+    while (input_pointer < input_end)
+    {
+        if (*input_pointer != '\\')
+        {
+            *output_pointer++ = *input_pointer++;
+        }
+        /* escape sequence */
+        else
+        {
+            unsigned char sequence_length = 2;
+            if ((input_end - input_pointer) < 1)
+            {
+                goto fail;
+            }
+
+            switch (input_pointer[1])
+            {
+                case 'b':
+                    *output_pointer++ = '\b';
+                    break;
+                case 'f':
+                    *output_pointer++ = '\f';
+                    break;
+                case 'n':
+                    *output_pointer++ = '\n';
+                    break;
+                case 'r':
+                    *output_pointer++ = '\r';
+                    break;
+                case 't':
+                    *output_pointer++ = '\t';
+                    break;
+                case '\"':
+                case '\\':
+                case '/':
+                    *output_pointer++ = input_pointer[1];
+                    break;
+
+                /* UTF-16 literal */
+                case 'u':
+                    sequence_length = utf16_literal_to_utf8(input_pointer, input_end, &output_pointer);
+                    if (sequence_length == 0)
+                    {
+                        /* failed to convert UTF16-literal to UTF-8 */
+                        goto fail;
+                    }
+                    break;
+
+                default:
+                    goto fail;
+            }
+            input_pointer += sequence_length;
+        }
+    }
+
+    /* zero terminate the output */
+    *output_pointer = '\0';
+
+    item->type = cJSON_String;
+    item->valuestring = (char*)output;
+
+    input_buffer->offset = (size_t) (input_end - input_buffer->content);
+    input_buffer->offset++;
+
+    return true;
+
+fail:
+    if (output != NULL)
+    {
+        input_buffer->hooks.deallocate(output);
+    }
+
+    if (input_pointer != NULL)
+    {
+        input_buffer->offset = (size_t)(input_pointer - input_buffer->content);
+    }
+
+    return false;
+}
+
+/* Render the cstring provided to an escaped version that can be printed. */
+static cJSON_bool print_string_ptr(const unsigned char * const input, printbuffer * const output_buffer)
+{
+    const unsigned char *input_pointer = NULL;
+    unsigned char *output = NULL;
+    unsigned char *output_pointer = NULL;
+    size_t output_length = 0;
+    /* numbers of additional characters needed for escaping */
+    size_t escape_characters = 0;
+
+    if (output_buffer == NULL)
+    {
+        return false;
+    }
+
+    /* empty string */
+    if (input == NULL)
+    {
+        output = ensure(output_buffer, sizeof("\"\""));
+        if (output == NULL)
+        {
+            return false;
+        }
+        strcpy((char*)output, "\"\"");
+
+        return true;
+    }
+
+    /* set "flag" to 1 if something needs to be escaped */
+    for (input_pointer = input; *input_pointer; input_pointer++)
+    {
+        switch (*input_pointer)
+        {
+            case '\"':
+            case '\\':
+            case '\b':
+            case '\f':
+            case '\n':
+            case '\r':
+            case '\t':
+                /* one character escape sequence */
+                escape_characters++;
+                break;
+            default:
+                if (*input_pointer < 32)
+                {
+                    /* UTF-16 escape sequence uXXXX */
+                    escape_characters += 5;
+                }
+                break;
+        }
+    }
+    output_length = (size_t)(input_pointer - input) + escape_characters;
+
+    output = ensure(output_buffer, output_length + sizeof("\"\""));
+    if (output == NULL)
+    {
+        return false;
+    }
+
+    /* no characters have to be escaped */
+    if (escape_characters == 0)
+    {
+        output[0] = '\"';
+        memcpy(output + 1, input, output_length);
+        output[output_length + 1] = '\"';
+        output[output_length + 2] = '\0';
+
+        return true;
+    }
+
+    output[0] = '\"';
+    output_pointer = output + 1;
+    /* copy the string */
+    for (input_pointer = input; *input_pointer != '\0'; (void)input_pointer++, output_pointer++)
+    {
+        if ((*input_pointer > 31) && (*input_pointer != '\"') && (*input_pointer != '\\'))
+        {
+            /* normal character, copy */
+            *output_pointer = *input_pointer;
+        }
+        else
+        {
+            /* character needs to be escaped */
+            *output_pointer++ = '\\';
+            switch (*input_pointer)
+            {
+                case '\\':
+                    *output_pointer = '\\';
+                    break;
+                case '\"':
+                    *output_pointer = '\"';
+                    break;
+                case '\b':
+                    *output_pointer = 'b';
+                    break;
+                case '\f':
+                    *output_pointer = 'f';
+                    break;
+                case '\n':
+                    *output_pointer = 'n';
+                    break;
+                case '\r':
+                    *output_pointer = 'r';
+                    break;
+                case '\t':
+                    *output_pointer = 't';
+                    break;
+                default:
+                    /* escape and print as unicode codepoint */
+                    sprintf((char*)output_pointer, "u%04x", *input_pointer);
+                    output_pointer += 4;
+                    break;
+            }
+        }
+    }
+    output[output_length + 1] = '\"';
+    output[output_length + 2] = '\0';
+
+    return true;
+}
+
+/* Invoke print_string_ptr (which is useful) on an item. */
+static cJSON_bool print_string(const cJSON * const item, printbuffer * const p)
+{
+    return print_string_ptr((unsigned char*)item->valuestring, p);
+}
+
+/* Predeclare these prototypes. */
+static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer);
+static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer);
+static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer);
+static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer);
+static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer);
+static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer);
+
+/* Utility to jump whitespace and cr/lf */
+static parse_buffer *buffer_skip_whitespace(parse_buffer * const buffer)
+{
+    if ((buffer == NULL) || (buffer->content == NULL))
+    {
+        return NULL;
+    }
+
+    while (can_access_at_index(buffer, 0) && (buffer_at_offset(buffer)[0] <= 32))
+    {
+       buffer->offset++;
+    }
+
+    if (buffer->offset == buffer->length)
+    {
+        buffer->offset--;
+    }
+
+    return buffer;
+}
+
+/* skip the UTF-8 BOM (byte order mark) if it is at the beginning of a buffer */
+static parse_buffer *skip_utf8_bom(parse_buffer * const buffer)
+{
+    if ((buffer == NULL) || (buffer->content == NULL) || (buffer->offset != 0))
+    {
+        return NULL;
+    }
+
+    if (can_access_at_index(buffer, 4) && (strncmp((const char*)buffer_at_offset(buffer), "\xEF\xBB\xBF", 3) == 0))
+    {
+        buffer->offset += 3;
+    }
+
+    return buffer;
+}
+
+/* Parse an object - create a new root, and populate. */
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated)
+{
+    parse_buffer buffer = { 0, 0, 0, 0, { 0, 0, 0 } };
+    cJSON *item = NULL;
+
+    /* reset error position */
+    global_error.json = NULL;
+    global_error.position = 0;
+
+    if (value == NULL)
+    {
+        goto fail;
+    }
+
+    buffer.content = (const unsigned char*)value;
+    buffer.length = strlen((const char*)value) + sizeof("");
+    buffer.offset = 0;
+    buffer.hooks = global_hooks;
+
+    item = cJSON_New_Item(&global_hooks);
+    if (item == NULL) /* memory fail */
+    {
+        goto fail;
+    }
+
+    if (!parse_value(item, buffer_skip_whitespace(skip_utf8_bom(&buffer))))
+    {
+        /* parse failure. ep is set. */
+        goto fail;
+    }
+
+    /* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
+    if (require_null_terminated)
+    {
+        buffer_skip_whitespace(&buffer);
+        if ((buffer.offset >= buffer.length) || buffer_at_offset(&buffer)[0] != '\0')
+        {
+            goto fail;
+        }
+    }
+    if (return_parse_end)
+    {
+        *return_parse_end = (const char*)buffer_at_offset(&buffer);
+    }
+
+    return item;
+
+fail:
+    if (item != NULL)
+    {
+        cJSON_Delete(item);
+    }
+
+    if (value != NULL)
+    {
+        error local_error;
+        local_error.json = (const unsigned char*)value;
+        local_error.position = 0;
+
+        if (buffer.offset < buffer.length)
+        {
+            local_error.position = buffer.offset;
+        }
+        else if (buffer.length > 0)
+        {
+            local_error.position = buffer.length - 1;
+        }
+
+        if (return_parse_end != NULL)
+        {
+            *return_parse_end = (const char*)local_error.json + local_error.position;
+        }
+
+        global_error = local_error;
+    }
+
+    return NULL;
+}
+
+/* Default options for cJSON_Parse */
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value)
+{
+    return cJSON_ParseWithOpts(value, 0, 0);
+}
+
+#define cjson_min(a, b) ((a < b) ? a : b)
+
+static unsigned char *print(const cJSON * const item, cJSON_bool format, const internal_hooks * const hooks)
+{
+    static const size_t default_buffer_size = 256;
+    printbuffer buffer[1];
+    unsigned char *printed = NULL;
+
+    memset(buffer, 0, sizeof(buffer));
+
+    /* create buffer */
+    buffer->buffer = (unsigned char*) hooks->allocate(default_buffer_size);
+    buffer->length = default_buffer_size;
+    buffer->format = format;
+    buffer->hooks = *hooks;
+    if (buffer->buffer == NULL)
+    {
+        goto fail;
+    }
+
+    /* print the value */
+    if (!print_value(item, buffer))
+    {
+        goto fail;
+    }
+    update_offset(buffer);
+
+    /* check if reallocate is available */
+    if (hooks->reallocate != NULL)
+    {
+        printed = (unsigned char*) hooks->reallocate(buffer->buffer, buffer->offset + 1);
+        if (printed == NULL) {
+            goto fail;
+        }
+        buffer->buffer = NULL;
+    }
+    else /* otherwise copy the JSON over to a new buffer */
+    {
+        printed = (unsigned char*) hooks->allocate(buffer->offset + 1);
+        if (printed == NULL)
+        {
+            goto fail;
+        }
+        memcpy(printed, buffer->buffer, cjson_min(buffer->length, buffer->offset + 1));
+        printed[buffer->offset] = '\0'; /* just to be sure */
+
+        /* free the buffer */
+        hooks->deallocate(buffer->buffer);
+    }
+
+    return printed;
+
+fail:
+    if (buffer->buffer != NULL)
+    {
+        hooks->deallocate(buffer->buffer);
+    }
+
+    if (printed != NULL)
+    {
+        hooks->deallocate(printed);
+    }
+
+    return NULL;
+}
+
+/* Render a cJSON item/entity/structure to text. */
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item)
+{
+    return (char*)print(item, true, &global_hooks);
+}
+
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item)
+{
+    return (char*)print(item, false, &global_hooks);
+}
+
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt)
+{
+    printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
+
+    if (prebuffer < 0)
+    {
+        return NULL;
+    }
+
+    p.buffer = (unsigned char*)global_hooks.allocate((size_t)prebuffer);
+    if (!p.buffer)
+    {
+        return NULL;
+    }
+
+    p.length = (size_t)prebuffer;
+    p.offset = 0;
+    p.noalloc = false;
+    p.format = fmt;
+    p.hooks = global_hooks;
+
+    if (!print_value(item, &p))
+    {
+        global_hooks.deallocate(p.buffer);
+        return NULL;
+    }
+
+    return (char*)p.buffer;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const cJSON_bool fmt)
+{
+    printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
+
+    if ((len < 0) || (buf == NULL))
+    {
+        return false;
+    }
+
+    p.buffer = (unsigned char*)buf;
+    p.length = (size_t)len;
+    p.offset = 0;
+    p.noalloc = true;
+    p.format = fmt;
+    p.hooks = global_hooks;
+
+    return print_value(item, &p);
+}
+
+/* Parser core - when encountering text, process appropriately. */
+static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer)
+{
+    if ((input_buffer == NULL) || (input_buffer->content == NULL))
+    {
+        return false; /* no input */
+    }
+
+    /* parse the different types of values */
+    /* null */
+    if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "null", 4) == 0))
+    {
+        item->type = cJSON_NULL;
+        input_buffer->offset += 4;
+        return true;
+    }
+    /* false */
+    if (can_read(input_buffer, 5) && (strncmp((const char*)buffer_at_offset(input_buffer), "false", 5) == 0))
+    {
+        item->type = cJSON_False;
+        input_buffer->offset += 5;
+        return true;
+    }
+    /* true */
+    if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "true", 4) == 0))
+    {
+        item->type = cJSON_True;
+        item->valueint = 1;
+        input_buffer->offset += 4;
+        return true;
+    }
+    /* string */
+    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '\"'))
+    {
+        return parse_string(item, input_buffer);
+    }
+    /* number */
+    if (can_access_at_index(input_buffer, 0) && ((buffer_at_offset(input_buffer)[0] == '-') || ((buffer_at_offset(input_buffer)[0] >= '0') && (buffer_at_offset(input_buffer)[0] <= '9'))))
+    {
+        return parse_number(item, input_buffer);
+    }
+    /* array */
+    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '['))
+    {
+        return parse_array(item, input_buffer);
+    }
+    /* object */
+    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '{'))
+    {
+        return parse_object(item, input_buffer);
+    }
+
+    return false;
+}
+
+/* Render a value to text. */
+static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer)
+{
+    unsigned char *output = NULL;
+
+    if ((item == NULL) || (output_buffer == NULL))
+    {
+        return false;
+    }
+
+    switch ((item->type) & 0xFF)
+    {
+        case cJSON_NULL:
+            output = ensure(output_buffer, 5);
+            if (output == NULL)
+            {
+                return false;
+            }
+            strcpy((char*)output, "null");
+            return true;
+
+        case cJSON_False:
+            output = ensure(output_buffer, 6);
+            if (output == NULL)
+            {
+                return false;
+            }
+            strcpy((char*)output, "false");
+            return true;
+
+        case cJSON_True:
+            output = ensure(output_buffer, 5);
+            if (output == NULL)
+            {
+                return false;
+            }
+            strcpy((char*)output, "true");
+            return true;
+
+        case cJSON_Number:
+            return print_number(item, output_buffer);
+
+        case cJSON_Raw:
+        {
+            size_t raw_length = 0;
+            if (item->valuestring == NULL)
+            {
+                return false;
+            }
+
+            raw_length = strlen(item->valuestring) + sizeof("");
+            output = ensure(output_buffer, raw_length);
+            if (output == NULL)
+            {
+                return false;
+            }
+            memcpy(output, item->valuestring, raw_length);
+            return true;
+        }
+
+        case cJSON_String:
+            return print_string(item, output_buffer);
+
+        case cJSON_Array:
+            return print_array(item, output_buffer);
+
+        case cJSON_Object:
+            return print_object(item, output_buffer);
+
+        default:
+            return false;
+    }
+}
+
+/* Build an array from input text. */
+static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer)
+{
+    cJSON *head = NULL; /* head of the linked list */
+    cJSON *current_item = NULL;
+
+    if (input_buffer->depth >= CJSON_NESTING_LIMIT)
+    {
+        return false; /* to deeply nested */
+    }
+    input_buffer->depth++;
+
+    if (buffer_at_offset(input_buffer)[0] != '[')
+    {
+        /* not an array */
+        goto fail;
+    }
+
+    input_buffer->offset++;
+    buffer_skip_whitespace(input_buffer);
+    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ']'))
+    {
+        /* empty array */
+        goto success;
+    }
+
+    /* check if we skipped to the end of the buffer */
+    if (cannot_access_at_index(input_buffer, 0))
+    {
+        input_buffer->offset--;
+        goto fail;
+    }
+
+    /* step back to character in front of the first element */
+    input_buffer->offset--;
+    /* loop through the comma separated array elements */
+    do
+    {
+        /* allocate next item */
+        cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
+        if (new_item == NULL)
+        {
+            goto fail; /* allocation failure */
+        }
+
+        /* attach next item to list */
+        if (head == NULL)
+        {
+            /* start the linked list */
+            current_item = head = new_item;
+        }
+        else
+        {
+            /* add to the end and advance */
+            current_item->next = new_item;
+            new_item->prev = current_item;
+            current_item = new_item;
+        }
+
+        /* parse next value */
+        input_buffer->offset++;
+        buffer_skip_whitespace(input_buffer);
+        if (!parse_value(current_item, input_buffer))
+        {
+            goto fail; /* failed to parse value */
+        }
+        buffer_skip_whitespace(input_buffer);
+    }
+    while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
+
+    if (cannot_access_at_index(input_buffer, 0) || buffer_at_offset(input_buffer)[0] != ']')
+    {
+        goto fail; /* expected end of array */
+    }
+
+success:
+    input_buffer->depth--;
+
+    item->type = cJSON_Array;
+    item->child = head;
+
+    input_buffer->offset++;
+
+    return true;
+
+fail:
+    if (head != NULL)
+    {
+        cJSON_Delete(head);
+    }
+
+    return false;
+}
+
+/* Render an array to text */
+static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer)
+{
+    unsigned char *output_pointer = NULL;
+    size_t length = 0;
+    cJSON *current_element = item->child;
+
+    if (output_buffer == NULL)
+    {
+        return false;
+    }
+
+    /* Compose the output array. */
+    /* opening square bracket */
+    output_pointer = ensure(output_buffer, 1);
+    if (output_pointer == NULL)
+    {
+        return false;
+    }
+
+    *output_pointer = '[';
+    output_buffer->offset++;
+    output_buffer->depth++;
+
+    while (current_element != NULL)
+    {
+        if (!print_value(current_element, output_buffer))
+        {
+            return false;
+        }
+        update_offset(output_buffer);
+        if (current_element->next)
+        {
+            length = (size_t) (output_buffer->format ? 2 : 1);
+            output_pointer = ensure(output_buffer, length + 1);
+            if (output_pointer == NULL)
+            {
+                return false;
+            }
+            *output_pointer++ = ',';
+            if(output_buffer->format)
+            {
+                *output_pointer++ = ' ';
+            }
+            *output_pointer = '\0';
+            output_buffer->offset += length;
+        }
+        current_element = current_element->next;
+    }
+
+    output_pointer = ensure(output_buffer, 2);
+    if (output_pointer == NULL)
+    {
+        return false;
+    }
+    *output_pointer++ = ']';
+    *output_pointer = '\0';
+    output_buffer->depth--;
+
+    return true;
+}
+
+/* Build an object from the text. */
+static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer)
+{
+    cJSON *head = NULL; /* linked list head */
+    cJSON *current_item = NULL;
+
+    if (input_buffer->depth >= CJSON_NESTING_LIMIT)
+    {
+        return false; /* to deeply nested */
+    }
+    input_buffer->depth++;
+
+    if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '{'))
+    {
+        goto fail; /* not an object */
+    }
+
+    input_buffer->offset++;
+    buffer_skip_whitespace(input_buffer);
+    if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '}'))
+    {
+        goto success; /* empty object */
+    }
+
+    /* check if we skipped to the end of the buffer */
+    if (cannot_access_at_index(input_buffer, 0))
+    {
+        input_buffer->offset--;
+        goto fail;
+    }
+
+    /* step back to character in front of the first element */
+    input_buffer->offset--;
+    /* loop through the comma separated array elements */
+    do
+    {
+        /* allocate next item */
+        cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
+        if (new_item == NULL)
+        {
+            goto fail; /* allocation failure */
+        }
+
+        /* attach next item to list */
+        if (head == NULL)
+        {
+            /* start the linked list */
+            current_item = head = new_item;
+        }
+        else
+        {
+            /* add to the end and advance */
+            current_item->next = new_item;
+            new_item->prev = current_item;
+            current_item = new_item;
+        }
+
+        /* parse the name of the child */
+        input_buffer->offset++;
+        buffer_skip_whitespace(input_buffer);
+        if (!parse_string(current_item, input_buffer))
+        {
+            goto fail; /* failed to parse name */
+        }
+        buffer_skip_whitespace(input_buffer);
+
+        /* swap valuestring and string, because we parsed the name */
+        current_item->string = current_item->valuestring;
+        current_item->valuestring = NULL;
+
+        if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != ':'))
+        {
+            goto fail; /* invalid object */
+        }
+
+        /* parse the value */
+        input_buffer->offset++;
+        buffer_skip_whitespace(input_buffer);
+        if (!parse_value(current_item, input_buffer))
+        {
+            goto fail; /* failed to parse value */
+        }
+        buffer_skip_whitespace(input_buffer);
+    }
+    while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
+
+    if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '}'))
+    {
+        goto fail; /* expected end of object */
+    }
+
+success:
+    input_buffer->depth--;
+
+    item->type = cJSON_Object;
+    item->child = head;
+
+    input_buffer->offset++;
+    return true;
+
+fail:
+    if (head != NULL)
+    {
+        cJSON_Delete(head);
+    }
+
+    return false;
+}
+
+/* Render an object to text. */
+static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer)
+{
+    unsigned char *output_pointer = NULL;
+    size_t length = 0;
+    cJSON *current_item = item->child;
+
+    if (output_buffer == NULL)
+    {
+        return false;
+    }
+
+    /* Compose the output: */
+    length = (size_t) (output_buffer->format ? 2 : 1); /* fmt: {\n */
+    output_pointer = ensure(output_buffer, length + 1);
+    if (output_pointer == NULL)
+    {
+        return false;
+    }
+
+    *output_pointer++ = '{';
+    output_buffer->depth++;
+    if (output_buffer->format)
+    {
+        *output_pointer++ = '\n';
+    }
+    output_buffer->offset += length;
+
+    while (current_item)
+    {
+        if (output_buffer->format)
+        {
+            size_t i;
+            output_pointer = ensure(output_buffer, output_buffer->depth);
+            if (output_pointer == NULL)
+            {
+                return false;
+            }
+            for (i = 0; i < output_buffer->depth; i++)
+            {
+                *output_pointer++ = '\t';
+            }
+            output_buffer->offset += output_buffer->depth;
+        }
+
+        /* print key */
+        if (!print_string_ptr((unsigned char*)current_item->string, output_buffer))
+        {
+            return false;
+        }
+        update_offset(output_buffer);
+
+        length = (size_t) (output_buffer->format ? 2 : 1);
+        output_pointer = ensure(output_buffer, length);
+        if (output_pointer == NULL)
+        {
+            return false;
+        }
+        *output_pointer++ = ':';
+        if (output_buffer->format)
+        {
+            *output_pointer++ = '\t';
+        }
+        output_buffer->offset += length;
+
+        /* print value */
+        if (!print_value(current_item, output_buffer))
+        {
+            return false;
+        }
+        update_offset(output_buffer);
+
+        /* print comma if not last */
+        length = (size_t) ((output_buffer->format ? 1 : 0) + (current_item->next ? 1 : 0));
+        output_pointer = ensure(output_buffer, length + 1);
+        if (output_pointer == NULL)
+        {
+            return false;
+        }
+        if (current_item->next)
+        {
+            *output_pointer++ = ',';
+        }
+
+        if (output_buffer->format)
+        {
+            *output_pointer++ = '\n';
+        }
+        *output_pointer = '\0';
+        output_buffer->offset += length;
+
+        current_item = current_item->next;
+    }
+
+    output_pointer = ensure(output_buffer, output_buffer->format ? (output_buffer->depth + 1) : 2);
+    if (output_pointer == NULL)
+    {
+        return false;
+    }
+    if (output_buffer->format)
+    {
+        size_t i;
+        for (i = 0; i < (output_buffer->depth - 1); i++)
+        {
+            *output_pointer++ = '\t';
+        }
+    }
+    *output_pointer++ = '}';
+    *output_pointer = '\0';
+    output_buffer->depth--;
+
+    return true;
+}
+
+/* Get Array size/item / object item. */
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
+{
+    cJSON *child = NULL;
+    size_t size = 0;
+
+    if (array == NULL)
+    {
+        return 0;
+    }
+
+    child = array->child;
+
+    while(child != NULL)
+    {
+        size++;
+        child = child->next;
+    }
+
+    /* FIXME: Can overflow here. Cannot be fixed without breaking the API */
+
+    return (int)size;
+}
+
+static cJSON* get_array_item(const cJSON *array, size_t index)
+{
+    cJSON *current_child = NULL;
+
+    if (array == NULL)
+    {
+        return NULL;
+    }
+
+    current_child = array->child;
+    while ((current_child != NULL) && (index > 0))
+    {
+        index--;
+        current_child = current_child->next;
+    }
+
+    return current_child;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index)
+{
+    if (index < 0)
+    {
+        return NULL;
+    }
+
+    return get_array_item(array, (size_t)index);
+}
+
+static cJSON *get_object_item(const cJSON * const object, const char * const name, const cJSON_bool case_sensitive)
+{
+    cJSON *current_element = NULL;
+
+    if ((object == NULL) || (name == NULL))
+    {
+        return NULL;
+    }
+
+    current_element = object->child;
+    if (case_sensitive)
+    {
+        while ((current_element != NULL) && (strcmp(name, current_element->string) != 0))
+        {
+            current_element = current_element->next;
+        }
+    }
+    else
+    {
+        while ((current_element != NULL) && (case_insensitive_strcmp((const unsigned char*)name, (const unsigned char*)(current_element->string)) != 0))
+        {
+            current_element = current_element->next;
+        }
+    }
+
+    return current_element;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string)
+{
+    return get_object_item(object, string, false);
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string)
+{
+    return get_object_item(object, string, true);
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string)
+{
+    return cJSON_GetObjectItem(object, string) ? 1 : 0;
+}
+
+/* Utility for array list handling. */
+static void suffix_object(cJSON *prev, cJSON *item)
+{
+    prev->next = item;
+    item->prev = prev;
+}
+
+/* Utility for handling references. */
+static cJSON *create_reference(const cJSON *item, const internal_hooks * const hooks)
+{
+    cJSON *reference = NULL;
+    if (item == NULL)
+    {
+        return NULL;
+    }
+
+    reference = cJSON_New_Item(hooks);
+    if (reference == NULL)
+    {
+        return NULL;
+    }
+
+    memcpy(reference, item, sizeof(cJSON));
+    reference->string = NULL;
+    reference->type |= cJSON_IsReference;
+    reference->next = reference->prev = NULL;
+    return reference;
+}
+
+static cJSON_bool add_item_to_array(cJSON *array, cJSON *item)
+{
+    cJSON *child = NULL;
+
+    if ((item == NULL) || (array == NULL))
+    {
+        return false;
+    }
+
+    child = array->child;
+
+    if (child == NULL)
+    {
+        /* list is empty, start new one */
+        array->child = item;
+    }
+    else
+    {
+        /* append to the end */
+        while (child->next)
+        {
+            child = child->next;
+        }
+        suffix_object(child, item);
+    }
+
+    return true;
+}
+
+/* Add item to array/object. */
+CJSON_PUBLIC(void) cJSON_AddItemToArray(cJSON *array, cJSON *item)
+{
+    add_item_to_array(array, item);
+}
+
+#if defined(__clang__) || (defined(__GNUC__)  && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
+    #pragma GCC diagnostic push
+#endif
+#ifdef __GNUC__
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+/* helper function to cast away const */
+static void* cast_away_const(const void* string)
+{
+    return (void*)string;
+}
+#if defined(__clang__) || (defined(__GNUC__)  && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
+    #pragma GCC diagnostic pop
+#endif
+
+
+static cJSON_bool add_item_to_object(cJSON * const object, const char * const string, cJSON * const item, const internal_hooks * const hooks, const cJSON_bool constant_key)
+{
+    char *new_key = NULL;
+    int new_type = cJSON_Invalid;
+
+    if ((object == NULL) || (string == NULL) || (item == NULL))
+    {
+        return false;
+    }
+
+    if (constant_key)
+    {
+        new_key = (char*)cast_away_const(string);
+        new_type = item->type | cJSON_StringIsConst;
+    }
+    else
+    {
+        new_key = (char*)cJSON_strdup((const unsigned char*)string, hooks);
+        if (new_key == NULL)
+        {
+            return false;
+        }
+
+        new_type = item->type & ~cJSON_StringIsConst;
+    }
+
+    if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
+    {
+        hooks->deallocate(item->string);
+    }
+
+    item->string = new_key;
+    item->type = new_type;
+
+    return add_item_to_array(object, item);
+}
+
+CJSON_PUBLIC(void) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
+{
+    add_item_to_object(object, string, item, &global_hooks, false);
+}
+
+/* Add an item to an object with constant string as key */
+CJSON_PUBLIC(void) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
+{
+    add_item_to_object(object, string, item, &global_hooks, true);
+}
+
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
+{
+    if (array == NULL)
+    {
+        return;
+    }
+
+    add_item_to_array(array, create_reference(item, &global_hooks));
+}
+
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
+{
+    if ((object == NULL) || (string == NULL))
+    {
+        return;
+    }
+
+    add_item_to_object(object, string, create_reference(item, &global_hooks), &global_hooks, false);
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name)
+{
+    cJSON *null = cJSON_CreateNull();
+    if (add_item_to_object(object, name, null, &global_hooks, false))
+    {
+        return null;
+    }
+
+    cJSON_Delete(null);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name)
+{
+    cJSON *true_item = cJSON_CreateTrue();
+    if (add_item_to_object(object, name, true_item, &global_hooks, false))
+    {
+        return true_item;
+    }
+
+    cJSON_Delete(true_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name)
+{
+    cJSON *false_item = cJSON_CreateFalse();
+    if (add_item_to_object(object, name, false_item, &global_hooks, false))
+    {
+        return false_item;
+    }
+
+    cJSON_Delete(false_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean)
+{
+    cJSON *bool_item = cJSON_CreateBool(boolean);
+    if (add_item_to_object(object, name, bool_item, &global_hooks, false))
+    {
+        return bool_item;
+    }
+
+    cJSON_Delete(bool_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number)
+{
+    cJSON *number_item = cJSON_CreateNumber(number);
+    if (add_item_to_object(object, name, number_item, &global_hooks, false))
+    {
+        return number_item;
+    }
+
+    cJSON_Delete(number_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string)
+{
+    cJSON *string_item = cJSON_CreateString(string);
+    if (add_item_to_object(object, name, string_item, &global_hooks, false))
+    {
+        return string_item;
+    }
+
+    cJSON_Delete(string_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw)
+{
+    cJSON *raw_item = cJSON_CreateRaw(raw);
+    if (add_item_to_object(object, name, raw_item, &global_hooks, false))
+    {
+        return raw_item;
+    }
+
+    cJSON_Delete(raw_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name)
+{
+    cJSON *object_item = cJSON_CreateObject();
+    if (add_item_to_object(object, name, object_item, &global_hooks, false))
+    {
+        return object_item;
+    }
+
+    cJSON_Delete(object_item);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name)
+{
+    cJSON *array = cJSON_CreateArray();
+    if (add_item_to_object(object, name, array, &global_hooks, false))
+    {
+        return array;
+    }
+
+    cJSON_Delete(array);
+    return NULL;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item)
+{
+    if ((parent == NULL) || (item == NULL))
+    {
+        return NULL;
+    }
+
+    if (item->prev != NULL)
+    {
+        /* not the first element */
+        item->prev->next = item->next;
+    }
+    if (item->next != NULL)
+    {
+        /* not the last element */
+        item->next->prev = item->prev;
+    }
+
+    if (item == parent->child)
+    {
+        /* first element */
+        parent->child = item->next;
+    }
+    /* make sure the detached item doesn't point anywhere anymore */
+    item->prev = NULL;
+    item->next = NULL;
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which)
+{
+    if (which < 0)
+    {
+        return NULL;
+    }
+
+    return cJSON_DetachItemViaPointer(array, get_array_item(array, (size_t)which));
+}
+
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which)
+{
+    cJSON_Delete(cJSON_DetachItemFromArray(array, which));
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string)
+{
+    cJSON *to_detach = cJSON_GetObjectItem(object, string);
+
+    return cJSON_DetachItemViaPointer(object, to_detach);
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string)
+{
+    cJSON *to_detach = cJSON_GetObjectItemCaseSensitive(object, string);
+
+    return cJSON_DetachItemViaPointer(object, to_detach);
+}
+
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string)
+{
+    cJSON_Delete(cJSON_DetachItemFromObject(object, string));
+}
+
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string)
+{
+    cJSON_Delete(cJSON_DetachItemFromObjectCaseSensitive(object, string));
+}
+
+/* Replace array/object items with new ones. */
+CJSON_PUBLIC(void) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
+{
+    cJSON *after_inserted = NULL;
+
+    if (which < 0)
+    {
+        return;
+    }
+
+    after_inserted = get_array_item(array, (size_t)which);
+    if (after_inserted == NULL)
+    {
+        add_item_to_array(array, newitem);
+        return;
+    }
+
+    newitem->next = after_inserted;
+    newitem->prev = after_inserted->prev;
+    after_inserted->prev = newitem;
+    if (after_inserted == array->child)
+    {
+        array->child = newitem;
+    }
+    else
+    {
+        newitem->prev->next = newitem;
+    }
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement)
+{
+    if ((parent == NULL) || (replacement == NULL) || (item == NULL))
+    {
+        return false;
+    }
+
+    if (replacement == item)
+    {
+        return true;
+    }
+
+    replacement->next = item->next;
+    replacement->prev = item->prev;
+
+    if (replacement->next != NULL)
+    {
+        replacement->next->prev = replacement;
+    }
+    if (replacement->prev != NULL)
+    {
+        replacement->prev->next = replacement;
+    }
+    if (parent->child == item)
+    {
+        parent->child = replacement;
+    }
+
+    item->next = NULL;
+    item->prev = NULL;
+    cJSON_Delete(item);
+
+    return true;
+}
+
+CJSON_PUBLIC(void) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
+{
+    if (which < 0)
+    {
+        return;
+    }
+
+    cJSON_ReplaceItemViaPointer(array, get_array_item(array, (size_t)which), newitem);
+}
+
+static cJSON_bool replace_item_in_object(cJSON *object, const char *string, cJSON *replacement, cJSON_bool case_sensitive)
+{
+    if ((replacement == NULL) || (string == NULL))
+    {
+        return false;
+    }
+
+    /* replace the name in the replacement */
+    if (!(replacement->type & cJSON_StringIsConst) && (replacement->string != NULL))
+    {
+        cJSON_free(replacement->string);
+    }
+    replacement->string = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
+    replacement->type &= ~cJSON_StringIsConst;
+
+    cJSON_ReplaceItemViaPointer(object, get_object_item(object, string, case_sensitive), replacement);
+
+    return true;
+}
+
+CJSON_PUBLIC(void) cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
+{
+    replace_item_in_object(object, string, newitem, false);
+}
+
+CJSON_PUBLIC(void) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object, const char *string, cJSON *newitem)
+{
+    replace_item_in_object(object, string, newitem, true);
+}
+
+/* Create basic types: */
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_NULL;
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_True;
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_False;
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool b)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = b ? cJSON_True : cJSON_False;
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_Number;
+        item->valuedouble = num;
+
+        /* use saturation in case of overflow */
+        if (num >= INT_MAX)
+        {
+            item->valueint = INT_MAX;
+        }
+        else if (num <= INT_MIN)
+        {
+            item->valueint = INT_MIN;
+        }
+        else
+        {
+            item->valueint = (int)num;
+        }
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateInt64(long long num)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_Number;
+        item->valuedouble = static_cast<double>(num);
+
+        // For integer which is out of the range of [INT_MIN, INT_MAX], it may lose precision if we cast it to double.
+        // Instead, we keep the integer literal as a string.
+        if (num > INT_MAX || num < INT_MIN)
+        {
+            char buf[21];
+            sprintf(buf, "%lld", num);
+            item->valuestring = (char*)cJSON_strdup((const unsigned char*)buf, &global_hooks);
+        }
+
+        /* use saturation in case of overflow */
+        if (num >= INT_MAX)
+        {
+            item->valueint = INT_MAX;
+        }
+        else if (num <= INT_MIN)
+        {
+            item->valueint = INT_MIN;
+        }
+        else
+        {
+            item->valueint = (int)num;
+        }
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_String;
+        item->valuestring = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
+        if(!item->valuestring)
+        {
+            cJSON_Delete(item);
+            return NULL;
+        }
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if (item != NULL)
+    {
+        item->type = cJSON_String | cJSON_IsReference;
+        item->valuestring = (char*)cast_away_const(string);
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if (item != NULL) {
+        item->type = cJSON_Object | cJSON_IsReference;
+        item->child = (cJSON*)cast_away_const(child);
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child) {
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if (item != NULL) {
+        item->type = cJSON_Array | cJSON_IsReference;
+        item->child = (cJSON*)cast_away_const(child);
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type = cJSON_Raw;
+        item->valuestring = (char*)cJSON_strdup((const unsigned char*)raw, &global_hooks);
+        if(!item->valuestring)
+        {
+            cJSON_Delete(item);
+            return NULL;
+        }
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if(item)
+    {
+        item->type=cJSON_Array;
+    }
+
+    return item;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void)
+{
+    cJSON *item = cJSON_New_Item(&global_hooks);
+    if (item)
+    {
+        item->type = cJSON_Object;
+    }
+
+    return item;
+}
+
+/* Create Arrays: */
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count)
+{
+    size_t i = 0;
+    cJSON *n = NULL;
+    cJSON *p = NULL;
+    cJSON *a = NULL;
+
+    if ((count < 0) || (numbers == NULL))
+    {
+        return NULL;
+    }
+
+    a = cJSON_CreateArray();
+    for(i = 0; a && (i < (size_t)count); i++)
+    {
+        n = cJSON_CreateNumber(numbers[i]);
+        if (!n)
+        {
+            cJSON_Delete(a);
+            return NULL;
+        }
+        if(!i)
+        {
+            a->child = n;
+        }
+        else
+        {
+            suffix_object(p, n);
+        }
+        p = n;
+    }
+
+    return a;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count)
+{
+    size_t i = 0;
+    cJSON *n = NULL;
+    cJSON *p = NULL;
+    cJSON *a = NULL;
+
+    if ((count < 0) || (numbers == NULL))
+    {
+        return NULL;
+    }
+
+    a = cJSON_CreateArray();
+
+    for(i = 0; a && (i < (size_t)count); i++)
+    {
+        n = cJSON_CreateNumber((double)numbers[i]);
+        if(!n)
+        {
+            cJSON_Delete(a);
+            return NULL;
+        }
+        if(!i)
+        {
+            a->child = n;
+        }
+        else
+        {
+            suffix_object(p, n);
+        }
+        p = n;
+    }
+
+    return a;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count)
+{
+    size_t i = 0;
+    cJSON *n = NULL;
+    cJSON *p = NULL;
+    cJSON *a = NULL;
+
+    if ((count < 0) || (numbers == NULL))
+    {
+        return NULL;
+    }
+
+    a = cJSON_CreateArray();
+
+    for(i = 0;a && (i < (size_t)count); i++)
+    {
+        n = cJSON_CreateNumber(numbers[i]);
+        if(!n)
+        {
+            cJSON_Delete(a);
+            return NULL;
+        }
+        if(!i)
+        {
+            a->child = n;
+        }
+        else
+        {
+            suffix_object(p, n);
+        }
+        p = n;
+    }
+
+    return a;
+}
+
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char **strings, int count)
+{
+    size_t i = 0;
+    cJSON *n = NULL;
+    cJSON *p = NULL;
+    cJSON *a = NULL;
+
+    if ((count < 0) || (strings == NULL))
+    {
+        return NULL;
+    }
+
+    a = cJSON_CreateArray();
+
+    for (i = 0; a && (i < (size_t)count); i++)
+    {
+        n = cJSON_CreateString(strings[i]);
+        if(!n)
+        {
+            cJSON_Delete(a);
+            return NULL;
+        }
+        if(!i)
+        {
+            a->child = n;
+        }
+        else
+        {
+            suffix_object(p,n);
+        }
+        p = n;
+    }
+
+    return a;
+}
+
+/* Duplication */
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse)
+{
+    cJSON *newitem = NULL;
+    cJSON *child = NULL;
+    cJSON *next = NULL;
+    cJSON *newchild = NULL;
+
+    /* Bail on bad ptr */
+    if (!item)
+    {
+        goto fail;
+    }
+    /* Create new item */
+    newitem = cJSON_New_Item(&global_hooks);
+    if (!newitem)
+    {
+        goto fail;
+    }
+    /* Copy over all vars */
+    newitem->type = item->type & (~cJSON_IsReference);
+    newitem->valueint = item->valueint;
+    newitem->valuedouble = item->valuedouble;
+    if (item->valuestring)
+    {
+        newitem->valuestring = (char*)cJSON_strdup((unsigned char*)item->valuestring, &global_hooks);
+        if (!newitem->valuestring)
+        {
+            goto fail;
+        }
+    }
+    if (item->string)
+    {
+        newitem->string = (item->type&cJSON_StringIsConst) ? item->string : (char*)cJSON_strdup((unsigned char*)item->string, &global_hooks);
+        if (!newitem->string)
+        {
+            goto fail;
+        }
+    }
+    /* If non-recursive, then we're done! */
+    if (!recurse)
+    {
+        return newitem;
+    }
+    /* Walk the ->next chain for the child. */
+    child = item->child;
+    while (child != NULL)
+    {
+        newchild = cJSON_Duplicate(child, true); /* Duplicate (with recurse) each item in the ->next chain */
+        if (!newchild)
+        {
+            goto fail;
+        }
+        if (next != NULL)
+        {
+            /* If newitem->child already set, then crosswire ->prev and ->next and move on */
+            next->next = newchild;
+            newchild->prev = next;
+            next = newchild;
+        }
+        else
+        {
+            /* Set newitem->child and move to it */
+            newitem->child = newchild;
+            next = newchild;
+        }
+        child = child->next;
+    }
+
+    return newitem;
+
+fail:
+    if (newitem != NULL)
+    {
+        cJSON_Delete(newitem);
+    }
+
+    return NULL;
+}
+
+CJSON_PUBLIC(void) cJSON_Minify(char *json)
+{
+    unsigned char *into = (unsigned char*)json;
+
+    if (json == NULL)
+    {
+        return;
+    }
+
+    while (*json)
+    {
+        if (*json == ' ')
+        {
+            json++;
+        }
+        else if (*json == '\t')
+        {
+            /* Whitespace characters. */
+            json++;
+        }
+        else if (*json == '\r')
+        {
+            json++;
+        }
+        else if (*json=='\n')
+        {
+            json++;
+        }
+        else if ((*json == '/') && (json[1] == '/'))
+        {
+            /* double-slash comments, to end of line. */
+            while (*json && (*json != '\n'))
+            {
+                json++;
+            }
+        }
+        else if ((*json == '/') && (json[1] == '*'))
+        {
+            /* multiline comments. */
+            while (*json && !((*json == '*') && (json[1] == '/')))
+            {
+                json++;
+            }
+            json += 2;
+        }
+        else if (*json == '\"')
+        {
+            /* string literals, which are \" sensitive. */
+            *into++ = (unsigned char)*json++;
+            while (*json && (*json != '\"'))
+            {
+                if (*json == '\\')
+                {
+                    *into++ = (unsigned char)*json++;
+                }
+                *into++ = (unsigned char)*json++;
+            }
+            *into++ = (unsigned char)*json++;
+        }
+        else
+        {
+            /* All other characters. */
+            *into++ = (unsigned char)*json++;
+        }
+    }
+
+    /* and null-terminate. */
+    *into = '\0';
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_Invalid;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_False;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xff) == cJSON_True;
+}
+
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & (cJSON_True | cJSON_False)) != 0;
+}
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_NULL;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_Number;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_String;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_Array;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_Object;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item)
+{
+    if (item == NULL)
+    {
+        return false;
+    }
+
+    return (item->type & 0xFF) == cJSON_Raw;
+}
+
+CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive)
+{
+    if ((a == NULL) || (b == NULL) || ((a->type & 0xFF) != (b->type & 0xFF)) || cJSON_IsInvalid(a))
+    {
+        return false;
+    }
+
+    /* check if type is valid */
+    switch (a->type & 0xFF)
+    {
+        case cJSON_False:
+        case cJSON_True:
+        case cJSON_NULL:
+        case cJSON_Number:
+        case cJSON_String:
+        case cJSON_Raw:
+        case cJSON_Array:
+        case cJSON_Object:
+            break;
+
+        default:
+            return false;
+    }
+
+    /* identical objects are equal */
+    if (a == b)
+    {
+        return true;
+    }
+
+    switch (a->type & 0xFF)
+    {
+        /* in these cases and equal type is enough */
+        case cJSON_False:
+        case cJSON_True:
+        case cJSON_NULL:
+            return true;
+
+        case cJSON_Number:
+            if (a->valuedouble == b->valuedouble)
+            {
+                return true;
+            }
+            return false;
+
+        case cJSON_String:
+        case cJSON_Raw:
+            if ((a->valuestring == NULL) || (b->valuestring == NULL))
+            {
+                return false;
+            }
+            if (strcmp(a->valuestring, b->valuestring) == 0)
+            {
+                return true;
+            }
+
+            return false;
+
+        case cJSON_Array:
+        {
+            cJSON *a_element = a->child;
+            cJSON *b_element = b->child;
+
+            for (; (a_element != NULL) && (b_element != NULL);)
+            {
+                if (!cJSON_Compare(a_element, b_element, case_sensitive))
+                {
+                    return false;
+                }
+
+                a_element = a_element->next;
+                b_element = b_element->next;
+            }
+
+            /* one of the arrays is longer than the other */
+            if (a_element != b_element) {
+                return false;
+            }
+
+            return true;
+        }
+
+        case cJSON_Object:
+        {
+            cJSON *a_element = NULL;
+            cJSON *b_element = NULL;
+            cJSON_ArrayForEach(a_element, a)
+            {
+                /* TODO This has O(n^2) runtime, which is horrible! */
+                b_element = get_object_item(b, a_element->string, case_sensitive);
+                if (b_element == NULL)
+                {
+                    return false;
+                }
+
+                if (!cJSON_Compare(a_element, b_element, case_sensitive))
+                {
+                    return false;
+                }
+            }
+
+            /* doing this twice, once on a and b to prevent true comparison if a subset of b
+             * TODO: Do this the proper way, this is just a fix for now */
+            cJSON_ArrayForEach(b_element, b)
+            {
+                a_element = get_object_item(a, b_element->string, case_sensitive);
+                if (a_element == NULL)
+                {
+                    return false;
+                }
+
+                if (!cJSON_Compare(b_element, a_element, case_sensitive))
+                {
+                    return false;
+                }
+            }
+
+            return true;
+        }
+
+        default:
+            return false;
+    }
+}
+
+CJSON_PUBLIC(void *) cJSON_malloc(size_t size)
+{
+    return global_hooks.allocate(size);
+}
+
+CJSON_PUBLIC(void) cJSON_free(void *object)
+{
+    global_hooks.deallocate(object);
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/tinyxml2/tinyxml2.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/tinyxml2/tinyxml2.cpp
new file mode 100644
index 0000000000..ebe0fd9eec
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/external/tinyxml2/tinyxml2.cpp
@@ -0,0 +1,2802 @@
+/*
+Original code by Lee Thomason (www.grinninglizard.com)
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any
+damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must
+not claim that you wrote the original software. If you use this
+software in a product, an acknowledgment in the product documentation
+would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and
+must not be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source
+distribution.
+*/
+
+/*
+This file has been modified from its original version by Amazon:
+  (1) Memory management operations use aws memory management api
+  (2) #includes all use <>
+*/
+
+#include <aws/core/external/tinyxml2/tinyxml2.h>
+
+#include <new>		// yes, this one new style header, is in the Android SDK.
+#if defined(ANDROID_NDK) || defined(__BORLANDC__) || defined(__QNXNTO__)
+#   include <stddef.h>
+#   include <stdarg.h>
+#else
+#   include <cstddef>
+#   include <cstdarg>
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1400 ) && (!defined WINCE)
+    // Microsoft Visual Studio, version 2005 and higher. Not WinCE.
+    /*int _snprintf_s(
+       char *buffer,
+       size_t sizeOfBuffer,
+       size_t count,
+       const char *format [,
+          argument] ...
+    );*/
+    static inline int TIXML_SNPRINTF( char* buffer, size_t size, const char* format, ... )
+    {
+        va_list va;
+        va_start( va, format );
+        int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va );
+        va_end( va );
+        return result;
+    }
+
+    static inline int TIXML_VSNPRINTF( char* buffer, size_t size, const char* format, va_list va )
+    {
+        int result = vsnprintf_s( buffer, size, _TRUNCATE, format, va );
+        return result;
+    }
+
+    #define TIXML_VSCPRINTF	_vscprintf
+    #define TIXML_SSCANF	sscanf_s
+#elif defined _MSC_VER
+    // Microsoft Visual Studio 2003 and earlier or WinCE
+    #define TIXML_SNPRINTF	_snprintf
+    #define TIXML_VSNPRINTF _vsnprintf
+    #define TIXML_SSCANF	sscanf
+    #if (_MSC_VER < 1400 ) && (!defined WINCE)
+        // Microsoft Visual Studio 2003 and not WinCE.
+        #define TIXML_VSCPRINTF   _vscprintf // VS2003's C runtime has this, but VC6 C runtime or WinCE SDK doesn't have.
+    #else
+        // Microsoft Visual Studio 2003 and earlier or WinCE.
+        static inline int TIXML_VSCPRINTF( const char* format, va_list va )
+        {
+            int len = 512;
+            for (;;) {
+                len = len*2;
+                char* str = Aws::NewArray<char>(len, ALLOCATION_TAG);
+                const int required = _vsnprintf(str, len, format, va);
+                Aws::DeleteArray(str);
+                if ( required != -1 ) {
+                    TIXMLASSERT( required >= 0 );
+                    len = required;
+                    break;
+                }
+            }
+            TIXMLASSERT( len >= 0 );
+            return len;
+        }
+    #endif
+#else
+    // GCC version 3 and higher
+    //#warning( "Using sn* functions." )
+    #define TIXML_SNPRINTF	snprintf
+    #define TIXML_VSNPRINTF	vsnprintf
+    static inline int TIXML_VSCPRINTF( const char* format, va_list va )
+    {
+        int len = vsnprintf( 0, 0, format, va );
+        TIXMLASSERT( len >= 0 );
+        return len;
+    }
+    #define TIXML_SSCANF   sscanf
+#endif
+
+
+static const char LINE_FEED				= (char)0x0a;			// all line endings are normalized to LF
+static const char LF = LINE_FEED;
+static const char CARRIAGE_RETURN		= (char)0x0d;			// CR gets filtered out
+static const char CR = CARRIAGE_RETURN;
+static const char SINGLE_QUOTE			= '\'';
+static const char DOUBLE_QUOTE			= '\"';
+
+// Bunch of unicode info at:
+//		http://www.unicode.org/faq/utf_bom.html
+//	ef bb bf (Microsoft "lead bytes") - designates UTF-8
+
+static const unsigned char TIXML_UTF_LEAD_0 = 0xefU;
+static const unsigned char TIXML_UTF_LEAD_1 = 0xbbU;
+static const unsigned char TIXML_UTF_LEAD_2 = 0xbfU;
+
+namespace Aws
+{
+namespace External
+{
+namespace tinyxml2
+{
+
+struct Entity {
+    const char* pattern;
+    int length;
+    char value;
+};
+
+static const int NUM_ENTITIES = 5;
+static const Entity entities[NUM_ENTITIES] = {
+    { "quot", 4,	DOUBLE_QUOTE },
+    { "amp", 3,		'&'  },
+    { "apos", 4,	SINGLE_QUOTE },
+    { "lt",	2, 		'<'	 },
+    { "gt",	2,		'>'	 }
+};
+
+
+StrPair::~StrPair()
+{
+    Reset();
+}
+
+
+void StrPair::TransferTo( StrPair* other )
+{
+    if ( this == other ) {
+        return;
+    }
+    // This in effect implements the assignment operator by "moving"
+    // ownership (as in auto_ptr).
+
+    TIXMLASSERT( other != 0 );
+    TIXMLASSERT( other->_flags == 0 );
+    TIXMLASSERT( other->_start == 0 );
+    TIXMLASSERT( other->_end == 0 );
+
+    other->Reset();
+
+    other->_flags = _flags;
+    other->_start = _start;
+    other->_end = _end;
+
+    _flags = 0;
+    _start = 0;
+    _end = 0;
+}
+
+
+void StrPair::Reset()
+{
+    if ( _flags & NEEDS_DELETE ) {
+        Aws::DeleteArray(_start);
+    }
+    _flags = 0;
+    _start = 0;
+    _end = 0;
+}
+
+
+void StrPair::SetStr( const char* str, int flags )
+{
+    TIXMLASSERT( str );
+    Reset();
+    size_t len = strlen( str );
+    TIXMLASSERT( _start == 0 );
+    _start = Aws::NewArray<char>(len+1, ALLOCATION_TAG);
+    memcpy( _start, str, len+1 );
+    _end = _start + len;
+    _flags = flags | NEEDS_DELETE;
+}
+
+
+char* StrPair::ParseText( char* p, const char* endTag, int strFlags, int* curLineNumPtr )
+{
+    TIXMLASSERT( p );
+    TIXMLASSERT( endTag && *endTag );
+    TIXMLASSERT(curLineNumPtr);
+
+    char* start = p;
+    char  endChar = *endTag;
+    size_t length = strlen( endTag );
+
+    // Inner loop of text parsing.
+    while ( *p ) {
+        if ( *p == endChar && strncmp( p, endTag, length ) == 0 ) {
+            Set( start, p, strFlags );
+            return p + length;
+        } else if (*p == '\n') {
+            ++(*curLineNumPtr);
+        }
+        ++p;
+        TIXMLASSERT( p );
+    }
+    return 0;
+}
+
+
+char* StrPair::ParseName( char* p )
+{
+    if ( !p || !(*p) ) {
+        return 0;
+    }
+    if ( !XMLUtil::IsNameStartChar( *p ) ) {
+        return 0;
+    }
+
+    char* const start = p;
+    ++p;
+    while ( *p && XMLUtil::IsNameChar( *p ) ) {
+        ++p;
+    }
+
+    Set( start, p, 0 );
+    return p;
+}
+
+
+void StrPair::CollapseWhitespace()
+{
+    // Adjusting _start would cause undefined behavior on delete[]
+    TIXMLASSERT( ( _flags & NEEDS_DELETE ) == 0 );
+    // Trim leading space.
+    _start = XMLUtil::SkipWhiteSpace( _start, 0 );
+
+    if ( *_start ) {
+        const char* p = _start;	// the read pointer
+        char* q = _start;	// the write pointer
+
+        while( *p ) {
+            if ( XMLUtil::IsWhiteSpace( *p )) {
+                p = XMLUtil::SkipWhiteSpace( p, 0 );
+                if ( *p == 0 ) {
+                    break;    // don't write to q; this trims the trailing space.
+                }
+                *q = ' ';
+                ++q;
+            }
+            *q = *p;
+            ++q;
+            ++p;
+        }
+        *q = 0;
+    }
+}
+
+
+const char* StrPair::GetStr()
+{
+    TIXMLASSERT( _start );
+    TIXMLASSERT( _end );
+    if ( _flags & NEEDS_FLUSH ) {
+        *_end = 0;
+        _flags ^= NEEDS_FLUSH;
+
+        if ( _flags ) {
+            const char* p = _start;	// the read pointer
+            char* q = _start;	// the write pointer
+
+            while( p < _end ) {
+                if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == CR ) {
+                    // CR-LF pair becomes LF
+                    // CR alone becomes LF
+                    // LF-CR becomes LF
+                    if ( *(p+1) == LF ) {
+                        p += 2;
+                    }
+                    else {
+                        ++p;
+                    }
+                    *q = LF;
+                    ++q;
+                }
+                else if ( (_flags & NEEDS_NEWLINE_NORMALIZATION) && *p == LF ) {
+                    if ( *(p+1) == CR ) {
+                        p += 2;
+                    }
+                    else {
+                        ++p;
+                    }
+                    *q = LF;
+                    ++q;
+                }
+                else if ( (_flags & NEEDS_ENTITY_PROCESSING) && *p == '&' ) {
+                    // Entities handled by tinyXML2:
+                    // - special entities in the entity table [in/out]
+                    // - numeric character reference [in]
+                    //   &#20013; or &#x4e2d;
+
+                    if ( *(p+1) == '#' ) {
+                        const int buflen = 10;
+                        char buf[buflen] = { 0 };
+                        int len = 0;
+                        char* adjusted = const_cast<char*>( XMLUtil::GetCharacterRef( p, buf, &len ) );
+                        if ( adjusted == 0 ) {
+                            *q = *p;
+                            ++p;
+                            ++q;
+                        }
+                        else {
+                            TIXMLASSERT( 0 <= len && len <= buflen );
+                            TIXMLASSERT( q + len <= adjusted );
+                            p = adjusted;
+                            memcpy( q, buf, len );
+                            q += len;
+                        }
+                    }
+                    else {
+                        bool entityFound = false;
+                        for( int i = 0; i < NUM_ENTITIES; ++i ) {
+                            const Entity& entity = entities[i];
+                            if ( strncmp( p + 1, entity.pattern, entity.length ) == 0
+                                    && *( p + entity.length + 1 ) == ';' ) {
+                                // Found an entity - convert.
+                                *q = entity.value;
+                                ++q;
+                                p += entity.length + 2;
+                                entityFound = true;
+                                break;
+                            }
+                        }
+                        if ( !entityFound ) {
+                            // fixme: treat as error?
+                            ++p;
+                            ++q;
+                        }
+                    }
+                }
+                else {
+                    *q = *p;
+                    ++p;
+                    ++q;
+                }
+            }
+            *q = 0;
+        }
+        // The loop below has plenty going on, and this
+        // is a less useful mode. Break it out.
+        if ( _flags & NEEDS_WHITESPACE_COLLAPSING ) {
+            CollapseWhitespace();
+        }
+        _flags = (_flags & NEEDS_DELETE);
+    }
+    TIXMLASSERT( _start );
+    return _start;
+}
+
+
+
+
+// --------- XMLUtil ----------- //
+
+const char* XMLUtil::writeBoolTrue  = "true";
+const char* XMLUtil::writeBoolFalse = "false";
+
+void XMLUtil::SetBoolSerialization(const char* writeTrue, const char* writeFalse)
+{
+    static const char* defTrue  = "true";
+    static const char* defFalse = "false";
+
+    writeBoolTrue = (writeTrue) ? writeTrue : defTrue;
+    writeBoolFalse = (writeFalse) ? writeFalse : defFalse;
+}
+
+
+const char* XMLUtil::ReadBOM( const char* p, bool* bom )
+{
+    TIXMLASSERT( p );
+    TIXMLASSERT( bom );
+    *bom = false;
+    const unsigned char* pu = reinterpret_cast<const unsigned char*>(p);
+    // Check for BOM:
+    if (    *(pu+0) == TIXML_UTF_LEAD_0
+            && *(pu+1) == TIXML_UTF_LEAD_1
+            && *(pu+2) == TIXML_UTF_LEAD_2 ) {
+        *bom = true;
+        p += 3;
+    }
+    TIXMLASSERT( p );
+    return p;
+}
+
+
+void XMLUtil::ConvertUTF32ToUTF8( unsigned long input, char* output, int* length )
+{
+    const unsigned long BYTE_MASK = 0xBF;
+    const unsigned long BYTE_MARK = 0x80;
+    const unsigned long FIRST_BYTE_MARK[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
+
+    if (input < 0x80) {
+        *length = 1;
+    }
+    else if ( input < 0x800 ) {
+        *length = 2;
+    }
+    else if ( input < 0x10000 ) {
+        *length = 3;
+    }
+    else if ( input < 0x200000 ) {
+        *length = 4;
+    }
+    else {
+        *length = 0;    // This code won't convert this correctly anyway.
+        return;
+    }
+
+    output += *length;
+
+    // Scary scary fall throughs are annotated with carefully designed comments
+    // to suppress compiler warnings such as -Wimplicit-fallthrough in gcc
+    switch (*length) {
+        case 4:
+            --output;
+            *output = (char)((input | BYTE_MARK) & BYTE_MASK);
+            input >>= 6;
+            //fall through
+        case 3:
+            --output;
+            *output = (char)((input | BYTE_MARK) & BYTE_MASK);
+            input >>= 6;
+            //fall through
+        case 2:
+            --output;
+            *output = (char)((input | BYTE_MARK) & BYTE_MASK);
+            input >>= 6;
+            //fall through
+        case 1:
+            --output;
+            *output = (char)(input | FIRST_BYTE_MARK[*length]);
+            break;
+        default:
+            TIXMLASSERT( false );
+    }
+}
+
+
+const char* XMLUtil::GetCharacterRef( const char* p, char* value, int* length )
+{
+    // Presume an entity, and pull it out.
+    *length = 0;
+
+    if ( *(p+1) == '#' && *(p+2) ) {
+        unsigned long ucs = 0;
+        TIXMLASSERT( sizeof( ucs ) >= 4 );
+        ptrdiff_t delta = 0;
+        unsigned mult = 1;
+        static const char SEMICOLON = ';';
+
+        if ( *(p+2) == 'x' ) {
+            // Hexadecimal.
+            const char* q = p+3;
+            if ( !(*q) ) {
+                return 0;
+            }
+
+            q = strchr( q, SEMICOLON );
+
+            if ( !q ) {
+                return 0;
+            }
+            TIXMLASSERT( *q == SEMICOLON );
+
+            delta = q-p;
+            --q;
+
+            while ( *q != 'x' ) {
+                unsigned int digit = 0;
+
+                if ( *q >= '0' && *q <= '9' ) {
+                    digit = *q - '0';
+                }
+                else if ( *q >= 'a' && *q <= 'f' ) {
+                    digit = *q - 'a' + 10;
+                }
+                else if ( *q >= 'A' && *q <= 'F' ) {
+                    digit = *q - 'A' + 10;
+                }
+                else {
+                    return 0;
+                }
+                TIXMLASSERT( digit < 16 );
+                TIXMLASSERT( digit == 0 || mult <= UINT_MAX / digit );
+                const unsigned int digitScaled = mult * digit;
+                TIXMLASSERT( ucs <= ULONG_MAX - digitScaled );
+                ucs += digitScaled;
+                TIXMLASSERT( mult <= UINT_MAX / 16 );
+                mult *= 16;
+                --q;
+            }
+        }
+        else {
+            // Decimal.
+            const char* q = p+2;
+            if ( !(*q) ) {
+                return 0;
+            }
+
+            q = strchr( q, SEMICOLON );
+
+            if ( !q ) {
+                return 0;
+            }
+            TIXMLASSERT( *q == SEMICOLON );
+
+            delta = q-p;
+            --q;
+
+            while ( *q != '#' ) {
+                if ( *q >= '0' && *q <= '9' ) {
+                    const unsigned int digit = *q - '0';
+                    TIXMLASSERT( digit < 10 );
+                    TIXMLASSERT( digit == 0 || mult <= UINT_MAX / digit );
+                    const unsigned int digitScaled = mult * digit;
+                    TIXMLASSERT( ucs <= ULONG_MAX - digitScaled );
+                    ucs += digitScaled;
+                }
+                else {
+                    return 0;
+                }
+                TIXMLASSERT( mult <= UINT_MAX / 10 );
+                mult *= 10;
+                --q;
+            }
+        }
+        // convert the UCS to UTF-8
+        ConvertUTF32ToUTF8( ucs, value, length );
+        return p + delta + 1;
+    }
+    return p+1;
+}
+
+
+void XMLUtil::ToStr( int v, char* buffer, int bufferSize )
+{
+    TIXML_SNPRINTF( buffer, bufferSize, "%d", v );
+}
+
+
+void XMLUtil::ToStr( unsigned v, char* buffer, int bufferSize )
+{
+    TIXML_SNPRINTF( buffer, bufferSize, "%u", v );
+}
+
+
+void XMLUtil::ToStr( bool v, char* buffer, int bufferSize )
+{
+    TIXML_SNPRINTF( buffer, bufferSize, "%s", v ? writeBoolTrue : writeBoolFalse);
+}
+
+/*
+    ToStr() of a number is a very tricky topic.
+    https://github.com/leethomason/tinyxml2/issues/106
+*/
+void XMLUtil::ToStr( float v, char* buffer, int bufferSize )
+{
+    TIXML_SNPRINTF( buffer, bufferSize, "%.8g", v );
+}
+
+
+void XMLUtil::ToStr( double v, char* buffer, int bufferSize )
+{
+    TIXML_SNPRINTF( buffer, bufferSize, "%.17g", v );
+}
+
+
+void XMLUtil::ToStr(int64_t v, char* buffer, int bufferSize)
+{
+    // horrible syntax trick to make the compiler happy about %lld
+    TIXML_SNPRINTF(buffer, bufferSize, "%lld", (long long)v);
+}
+
+
+bool XMLUtil::ToInt( const char* str, int* value )
+{
+    if ( TIXML_SSCANF( str, "%d", value ) == 1 ) {
+        return true;
+    }
+    return false;
+}
+
+bool XMLUtil::ToUnsigned( const char* str, unsigned *value )
+{
+    if ( TIXML_SSCANF( str, "%u", value ) == 1 ) {
+        return true;
+    }
+    return false;
+}
+
+bool XMLUtil::ToBool( const char* str, bool* value )
+{
+    int ival = 0;
+    if ( ToInt( str, &ival )) {
+        *value = (ival==0) ? false : true;
+        return true;
+    }
+    if ( StringEqual( str, "true" ) ) {
+        *value = true;
+        return true;
+    }
+    else if ( StringEqual( str, "false" ) ) {
+        *value = false;
+        return true;
+    }
+    return false;
+}
+
+
+bool XMLUtil::ToFloat( const char* str, float* value )
+{
+    if ( TIXML_SSCANF( str, "%f", value ) == 1 ) {
+        return true;
+    }
+    return false;
+}
+
+
+bool XMLUtil::ToDouble( const char* str, double* value )
+{
+    if ( TIXML_SSCANF( str, "%lf", value ) == 1 ) {
+        return true;
+    }
+    return false;
+}
+
+
+bool XMLUtil::ToInt64(const char* str, int64_t* value)
+{
+    long long v = 0;	// horrible syntax trick to make the compiler happy about %lld
+    if (TIXML_SSCANF(str, "%lld", &v) == 1) {
+        *value = (int64_t)v;
+        return true;
+    }
+    return false;
+}
+
+
+char* XMLDocument::Identify( char* p, XMLNode** node )
+{
+    TIXMLASSERT( node );
+    TIXMLASSERT( p );
+    char* const start = p;
+    int const startLine = _parseCurLineNum;
+    p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum );
+    if( !*p ) {
+        *node = 0;
+        TIXMLASSERT( p );
+        return p;
+    }
+
+    // These strings define the matching patterns:
+    static const char* xmlHeader		= { "<?" };
+    static const char* commentHeader	= { "<!--" };
+    static const char* cdataHeader		= { "<![CDATA[" };
+    static const char* dtdHeader		= { "<!" };
+    static const char* elementHeader	= { "<" };	// and a header for everything else; check last.
+
+    static const int xmlHeaderLen		= 2;
+    static const int commentHeaderLen	= 4;
+    static const int cdataHeaderLen		= 9;
+    static const int dtdHeaderLen		= 2;
+    static const int elementHeaderLen	= 1;
+
+    TIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLUnknown ) );		// use same memory pool
+    TIXMLASSERT( sizeof( XMLComment ) == sizeof( XMLDeclaration ) );	// use same memory pool
+    XMLNode* returnNode = 0;
+    if ( XMLUtil::StringEqual( p, xmlHeader, xmlHeaderLen ) ) {
+        returnNode = CreateUnlinkedNode<XMLDeclaration>( _commentPool );
+        returnNode->_parseLineNum = _parseCurLineNum;
+        p += xmlHeaderLen;
+    }
+    else if ( XMLUtil::StringEqual( p, commentHeader, commentHeaderLen ) ) {
+        returnNode = CreateUnlinkedNode<XMLComment>( _commentPool );
+        returnNode->_parseLineNum = _parseCurLineNum;
+        p += commentHeaderLen;
+    }
+    else if ( XMLUtil::StringEqual( p, cdataHeader, cdataHeaderLen ) ) {
+        XMLText* text = CreateUnlinkedNode<XMLText>( _textPool );
+        returnNode = text;
+        returnNode->_parseLineNum = _parseCurLineNum;
+        p += cdataHeaderLen;
+        text->SetCData( true );
+    }
+    else if ( XMLUtil::StringEqual( p, dtdHeader, dtdHeaderLen ) ) {
+        returnNode = CreateUnlinkedNode<XMLUnknown>( _commentPool );
+        returnNode->_parseLineNum = _parseCurLineNum;
+        p += dtdHeaderLen;
+    }
+    else if ( XMLUtil::StringEqual( p, elementHeader, elementHeaderLen ) ) {
+        returnNode =  CreateUnlinkedNode<XMLElement>( _elementPool );
+        returnNode->_parseLineNum = _parseCurLineNum;
+        p += elementHeaderLen;
+    }
+    else {
+        returnNode = CreateUnlinkedNode<XMLText>( _textPool );
+        returnNode->_parseLineNum = _parseCurLineNum; // Report line of first non-whitespace character
+        p = start;	// Back it up, all the text counts.
+        _parseCurLineNum = startLine;
+    }
+
+    TIXMLASSERT( returnNode );
+    TIXMLASSERT( p );
+    *node = returnNode;
+    return p;
+}
+
+
+bool XMLDocument::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    if ( visitor->VisitEnter( *this ) ) {
+        for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() ) {
+            if ( !node->Accept( visitor ) ) {
+                break;
+            }
+        }
+    }
+    return visitor->VisitExit( *this );
+}
+
+
+// --------- XMLNode ----------- //
+
+XMLNode::XMLNode( XMLDocument* doc ) :
+    _document( doc ),
+    _parent( 0 ),
+    _value(),
+    _parseLineNum( 0 ),
+    _firstChild( 0 ), _lastChild( 0 ),
+    _prev( 0 ), _next( 0 ),
+    _userData( 0 ),
+    _memPool( 0 )
+{
+}
+
+
+XMLNode::~XMLNode()
+{
+    DeleteChildren();
+    if ( _parent ) {
+        _parent->Unlink( this );
+    }
+}
+
+const char* XMLNode::Value() const
+{
+    // Edge case: XMLDocuments don't have a Value. Return null.
+    if ( this->ToDocument() )
+        return 0;
+    return _value.GetStr();
+}
+
+void XMLNode::SetValue( const char* str, bool staticMem )
+{
+    if ( staticMem ) {
+        _value.SetInternedStr( str );
+    }
+    else {
+        _value.SetStr( str );
+    }
+}
+
+XMLNode* XMLNode::DeepClone(XMLDocument* target) const
+{
+    XMLNode* clone = this->ShallowClone(target);
+    if (!clone) return 0;
+
+    for (const XMLNode* child = this->FirstChild(); child; child = child->NextSibling()) {
+        XMLNode* childClone = child->DeepClone(target);
+        TIXMLASSERT(childClone);
+        clone->InsertEndChild(childClone);
+    }
+    return clone;
+}
+
+void XMLNode::DeleteChildren()
+{
+    while( _firstChild ) {
+        TIXMLASSERT( _lastChild );
+        DeleteChild( _firstChild );
+    }
+    _firstChild = _lastChild = 0;
+}
+
+
+void XMLNode::Unlink( XMLNode* child )
+{
+    TIXMLASSERT( child );
+    TIXMLASSERT( child->_document == _document );
+    TIXMLASSERT( child->_parent == this );
+    if ( child == _firstChild ) {
+        _firstChild = _firstChild->_next;
+    }
+    if ( child == _lastChild ) {
+        _lastChild = _lastChild->_prev;
+    }
+
+    if ( child->_prev ) {
+        child->_prev->_next = child->_next;
+    }
+    if ( child->_next ) {
+        child->_next->_prev = child->_prev;
+    }
+    child->_next = 0;
+    child->_prev = 0;
+    child->_parent = 0;
+}
+
+
+void XMLNode::DeleteChild( XMLNode* node )
+{
+    TIXMLASSERT( node );
+    TIXMLASSERT( node->_document == _document );
+    TIXMLASSERT( node->_parent == this );
+    Unlink( node );
+    TIXMLASSERT(node->_prev == 0);
+    TIXMLASSERT(node->_next == 0);
+    TIXMLASSERT(node->_parent == 0);
+    DeleteNode( node );
+}
+
+
+XMLNode* XMLNode::InsertEndChild( XMLNode* addThis )
+{
+    TIXMLASSERT( addThis );
+    if ( addThis->_document != _document ) {
+        TIXMLASSERT( false );
+        return 0;
+    }
+    InsertChildPreamble( addThis );
+
+    if ( _lastChild ) {
+        TIXMLASSERT( _firstChild );
+        TIXMLASSERT( _lastChild->_next == 0 );
+        _lastChild->_next = addThis;
+        addThis->_prev = _lastChild;
+        _lastChild = addThis;
+
+        addThis->_next = 0;
+    }
+    else {
+        TIXMLASSERT( _firstChild == 0 );
+        _firstChild = _lastChild = addThis;
+
+        addThis->_prev = 0;
+        addThis->_next = 0;
+    }
+    addThis->_parent = this;
+    return addThis;
+}
+
+
+XMLNode* XMLNode::InsertFirstChild( XMLNode* addThis )
+{
+    TIXMLASSERT( addThis );
+    if ( addThis->_document != _document ) {
+        TIXMLASSERT( false );
+        return 0;
+    }
+    InsertChildPreamble( addThis );
+
+    if ( _firstChild ) {
+        TIXMLASSERT( _lastChild );
+        TIXMLASSERT( _firstChild->_prev == 0 );
+
+        _firstChild->_prev = addThis;
+        addThis->_next = _firstChild;
+        _firstChild = addThis;
+
+        addThis->_prev = 0;
+    }
+    else {
+        TIXMLASSERT( _lastChild == 0 );
+        _firstChild = _lastChild = addThis;
+
+        addThis->_prev = 0;
+        addThis->_next = 0;
+    }
+    addThis->_parent = this;
+    return addThis;
+}
+
+
+XMLNode* XMLNode::InsertAfterChild( XMLNode* afterThis, XMLNode* addThis )
+{
+    TIXMLASSERT( addThis );
+    if ( addThis->_document != _document ) {
+        TIXMLASSERT( false );
+        return 0;
+    }
+
+    TIXMLASSERT( afterThis );
+
+    if ( afterThis->_parent != this ) {
+        TIXMLASSERT( false );
+        return 0;
+    }
+    if ( afterThis == addThis ) {
+        // Current state: BeforeThis -> AddThis -> OneAfterAddThis
+        // Now AddThis must disappear from it's location and then
+        // reappear between BeforeThis and OneAfterAddThis.
+        // So just leave it where it is.
+        return addThis;
+    }
+
+    if ( afterThis->_next == 0 ) {
+        // The last node or the only node.
+        return InsertEndChild( addThis );
+    }
+    InsertChildPreamble( addThis );
+    addThis->_prev = afterThis;
+    addThis->_next = afterThis->_next;
+    afterThis->_next->_prev = addThis;
+    afterThis->_next = addThis;
+    addThis->_parent = this;
+    return addThis;
+}
+
+
+
+
+const XMLElement* XMLNode::FirstChildElement( const char* name ) const
+{
+    for( const XMLNode* node = _firstChild; node; node = node->_next ) {
+        const XMLElement* element = node->ToElementWithName( name );
+        if ( element ) {
+            return element;
+        }
+    }
+    return 0;
+}
+
+
+const XMLElement* XMLNode::LastChildElement( const char* name ) const
+{
+    for( const XMLNode* node = _lastChild; node; node = node->_prev ) {
+        const XMLElement* element = node->ToElementWithName( name );
+        if ( element ) {
+            return element;
+        }
+    }
+    return 0;
+}
+
+
+const XMLElement* XMLNode::NextSiblingElement( const char* name ) const
+{
+    for( const XMLNode* node = _next; node; node = node->_next ) {
+        const XMLElement* element = node->ToElementWithName( name );
+        if ( element ) {
+            return element;
+        }
+    }
+    return 0;
+}
+
+
+const XMLElement* XMLNode::PreviousSiblingElement( const char* name ) const
+{
+    for( const XMLNode* node = _prev; node; node = node->_prev ) {
+        const XMLElement* element = node->ToElementWithName( name );
+        if ( element ) {
+            return element;
+        }
+    }
+    return 0;
+}
+
+
+char* XMLNode::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
+{
+    // This is a recursive method, but thinking about it "at the current level"
+    // it is a pretty simple flat list:
+    //		<foo/>
+    //		<!-- comment -->
+    //
+    // With a special case:
+    //		<foo>
+    //		</foo>
+    //		<!-- comment -->
+    //
+    // Where the closing element (/foo) *must* be the next thing after the opening
+    // element, and the names must match. BUT the tricky bit is that the closing
+    // element will be read by the child.
+    //
+    // 'endTag' is the end tag for this node, it is returned by a call to a child.
+    // 'parentEnd' is the end tag for the parent, which is filled in and returned.
+
+    while( p && *p ) {
+        XMLNode* node = 0;
+
+        p = _document->Identify( p, &node );
+        TIXMLASSERT( p );
+        if ( node == 0 ) {
+            break;
+        }
+
+        int initialLineNum = node->_parseLineNum;
+
+        StrPair endTag;
+        p = node->ParseDeep( p, &endTag, curLineNumPtr );
+        if ( !p ) {
+            DeleteNode( node );
+            if ( !_document->Error() ) {
+                _document->SetError( XML_ERROR_PARSING, initialLineNum, 0);
+            }
+            break;
+        }
+
+        XMLDeclaration* decl = node->ToDeclaration();
+        if ( decl ) {
+            // Declarations are only allowed at document level
+            bool wellLocated = ( ToDocument() != 0 );
+            if ( wellLocated ) {
+                // Multiple declarations are allowed but all declarations
+                // must occur before anything else
+                for ( const XMLNode* existingNode = _document->FirstChild(); existingNode; existingNode = existingNode->NextSibling() ) {
+                    if ( !existingNode->ToDeclaration() ) {
+                        wellLocated = false;
+                        break;
+                    }
+                }
+            }
+            if ( !wellLocated ) {
+                _document->SetError( XML_ERROR_PARSING_DECLARATION, initialLineNum, "XMLDeclaration value=%s", decl->Value());
+                DeleteNode( node );
+                break;
+            }
+        }
+
+        XMLElement* ele = node->ToElement();
+        if ( ele ) {
+            // We read the end tag. Return it to the parent.
+            if ( ele->ClosingType() == XMLElement::CLOSING ) {
+                if ( parentEndTag ) {
+                    ele->_value.TransferTo( parentEndTag );
+                }
+                node->_memPool->SetTracked();   // created and then immediately deleted.
+                DeleteNode( node );
+                return p;
+            }
+
+            // Handle an end tag returned to this level.
+            // And handle a bunch of annoying errors.
+            bool mismatch = false;
+            if ( endTag.Empty() ) {
+                if ( ele->ClosingType() == XMLElement::OPEN ) {
+                    mismatch = true;
+                }
+            }
+            else {
+                if ( ele->ClosingType() != XMLElement::OPEN ) {
+                    mismatch = true;
+                }
+                else if ( !XMLUtil::StringEqual( endTag.GetStr(), ele->Name() ) ) {
+                    mismatch = true;
+                }
+            }
+            if ( mismatch ) {
+                _document->SetError( XML_ERROR_MISMATCHED_ELEMENT, initialLineNum, "XMLElement name=%s", ele->Name());
+                DeleteNode( node );
+                break;
+            }
+        }
+        InsertEndChild( node );
+    }
+    return 0;
+}
+
+/*static*/ void XMLNode::DeleteNode( XMLNode* node )
+{
+    if ( node == 0 ) {
+        return;
+    }
+    TIXMLASSERT(node->_document);
+    if (!node->ToDocument()) {
+        node->_document->MarkInUse(node);
+    }
+
+    MemPool* pool = node->_memPool;
+    node->~XMLNode();
+    pool->Free( node );
+}
+
+void XMLNode::InsertChildPreamble( XMLNode* insertThis ) const
+{
+    TIXMLASSERT( insertThis );
+    TIXMLASSERT( insertThis->_document == _document );
+
+    if (insertThis->_parent) {
+        insertThis->_parent->Unlink( insertThis );
+    }
+    else {
+        insertThis->_document->MarkInUse(insertThis);
+        insertThis->_memPool->SetTracked();
+    }
+}
+
+const XMLElement* XMLNode::ToElementWithName( const char* name ) const
+{
+    const XMLElement* element = this->ToElement();
+    if ( element == 0 ) {
+        return 0;
+    }
+    if ( name == 0 ) {
+        return element;
+    }
+    if ( XMLUtil::StringEqual( element->Name(), name ) ) {
+       return element;
+    }
+    return 0;
+}
+
+// --------- XMLText ---------- //
+char* XMLText::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
+{
+    if ( this->CData() ) {
+        p = _value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
+        if ( !p ) {
+            _document->SetError( XML_ERROR_PARSING_CDATA, _parseLineNum, 0 );
+        }
+        return p;
+    }
+    else {
+        int flags = _document->ProcessEntities() ? StrPair::TEXT_ELEMENT : StrPair::TEXT_ELEMENT_LEAVE_ENTITIES;
+        if ( _document->WhitespaceMode() == COLLAPSE_WHITESPACE ) {
+            flags |= StrPair::NEEDS_WHITESPACE_COLLAPSING;
+        }
+
+        p = _value.ParseText( p, "<", flags, curLineNumPtr );
+        if ( p && *p ) {
+            return p-1;
+        }
+        if ( !p ) {
+            _document->SetError( XML_ERROR_PARSING_TEXT, _parseLineNum, 0 );
+        }
+    }
+    return 0;
+}
+
+
+XMLNode* XMLText::ShallowClone( XMLDocument* doc ) const
+{
+    if ( !doc ) {
+        doc = _document;
+    }
+    XMLText* text = doc->NewText( Value() );	// fixme: this will always allocate memory. Intern?
+    text->SetCData( this->CData() );
+    return text;
+}
+
+
+bool XMLText::ShallowEqual( const XMLNode* compare ) const
+{
+    TIXMLASSERT( compare );
+    const XMLText* text = compare->ToText();
+    return ( text && XMLUtil::StringEqual( text->Value(), Value() ) );
+}
+
+
+bool XMLText::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    return visitor->Visit( *this );
+}
+
+
+// --------- XMLComment ---------- //
+
+XMLComment::XMLComment( XMLDocument* doc ) : XMLNode( doc )
+{
+}
+
+
+XMLComment::~XMLComment()
+{
+}
+
+
+char* XMLComment::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
+{
+    // Comment parses as text.
+    p = _value.ParseText( p, "-->", StrPair::COMMENT, curLineNumPtr );
+    if ( p == 0 ) {
+        _document->SetError( XML_ERROR_PARSING_COMMENT, _parseLineNum, 0 );
+    }
+    return p;
+}
+
+
+XMLNode* XMLComment::ShallowClone( XMLDocument* doc ) const
+{
+    if ( !doc ) {
+        doc = _document;
+    }
+    XMLComment* comment = doc->NewComment( Value() );	// fixme: this will always allocate memory. Intern?
+    return comment;
+}
+
+
+bool XMLComment::ShallowEqual( const XMLNode* compare ) const
+{
+    TIXMLASSERT( compare );
+    const XMLComment* comment = compare->ToComment();
+    return ( comment && XMLUtil::StringEqual( comment->Value(), Value() ));
+}
+
+
+bool XMLComment::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    return visitor->Visit( *this );
+}
+
+
+// --------- XMLDeclaration ---------- //
+
+XMLDeclaration::XMLDeclaration( XMLDocument* doc ) : XMLNode( doc )
+{
+}
+
+
+XMLDeclaration::~XMLDeclaration()
+{
+    //printf( "~XMLDeclaration\n" );
+}
+
+
+char* XMLDeclaration::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
+{
+    // Declaration parses as text.
+    p = _value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
+    if ( p == 0 ) {
+        _document->SetError( XML_ERROR_PARSING_DECLARATION, _parseLineNum, 0 );
+    }
+    return p;
+}
+
+
+XMLNode* XMLDeclaration::ShallowClone( XMLDocument* doc ) const
+{
+    if ( !doc ) {
+        doc = _document;
+    }
+    XMLDeclaration* dec = doc->NewDeclaration( Value() );	// fixme: this will always allocate memory. Intern?
+    return dec;
+}
+
+
+bool XMLDeclaration::ShallowEqual( const XMLNode* compare ) const
+{
+    TIXMLASSERT( compare );
+    const XMLDeclaration* declaration = compare->ToDeclaration();
+    return ( declaration && XMLUtil::StringEqual( declaration->Value(), Value() ));
+}
+
+
+
+bool XMLDeclaration::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    return visitor->Visit( *this );
+}
+
+// --------- XMLUnknown ---------- //
+
+XMLUnknown::XMLUnknown( XMLDocument* doc ) : XMLNode( doc )
+{
+}
+
+
+XMLUnknown::~XMLUnknown()
+{
+}
+
+
+char* XMLUnknown::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
+{
+    // Unknown parses as text.
+    p = _value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
+    if ( !p ) {
+        _document->SetError( XML_ERROR_PARSING_UNKNOWN, _parseLineNum, 0 );
+    }
+    return p;
+}
+
+
+XMLNode* XMLUnknown::ShallowClone( XMLDocument* doc ) const
+{
+    if ( !doc ) {
+        doc = _document;
+    }
+    XMLUnknown* text = doc->NewUnknown( Value() );	// fixme: this will always allocate memory. Intern?
+    return text;
+}
+
+
+bool XMLUnknown::ShallowEqual( const XMLNode* compare ) const
+{
+    TIXMLASSERT( compare );
+    const XMLUnknown* unknown = compare->ToUnknown();
+    return ( unknown && XMLUtil::StringEqual( unknown->Value(), Value() ));
+}
+
+
+bool XMLUnknown::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    return visitor->Visit( *this );
+}
+
+// --------- XMLAttribute ---------- //
+
+const char* XMLAttribute::Name() const
+{
+    return _name.GetStr();
+}
+
+const char* XMLAttribute::Value() const
+{
+    return _value.GetStr();
+}
+
+char* XMLAttribute::ParseDeep( char* p, bool processEntities, int* curLineNumPtr )
+{
+    // Parse using the name rules: bug fix, was using ParseText before
+    p = _name.ParseName( p );
+    if ( !p || !*p ) {
+        return 0;
+    }
+
+    // Skip white space before =
+    p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );
+    if ( *p != '=' ) {
+        return 0;
+    }
+
+    ++p;	// move up to opening quote
+    p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );
+    if ( *p != '\"' && *p != '\'' ) {
+        return 0;
+    }
+
+    char endTag[2] = { *p, 0 };
+    ++p;	// move past opening quote
+
+    p = _value.ParseText( p, endTag, processEntities ? StrPair::ATTRIBUTE_VALUE : StrPair::ATTRIBUTE_VALUE_LEAVE_ENTITIES, curLineNumPtr );
+    return p;
+}
+
+
+void XMLAttribute::SetName( const char* n )
+{
+    _name.SetStr( n );
+}
+
+
+XMLError XMLAttribute::QueryIntValue( int* value ) const
+{
+    if ( XMLUtil::ToInt( Value(), value )) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+XMLError XMLAttribute::QueryUnsignedValue( unsigned int* value ) const
+{
+    if ( XMLUtil::ToUnsigned( Value(), value )) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+XMLError XMLAttribute::QueryInt64Value(int64_t* value) const
+{
+    if (XMLUtil::ToInt64(Value(), value)) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+XMLError XMLAttribute::QueryBoolValue( bool* value ) const
+{
+    if ( XMLUtil::ToBool( Value(), value )) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+XMLError XMLAttribute::QueryFloatValue( float* value ) const
+{
+    if ( XMLUtil::ToFloat( Value(), value )) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+XMLError XMLAttribute::QueryDoubleValue( double* value ) const
+{
+    if ( XMLUtil::ToDouble( Value(), value )) {
+        return XML_SUCCESS;
+    }
+    return XML_WRONG_ATTRIBUTE_TYPE;
+}
+
+
+void XMLAttribute::SetAttribute( const char* v )
+{
+    _value.SetStr( v );
+}
+
+
+void XMLAttribute::SetAttribute( int v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    _value.SetStr( buf );
+}
+
+
+void XMLAttribute::SetAttribute( unsigned v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    _value.SetStr( buf );
+}
+
+
+void XMLAttribute::SetAttribute(int64_t v)
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr(v, buf, BUF_SIZE);
+    _value.SetStr(buf);
+}
+
+
+
+void XMLAttribute::SetAttribute( bool v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    _value.SetStr( buf );
+}
+
+void XMLAttribute::SetAttribute( double v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    _value.SetStr( buf );
+}
+
+void XMLAttribute::SetAttribute( float v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    _value.SetStr( buf );
+}
+
+
+// --------- XMLElement ---------- //
+XMLElement::XMLElement( XMLDocument* doc ) : XMLNode( doc ),
+    _closingType( OPEN ),
+    _rootAttribute( 0 )
+{
+}
+
+
+XMLElement::~XMLElement()
+{
+    while( _rootAttribute ) {
+        XMLAttribute* next = _rootAttribute->_next;
+        DeleteAttribute( _rootAttribute );
+        _rootAttribute = next;
+    }
+}
+
+
+const XMLAttribute* XMLElement::FindAttribute( const char* name ) const
+{
+    for( XMLAttribute* a = _rootAttribute; a; a = a->_next ) {
+        if ( XMLUtil::StringEqual( a->Name(), name ) ) {
+            return a;
+        }
+    }
+    return 0;
+}
+
+
+const char* XMLElement::Attribute( const char* name, const char* value ) const
+{
+    const XMLAttribute* a = FindAttribute( name );
+    if ( !a ) {
+        return 0;
+    }
+    if ( !value || XMLUtil::StringEqual( a->Value(), value )) {
+        return a->Value();
+    }
+    return 0;
+}
+
+int XMLElement::IntAttribute(const char* name, int defaultValue) const
+{
+    int i = defaultValue;
+    QueryIntAttribute(name, &i);
+    return i;
+}
+
+unsigned XMLElement::UnsignedAttribute(const char* name, unsigned defaultValue) const
+{
+    unsigned i = defaultValue;
+    QueryUnsignedAttribute(name, &i);
+    return i;
+}
+
+int64_t XMLElement::Int64Attribute(const char* name, int64_t defaultValue) const
+{
+    int64_t i = defaultValue;
+    QueryInt64Attribute(name, &i);
+    return i;
+}
+
+bool XMLElement::BoolAttribute(const char* name, bool defaultValue) const
+{
+    bool b = defaultValue;
+    QueryBoolAttribute(name, &b);
+    return b;
+}
+
+double XMLElement::DoubleAttribute(const char* name, double defaultValue) const
+{
+    double d = defaultValue;
+    QueryDoubleAttribute(name, &d);
+    return d;
+}
+
+float XMLElement::FloatAttribute(const char* name, float defaultValue) const
+{
+    float f = defaultValue;
+    QueryFloatAttribute(name, &f);
+    return f;
+}
+
+const char* XMLElement::GetText() const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        return FirstChild()->Value();
+    }
+    return 0;
+}
+
+
+void	XMLElement::SetText( const char* inText )
+{
+    if ( FirstChild() && FirstChild()->ToText() )
+        FirstChild()->SetValue( inText );
+    else {
+        XMLText*	theText = GetDocument()->NewText( inText );
+        InsertFirstChild( theText );
+    }
+}
+
+
+void XMLElement::SetText( int v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    SetText( buf );
+}
+
+
+void XMLElement::SetText( unsigned v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    SetText( buf );
+}
+
+
+void XMLElement::SetText(int64_t v)
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr(v, buf, BUF_SIZE);
+    SetText(buf);
+}
+
+
+void XMLElement::SetText( bool v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    SetText( buf );
+}
+
+
+void XMLElement::SetText( float v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    SetText( buf );
+}
+
+
+void XMLElement::SetText( double v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    SetText( buf );
+}
+
+
+XMLError XMLElement::QueryIntText( int* ival ) const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        const char* t = FirstChild()->Value();
+        if ( XMLUtil::ToInt( t, ival ) ) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+
+XMLError XMLElement::QueryUnsignedText( unsigned* uval ) const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        const char* t = FirstChild()->Value();
+        if ( XMLUtil::ToUnsigned( t, uval ) ) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+
+XMLError XMLElement::QueryInt64Text(int64_t* ival) const
+{
+    if (FirstChild() && FirstChild()->ToText()) {
+        const char* t = FirstChild()->Value();
+        if (XMLUtil::ToInt64(t, ival)) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+
+XMLError XMLElement::QueryBoolText( bool* bval ) const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        const char* t = FirstChild()->Value();
+        if ( XMLUtil::ToBool( t, bval ) ) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+
+XMLError XMLElement::QueryDoubleText( double* dval ) const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        const char* t = FirstChild()->Value();
+        if ( XMLUtil::ToDouble( t, dval ) ) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+
+XMLError XMLElement::QueryFloatText( float* fval ) const
+{
+    if ( FirstChild() && FirstChild()->ToText() ) {
+        const char* t = FirstChild()->Value();
+        if ( XMLUtil::ToFloat( t, fval ) ) {
+            return XML_SUCCESS;
+        }
+        return XML_CAN_NOT_CONVERT_TEXT;
+    }
+    return XML_NO_TEXT_NODE;
+}
+
+int XMLElement::IntText(int defaultValue) const
+{
+    int i = defaultValue;
+    QueryIntText(&i);
+    return i;
+}
+
+unsigned XMLElement::UnsignedText(unsigned defaultValue) const
+{
+    unsigned i = defaultValue;
+    QueryUnsignedText(&i);
+    return i;
+}
+
+int64_t XMLElement::Int64Text(int64_t defaultValue) const
+{
+    int64_t i = defaultValue;
+    QueryInt64Text(&i);
+    return i;
+}
+
+bool XMLElement::BoolText(bool defaultValue) const
+{
+    bool b = defaultValue;
+    QueryBoolText(&b);
+    return b;
+}
+
+double XMLElement::DoubleText(double defaultValue) const
+{
+    double d = defaultValue;
+    QueryDoubleText(&d);
+    return d;
+}
+
+float XMLElement::FloatText(float defaultValue) const
+{
+    float f = defaultValue;
+    QueryFloatText(&f);
+    return f;
+}
+
+
+XMLAttribute* XMLElement::FindOrCreateAttribute( const char* name )
+{
+    XMLAttribute* last = 0;
+    XMLAttribute* attrib = 0;
+    for( attrib = _rootAttribute;
+            attrib;
+            last = attrib, attrib = attrib->_next ) {
+        if ( XMLUtil::StringEqual( attrib->Name(), name ) ) {
+            break;
+        }
+    }
+    if ( !attrib ) {
+        attrib = CreateAttribute();
+        TIXMLASSERT( attrib );
+        if ( last ) {
+            TIXMLASSERT( last->_next == 0 );
+            last->_next = attrib;
+        }
+        else {
+            TIXMLASSERT( _rootAttribute == 0 );
+            _rootAttribute = attrib;
+        }
+        attrib->SetName( name );
+    }
+    return attrib;
+}
+
+
+void XMLElement::DeleteAttribute( const char* name )
+{
+    XMLAttribute* prev = 0;
+    for( XMLAttribute* a=_rootAttribute; a; a=a->_next ) {
+        if ( XMLUtil::StringEqual( name, a->Name() ) ) {
+            if ( prev ) {
+                prev->_next = a->_next;
+            }
+            else {
+                _rootAttribute = a->_next;
+            }
+            DeleteAttribute( a );
+            break;
+        }
+        prev = a;
+    }
+}
+
+
+char* XMLElement::ParseAttributes( char* p, int* curLineNumPtr )
+{
+    XMLAttribute* prevAttribute = 0;
+
+    // Read the attributes.
+    while( p ) {
+        p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );
+        if ( !(*p) ) {
+            _document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, "XMLElement name=%s", Name() );
+            return 0;
+        }
+
+        // attribute.
+        if (XMLUtil::IsNameStartChar( *p ) ) {
+            XMLAttribute* attrib = CreateAttribute();
+            TIXMLASSERT( attrib );
+            attrib->_parseLineNum = _document->_parseCurLineNum;
+
+            int attrLineNum = attrib->_parseLineNum;
+
+            p = attrib->ParseDeep( p, _document->ProcessEntities(), curLineNumPtr );
+            if ( !p || Attribute( attrib->Name() ) ) {
+                DeleteAttribute( attrib );
+                _document->SetError( XML_ERROR_PARSING_ATTRIBUTE, attrLineNum, "XMLElement name=%s", Name() );
+                return 0;
+            }
+            // There is a minor bug here: if the attribute in the source xml
+            // document is duplicated, it will not be detected and the
+            // attribute will be doubly added. However, tracking the 'prevAttribute'
+            // avoids re-scanning the attribute list. Preferring performance for
+            // now, may reconsider in the future.
+            if ( prevAttribute ) {
+                TIXMLASSERT( prevAttribute->_next == 0 );
+                prevAttribute->_next = attrib;
+            }
+            else {
+                TIXMLASSERT( _rootAttribute == 0 );
+                _rootAttribute = attrib;
+            }
+            prevAttribute = attrib;
+        }
+        // end of the tag
+        else if ( *p == '>' ) {
+            ++p;
+            break;
+        }
+        // end of the tag
+        else if ( *p == '/' && *(p+1) == '>' ) {
+            _closingType = CLOSED;
+            return p+2;	// done; sealed element.
+        }
+        else {
+            _document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, 0 );
+            return 0;
+        }
+    }
+    return p;
+}
+
+void XMLElement::DeleteAttribute( XMLAttribute* attribute )
+{
+    if ( attribute == 0 ) {
+        return;
+    }
+    MemPool* pool = attribute->_memPool;
+    attribute->~XMLAttribute();
+    pool->Free( attribute );
+}
+
+XMLAttribute* XMLElement::CreateAttribute()
+{
+    TIXMLASSERT( sizeof( XMLAttribute ) == _document->_attributePool.ItemSize() );
+    XMLAttribute* attrib = new (_document->_attributePool.Alloc() ) XMLAttribute();
+    TIXMLASSERT( attrib );
+    attrib->_memPool = &_document->_attributePool;
+    attrib->_memPool->SetTracked();
+    return attrib;
+}
+
+//
+//	<ele></ele>
+//	<ele>foo<b>bar</b></ele>
+//
+char* XMLElement::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
+{
+    // Read the element name.
+    p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );
+
+    // The closing element is the </element> form. It is
+    // parsed just like a regular element then deleted from
+    // the DOM.
+    if ( *p == '/' ) {
+        _closingType = CLOSING;
+        ++p;
+    }
+
+    p = _value.ParseName( p );
+    if ( _value.Empty() ) {
+        return 0;
+    }
+
+    p = ParseAttributes( p, curLineNumPtr );
+    if ( !p || !*p || _closingType != OPEN ) {
+        return p;
+    }
+
+    p = XMLNode::ParseDeep( p, parentEndTag, curLineNumPtr );
+    return p;
+}
+
+
+
+XMLNode* XMLElement::ShallowClone( XMLDocument* doc ) const
+{
+    if ( !doc ) {
+        doc = _document;
+    }
+    XMLElement* element = doc->NewElement( Value() );					// fixme: this will always allocate memory. Intern?
+    for( const XMLAttribute* a=FirstAttribute(); a; a=a->Next() ) {
+        element->SetAttribute( a->Name(), a->Value() );					// fixme: this will always allocate memory. Intern?
+    }
+    return element;
+}
+
+
+bool XMLElement::ShallowEqual( const XMLNode* compare ) const
+{
+    TIXMLASSERT( compare );
+    const XMLElement* other = compare->ToElement();
+    if ( other && XMLUtil::StringEqual( other->Name(), Name() )) {
+
+        const XMLAttribute* a=FirstAttribute();
+        const XMLAttribute* b=other->FirstAttribute();
+
+        while ( a && b ) {
+            if ( !XMLUtil::StringEqual( a->Value(), b->Value() ) ) {
+                return false;
+            }
+            a = a->Next();
+            b = b->Next();
+        }
+        if ( a || b ) {
+            // different count
+            return false;
+        }
+        return true;
+    }
+    return false;
+}
+
+
+bool XMLElement::Accept( XMLVisitor* visitor ) const
+{
+    TIXMLASSERT( visitor );
+    if ( visitor->VisitEnter( *this, _rootAttribute ) ) {
+        for ( const XMLNode* node=FirstChild(); node; node=node->NextSibling() ) {
+            if ( !node->Accept( visitor ) ) {
+                break;
+            }
+        }
+    }
+    return visitor->VisitExit( *this );
+}
+
+
+// --------- XMLDocument ----------- //
+
+// Warning: List must match 'enum XMLError'
+const char* XMLDocument::_errorNames[XML_ERROR_COUNT] = {
+    "XML_SUCCESS",
+    "XML_NO_ATTRIBUTE",
+    "XML_WRONG_ATTRIBUTE_TYPE",
+    "XML_ERROR_FILE_NOT_FOUND",
+    "XML_ERROR_FILE_COULD_NOT_BE_OPENED",
+    "XML_ERROR_FILE_READ_ERROR",
+    "UNUSED_XML_ERROR_ELEMENT_MISMATCH",
+    "XML_ERROR_PARSING_ELEMENT",
+    "XML_ERROR_PARSING_ATTRIBUTE",
+    "UNUSED_XML_ERROR_IDENTIFYING_TAG",
+    "XML_ERROR_PARSING_TEXT",
+    "XML_ERROR_PARSING_CDATA",
+    "XML_ERROR_PARSING_COMMENT",
+    "XML_ERROR_PARSING_DECLARATION",
+    "XML_ERROR_PARSING_UNKNOWN",
+    "XML_ERROR_EMPTY_DOCUMENT",
+    "XML_ERROR_MISMATCHED_ELEMENT",
+    "XML_ERROR_PARSING",
+    "XML_CAN_NOT_CONVERT_TEXT",
+    "XML_NO_TEXT_NODE"
+};
+
+
+XMLDocument::XMLDocument( bool processEntities, Whitespace whitespaceMode ) :
+    XMLNode( 0 ),
+    _writeBOM( false ),
+    _processEntities( processEntities ),
+    _errorID(XML_SUCCESS),
+    _whitespaceMode( whitespaceMode ),
+    _errorStr(),
+    _errorLineNum( 0 ),
+    _charBuffer( 0 ),
+    _parseCurLineNum( 0 ),
+    _unlinked(),
+    _elementPool(),
+    _attributePool(),
+    _textPool(),
+    _commentPool()
+{
+    // avoid VC++ C4355 warning about 'this' in initializer list (C4355 is off by default in VS2012+)
+    _document = this;
+}
+
+
+XMLDocument::~XMLDocument()
+{
+    Clear();
+}
+
+
+void XMLDocument::MarkInUse(XMLNode* node)
+{
+    TIXMLASSERT(node);
+    TIXMLASSERT(node->_parent == 0);
+
+    for (int i = 0; i < _unlinked.Size(); ++i) {
+        if (node == _unlinked[i]) {
+            _unlinked.SwapRemove(i);
+            break;
+        }
+    }
+}
+
+void XMLDocument::Clear()
+{
+    DeleteChildren();
+    while( _unlinked.Size()) {
+        DeleteNode(_unlinked[0]);	// Will remove from _unlinked as part of delete.
+    }
+
+#ifdef DEBUG
+    const bool hadError = Error();
+#endif
+    ClearError();
+
+    Aws::DeleteArray(_charBuffer);
+    _charBuffer = 0;
+
+#if 0
+    _textPool.Trace( "text" );
+    _elementPool.Trace( "element" );
+    _commentPool.Trace( "comment" );
+    _attributePool.Trace( "attribute" );
+#endif
+
+#ifdef DEBUG
+    if ( !hadError ) {
+        TIXMLASSERT( _elementPool.CurrentAllocs()   == _elementPool.Untracked() );
+        TIXMLASSERT( _attributePool.CurrentAllocs() == _attributePool.Untracked() );
+        TIXMLASSERT( _textPool.CurrentAllocs()      == _textPool.Untracked() );
+        TIXMLASSERT( _commentPool.CurrentAllocs()   == _commentPool.Untracked() );
+    }
+#endif
+}
+
+
+void XMLDocument::DeepCopy(XMLDocument* target) const
+{
+    TIXMLASSERT(target);
+    if (target == this) {
+        return; // technically success - a no-op.
+    }
+
+    target->Clear();
+    for (const XMLNode* node = this->FirstChild(); node; node = node->NextSibling()) {
+        target->InsertEndChild(node->DeepClone(target));
+    }
+}
+
+XMLElement* XMLDocument::NewElement( const char* name )
+{
+    XMLElement* ele = CreateUnlinkedNode<XMLElement>( _elementPool );
+    ele->SetName( name );
+    return ele;
+}
+
+
+XMLComment* XMLDocument::NewComment( const char* str )
+{
+    XMLComment* comment = CreateUnlinkedNode<XMLComment>( _commentPool );
+    comment->SetValue( str );
+    return comment;
+}
+
+
+XMLText* XMLDocument::NewText( const char* str )
+{
+    XMLText* text = CreateUnlinkedNode<XMLText>( _textPool );
+    text->SetValue( str );
+    return text;
+}
+
+
+XMLDeclaration* XMLDocument::NewDeclaration( const char* str )
+{
+    XMLDeclaration* dec = CreateUnlinkedNode<XMLDeclaration>( _commentPool );
+    dec->SetValue( str ? str : "xml version=\"1.0\" encoding=\"UTF-8\"" );
+    return dec;
+}
+
+
+XMLUnknown* XMLDocument::NewUnknown( const char* str )
+{
+    XMLUnknown* unk = CreateUnlinkedNode<XMLUnknown>( _commentPool );
+    unk->SetValue( str );
+    return unk;
+}
+
+static FILE* callfopen( const char* filepath, const char* mode )
+{
+    TIXMLASSERT( filepath );
+    TIXMLASSERT( mode );
+#if defined(_MSC_VER) && (_MSC_VER >= 1400 ) && (!defined WINCE)
+    FILE* fp = 0;
+    errno_t err = fopen_s( &fp, filepath, mode );
+    if ( err ) {
+        return 0;
+    }
+#else
+    FILE* fp = fopen( filepath, mode );
+#endif
+    return fp;
+}
+
+void XMLDocument::DeleteNode( XMLNode* node )	{
+    TIXMLASSERT( node );
+    TIXMLASSERT(node->_document == this );
+    if (node->_parent) {
+        node->_parent->DeleteChild( node );
+    }
+    else {
+        // Isn't in the tree.
+        // Use the parent delete.
+        // Also, we need to mark it tracked: we 'know'
+        // it was never used.
+        node->_memPool->SetTracked();
+        // Call the static XMLNode version:
+        XMLNode::DeleteNode(node);
+    }
+}
+
+
+XMLError XMLDocument::LoadFile( const char* filename )
+{
+    Clear();
+    FILE* fp = callfopen( filename, "rb" );
+    if ( !fp ) {
+        SetError( XML_ERROR_FILE_NOT_FOUND, 0, "filename=%s", filename ? filename : "<null>");
+        return _errorID;
+    }
+    LoadFile( fp );
+    fclose( fp );
+    return _errorID;
+}
+
+// This is likely overengineered template art to have a check that unsigned long value incremented
+// by one still fits into size_t. If size_t type is larger than unsigned long type
+// (x86_64-w64-mingw32 target) then the check is redundant and gcc and clang emit
+// -Wtype-limits warning. This piece makes the compiler select code with a check when a check
+// is useful and code with no check when a check is redundant depending on how size_t and unsigned long
+// types sizes relate to each other.
+template
+<bool = (sizeof(unsigned long) >= sizeof(size_t))>
+struct LongFitsIntoSizeTMinusOne {
+    static bool Fits( unsigned long value )
+    {
+        return value < (size_t)-1;
+    }
+};
+
+template <>
+struct LongFitsIntoSizeTMinusOne<false> {
+    static bool Fits( unsigned long )
+    {
+        return true;
+    }
+};
+
+XMLError XMLDocument::LoadFile( FILE* fp )
+{
+    Clear();
+
+    fseek( fp, 0, SEEK_SET );
+    if ( fgetc( fp ) == EOF && ferror( fp ) != 0 ) {
+        SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
+        return _errorID;
+    }
+
+    fseek( fp, 0, SEEK_END );
+    const long filelength = ftell( fp );
+    fseek( fp, 0, SEEK_SET );
+    if ( filelength == -1L ) {
+        SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
+        return _errorID;
+    }
+    TIXMLASSERT( filelength >= 0 );
+
+    if ( !LongFitsIntoSizeTMinusOne<>::Fits( filelength ) ) {
+        // Cannot handle files which won't fit in buffer together with null terminator
+        SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
+        return _errorID;
+    }
+
+    if ( filelength == 0 ) {
+        SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
+        return _errorID;
+    }
+
+    const size_t size = filelength;
+    TIXMLASSERT( _charBuffer == 0 );
+    _charBuffer = Aws::NewArray <char>(size+1, ALLOCATION_TAG);
+    size_t read = fread( _charBuffer, 1, size, fp );
+    if ( read != size ) {
+        SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
+        return _errorID;
+    }
+
+    _charBuffer[size] = 0;
+
+    Parse();
+    return _errorID;
+}
+
+
+XMLError XMLDocument::SaveFile( const char* filename, bool compact )
+{
+    FILE* fp = callfopen( filename, "w" );
+    if ( !fp ) {
+        SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, 0, "filename=%s", filename ? filename : "<null>");
+        return _errorID;
+    }
+    SaveFile(fp, compact);
+    fclose( fp );
+    return _errorID;
+}
+
+
+XMLError XMLDocument::SaveFile( FILE* fp, bool compact )
+{
+    // Clear any error from the last save, otherwise it will get reported
+    // for *this* call.
+    ClearError();
+    XMLPrinter stream( fp, compact );
+    Print( &stream );
+    return _errorID;
+}
+
+
+XMLError XMLDocument::Parse( const char* p, size_t len )
+{
+    Clear();
+
+    if ( len == 0 || !p || !*p ) {
+        SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
+        return _errorID;
+    }
+    if ( len == (size_t)(-1) ) {
+        len = strlen( p );
+    }
+    TIXMLASSERT( _charBuffer == 0 );
+    _charBuffer = Aws::NewArray<char>(len+1, ALLOCATION_TAG);
+    memcpy( _charBuffer, p, len );
+    _charBuffer[len] = 0;
+
+    Parse();
+    if ( Error() ) {
+        // clean up now essentially dangling memory.
+        // and the parse fail can put objects in the
+        // pools that are dead and inaccessible.
+        DeleteChildren();
+        _elementPool.Clear();
+        _attributePool.Clear();
+        _textPool.Clear();
+        _commentPool.Clear();
+    }
+    return _errorID;
+}
+
+
+void XMLDocument::Print( XMLPrinter* streamer ) const
+{
+    if ( streamer ) {
+        Accept( streamer );
+    }
+    else {
+        XMLPrinter stdoutStreamer( stdout );
+        Accept( &stdoutStreamer );
+    }
+}
+
+
+void XMLDocument::SetError( XMLError error, int lineNum, const char* format, ... )
+{
+    TIXMLASSERT( error >= 0 && error < XML_ERROR_COUNT );
+    _errorID = error;
+    _errorLineNum = lineNum;
+    _errorStr.Reset();
+
+    if (format) {
+        size_t BUFFER_SIZE = 1000;
+        char* buffer = Aws::NewArray<char>(BUFFER_SIZE, ALLOCATION_TAG);
+        TIXML_SNPRINTF(buffer, BUFFER_SIZE, "Error=%s ErrorID=%d (0x%x) Line number=%d: ", ErrorIDToName(error), int(error), int(error), lineNum);
+        size_t len = strlen(buffer);
+
+        va_list va;
+        va_start( va, format );
+        TIXML_VSNPRINTF( buffer + len, BUFFER_SIZE - len, format, va );
+        va_end( va );
+
+        _errorStr.SetStr(buffer);
+        Aws::DeleteArray(buffer);
+    }
+}
+
+
+/*static*/ const char* XMLDocument::ErrorIDToName(XMLError errorID)
+{
+    TIXMLASSERT( errorID >= 0 && errorID < XML_ERROR_COUNT );
+    const char* errorName = _errorNames[errorID];
+    TIXMLASSERT( errorName && errorName[0] );
+    return errorName;
+}
+
+const char* XMLDocument::ErrorStr() const
+{
+    return _errorStr.Empty() ? "" : _errorStr.GetStr();
+}
+
+
+void XMLDocument::PrintError() const
+{
+    printf("%s\n", ErrorStr());
+}
+
+const char* XMLDocument::ErrorName() const
+{
+    return ErrorIDToName(_errorID);
+}
+
+void XMLDocument::Parse()
+{
+    TIXMLASSERT( NoChildren() ); // Clear() must have been called previously
+    TIXMLASSERT( _charBuffer );
+    _parseCurLineNum = 1;
+    _parseLineNum = 1;
+    char* p = _charBuffer;
+    p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum );
+    p = const_cast<char*>( XMLUtil::ReadBOM( p, &_writeBOM ) );
+    if ( !*p ) {
+        SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
+        return;
+    }
+    ParseDeep(p, 0, &_parseCurLineNum );
+}
+
+XMLPrinter::XMLPrinter( FILE* file, bool compact, int depth ) :
+    _elementJustOpened( false ),
+    _stack(),
+    _firstElement( true ),
+    _fp( file ),
+    _depth( depth ),
+    _textDepth( -1 ),
+    _processEntities( true ),
+    _compactMode( compact ),
+    _buffer()
+{
+    for( int i=0; i<ENTITY_RANGE; ++i ) {
+        _entityFlag[i] = false;
+        _restrictedEntityFlag[i] = false;
+    }
+    for( int i=0; i<NUM_ENTITIES; ++i ) {
+        const char entityValue = entities[i].value;
+        const unsigned char flagIndex = (unsigned char)entityValue;
+        TIXMLASSERT( flagIndex < ENTITY_RANGE );
+        _entityFlag[flagIndex] = true;
+    }
+    _restrictedEntityFlag[(unsigned char)'&'] = true;
+    _restrictedEntityFlag[(unsigned char)'<'] = true;
+    _restrictedEntityFlag[(unsigned char)'>'] = true;	// not required, but consistency is nice
+    _buffer.Push( 0 );
+}
+
+
+void XMLPrinter::Print( const char* format, ... )
+{
+    va_list     va;
+    va_start( va, format );
+
+    if ( _fp ) {
+        vfprintf( _fp, format, va );
+    }
+    else {
+        const int len = TIXML_VSCPRINTF( format, va );
+        // Close out and re-start the va-args
+        va_end( va );
+        TIXMLASSERT( len >= 0 );
+        va_start( va, format );
+        TIXMLASSERT( _buffer.Size() > 0 && _buffer[_buffer.Size() - 1] == 0 );
+        char* p = _buffer.PushArr( len ) - 1;	// back up over the null terminator.
+        TIXML_VSNPRINTF( p, len+1, format, va );
+    }
+    va_end( va );
+}
+
+
+void XMLPrinter::Write( const char* data, size_t size )
+{
+    if ( _fp ) {
+        fwrite ( data , sizeof(char), size, _fp);
+    }
+    else {
+        char* p = _buffer.PushArr( static_cast<int>(size) ) - 1;   // back up over the null terminator.
+        memcpy( p, data, size );
+        p[size] = 0;
+    }
+}
+
+
+void XMLPrinter::Putc( char ch )
+{
+    if ( _fp ) {
+        fputc ( ch, _fp);
+    }
+    else {
+        char* p = _buffer.PushArr( sizeof(char) ) - 1;   // back up over the null terminator.
+        p[0] = ch;
+        p[1] = 0;
+    }
+}
+
+
+void XMLPrinter::PrintSpace( int depth )
+{
+    for( int i=0; i<depth; ++i ) {
+        Write( "    " );
+    }
+}
+
+
+void XMLPrinter::PrintString( const char* p, bool restricted )
+{
+    // Look for runs of bytes between entities to print.
+    const char* q = p;
+
+    if ( _processEntities ) {
+        const bool* flag = restricted ? _restrictedEntityFlag : _entityFlag;
+        while ( *q ) {
+            TIXMLASSERT( p <= q );
+            // Remember, char is sometimes signed. (How many times has that bitten me?)
+            if ( *q > 0 && *q < ENTITY_RANGE ) {
+                // Check for entities. If one is found, flush
+                // the stream up until the entity, write the
+                // entity, and keep looking.
+                if ( flag[(unsigned char)(*q)] ) {
+                    while ( p < q ) {
+                        const size_t delta = q - p;
+                        const int toPrint = ( INT_MAX < delta ) ? INT_MAX : (int)delta;
+                        Write( p, toPrint );
+                        p += toPrint;
+                    }
+                    bool entityPatternPrinted = false;
+                    for( int i=0; i<NUM_ENTITIES; ++i ) {
+                        if ( entities[i].value == *q ) {
+                            Putc( '&' );
+                            Write( entities[i].pattern, entities[i].length );
+                            Putc( ';' );
+                            entityPatternPrinted = true;
+                            break;
+                        }
+                    }
+                    if ( !entityPatternPrinted ) {
+                        // TIXMLASSERT( entityPatternPrinted ) causes gcc -Wunused-but-set-variable in release
+                        TIXMLASSERT( false );
+                    }
+                    ++p;
+                }
+            }
+            ++q;
+            TIXMLASSERT( p <= q );
+        }
+    }
+    // Flush the remaining string. This will be the entire
+    // string if an entity wasn't found.
+    TIXMLASSERT( p <= q );
+    if ( !_processEntities || ( p < q ) ) {
+        const size_t delta = q - p;
+        const int toPrint = ( INT_MAX < delta ) ? INT_MAX : (int)delta;
+        Write( p, toPrint );
+    }
+}
+
+
+void XMLPrinter::PushHeader( bool writeBOM, bool writeDec )
+{
+    if ( writeBOM ) {
+        static const unsigned char bom[] = { TIXML_UTF_LEAD_0, TIXML_UTF_LEAD_1, TIXML_UTF_LEAD_2, 0 };
+        Write( reinterpret_cast< const char* >( bom ) );
+    }
+    if ( writeDec ) {
+        PushDeclaration( "xml version=\"1.0\"" );
+    }
+}
+
+
+void XMLPrinter::OpenElement( const char* name, bool compactMode )
+{
+    SealElementIfJustOpened();
+    _stack.Push( name );
+
+    if ( _textDepth < 0 && !_firstElement && !compactMode ) {
+        Putc( '\n' );
+    }
+    if ( !compactMode ) {
+        PrintSpace( _depth );
+    }
+
+    Write ( "<" );
+    Write ( name );
+
+    _elementJustOpened = true;
+    _firstElement = false;
+    ++_depth;
+}
+
+
+void XMLPrinter::PushAttribute( const char* name, const char* value )
+{
+    TIXMLASSERT( _elementJustOpened );
+    Putc ( ' ' );
+    Write( name );
+    Write( "=\"" );
+    PrintString( value, false );
+    Putc ( '\"' );
+}
+
+
+void XMLPrinter::PushAttribute( const char* name, int v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    PushAttribute( name, buf );
+}
+
+
+void XMLPrinter::PushAttribute( const char* name, unsigned v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    PushAttribute( name, buf );
+}
+
+
+void XMLPrinter::PushAttribute(const char* name, int64_t v)
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr(v, buf, BUF_SIZE);
+    PushAttribute(name, buf);
+}
+
+
+void XMLPrinter::PushAttribute( const char* name, bool v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    PushAttribute( name, buf );
+}
+
+
+void XMLPrinter::PushAttribute( const char* name, double v )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( v, buf, BUF_SIZE );
+    PushAttribute( name, buf );
+}
+
+
+void XMLPrinter::CloseElement( bool compactMode )
+{
+    --_depth;
+    const char* name = _stack.Pop();
+
+    if ( _elementJustOpened ) {
+        Write( "/>" );
+    }
+    else {
+        if ( _textDepth < 0 && !compactMode) {
+            Putc( '\n' );
+            PrintSpace( _depth );
+        }
+        Write ( "</" );
+        Write ( name );
+        Write ( ">" );
+    }
+
+    if ( _textDepth == _depth ) {
+        _textDepth = -1;
+    }
+    if ( _depth == 0 && !compactMode) {
+        Putc( '\n' );
+    }
+    _elementJustOpened = false;
+}
+
+
+void XMLPrinter::SealElementIfJustOpened()
+{
+    if ( !_elementJustOpened ) {
+        return;
+    }
+    _elementJustOpened = false;
+    Putc( '>' );
+}
+
+
+void XMLPrinter::PushText( const char* text, bool cdata )
+{
+    _textDepth = _depth-1;
+
+    SealElementIfJustOpened();
+    if ( cdata ) {
+        Write( "<![CDATA[" );
+        Write( text );
+        Write( "]]>" );
+    }
+    else {
+        PrintString( text, true );
+    }
+}
+
+void XMLPrinter::PushText( int64_t value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+void XMLPrinter::PushText( int value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+
+void XMLPrinter::PushText( unsigned value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+
+void XMLPrinter::PushText( bool value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+
+void XMLPrinter::PushText( float value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+
+void XMLPrinter::PushText( double value )
+{
+    char buf[BUF_SIZE];
+    XMLUtil::ToStr( value, buf, BUF_SIZE );
+    PushText( buf, false );
+}
+
+
+void XMLPrinter::PushComment( const char* comment )
+{
+    SealElementIfJustOpened();
+    if ( _textDepth < 0 && !_firstElement && !_compactMode) {
+        Putc( '\n' );
+        PrintSpace( _depth );
+    }
+    _firstElement = false;
+
+    Write( "<!--" );
+    Write( comment );
+    Write( "-->" );
+}
+
+
+void XMLPrinter::PushDeclaration( const char* value )
+{
+    SealElementIfJustOpened();
+    if ( _textDepth < 0 && !_firstElement && !_compactMode) {
+        Putc( '\n' );
+        PrintSpace( _depth );
+    }
+    _firstElement = false;
+
+    Write( "<?" );
+    Write( value );
+    Write( "?>" );
+}
+
+
+void XMLPrinter::PushUnknown( const char* value )
+{
+    SealElementIfJustOpened();
+    if ( _textDepth < 0 && !_firstElement && !_compactMode) {
+        Putc( '\n' );
+        PrintSpace( _depth );
+    }
+    _firstElement = false;
+
+    Write( "<!" );
+    Write( value );
+    Putc( '>' );
+}
+
+
+bool XMLPrinter::VisitEnter( const XMLDocument& doc )
+{
+    _processEntities = doc.ProcessEntities();
+    if ( doc.HasBOM() ) {
+        PushHeader( true, false );
+    }
+    return true;
+}
+
+
+bool XMLPrinter::VisitEnter( const XMLElement& element, const XMLAttribute* attribute )
+{
+    const XMLElement* parentElem = 0;
+    if ( element.Parent() ) {
+        parentElem = element.Parent()->ToElement();
+    }
+    const bool compactMode = parentElem ? CompactMode( *parentElem ) : _compactMode;
+    OpenElement( element.Name(), compactMode );
+    while ( attribute ) {
+        PushAttribute( attribute->Name(), attribute->Value() );
+        attribute = attribute->Next();
+    }
+    return true;
+}
+
+
+bool XMLPrinter::VisitExit( const XMLElement& element )
+{
+    CloseElement( CompactMode(element) );
+    return true;
+}
+
+
+bool XMLPrinter::Visit( const XMLText& text )
+{
+    PushText( text.Value(), text.CData() );
+    return true;
+}
+
+
+bool XMLPrinter::Visit( const XMLComment& comment )
+{
+    PushComment( comment.Value() );
+    return true;
+}
+
+bool XMLPrinter::Visit( const XMLDeclaration& declaration )
+{
+    PushDeclaration( declaration.Value() );
+    return true;
+}
+
+
+bool XMLPrinter::Visit( const XMLUnknown& unknown )
+{
+    PushUnknown( unknown.Value() );
+    return true;
+}
+
+}   // namespace tinyxml2
+}   // namespace External
+}   // namespace Aws
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClient.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClient.cpp
new file mode 100644
index 0000000000..8542023393
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClient.cpp
@@ -0,0 +1,49 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/HttpClient.h>
+#include <aws/core/http/HttpRequest.h>
+
+using namespace Aws;
+using namespace Aws::Http;
+
+HttpClient::HttpClient() :
+    m_disableRequestProcessing( false ),
+    m_requestProcessingSignalLock(),
+    m_requestProcessingSignal()
+{
+}
+
+void HttpClient::DisableRequestProcessing() 
+{ 
+    m_disableRequestProcessing = true;
+    m_requestProcessingSignal.notify_all();
+}
+
+void HttpClient::EnableRequestProcessing() 
+{ 
+    m_disableRequestProcessing = false; 
+}
+
+bool HttpClient::IsRequestProcessingEnabled() const 
+{ 
+    return m_disableRequestProcessing.load() == false; 
+}
+
+void HttpClient::RetryRequestSleep(std::chrono::milliseconds sleepTime) 
+{
+    std::unique_lock< std::mutex > signalLocker(m_requestProcessingSignalLock);
+    m_requestProcessingSignal.wait_for(signalLocker, sleepTime, [this](){ return m_disableRequestProcessing.load() == true; });
+}
+
+bool HttpClient::ContinueRequest(const Aws::Http::HttpRequest& request) const
+{
+    if (request.GetContinueRequestHandler())
+    {
+        return request.GetContinueRequestHandler()(&request);
+    }
+
+    return true;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClientFactory.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClientFactory.cpp
new file mode 100644
index 0000000000..a556e39a5d
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpClientFactory.cpp
@@ -0,0 +1,203 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/HttpClientFactory.h>
+
+#if ENABLE_CURL_CLIENT
+#include <aws/core/http/curl/CurlHttpClient.h>
+#include <signal.h>
+
+#elif ENABLE_WINDOWS_CLIENT
+#include <aws/core/client/ClientConfiguration.h>
+#if ENABLE_WINDOWS_IXML_HTTP_REQUEST_2_CLIENT
+#error #include <aws/core/http/windows/IXmlHttpRequest2HttpClient.h>
+#if BYPASS_DEFAULT_PROXY
+#error #include <aws/core/http/windows/WinHttpSyncHttpClient.h>
+#endif
+#else
+#error #include <aws/core/http/windows/WinINetSyncHttpClient.h>
+#error #include <aws/core/http/windows/WinHttpSyncHttpClient.h>
+#endif
+#endif
+
+#include <aws/core/http/standard/StandardHttpRequest.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <cassert>
+
+using namespace Aws::Client;
+using namespace Aws::Http;
+using namespace Aws::Utils::Logging;
+
+namespace Aws
+{
+    namespace Http
+    {
+        static std::shared_ptr<HttpClientFactory>& GetHttpClientFactory()
+        {
+            static std::shared_ptr<HttpClientFactory> s_HttpClientFactory(nullptr);
+            return s_HttpClientFactory;
+        }
+        static bool s_InitCleanupCurlFlag(false);
+        static bool s_InstallSigPipeHandler(false);
+
+        static const char* HTTP_CLIENT_FACTORY_ALLOCATION_TAG = "HttpClientFactory";
+
+#if ENABLE_CURL_CLIENT && !defined(_WIN32)
+        static void LogAndSwallowHandler(int signal)
+        {
+            switch(signal)
+            {
+                case SIGPIPE:
+                    AWS_LOGSTREAM_ERROR(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "Received a SIGPIPE error");
+                    break;
+                default:
+                    AWS_LOGSTREAM_ERROR(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "Unhandled system SIGNAL error"  << signal);
+            }
+        }
+#endif
+
+        class DefaultHttpClientFactory : public HttpClientFactory
+        {
+            std::shared_ptr<HttpClient> CreateHttpClient(const ClientConfiguration& clientConfiguration) const override
+            {
+                // Figure out whether the selected option is available but fail gracefully and return a default of some type if not
+                // Windows clients:  Http and Inet are always options, Curl MIGHT be an option if USE_CURL_CLIENT is on, and http is "default"
+                // Other clients: Curl is your default
+#if ENABLE_WINDOWS_CLIENT
+#if ENABLE_WINDOWS_IXML_HTTP_REQUEST_2_CLIENT
+#if BYPASS_DEFAULT_PROXY
+                switch (clientConfiguration.httpLibOverride)
+                {
+                    case TransferLibType::WIN_HTTP_CLIENT:
+                        AWS_LOGSTREAM_INFO(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "Creating WinHTTP http client.");
+                        return Aws::MakeShared<WinHttpSyncHttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+                    case TransferLibType::WIN_INET_CLIENT:
+                        AWS_LOGSTREAM_WARN(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "WinINet http client is not supported with the current build configuration.");
+                        // fall-through
+                    default:
+                        AWS_LOGSTREAM_INFO(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "Creating IXMLHttpRequest http client.");
+                        return Aws::MakeShared<IXmlHttpRequest2HttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+                }
+#else
+                return Aws::MakeShared<IXmlHttpRequest2HttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+#endif // BYPASS_DEFAULT_PROXY
+#else
+                switch (clientConfiguration.httpLibOverride)
+                {
+                    case TransferLibType::WIN_INET_CLIENT:
+                        return Aws::MakeShared<WinINetSyncHttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+
+                    default:
+                        return Aws::MakeShared<WinHttpSyncHttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+                }
+#endif // ENABLE_WINDOWS_IXML_HTTP_REQUEST_2_CLIENT
+#elif ENABLE_CURL_CLIENT
+                return Aws::MakeShared<CurlHttpClient>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, clientConfiguration);
+#else
+                // When neither of these clients is enabled, gcc gives a warning (converted
+                // to error by -Werror) about the unused clientConfiguration parameter. We
+                // prevent that warning with AWS_UNREFERENCED_PARAM.
+                AWS_UNREFERENCED_PARAM(clientConfiguration);
+                AWS_LOGSTREAM_WARN(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, "SDK was built without an Http implementation, default http client factory can't create an Http client instance.");
+                return nullptr;
+#endif
+            }
+
+            std::shared_ptr<HttpRequest> CreateHttpRequest(const Aws::String &uri, HttpMethod method,
+                                                           const Aws::IOStreamFactory &streamFactory) const override
+            {
+                return CreateHttpRequest(URI(uri), method, streamFactory);
+            }
+
+            std::shared_ptr<HttpRequest> CreateHttpRequest(const URI& uri, HttpMethod method, const Aws::IOStreamFactory& streamFactory) const override
+            {
+                auto request = Aws::MakeShared<Standard::StandardHttpRequest>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG, uri, method);
+                request->SetResponseStreamFactory(streamFactory);
+
+                return request;
+            }
+
+            void InitStaticState() override
+            {
+#if ENABLE_CURL_CLIENT
+                if(s_InitCleanupCurlFlag)
+                {
+                    CurlHttpClient::InitGlobalState();
+                }
+#if !defined (_WIN32)
+                if(s_InstallSigPipeHandler)
+                {
+                    ::signal(SIGPIPE, LogAndSwallowHandler);
+                }
+#endif
+#elif ENABLE_WINDOWS_IXML_HTTP_REQUEST_2_CLIENT
+                IXmlHttpRequest2HttpClient::InitCOM();
+#endif
+            }
+
+            virtual void CleanupStaticState() override
+            {
+#if ENABLE_CURL_CLIENT
+                if(s_InitCleanupCurlFlag)
+                {
+                    CurlHttpClient::CleanupGlobalState();
+                }
+#endif
+            }
+        };
+
+        void SetInitCleanupCurlFlag(bool initCleanupFlag)
+        {
+            s_InitCleanupCurlFlag = initCleanupFlag;
+        }
+
+        void SetInstallSigPipeHandlerFlag(bool install)
+        {
+            s_InstallSigPipeHandler = install;
+        }
+
+        void InitHttp()
+        {
+            if(!GetHttpClientFactory())
+            {
+                GetHttpClientFactory() = Aws::MakeShared<DefaultHttpClientFactory>(HTTP_CLIENT_FACTORY_ALLOCATION_TAG);
+            }
+            GetHttpClientFactory()->InitStaticState();
+        }
+
+        void CleanupHttp()
+        {
+            if(GetHttpClientFactory())
+            {
+                GetHttpClientFactory()->CleanupStaticState();
+                GetHttpClientFactory() = nullptr;
+            }
+        }
+
+        void SetHttpClientFactory(const std::shared_ptr<HttpClientFactory>& factory)
+        {
+            CleanupHttp();
+            GetHttpClientFactory() = factory;
+        }
+
+        std::shared_ptr<HttpClient> CreateHttpClient(const Aws::Client::ClientConfiguration& clientConfiguration)
+        {
+            assert(GetHttpClientFactory());
+            return GetHttpClientFactory()->CreateHttpClient(clientConfiguration);
+        }
+
+        std::shared_ptr<HttpRequest> CreateHttpRequest(const Aws::String& uri, HttpMethod method, const Aws::IOStreamFactory& streamFactory)
+        {
+            assert(GetHttpClientFactory());
+            return GetHttpClientFactory()->CreateHttpRequest(uri, method, streamFactory);
+        }
+
+        std::shared_ptr<HttpRequest> CreateHttpRequest(const URI& uri, HttpMethod method, const Aws::IOStreamFactory& streamFactory)
+        {
+            assert(GetHttpClientFactory());
+            return GetHttpClientFactory()->CreateHttpRequest(uri, method, streamFactory);
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpRequest.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpRequest.cpp
new file mode 100644
index 0000000000..95cb626c22
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpRequest.cpp
@@ -0,0 +1,40 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/HttpRequest.h>
+
+namespace Aws
+{
+namespace Http
+{
+
+const char DATE_HEADER[] = "date";
+const char AWS_DATE_HEADER[] = "X-Amz-Date";
+const char AWS_SECURITY_TOKEN[] = "X-Amz-Security-Token";
+const char ACCEPT_HEADER[] = "accept";
+const char ACCEPT_CHAR_SET_HEADER[] = "accept-charset";
+const char ACCEPT_ENCODING_HEADER[] = "accept-encoding";
+const char AUTHORIZATION_HEADER[] = "authorization";
+const char AWS_AUTHORIZATION_HEADER[] = "authorization";
+const char COOKIE_HEADER[] = "cookie";
+const char CONTENT_LENGTH_HEADER[] = "content-length";
+const char CONTENT_TYPE_HEADER[] = "content-type";
+const char TRANSFER_ENCODING_HEADER[] = "transfer-encoding";
+const char USER_AGENT_HEADER[] = "user-agent";
+const char VIA_HEADER[] = "via";
+const char HOST_HEADER[] = "host";
+const char AMZ_TARGET_HEADER[] = "x-amz-target";
+const char X_AMZ_EXPIRES_HEADER[] = "X-Amz-Expires";
+const char CONTENT_MD5_HEADER[] = "content-md5";
+const char API_VERSION_HEADER[] = "x-amz-api-version";
+const char SDK_INVOCATION_ID_HEADER[] = "amz-sdk-invocation-id";
+const char SDK_REQUEST_HEADER[] = "amz-sdk-request";
+const char CHUNKED_VALUE[] = "chunked";
+
+} // Http
+} // Aws
+
+
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpTypes.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpTypes.cpp
new file mode 100644
index 0000000000..4d313e52f3
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/HttpTypes.cpp
@@ -0,0 +1,42 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/HttpTypes.h>
+#include <cassert>
+
+using namespace Aws::Http;
+
+namespace Aws
+{
+namespace Http
+{
+
+namespace HttpMethodMapper
+{
+const char* GetNameForHttpMethod(HttpMethod httpMethod)
+{
+    switch (httpMethod)
+    {
+        case HttpMethod::HTTP_GET:
+            return "GET";
+        case HttpMethod::HTTP_POST:
+            return "POST";
+        case HttpMethod::HTTP_DELETE:
+            return "DELETE";
+        case HttpMethod::HTTP_PUT:
+            return "PUT";
+        case HttpMethod::HTTP_HEAD:
+            return "HEAD";
+        case HttpMethod::HTTP_PATCH:
+            return "PATCH";
+        default:
+            assert(0);
+            return "GET";
+    }
+}
+
+} // namespace HttpMethodMapper
+} // namespace Http
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/Scheme.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/Scheme.cpp
new file mode 100644
index 0000000000..5dcea06aab
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/Scheme.cpp
@@ -0,0 +1,54 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/Scheme.h>
+#include <aws/core/utils/memory/stl/AWSString.h>
+#include <aws/core/utils/StringUtils.h>
+
+using namespace Aws::Http;
+using namespace Aws::Utils;
+
+namespace Aws
+{
+namespace Http
+{
+namespace SchemeMapper
+{
+
+    const char* ToString(Scheme scheme)
+    {
+        switch (scheme)
+        {
+            case Scheme::HTTP:
+                return "http";
+            case Scheme::HTTPS:
+                return "https";
+            default:
+                return "http";
+        }
+    }
+
+    Scheme FromString(const char* name)
+    {
+        Aws::String trimmedString = StringUtils::Trim(name);
+        Aws::String loweredTrimmedString = StringUtils::ToLower(trimmedString.c_str());
+
+        if (loweredTrimmedString == "http")
+        {
+            return Scheme::HTTP;
+        }
+        //this branch is technically unneeded, but it is here so we don't have a subtle bug
+        //creep in as we extend this enum.
+        else if (loweredTrimmedString == "https")
+        {
+            return Scheme::HTTPS;
+        }
+
+        return Scheme::HTTPS;
+    }
+
+} // namespace SchemeMapper
+} // namespace Http
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/URI.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/URI.cpp
new file mode 100644
index 0000000000..a2239df54b
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/URI.cpp
@@ -0,0 +1,510 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/URI.h>
+
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/memory/stl/AWSSet.h>
+
+#include <cstdlib>
+#include <cctype>
+#include <cassert>
+#include <algorithm>
+#include <iomanip>
+
+using namespace Aws::Http;
+using namespace Aws::Utils;
+
+namespace Aws
+{
+namespace Http
+{
+
+const char* SEPARATOR = "://";
+
+} // namespace Http
+} // namespace Aws
+
+URI::URI() : m_scheme(Scheme::HTTP), m_port(HTTP_DEFAULT_PORT)
+{
+}
+
+URI::URI(const Aws::String& uri) : m_scheme(Scheme::HTTP), m_port(HTTP_DEFAULT_PORT)
+{
+    ParseURIParts(uri);
+}
+
+URI::URI(const char* uri) : m_scheme(Scheme::HTTP), m_port(HTTP_DEFAULT_PORT)
+{
+    ParseURIParts(uri);
+}
+
+URI& URI::operator =(const Aws::String& uri)
+{
+    this->ParseURIParts(uri);
+    return *this;
+}
+
+URI& URI::operator =(const char* uri)
+{
+    this->ParseURIParts(uri);
+    return *this;
+}
+
+bool URI::operator ==(const URI& other) const
+{
+    return CompareURIParts(other);
+}
+
+bool URI::operator ==(const Aws::String& other) const
+{
+    return CompareURIParts(other);
+}
+
+bool URI::operator ==(const char* other) const
+{
+    return CompareURIParts(other);
+}
+
+bool URI::operator !=(const URI& other) const
+{
+    return !(*this == other);
+}
+
+bool URI::operator !=(const Aws::String& other) const
+{
+    return !(*this == other);
+}
+
+bool URI::operator !=(const char* other) const
+{
+    return !(*this == other);
+}
+
+void URI::SetScheme(Scheme value)
+{
+    assert(value == Scheme::HTTP || value == Scheme::HTTPS);
+
+    if (value == Scheme::HTTP)
+    {
+        m_port = m_port == HTTPS_DEFAULT_PORT || m_port == 0 ? HTTP_DEFAULT_PORT : m_port;
+        m_scheme = value;
+    }
+    else if (value == Scheme::HTTPS)
+    {
+        m_port = m_port == HTTP_DEFAULT_PORT || m_port == 0 ? HTTPS_DEFAULT_PORT : m_port;
+        m_scheme = value;
+    }
+}
+
+Aws::String URI::URLEncodePathRFC3986(const Aws::String& path)
+{
+    if(path.empty())
+    {
+        return path;
+    }
+
+    const Aws::Vector<Aws::String> pathParts = StringUtils::Split(path, '/');
+    Aws::StringStream ss;
+    ss << std::hex << std::uppercase;
+
+    // escape characters appearing in a URL path according to RFC 3986
+    for (const auto& segment : pathParts)
+    {
+        ss << '/';
+        for(unsigned char c : segment) // alnum results in UB if the value of c is not unsigned char & is not EOF
+        {
+            // §2.3 unreserved characters
+            if (StringUtils::IsAlnum(c))
+            {
+                ss << c;
+                continue;
+            }
+            switch(c)
+            {
+                // §2.3 unreserved characters
+                case '-': case '_': case '.': case '~':
+                // The path section of the URL allow reserved characters to appear unescaped
+                // RFC 3986 §2.2 Reserved characters
+                // NOTE: this implementation does not accurately implement the RFC on purpose to accommodate for
+                // discrepancies in the implementations of URL encoding between AWS services for legacy reasons.
+                case '$': case '&': case ',':
+                case ':': case '=': case '@':
+                    ss << c;
+                    break;
+                default:
+                    ss << '%' << std::setfill('0') << std::setw(2) << (int)((unsigned char)c) << std::setw(0);
+            }
+        }
+    }
+
+    //if the last character was also a slash, then add that back here.
+    if (path.back() == '/')
+    {
+        ss << '/';
+    }
+
+    return ss.str();
+}
+
+Aws::String URI::URLEncodePath(const Aws::String& path)
+{
+    Aws::Vector<Aws::String> pathParts = StringUtils::Split(path, '/');
+    Aws::StringStream ss;
+
+    for (Aws::Vector<Aws::String>::iterator iter = pathParts.begin(); iter != pathParts.end(); ++iter)
+    {
+        ss << '/' << StringUtils::URLEncode(iter->c_str());
+    }
+
+    //if the last character was also a slash, then add that back here.
+    if (path.length() > 0 && path[path.length() - 1] == '/')
+    {
+        ss << '/';
+    }
+
+    if (path.length() > 0 && path[0] != '/')
+    {
+        return ss.str().substr(1);
+    }
+    else
+    {
+        return ss.str();
+    }
+}
+
+void URI::SetPath(const Aws::String& value)
+{
+    const Aws::Vector<Aws::String> pathParts = StringUtils::Split(value, '/');
+    Aws::String path;
+    path.reserve(value.length() + 1/* in case we have to append slash before the path. */);
+
+    for (const auto& segment : pathParts)
+    {
+        path.push_back('/');
+        path.append(segment);
+    }
+
+    if (value.back() == '/')
+    {
+        path.push_back('/');
+    }
+    m_path = std::move(path);
+}
+
+//ugh, this isn't even part of the canonicalization spec. It is part of how our services have implemented their signers though....
+//it doesn't really hurt anything to reorder it though, so go ahead and sort the values for parameters with the same key
+void InsertValueOrderedParameter(QueryStringParameterCollection& queryParams, const Aws::String& key, const Aws::String& value)
+{
+    auto entriesAtKey = queryParams.equal_range(key);
+    for (auto& entry = entriesAtKey.first; entry != entriesAtKey.second; ++entry)
+    {
+        if (entry->second > value)
+        {
+            queryParams.emplace_hint(entry, key, value);
+            return;
+        }
+    }
+
+    queryParams.emplace(key, value);
+}
+
+QueryStringParameterCollection URI::GetQueryStringParameters(bool decode) const
+{
+    Aws::String queryString = GetQueryString();
+
+    QueryStringParameterCollection parameterCollection;
+
+    //if we actually have a query string
+    if (queryString.size() > 0)
+    {
+        size_t currentPos = 1, locationOfNextDelimiter = 1;
+
+        //while we have params left to parse
+        while (currentPos < queryString.size())
+        {
+            //find next key/value pair
+            locationOfNextDelimiter = queryString.find('&', currentPos);
+
+            Aws::String keyValuePair;
+
+            //if this isn't the last parameter
+            if (locationOfNextDelimiter != Aws::String::npos)
+            {
+                keyValuePair = queryString.substr(currentPos, locationOfNextDelimiter - currentPos);
+            }
+            //if it is the last parameter
+            else
+            {
+                keyValuePair = queryString.substr(currentPos);
+            }
+
+            //split on =
+            size_t locationOfEquals = keyValuePair.find('=');
+            Aws::String key = keyValuePair.substr(0, locationOfEquals);
+            Aws::String value = keyValuePair.substr(locationOfEquals + 1);
+
+            if(decode)
+            {
+                InsertValueOrderedParameter(parameterCollection, StringUtils::URLDecode(key.c_str()), StringUtils::URLDecode(value.c_str()));
+            }
+            else
+            {
+                InsertValueOrderedParameter(parameterCollection, key, value);
+            }
+
+            currentPos += keyValuePair.size() + 1;
+        }
+    }
+
+    return parameterCollection;
+}
+
+void URI::CanonicalizeQueryString()
+{
+    QueryStringParameterCollection sortedParameters = GetQueryStringParameters(false);
+    Aws::StringStream queryStringStream;
+
+    bool first = true;
+
+    if(sortedParameters.size() > 0)
+    {
+        queryStringStream << "?";
+    }
+
+    if(m_queryString.find('=') != std::string::npos)
+    {
+        for (QueryStringParameterCollection::iterator iter = sortedParameters.begin();
+             iter != sortedParameters.end(); ++iter)
+        {
+            if (!first)
+            {
+                queryStringStream << "&";
+            }
+
+            first = false;
+            queryStringStream << iter->first.c_str() << "=" << iter->second.c_str();
+        }
+
+        m_queryString = queryStringStream.str();
+    }
+}
+
+void URI::AddQueryStringParameter(const char* key, const Aws::String& value)
+{
+    if (m_queryString.size() <= 0)
+    {
+        m_queryString.append("?");
+    }
+    else
+    {
+        m_queryString.append("&");
+    }
+
+    m_queryString.append(StringUtils::URLEncode(key) + "=" + StringUtils::URLEncode(value.c_str()));
+}
+
+void URI::AddQueryStringParameter(const Aws::Map<Aws::String, Aws::String>& queryStringPairs)
+{
+    for(const auto& entry: queryStringPairs)
+    {
+        AddQueryStringParameter(entry.first.c_str(), entry.second);
+    }
+}
+
+void URI::SetQueryString(const Aws::String& str)
+{
+    m_queryString = "";
+
+    if (str.empty()) return;
+
+    if (str.front() != '?')
+    {
+        m_queryString.append("?").append(str);
+    }
+    else
+    {
+       m_queryString = str;
+    }
+}
+
+Aws::String URI::GetURIString(bool includeQueryString) const
+{
+    assert(m_authority.size() > 0);
+
+    Aws::StringStream ss;
+    ss << SchemeMapper::ToString(m_scheme) << SEPARATOR << m_authority;
+
+    if (m_scheme == Scheme::HTTP && m_port != HTTP_DEFAULT_PORT)
+    {
+        ss << ":" << m_port;
+    }
+    else if (m_scheme == Scheme::HTTPS && m_port != HTTPS_DEFAULT_PORT)
+    {
+        ss << ":" << m_port;
+    }
+
+    if(m_path != "/")
+    {
+        ss << URLEncodePathRFC3986(m_path);
+    }
+
+    if(includeQueryString)
+    {
+        ss << m_queryString;
+    }
+
+    return ss.str();
+}
+
+void URI::ParseURIParts(const Aws::String& uri)
+{
+    ExtractAndSetScheme(uri);
+    ExtractAndSetAuthority(uri);
+    ExtractAndSetPort(uri);
+    ExtractAndSetPath(uri);
+    ExtractAndSetQueryString(uri);
+}
+
+void URI::ExtractAndSetScheme(const Aws::String& uri)
+{
+    size_t posOfSeparator = uri.find(SEPARATOR);
+
+    if (posOfSeparator != Aws::String::npos)
+    {
+        Aws::String schemePortion = uri.substr(0, posOfSeparator);
+        SetScheme(SchemeMapper::FromString(schemePortion.c_str()));
+    }
+    else
+    {
+        SetScheme(Scheme::HTTP);
+    }
+}
+
+void URI::ExtractAndSetAuthority(const Aws::String& uri)
+{
+    size_t authorityStart = uri.find(SEPARATOR);
+
+    if (authorityStart == Aws::String::npos)
+    {
+        authorityStart = 0;
+    }
+    else
+    {
+        authorityStart += 3;
+    }
+
+    size_t posOfEndOfAuthorityPort = uri.find(':', authorityStart);
+    size_t posOfEndOfAuthoritySlash = uri.find('/', authorityStart);
+    size_t posOfEndOfAuthorityQuery = uri.find('?', authorityStart);
+    size_t posEndOfAuthority = (std::min)({posOfEndOfAuthorityPort, posOfEndOfAuthoritySlash, posOfEndOfAuthorityQuery});
+    if (posEndOfAuthority == Aws::String::npos)
+    {
+        posEndOfAuthority = uri.length();
+    }
+
+    SetAuthority(uri.substr(authorityStart, posEndOfAuthority - authorityStart));
+}
+
+void URI::ExtractAndSetPort(const Aws::String& uri)
+{
+    size_t authorityStart = uri.find(SEPARATOR);
+
+    if(authorityStart == Aws::String::npos)
+    {
+        authorityStart = 0;
+    }
+    else
+    {
+        authorityStart += 3;
+    }
+
+    size_t positionOfPortDelimiter = uri.find(':', authorityStart);
+
+    bool hasPort = positionOfPortDelimiter != Aws::String::npos;
+
+    if ((uri.find('/', authorityStart) < positionOfPortDelimiter) || (uri.find('?', authorityStart) < positionOfPortDelimiter))
+    {
+        hasPort = false;
+    }
+
+    if (hasPort)
+    {
+        Aws::String strPort;
+
+        size_t i = positionOfPortDelimiter + 1;
+        char currentDigit = uri[i];
+
+        while (std::isdigit(currentDigit))
+        {
+            strPort += currentDigit;
+            currentDigit = uri[++i];
+        }
+
+        SetPort(static_cast<uint16_t>(atoi(strPort.c_str())));
+    }
+}
+
+void URI::ExtractAndSetPath(const Aws::String& uri)
+{
+    size_t authorityStart = uri.find(SEPARATOR);
+
+    if (authorityStart == Aws::String::npos)
+    {
+        authorityStart = 0;
+    }
+    else
+    {
+        authorityStart += 3;
+    }
+
+    size_t pathEnd = uri.find('?');
+
+    if (pathEnd == Aws::String::npos)
+    {
+        pathEnd = uri.length();
+    }
+
+    Aws::String authorityAndPath = uri.substr(authorityStart, pathEnd - authorityStart);
+
+    size_t pathStart = authorityAndPath.find('/');
+
+    if (pathStart != Aws::String::npos)
+    {
+        SetPath(authorityAndPath.substr(pathStart, pathEnd - pathStart));
+    }
+    else
+    {
+        SetPath("/");
+    }
+}
+
+void URI::ExtractAndSetQueryString(const Aws::String& uri)
+{
+    size_t queryStart = uri.find('?');
+
+    if (queryStart != Aws::String::npos)
+    {
+        m_queryString = uri.substr(queryStart);
+    }
+}
+
+Aws::String URI::GetFormParameters() const
+{
+    if(m_queryString.length() == 0)
+    {
+        return "";
+    }
+    else
+    {
+        return m_queryString.substr(1);
+    }
+}
+
+bool URI::CompareURIParts(const URI& other) const
+{
+    return m_scheme == other.m_scheme && m_authority == other.m_authority && m_path == other.m_path && m_queryString == other.m_queryString;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHandleContainer.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHandleContainer.cpp
new file mode 100644
index 0000000000..1a965cd795
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHandleContainer.cpp
@@ -0,0 +1,153 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/curl/CurlHandleContainer.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+#include <algorithm>
+
+using namespace Aws::Utils::Logging;
+using namespace Aws::Http;
+
+static const char* CURL_HANDLE_CONTAINER_TAG = "CurlHandleContainer";
+
+
+CurlHandleContainer::CurlHandleContainer(unsigned maxSize, long httpRequestTimeout, long connectTimeout, bool enableTcpKeepAlive,
+                                        unsigned long tcpKeepAliveIntervalMs, long lowSpeedTime, unsigned long lowSpeedLimit) :
+                m_maxPoolSize(maxSize), m_httpRequestTimeout(httpRequestTimeout), m_connectTimeout(connectTimeout), m_enableTcpKeepAlive(enableTcpKeepAlive),
+                m_tcpKeepAliveIntervalMs(tcpKeepAliveIntervalMs), m_lowSpeedTime(lowSpeedTime), m_lowSpeedLimit(lowSpeedLimit), m_poolSize(0)
+{
+    AWS_LOGSTREAM_INFO(CURL_HANDLE_CONTAINER_TAG, "Initializing CurlHandleContainer with size " << maxSize);
+}
+
+CurlHandleContainer::~CurlHandleContainer()
+{
+    AWS_LOGSTREAM_INFO(CURL_HANDLE_CONTAINER_TAG, "Cleaning up CurlHandleContainer.");
+    for (CURL* handle : m_handleContainer.ShutdownAndWait(m_poolSize))
+    {
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Cleaning up " << handle);
+        curl_easy_cleanup(handle);
+    }
+}
+
+CURL* CurlHandleContainer::AcquireCurlHandle()
+{
+    AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Attempting to acquire curl connection.");
+
+    if(!m_handleContainer.HasResourcesAvailable())
+    {
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "No current connections available in pool. Attempting to create new connections.");
+        CheckAndGrowPool();
+    }
+
+    CURL* handle = m_handleContainer.Acquire();
+    AWS_LOGSTREAM_INFO(CURL_HANDLE_CONTAINER_TAG, "Connection has been released. Continuing.");
+    AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Returning connection handle " << handle);
+    return handle;
+}
+
+void CurlHandleContainer::ReleaseCurlHandle(CURL* handle)
+{
+    if (handle)
+    {
+        curl_easy_reset(handle);
+        SetDefaultOptionsOnHandle(handle);
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Releasing curl handle " << handle);
+        m_handleContainer.Release(handle);
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Notified waiting threads.");
+    }
+}
+
+void CurlHandleContainer::DestroyCurlHandle(CURL* handle)
+{
+    if (!handle)
+    {
+        return;
+    }
+
+    curl_easy_cleanup(handle);
+    AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Destroy curl handle: " << handle);
+    {
+        std::lock_guard<std::mutex> locker(m_containerLock);
+        // Other threads could be blocked and waiting on m_handleContainer.Acquire()
+        // If the handle is not released back to the pool, it could create a deadlock
+        // Create a new handle and release that into the pool
+        handle = CreateCurlHandleInPool();
+    }
+    if (handle)
+    {
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "Created replacement handle and released to pool: " << handle);
+    }
+}
+
+
+CURL* CurlHandleContainer::CreateCurlHandleInPool()
+{
+    CURL* curlHandle = curl_easy_init();
+
+    if (curlHandle)
+    {
+        SetDefaultOptionsOnHandle(curlHandle);
+        m_handleContainer.Release(curlHandle);
+    }
+    else
+    {
+        AWS_LOGSTREAM_ERROR(CURL_HANDLE_CONTAINER_TAG, "curl_easy_init failed to allocate.");
+    }
+    return curlHandle;
+}
+
+bool CurlHandleContainer::CheckAndGrowPool()
+{
+    std::lock_guard<std::mutex> locker(m_containerLock);
+    if (m_poolSize < m_maxPoolSize)
+    {
+        unsigned multiplier = m_poolSize > 0 ? m_poolSize : 1;
+        unsigned amountToAdd = (std::min)(multiplier * 2, m_maxPoolSize - m_poolSize);
+        AWS_LOGSTREAM_DEBUG(CURL_HANDLE_CONTAINER_TAG, "attempting to grow pool size by " << amountToAdd);
+
+        unsigned actuallyAdded = 0;
+        for (unsigned i = 0; i < amountToAdd; ++i)
+        {
+            CURL* curlHandle = CreateCurlHandleInPool();
+
+            if (curlHandle)
+            {
+                ++actuallyAdded;
+            }
+            else
+            {
+                break;
+            }
+        }
+
+        AWS_LOGSTREAM_INFO(CURL_HANDLE_CONTAINER_TAG, "Pool grown by " << actuallyAdded);
+        m_poolSize += actuallyAdded;
+
+        return actuallyAdded > 0;
+    }
+
+    AWS_LOGSTREAM_INFO(CURL_HANDLE_CONTAINER_TAG, "Pool cannot be grown any further, already at max size.");
+
+    return false;
+}
+
+void CurlHandleContainer::SetDefaultOptionsOnHandle(CURL* handle)
+{
+    //for timeouts to work in a multi-threaded context,
+    //always turn signals off. This also forces dns queries to
+    //not be included in the timeout calculations.
+    curl_easy_setopt(handle, CURLOPT_NOSIGNAL, 1L);
+    curl_easy_setopt(handle, CURLOPT_TIMEOUT_MS, m_httpRequestTimeout);
+    curl_easy_setopt(handle, CURLOPT_CONNECTTIMEOUT_MS, m_connectTimeout);
+    curl_easy_setopt(handle, CURLOPT_LOW_SPEED_LIMIT, m_lowSpeedLimit);
+    curl_easy_setopt(handle, CURLOPT_LOW_SPEED_TIME, m_lowSpeedTime < 1000 ? (m_lowSpeedTime == 0 ? 0 : 1) : m_lowSpeedTime / 1000);
+    curl_easy_setopt(handle, CURLOPT_TCP_KEEPALIVE, m_enableTcpKeepAlive ? 1L : 0L);
+    curl_easy_setopt(handle, CURLOPT_TCP_KEEPINTVL, m_tcpKeepAliveIntervalMs / 1000);
+    curl_easy_setopt(handle, CURLOPT_TCP_KEEPIDLE, m_tcpKeepAliveIntervalMs / 1000);
+#ifdef CURL_HAS_H2
+    curl_easy_setopt(handle, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
+#endif
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHttpClient.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHttpClient.cpp
new file mode 100644
index 0000000000..2fb9cc9643
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/curl/CurlHttpClient.cpp
@@ -0,0 +1,730 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/curl/CurlHttpClient.h>
+#include <aws/core/http/HttpRequest.h>
+#include <aws/core/http/standard/StandardHttpResponse.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/ratelimiter/RateLimiterInterface.h>
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/monitoring/HttpClientMetrics.h>
+#include <cassert>
+#include <algorithm>
+
+
+using namespace Aws::Client;
+using namespace Aws::Http;
+using namespace Aws::Http::Standard;
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+using namespace Aws::Monitoring;
+
+#ifdef AWS_CUSTOM_MEMORY_MANAGEMENT
+
+static const char* MemTag = "libcurl";
+static size_t offset = sizeof(size_t);
+
+static void* malloc_callback(size_t size)
+{
+    char* newMem = reinterpret_cast<char*>(Aws::Malloc(MemTag, size + offset));
+    std::size_t* pointerToSize = reinterpret_cast<std::size_t*>(newMem);
+    *pointerToSize = size;
+    return reinterpret_cast<void*>(newMem + offset);
+}
+
+static void free_callback(void* ptr)
+{
+    if(ptr)
+    {
+        char* shiftedMemory = reinterpret_cast<char*>(ptr);
+        Aws::Free(shiftedMemory - offset);
+    }
+}
+
+static void* realloc_callback(void* ptr, size_t size)
+{
+    if(!ptr)
+    {
+        return malloc_callback(size);
+    }
+
+
+    if(!size && ptr)
+    {
+        free_callback(ptr);
+        return nullptr;
+    }
+
+    char* originalLenCharPtr = reinterpret_cast<char*>(ptr) - offset;
+    size_t originalLen = *reinterpret_cast<size_t*>(originalLenCharPtr);
+
+    char* rawMemory = reinterpret_cast<char*>(Aws::Malloc(MemTag, size + offset));
+    if(rawMemory)
+    {
+        std::size_t* pointerToSize = reinterpret_cast<std::size_t*>(rawMemory);
+        *pointerToSize = size;
+
+        size_t copyLength = (std::min)(originalLen, size);
+#ifdef _MSC_VER
+        memcpy_s(rawMemory + offset, size, ptr, copyLength);
+#else
+        memcpy(rawMemory + offset, ptr, copyLength);
+#endif
+        free_callback(ptr);
+        return reinterpret_cast<void*>(rawMemory + offset);
+    }
+    else
+    {
+        return ptr;
+    }
+
+}
+
+static void* calloc_callback(size_t nmemb, size_t size)
+{
+    size_t dataSize = nmemb * size;
+    char* newMem = reinterpret_cast<char*>(Aws::Malloc(MemTag, dataSize + offset));
+    std::size_t* pointerToSize = reinterpret_cast<std::size_t*>(newMem);
+    *pointerToSize = dataSize;
+#ifdef _MSC_VER
+    memset_s(newMem + offset, dataSize, 0, dataSize);
+#else
+    memset(newMem + offset, 0, dataSize);
+#endif
+
+    return reinterpret_cast<void*>(newMem + offset);
+}
+
+static char* strdup_callback(const char* str)
+{
+    size_t len = strlen(str) + 1;
+    size_t newLen = len + offset;
+    char* newMem = reinterpret_cast<char*>(Aws::Malloc(MemTag, newLen));
+
+    if(newMem)
+    {
+        std::size_t* pointerToSize = reinterpret_cast<std::size_t*>(newMem);
+        *pointerToSize = len;
+#ifdef _MSC_VER
+        memcpy_s(newMem + offset, len, str, len);
+#else
+        memcpy(newMem + offset, str, len);
+#endif
+        return newMem + offset;
+    }
+    return nullptr;
+}
+
+#endif
+
+struct CurlWriteCallbackContext
+{
+    CurlWriteCallbackContext(const CurlHttpClient* client,
+                             HttpRequest* request,
+                             HttpResponse* response,
+                             Aws::Utils::RateLimits::RateLimiterInterface* rateLimiter) :
+        m_client(client),
+        m_request(request),
+        m_response(response),
+        m_rateLimiter(rateLimiter),
+        m_numBytesResponseReceived(0)
+    {}
+
+    const CurlHttpClient* m_client;
+    HttpRequest* m_request;
+    HttpResponse* m_response;
+    Aws::Utils::RateLimits::RateLimiterInterface* m_rateLimiter;
+    int64_t m_numBytesResponseReceived;
+};
+
+struct CurlReadCallbackContext
+{
+    CurlReadCallbackContext(const CurlHttpClient* client, HttpRequest* request, Aws::Utils::RateLimits::RateLimiterInterface* limiter) :
+        m_client(client),
+        m_rateLimiter(limiter),
+        m_request(request)
+    {}
+
+    const CurlHttpClient* m_client;
+    CURL* m_curlHandle;
+    Aws::Utils::RateLimits::RateLimiterInterface* m_rateLimiter;
+    HttpRequest* m_request;
+};
+
+static const char* CURL_HTTP_CLIENT_TAG = "CurlHttpClient";
+
+static size_t WriteData(char* ptr, size_t size, size_t nmemb, void* userdata)
+{
+    if (ptr)
+    {
+        CurlWriteCallbackContext* context = reinterpret_cast<CurlWriteCallbackContext*>(userdata);
+
+        const CurlHttpClient* client = context->m_client;
+        if(!client->ContinueRequest(*context->m_request) || !client->IsRequestProcessingEnabled())
+        {
+            return 0;
+        }
+
+        HttpResponse* response = context->m_response;
+        size_t sizeToWrite = size * nmemb;
+        if (context->m_rateLimiter)
+        {
+            context->m_rateLimiter->ApplyAndPayForCost(static_cast<int64_t>(sizeToWrite));
+        }
+
+        response->GetResponseBody().write(ptr, static_cast<std::streamsize>(sizeToWrite));
+        if (context->m_request->IsEventStreamRequest())
+        {
+            response->GetResponseBody().flush();
+        }
+        auto& receivedHandler = context->m_request->GetDataReceivedEventHandler();
+        if (receivedHandler)
+        {
+            receivedHandler(context->m_request, context->m_response, static_cast<long long>(sizeToWrite));
+        }
+
+        AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, sizeToWrite << " bytes written to response.");
+        context->m_numBytesResponseReceived += sizeToWrite;
+        return sizeToWrite;
+    }
+    return 0;
+}
+
+static size_t WriteHeader(char* ptr, size_t size, size_t nmemb, void* userdata)
+{
+    if (ptr)
+    {
+        CurlWriteCallbackContext* context = reinterpret_cast<CurlWriteCallbackContext*>(userdata);
+        AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, ptr);
+        HttpResponse* response = context->m_response;
+        Aws::String headerLine(ptr);
+        Aws::Vector<Aws::String> keyValuePair = StringUtils::Split(headerLine, ':', 2);
+
+        if (keyValuePair.size() == 2)
+        {
+            response->AddHeader(StringUtils::Trim(keyValuePair[0].c_str()), StringUtils::Trim(keyValuePair[1].c_str()));
+        }
+
+        return size * nmemb;
+    }
+    return 0;
+}
+
+
+static size_t ReadBody(char* ptr, size_t size, size_t nmemb, void* userdata)
+{
+    CurlReadCallbackContext* context = reinterpret_cast<CurlReadCallbackContext*>(userdata);
+    if(context == nullptr)
+    {
+        return 0;
+    }
+
+    const CurlHttpClient* client = context->m_client;
+    if(!client->ContinueRequest(*context->m_request) || !client->IsRequestProcessingEnabled())
+    {
+        return CURL_READFUNC_ABORT;
+    }
+
+    HttpRequest* request = context->m_request;
+    const std::shared_ptr<Aws::IOStream>& ioStream = request->GetContentBody();
+
+    const size_t amountToRead = size * nmemb;
+    if (ioStream != nullptr && amountToRead > 0)
+    {
+        if (request->IsEventStreamRequest())
+        {
+            // Waiting for next available character to read.
+            // Without peek(), readsome() will keep reading 0 byte from the stream.
+            ioStream->peek();
+            ioStream->readsome(ptr, amountToRead);
+        }
+        else
+        {
+            ioStream->read(ptr, amountToRead);
+        }
+        size_t amountRead = static_cast<size_t>(ioStream->gcount());
+        auto& sentHandler = request->GetDataSentEventHandler();
+        if (sentHandler)
+        {
+            sentHandler(request, static_cast<long long>(amountRead));
+        }
+
+        if (context->m_rateLimiter)
+        {
+            context->m_rateLimiter->ApplyAndPayForCost(static_cast<int64_t>(amountRead));
+        }
+
+        return amountRead;
+    }
+
+    return 0;
+}
+
+static size_t SeekBody(void* userdata, curl_off_t offset, int origin)
+{
+    CurlReadCallbackContext* context = reinterpret_cast<CurlReadCallbackContext*>(userdata);
+    if(context == nullptr)
+    {
+        return CURL_SEEKFUNC_FAIL;
+    }
+
+    const CurlHttpClient* client = context->m_client;
+    if(!client->ContinueRequest(*context->m_request) || !client->IsRequestProcessingEnabled())
+    {
+        return CURL_SEEKFUNC_FAIL;
+    }
+
+    HttpRequest* request = context->m_request;
+    const std::shared_ptr<Aws::IOStream>& ioStream = request->GetContentBody();
+
+    std::ios_base::seekdir dir;
+    switch(origin)
+    {
+        case SEEK_SET:
+            dir = std::ios_base::beg;
+            break;
+        case SEEK_CUR:
+            dir = std::ios_base::cur;
+            break;
+        case SEEK_END:
+            dir = std::ios_base::end;
+            break;
+        default:
+            return CURL_SEEKFUNC_FAIL;
+    }
+
+    ioStream->clear();
+    ioStream->seekg(offset, dir);
+    if (ioStream->fail()) {
+        return CURL_SEEKFUNC_CANTSEEK;
+    }
+
+    return CURL_SEEKFUNC_OK;
+}
+
+void SetOptCodeForHttpMethod(CURL* requestHandle, const std::shared_ptr<HttpRequest>& request)
+{
+    switch (request->GetMethod())
+    {
+        case HttpMethod::HTTP_GET:
+            curl_easy_setopt(requestHandle, CURLOPT_HTTPGET, 1L);
+            break;
+        case HttpMethod::HTTP_POST:
+            if (request->HasHeader(Aws::Http::CONTENT_LENGTH_HEADER) && request->GetHeaderValue(Aws::Http::CONTENT_LENGTH_HEADER) == "0")
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "POST");
+            }
+            else
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_POST, 1L);
+            }
+            break;
+        case HttpMethod::HTTP_PUT:
+            if ((!request->HasHeader(Aws::Http::CONTENT_LENGTH_HEADER) || request->GetHeaderValue(Aws::Http::CONTENT_LENGTH_HEADER) == "0") &&
+                 !request->HasHeader(Aws::Http::TRANSFER_ENCODING_HEADER))
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "PUT");
+            }
+            else
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_PUT, 1L);
+            }
+            break;
+        case HttpMethod::HTTP_HEAD:
+            curl_easy_setopt(requestHandle, CURLOPT_HTTPGET, 1L);
+            curl_easy_setopt(requestHandle, CURLOPT_NOBODY, 1L);
+            break;
+        case HttpMethod::HTTP_PATCH:
+            if ((!request->HasHeader(Aws::Http::CONTENT_LENGTH_HEADER)|| request->GetHeaderValue(Aws::Http::CONTENT_LENGTH_HEADER) == "0") &&
+                 !request->HasHeader(Aws::Http::TRANSFER_ENCODING_HEADER))
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "PATCH");
+            }
+            else
+            {
+                curl_easy_setopt(requestHandle, CURLOPT_POST, 1L);
+                curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "PATCH");
+            }
+
+            break;
+        case HttpMethod::HTTP_DELETE:
+            curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "DELETE");
+            break;
+        default:
+            assert(0);
+            curl_easy_setopt(requestHandle, CURLOPT_CUSTOMREQUEST, "GET");
+            break;
+    }
+}
+
+
+std::atomic<bool> CurlHttpClient::isInit(false);
+
+void CurlHttpClient::InitGlobalState()
+{
+    if (!isInit)
+    {
+        auto curlVersionData = curl_version_info(CURLVERSION_NOW);
+        AWS_LOGSTREAM_INFO(CURL_HTTP_CLIENT_TAG, "Initializing Curl library with version: " << curlVersionData->version
+            << ", ssl version: " << curlVersionData->ssl_version);
+        isInit = true;
+#ifdef AWS_CUSTOM_MEMORY_MANAGEMENT
+        curl_global_init_mem(CURL_GLOBAL_ALL, &malloc_callback, &free_callback, &realloc_callback, &strdup_callback, &calloc_callback);
+#else
+        curl_global_init(CURL_GLOBAL_ALL);
+#endif
+    }
+}
+
+
+void CurlHttpClient::CleanupGlobalState()
+{
+    curl_global_cleanup();
+}
+
+Aws::String CurlInfoTypeToString(curl_infotype type)
+{
+    switch(type)
+    {
+        case CURLINFO_TEXT:
+            return "Text";
+
+        case CURLINFO_HEADER_IN:
+            return "HeaderIn";
+
+        case CURLINFO_HEADER_OUT:
+            return "HeaderOut";
+
+        case CURLINFO_DATA_IN:
+            return "DataIn";
+
+        case CURLINFO_DATA_OUT:
+            return "DataOut";
+
+        case CURLINFO_SSL_DATA_IN:
+            return "SSLDataIn";
+
+        case CURLINFO_SSL_DATA_OUT:
+            return "SSLDataOut";
+
+        default:
+            return "Unknown";
+    }
+}
+
+int CurlDebugCallback(CURL *handle, curl_infotype type, char *data, size_t size, void *userptr)
+{
+    AWS_UNREFERENCED_PARAM(handle);
+    AWS_UNREFERENCED_PARAM(userptr);
+
+    if(type == CURLINFO_SSL_DATA_IN || type == CURLINFO_SSL_DATA_OUT)
+    {
+        AWS_LOGSTREAM_DEBUG("CURL", "(" << CurlInfoTypeToString(type) << ") " << size << "bytes");
+    }
+    else
+    {
+        Aws::String debugString(data, size);
+        AWS_LOGSTREAM_DEBUG("CURL", "(" << CurlInfoTypeToString(type) << ") " << debugString);
+    }
+
+    return 0;
+}
+
+
+CurlHttpClient::CurlHttpClient(const ClientConfiguration& clientConfig) :
+    Base(),
+    m_curlHandleContainer(clientConfig.maxConnections, clientConfig.httpRequestTimeoutMs, clientConfig.connectTimeoutMs, clientConfig.enableTcpKeepAlive,
+                          clientConfig.tcpKeepAliveIntervalMs, clientConfig.requestTimeoutMs, clientConfig.lowSpeedLimit),
+    m_isUsingProxy(!clientConfig.proxyHost.empty()), m_proxyUserName(clientConfig.proxyUserName),
+    m_proxyPassword(clientConfig.proxyPassword), m_proxyScheme(SchemeMapper::ToString(clientConfig.proxyScheme)), m_proxyHost(clientConfig.proxyHost),
+    m_proxySSLCertPath(clientConfig.proxySSLCertPath), m_proxySSLCertType(clientConfig.proxySSLCertType),
+    m_proxySSLKeyPath(clientConfig.proxySSLKeyPath), m_proxySSLKeyType(clientConfig.proxySSLKeyType),
+    m_proxyKeyPasswd(clientConfig.proxySSLKeyPassword),
+    m_proxyPort(clientConfig.proxyPort), m_verifySSL(clientConfig.verifySSL), m_caPath(clientConfig.caPath),
+    m_caFile(clientConfig.caFile), m_proxyCaPath(clientConfig.proxyCaPath), m_proxyCaFile(clientConfig.proxyCaFile),
+    m_disableExpectHeader(clientConfig.disableExpectHeader)
+{
+    if (clientConfig.followRedirects == FollowRedirectsPolicy::NEVER ||
+       (clientConfig.followRedirects == FollowRedirectsPolicy::DEFAULT && clientConfig.region == Aws::Region::AWS_GLOBAL))
+    {
+        m_allowRedirects = false;
+    }
+    else
+    {
+        m_allowRedirects = true;
+    }
+}
+
+
+std::shared_ptr<HttpResponse> CurlHttpClient::MakeRequest(const std::shared_ptr<HttpRequest>& request,
+    Aws::Utils::RateLimits::RateLimiterInterface* readLimiter,
+    Aws::Utils::RateLimits::RateLimiterInterface* writeLimiter) const
+{
+    URI uri = request->GetUri();
+    Aws::String url = uri.GetURIString();
+    std::shared_ptr<HttpResponse> response = Aws::MakeShared<StandardHttpResponse>(CURL_HTTP_CLIENT_TAG, request);
+
+    AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, "Making request to " << url);
+    struct curl_slist* headers = NULL;
+
+    if (writeLimiter != nullptr)
+    {
+        writeLimiter->ApplyAndPayForCost(request->GetSize());
+    }
+
+    Aws::StringStream headerStream;
+    HeaderValueCollection requestHeaders = request->GetHeaders();
+
+    AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, "Including headers:");
+    for (auto& requestHeader : requestHeaders)
+    {
+        headerStream.str("");
+        headerStream << requestHeader.first << ": " << requestHeader.second;
+        Aws::String headerString = headerStream.str();
+        AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, headerString);
+        headers = curl_slist_append(headers, headerString.c_str());
+    }
+
+    if (!request->HasHeader(Http::TRANSFER_ENCODING_HEADER))
+    {
+        headers = curl_slist_append(headers, "transfer-encoding:");
+    }
+
+    if (!request->HasHeader(Http::CONTENT_LENGTH_HEADER))
+    {
+        headers = curl_slist_append(headers, "content-length:");
+    }
+
+    if (!request->HasHeader(Http::CONTENT_TYPE_HEADER))
+    {
+        headers = curl_slist_append(headers, "content-type:");
+    }
+
+    // Discard Expect header so as to avoid using multiple payloads to send a http request (header + body)
+    if (m_disableExpectHeader)
+    {
+        headers = curl_slist_append(headers, "Expect:");
+    }
+
+    CURL* connectionHandle = m_curlHandleContainer.AcquireCurlHandle();
+
+    if (connectionHandle)
+    {
+        AWS_LOGSTREAM_DEBUG(CURL_HTTP_CLIENT_TAG, "Obtained connection handle " << connectionHandle);
+
+        if (headers)
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_HTTPHEADER, headers);
+        }
+
+        CurlWriteCallbackContext writeContext(this, request.get(), response.get(), readLimiter);
+        CurlReadCallbackContext readContext(this, request.get(), writeLimiter);
+
+        SetOptCodeForHttpMethod(connectionHandle, request);
+
+        curl_easy_setopt(connectionHandle, CURLOPT_URL, url.c_str());
+        curl_easy_setopt(connectionHandle, CURLOPT_WRITEFUNCTION, WriteData);
+        curl_easy_setopt(connectionHandle, CURLOPT_WRITEDATA, &writeContext);
+        curl_easy_setopt(connectionHandle, CURLOPT_HEADERFUNCTION, WriteHeader);
+        curl_easy_setopt(connectionHandle, CURLOPT_HEADERDATA, &writeContext);
+
+        //we only want to override the default path if someone has explicitly told us to.
+        if(!m_caPath.empty())
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_CAPATH, m_caPath.c_str());
+        }
+        if(!m_caFile.empty())
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_CAINFO, m_caFile.c_str());
+        }
+
+	// only set by android test builds because the emulator is missing a cert needed for aws services
+#ifdef TEST_CERT_PATH
+	curl_easy_setopt(connectionHandle, CURLOPT_CAPATH, TEST_CERT_PATH);
+#endif // TEST_CERT_PATH
+
+        if (m_verifySSL)
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_SSL_VERIFYPEER, 1L);
+            curl_easy_setopt(connectionHandle, CURLOPT_SSL_VERIFYHOST, 2L);
+
+#if LIBCURL_VERSION_MAJOR >= 7
+#if LIBCURL_VERSION_MINOR >= 34
+            curl_easy_setopt(connectionHandle, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
+#endif //LIBCURL_VERSION_MINOR
+#endif //LIBCURL_VERSION_MAJOR
+        }
+        else
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_SSL_VERIFYPEER, 0L);
+            curl_easy_setopt(connectionHandle, CURLOPT_SSL_VERIFYHOST, 0L);
+        }
+
+        if (m_allowRedirects)
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_FOLLOWLOCATION, 1L);
+        }
+        else
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_FOLLOWLOCATION, 0L);
+        }
+
+#ifdef ENABLE_CURL_LOGGING
+        curl_easy_setopt(connectionHandle, CURLOPT_VERBOSE, 1);
+        curl_easy_setopt(connectionHandle, CURLOPT_DEBUGFUNCTION, CurlDebugCallback);
+#endif
+        if (m_isUsingProxy)
+        {
+            Aws::StringStream ss;
+            ss << m_proxyScheme << "://" << m_proxyHost;
+            curl_easy_setopt(connectionHandle, CURLOPT_PROXY, ss.str().c_str());
+            curl_easy_setopt(connectionHandle, CURLOPT_PROXYPORT, (long) m_proxyPort);
+            if(!m_proxyCaPath.empty())
+            {
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXY_CAPATH, m_proxyCaPath.c_str());
+            }
+            if(!m_proxyCaFile.empty())
+            {
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXY_CAINFO, m_proxyCaFile.c_str());
+            }
+            if (!m_proxyUserName.empty() || !m_proxyPassword.empty())
+            {
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXYUSERNAME, m_proxyUserName.c_str());
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXYPASSWORD, m_proxyPassword.c_str());
+            }
+#ifdef CURL_HAS_TLS_PROXY
+            if (!m_proxySSLCertPath.empty())
+            {
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXY_SSLCERT, m_proxySSLCertPath.c_str());
+                if (!m_proxySSLCertType.empty())
+                {
+                    curl_easy_setopt(connectionHandle, CURLOPT_PROXY_SSLCERTTYPE, m_proxySSLCertType.c_str());
+                }
+            }
+            if (!m_proxySSLKeyPath.empty())
+            {
+                curl_easy_setopt(connectionHandle, CURLOPT_PROXY_SSLKEY, m_proxySSLKeyPath.c_str());
+                if (!m_proxySSLKeyType.empty())
+                {
+                    curl_easy_setopt(connectionHandle, CURLOPT_PROXY_SSLKEYTYPE, m_proxySSLKeyType.c_str());
+                }
+                if (!m_proxyKeyPasswd.empty())
+                {
+                    curl_easy_setopt(connectionHandle, CURLOPT_PROXY_KEYPASSWD, m_proxyKeyPasswd.c_str());
+                }
+            }
+#endif //CURL_HAS_TLS_PROXY
+        }
+        else
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_PROXY, "");
+        }
+
+        if (request->GetContentBody())
+        {
+            curl_easy_setopt(connectionHandle, CURLOPT_READFUNCTION, ReadBody);
+            curl_easy_setopt(connectionHandle, CURLOPT_READDATA, &readContext);
+            curl_easy_setopt(connectionHandle, CURLOPT_SEEKFUNCTION, SeekBody);
+            curl_easy_setopt(connectionHandle, CURLOPT_SEEKDATA, &readContext);
+        }
+
+        OverrideOptionsOnConnectionHandle(connectionHandle);
+        Aws::Utils::DateTime startTransmissionTime = Aws::Utils::DateTime::Now();
+        CURLcode curlResponseCode = curl_easy_perform(connectionHandle);
+        bool shouldContinueRequest = ContinueRequest(*request);
+        if (curlResponseCode != CURLE_OK && shouldContinueRequest)
+        {
+            response->SetClientErrorType(CoreErrors::NETWORK_CONNECTION);
+            Aws::StringStream ss;
+            ss << "curlCode: " << curlResponseCode << ", " << curl_easy_strerror(curlResponseCode);
+            response->SetClientErrorMessage(ss.str());
+            AWS_LOGSTREAM_ERROR(CURL_HTTP_CLIENT_TAG, "Curl returned error code " << curlResponseCode
+                    << " - " << curl_easy_strerror(curlResponseCode));
+        }
+        else if(!shouldContinueRequest)
+        {
+            response->SetClientErrorType(CoreErrors::USER_CANCELLED);
+            response->SetClientErrorMessage("Request cancelled by user's continuation handler");
+        }
+        else
+        {
+            long responseCode;
+            curl_easy_getinfo(connectionHandle, CURLINFO_RESPONSE_CODE, &responseCode);
+            response->SetResponseCode(static_cast<HttpResponseCode>(responseCode));
+            AWS_LOGSTREAM_DEBUG(CURL_HTTP_CLIENT_TAG, "Returned http response code " << responseCode);
+
+            char* contentType = nullptr;
+            curl_easy_getinfo(connectionHandle, CURLINFO_CONTENT_TYPE, &contentType);
+            if (contentType)
+            {
+                response->SetContentType(contentType);
+                AWS_LOGSTREAM_DEBUG(CURL_HTTP_CLIENT_TAG, "Returned content type " << contentType);
+            }
+
+            if (request->GetMethod() != HttpMethod::HTTP_HEAD &&
+                writeContext.m_client->IsRequestProcessingEnabled() &&
+                response->HasHeader(Aws::Http::CONTENT_LENGTH_HEADER))
+            {
+                const Aws::String& contentLength = response->GetHeader(Aws::Http::CONTENT_LENGTH_HEADER);
+                int64_t numBytesResponseReceived = writeContext.m_numBytesResponseReceived;
+                AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, "Response content-length header: " << contentLength);
+                AWS_LOGSTREAM_TRACE(CURL_HTTP_CLIENT_TAG, "Response body length: " << numBytesResponseReceived);
+                if (StringUtils::ConvertToInt64(contentLength.c_str()) != numBytesResponseReceived)
+                {
+                    response->SetClientErrorType(CoreErrors::NETWORK_CONNECTION);
+                    response->SetClientErrorMessage("Response body length doesn't match the content-length header.");
+                    AWS_LOGSTREAM_ERROR(CURL_HTTP_CLIENT_TAG, "Response body length doesn't match the content-length header.");
+                }
+            }
+
+            AWS_LOGSTREAM_DEBUG(CURL_HTTP_CLIENT_TAG, "Releasing curl handle " << connectionHandle);
+        }
+
+        double timep;
+        CURLcode ret = curl_easy_getinfo(connectionHandle, CURLINFO_NAMELOOKUP_TIME, &timep); // DNS Resolve Latency, seconds.
+        if (ret == CURLE_OK)
+        {
+            request->AddRequestMetric(GetHttpClientMetricNameByType(HttpClientMetricsType::DnsLatency), static_cast<int64_t>(timep * 1000));// to milliseconds
+        }
+
+        ret = curl_easy_getinfo(connectionHandle, CURLINFO_STARTTRANSFER_TIME, &timep); // Connect Latency
+        if (ret == CURLE_OK)
+        {
+            request->AddRequestMetric(GetHttpClientMetricNameByType(HttpClientMetricsType::ConnectLatency), static_cast<int64_t>(timep * 1000));
+        }
+
+        ret = curl_easy_getinfo(connectionHandle, CURLINFO_APPCONNECT_TIME, &timep); // Ssl Latency
+        if (ret == CURLE_OK)
+        {
+            request->AddRequestMetric(GetHttpClientMetricNameByType(HttpClientMetricsType::SslLatency), static_cast<int64_t>(timep * 1000));
+        }
+
+        const char* ip = nullptr;
+        auto curlGetInfoResult = curl_easy_getinfo(connectionHandle, CURLINFO_PRIMARY_IP, &ip); // Get the IP address of the remote endpoint
+        if (curlGetInfoResult == CURLE_OK && ip)
+        {
+            request->SetResolvedRemoteHost(ip);
+        }
+        if (curlResponseCode != CURLE_OK)
+        {
+            m_curlHandleContainer.DestroyCurlHandle(connectionHandle);
+        }
+        else
+        {
+            m_curlHandleContainer.ReleaseCurlHandle(connectionHandle);
+        }
+        //go ahead and flush the response body stream
+        response->GetResponseBody().flush();
+        request->AddRequestMetric(GetHttpClientMetricNameByType(HttpClientMetricsType::RequestLatency), (DateTime::Now() - startTransmissionTime).count());
+    }
+
+    if (headers)
+    {
+        curl_slist_free_all(headers);
+    }
+
+    return response;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpRequest.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpRequest.cpp
new file mode 100644
index 0000000000..47a0ee4fac
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpRequest.cpp
@@ -0,0 +1,104 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/standard/StandardHttpRequest.h>
+
+#include <aws/core/utils/StringUtils.h>
+
+#include <iostream>
+#include <algorithm>
+#include <cassert>
+
+using namespace Aws::Http;
+using namespace Aws::Http::Standard;
+using namespace Aws::Utils;
+
+static bool IsDefaultPort(const URI& uri)
+{
+    switch(uri.GetPort())
+    {
+        case 80:
+            return uri.GetScheme() == Scheme::HTTP;
+        case 443:
+            return uri.GetScheme() == Scheme::HTTPS;
+        default:
+            return false;
+    }
+}
+
+StandardHttpRequest::StandardHttpRequest(const URI& uri, HttpMethod method) :
+    HttpRequest(uri, method), 
+    bodyStream(nullptr),
+    m_responseStreamFactory()
+{
+    if(IsDefaultPort(uri))
+    {
+        StandardHttpRequest::SetHeaderValue(HOST_HEADER, uri.GetAuthority());
+    }
+    else
+    {
+        Aws::StringStream host;
+        host << uri.GetAuthority() << ":" << uri.GetPort();
+        StandardHttpRequest::SetHeaderValue(HOST_HEADER, host.str());
+    }
+}
+
+HeaderValueCollection StandardHttpRequest::GetHeaders() const
+{
+    HeaderValueCollection headers;
+
+    for (HeaderValueCollection::const_iterator iter = headerMap.begin(); iter != headerMap.end(); ++iter)
+    {
+        headers.emplace(HeaderValuePair(iter->first, iter->second));
+    }
+
+    return headers;
+}
+
+const Aws::String& StandardHttpRequest::GetHeaderValue(const char* headerName) const
+{
+    auto iter = headerMap.find(headerName);
+    assert (iter != headerMap.end());
+    return iter->second;
+}
+
+void StandardHttpRequest::SetHeaderValue(const char* headerName, const Aws::String& headerValue)
+{
+    headerMap[StringUtils::ToLower(headerName)] = StringUtils::Trim(headerValue.c_str());
+}
+
+void StandardHttpRequest::SetHeaderValue(const Aws::String& headerName, const Aws::String& headerValue)
+{
+    headerMap[StringUtils::ToLower(headerName.c_str())] = StringUtils::Trim(headerValue.c_str());
+}
+
+void StandardHttpRequest::DeleteHeader(const char* headerName)
+{
+    headerMap.erase(StringUtils::ToLower(headerName));
+}
+
+bool StandardHttpRequest::HasHeader(const char* headerName) const
+{
+    return headerMap.find(StringUtils::ToLower(headerName)) != headerMap.end();
+}
+
+int64_t StandardHttpRequest::GetSize() const
+{
+    int64_t size = 0;
+
+    std::for_each(headerMap.cbegin(), headerMap.cend(), [&](const HeaderValueCollection::value_type& kvPair){ size += kvPair.first.length(); size += kvPair.second.length(); });
+
+    return size;
+}
+
+const Aws::IOStreamFactory& StandardHttpRequest::GetResponseStreamFactory() const 
+{ 
+    return m_responseStreamFactory; 
+}
+
+void StandardHttpRequest::SetResponseStreamFactory(const Aws::IOStreamFactory& factory) 
+{ 
+    m_responseStreamFactory = factory; 
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpResponse.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpResponse.cpp
new file mode 100644
index 0000000000..92d7a062b6
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/http/standard/StandardHttpResponse.cpp
@@ -0,0 +1,46 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/http/standard/StandardHttpResponse.h>
+
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+
+#include <istream>
+
+using namespace Aws::Http;
+using namespace Aws::Http::Standard;
+using namespace Aws::Utils;
+
+
+HeaderValueCollection StandardHttpResponse::GetHeaders() const
+{
+    HeaderValueCollection headerValueCollection;
+
+    for (Aws::Map<Aws::String, Aws::String>::const_iterator iter = headerMap.begin(); iter != headerMap.end(); ++iter)
+    {
+        headerValueCollection.emplace(HeaderValuePair(iter->first, iter->second));
+    }
+
+    return headerValueCollection;
+}
+
+bool StandardHttpResponse::HasHeader(const char* headerName) const
+{
+    return headerMap.find(StringUtils::ToLower(headerName)) != headerMap.end();
+}
+
+const Aws::String& StandardHttpResponse::GetHeader(const Aws::String& headerName) const
+{
+    Aws::Map<Aws::String, Aws::String>::const_iterator foundValue = headerMap.find(StringUtils::ToLower(headerName.c_str()));
+    return foundValue->second;
+}
+
+void StandardHttpResponse::AddHeader(const Aws::String& headerName, const Aws::String& headerValue)
+{
+    headerMap[StringUtils::ToLower(headerName.c_str())] = headerValue;
+}
+
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/internal/AWSHttpResourceClient.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/internal/AWSHttpResourceClient.cpp
new file mode 100644
index 0000000000..24145e4d92
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/internal/AWSHttpResourceClient.cpp
@@ -0,0 +1,506 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/internal/AWSHttpResourceClient.h>
+#include <aws/core/client/DefaultRetryStrategy.h>
+#include <aws/core/http/HttpClient.h>
+#include <aws/core/http/HttpClientFactory.h>
+#include <aws/core/http/HttpResponse.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/client/AWSError.h>
+#include <aws/core/client/CoreErrors.h>
+#include <aws/core/utils/xml/XmlSerializer.h>
+#include <mutex>
+#include <sstream>
+
+using namespace Aws;
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+using namespace Aws::Utils::Xml;
+using namespace Aws::Http;
+using namespace Aws::Client;
+using namespace Aws::Internal;
+
+static const char EC2_SECURITY_CREDENTIALS_RESOURCE[] = "/latest/meta-data/iam/security-credentials";
+static const char EC2_REGION_RESOURCE[] = "/latest/meta-data/placement/availability-zone";
+static const char EC2_IMDS_TOKEN_RESOURCE[] = "/latest/api/token";
+static const char EC2_IMDS_TOKEN_TTL_DEFAULT_VALUE[] = "21600";
+static const char EC2_IMDS_TOKEN_TTL_HEADER[] = "x-aws-ec2-metadata-token-ttl-seconds";
+static const char EC2_IMDS_TOKEN_HEADER[] = "x-aws-ec2-metadata-token";
+static const char RESOURCE_CLIENT_CONFIGURATION_ALLOCATION_TAG[] = "AWSHttpResourceClient";
+static const char EC2_METADATA_CLIENT_LOG_TAG[] = "EC2MetadataClient";
+static const char ECS_CREDENTIALS_CLIENT_LOG_TAG[] = "ECSCredentialsClient";
+
+namespace Aws
+{
+    namespace Client
+    {
+        Aws::String ComputeUserAgentString();
+    }
+
+    namespace Internal
+    {
+        static ClientConfiguration MakeDefaultHttpResourceClientConfiguration(const char *logtag)
+        {
+            ClientConfiguration res;
+
+            res.maxConnections = 2;
+            res.scheme = Scheme::HTTP;
+
+        #if defined(WIN32) && defined(BYPASS_DEFAULT_PROXY)
+            // For security reasons, we must bypass any proxy settings when fetching sensitive information, for example
+            // user credentials. On Windows, IXMLHttpRequest2 does not support bypassing proxy settings, therefore,
+            // we force using WinHTTP client. On POSIX systems, CURL is set to bypass proxy settings by default.
+            res.httpLibOverride = TransferLibType::WIN_HTTP_CLIENT;
+            AWS_LOGSTREAM_INFO(logtag, "Overriding the current HTTP client to WinHTTP to bypass proxy settings.");
+        #else
+            (void) logtag;  // To disable warning about unused variable
+        #endif
+            // Explicitly set the proxy settings to empty/zero to avoid relying on defaults that could potentially change
+            // in the future.
+            res.proxyHost = "";
+            res.proxyUserName = "";
+            res.proxyPassword = "";
+            res.proxyPort = 0;
+
+            // EC2MetadataService throttles by delaying the response so the service client should set a large read timeout.
+            // EC2MetadataService delay is in order of seconds so it only make sense to retry after a couple of seconds.
+            res.connectTimeoutMs = 1000;
+            res.requestTimeoutMs = 1000;
+            res.retryStrategy = Aws::MakeShared<DefaultRetryStrategy>(RESOURCE_CLIENT_CONFIGURATION_ALLOCATION_TAG, 1, 1000);
+
+            return res;
+        }
+
+        AWSHttpResourceClient::AWSHttpResourceClient(const Aws::Client::ClientConfiguration& clientConfiguration, const char* logtag)
+        : m_logtag(logtag), m_retryStrategy(clientConfiguration.retryStrategy), m_httpClient(nullptr)
+        {
+            AWS_LOGSTREAM_INFO(m_logtag.c_str(),
+                               "Creating AWSHttpResourceClient with max connections "
+                                << clientConfiguration.maxConnections
+                                << " and scheme "
+                                << SchemeMapper::ToString(clientConfiguration.scheme));
+
+            m_httpClient = CreateHttpClient(clientConfiguration);
+        }
+
+        AWSHttpResourceClient::AWSHttpResourceClient(const char* logtag)
+        : AWSHttpResourceClient(MakeDefaultHttpResourceClientConfiguration(logtag), logtag)
+        {
+        }
+
+        AWSHttpResourceClient::~AWSHttpResourceClient()
+        {
+        }
+
+        Aws::String AWSHttpResourceClient::GetResource(const char* endpoint, const char* resource, const char* authToken) const
+        {
+            return GetResourceWithAWSWebServiceResult(endpoint, resource, authToken).GetPayload();
+        }
+
+        AmazonWebServiceResult<Aws::String> AWSHttpResourceClient::GetResourceWithAWSWebServiceResult(const char *endpoint, const char *resource, const char *authToken) const
+        {
+            Aws::StringStream ss;
+            ss << endpoint;
+            if (resource)
+            {
+                ss << resource;
+            }
+            std::shared_ptr<HttpRequest> request(CreateHttpRequest(ss.str(), HttpMethod::HTTP_GET,
+                                                                   Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+
+            request->SetUserAgent(ComputeUserAgentString());
+
+            if (authToken)
+            {
+                request->SetHeaderValue(Aws::Http::AWS_AUTHORIZATION_HEADER, authToken);
+            }
+
+            return GetResourceWithAWSWebServiceResult(request);
+        }
+
+        AmazonWebServiceResult<Aws::String> AWSHttpResourceClient::GetResourceWithAWSWebServiceResult(const std::shared_ptr<HttpRequest> &httpRequest) const
+        {
+            AWS_LOGSTREAM_TRACE(m_logtag.c_str(), "Retrieving credentials from " << httpRequest->GetURIString());
+
+            for (long retries = 0;; retries++)
+            {
+                std::shared_ptr<HttpResponse> response(m_httpClient->MakeRequest(httpRequest));
+
+                if (response->GetResponseCode() == HttpResponseCode::OK)
+                {
+                    Aws::IStreamBufIterator eos;
+                    return {Aws::String(Aws::IStreamBufIterator(response->GetResponseBody()), eos), response->GetHeaders(), HttpResponseCode::OK};
+                }
+
+                const Aws::Client::AWSError<Aws::Client::CoreErrors> error = [this, &response]() {
+                    if (response->HasClientError() || response->GetResponseBody().tellp() < 1)
+                    {
+                        AWS_LOGSTREAM_ERROR(m_logtag.c_str(), "Http request to retrieve credentials failed");
+                        return AWSError<CoreErrors>(CoreErrors::NETWORK_CONNECTION, true); // Retryable
+                    }
+                    else if (m_errorMarshaller)
+                    {
+                        return m_errorMarshaller->Marshall(*response);
+                    }
+                    else
+                    {
+                        const auto responseCode = response->GetResponseCode();
+
+                        AWS_LOGSTREAM_ERROR(m_logtag.c_str(), "Http request to retrieve credentials failed with error code "
+                                                              << static_cast<int>(responseCode));
+                        return CoreErrorsMapper::GetErrorForHttpResponseCode(responseCode);
+                    }
+                }();
+
+                if (!m_retryStrategy->ShouldRetry(error, retries))
+                {
+                    AWS_LOGSTREAM_ERROR(m_logtag.c_str(), "Can not retrive resource from " << httpRequest->GetURIString());
+                    return {{}, response->GetHeaders(), error.GetResponseCode()};
+                }
+                auto sleepMillis = m_retryStrategy->CalculateDelayBeforeNextRetry(error, retries);
+                AWS_LOGSTREAM_WARN(m_logtag.c_str(), "Request failed, now waiting " << sleepMillis << " ms before attempting again.");
+                m_httpClient->RetryRequestSleep(std::chrono::milliseconds(sleepMillis));
+            }
+        }
+
+        EC2MetadataClient::EC2MetadataClient(const char* endpoint)
+            : AWSHttpResourceClient(EC2_METADATA_CLIENT_LOG_TAG), m_endpoint(endpoint), m_tokenRequired(true)
+        {
+        }
+
+        EC2MetadataClient::EC2MetadataClient(const Aws::Client::ClientConfiguration &clientConfiguration, const char *endpoint)
+            : AWSHttpResourceClient(clientConfiguration, EC2_METADATA_CLIENT_LOG_TAG), m_endpoint(endpoint), m_tokenRequired(true)
+        {
+        }
+
+        EC2MetadataClient::~EC2MetadataClient()
+        {
+
+        }
+
+        Aws::String EC2MetadataClient::GetResource(const char* resourcePath) const
+        {
+            return GetResource(m_endpoint.c_str(), resourcePath, nullptr/*authToken*/);
+        }
+
+        Aws::String EC2MetadataClient::GetDefaultCredentials() const
+        {
+            std::unique_lock<std::recursive_mutex> locker(m_tokenMutex);
+            if (m_tokenRequired)
+            {
+                return GetDefaultCredentialsSecurely();
+            }
+
+            AWS_LOGSTREAM_TRACE(m_logtag.c_str(), "Getting default credentials for ec2 instance");
+            auto result = GetResourceWithAWSWebServiceResult(m_endpoint.c_str(), EC2_SECURITY_CREDENTIALS_RESOURCE, nullptr);
+            Aws::String credentialsString = result.GetPayload();
+            auto httpResponseCode = result.GetResponseCode();
+
+            // Note, if service is insane, it might return 404 for our initial secure call,
+            // then when we fall back to insecure call, it might return 401 ask for secure call,
+            // Then, SDK might get into a recursive loop call situation between secure and insecure call.
+            if (httpResponseCode == Http::HttpResponseCode::UNAUTHORIZED)
+            {
+                m_tokenRequired = true;
+                return {};
+            }
+            locker.unlock();
+
+            Aws::String trimmedCredentialsString = StringUtils::Trim(credentialsString.c_str());
+            if (trimmedCredentialsString.empty()) return {};
+
+            Aws::Vector<Aws::String> securityCredentials = StringUtils::Split(trimmedCredentialsString, '\n');
+
+            AWS_LOGSTREAM_DEBUG(m_logtag.c_str(), "Calling EC2MetadataService resource, " << EC2_SECURITY_CREDENTIALS_RESOURCE
+                                                    << " returned credential string " << trimmedCredentialsString);
+
+            if (securityCredentials.size() == 0)
+            {
+                AWS_LOGSTREAM_WARN(m_logtag.c_str(), "Initial call to ec2Metadataservice to get credentials failed");
+                return {};
+            }
+
+            Aws::StringStream ss;
+            ss << EC2_SECURITY_CREDENTIALS_RESOURCE << "/" << securityCredentials[0];
+            AWS_LOGSTREAM_DEBUG(m_logtag.c_str(), "Calling EC2MetadataService resource " << ss.str());
+            return GetResource(ss.str().c_str());
+        }
+
+        Aws::String EC2MetadataClient::GetDefaultCredentialsSecurely() const
+        {
+            std::unique_lock<std::recursive_mutex> locker(m_tokenMutex);
+            if (!m_tokenRequired)
+            {
+                return GetDefaultCredentials();
+            }
+
+            Aws::StringStream ss;
+            ss << m_endpoint << EC2_IMDS_TOKEN_RESOURCE;
+            std::shared_ptr<HttpRequest> tokenRequest(CreateHttpRequest(ss.str(), HttpMethod::HTTP_PUT,
+                                                                        Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+            tokenRequest->SetHeaderValue(EC2_IMDS_TOKEN_TTL_HEADER, EC2_IMDS_TOKEN_TTL_DEFAULT_VALUE);
+            auto userAgentString = ComputeUserAgentString();
+            tokenRequest->SetUserAgent(userAgentString);
+            AWS_LOGSTREAM_TRACE(m_logtag.c_str(), "Calling EC2MetadataService to get token");
+            auto result = GetResourceWithAWSWebServiceResult(tokenRequest);
+            Aws::String tokenString = result.GetPayload();
+            Aws::String trimmedTokenString = StringUtils::Trim(tokenString.c_str());
+
+            if (result.GetResponseCode() == HttpResponseCode::BAD_REQUEST)
+            {
+                return {};
+            }
+            else if (result.GetResponseCode() != HttpResponseCode::OK || trimmedTokenString.empty())
+            {
+                m_tokenRequired = false;
+                AWS_LOGSTREAM_TRACE(m_logtag.c_str(), "Calling EC2MetadataService to get token failed, falling back to less secure way.");
+                return GetDefaultCredentials();
+            }
+            m_token = trimmedTokenString;
+            locker.unlock();
+            ss.str("");
+            ss << m_endpoint << EC2_SECURITY_CREDENTIALS_RESOURCE;
+            std::shared_ptr<HttpRequest> profileRequest(CreateHttpRequest(ss.str(), HttpMethod::HTTP_GET,
+                                                                          Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+            profileRequest->SetHeaderValue(EC2_IMDS_TOKEN_HEADER, trimmedTokenString);
+            profileRequest->SetUserAgent(userAgentString);
+            Aws::String profileString = GetResourceWithAWSWebServiceResult(profileRequest).GetPayload();
+
+            Aws::String trimmedProfileString = StringUtils::Trim(profileString.c_str());
+            Aws::Vector<Aws::String> securityCredentials = StringUtils::Split(trimmedProfileString, '\n');
+
+            AWS_LOGSTREAM_DEBUG(m_logtag.c_str(), "Calling EC2MetadataService resource, " << EC2_SECURITY_CREDENTIALS_RESOURCE
+                                                    << " with token returned profile string " << trimmedProfileString);
+            if (securityCredentials.size() == 0)
+            {
+                AWS_LOGSTREAM_WARN(m_logtag.c_str(), "Calling EC2Metadataservice to get profiles failed");
+                return {};
+            }
+
+            ss.str("");
+            ss << m_endpoint << EC2_SECURITY_CREDENTIALS_RESOURCE << "/" << securityCredentials[0];
+            std::shared_ptr<HttpRequest> credentialsRequest(CreateHttpRequest(ss.str(), HttpMethod::HTTP_GET,
+                                                                              Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+            credentialsRequest->SetHeaderValue(EC2_IMDS_TOKEN_HEADER, trimmedTokenString);
+            credentialsRequest->SetUserAgent(userAgentString);
+            AWS_LOGSTREAM_DEBUG(m_logtag.c_str(), "Calling EC2MetadataService resource " << ss.str() << " with token.");
+            return GetResourceWithAWSWebServiceResult(credentialsRequest).GetPayload();
+        }
+
+        Aws::String EC2MetadataClient::GetCurrentRegion() const
+        {
+            if (!m_region.empty())
+            {
+                return m_region;
+            }
+
+            AWS_LOGSTREAM_TRACE(m_logtag.c_str(), "Getting current region for ec2 instance");
+
+            Aws::StringStream ss;
+            ss << m_endpoint << EC2_REGION_RESOURCE;
+            std::shared_ptr<HttpRequest> regionRequest(CreateHttpRequest(ss.str(), HttpMethod::HTTP_GET,
+                                                                         Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+            {
+                std::lock_guard<std::recursive_mutex> locker(m_tokenMutex);
+                if (m_tokenRequired)
+                {
+                    regionRequest->SetHeaderValue(EC2_IMDS_TOKEN_HEADER, m_token);
+                }
+            }
+            regionRequest->SetUserAgent(ComputeUserAgentString());
+            Aws::String azString = GetResourceWithAWSWebServiceResult(regionRequest).GetPayload();
+
+            if (azString.empty())
+            {
+                AWS_LOGSTREAM_INFO(m_logtag.c_str() ,
+                        "Unable to pull region from instance metadata service ");
+                return {};
+            }
+
+            Aws::String trimmedAZString = StringUtils::Trim(azString.c_str());
+            AWS_LOGSTREAM_DEBUG(m_logtag.c_str(), "Calling EC2MetadataService resource "
+                    << EC2_REGION_RESOURCE << " , returned credential string " << trimmedAZString);
+
+            Aws::String region;
+            region.reserve(trimmedAZString.length());
+
+            bool digitFound = false;
+            for (auto character : trimmedAZString)
+            {
+                if(digitFound && !isdigit(character))
+                {
+                    break;
+                }
+                if (isdigit(character))
+                {
+                    digitFound = true;
+                }
+
+                region.append(1, character);
+            }
+
+            AWS_LOGSTREAM_INFO(m_logtag.c_str(), "Detected current region as " << region);
+            m_region = region;
+            return region;
+        }
+
+        #ifdef _MSC_VER
+            // VS2015 compiler's bug, warning s_ec2metadataClient: symbol will be dynamically initialized (implementation limitation)
+            AWS_SUPPRESS_WARNING(4592,
+                static std::shared_ptr<EC2MetadataClient> s_ec2metadataClient(nullptr);
+            )
+        #else
+            static std::shared_ptr<EC2MetadataClient> s_ec2metadataClient(nullptr);
+        #endif
+
+        void InitEC2MetadataClient()
+        {
+            if (s_ec2metadataClient)
+            {
+                return;
+            }
+            s_ec2metadataClient = Aws::MakeShared<EC2MetadataClient>(EC2_METADATA_CLIENT_LOG_TAG);
+        }
+
+        void CleanupEC2MetadataClient()
+        {
+            if (!s_ec2metadataClient)
+            {
+                return;
+            }
+            s_ec2metadataClient = nullptr;
+        }
+
+        std::shared_ptr<EC2MetadataClient> GetEC2MetadataClient()
+        {
+            return s_ec2metadataClient;
+        }
+
+
+        ECSCredentialsClient::ECSCredentialsClient(const char* resourcePath, const char* endpoint, const char* token)
+            : AWSHttpResourceClient(ECS_CREDENTIALS_CLIENT_LOG_TAG),
+            m_resourcePath(resourcePath), m_endpoint(endpoint), m_token(token)
+        {
+        }
+
+        ECSCredentialsClient::ECSCredentialsClient(const Aws::Client::ClientConfiguration& clientConfiguration, const char* resourcePath, const char* endpoint, const char* token)
+            : AWSHttpResourceClient(clientConfiguration, ECS_CREDENTIALS_CLIENT_LOG_TAG),
+            m_resourcePath(resourcePath), m_endpoint(endpoint), m_token(token)
+        {
+        }
+
+        static const char STS_RESOURCE_CLIENT_LOG_TAG[] = "STSResourceClient";
+        STSCredentialsClient::STSCredentialsClient(const Aws::Client::ClientConfiguration& clientConfiguration)
+            : AWSHttpResourceClient(clientConfiguration, STS_RESOURCE_CLIENT_LOG_TAG)
+        {
+            SetErrorMarshaller(Aws::MakeUnique<Aws::Client::XmlErrorMarshaller>(STS_RESOURCE_CLIENT_LOG_TAG));
+
+            Aws::StringStream ss;
+            if (clientConfiguration.scheme == Aws::Http::Scheme::HTTP)
+            {
+                ss << "http://";
+            }
+            else
+            {
+                ss << "https://";
+            }
+
+            static const int CN_NORTH_1_HASH = Aws::Utils::HashingUtils::HashString(Aws::Region::CN_NORTH_1);
+            static const int CN_NORTHWEST_1_HASH = Aws::Utils::HashingUtils::HashString(Aws::Region::CN_NORTHWEST_1);
+            auto hash = Aws::Utils::HashingUtils::HashString(clientConfiguration.region.c_str());
+
+            ss << "sts." << clientConfiguration.region << ".amazonaws.com";
+            if (hash == CN_NORTH_1_HASH || hash == CN_NORTHWEST_1_HASH)
+            {
+                ss << ".cn";
+            }
+            m_endpoint =  ss.str();
+
+            AWS_LOGSTREAM_INFO(STS_RESOURCE_CLIENT_LOG_TAG, "Creating STS ResourceClient with endpoint: " << m_endpoint);
+        }
+
+        STSCredentialsClient::STSAssumeRoleWithWebIdentityResult STSCredentialsClient::GetAssumeRoleWithWebIdentityCredentials(const STSAssumeRoleWithWebIdentityRequest& request)
+        {
+            //Calculate query string
+            Aws::StringStream ss;
+            ss << "Action=AssumeRoleWithWebIdentity"
+                << "&Version=2011-06-15"
+                << "&RoleSessionName=" << Aws::Utils::StringUtils::URLEncode(request.roleSessionName.c_str())
+                << "&RoleArn=" << Aws::Utils::StringUtils::URLEncode(request.roleArn.c_str())
+                << "&WebIdentityToken=" << Aws::Utils::StringUtils::URLEncode(request.webIdentityToken.c_str());
+
+            std::shared_ptr<HttpRequest> httpRequest(CreateHttpRequest(m_endpoint, HttpMethod::HTTP_POST,
+                                                                Aws::Utils::Stream::DefaultResponseStreamFactoryMethod));
+
+            httpRequest->SetUserAgent(ComputeUserAgentString());
+
+            std::shared_ptr<Aws::IOStream> body = Aws::MakeShared<Aws::StringStream>("STS_RESOURCE_CLIENT_LOG_TAG");
+            *body << ss.str();
+
+            httpRequest->AddContentBody(body);
+            body->seekg(0, body->end);
+            auto streamSize = body->tellg();
+            body->seekg(0, body->beg);
+            Aws::StringStream contentLength;
+            contentLength << streamSize;
+            httpRequest->SetContentLength(contentLength.str());
+            httpRequest->SetContentType("application/x-www-form-urlencoded");
+
+            Aws::String credentialsStr = GetResourceWithAWSWebServiceResult(httpRequest).GetPayload();
+
+            //Parse credentials
+            STSAssumeRoleWithWebIdentityResult result;
+            if (credentialsStr.empty())
+            {
+                AWS_LOGSTREAM_WARN(STS_RESOURCE_CLIENT_LOG_TAG, "Get an empty credential from sts");
+                return result;
+            }
+
+            const Utils::Xml::XmlDocument xmlDocument = XmlDocument::CreateFromXmlString(credentialsStr);
+            XmlNode rootNode = xmlDocument.GetRootElement();
+            XmlNode resultNode = rootNode;
+            if (!rootNode.IsNull() && (rootNode.GetName() != "AssumeRoleWithWebIdentityResult"))
+            {
+                resultNode = rootNode.FirstChild("AssumeRoleWithWebIdentityResult");
+            }
+
+            if (!resultNode.IsNull())
+            {
+                XmlNode credentialsNode = resultNode.FirstChild("Credentials");
+                if (!credentialsNode.IsNull())
+                {
+                    XmlNode accessKeyIdNode = credentialsNode.FirstChild("AccessKeyId");
+                    if (!accessKeyIdNode.IsNull())
+                    {
+                        result.creds.SetAWSAccessKeyId(accessKeyIdNode.GetText());
+                    }
+
+                    XmlNode secretAccessKeyNode = credentialsNode.FirstChild("SecretAccessKey");
+                    if (!secretAccessKeyNode.IsNull())
+                    {
+                        result.creds.SetAWSSecretKey(secretAccessKeyNode.GetText());
+                    }
+
+                    XmlNode sessionTokenNode = credentialsNode.FirstChild("SessionToken");
+                    if (!sessionTokenNode.IsNull())
+                    {
+                        result.creds.SetSessionToken(sessionTokenNode.GetText());
+                    }
+
+                    XmlNode expirationNode = credentialsNode.FirstChild("Expiration");
+                    if (!expirationNode.IsNull())
+                    {
+                        result.creds.SetExpiration(DateTime(StringUtils::Trim(expirationNode.GetText().c_str()).c_str(), DateFormat::ISO_8601));
+                    }
+                }
+            }
+            return result;
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/DefaultMonitoring.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/DefaultMonitoring.cpp
new file mode 100644
index 0000000000..9953004bc3
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/DefaultMonitoring.cpp
@@ -0,0 +1,340 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/monitoring/DefaultMonitoring.h>
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/utils/json/JsonSerializer.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/client/AWSClient.h>
+#include <aws/core/auth/AWSCredentialsProvider.h>
+#include <aws/core/platform/Environment.h>
+#include <aws/core/config/AWSProfileConfigLoader.h>
+#include <aws/core/utils/logging/LogMacros.h>
+using namespace Aws::Utils;
+
+namespace Aws
+{
+    namespace Monitoring
+    {
+        static const char DEFAULT_MONITORING_ALLOC_TAG[] = "DefaultMonitoringAllocTag";
+        static const int CLIENT_ID_LENGTH_LIMIT = 256;
+        static const int USER_AGENT_LENGTH_LIMIT = 256;
+        static const int ERROR_MESSAGE_LENGTH_LIMIT = 512;
+
+        const char DEFAULT_MONITORING_CLIENT_ID[] = ""; // default to empty;
+        const char DEFAULT_MONITORING_HOST[] = "127.0.0.1"; // default to loopback ip address instead of "localhost" based on design specification.
+        unsigned short DEFAULT_MONITORING_PORT = 31000; //default to 31000;
+        bool DEFAULT_MONITORING_ENABLE = false; //default to false;
+
+        const int DefaultMonitoring::DEFAULT_MONITORING_VERSION = 1;
+        const char DefaultMonitoring::DEFAULT_CSM_CONFIG_ENABLED[] = "csm_enabled";
+        const char DefaultMonitoring::DEFAULT_CSM_CONFIG_CLIENT_ID[] = "csm_client_id";
+        const char DefaultMonitoring::DEFAULT_CSM_CONFIG_HOST[] = "csm_host";
+        const char DefaultMonitoring::DEFAULT_CSM_CONFIG_PORT[] = "csm_port";
+        const char DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_ENABLED[] = "AWS_CSM_ENABLED";
+        const char DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_CLIENT_ID[] = "AWS_CSM_CLIENT_ID";
+        const char DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_HOST[] = "AWS_CSM_HOST";
+        const char DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_PORT[] = "AWS_CSM_PORT";
+
+
+        struct DefaultContext
+        {
+            Aws::Utils::DateTime apiCallStartTime;
+            Aws::Utils::DateTime attemptStartTime;
+            int retryCount = 0;
+            bool lastAttemptSucceeded = false;
+            bool lastErrorRetryable = false; //doesn't apply if last attempt succeeded.
+            const Aws::Client::HttpResponseOutcome* outcome = nullptr;
+        };
+
+        static inline void FillRequiredFieldsToJson(Json::JsonValue& json,
+            const Aws::String& type,
+            const Aws::String& service,
+            const Aws::String& api,
+            const Aws::String& clientId,
+            const DateTime& timestamp,
+            int version,
+            const Aws::String& userAgent)
+        {
+            json.WithString("Type", type)
+                .WithString("Service", service)
+                .WithString("Api", api)
+                .WithString("ClientId", clientId.substr(0, CLIENT_ID_LENGTH_LIMIT))
+                .WithInt64("Timestamp", timestamp.Millis())
+                .WithInteger("Version", version)
+                .WithString("UserAgent", userAgent.substr(0, USER_AGENT_LENGTH_LIMIT));
+        }
+
+        static inline void FillRequiredApiCallFieldsToJson(Json::JsonValue& json,
+            int attemptCount,
+            int64_t apiCallLatency,
+            bool maxRetriesExceeded)
+        {
+            json.WithInteger("AttemptCount", attemptCount)
+                .WithInt64("Latency", apiCallLatency)
+                .WithInteger("MaxRetriesExceeded", maxRetriesExceeded ? 1 : 0);
+        }
+
+        static inline void FillRequiredApiAttemptFieldsToJson(Json::JsonValue& json,
+            const Aws::String& domainName,
+            int64_t attemptLatency)
+        {
+            json.WithString("Fqdn", domainName)
+                .WithInt64("AttemptLatency", attemptLatency);
+        }
+
+        static inline void ExportResponseHeaderToJson(Json::JsonValue& json, const Aws::Http::HeaderValueCollection& headers,
+            const Aws::String& headerName, const Aws::String& targetName)
+        {
+            auto iter = headers.find(headerName);
+            if (iter != headers.end())
+            {
+                json.WithString(targetName, iter->second);
+            }
+        }
+
+        static inline void ExportHttpMetricsToJson(Json::JsonValue& json, const Aws::Monitoring::HttpClientMetricsCollection& httpMetrics, Aws::Monitoring::HttpClientMetricsType type)
+        {
+            auto iter = httpMetrics.find(GetHttpClientMetricNameByType(type));
+            if (iter != httpMetrics.end())
+            {
+                json.WithInt64(GetHttpClientMetricNameByType(type), iter->second);
+            }
+        }
+
+        static inline void FillOptionalApiCallFieldsToJson(Json::JsonValue& json,
+                const Aws::Http::HttpRequest* request,
+                const Aws::Client::HttpResponseOutcome& outcome)
+        {
+            if (!request->GetSigningRegion().empty())
+            {
+                json.WithString("Region", request->GetSigningRegion());
+            }
+            if (!outcome.IsSuccess())
+            {
+                if (outcome.GetError().GetExceptionName().empty()) // Not Aws Exception
+                {
+                    json.WithString("FinalSdkExceptionMessage", outcome.GetError().GetMessage().substr(0, ERROR_MESSAGE_LENGTH_LIMIT));
+                }
+                else // Aws Exception
+                {
+                    json.WithString("FinalAwsException", outcome.GetError().GetExceptionName())
+                        .WithString("FinalAwsExceptionMessage", outcome.GetError().GetMessage().substr(0, ERROR_MESSAGE_LENGTH_LIMIT));
+                }
+                json.WithInteger("FinalHttpStatusCode", static_cast<int>(outcome.GetError().GetResponseCode()));
+            }
+            else
+            {
+                json.WithInteger("FinalHttpStatusCode", static_cast<int>(outcome.GetResult()->GetResponseCode()));
+            }
+        }
+
+        static inline void FillOptionalApiAttemptFieldsToJson(Json::JsonValue& json,
+            const Aws::Http::HttpRequest* request,
+            const Aws::Client::HttpResponseOutcome& outcome,
+            const CoreMetricsCollection& metricsFromCore)
+        {
+            /**
+             *No matter request succeeded or not, these fields should be included as long as their requirements
+             *are met. We should be able to access response (so as to access original request) if the response has error.
+             */
+            if (request->HasAwsSessionToken() && !request->GetAwsSessionToken().empty())
+            {
+                json.WithString("SessionToken", request->GetAwsSessionToken());
+            }
+            if (!request->GetSigningRegion().empty())
+            {
+                json.WithString("Region", request->GetSigningRegion());
+            }
+            if (!request->GetSigningAccessKey().empty())
+            {
+                json.WithString("AccessKey", request->GetSigningAccessKey());
+            }
+
+            const auto& headers = outcome.IsSuccess() ? outcome.GetResult()->GetHeaders() : outcome.GetError().GetResponseHeaders();
+
+            ExportResponseHeaderToJson(json, headers, StringUtils::ToLower("x-amzn-RequestId"), "XAmznRequestId");
+            ExportResponseHeaderToJson(json, headers, StringUtils::ToLower("x-amz-request-id"), "XAmzRequestId");
+            ExportResponseHeaderToJson(json, headers, StringUtils::ToLower("x-amz-id-2"), "XAmzId2");
+
+            if (!outcome.IsSuccess())
+            {
+                if (outcome.GetError().GetExceptionName().empty()) // Not Aws Exception
+                {
+                    json.WithString("SdkExceptionMessage", outcome.GetError().GetMessage().substr(0, ERROR_MESSAGE_LENGTH_LIMIT));
+                }
+                else // Aws Exception
+                {
+                    json.WithString("AwsException", outcome.GetError().GetExceptionName())
+                        .WithString("AwsExceptionMessage", outcome.GetError().GetMessage().substr(0, ERROR_MESSAGE_LENGTH_LIMIT));
+                }
+                json.WithInteger("HttpStatusCode", static_cast<int>(outcome.GetError().GetResponseCode()));
+            }
+            else
+            {
+                json.WithInteger("HttpStatusCode", static_cast<int>(outcome.GetResult()->GetResponseCode()));
+            }
+
+            // Optional MetricsCollectedFromCore
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::AcquireConnectionLatency);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::ConnectionReused);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::ConnectLatency);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::DestinationIp);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::DnsLatency);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::RequestLatency);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::SslLatency);
+            ExportHttpMetricsToJson(json, metricsFromCore.httpClientMetrics, HttpClientMetricsType::TcpLatency);
+        }
+
+        DefaultMonitoring::DefaultMonitoring(const Aws::String& clientId, const Aws::String& host, unsigned short port):
+            m_udp(host.c_str(), port), m_clientId(clientId)
+        {
+        }
+
+        void* DefaultMonitoring::OnRequestStarted(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request) const
+        {
+            AWS_UNREFERENCED_PARAM(request);
+
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "OnRequestStart Service: " << serviceName << "Request: " << requestName);
+            auto context = Aws::New<DefaultContext>(DEFAULT_MONITORING_ALLOC_TAG);
+            context->apiCallStartTime = Aws::Utils::DateTime::Now();
+            context->attemptStartTime = context->apiCallStartTime;
+            context->retryCount = 0;
+            return context;
+        }
+
+
+        void DefaultMonitoring::OnRequestSucceeded(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request,
+                const Aws::Client::HttpResponseOutcome& outcome, const CoreMetricsCollection& metricsFromCore, void* context) const
+        {
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "OnRequestSucceeded Service: " << serviceName << "Request: " << requestName);
+            CollectAndSendAttemptData(serviceName, requestName, request, outcome, metricsFromCore, context);
+        }
+
+        void DefaultMonitoring::OnRequestFailed(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request,
+                const Aws::Client::HttpResponseOutcome& outcome, const CoreMetricsCollection& metricsFromCore, void* context) const
+        {
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "OnRequestFailed Service: " << serviceName << "Request: " << requestName);
+            CollectAndSendAttemptData(serviceName, requestName, request, outcome, metricsFromCore, context);
+        }
+
+        void DefaultMonitoring::OnRequestRetry(const Aws::String& serviceName, const Aws::String& requestName,
+            const std::shared_ptr<const Aws::Http::HttpRequest>& request, void* context) const
+        {
+            AWS_UNREFERENCED_PARAM(request);
+
+            DefaultContext* defaultContext = static_cast<DefaultContext*>(context);
+            defaultContext->retryCount++;
+            defaultContext->attemptStartTime = Aws::Utils::DateTime::Now();
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "OnRequestRetry Service: " << serviceName << "Request: " << requestName << " RetryCnt:" << defaultContext->retryCount);
+        }
+
+        void DefaultMonitoring::OnFinish(const Aws::String& serviceName, const Aws::String& requestName,
+            const std::shared_ptr<const Aws::Http::HttpRequest>& request, void* context) const
+        {
+            AWS_UNREFERENCED_PARAM(request);
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "OnRequestFinish Service: " << serviceName << "Request: " << requestName);
+
+            DefaultContext* defaultContext = static_cast<DefaultContext*>(context);
+            Aws::Utils::Json::JsonValue json;
+            FillRequiredFieldsToJson(json, "ApiCall", serviceName, requestName, m_clientId, defaultContext->apiCallStartTime, DEFAULT_MONITORING_VERSION, request->GetUserAgent());
+            FillRequiredApiCallFieldsToJson(json, defaultContext->retryCount + 1, (DateTime::Now() - defaultContext->apiCallStartTime).count(), (!defaultContext->lastAttemptSucceeded && defaultContext->lastErrorRetryable));
+            FillOptionalApiCallFieldsToJson(json, request.get(), *(defaultContext->outcome));
+            Aws::String compactData = json.View().WriteCompact();
+            m_udp.SendData(reinterpret_cast<const uint8_t*>(compactData.c_str()), static_cast<int>(compactData.size()));
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Send API Metrics: \n" << json.View().WriteReadable());
+            Aws::Delete(defaultContext);
+        }
+
+        void DefaultMonitoring::CollectAndSendAttemptData(const Aws::String& serviceName, const Aws::String& requestName,
+            const std::shared_ptr<const Aws::Http::HttpRequest>& request, const Aws::Client::HttpResponseOutcome& outcome,
+            const CoreMetricsCollection& metricsFromCore, void* context) const
+        {
+            DefaultContext* defaultContext = static_cast<DefaultContext*>(context);
+            defaultContext->outcome = &outcome;
+            defaultContext->lastAttemptSucceeded = outcome.IsSuccess() ? true : false;
+            defaultContext->lastErrorRetryable = (!outcome.IsSuccess() && outcome.GetError().ShouldRetry()) ? true : false;
+            Aws::Utils::Json::JsonValue json;
+            FillRequiredFieldsToJson(json, "ApiCallAttempt", serviceName, requestName, m_clientId, defaultContext->attemptStartTime, DEFAULT_MONITORING_VERSION, request->GetUserAgent());
+            FillRequiredApiAttemptFieldsToJson(json, request->GetUri().GetAuthority(), (DateTime::Now() - defaultContext->attemptStartTime).count());
+            FillOptionalApiAttemptFieldsToJson(json, request.get(), outcome, metricsFromCore);
+            Aws::String compactData = json.View().WriteCompact();
+            AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Send Attempt Metrics: \n" << json.View().WriteReadable());
+            m_udp.SendData(reinterpret_cast<const uint8_t*>(compactData.c_str()), static_cast<int>(compactData.size()));
+        }
+
+        Aws::UniquePtr<MonitoringInterface> DefaultMonitoringFactory::CreateMonitoringInstance() const
+        {
+            Aws::String clientId(DEFAULT_MONITORING_CLIENT_ID); // default to empty
+            Aws::String host(DEFAULT_MONITORING_HOST); // default to 127.0.0.1
+            unsigned short port = DEFAULT_MONITORING_PORT; // default to 31000
+            bool enable = DEFAULT_MONITORING_ENABLE; //default to false;
+
+            //check profile_config
+            Aws::String tmpEnable = Aws::Config::GetCachedConfigValue(DefaultMonitoring::DEFAULT_CSM_CONFIG_ENABLED);
+            Aws::String tmpClientId = Aws::Config::GetCachedConfigValue(DefaultMonitoring::DEFAULT_CSM_CONFIG_CLIENT_ID);
+            Aws::String tmpHost = Aws::Config::GetCachedConfigValue(DefaultMonitoring::DEFAULT_CSM_CONFIG_HOST);
+            Aws::String tmpPort = Aws::Config::GetCachedConfigValue(DefaultMonitoring::DEFAULT_CSM_CONFIG_PORT);
+
+            if (!tmpEnable.empty())
+            {
+                enable = StringUtils::CaselessCompare(tmpEnable.c_str(), "true") ? true : false;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved csm_enabled from profile_config to be " << enable);
+            }
+            if (!tmpClientId.empty())
+            {
+                clientId = tmpClientId;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved csm_client_id from profile_config to be " << clientId);
+            }
+
+            if (!tmpHost.empty())
+            {
+                host = tmpHost;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved csm_host from profile_config to be " << host);
+            }
+
+            if (!tmpPort.empty())
+            {
+                port = static_cast<short>(StringUtils::ConvertToInt32(tmpPort.c_str()));
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved csm_port from profile_config to be " << port);
+            }
+
+            // check environment variables
+            tmpEnable = Aws::Environment::GetEnv(DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_ENABLED);
+            tmpClientId = Aws::Environment::GetEnv(DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_CLIENT_ID);
+            tmpHost = Aws::Environment::GetEnv(DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_HOST);
+            tmpPort = Aws::Environment::GetEnv(DefaultMonitoring::DEFAULT_CSM_ENVIRONMENT_VAR_PORT);
+            if (!tmpEnable.empty())
+            {
+                enable = StringUtils::CaselessCompare(tmpEnable.c_str(), "true") ? true : false;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved AWS_CSM_ENABLED from Environment variable to be " << enable);
+            }
+            if (!tmpClientId.empty())
+            {
+                clientId = tmpClientId;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved AWS_CSM_CLIENT_ID from Environment variable to be " << clientId);
+
+            }
+            if (!tmpHost.empty())
+            {
+                host = tmpHost;
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved AWS_CSM_HOST from Environment variable to be " << host);
+            }
+            if (!tmpPort.empty())
+            {
+                port = static_cast<unsigned short>(StringUtils::ConvertToInt32(tmpPort.c_str()));
+                AWS_LOGSTREAM_DEBUG(DEFAULT_MONITORING_ALLOC_TAG, "Resolved AWS_CSM_PORT from Environment variable to be " << port);
+            }
+
+            if (!enable)
+            {
+                return nullptr;
+            }
+            return Aws::MakeUnique<DefaultMonitoring>(DEFAULT_MONITORING_ALLOC_TAG, clientId, host, port);
+        }
+
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/HttpClientMetrics.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/HttpClientMetrics.cpp
new file mode 100644
index 0000000000..f3ef582867
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/HttpClientMetrics.cpp
@@ -0,0 +1,71 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/monitoring/HttpClientMetrics.h>
+
+namespace Aws
+{
+    namespace Monitoring
+    {
+        static const char HTTP_CLIENT_METRICS_DESTINATION_IP[] = "DestinationIp";
+        static const char HTTP_CLIENT_METRICS_ACQUIRE_CONNECTION_LATENCY[] = "AcquireConnectionLatency";
+        static const char HTTP_CLIENT_METRICS_CONNECTION_REUSED[] = "ConnectionReused";
+        static const char HTTP_CLIENT_METRICS_CONNECTION_LATENCY[] = "ConnectLatency";
+        static const char HTTP_CLIENT_METRICS_REQUEST_LATENCY[] = "RequestLatency";
+        static const char HTTP_CLIENT_METRICS_DNS_LATENCY[] = "DnsLatency";
+        static const char HTTP_CLIENT_METRICS_TCP_LATENCY[] = "TcpLatency";
+        static const char HTTP_CLIENT_METRICS_SSL_LATENCY[] = "SslLatency";
+        static const char HTTP_CLIENT_METRICS_UNKNOWN[] = "Unknown";
+
+        using namespace Aws::Utils;
+        HttpClientMetricsType GetHttpClientMetricTypeByName(const Aws::String& name)
+        {
+            static std::map<int, HttpClientMetricsType> metricsNameHashToType =
+            {
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_DESTINATION_IP), HttpClientMetricsType::DestinationIp),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_ACQUIRE_CONNECTION_LATENCY), HttpClientMetricsType::AcquireConnectionLatency),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_CONNECTION_REUSED), HttpClientMetricsType::ConnectionReused),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_CONNECTION_LATENCY), HttpClientMetricsType::ConnectLatency),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_REQUEST_LATENCY), HttpClientMetricsType::RequestLatency),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_DNS_LATENCY), HttpClientMetricsType::DnsLatency),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_TCP_LATENCY), HttpClientMetricsType::TcpLatency),
+                std::pair<int, HttpClientMetricsType>(HashingUtils::HashString(HTTP_CLIENT_METRICS_SSL_LATENCY), HttpClientMetricsType::SslLatency)
+            };
+
+            int nameHash = HashingUtils::HashString(name.c_str());
+            auto it = metricsNameHashToType.find(nameHash);
+            if (it == metricsNameHashToType.end())
+            {
+                return HttpClientMetricsType::Unknown;
+            }
+            return it->second;
+        }
+
+        Aws::String GetHttpClientMetricNameByType(HttpClientMetricsType type)
+        {
+            static std::map<int, std::string> metricsTypeToName =
+            {
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::DestinationIp), HTTP_CLIENT_METRICS_DESTINATION_IP),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::AcquireConnectionLatency), HTTP_CLIENT_METRICS_ACQUIRE_CONNECTION_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::ConnectionReused), HTTP_CLIENT_METRICS_CONNECTION_REUSED),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::ConnectLatency), HTTP_CLIENT_METRICS_CONNECTION_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::RequestLatency), HTTP_CLIENT_METRICS_REQUEST_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::DnsLatency), HTTP_CLIENT_METRICS_DNS_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::TcpLatency), HTTP_CLIENT_METRICS_TCP_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::SslLatency), HTTP_CLIENT_METRICS_SSL_LATENCY),
+                std::pair<int, std::string>(static_cast<int>(HttpClientMetricsType::Unknown), HTTP_CLIENT_METRICS_UNKNOWN)
+            };
+
+            auto it = metricsTypeToName.find(static_cast<int>(type));
+            if (it == metricsTypeToName.end())
+            {
+                return HTTP_CLIENT_METRICS_UNKNOWN;
+            }
+            return Aws::String(it->second.c_str());
+        }
+
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/MonitoringManager.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/MonitoringManager.cpp
new file mode 100644
index 0000000000..7a8d3adb41
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/monitoring/MonitoringManager.cpp
@@ -0,0 +1,129 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/monitoring/MonitoringInterface.h>
+#include <aws/core/monitoring/MonitoringFactory.h>
+#include <aws/core/monitoring/MonitoringManager.h>
+#include <aws/core/monitoring/DefaultMonitoring.h>
+#include <aws/core/Core_EXPORTS.h>
+
+#ifdef _MSC_VER
+#pragma warning(disable : 4592)
+#endif
+
+namespace Aws
+{
+    namespace Monitoring
+    {
+        typedef Aws::Vector<Aws::UniquePtr<MonitoringInterface>> Monitors;
+
+        const char MonitoringTag[] = "MonitoringAllocTag";
+
+        /**
+         * Global factory to create global metrics instance.
+         */
+        static Aws::UniquePtr<Monitors> s_monitors;
+
+        Aws::Vector<void*> OnRequestStarted(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request)
+        {
+            assert(s_monitors);
+            Aws::Vector<void*> contexts;
+            contexts.reserve(s_monitors->size());
+            for (const auto& interface: *s_monitors)
+            {
+                contexts.emplace_back(interface->OnRequestStarted(serviceName, requestName, request));
+            }
+            return contexts;
+        }
+
+        void OnRequestSucceeded(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request,
+                const Aws::Client::HttpResponseOutcome& outcome, const CoreMetricsCollection& metricsFromCore, const Aws::Vector<void*>& contexts)
+        {
+            assert(s_monitors);
+            assert(contexts.size() == s_monitors->size());
+            size_t index = 0;
+            for (const auto& interface: *s_monitors)
+            {
+                interface->OnRequestSucceeded(serviceName, requestName, request, outcome, metricsFromCore, contexts[index++]);
+            }
+        }
+
+        void OnRequestFailed(const Aws::String& serviceName, const Aws::String& requestName, const std::shared_ptr<const Aws::Http::HttpRequest>& request,
+                const Aws::Client::HttpResponseOutcome& outcome, const CoreMetricsCollection& metricsFromCore, const Aws::Vector<void*>& contexts)
+        {
+            assert(s_monitors);
+            assert(contexts.size() == s_monitors->size());
+            size_t index = 0;
+            for (const auto& interface: *s_monitors)
+            {
+                interface->OnRequestFailed(serviceName, requestName, request, outcome, metricsFromCore, contexts[index++]);
+            }
+        }
+
+        void OnRequestRetry(const Aws::String& serviceName, const Aws::String& requestName,
+                const std::shared_ptr<const Aws::Http::HttpRequest>& request, const Aws::Vector<void*>& contexts)
+        {
+            assert(s_monitors);
+            assert(contexts.size() == s_monitors->size());
+            size_t index = 0;
+            for (const auto& interface: *s_monitors)
+            {
+                interface->OnRequestRetry(serviceName, requestName, request, contexts[index++]);
+            }
+        }
+
+        void OnFinish(const Aws::String& serviceName, const Aws::String& requestName,
+                const std::shared_ptr<const Aws::Http::HttpRequest>& request, const Aws::Vector<void*>& contexts)
+        {
+            assert(s_monitors);
+            assert(contexts.size() == s_monitors->size());
+            size_t index = 0;
+            for (const auto& interface: *s_monitors)
+            {
+                interface->OnFinish(serviceName, requestName, request, contexts[index++]);
+            }
+        }
+
+        void InitMonitoring(const std::vector<MonitoringFactoryCreateFunction>& monitoringFactoryCreateFunctions)
+        {
+            if (s_monitors)
+            {
+                return;
+            }
+            s_monitors = Aws::MakeUnique<Monitors>(MonitoringTag);
+            for (const auto& function: monitoringFactoryCreateFunctions)
+            {
+                auto factory = function();
+                if (factory)
+                {
+                    auto instance = factory->CreateMonitoringInstance();
+                    if (instance)
+                    {
+                        s_monitors->emplace_back(std::move(instance));
+                    }
+                }
+            }
+
+            auto defaultMonitoringFactory = Aws::MakeShared<DefaultMonitoringFactory>(MonitoringTag);
+            auto instance = defaultMonitoringFactory->CreateMonitoringInstance();
+            if (instance)
+            {
+                s_monitors->emplace_back(std::move(instance));
+            }
+        }
+
+        void CleanupMonitoring()
+        {
+            if (!s_monitors)
+            {
+                return;
+            }
+
+            s_monitors = nullptr;
+        }
+    } // namespace Monitoring
+
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/Net.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/Net.cpp
new file mode 100644
index 0000000000..244df21945
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/Net.cpp
@@ -0,0 +1,28 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/net/Net.h>
+
+namespace Aws
+{
+    namespace Net
+    {
+        // For Posix system, currently we don't need to do anything for network stack initialization.
+        // But we need to do initialization for WinSock on Windows and call them in Aws.cpp. So these functions
+        // also exist for Posix systems.
+        bool IsNetworkInitiated() 
+        {
+            return true;
+        }
+
+        void InitNetwork()
+        {
+        }
+
+        void CleanupNetwork()
+        {
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/SimpleUDP.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/SimpleUDP.cpp
new file mode 100644
index 0000000000..d9e0c385fd
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/net/linux-shared/SimpleUDP.cpp
@@ -0,0 +1,285 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <cassert>
+#include <string.h>
+#include <aws/core/net/SimpleUDP.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+namespace Aws
+{
+    namespace Net
+    {
+        static const char ALLOC_TAG[] = "SimpleUDP";
+        static const char IPV4_LOOP_BACK_ADDRESS[] = "127.0.0.1";
+        static const char IPV6_LOOP_BACK_ADDRESS[] = "::1";
+
+        static inline bool IsValidIPAddress(const char* ip, int addressFamily/*AF_INET or AF_INET6*/)
+        {
+            char buffer[128];
+            return inet_pton(addressFamily, ip, (void*)buffer) == 1 ?true :false;
+        }
+
+        static bool GetASockAddrFromHostName(const char* hostName, void* sockAddrBuffer, size_t& addrLength, int& addressFamily)
+        {
+            struct addrinfo hints, *res;
+            
+            memset(&hints, 0, sizeof(hints));
+
+            hints.ai_family = PF_UNSPEC;
+            hints.ai_socktype = SOCK_DGRAM;
+            if (getaddrinfo(hostName, nullptr, &hints, &res))
+            {
+                return false;
+            }
+
+            memcpy(sockAddrBuffer, res->ai_addr, res->ai_addrlen);
+            addrLength = res->ai_addrlen;
+            addressFamily = res->ai_family;
+            freeaddrinfo(res);
+            return true;
+        }
+
+        static sockaddr_in BuildAddrInfoIPV4(const char* hostIP, short port)
+        {
+#if (__GNUC__ == 4) && !defined(__clang__)
+    AWS_SUPPRESS_WARNING("-Wmissing-field-initializers",
+            sockaddr_in addrinfo {};
+    );
+#else
+            sockaddr_in addrinfo {};
+#endif
+            addrinfo.sin_family = AF_INET;
+            addrinfo.sin_port = htons(port);
+            inet_pton(AF_INET, hostIP, &addrinfo.sin_addr);
+            return addrinfo;
+        }
+
+        static sockaddr_in6 BuildAddrInfoIPV6(const char* hostIP, short port)
+        {
+#if (__GNUC__ == 4) && !defined(__clang__)
+    AWS_SUPPRESS_WARNING("-Wmissing-field-initializers",
+            sockaddr_in6 addrinfo {};
+    );
+#else
+            sockaddr_in6 addrinfo {};
+#endif
+            addrinfo.sin6_family = AF_INET6;
+            addrinfo.sin6_port = htons(port);
+            inet_pton(AF_INET6, hostIP, &addrinfo.sin6_addr);
+            return addrinfo;
+        }
+
+        SimpleUDP::SimpleUDP(int addressFamily, size_t sendBufSize, size_t receiveBufSize, bool nonBlocking):
+            m_addressFamily(addressFamily), m_connected(false), m_socket(-1), m_port(0)
+        {
+            CreateSocket(addressFamily, sendBufSize, receiveBufSize, nonBlocking);
+        }
+
+        SimpleUDP::SimpleUDP(bool IPV4, size_t sendBufSize, size_t receiveBufSize, bool nonBlocking) :
+            m_addressFamily(IPV4 ? AF_INET : AF_INET6), m_connected(false), m_socket(-1), m_port(0)
+        {
+            CreateSocket(m_addressFamily, sendBufSize, receiveBufSize, nonBlocking);
+        }
+
+        SimpleUDP::SimpleUDP(const char* host, unsigned short port, size_t sendBufSize, size_t receiveBufSize, bool nonBlocking) :
+            m_addressFamily(AF_INET), m_connected(false), m_socket(-1), m_port(port)
+        {
+            if (IsValidIPAddress(host, AF_INET))
+            {
+                m_addressFamily = AF_INET;
+                m_hostIP = Aws::String(host);
+            }
+            else if (IsValidIPAddress(host, AF_INET6))
+            {
+                m_addressFamily = AF_INET6;
+                m_hostIP = Aws::String(host);
+            }
+            else 
+            {
+                char sockAddrBuffer[100];
+                char hostBuffer[100];
+                size_t addrLength = 0;
+                if (GetASockAddrFromHostName(host, (void*)sockAddrBuffer, addrLength, m_addressFamily))
+                {
+                    if (m_addressFamily == AF_INET)
+                    {
+                        struct sockaddr_in* sockaddr = reinterpret_cast<struct sockaddr_in*>(sockAddrBuffer);
+                        inet_ntop(m_addressFamily, &(sockaddr->sin_addr), hostBuffer, sizeof(hostBuffer));
+                    }
+                    else
+                    {
+                        struct sockaddr_in6* sockaddr = reinterpret_cast<struct sockaddr_in6*>(sockAddrBuffer);
+                        inet_ntop(m_addressFamily, &(sockaddr->sin6_addr), hostBuffer, sizeof(hostBuffer));
+                    }
+                    m_hostIP = Aws::String(hostBuffer);
+                }
+                else
+                {
+                    AWS_LOGSTREAM_ERROR(ALLOC_TAG, "Can't retrieve a valid ip address based on provided host: " << host);
+                }
+            }
+            CreateSocket(m_addressFamily, sendBufSize, receiveBufSize, nonBlocking);
+        }
+
+        SimpleUDP::~SimpleUDP()
+        {
+            close(GetUnderlyingSocket());
+        }
+
+        void SimpleUDP::CreateSocket(int addressFamily, size_t sendBufSize, size_t receiveBufSize, bool nonBlocking)
+        {
+            int sock = socket(addressFamily, SOCK_DGRAM, IPPROTO_UDP);
+            assert(sock != -1);
+
+            // Try to set sock to nonblocking mode.
+            if (nonBlocking)
+            {
+                int flags = fcntl(sock, F_GETFL, 0);
+                if (flags != -1)
+                {
+                    flags |= O_NONBLOCK;
+                    fcntl(sock, F_SETFL, flags);
+                }
+            }
+
+            // if sendBufSize is not zero, try to set send buffer size
+            if (sendBufSize)
+            {
+                int ret = setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &sendBufSize, sizeof(sendBufSize));
+                if (ret)
+                {
+                    AWS_LOGSTREAM_WARN(ALLOC_TAG, "Failed to set UDP send buffer size to " << sendBufSize << " for socket " << sock << " error message: " << strerror(errno));
+                }
+                assert(ret == 0);
+            }
+
+            // if receiveBufSize is not zero, try to set receive buffer size
+            if (receiveBufSize)
+            {
+                int ret = setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &receiveBufSize, sizeof(receiveBufSize));
+                if (ret)
+                {
+                    AWS_LOGSTREAM_WARN(ALLOC_TAG, "Failed to set UDP receive buffer size to " << receiveBufSize << " for socket " << sock << " error message: " << strerror(errno));
+                }
+                assert(ret == 0);
+            }
+
+            SetUnderlyingSocket(sock);
+        }
+
+        int SimpleUDP::Connect(const sockaddr* address, size_t addressLength)
+        {
+            int ret = connect(GetUnderlyingSocket(), address, static_cast<socklen_t>(addressLength));
+            m_connected = ret ? false : true;
+            return ret;
+        }
+
+        int SimpleUDP::ConnectToHost(const char* hostIP, unsigned short port) const
+        {
+            int ret;
+            if (m_addressFamily == AF_INET6)
+            {
+                sockaddr_in6 addrinfo = BuildAddrInfoIPV6(hostIP, port);
+                ret = connect(GetUnderlyingSocket(), reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in6));
+            }
+            else
+            {
+                sockaddr_in addrinfo = BuildAddrInfoIPV4(hostIP, port);
+                ret = connect(GetUnderlyingSocket(), reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in));
+            }
+            m_connected = ret ? false : true;
+            return ret;
+        }
+
+        int SimpleUDP::ConnectToLocalHost(unsigned short port) const
+        {
+            if (m_addressFamily == AF_INET6)
+            {
+                return ConnectToHost(IPV6_LOOP_BACK_ADDRESS, port);
+            }
+            else
+            {
+                return ConnectToHost(IPV4_LOOP_BACK_ADDRESS, port);
+            }
+        }
+
+        int SimpleUDP::Bind(const sockaddr* address, size_t addressLength) const
+        {
+            return bind(GetUnderlyingSocket(), address, static_cast<socklen_t>(addressLength));
+        }
+
+        int SimpleUDP::BindToLocalHost(unsigned short port) const
+        {
+            if (m_addressFamily == AF_INET6)
+            {
+                sockaddr_in6 addrinfo = BuildAddrInfoIPV6(IPV6_LOOP_BACK_ADDRESS, port);
+                return bind(GetUnderlyingSocket(), reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in6));
+            }
+            else
+            {
+                sockaddr_in addrinfo = BuildAddrInfoIPV4(IPV4_LOOP_BACK_ADDRESS, port);
+                return bind(GetUnderlyingSocket(), reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in));
+            }
+        }
+
+        int SimpleUDP::SendData(const uint8_t* data, size_t dataLen) const
+        {
+            if (!m_connected)
+            {
+                ConnectToHost(m_hostIP.c_str(), m_port);
+            }
+            return send(GetUnderlyingSocket(), data, dataLen, 0);
+        }
+
+        int SimpleUDP::SendDataTo(const sockaddr* address, size_t addressLength, const uint8_t* data, size_t dataLen) const
+        {
+            if (m_connected)
+            {
+                return send(GetUnderlyingSocket(), data, dataLen, 0);
+            }
+            else
+            {
+                return sendto(GetUnderlyingSocket(), data, dataLen, 0, address, static_cast<socklen_t>(addressLength));
+            }
+        }
+
+        int SimpleUDP::SendDataToLocalHost(const uint8_t* data, size_t dataLen, unsigned short port) const
+        {
+            if (m_connected)
+            {
+                return send(GetUnderlyingSocket(), data, dataLen, 0);
+            }
+            else if (m_addressFamily == AF_INET6)
+            {
+                sockaddr_in6 addrinfo = BuildAddrInfoIPV6(IPV6_LOOP_BACK_ADDRESS, port);
+                return sendto(GetUnderlyingSocket(), data, dataLen, 0, reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in6));
+            }
+            else
+            {
+                sockaddr_in addrinfo = BuildAddrInfoIPV4(IPV4_LOOP_BACK_ADDRESS, port);
+                return sendto(GetUnderlyingSocket(), data, dataLen, 0, reinterpret_cast<sockaddr*>(&addrinfo), sizeof(sockaddr_in));
+            }
+        }
+
+        int SimpleUDP::ReceiveData(uint8_t* buffer, size_t bufferLen) const
+        {
+            return recv(GetUnderlyingSocket(), buffer, static_cast<int>(bufferLen), 0);
+        }
+
+
+        int SimpleUDP::ReceiveDataFrom(sockaddr* address, size_t* addressLength, uint8_t* buffer, size_t bufferLen) const
+        {
+            return recvfrom(GetUnderlyingSocket(), buffer, static_cast<int>(bufferLen), 0, address, reinterpret_cast<socklen_t*>(addressLength));
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Environment.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Environment.cpp
new file mode 100644
index 0000000000..ee627340bb
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Environment.cpp
@@ -0,0 +1,23 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/platform/Environment.h>
+
+//#include <aws/core/utils/memory/stl/AWSStringStream.h>
+//#include <sys/utsname.h>
+
+namespace Aws
+{
+namespace Environment
+{
+
+Aws::String GetEnv(const char* variableName)
+{
+    auto variableValue = std::getenv(variableName);
+    return Aws::String( variableValue ? variableValue : "" );
+}
+
+} // namespace Environment
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/FileSystem.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/FileSystem.cpp
new file mode 100644
index 0000000000..c1ad818911
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/FileSystem.cpp
@@ -0,0 +1,292 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/platform/FileSystem.h>
+
+#include <aws/core/platform/Environment.h>
+#include <aws/core/platform/Platform.h>
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/UUID.h>
+
+#include <unistd.h>
+#include <pwd.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+#include <climits>
+
+#include <cassert>
+#ifdef __APPLE__
+#include <mach-o/dyld.h>
+#endif
+namespace Aws
+{
+namespace FileSystem
+{
+
+static const char* FILE_SYSTEM_UTILS_LOG_TAG = "FileSystemUtils";
+
+    class PosixDirectory : public Directory
+    {
+    public:
+        PosixDirectory(const Aws::String& path, const Aws::String& relativePath) : Directory(path, relativePath), m_dir(nullptr)
+        {
+            m_dir = opendir(m_directoryEntry.path.c_str());
+            AWS_LOGSTREAM_TRACE(FILE_SYSTEM_UTILS_LOG_TAG, "Entering directory " << m_directoryEntry.path);
+
+            if(m_dir)
+            {
+                AWS_LOGSTREAM_TRACE(FILE_SYSTEM_UTILS_LOG_TAG, "Successfully opened directory " << m_directoryEntry.path);
+                m_directoryEntry.fileType = FileType::Directory;
+            }
+            else
+            {
+                AWS_LOGSTREAM_ERROR(FILE_SYSTEM_UTILS_LOG_TAG, "Could not load directory " << m_directoryEntry.path << " with error code " << errno);
+            }
+        }
+
+        ~PosixDirectory()
+        {
+            if (m_dir)
+            {
+                closedir(m_dir);
+            }
+        }
+
+        operator bool() const override { return m_directoryEntry.operator bool() && m_dir != nullptr; }
+
+        DirectoryEntry Next() override
+        {
+            assert(m_dir);
+            DirectoryEntry entry;
+
+            dirent* dirEntry;
+            bool invalidEntry(true);
+
+            while(invalidEntry)
+            {
+                if ((dirEntry = readdir(m_dir)))
+                {
+                    Aws::String entryName = dirEntry->d_name;
+                    if(entryName != ".." && entryName != ".")
+                    {
+                        entry = ParseFileInfo(dirEntry, true);
+                        invalidEntry = false;
+                    }
+                    else
+                    {
+                        AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "skipping . or ..");
+                    }
+                }
+                else
+                {
+                    break;
+                }
+            }
+
+            return entry;
+        }
+
+    private:
+        DirectoryEntry ParseFileInfo(dirent* dirEnt, bool computePath)
+        {
+            DirectoryEntry entry;
+
+            if(computePath)
+            {
+                Aws::StringStream ss;
+                ss << m_directoryEntry.path << PATH_DELIM << dirEnt->d_name;
+                entry.path = ss.str();
+
+                ss.str("");
+                if(m_directoryEntry.relativePath.empty())
+                {
+                    ss << dirEnt->d_name;
+                }
+                else
+                {
+                    ss << m_directoryEntry.relativePath << PATH_DELIM << dirEnt->d_name;
+                }
+                entry.relativePath = ss.str();
+            }
+            else
+            {
+                entry.path = m_directoryEntry.path;
+                entry.relativePath = m_directoryEntry.relativePath;
+            }
+
+            AWS_LOGSTREAM_TRACE(FILE_SYSTEM_UTILS_LOG_TAG, "Calling stat on path " << entry.path);
+
+            struct stat dirInfo;
+            if(!lstat(entry.path.c_str(), &dirInfo))
+            {
+               if(S_ISDIR(dirInfo.st_mode))
+               {
+                   AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "type directory detected");
+                   entry.fileType = FileType::Directory;
+               }
+               else if(S_ISLNK(dirInfo.st_mode))
+               {
+                   AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "type symlink detected");
+                   entry.fileType = FileType::Symlink;
+               }
+               else if(S_ISREG(dirInfo.st_mode))
+               {
+                   AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "type file detected");
+                   entry.fileType = FileType::File;
+               }
+
+               entry.fileSize = static_cast<int64_t>(dirInfo.st_size);
+               AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "file size detected as " << entry.fileSize);
+            }
+            else
+            {
+                AWS_LOGSTREAM_ERROR(FILE_SYSTEM_UTILS_LOG_TAG, "Failed to stat file path " << entry.path << " with error code " << errno);
+            }
+
+            return entry;
+        }
+
+        DIR* m_dir;
+    };
+
+Aws::String GetHomeDirectory()
+{
+    static const char* HOME_DIR_ENV_VAR = "HOME";
+
+    AWS_LOGSTREAM_TRACE(FILE_SYSTEM_UTILS_LOG_TAG, "Checking " << HOME_DIR_ENV_VAR << " for the home directory.");
+
+    Aws::String homeDir = Aws::Environment::GetEnv(HOME_DIR_ENV_VAR);
+
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Environment value for variable " << HOME_DIR_ENV_VAR << " is " << homeDir);
+
+    if(homeDir.empty())
+    {
+        AWS_LOGSTREAM_WARN(FILE_SYSTEM_UTILS_LOG_TAG, "Home dir not stored in environment, trying to fetch manually from the OS.");
+
+        passwd pw;
+        passwd *p_pw = nullptr;
+        char pw_buffer[4096];
+        getpwuid_r(getuid(), &pw, pw_buffer, sizeof(pw_buffer), &p_pw);
+        if(p_pw && p_pw->pw_dir)
+        {
+            homeDir = p_pw->pw_dir;
+        }
+
+        AWS_LOGSTREAM_INFO(FILE_SYSTEM_UTILS_LOG_TAG, "Pulled " << homeDir << " as home directory from the OS.");
+    }
+
+    Aws::String retVal = homeDir.size() > 0 ? Aws::Utils::StringUtils::Trim(homeDir.c_str()) : "";
+    if(!retVal.empty())
+    {
+        if(retVal.at(retVal.length() - 1) != PATH_DELIM)
+        {
+            AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Home directory is missing the final " << PATH_DELIM << " appending one to normalize");
+            retVal += PATH_DELIM;
+        }
+    }
+
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Final Home Directory is " << retVal);
+
+    return retVal;
+}
+
+bool CreateDirectoryIfNotExists(const char* path, bool createParentDirs)
+{
+    Aws::String directoryName = path;
+    AWS_LOGSTREAM_INFO(FILE_SYSTEM_UTILS_LOG_TAG, "Creating directory " << directoryName);
+
+    for (size_t i = (createParentDirs ? 0 : directoryName.size() - 1); i < directoryName.size(); i++)
+    {
+        // Create the parent directory if we find a delimiter and the delimiter is not the first char, or if this is the target directory.
+        if (i != 0 && (directoryName[i] == FileSystem::PATH_DELIM || i == directoryName.size() - 1))
+        {
+            if (directoryName[i] == FileSystem::PATH_DELIM)
+            {
+                directoryName[i] = '\0';
+            }
+            int errorCode = mkdir(directoryName.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
+            if (errorCode != 0 && errno != EEXIST)
+            {
+                AWS_LOGSTREAM_ERROR(FILE_SYSTEM_UTILS_LOG_TAG, "Creation of directory " << directoryName.c_str() << " returned code: " << errno);
+                return false;
+            }
+            AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Creation of directory " << directoryName.c_str() << " returned code: " << errno);
+            directoryName[i] = FileSystem::PATH_DELIM;
+        }
+    }
+    return true;
+}
+
+bool RemoveFileIfExists(const char* path)
+{
+    AWS_LOGSTREAM_INFO(FILE_SYSTEM_UTILS_LOG_TAG, "Deleting file: " << path);
+
+    int errorCode = unlink(path);
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Deletion of file: " << path << " Returned error code: " << errno);
+    return errorCode == 0 || errno == ENOENT;
+}
+
+bool RemoveDirectoryIfExists(const char* path)
+{
+    AWS_LOGSTREAM_INFO(FILE_SYSTEM_UTILS_LOG_TAG, "Deleting directory: " << path);
+    int errorCode = rmdir(path);
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "Deletion of directory: " << path << " Returned error code: " << errno);
+    return errorCode == 0 || errno == ENOTDIR || errno == ENOENT;
+}
+
+bool RelocateFileOrDirectory(const char* from, const char* to)
+{
+    AWS_LOGSTREAM_INFO(FILE_SYSTEM_UTILS_LOG_TAG, "Moving file at " << from << " to " << to);
+
+    int errorCode = std::rename(from, to);
+
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG,  "The moving operation of file at " << from << " to " << to << " Returned error code of " << errno);
+    return errorCode == 0;
+}
+
+Aws::String CreateTempFilePath()
+{
+    Aws::StringStream ss;
+    auto dt = Aws::Utils::DateTime::Now();
+
+    ss << dt.ToGmtString("%Y%m%dT%H%M%S") << dt.Millis() << Aws::String(Aws::Utils::UUID::RandomUUID());
+    Aws::String tempFile(ss.str());
+
+    AWS_LOGSTREAM_DEBUG(FILE_SYSTEM_UTILS_LOG_TAG, "CreateTempFilePath generated: " << tempFile);
+
+    return tempFile;
+}
+
+Aws::String GetExecutableDirectory()
+{
+    char dest[PATH_MAX];
+    memset(dest, 0, PATH_MAX);
+#ifdef __APPLE__
+    uint32_t destSize = PATH_MAX;
+    if (_NSGetExecutablePath(dest, &destSize) == 0)
+#else
+    size_t destSize = PATH_MAX;
+    if (readlink("/proc/self/exe", dest, destSize))
+#endif
+    {
+        Aws::String executablePath(dest);
+        auto lastSlash = executablePath.find_last_of('/');
+        if(lastSlash != std::string::npos)
+        {
+            return executablePath.substr(0, lastSlash);
+        }
+    }
+    return "./";
+}
+
+Aws::UniquePtr<Directory> OpenDirectory(const Aws::String& path, const Aws::String& relativePath)
+{
+    return Aws::MakeUnique<PosixDirectory>(FILE_SYSTEM_UTILS_LOG_TAG, path, relativePath);
+}
+
+} // namespace FileSystem
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/OSVersionInfo.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/OSVersionInfo.cpp
new file mode 100644
index 0000000000..040173a2e5
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/OSVersionInfo.cpp
@@ -0,0 +1,59 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/platform/OSVersionInfo.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/StringUtils.h>
+#include <sys/utsname.h>
+
+namespace Aws
+{
+namespace OSVersionInfo
+{
+
+Aws::String GetSysCommandOutput(const char* command)
+{
+    Aws::String outputStr;
+    FILE* outputStream;
+    const int maxBufferSize = 256;
+    char outputBuffer[maxBufferSize];
+
+    outputStream = popen(command, "r");
+
+    if (outputStream)
+    {
+        while (!feof(outputStream))
+        {
+            if (fgets(outputBuffer, maxBufferSize, outputStream) != nullptr)
+            {
+                outputStr.append(outputBuffer);
+            }
+        }
+
+        pclose(outputStream);
+
+        return Aws::Utils::StringUtils::Trim(outputStr.c_str());
+    }
+
+    return {};
+}
+
+
+Aws::String ComputeOSVersionString()
+{
+    utsname name;
+    int32_t success = uname(&name);
+    if(success >= 0)
+    {
+        Aws::StringStream ss;
+        ss << name.sysname << "/" << name.release << " " << name.machine;
+        return ss.str();
+    }
+
+    return "non-windows/unknown";
+}
+
+} // namespace OSVersionInfo
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Security.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Security.cpp
new file mode 100644
index 0000000000..286de1a948
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Security.cpp
@@ -0,0 +1,26 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/platform/Security.h>
+
+#include <string.h>
+
+namespace Aws
+{
+namespace Security
+{
+
+void SecureMemClear(unsigned char *data, size_t length)
+{
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__)
+    memset_s(data, length, 0, length);
+#else
+    memset(data, 0, length);
+    asm volatile("" : "+m" (data));
+#endif
+}
+
+} // namespace Security
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Time.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Time.cpp
new file mode 100644
index 0000000000..7a0d3d1c0a
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/platform/linux-shared/Time.cpp
@@ -0,0 +1,31 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/platform/Time.h>
+
+#include <time.h>
+
+namespace Aws
+{
+namespace Time
+{
+
+time_t TimeGM(struct tm* const t)
+{
+    return timegm(t);
+}
+
+void LocalTime(tm* t, std::time_t time)
+{
+    localtime_r(&time, t);
+}
+
+void GMTime(tm* t, std::time_t time)
+{
+    gmtime_r(&time, t);
+}
+
+} // namespace Time
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/ARN.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/ARN.cpp
new file mode 100644
index 0000000000..dac358c09d
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/ARN.cpp
@@ -0,0 +1,46 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/ARN.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        ARN::ARN(const Aws::String& arnString)
+        {
+            m_valid = false;
+
+            // An ARN can be identified as any string starting with arn: with 6 defined segments each separated by a :
+            const auto result = StringUtils::Split(arnString, ':', StringUtils::SplitOptions::INCLUDE_EMPTY_ENTRIES);
+
+            if (result.size() < 6)
+            {
+                return;
+            }
+
+            if (result[0] != "arn")
+            {
+                return;
+            }
+
+            m_arnString = arnString;
+            m_partition = result[1];
+            m_service = result[2];
+            m_region = result[3];
+            m_accountId = result[4];
+            m_resource = result[5];
+
+            for (size_t i = 6; i < result.size(); i++)
+            {
+                m_resource += ":" + result[i];
+            }
+
+            m_valid = true;
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Array.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Array.cpp
new file mode 100644
index 0000000000..43e7863421
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Array.cpp
@@ -0,0 +1,65 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/Array.h>
+
+#include <aws/core/platform/Security.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+            Array<CryptoBuffer> CryptoBuffer::Slice(size_t sizeOfSlice) const
+            {
+                assert(sizeOfSlice <= GetLength());
+
+                size_t numberOfSlices = (GetLength() + sizeOfSlice - 1) / sizeOfSlice;
+                size_t currentSliceIndex = 0;
+                Array<CryptoBuffer> slices(numberOfSlices);
+
+                for (size_t i = 0; i < numberOfSlices - 1; ++i)
+                {
+                    CryptoBuffer newArray(sizeOfSlice);
+                    for (size_t cpyIdx = 0; cpyIdx < newArray.GetLength(); ++cpyIdx)
+                    {
+                        newArray[cpyIdx] = GetItem(cpyIdx + currentSliceIndex);
+                    }
+                    currentSliceIndex += sizeOfSlice;
+                    slices[i] = std::move(newArray);
+                }
+
+                CryptoBuffer lastArray(GetLength() % sizeOfSlice == 0 ? sizeOfSlice : GetLength() % sizeOfSlice );
+                for (size_t cpyIdx = 0; cpyIdx < lastArray.GetLength(); ++cpyIdx)
+                {
+                    lastArray[cpyIdx] = GetItem(cpyIdx + currentSliceIndex);
+                }
+                slices[slices.GetLength() - 1] = std::move(lastArray);
+
+                return slices;
+            }            
+
+            CryptoBuffer& CryptoBuffer::operator^(const CryptoBuffer& operand)
+            {
+                size_t smallestSize = std::min<size_t>(GetLength(), operand.GetLength());
+                for (size_t i = 0; i < smallestSize; ++i)
+                {
+                    (*this)[i] ^= operand[i];
+                }
+
+                return *this;
+            }
+
+            /**
+            * Zero out the array securely
+            */
+            void CryptoBuffer::Zero()
+            {
+                if (GetUnderlyingData())
+                {
+                    Aws::Security::SecureMemClear(GetUnderlyingData(), GetLength());
+                }
+            }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DNS.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DNS.cpp
new file mode 100644
index 0000000000..ce588150e2
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DNS.cpp
@@ -0,0 +1,55 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/DNS.h>
+#include <aws/core/utils/StringUtils.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        bool IsValidDnsLabel(const Aws::String& label)
+        {
+            // Valid DNS hostnames are composed of valid DNS labels separated by a period.
+            // Valid DNS labels are characterized by the following:
+            // 1- Only contains alphanumeric characters and/or dashes
+            // 2- Cannot start or end with a dash
+            // 3- Have a maximum length of 63 characters (the entirety of the domain name should be less than 255 bytes)
+
+            if (label.empty())
+                return false;
+
+            if (label.size() > 63)
+                return false;
+
+            if (!StringUtils::IsAlnum(label.front()))
+                return false; // '-' is not acceptable as the first character
+
+            if (!StringUtils::IsAlnum(label.back()))
+                return false; // '-' is not acceptable as the last  character
+
+            for (size_t i = 1, e = label.size() - 1; i < e; ++i)
+            {
+                auto c = label[i];
+                if (c != '-' && !StringUtils::IsAlnum(c))
+                    return false;
+            }
+
+            return true;
+        }
+
+        bool IsValidHost(const Aws::String& host)
+        {
+            // Valid DNS hostnames are composed of valid DNS labels separated by a period.
+            auto labels = StringUtils::Split(host, '.');
+            if (labels.empty()) 
+            {
+                return false;
+            }
+
+            return !std::any_of(labels.begin(), labels.end(), [](const Aws::String& label){ return !IsValidDnsLabel(label); });
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DateTimeCommon.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DateTimeCommon.cpp
new file mode 100644
index 0000000000..b690c90c2d
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/DateTimeCommon.cpp
@@ -0,0 +1,1502 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/DateTime.h>
+
+#include <aws/core/platform/Time.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <time.h>
+#include <cassert>
+#include <iostream>
+#include <cstring>
+
+static const char* CLASS_TAG = "DateTime";
+static const char* RFC822_DATE_FORMAT_STR_MINUS_Z = "%a, %d %b %Y %H:%M:%S";
+static const char* RFC822_DATE_FORMAT_STR_WITH_Z = "%a, %d %b %Y %H:%M:%S %Z";
+static const char* ISO_8601_LONG_DATE_FORMAT_STR = "%Y-%m-%dT%H:%M:%SZ";
+static const char* ISO_8601_LONG_BASIC_DATE_FORMAT_STR = "%Y%m%dT%H%M%SZ";
+
+using namespace Aws::Utils;
+
+
+std::tm CreateZeroedTm()
+{
+    std::tm timeStruct;
+    timeStruct.tm_hour = 0;
+    timeStruct.tm_isdst = -1;
+    timeStruct.tm_mday = 0;
+    timeStruct.tm_min = 0;
+    timeStruct.tm_mon = 0;
+    timeStruct.tm_sec = 0;
+    timeStruct.tm_wday = 0;
+    timeStruct.tm_yday = 0;
+    timeStruct.tm_year = 0;
+
+    return timeStruct;
+}
+
+//Get the 0-6 week day number from a string representing WeekDay. Case insensitive and will stop on abbreviation
+static int GetWeekDayNumberFromStr(const char* timeString, size_t startIndex, size_t stopIndex)
+{
+    if(stopIndex - startIndex < 3)
+    {
+        return -1;
+    }
+
+    size_t index = startIndex;
+
+    char c = timeString[index];
+    char next = 0;
+
+    //it's ugly but this should compile down to EXACTLY 3 comparisons and no memory allocations
+    switch(c)
+    {
+    case 'S':
+    case 's':
+        next = timeString[++index];
+        switch(next)
+        {
+        case 'A':
+        case 'a':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'T':
+            case 't':
+                return 6;
+            default:
+                return -1;
+            }
+        case 'U':
+        case 'u':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'N':
+            case 'n':
+                return 0;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'T':
+    case 't':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'H':
+        case 'h':
+            next = timeString[++index];
+            switch(next)
+            {
+            case 'U':
+            case 'u':
+                return 4;
+            default:
+                return -1;
+            }
+        case 'U':
+        case 'u':
+            next = timeString[++index];
+            switch(next)
+            {
+            case 'E':
+            case 'e':
+                return 2;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'M':
+    case 'm':
+        next = timeString[++index];
+        switch(next)
+        {
+        case 'O':
+        case 'o':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'N':
+            case 'n':
+                return 1;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'W':
+    case 'w':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'E':
+        case 'e':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'D':
+            case 'd':
+                return 3;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'F':
+    case 'f':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'R':
+        case 'r':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'I':
+            case 'i':
+                return 5;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    default:
+        return -1;
+    }
+}
+
+//Get the 0-11 monthy number from a string representing Month. Case insensitive and will stop on abbreviation
+static int GetMonthNumberFromStr(const char* timeString, size_t startIndex, size_t stopIndex)
+{
+    if (stopIndex - startIndex < 3)
+    {
+        return -1;
+    }
+
+    size_t index = startIndex;
+
+    char c = timeString[index];
+    char next = 0;
+
+    //it's ugly but this should compile down to EXACTLY 3 comparisons and no memory allocations
+    switch (c)
+    {
+    case 'M':
+    case 'm':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'A':
+        case 'a':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'Y':
+            case 'y':
+                return 4;
+            case 'R':
+            case 'r':
+                return 2;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'A':
+    case 'a':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'P':
+        case 'p':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'R':
+            case 'r':
+                return 3;
+            default:
+                return -1;
+            }
+        case 'U':
+        case 'u':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'G':
+            case 'g':
+                return 7;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'J':
+    case 'j':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'A':
+        case 'a':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'N':
+            case 'n':
+                return 0;
+            default:
+                return -1;
+            }
+        case 'U':
+        case 'u':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'N':
+            case 'n':
+                return 5;
+            case 'L':
+            case 'l':
+                return 6;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'F':
+    case 'f':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'E':
+        case 'e':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'B':
+            case 'b':
+                return 1;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'S':
+    case 's':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'E':
+        case 'e':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'P':
+            case 'p':
+                return 8;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'O':
+    case 'o':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'C':
+        case 'c':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'T':
+            case 't':
+                return 9;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'N':
+    case 'n':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'O':
+        case 'o':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'V':
+            case 'v':
+                return 10;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    case 'D':
+    case 'd':
+        next = timeString[++index];
+        switch (next)
+        {
+        case 'E':
+        case 'e':
+            next = timeString[++index];
+            switch (next)
+            {
+            case 'C':
+            case 'c':
+                return 11;
+            default:
+                return -1;
+            }
+        default:
+            return -1;
+        }
+    default:
+        return -1;
+    }
+}
+// Ensure local classes with generic names have internal linkage
+namespace {
+
+class DateParser
+{
+public:
+    DateParser(const char* toParse) : m_error(false), m_toParse(toParse), m_utcAssumed(true)
+    {
+        m_parsedTimestamp = CreateZeroedTm();
+        memset(m_tz, 0, 7);
+    }
+
+    virtual ~DateParser() = default;
+
+    virtual void Parse() = 0;
+    bool WasParseSuccessful() const { return !m_error; }
+    std::tm& GetParsedTimestamp() { return m_parsedTimestamp; }
+    bool ShouldIAssumeThisIsUTC() const { return m_utcAssumed; }
+    const char* GetParsedTimezone() const { return m_tz; }
+
+protected:
+    bool m_error;
+    const char* m_toParse;
+    std::tm m_parsedTimestamp;
+    bool m_utcAssumed;
+    // The size should be at least one byte greater than the maximum possible size so that we could use the last char to indicate the end of the string.
+    char m_tz[7];
+};
+
+static const int MAX_LEN = 100;
+
+//Before you send me hate mail because I'm doing this manually, I encourage you to try using std::get_time on all platforms and getting
+//uniform results. Timezone information doesn't parse on Windows and it hardly even works on GCC 4.9.x. This is the only way to make sure
+//the standard is parsed correctly. strptime isn't available one Windows. This code gets hit pretty hard during http serialization/deserialization
+//as a result I'm going for no dynamic allocations and linear complexity
+class RFC822DateParser : public DateParser
+{
+public:
+    RFC822DateParser(const char* toParse) : DateParser(toParse), m_state(0)
+    {
+    }
+
+    /**
+     * Really simple state machine for the format %a, %d %b %Y %H:%M:%S %Z
+     */
+    void Parse() override
+    {
+        size_t len = strlen(m_toParse);
+
+        //DOS check
+        if (len > MAX_LEN)
+        {
+            AWS_LOGSTREAM_WARN(CLASS_TAG, "Incoming String to parse too long with length: " << len)
+            m_error = true;
+            return;
+        }
+
+        size_t index = 0;
+        size_t stateStartIndex = 0;
+        int finalState = 8;
+
+        while(m_state <= finalState && !m_error && index < len)
+        {
+            char c = m_toParse[index];
+
+            switch (m_state)
+            {
+                case 0:
+                    if(c == ',')
+                    {
+                        int weekNumber = GetWeekDayNumberFromStr(m_toParse, stateStartIndex, index + 1);
+
+                        if (weekNumber > -1)
+                        {
+                            m_state = 1;
+                            stateStartIndex = index + 1;
+                            m_parsedTimestamp.tm_wday = weekNumber;
+                        }
+                        else
+                        {
+                            m_error = true;
+                        }
+                    }
+                    else if(!isalpha(c))
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 1:
+                    if (isspace(c))
+                    {
+                        m_state = 2;
+                        stateStartIndex = index + 1;
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 2:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_mday = m_parsedTimestamp.tm_mday * 10 + (c - '0');
+                    }
+                    else if(isspace(c))
+                    {
+                        m_state = 3;
+                        stateStartIndex = index + 1;
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 3:
+                    if (isspace(c))
+                    {
+                        int monthNumber = GetMonthNumberFromStr(m_toParse, stateStartIndex, index + 1);
+
+                        if (monthNumber > -1)
+                        {
+                            m_state = 4;
+                            stateStartIndex = index + 1;
+                            m_parsedTimestamp.tm_mon = monthNumber;
+                        }
+                        else
+                        {
+                            m_error = true;
+                        }
+                    }
+                    else if (!isalpha(c))
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 4:
+                    if (isspace(c) && index - stateStartIndex == 4)
+                    {
+                        m_state = 5;
+                        stateStartIndex = index + 1;
+                        m_parsedTimestamp.tm_year -= 1900;
+                    }
+                    else if (isspace(c) && index - stateStartIndex == 2)
+                    {
+                        m_state = 5;
+                        stateStartIndex = index + 1;
+                        m_parsedTimestamp.tm_year += 2000 - 1900;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_year = m_parsedTimestamp.tm_year * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 5:
+                    if(c == ':' && index - stateStartIndex == 2)
+                    {
+                        m_state = 6;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_hour = m_parsedTimestamp.tm_hour * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 6:
+                    if (c == ':' && index - stateStartIndex == 2)
+                    {
+                        m_state = 7;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_min = m_parsedTimestamp.tm_min * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 7:
+                    if (isspace(c) && index - stateStartIndex == 2)
+                    {
+                        m_state = 8;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_sec = m_parsedTimestamp.tm_sec * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 8:
+                    if ((isalnum(c) || c == '+' || c == '-') && (index - stateStartIndex < 5))
+                    {
+                        m_tz[index - stateStartIndex] = c;
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                default:
+                    m_error = true;
+                    break;
+            }
+
+            index++;
+        }
+
+        if (m_tz[0] != 0)
+        {
+           m_utcAssumed = IsUTCTimeZoneDesignator(m_tz);
+        }
+
+        m_error = (m_error || m_state != finalState);
+    }
+
+    int GetState() const { return m_state; }
+
+private:
+    //Detects whether or not the passed in timezone string is a UTC zone.
+    static bool IsUTCTimeZoneDesignator(const char* str)
+    {
+        size_t len = strlen(str);
+        if (len < 3)
+        {
+            return false;
+        }
+
+        int index = 0;
+        char c = str[index];
+        switch (c)
+        {
+        case 'U':
+        case 'u':
+            c = str[++index];
+            switch(c)
+            {
+            case 'T':
+            case 't':
+                c = str[++index];
+                switch(c)
+                {
+                case 'C':
+                case 'c':
+                    return true;
+                default:
+                    return false;
+                }
+
+            case 'C':
+            case 'c':
+                c = str[++index];
+                switch (c)
+                {
+                case 'T':
+                case 't':
+                    return true;
+                default:
+                    return false;
+                }
+            default:
+                return false;
+            }
+        case 'G':
+        case 'g':
+            c = str[++index];
+            switch (c)
+            {
+            case 'M':
+            case 'm':
+                c = str[++index];
+                switch (c)
+                {
+                case 'T':
+                case 't':
+                    return true;
+                default:
+                    return false;
+                }
+            default:
+                return false;
+            }
+        case '+':
+        case '-':
+            c = str[++index];
+            switch (c)
+            {
+            case '0':
+                c = str[++index];
+                switch (c)
+                {
+                case '0':
+                    c = str[++index];
+                    switch (c)
+                    {
+                    case '0':
+                        return true;
+                    default:
+                        return false;
+                    }
+                default:
+                    return false;
+                }
+            default:
+                return false;
+            }
+        case 'Z':
+            return true;
+        default:
+            return false;
+        }
+
+    }
+
+    int m_state;
+};
+
+//Before you send me hate mail because I'm doing this manually, I encourage you to try using std::get_time on all platforms and getting
+//uniform results. Timezone information doesn't parse on Windows and it hardly even works on GCC 4.9.x. This is the only way to make sure
+//the standard is parsed correctly. strptime isn't available one Windows. This code gets hit pretty hard during http serialization/deserialization
+//as a result I'm going for no dynamic allocations and linear complexity
+class ISO_8601DateParser : public DateParser
+{
+public:
+    ISO_8601DateParser(const char* stringToParse) : DateParser(stringToParse), m_state(0)
+    {
+    }
+
+    //parses "%Y-%m-%dT%H:%M:%SZ or "%Y-%m-%dT%H:%M:%S.000Z"
+    void Parse() override
+    {
+        size_t len = strlen(m_toParse);
+
+        //DOS check
+        if (len > MAX_LEN)
+        {
+            AWS_LOGSTREAM_WARN(CLASS_TAG, "Incoming String to parse too long with length: " << len)
+            m_error = true;
+            return;
+        }
+
+        size_t index = 0;
+        size_t stateStartIndex = 0;
+        const int finalState = 7;
+
+        while (m_state <= finalState && !m_error && index < len)
+        {
+            char c = m_toParse[index];
+            switch (m_state)
+            {
+                case 0:
+                    if (c == '-' && index - stateStartIndex == 4)
+                    {
+                        m_state = 1;
+                        stateStartIndex = index + 1;
+                        m_parsedTimestamp.tm_year -= 1900;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_year = m_parsedTimestamp.tm_year * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 1:
+                    if (c == '-' && index - stateStartIndex == 2)
+                    {
+                        m_state = 2;
+                        stateStartIndex = index + 1;
+                        m_parsedTimestamp.tm_mon -= 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_mon = m_parsedTimestamp.tm_mon * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+
+                    break;
+                case 2:
+                    if (c == 'T' && index - stateStartIndex == 2)
+                    {
+                        m_state = 3;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_mday = m_parsedTimestamp.tm_mday * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+
+                    break;
+                case 3:
+                    if (c == ':' && index - stateStartIndex == 2)
+                    {
+                        m_state = 4;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_hour = m_parsedTimestamp.tm_hour * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+
+                    break;
+                case 4:
+                    if (c == ':' && index - stateStartIndex == 2)
+                    {
+                        m_state = 5;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_min = m_parsedTimestamp.tm_min * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+
+                    break;
+                case 5:
+                    if ((c == 'Z' || c == '+' || c == '-' ) && (index - stateStartIndex == 2))
+                    {
+                        m_tz[0] = c;
+                        m_state = 7;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (c == '.' && index - stateStartIndex == 2)
+                    {
+                        m_state = 6;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_sec = m_parsedTimestamp.tm_sec * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+
+                    break;
+                case 6:
+                    if ((c == 'Z' || c == '+' || c == '-' ) && (index - stateStartIndex == 3))
+                    {
+                        m_tz[0] = c;
+                        m_state = 7;
+                        stateStartIndex = index + 1;
+                    }
+                    else if(!isdigit(c))
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 7:
+                    if ((isdigit(c) || c == ':') && (index - stateStartIndex < 5))
+                    {
+                        m_tz[1 + index - stateStartIndex] = c;
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                default:
+                    m_error = true;
+                    break;
+            }
+            index++;
+        }
+
+        if (m_tz[0] != 0)
+        {
+            m_utcAssumed = IsUTCTimeZoneDesignator(m_tz);
+        }
+
+        m_error = (m_error || m_state != finalState);
+    }
+
+private:
+    //Detects whether or not the passed in timezone string is a UTC zone.
+    static bool IsUTCTimeZoneDesignator(const char* str)
+    {
+        size_t len = strlen(str);
+
+        if (len > 0)
+        {
+            if (len == 1 && str[0] == 'Z')
+            {
+                return true;
+            }
+
+            if (len == 6 && str[0] == '+'
+                         && str[1] == '0'
+                         && str[2] == '0'
+                         && str[3] == ':'
+                         && str[4] == '0'
+                         && str[5] == '0')
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        return false;
+    }
+
+    int m_state;
+};
+
+class ISO_8601BasicDateParser : public DateParser
+{
+public:
+    ISO_8601BasicDateParser(const char* stringToParse) : DateParser(stringToParse), m_state(0)
+    {
+    }
+
+    //parses "%Y%m%dT%H%M%SZ or "%Y%m%dT%H%M%S000Z"
+    void Parse() override
+    {
+        size_t len = strlen(m_toParse);
+
+        //DOS check
+        if (len > MAX_LEN)
+        {
+            AWS_LOGSTREAM_WARN(CLASS_TAG, "Incoming String to parse too long with length: " << len)
+            m_error = true;
+            return;
+        }
+
+        size_t index = 0;
+        size_t stateStartIndex = 0;
+        const int finalState = 7;
+
+        while (m_state <= finalState && !m_error && index < len)
+        {
+            char c = m_toParse[index];
+            switch (m_state)
+            {
+                // On year: %Y
+                case 0:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_year = m_parsedTimestamp.tm_year * 10 + (c - '0');
+                        if (index - stateStartIndex == 3)
+                        {
+                            m_state = 1;
+                            stateStartIndex = index + 1;
+                            m_parsedTimestamp.tm_year -= 1900;
+                        }
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On month: %m
+                case 1:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_mon = m_parsedTimestamp.tm_mon * 10 + (c - '0');
+                        if (index - stateStartIndex == 1)
+                        {
+                            m_state = 2;
+                            stateStartIndex = index + 1;
+                            m_parsedTimestamp.tm_mon -= 1;
+                        }
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On month day: %d
+                case 2:
+                    if (c == 'T' && index - stateStartIndex == 2)
+                    {
+                        m_state = 3;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_mday = m_parsedTimestamp.tm_mday * 10 + (c - '0');
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On hour: %H
+                case 3:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_hour = m_parsedTimestamp.tm_hour * 10 + (c - '0');
+                        if (index - stateStartIndex == 1)
+                        {
+                            m_state = 4;
+                            stateStartIndex = index + 1;
+                        }
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On minute: %M
+                case 4:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_min = m_parsedTimestamp.tm_min * 10 + (c - '0');
+                        if (index - stateStartIndex == 1)
+                        {
+                            m_state = 5;
+                            stateStartIndex = index + 1;
+                        }
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On second: %S
+                case 5:
+                    if (isdigit(c))
+                    {
+                        m_parsedTimestamp.tm_sec = m_parsedTimestamp.tm_sec * 10 + (c - '0');
+                        if (index - stateStartIndex == 1)
+                        {
+                            m_state = 6;
+                            stateStartIndex = index + 1;
+                        }
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                // On TZ: Z or 000Z
+                case 6:
+                    if ((c == 'Z' || c == '+' || c == '-' ) && (index - stateStartIndex == 0 || index - stateStartIndex == 3))
+                    {
+                        m_tz[0] = c;
+                        m_state = 7;
+                        stateStartIndex = index + 1;
+                    }
+                    else if (!isdigit(c) || index - stateStartIndex > 3)
+                    {
+                        m_error = true;
+                    }
+                    break;
+                case 7:
+                    if ((isdigit(c) || c == ':') && (index - stateStartIndex < 5))
+                    {
+                        m_tz[1 + index - stateStartIndex] = c;
+                    }
+                    else
+                    {
+                        m_error = true;
+                    }
+                    break;
+                default:
+                    m_error = true;
+                    break;
+            }
+            index++;
+        }
+
+        if (m_tz[0] != 0)
+        {
+            m_utcAssumed = IsUTCTimeZoneDesignator(m_tz);
+        }
+
+        m_error = (m_error || m_state != finalState);
+    }
+
+private:
+    //Detects whether or not the passed in timezone string is a UTC zone.
+    static bool IsUTCTimeZoneDesignator(const char* str)
+    {
+        size_t len = strlen(str);
+
+        if (len > 0)
+        {
+            if (len == 1 && str[0] == 'Z')
+            {
+                return true;
+            }
+
+            if (len == 5 && str[0] == '+'
+                         && str[1] == '0'
+                         && str[2] == '0'
+                         && str[3] == '0'
+                         && str[4] == '0')
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        return false;
+    }
+
+    int m_state;
+};
+    
+} // namespace 
+
+DateTime::DateTime(const std::chrono::system_clock::time_point& timepointToAssign) : m_time(timepointToAssign), m_valid(true)
+{
+}
+
+DateTime::DateTime(int64_t millisSinceEpoch) : m_valid(true)
+{
+    std::chrono::duration<int64_t, std::chrono::milliseconds::period> timestamp(millisSinceEpoch);
+    m_time = std::chrono::system_clock::time_point(timestamp);
+}
+
+DateTime::DateTime(double epoch_millis) : m_valid(true)
+{
+    std::chrono::duration<double, std::chrono::seconds::period> timestamp(epoch_millis);
+    m_time = std::chrono::system_clock::time_point(std::chrono::duration_cast<std::chrono::milliseconds>(timestamp));
+}
+
+DateTime::DateTime(const Aws::String& timestamp, DateFormat format) : m_valid(true)
+{
+    ConvertTimestampStringToTimePoint(timestamp.c_str(), format);
+}
+
+DateTime::DateTime(const char* timestamp, DateFormat format) : m_valid(true)
+{
+    ConvertTimestampStringToTimePoint(timestamp, format);
+}
+
+DateTime::DateTime() : m_valid(true)
+{
+    //init time_point to default by doing nothing.
+}
+
+DateTime& DateTime::operator=(const Aws::String& timestamp)
+{
+    *this = DateTime(timestamp, DateFormat::AutoDetect);
+    return *this;
+}
+
+DateTime& DateTime::operator=(double secondsMillis)
+{
+    *this = DateTime(secondsMillis);
+    return *this;
+}
+
+DateTime& DateTime::operator=(int64_t millisSinceEpoch)
+{
+    *this = DateTime(millisSinceEpoch);
+    return *this;
+}
+
+DateTime& DateTime::operator=(const std::chrono::system_clock::time_point& timepointToAssign)
+{
+    *this = DateTime(timepointToAssign);
+    return *this;
+}
+
+bool DateTime::operator == (const DateTime& other) const
+{
+    return m_time == other.m_time;
+}
+
+bool DateTime::operator < (const DateTime& other) const
+{
+    return m_time < other.m_time;
+}
+
+bool DateTime::operator > (const DateTime& other) const
+{
+    return m_time > other.m_time;
+}
+
+bool DateTime::operator != (const DateTime& other) const
+{
+    return m_time != other.m_time;
+}
+
+bool DateTime::operator <= (const DateTime& other) const
+{
+    return m_time <= other.m_time;
+}
+
+bool DateTime::operator >= (const DateTime& other) const
+{
+    return m_time >= other.m_time;
+}
+
+DateTime DateTime::operator +(const std::chrono::milliseconds& a) const
+{
+    auto timepointCpy = m_time;
+    timepointCpy += a;
+    return DateTime(timepointCpy);
+}
+
+DateTime DateTime::operator -(const std::chrono::milliseconds& a) const
+{
+    auto timepointCpy = m_time;
+    timepointCpy -= a;
+    return DateTime(timepointCpy);
+}
+
+Aws::String DateTime::ToLocalTimeString(DateFormat format) const
+{
+    switch (format)
+    {
+    case DateFormat::ISO_8601:
+        return ToLocalTimeString(ISO_8601_LONG_DATE_FORMAT_STR);
+    case DateFormat::ISO_8601_BASIC:
+        return ToLocalTimeString(ISO_8601_LONG_BASIC_DATE_FORMAT_STR);
+    case DateFormat::RFC822:
+        return ToLocalTimeString(RFC822_DATE_FORMAT_STR_WITH_Z);
+    default:
+        assert(0);
+        return "";
+    }
+}
+
+Aws::String DateTime::ToLocalTimeString(const char* formatStr) const
+{
+    struct tm localTimeStamp = ConvertTimestampToLocalTimeStruct();
+
+    char formattedString[100];
+    std::strftime(formattedString, sizeof(formattedString), formatStr, &localTimeStamp);
+    return formattedString;
+}
+
+Aws::String DateTime::ToGmtString(DateFormat format) const
+{
+    switch (format)
+    {
+    case DateFormat::ISO_8601:
+        return ToGmtString(ISO_8601_LONG_DATE_FORMAT_STR);
+    case DateFormat::ISO_8601_BASIC:
+        return ToGmtString(ISO_8601_LONG_BASIC_DATE_FORMAT_STR);
+    case DateFormat::RFC822:
+    {
+        //Windows erroneously drops the local timezone in for %Z
+        Aws::String rfc822GmtString = ToGmtString(RFC822_DATE_FORMAT_STR_MINUS_Z);
+        rfc822GmtString += " GMT";
+        return rfc822GmtString;
+    }
+    default:
+        assert(0);
+        return "";
+    }
+}
+
+Aws::String DateTime::ToGmtString(const char* formatStr) const
+{
+    struct tm gmtTimeStamp = ConvertTimestampToGmtStruct();
+
+    char formattedString[100];
+    std::strftime(formattedString, sizeof(formattedString), formatStr, &gmtTimeStamp);
+    return formattedString;
+}
+
+double DateTime::SecondsWithMSPrecision() const
+{
+    std::chrono::duration<double, std::chrono::seconds::period> timestamp(m_time.time_since_epoch());
+    return timestamp.count();
+}
+
+int64_t DateTime::Millis() const
+{
+    auto timestamp = std::chrono::duration_cast<std::chrono::milliseconds>(m_time.time_since_epoch());
+    return timestamp.count();
+}
+
+std::chrono::system_clock::time_point DateTime::UnderlyingTimestamp() const
+{
+    return m_time;
+}
+
+int DateTime::GetYear(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_year + 1900;
+}
+
+Month DateTime::GetMonth(bool localTime) const
+{
+    return static_cast<Aws::Utils::Month>(GetTimeStruct(localTime).tm_mon);
+}
+
+int DateTime::GetDay(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_mday;
+}
+
+DayOfWeek DateTime::GetDayOfWeek(bool localTime) const
+{
+    return static_cast<Aws::Utils::DayOfWeek>(GetTimeStruct(localTime).tm_wday);
+}
+
+int DateTime::GetHour(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_hour;
+}
+
+int DateTime::GetMinute(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_min;
+}
+
+int DateTime::GetSecond(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_sec;
+}
+
+bool DateTime::IsDST(bool localTime) const
+{
+    return GetTimeStruct(localTime).tm_isdst == 0 ? false : true;
+}
+
+DateTime DateTime::Now()
+{
+    DateTime dateTime;
+    dateTime.m_time = std::chrono::system_clock::now();
+    return dateTime;
+}
+
+int64_t DateTime::CurrentTimeMillis()
+{
+    return Now().Millis();
+}
+
+Aws::String DateTime::CalculateLocalTimestampAsString(const char* formatStr)
+{
+   DateTime now = Now();
+   return now.ToLocalTimeString(formatStr);
+}
+
+Aws::String DateTime::CalculateGmtTimestampAsString(const char* formatStr)
+{
+    DateTime now = Now();
+    return now.ToGmtString(formatStr);
+}
+
+Aws::String DateTime::CalculateGmtTimeWithMsPrecision()
+{
+    auto now = DateTime::Now();
+    struct tm gmtTimeStamp = now.ConvertTimestampToGmtStruct();
+
+    char formattedString[100];
+    auto len = std::strftime(formattedString, sizeof(formattedString), "%Y-%m-%d %H:%M:%S", &gmtTimeStamp);
+    if (len)
+    {
+        auto ms = now.Millis();
+        ms = ms - ms / 1000 * 1000; // calculate the milliseconds as fraction.
+        formattedString[len++] = '.';
+        int divisor = 100;
+        while(divisor)
+        {
+            auto digit = ms / divisor;
+            formattedString[len++] = char('0' + digit);
+            ms = ms - divisor * digit;
+            divisor /= 10;
+        }
+        formattedString[len] = '\0';
+    }
+    return formattedString;
+}
+
+int DateTime::CalculateCurrentHour()
+{
+    return Now().GetHour(true);
+}
+
+double DateTime::ComputeCurrentTimestampInAmazonFormat()
+{
+   return Now().SecondsWithMSPrecision();
+}
+
+std::chrono::milliseconds DateTime::Diff(const DateTime& a, const DateTime& b)
+{
+    auto diff = a.m_time - b.m_time;
+    return std::chrono::duration_cast<std::chrono::milliseconds>(diff);
+}
+
+std::chrono::milliseconds DateTime::operator-(const DateTime& other) const
+{
+    auto diff = this->m_time - other.m_time;
+    return std::chrono::duration_cast<std::chrono::milliseconds>(diff);
+}
+
+void DateTime::ConvertTimestampStringToTimePoint(const char* timestamp, DateFormat format)
+{
+    std::tm timeStruct;
+    bool isUtc = true;
+
+    switch (format)
+    {
+    case DateFormat::RFC822:
+    {
+        RFC822DateParser parser(timestamp);
+        parser.Parse();
+        m_valid = parser.WasParseSuccessful();
+        isUtc = parser.ShouldIAssumeThisIsUTC();
+        timeStruct = parser.GetParsedTimestamp();
+        break;
+    }
+    case DateFormat::ISO_8601:
+    {
+        ISO_8601DateParser parser(timestamp);
+        parser.Parse();
+        m_valid = parser.WasParseSuccessful();
+        isUtc = parser.ShouldIAssumeThisIsUTC();
+        timeStruct = parser.GetParsedTimestamp();
+        break;
+    }
+    case DateFormat::ISO_8601_BASIC:
+    {
+        ISO_8601BasicDateParser parser(timestamp);
+        parser.Parse();
+        m_valid = parser.WasParseSuccessful();
+        isUtc = parser.ShouldIAssumeThisIsUTC();
+        timeStruct = parser.GetParsedTimestamp();
+        break;
+    }
+    case DateFormat::AutoDetect:
+    {
+        RFC822DateParser rfcParser(timestamp);
+        rfcParser.Parse();
+        if(rfcParser.WasParseSuccessful())
+        {
+            m_valid = true;
+            isUtc = rfcParser.ShouldIAssumeThisIsUTC();
+            timeStruct = rfcParser.GetParsedTimestamp();
+            break;
+        }
+        ISO_8601DateParser isoParser(timestamp);
+        isoParser.Parse();
+        if (isoParser.WasParseSuccessful())
+        {
+            m_valid = true;
+            isUtc = isoParser.ShouldIAssumeThisIsUTC();
+            timeStruct = isoParser.GetParsedTimestamp();
+            break;
+        }
+        ISO_8601BasicDateParser isoBasicParser(timestamp);
+        isoBasicParser.Parse();
+        if (isoBasicParser.WasParseSuccessful())
+        {
+            m_valid = true;
+            isUtc = isoBasicParser.ShouldIAssumeThisIsUTC();
+            timeStruct = isoBasicParser.GetParsedTimestamp();
+            break;
+        }
+        m_valid = false;
+        break;
+    }
+    default:
+        assert(0);
+    }
+
+    if (m_valid)
+    {
+        std::time_t tt;
+        if(isUtc)
+        {
+            tt = Aws::Time::TimeGM(&timeStruct);
+        }
+        else
+        {
+            assert(0);
+            AWS_LOGSTREAM_WARN(CLASS_TAG, "Non-UTC timestamp detected. This is always a bug. Make the world a better place and fix whatever sent you this timestamp: " << timestamp)
+            tt = std::mktime(&timeStruct);
+        }
+        m_time = std::chrono::system_clock::from_time_t(tt);
+    }
+}
+
+tm DateTime::GetTimeStruct(bool localTime) const
+{
+    return localTime ? ConvertTimestampToLocalTimeStruct() : ConvertTimestampToGmtStruct();
+}
+
+tm DateTime::ConvertTimestampToLocalTimeStruct() const
+{
+    std::time_t time = std::chrono::system_clock::to_time_t(m_time);
+    struct tm localTimeStamp;
+
+    Aws::Time::LocalTime(&localTimeStamp, time);
+
+    return localTimeStamp;
+}
+
+tm DateTime::ConvertTimestampToGmtStruct() const
+{
+    std::time_t time = std::chrono::system_clock::to_time_t(m_time);
+    struct tm gmtTimeStamp;
+    Aws::Time::GMTime(&gmtTimeStamp, time);
+
+    return gmtTimeStamp;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Directory.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Directory.cpp
new file mode 100644
index 0000000000..49ca56b280
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/Directory.cpp
@@ -0,0 +1,323 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/platform/FileSystem.h>
+#include <aws/core/utils/memory/stl/AWSQueue.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/memory/stl/AWSStreamFwd.h>
+#include <aws/core/utils/StringUtils.h>
+#include <fstream>
+#include <cassert>
+
+namespace Aws
+{
+    namespace FileSystem
+    {
+        Aws::String Join(const Aws::String& leftSegment, const Aws::String& rightSegment)
+        {
+            return Join(PATH_DELIM, leftSegment, rightSegment);
+        }
+
+        Aws::String Join(char delimiter, const Aws::String& leftSegment, const Aws::String& rightSegment)
+        {
+            Aws::StringStream ss;
+
+            if (!leftSegment.empty())
+            {
+                if (leftSegment.back() == delimiter)
+                {
+                    ss << leftSegment.substr(0, leftSegment.length() - 1);
+                }
+                else
+                {
+                    ss << leftSegment;
+                }
+            }
+
+            ss << delimiter;
+
+            if (!rightSegment.empty())
+            {
+                if (rightSegment.front() == delimiter)
+                {
+                    ss << rightSegment.substr(1);
+                }
+                else
+                {
+                    ss << rightSegment;
+                }
+            }
+
+            return ss.str();
+        }
+
+        bool DeepCopyDirectory(const char* from, const char* to)
+        {
+            if (!from || !to) return false;
+
+            DirectoryTree fromDir(from);
+
+            if (!fromDir) return false;
+
+            CreateDirectoryIfNotExists(to);
+            DirectoryTree toDir(to);
+
+            if (!toDir) return false;
+
+            bool success(true);            
+
+            auto visitor = [to,&success](const DirectoryTree*, const DirectoryEntry& entry)
+            {
+                auto newPath = Aws::FileSystem::Join(to, entry.relativePath);
+
+                if (entry.fileType == Aws::FileSystem::FileType::File)
+                {
+                    Aws::OFStream copyOutStream(newPath.c_str());
+                    Aws::IFStream originalStream(entry.path.c_str());
+
+                    if(!copyOutStream.good() || !originalStream.good())
+                    {
+                        success = false; 
+                        return false;
+                    }
+
+                    std::copy(std::istreambuf_iterator<char>(originalStream),
+                        std::istreambuf_iterator<char>(), std::ostreambuf_iterator<char>(copyOutStream));
+                }
+                else if (entry.fileType == Aws::FileSystem::FileType::Directory)
+                {
+                    success = CreateDirectoryIfNotExists(newPath.c_str());
+                    return success;
+                }
+
+                return success;
+            };
+
+            fromDir.TraverseDepthFirst(visitor);
+            return success;
+        }
+
+        bool DeepDeleteDirectory(const char* toDelete)
+        {
+            bool success(true);
+
+            //scope this to a new stack frame, because we won't be able to delete the root directory
+            //unless the directory handle has closed.
+            {
+                DirectoryTree delDir(toDelete);
+
+                if (!delDir) return false;           
+
+                auto visitor = [&success](const DirectoryTree*, const DirectoryEntry& entry)
+                {
+                    if (entry.fileType == FileType::File)
+                    {
+                        success = RemoveFileIfExists(entry.path.c_str());
+                    }
+                    else
+                    {
+                        success = RemoveDirectoryIfExists(entry.path.c_str());
+                    }
+
+                    return success;
+                };
+
+                delDir.TraverseDepthFirst(visitor, true);
+            }
+
+            if (success)
+            {
+                success = RemoveDirectoryIfExists(toDelete);
+            }
+
+            return success;
+        }
+
+        Directory::Directory(const Aws::String& path, const Aws::String& relativePath)
+        {
+            auto trimmedPath = Utils::StringUtils::Trim(path.c_str());
+            auto trimmedRelativePath = Utils::StringUtils::Trim(relativePath.c_str());
+
+            if (!trimmedPath.empty() && trimmedPath[trimmedPath.length() - 1] == PATH_DELIM)
+            {
+                m_directoryEntry.path = trimmedPath.substr(0, trimmedPath.length() - 1);
+            }
+            else
+            {
+                m_directoryEntry.path = trimmedPath;
+            }    
+
+            if (!trimmedRelativePath.empty() && trimmedRelativePath[trimmedRelativePath.length() - 1] == PATH_DELIM)
+            {
+                m_directoryEntry.relativePath = trimmedRelativePath.substr(0, trimmedRelativePath.length() - 1);
+            }
+            else
+            {
+                m_directoryEntry.relativePath = trimmedRelativePath;
+            }          
+        }        
+
+        Aws::UniquePtr<Directory> Directory::Descend(const DirectoryEntry& directoryEntry)
+        {
+            assert(directoryEntry.fileType != FileType::File);
+            return OpenDirectory(directoryEntry.path, directoryEntry.relativePath);
+        }
+
+        Aws::Vector<Aws::String> Directory::GetAllFilePathsInDirectory(const Aws::String& path)
+        {
+            Aws::FileSystem::DirectoryTree tree(path);
+            Aws::Vector<Aws::String> filesVector;
+            auto visitor = [&](const Aws::FileSystem::DirectoryTree*, const Aws::FileSystem::DirectoryEntry& entry) 
+            { 
+                if (entry.fileType == Aws::FileSystem::FileType::File)
+                {
+                    filesVector.push_back(entry.path);
+                }
+                return true;
+            };
+            tree.TraverseBreadthFirst(visitor);
+            return filesVector;
+        }
+
+        DirectoryTree::DirectoryTree(const Aws::String& path)
+        {
+            m_dir = OpenDirectory(path);
+        }
+
+        DirectoryTree::operator bool() const
+        {
+            return m_dir->operator bool();
+        }
+
+        bool DirectoryTree::operator==(DirectoryTree& other)
+        {
+            return Diff(other).size() == 0;
+        }
+
+        bool DirectoryTree::operator==(const Aws::String& path)
+        {
+            return *this == DirectoryTree(path);
+        }
+
+        Aws::Map<Aws::String, DirectoryEntry> DirectoryTree::Diff(DirectoryTree& other)
+        {
+            Aws::Map<Aws::String, DirectoryEntry> thisEntries;
+            auto thisTraversal = [&thisEntries](const DirectoryTree*, const DirectoryEntry& entry)
+            {
+                thisEntries[entry.relativePath] = entry;
+                return true;
+            };
+
+            Aws::Map<Aws::String, DirectoryEntry> otherEntries;
+            auto otherTraversal = [&thisEntries, &otherEntries](const DirectoryTree*, const DirectoryEntry& entry)
+            {
+                auto thisEntry = thisEntries.find(entry.relativePath);
+                if (thisEntry != thisEntries.end())
+                {
+                    thisEntries.erase(entry.relativePath);
+                }
+                else
+                {
+                    otherEntries[entry.relativePath] = entry;
+                }
+
+                return true;
+            };
+
+            TraverseDepthFirst(thisTraversal);
+            other.TraverseDepthFirst(otherTraversal);
+
+            thisEntries.insert(otherEntries.begin(), otherEntries.end());
+            return thisEntries;
+        }
+
+        void DirectoryTree::TraverseDepthFirst(const DirectoryEntryVisitor& visitor, bool postOrderTraversal)
+        {
+            TraverseDepthFirst(*m_dir, visitor, postOrderTraversal);
+            m_dir = OpenDirectory(m_dir->GetPath());
+        }
+
+        void DirectoryTree::TraverseBreadthFirst(const DirectoryEntryVisitor& visitor)
+        {
+            TraverseBreadthFirst(*m_dir, visitor);
+            m_dir = OpenDirectory(m_dir->GetPath());
+        }
+         
+        void DirectoryTree::TraverseBreadthFirst(Directory& dir, const DirectoryEntryVisitor& visitor)
+        {
+            if (!dir)
+            {
+                return;
+            }
+
+            Aws::Queue<DirectoryEntry> queue;
+            while (DirectoryEntry&& entry = dir.Next())
+            {
+                queue.push(std::move(entry));
+            }
+
+            while (queue.size() > 0)
+            {
+                auto entry = queue.front();
+                queue.pop();
+                if(visitor(this, entry))               
+                {
+                    if(entry.fileType == FileType::Directory)
+                    {
+                        auto currentDir = dir.Descend(entry);
+
+                        while (DirectoryEntry&& dirEntry = currentDir->Next())
+                        {
+                            queue.push(std::move(dirEntry));
+                        }
+                    }
+                }
+                else
+                {
+                    return;
+                }
+            }
+        }
+
+        bool DirectoryTree::TraverseDepthFirst(Directory& dir, const DirectoryEntryVisitor& visitor, bool postOrder)
+        {
+            if (!dir)
+            {
+                return true;
+            }
+
+            bool exitTraversal(false);
+            DirectoryEntry entry;
+
+            while ((entry = dir.Next()) && !exitTraversal)
+            {
+                if(!postOrder)
+                {
+                    if(!visitor(this, entry))
+                    {                    
+                        return false;
+                    }
+                }
+
+                if (entry.fileType == FileType::Directory)
+                {
+                    auto subDir = dir.Descend(entry);
+                    exitTraversal = !TraverseDepthFirst(*subDir, visitor, postOrder);
+                } 
+                
+                if (postOrder)
+                {
+                    if (!visitor(this, entry))
+                    {
+                        return false;
+                    }
+                }
+            }
+
+            return !exitTraversal;
+        }       
+
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/EnumParseOverflowContainer.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/EnumParseOverflowContainer.cpp
new file mode 100644
index 0000000000..eaeba1d910
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/EnumParseOverflowContainer.cpp
@@ -0,0 +1,33 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/EnumParseOverflowContainer.h>
+#include <aws/core/utils/logging/LogMacros.h>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Threading;
+
+static const char LOG_TAG[] = "EnumParseOverflowContainer";
+
+const Aws::String& EnumParseOverflowContainer::RetrieveOverflow(int hashCode) const
+{
+    ReaderLockGuard guard(m_overflowLock);
+    auto foundIter = m_overflowMap.find(hashCode);
+    if (foundIter != m_overflowMap.end())
+    {
+        AWS_LOGSTREAM_DEBUG(LOG_TAG, "Found value " << foundIter->second << " for hash " << hashCode << " from enum overflow container.");
+        return foundIter->second;
+    }
+
+    AWS_LOGSTREAM_ERROR(LOG_TAG, "Could not find a previously stored overflow value for hash " << hashCode << ". This will likely break some requests.");
+    return m_emptyString;
+}
+
+void EnumParseOverflowContainer::StoreOverflow(int hashCode, const Aws::String& value)
+{
+    WriterLockGuard guard(m_overflowLock);
+    AWS_LOGSTREAM_WARN(LOG_TAG, "Encountered enum member " << value << " which is not modeled in your clients. You should update your clients when you get a chance.");
+    m_overflowMap[hashCode] = value;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/FileSystemUtils.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/FileSystemUtils.cpp
new file mode 100644
index 0000000000..c47f750960
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/FileSystemUtils.cpp
@@ -0,0 +1,51 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/FileSystemUtils.h>
+
+using namespace Aws::Utils;
+
+Aws::String PathUtils::GetFileNameFromPathWithoutExt(const Aws::String& path)
+{
+    Aws::String fileName = Aws::Utils::PathUtils::GetFileNameFromPathWithExt(path);
+    size_t endPos = fileName.find_last_of('.');
+    if (endPos == std::string::npos)
+    {
+        return fileName;
+    } 
+    if (endPos == 0) // fileName is "."
+    {
+        return {};
+    }
+
+    return fileName.substr(0, endPos);
+}
+
+Aws::String PathUtils::GetFileNameFromPathWithExt(const Aws::String& path)
+{
+    if (path.size() == 0) 
+    {	
+        return path;
+    }
+
+    size_t startPos = path.find_last_of(Aws::FileSystem::PATH_DELIM);
+    if (startPos == path.size() - 1)
+    {
+        return {};
+    }
+
+    if (startPos == std::string::npos)
+    {
+        startPos = 0;
+    }
+    else 
+    {
+        startPos += 1;
+    }
+
+    size_t endPos = path.size() - 1;
+    
+    return path.substr(startPos, endPos - startPos + 1);
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/GetTheLights.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/GetTheLights.cpp
new file mode 100644
index 0000000000..6e78b546ab
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/GetTheLights.cpp
@@ -0,0 +1,36 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/GetTheLights.h>
+#include <cassert>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        GetTheLights::GetTheLights() : m_value(0)
+        {
+        }
+
+        void GetTheLights::EnterRoom(std::function<void()> &&callable)
+        {
+            int cpy = ++m_value;
+            assert(cpy > 0);
+            if(cpy == 1)
+            {
+                callable();
+            }
+        }
+
+        void GetTheLights::LeaveRoom(std::function<void()> &&callable)
+        {
+            int cpy = --m_value;
+            assert(cpy >= 0);
+            if(cpy == 0)
+            {
+                callable();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/HashingUtils.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/HashingUtils.cpp
new file mode 100644
index 0000000000..147bddf33e
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/HashingUtils.cpp
@@ -0,0 +1,236 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/base64/Base64.h>
+#include <aws/core/utils/crypto/Sha256.h>
+#include <aws/core/utils/crypto/Sha256HMAC.h>
+#include <aws/core/utils/crypto/MD5.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/memory/stl/AWSList.h>
+
+#include <iomanip>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Base64;
+using namespace Aws::Utils::Crypto;
+
+// internal buffers are fixed-size arrays, so this is harmless memory-management wise
+static Aws::Utils::Base64::Base64 s_base64;
+
+// Aws Glacier Tree Hash calculates hash value for each 1MB data
+const static size_t TREE_HASH_ONE_MB = 1024 * 1024;
+
+Aws::String HashingUtils::Base64Encode(const ByteBuffer& message)
+{
+    return s_base64.Encode(message);
+}
+
+ByteBuffer HashingUtils::Base64Decode(const Aws::String& encodedMessage)
+{
+    return s_base64.Decode(encodedMessage);
+}
+
+ByteBuffer HashingUtils::CalculateSHA256HMAC(const ByteBuffer& toSign, const ByteBuffer& secret)
+{
+    Sha256HMAC hash;
+    return hash.Calculate(toSign, secret).GetResult();
+}
+
+ByteBuffer HashingUtils::CalculateSHA256(const Aws::String& str)
+{
+    Sha256 hash;
+    return hash.Calculate(str).GetResult();
+}
+
+ByteBuffer HashingUtils::CalculateSHA256(Aws::IOStream& stream)
+{
+    Sha256 hash;
+    return hash.Calculate(stream).GetResult();
+}
+
+/**
+ * This function is only used by HashingUtils::CalculateSHA256TreeHash() in this cpp file
+ * It's a helper function be used to compute the TreeHash defined at:
+ * http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html
+ */
+static ByteBuffer TreeHashFinalCompute(Aws::List<ByteBuffer>& input)
+{
+    Sha256 hash;
+    assert(input.size() != 0);
+
+    // O(n) time complexity of merging (n + n/2 + n/4 + n/8 +...+ 1)
+    while (input.size() > 1)
+    {
+        auto iter = input.begin();
+        // if only one element left, just left it there
+        while (std::next(iter) != input.end())
+        {
+            // if >= two elements
+            Aws::String str(reinterpret_cast<char*>(iter->GetUnderlyingData()), iter->GetLength());
+            // list erase returns iterator of next element next to the erased element or end() if erased the last one
+            // list insert inserts element before pos, here we erase two elements, and insert a new element
+            iter = input.erase(iter);
+            str.append(reinterpret_cast<char*>(iter->GetUnderlyingData()), iter->GetLength());
+            iter = input.erase(iter);
+            input.insert(iter, hash.Calculate(str).GetResult());
+
+            if (iter == input.end()) break;
+        } // while process to the last element
+    } // while the list has only one element left
+
+    return *(input.begin());
+}
+
+ByteBuffer HashingUtils::CalculateSHA256TreeHash(const Aws::String& str)
+{
+    Sha256 hash;
+    if (str.size() == 0)
+    {
+        return hash.Calculate(str).GetResult();
+    }
+
+    Aws::List<ByteBuffer> input;
+    size_t pos = 0;
+    while (pos < str.size())
+    {
+        input.push_back(hash.Calculate(Aws::String(str, pos, TREE_HASH_ONE_MB)).GetResult());
+        pos += TREE_HASH_ONE_MB;
+    }
+
+    return TreeHashFinalCompute(input);
+}
+
+ByteBuffer HashingUtils::CalculateSHA256TreeHash(Aws::IOStream& stream)
+{
+    Sha256 hash;
+    Aws::List<ByteBuffer> input;
+    auto currentPos = stream.tellg();
+    if (currentPos == std::ios::pos_type(-1))
+    {
+        currentPos = 0;
+        stream.clear();
+    }
+    stream.seekg(0, stream.beg);
+    Array<char> streamBuffer(TREE_HASH_ONE_MB);
+    while (stream.good())
+    {
+        stream.read(streamBuffer.GetUnderlyingData(), TREE_HASH_ONE_MB);
+        auto bytesRead = stream.gcount();
+        if (bytesRead > 0)
+        {
+            input.push_back(hash.Calculate(Aws::String(reinterpret_cast<char*>(streamBuffer.GetUnderlyingData()), static_cast<size_t>(bytesRead))).GetResult());
+        }
+    }
+    stream.clear();
+    stream.seekg(currentPos, stream.beg);
+
+    if (input.size() == 0)
+    {
+        return hash.Calculate("").GetResult();
+    }
+    return TreeHashFinalCompute(input);
+}
+
+Aws::String HashingUtils::HexEncode(const ByteBuffer& message)
+{
+    Aws::String encoded;
+    encoded.reserve(2 * message.GetLength());
+
+    for (unsigned i = 0; i < message.GetLength(); ++i)
+    {
+        encoded.push_back("0123456789abcdef"[message[i] >> 4]);
+        encoded.push_back("0123456789abcdef"[message[i] & 0x0f]);
+    }
+
+    return encoded;
+}
+
+ByteBuffer HashingUtils::HexDecode(const Aws::String& str)
+{
+    //number of characters should be even
+    assert(str.length() % 2 == 0);
+    assert(str.length() >= 2);
+
+    if(str.length() < 2 || str.length() % 2 != 0)
+    {
+        return ByteBuffer();
+    }
+
+    size_t strLength = str.length();
+    size_t readIndex = 0;
+
+    if(str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
+    {
+        strLength -= 2;
+        readIndex = 2;
+    }
+
+    ByteBuffer hexBuffer(strLength / 2);
+    size_t bufferIndex = 0;
+
+    for (size_t i = readIndex; i < str.length(); i += 2)
+    {
+        if(!StringUtils::IsAlnum(str[i]) || !StringUtils::IsAlnum(str[i + 1]))
+        {
+            //contains non-hex characters
+            assert(0);
+        }
+
+        char firstChar = str[i];
+        uint8_t distance = firstChar - '0';
+
+        if(isalpha(firstChar))
+        {
+            firstChar = static_cast<char>(toupper(firstChar));
+            distance = firstChar - 'A' + 10;
+        }
+
+        unsigned char val = distance * 16;
+
+        char secondChar = str[i + 1];
+        distance = secondChar - '0';
+
+        if(isalpha(secondChar))
+        {
+            secondChar = static_cast<char>(toupper(secondChar));
+            distance = secondChar - 'A' + 10;
+        }
+
+        val += distance;
+        hexBuffer[bufferIndex++] = val;
+    }
+
+    return hexBuffer;
+}
+
+ByteBuffer HashingUtils::CalculateMD5(const Aws::String& str)
+{
+    MD5 hash;
+    return hash.Calculate(str).GetResult();
+}
+
+ByteBuffer HashingUtils::CalculateMD5(Aws::IOStream& stream)
+{
+    MD5 hash;
+    return hash.Calculate(stream).GetResult();
+}
+
+int HashingUtils::HashString(const char* strToHash)
+{
+    if (!strToHash)
+        return 0;
+
+    unsigned hash = 0;
+    while (char charValue = *strToHash++)
+    {
+        hash = charValue + 31 * hash;    
+    }
+
+    return hash;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/StringUtils.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/StringUtils.cpp
new file mode 100644
index 0000000000..e1deb3f046
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/StringUtils.cpp
@@ -0,0 +1,421 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <algorithm>
+#include <iomanip>
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+#include <functional>
+
+#ifdef _WIN32
+#include <Windows.h>
+#endif
+
+using namespace Aws::Utils;
+
+void StringUtils::Replace(Aws::String& s, const char* search, const char* replace)
+{
+    if(!search || !replace)
+    {
+        return;
+    }
+
+    size_t replaceLength = strlen(replace);
+    size_t searchLength = strlen(search);
+
+    for (std::size_t pos = 0;; pos += replaceLength)
+    {
+        pos = s.find(search, pos);
+        if (pos == Aws::String::npos)
+            break;
+
+        s.erase(pos, searchLength);
+        s.insert(pos, replace);
+    }
+}
+
+
+Aws::String StringUtils::ToLower(const char* source)
+{
+    Aws::String copy;
+    size_t sourceLength = strlen(source);
+    copy.resize(sourceLength);
+    //appease the latest whims of the VC++ 2017 gods
+    std::transform(source, source + sourceLength, copy.begin(), [](unsigned char c) { return (char)::tolower(c); });
+
+    return copy;
+}
+
+
+Aws::String StringUtils::ToUpper(const char* source)
+{
+    Aws::String copy;
+    size_t sourceLength = strlen(source);
+    copy.resize(sourceLength);
+    //appease the latest whims of the VC++ 2017 gods
+    std::transform(source, source + sourceLength, copy.begin(), [](unsigned char c) { return (char)::toupper(c); });
+
+    return copy;
+}
+
+
+bool StringUtils::CaselessCompare(const char* value1, const char* value2)
+{
+    Aws::String value1Lower = ToLower(value1);
+    Aws::String value2Lower = ToLower(value2);
+
+    return value1Lower == value2Lower;
+}
+
+Aws::Vector<Aws::String> StringUtils::Split(const Aws::String& toSplit, char splitOn)
+{
+    return Split(toSplit, splitOn, SIZE_MAX, SplitOptions::NOT_SET);
+}
+
+Aws::Vector<Aws::String> StringUtils::Split(const Aws::String& toSplit, char splitOn, SplitOptions option)
+{
+    return Split(toSplit, splitOn, SIZE_MAX, option);
+}
+
+Aws::Vector<Aws::String> StringUtils::Split(const Aws::String& toSplit, char splitOn, size_t numOfTargetParts)
+{
+    return Split(toSplit, splitOn, numOfTargetParts, SplitOptions::NOT_SET);
+}
+
+Aws::Vector<Aws::String> StringUtils::Split(const Aws::String& toSplit, char splitOn, size_t numOfTargetParts, SplitOptions option)
+{
+    Aws::Vector<Aws::String> returnValues;
+    Aws::StringStream input(toSplit);
+    Aws::String item;
+
+    while(returnValues.size() < numOfTargetParts - 1 && std::getline(input, item, splitOn))
+    {
+        if (!item.empty() || option == SplitOptions::INCLUDE_EMPTY_ENTRIES)
+        {
+            returnValues.emplace_back(std::move(item));
+        }
+    }
+
+    if (std::getline(input, item, static_cast<char>(EOF)))
+    {
+        if (option != SplitOptions::INCLUDE_EMPTY_ENTRIES)
+        {
+            // Trim all leading delimiters.
+            item.erase(item.begin(), std::find_if(item.begin(), item.end(), [splitOn](int ch) { return ch != splitOn; }));
+            if (!item.empty())
+            {
+                returnValues.emplace_back(std::move(item));
+            }
+        }
+        else
+        {
+            returnValues.emplace_back(std::move(item));
+        }
+
+    }
+    // To handle the case when there are trailing delimiters.
+    else if (!toSplit.empty() && toSplit.back() == splitOn && option == SplitOptions::INCLUDE_EMPTY_ENTRIES)
+    {
+        returnValues.emplace_back();
+    }
+
+    return returnValues;
+}
+
+Aws::Vector<Aws::String> StringUtils::SplitOnLine(const Aws::String& toSplit)
+{
+    Aws::StringStream input(toSplit);
+    Aws::Vector<Aws::String> returnValues;
+    Aws::String item;
+
+    while (std::getline(input, item))
+    {
+        if (item.size() > 0)
+        {
+            returnValues.push_back(item);
+        }
+    }
+
+    return returnValues;
+}
+
+
+Aws::String StringUtils::URLEncode(const char* unsafe)
+{
+    Aws::StringStream escaped;
+    escaped.fill('0');
+    escaped << std::hex << std::uppercase;
+
+    size_t unsafeLength = strlen(unsafe);
+    for (auto i = unsafe, n = unsafe + unsafeLength; i != n; ++i)
+    {
+        char c = *i;
+        if (IsAlnum(c) || c == '-' || c == '_' || c == '.' || c == '~')
+        {
+            escaped << (char)c;
+        }
+        else
+        {
+            //this unsigned char cast allows us to handle unicode characters.
+            escaped << '%' << std::setw(2) << int((unsigned char)c) << std::setw(0);
+        }
+    }
+
+    return escaped.str();
+}
+
+Aws::String StringUtils::UTF8Escape(const char* unicodeString, const char* delimiter)
+{
+    Aws::StringStream escaped;
+    escaped.fill('0');
+    escaped << std::hex << std::uppercase;
+
+    size_t unsafeLength = strlen(unicodeString);
+    for (auto i = unicodeString, n = unicodeString + unsafeLength; i != n; ++i)
+    {
+        int c = *i;
+        if (c >= ' ' && c < 127 )
+        {
+            escaped << (char)c;
+        }
+        else
+        {
+            //this unsigned char cast allows us to handle unicode characters.
+            escaped << delimiter << std::setw(2) << int((unsigned char)c) << std::setw(0);
+        }
+    }
+
+    return escaped.str();
+}
+
+Aws::String StringUtils::URLEncode(double unsafe)
+{
+    char buffer[32];
+#if defined(_MSC_VER) && _MSC_VER < 1900
+    _snprintf_s(buffer, sizeof(buffer), _TRUNCATE, "%g", unsafe);
+#else
+    snprintf(buffer, sizeof(buffer), "%g", unsafe);
+#endif
+
+    return StringUtils::URLEncode(buffer);
+}
+
+
+Aws::String StringUtils::URLDecode(const char* safe)
+{
+    Aws::String unescaped;
+
+    for (; *safe; safe++)
+    {
+        switch(*safe)
+        {
+            case '%':
+            {
+                int hex = 0;
+                auto ch = *++safe;
+                if (ch >= '0' && ch <= '9')
+                {
+                    hex = (ch - '0') * 16;
+                }
+                else if (ch >= 'A' && ch <= 'F')
+                {
+                    hex = (ch - 'A' + 10) * 16;
+                }
+                else if (ch >= 'a' && ch <= 'f')
+                {
+                    hex = (ch - 'a' + 10) * 16;
+                }
+                else
+                {
+                    unescaped.push_back('%');
+                    if (ch == 0)
+                    {
+                        return unescaped;
+                    }
+                    unescaped.push_back(ch);
+                    break;
+                }
+
+                ch = *++safe;
+                if (ch >= '0' && ch <= '9')
+                {
+                    hex += (ch - '0');
+                }
+                else if (ch >= 'A' && ch <= 'F')
+                {
+                    hex += (ch - 'A' + 10);
+                }
+                else if (ch >= 'a' && ch <= 'f')
+                {
+                    hex += (ch - 'a' + 10);
+                }
+                else
+                {
+                    unescaped.push_back('%');
+                    unescaped.push_back(*(safe - 1));
+                    if (ch == 0)
+                    {
+                        return unescaped;
+                    }
+                    unescaped.push_back(ch);
+                    break;
+                }
+
+                unescaped.push_back(char(hex));
+                break;
+            }
+            case '+':
+                unescaped.push_back(' ');
+                break;
+            default:
+                unescaped.push_back(*safe);
+                break;
+        }
+    }
+
+    return unescaped;
+}
+
+static bool IsSpace(int ch)
+{
+    if (ch < -1 || ch > 255)
+    {
+        return false;
+    }
+
+    return ::isspace(ch) != 0;
+}
+
+Aws::String StringUtils::LTrim(const char* source)
+{
+    Aws::String copy(source);
+    copy.erase(copy.begin(), std::find_if(copy.begin(), copy.end(), [](int ch) { return !IsSpace(ch); }));
+    return copy;
+}
+
+// trim from end
+Aws::String StringUtils::RTrim(const char* source)
+{
+    Aws::String copy(source);
+    copy.erase(std::find_if(copy.rbegin(), copy.rend(), [](int ch) { return !IsSpace(ch); }).base(), copy.end());
+    return copy;
+}
+
+// trim from both ends
+Aws::String StringUtils::Trim(const char* source)
+{
+    return LTrim(RTrim(source).c_str());
+}
+
+long long StringUtils::ConvertToInt64(const char* source)
+{
+    if(!source)
+    {
+        return 0;
+    }
+
+#ifdef __ANDROID__
+    return atoll(source);
+#else
+    return std::atoll(source);
+#endif // __ANDROID__
+}
+
+
+long StringUtils::ConvertToInt32(const char* source)
+{
+    if (!source)
+    {
+        return 0;
+    }
+
+    return std::atol(source);
+}
+
+
+bool StringUtils::ConvertToBool(const char* source)
+{
+    if(!source)
+    {
+        return false;
+    }
+
+    Aws::String strValue = ToLower(source);
+    if(strValue == "true" || strValue == "1")
+    {
+        return true;
+    }
+
+    return false;
+}
+
+
+double StringUtils::ConvertToDouble(const char* source)
+{
+    if(!source)
+    {
+        return 0.0;
+    }
+
+    return std::strtod(source, NULL);
+}
+
+#ifdef _WIN32
+
+Aws::WString StringUtils::ToWString(const char* source)
+{
+    const auto len = static_cast<int>(std::strlen(source));
+    Aws::WString outString;
+    outString.resize(len); // there is no way UTF-16 would require _more_ code-points than UTF-8 for the _same_ string
+    const auto result = MultiByteToWideChar(CP_UTF8                             /*CodePage*/,
+                                            0                                   /*dwFlags*/,
+                                            source                              /*lpMultiByteStr*/,
+                                            len                                 /*cbMultiByte*/,
+                                            &outString[0]                       /*lpWideCharStr*/,
+                                            static_cast<int>(outString.length())/*cchWideChar*/);
+    if (!result)
+    {
+        return L"";
+    }
+    outString.resize(result);
+    return outString;
+}
+
+Aws::String StringUtils::FromWString(const wchar_t* source)
+{
+    const auto len = static_cast<int>(std::wcslen(source));
+    Aws::String output;
+    if (int requiredSizeInBytes = WideCharToMultiByte(CP_UTF8 /*CodePage*/,
+                                                      0       /*dwFlags*/,
+                                                      source  /*lpWideCharStr*/,
+                                                      len     /*cchWideChar*/,
+                                                      nullptr /*lpMultiByteStr*/,
+                                                      0       /*cbMultiByte*/,
+                                                      nullptr /*lpDefaultChar*/,
+                                                      nullptr /*lpUsedDefaultChar*/))
+    {
+        output.resize(requiredSizeInBytes);
+    }
+    const auto result = WideCharToMultiByte(CP_UTF8                           /*CodePage*/,
+                                            0                                 /*dwFlags*/,
+                                            source                            /*lpWideCharStr*/,
+                                            len                               /*cchWideChar*/,
+                                            &output[0]                        /*lpMultiByteStr*/,
+                                            static_cast<int>(output.length()) /*cbMultiByte*/,
+                                            nullptr                           /*lpDefaultChar*/,
+                                            nullptr                           /*lpUsedDefaultChar*/);
+    if (!result)
+    {
+        return "";
+    }
+    output.resize(result);
+    return output;
+}
+
+#endif
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/TempFile.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/TempFile.cpp
new file mode 100644
index 0000000000..7bc07266c9
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/TempFile.cpp
@@ -0,0 +1,54 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/FileSystemUtils.h>
+
+#include <aws/core/platform/FileSystem.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        static Aws::String ComputeTempFileName(const char* prefix, const char* suffix)
+        {
+            Aws::String prefixStr;
+
+            if (prefix)
+            {
+                prefixStr = prefix;
+            }
+
+            Aws::String suffixStr;
+
+            if (suffix)
+            {
+                suffixStr = suffix;
+            }
+
+            return prefixStr + Aws::FileSystem::CreateTempFilePath() + suffixStr;
+        }
+
+        TempFile::TempFile(const char* prefix, const char* suffix, std::ios_base::openmode openFlags) :
+            FStreamWithFileName(ComputeTempFileName(prefix, suffix).c_str(), openFlags)
+        {
+        }
+
+        TempFile::TempFile(const char* prefix, std::ios_base::openmode openFlags) :
+            FStreamWithFileName(ComputeTempFileName(prefix, nullptr).c_str(), openFlags)
+        {
+        }
+
+        TempFile::TempFile(std::ios_base::openmode openFlags) :
+            FStreamWithFileName(ComputeTempFileName(nullptr, nullptr).c_str(), openFlags)
+        {
+        }
+
+
+        TempFile::~TempFile()
+        {
+            Aws::FileSystem::RemoveFileIfExists(m_fileName.c_str());
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/UUID.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/UUID.cpp
new file mode 100644
index 0000000000..862f3eacdd
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/UUID.cpp
@@ -0,0 +1,90 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/UUID.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/utils/crypto/Factories.h>
+#include <aws/core/utils/crypto/SecureRandom.h>
+#include <iomanip>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        static const size_t UUID_STR_SIZE = 0x24u; // 36 characters
+        static const size_t VERSION_LOCATION = 0x06u;
+        static const size_t VARIANT_LOCATION = 0x08u;
+        static const unsigned char VERSION = 0x40u;
+        static const unsigned char VERSION_MASK = 0x0Fu;
+        static const unsigned char VARIANT = 0x80u;
+        static const unsigned char VARIANT_MASK = 0x3Fu;
+
+        static void hexify(Aws::String& ss, const unsigned char* toWrite, size_t min, size_t max)
+        {
+            for (size_t i = min; i < max; ++i)
+            {
+                ss.push_back("0123456789ABCDEF"[toWrite[i] >> 4]);
+                ss.push_back("0123456789ABCDEF"[toWrite[i] & 0x0F]);
+            }
+        }
+
+        UUID::UUID(const Aws::String& uuidToConvert)
+        {
+            //GUID has 2 characters per byte + 4 dashes = 36 bytes
+            assert(uuidToConvert.length() == UUID_STR_SIZE);
+            memset(m_uuid, 0, sizeof(m_uuid));
+            Aws::String escapedHexStr(uuidToConvert);
+            StringUtils::Replace(escapedHexStr, "-", "");
+            assert(escapedHexStr.length() == UUID_BINARY_SIZE * 2);
+            ByteBuffer&& rawUuid = HashingUtils::HexDecode(escapedHexStr);
+            memcpy(m_uuid, rawUuid.GetUnderlyingData(), rawUuid.GetLength());
+        }
+
+        UUID::UUID(const unsigned char toCopy[UUID_BINARY_SIZE])
+        {
+            memcpy(m_uuid, toCopy, sizeof(m_uuid));
+        }
+
+        UUID::operator Aws::String() const
+        {
+            Aws::String ss;
+            ss.reserve(UUID_STR_SIZE);
+            hexify(ss, m_uuid, 0, 4);
+            ss.push_back('-');
+
+            hexify(ss, m_uuid, 4, 6);
+            ss.push_back('-');
+
+            hexify(ss, m_uuid, 6, 8);
+            ss.push_back('-');
+
+            hexify(ss, m_uuid, 8, 10);
+            ss.push_back('-');
+
+            hexify(ss, m_uuid, 10, 16);
+
+            return ss;
+        }
+
+        UUID UUID::RandomUUID()
+        {
+            auto secureRandom = Crypto::CreateSecureRandomBytesImplementation();
+            assert(secureRandom);
+
+            unsigned char randomBytes[UUID_BINARY_SIZE];
+            memset(randomBytes, 0, UUID_BINARY_SIZE);
+            secureRandom->GetBytes(randomBytes, UUID_BINARY_SIZE);
+            //Set version bits to 0100
+            //https://tools.ietf.org/html/rfc4122#section-4.1.3
+            randomBytes[VERSION_LOCATION] = (randomBytes[VERSION_LOCATION] & VERSION_MASK) | VERSION;
+            //set variant bits to 10
+            //https://tools.ietf.org/html/rfc4122#section-4.1.1
+            randomBytes[VARIANT_LOCATION] = (randomBytes[VARIANT_LOCATION] & VARIANT_MASK) | VARIANT;
+
+            return UUID(randomBytes);
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/base64/Base64.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/base64/Base64.cpp
new file mode 100644
index 0000000000..2103d6d5a6
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/base64/Base64.cpp
@@ -0,0 +1,148 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/base64/Base64.h>
+#include <cstring>
+
+using namespace Aws::Utils::Base64;
+
+static const uint8_t SENTINEL_VALUE = 255;
+static const char BASE64_ENCODING_TABLE_MIME[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Base64
+{
+
+Base64::Base64(const char *encodingTable)
+{
+    if(encodingTable == nullptr)
+    {
+        encodingTable = BASE64_ENCODING_TABLE_MIME;
+    }
+
+    size_t encodingTableLength = strlen(encodingTable);
+    if(encodingTableLength != 64)
+    {
+        encodingTable = BASE64_ENCODING_TABLE_MIME;
+        encodingTableLength = 64;
+    }
+
+    memcpy(m_mimeBase64EncodingTable, encodingTable, encodingTableLength);
+
+    memset((void *)m_mimeBase64DecodingTable, 0, 256);
+
+    for(uint32_t i = 0; i < encodingTableLength; ++i)
+    {
+        uint32_t index = static_cast<uint32_t>(m_mimeBase64EncodingTable[i]);
+        m_mimeBase64DecodingTable[index] = static_cast<uint8_t>(i);
+    }
+
+    m_mimeBase64DecodingTable[(uint32_t)'='] = SENTINEL_VALUE;
+}
+
+Aws::String Base64::Encode(const Aws::Utils::ByteBuffer& buffer) const
+{
+    size_t bufferLength = buffer.GetLength();
+    size_t blockCount = (bufferLength + 2) / 3;
+    size_t remainderCount = (bufferLength % 3);
+
+    Aws::String outputString;
+    outputString.reserve(CalculateBase64EncodedLength(buffer));
+
+    for(size_t i = 0; i < bufferLength; i += 3 )
+    {
+        uint32_t block = buffer[ i ];
+
+        block <<= 8;
+        if (i + 1 < bufferLength)
+        {
+            block = block | buffer[ i + 1 ];
+        }
+
+        block <<= 8;
+        if (i + 2 < bufferLength)
+        {
+            block = block | buffer[ i + 2 ];
+        }
+
+        outputString.push_back(m_mimeBase64EncodingTable[(block >> 18) & 0x3F]);
+        outputString.push_back(m_mimeBase64EncodingTable[(block >> 12) & 0x3F]);
+        outputString.push_back(m_mimeBase64EncodingTable[(block >> 6) & 0x3F]);
+        outputString.push_back(m_mimeBase64EncodingTable[block & 0x3F]);
+    }
+
+    if(remainderCount > 0)
+    {
+        outputString[blockCount * 4 - 1] = '=';
+        if(remainderCount == 1)
+        {
+            outputString[blockCount * 4 - 2] = '=';
+        }
+    }
+
+    return outputString;
+}
+
+Aws::Utils::ByteBuffer Base64::Decode(const Aws::String& str) const
+{
+    size_t decodedLength = CalculateBase64DecodedLength(str);
+
+    Aws::Utils::ByteBuffer buffer(decodedLength);
+
+    const char* rawString = str.c_str();
+    size_t blockCount = str.length() / 4;
+    for(size_t i = 0; i < blockCount; ++i)
+    {
+        size_t stringIndex = i * 4;
+
+        uint32_t value1 = m_mimeBase64DecodingTable[uint32_t(rawString[stringIndex])];
+        uint32_t value2 = m_mimeBase64DecodingTable[uint32_t(rawString[++stringIndex])];
+        uint32_t value3 = m_mimeBase64DecodingTable[uint32_t(rawString[++stringIndex])];
+        uint32_t value4 = m_mimeBase64DecodingTable[uint32_t(rawString[++stringIndex])];
+
+        size_t bufferIndex = i * 3;
+        buffer[bufferIndex] = static_cast<uint8_t>((value1 << 2) | ((value2 >> 4) & 0x03));
+        if(value3 != SENTINEL_VALUE)
+        {
+            buffer[++bufferIndex] = static_cast<uint8_t>(((value2 << 4) & 0xF0) | ((value3 >> 2) & 0x0F));
+            if(value4 != SENTINEL_VALUE)
+            {
+                buffer[++bufferIndex] = static_cast<uint8_t>((value3 & 0x03) << 6 | value4);
+            }
+        }
+    }
+
+    return buffer;
+}
+
+size_t Base64::CalculateBase64DecodedLength(const Aws::String& b64input)
+{
+    const size_t len = b64input.length();
+    if(len < 2)
+    {
+        return 0;
+    }
+
+    size_t padding = 0;
+
+    if (b64input[len - 1] == '=' && b64input[len - 2] == '=') //last two chars are =
+        padding = 2;
+    else if (b64input[len - 1] == '=') //last char is =
+        padding = 1;
+
+    return (len * 3 / 4 - padding);
+}
+
+size_t Base64::CalculateBase64EncodedLength(const Aws::Utils::ByteBuffer& buffer)
+{
+    return 4 * ((buffer.GetLength() + 2) / 3);
+}
+
+} // namespace Base64
+} // namespace Utils
+} // namespace Aws
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Cipher.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Cipher.cpp
new file mode 100644
index 0000000000..1c844273f4
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Cipher.cpp
@@ -0,0 +1,123 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/crypto/Cipher.h>
+#include <aws/core/utils/crypto/Factories.h>
+#include <aws/core/utils/crypto/SecureRandom.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <cstdlib>
+#include <climits>
+
+//if you are reading this, you are witnessing pure brilliance.
+#define IS_BIG_ENDIAN (*(uint16_t*)"\0\xff" < 0x100)
+
+using namespace Aws::Utils::Crypto;
+using namespace Aws::Utils;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            static const char* LOG_TAG = "Cipher";
+
+            //swap byte ordering
+            template<class T>
+            typename std::enable_if<std::is_unsigned<T>::value, T>::type
+            bswap(T i, T j = 0u, std::size_t n = 0u)
+            {
+                return n == sizeof(T) ? j :
+                    bswap<T>(i >> CHAR_BIT, (j << CHAR_BIT) | (i & (T)(unsigned char)(-1)), n + 1);
+            }
+
+            CryptoBuffer IncrementCTRCounter(const CryptoBuffer& counter, uint32_t numberOfBlocks)
+            {
+                // minium counter size is 12 bytes. This isn't a variable because some compilers
+                // are stupid and thing that variable is unused.
+                assert(counter.GetLength() >= 12);
+
+                CryptoBuffer incrementedCounter(counter);
+
+                //get the last 4 bytes and manipulate them as an integer.
+                uint32_t* ctrPtr = (uint32_t*)(incrementedCounter.GetUnderlyingData() + incrementedCounter.GetLength() - sizeof(int32_t));
+                if(IS_BIG_ENDIAN)
+                {
+                    //you likely are not Big Endian, but
+                    //if it's big endian, just go ahead and increment it... done
+                    *ctrPtr += numberOfBlocks;
+                }
+                else
+                {
+                    //otherwise, swap the byte ordering of the integer we loaded from the buffer (because it is backwards). However, the number of blocks is already properly
+                    //aligned. Once we compute the new value, swap it back so that the mirroring operation goes back to the actual buffer.
+                    *ctrPtr = bswap<uint32_t>(bswap<uint32_t>(*ctrPtr) + numberOfBlocks);
+                }
+
+                return incrementedCounter;
+            }
+
+            CryptoBuffer GenerateXRandomBytes(size_t lengthBytes, bool ctrMode)
+            {
+                std::shared_ptr<SecureRandomBytes> rng = CreateSecureRandomBytesImplementation();
+
+                CryptoBuffer bytes(lengthBytes);
+                size_t lengthToGenerate = ctrMode ? (3 * bytes.GetLength())  / 4 : bytes.GetLength();
+
+                rng->GetBytes(bytes.GetUnderlyingData(), lengthToGenerate);
+
+                if(!*rng)
+                {
+                    AWS_LOGSTREAM_FATAL(LOG_TAG, "Random Number generation failed. Abort all crypto operations.");
+                    assert(false);
+                    abort();
+                }
+
+                return bytes;
+            }
+
+            /**
+             * Generate random number per 4 bytes and use each byte for the byte in the iv
+             */
+            CryptoBuffer SymmetricCipher::GenerateIV(size_t ivLengthBytes, bool ctrMode)
+            {
+                CryptoBuffer iv(GenerateXRandomBytes(ivLengthBytes, ctrMode));
+
+                if(iv.GetLength() == 0)
+                {
+                    AWS_LOGSTREAM_ERROR(LOG_TAG, "Unable to generate iv of length " << ivLengthBytes);
+                    return iv;
+                }
+
+                if(ctrMode)
+                {
+                    //init the counter
+                    size_t length = iv.GetLength();
+                    //[ nonce 1/4] [ iv 1/2 ] [ ctr 1/4 ]
+                    size_t ctrStart = (length / 2) + (length / 4);
+                    for(; ctrStart < iv.GetLength() - 1; ++ ctrStart)
+                    {
+                        iv[ctrStart] = 0;
+                    }
+                    iv[length - 1] = 1;
+                }
+
+                return iv;
+            }
+
+            CryptoBuffer SymmetricCipher::GenerateKey(size_t keyLengthBytes)
+            {
+                CryptoBuffer const& key = GenerateXRandomBytes(keyLengthBytes, false);
+
+                if(key.GetLength() == 0)
+                {
+                    AWS_LOGSTREAM_ERROR(LOG_TAG, "Unable to generate key of length " << keyLengthBytes);
+                }
+
+                return key;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoMaterial.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoMaterial.cpp
new file mode 100644
index 0000000000..3036bd70eb
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoMaterial.cpp
@@ -0,0 +1,34 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/crypto/ContentCryptoMaterial.h>
+#include <aws/core/utils/crypto/Cipher.h>
+
+using namespace Aws::Utils::Crypto;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            ContentCryptoMaterial::ContentCryptoMaterial() :
+                m_cryptoTagLength(0), m_keyWrapAlgorithm(KeyWrapAlgorithm::NONE), m_contentCryptoScheme(ContentCryptoScheme::NONE)
+            {
+            }
+
+            ContentCryptoMaterial::ContentCryptoMaterial(ContentCryptoScheme contentCryptoScheme) :
+                m_contentEncryptionKey(SymmetricCipher::GenerateKey()), m_cryptoTagLength(0), m_keyWrapAlgorithm(KeyWrapAlgorithm::NONE), m_contentCryptoScheme(contentCryptoScheme)
+            {
+
+            }
+
+            ContentCryptoMaterial::ContentCryptoMaterial(const Aws::Utils::CryptoBuffer & cek, ContentCryptoScheme contentCryptoScheme) :
+                m_contentEncryptionKey(cek), m_cryptoTagLength(0), m_keyWrapAlgorithm(KeyWrapAlgorithm::NONE), m_contentCryptoScheme(contentCryptoScheme)
+            {
+
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoScheme.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoScheme.cpp
new file mode 100644
index 0000000000..f39a75df2c
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/ContentCryptoScheme.cpp
@@ -0,0 +1,61 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/crypto/ContentCryptoScheme.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/EnumParseOverflowContainer.h>
+#include <aws/core/Globals.h>
+
+using namespace Aws::Utils;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            namespace ContentCryptoSchemeMapper
+            {
+                static const int cryptoScheme_CBC_HASH = HashingUtils::HashString("AES/CBC/PKCS5Padding");
+                static const int cryptoScheme_CTR_HASH = HashingUtils::HashString("AES/CTR/NoPadding");
+                static const int cryptoScheme_GCM_HASH = HashingUtils::HashString("AES/GCM/NoPadding");
+
+                ContentCryptoScheme GetContentCryptoSchemeForName(const Aws::String& name)
+                {
+                    int hashcode = HashingUtils::HashString(name.c_str());
+                    if (hashcode == cryptoScheme_CBC_HASH)
+                    {
+                        return ContentCryptoScheme::CBC;
+                    }
+                    else if (hashcode == cryptoScheme_CTR_HASH)
+                    {
+                        return ContentCryptoScheme::CTR;
+                    }
+                    else if (hashcode == cryptoScheme_GCM_HASH)
+                    {
+                        return ContentCryptoScheme::GCM;
+                    }
+                    assert(0);
+                    return ContentCryptoScheme::NONE;
+                }
+
+                Aws::String GetNameForContentCryptoScheme(ContentCryptoScheme enumValue)
+                {
+                    switch (enumValue)
+                    {
+                    case ContentCryptoScheme::CBC:
+                        return "AES/CBC/PKCS5Padding";
+                    case ContentCryptoScheme::CTR:
+                        return "AES/CTR/NoPadding";
+                    case ContentCryptoScheme::GCM:
+                        return "AES/GCM/NoPadding";
+                    default:
+                        assert(0);
+                        return "";
+                    }
+                }
+            }//namespace ContentCryptoSchemeMapper
+        } //namespace Crypto
+    }//namespace Utils
+}//namespace Aws
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoBuf.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoBuf.cpp
new file mode 100644
index 0000000000..2b47097679
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoBuf.cpp
@@ -0,0 +1,348 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/crypto/CryptoBuf.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            SymmetricCryptoBufSrc::SymmetricCryptoBufSrc(Aws::IStream& stream, SymmetricCipher& cipher, CipherMode cipherMode, size_t bufferSize)
+                    :
+                    m_isBuf(PUT_BACK_SIZE), m_cipher(cipher), m_stream(stream), m_cipherMode(cipherMode), m_isFinalized(false),
+                    m_bufferSize(bufferSize), m_putBack(PUT_BACK_SIZE)
+            {
+                char* end = reinterpret_cast<char*>(m_isBuf.GetUnderlyingData() + m_isBuf.GetLength());
+                setg(end, end, end);
+            }
+
+            SymmetricCryptoBufSrc::pos_type SymmetricCryptoBufSrc::seekoff(off_type off, std::ios_base::seekdir dir, std::ios_base::openmode which)
+            {
+                if(which == std::ios_base::in)
+                {
+                    auto curPos = m_stream.tellg();
+                    //error on seek we may have read past the end already. Try resetting and seeking to the end first
+                    if (curPos == pos_type(-1))
+                    {
+                        m_stream.clear();
+                        m_stream.seekg(0, std::ios_base::end);
+                        curPos = m_stream.tellg();
+                    }
+
+                    auto absPosition = ComputeAbsSeekPosition(off, dir, curPos);
+                    size_t seekTo = static_cast<size_t>(absPosition);
+                    size_t index = static_cast<size_t>(curPos);
+
+                    if(index == seekTo)
+                    {
+                        return curPos;
+                    }
+                    else if (seekTo < index)
+                    {
+                        m_cipher.Reset();
+                        m_stream.clear();
+                        m_stream.seekg(0);
+                        m_isFinalized = false;
+                        index = 0;
+                    }
+
+                    CryptoBuffer cryptoBuffer;
+                    while (m_cipher && index < seekTo && !m_isFinalized)
+                    {
+                        size_t max_read = std::min<size_t>(static_cast<size_t>(seekTo - index), m_bufferSize);
+
+                        Aws::Utils::Array<char> buf(max_read);
+                        size_t readSize(0);
+                        if(m_stream)
+                        {
+                            m_stream.read(buf.GetUnderlyingData(), max_read);
+                            readSize = static_cast<size_t>(m_stream.gcount());
+                        }
+
+                        if (readSize > 0)
+                        {
+                            if (m_cipherMode == CipherMode::Encrypt)
+                            {
+                                cryptoBuffer = m_cipher.EncryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(buf.GetUnderlyingData()), readSize));
+                            }
+                            else
+                            {
+                                cryptoBuffer = m_cipher.DecryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(buf.GetUnderlyingData()), readSize));
+                            }
+                        }
+                        else
+                        {
+                            if (m_cipherMode == CipherMode::Encrypt)
+                            {
+                                cryptoBuffer = m_cipher.FinalizeEncryption();
+                            }
+                            else
+                            {
+                                cryptoBuffer = m_cipher.FinalizeDecryption();
+                            }
+
+                            m_isFinalized = true;
+                        }
+
+                        index += cryptoBuffer.GetLength();
+                    }
+
+                    if (cryptoBuffer.GetLength() && m_cipher)
+                    {
+                        CryptoBuffer putBackArea(m_putBack);
+
+                        m_isBuf = CryptoBuffer({&putBackArea, &cryptoBuffer});
+                        //in the very unlikely case that the cipher had less output than the source stream.
+                        assert(seekTo <= index);
+                        size_t newBufferPos = index > seekTo ? cryptoBuffer.GetLength() - (index - seekTo) : cryptoBuffer.GetLength();
+                        char* baseBufPtr = reinterpret_cast<char*>(m_isBuf.GetUnderlyingData());
+                        setg(baseBufPtr, baseBufPtr + m_putBack + newBufferPos, baseBufPtr + m_isBuf.GetLength());
+
+                        return pos_type(seekTo);
+                    }
+                    else if (seekTo == 0)
+                    {
+                        m_isBuf = CryptoBuffer(m_putBack);
+                        char* end = reinterpret_cast<char*>(m_isBuf.GetUnderlyingData() + m_isBuf.GetLength());
+                        setg(end, end, end);
+                        return pos_type(seekTo);
+                    }
+                }
+
+                return pos_type(off_type(-1));
+            }
+
+            SymmetricCryptoBufSrc::pos_type SymmetricCryptoBufSrc::seekpos(pos_type pos, std::ios_base::openmode which)
+            {
+                return seekoff(pos, std::ios_base::beg, which);
+            }
+
+            SymmetricCryptoBufSrc::int_type SymmetricCryptoBufSrc::underflow()
+            {
+                if (!m_cipher || (m_isFinalized && gptr() >= egptr()))
+                {
+                    return traits_type::eof();
+                }
+
+                if (gptr() < egptr())
+                {
+                    return traits_type::to_int_type(*gptr());
+                }
+
+                char* baseBufPtr = reinterpret_cast<char*>(m_isBuf.GetUnderlyingData());
+                CryptoBuffer putBackArea(m_putBack);
+
+                //eback is properly set after the first fill. So this guarantees we are on the second or later fill.
+                if (eback() == baseBufPtr)
+                {
+                    //just fill in the last bit of the previous buffer into the put back area so that it has some data in it
+                    memcpy(putBackArea.GetUnderlyingData(), egptr() - m_putBack, m_putBack);
+                }
+
+                CryptoBuffer newDataBuf;
+
+                while(!newDataBuf.GetLength() && !m_isFinalized)
+                {
+                    Aws::Utils::Array<char> buf(m_bufferSize);
+                    m_stream.read(buf.GetUnderlyingData(), m_bufferSize);
+                    size_t readSize = static_cast<size_t>(m_stream.gcount());
+
+                    if (readSize > 0)
+                    {
+                        if (m_cipherMode == CipherMode::Encrypt)
+                        {
+                            newDataBuf = m_cipher.EncryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(buf.GetUnderlyingData()), readSize));
+                        }
+                        else
+                        {
+                            newDataBuf = m_cipher.DecryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(buf.GetUnderlyingData()), readSize));
+                        }
+                    }
+                    else
+                    {
+                        if (m_cipherMode == CipherMode::Encrypt)
+                        {
+                            newDataBuf = m_cipher.FinalizeEncryption();
+                        }
+                        else
+                        {
+                            newDataBuf = m_cipher.FinalizeDecryption();
+                        }
+
+                        m_isFinalized = true;
+                    }
+                }
+
+
+                if(newDataBuf.GetLength() > 0)
+                {
+                    m_isBuf = CryptoBuffer({&putBackArea, &newDataBuf});
+
+                    baseBufPtr = reinterpret_cast<char*>(m_isBuf.GetUnderlyingData());
+                    setg(baseBufPtr, baseBufPtr + m_putBack, baseBufPtr + m_isBuf.GetLength());
+
+                    return traits_type::to_int_type(*gptr());
+                }
+
+                return traits_type::eof();
+            }
+
+            SymmetricCryptoBufSrc::off_type SymmetricCryptoBufSrc::ComputeAbsSeekPosition(off_type pos, std::ios_base::seekdir dir,  std::fpos<FPOS_TYPE> curPos)
+            {
+                switch(dir)
+                {
+                case std::ios_base::beg:
+                    return pos;
+                case std::ios_base::cur:
+                    return m_stream.tellg() + pos;
+                case std::ios_base::end:
+                {
+                    off_type absPos = m_stream.seekg(0, std::ios_base::end).tellg() - pos;
+                    m_stream.seekg(curPos);
+                    return absPos;
+                }
+                default:
+                    assert(0);
+                    return off_type(-1);
+                }
+            }
+
+            void SymmetricCryptoBufSrc::FinalizeCipher()
+            {
+                if(m_cipher && !m_isFinalized)
+                {
+                    if(m_cipherMode == CipherMode::Encrypt)
+                    {
+                        m_cipher.FinalizeEncryption();
+                    }
+                    else
+                    {
+                        m_cipher.FinalizeDecryption();
+                    }
+                }
+            }
+
+            SymmetricCryptoBufSink::SymmetricCryptoBufSink(Aws::OStream& stream, SymmetricCipher& cipher, CipherMode cipherMode, size_t bufferSize, int16_t blockOffset)
+                    :
+                    m_osBuf(bufferSize), m_cipher(cipher), m_stream(stream), m_cipherMode(cipherMode), m_isFinalized(false), m_blockOffset(blockOffset)
+            {
+                assert(m_blockOffset < 16 && m_blockOffset >= 0);
+                char* outputBase = reinterpret_cast<char*>(m_osBuf.GetUnderlyingData());
+                setp(outputBase, outputBase + bufferSize - 1);
+            }
+
+            SymmetricCryptoBufSink::~SymmetricCryptoBufSink()
+            {
+                FinalizeCiphersAndFlushSink();
+            }
+
+            void SymmetricCryptoBufSink::FinalizeCiphersAndFlushSink()
+            {
+                if(m_cipher && !m_isFinalized)
+                {
+                    writeOutput(true);
+                }
+            }
+
+            bool SymmetricCryptoBufSink::writeOutput(bool finalize)
+            {
+                if(!m_isFinalized)
+                {
+                    CryptoBuffer cryptoBuf;
+                    if (pptr() > pbase())
+                    {
+                        if (m_cipherMode == CipherMode::Encrypt)
+                        {
+                            cryptoBuf = m_cipher.EncryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(pbase()), pptr() - pbase()));
+                        }
+                        else
+                        {
+                            cryptoBuf = m_cipher.DecryptBuffer(CryptoBuffer(reinterpret_cast<unsigned char*>(pbase()), pptr() - pbase()));
+                        }
+
+                        pbump(-(static_cast<int>(pptr() - pbase())));
+                    }
+                    if(finalize)
+                    {
+                        CryptoBuffer finalBuffer;
+                        if (m_cipherMode == CipherMode::Encrypt)
+                        {
+                            finalBuffer = m_cipher.FinalizeEncryption();
+                        }
+                        else
+                        {
+                            finalBuffer = m_cipher.FinalizeDecryption();
+                        }
+                        if(cryptoBuf.GetLength())
+                        {
+                            cryptoBuf = CryptoBuffer({&cryptoBuf, &finalBuffer});
+                        }
+                        else
+                        {
+                            cryptoBuf = std::move(finalBuffer);
+                        }
+
+                        m_isFinalized = true;
+                    }
+
+                    if (m_cipher)
+                    {
+                        if(cryptoBuf.GetLength())
+                        {
+                            //allow mid block decryption. We have to decrypt it, but we don't have to write it to the stream.
+                            //the assumption here is that tellp() will always be 0 or >= 16 bytes. The block offset should only
+                            //be the offset of the first block read.
+                            size_t len = cryptoBuf.GetLength();
+                            size_t blockOffset = m_stream.tellp() > m_blockOffset ? 0 : m_blockOffset;
+                            if (len > blockOffset)
+                            {
+                                m_stream.write(reinterpret_cast<char*>(cryptoBuf.GetUnderlyingData() + blockOffset), len - blockOffset);
+                                m_blockOffset = 0;
+                            }
+                            else
+                            {
+                                m_blockOffset -= static_cast<int16_t>(len);
+                            }
+                        }
+                        return true;
+                    }
+                }
+
+                return false;
+            }
+
+            SymmetricCryptoBufSink::int_type SymmetricCryptoBufSink::overflow(int_type ch)
+            {
+                if(m_cipher && m_stream)
+                {
+                    if(ch != traits_type::eof())
+                    {
+                        *pptr() = (char)ch;
+                        pbump(1);
+                    }
+
+                    if(writeOutput(ch == traits_type::eof()))
+                    {
+                        return ch;
+                    }
+                }
+
+                return traits_type::eof();
+            }
+
+            int SymmetricCryptoBufSink::sync()
+            {
+                if(m_cipher && m_stream)
+                {
+                    return writeOutput(false) ? 0 : -1;
+                }
+
+                return -1;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoStream.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoStream.cpp
new file mode 100644
index 0000000000..2d645f7427
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/CryptoStream.cpp
@@ -0,0 +1,52 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/crypto/CryptoStream.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            static const char* CLASS_TAG = "Aws::Utils::Crypto::SymmetricCryptoStream";
+
+            SymmetricCryptoStream::SymmetricCryptoStream(Aws::IStream& src, CipherMode mode, SymmetricCipher& cipher, size_t bufSize) :
+                Aws::IOStream(m_cryptoBuf = Aws::New<SymmetricCryptoBufSrc>(CLASS_TAG, src, cipher, mode, bufSize)), m_hasOwnership(true)
+            {
+            }
+
+            SymmetricCryptoStream::SymmetricCryptoStream(Aws::OStream& sink, CipherMode mode, SymmetricCipher& cipher, size_t bufSize, int16_t blockOffset) :
+                    Aws::IOStream(m_cryptoBuf = Aws::New<SymmetricCryptoBufSink>(CLASS_TAG, sink, cipher, mode, bufSize, blockOffset)), m_hasOwnership(true)
+            {
+            }
+
+            SymmetricCryptoStream::SymmetricCryptoStream(Aws::Utils::Crypto::SymmetricCryptoBufSrc& bufSrc) :
+                    Aws::IOStream(&bufSrc), m_cryptoBuf(&bufSrc), m_hasOwnership(false)
+            {
+            }
+
+            SymmetricCryptoStream::SymmetricCryptoStream(Aws::Utils::Crypto::SymmetricCryptoBufSink& bufSink) :
+                    Aws::IOStream(&bufSink), m_cryptoBuf(&bufSink), m_hasOwnership(false)
+            {
+            }
+
+            SymmetricCryptoStream::~SymmetricCryptoStream()
+            {
+                Finalize();
+
+                if(m_hasOwnership && m_cryptoBuf)
+                {
+                    Aws::Delete(m_cryptoBuf);
+                }
+            }
+
+            void SymmetricCryptoStream::Finalize()
+            {
+                assert(m_cryptoBuf);
+                m_cryptoBuf->Finalize();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/EncryptionMaterials.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/EncryptionMaterials.cpp
new file mode 100644
index 0000000000..d000c86baa
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/EncryptionMaterials.cpp
@@ -0,0 +1,19 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/crypto/EncryptionMaterials.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            //this is here to force the linker to behave correctly since this is an interface that will need to cross the dll 
+            //boundary.
+            EncryptionMaterials::~EncryptionMaterials()
+            {}
+        }
+    }
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/KeyWrapAlgorithm.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/KeyWrapAlgorithm.cpp
new file mode 100644
index 0000000000..b9e098775c
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/KeyWrapAlgorithm.cpp
@@ -0,0 +1,68 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/crypto/KeyWrapAlgorithm.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/EnumParseOverflowContainer.h>
+#include <aws/core/Globals.h>
+
+using namespace Aws::Utils;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            namespace KeyWrapAlgorithmMapper
+            {
+                static const int keyWrapAlgorithm_KMS_HASH = HashingUtils::HashString("kms");
+                static const int keyWrapAlgorithm_KMS_CONTEXT_HASH = HashingUtils::HashString("kms+context");
+                static const int keyWrapAlgorithm_KeyWrap_HASH = HashingUtils::HashString("AESWrap");
+                static const int keyWrapAlgorithm_AES_GCM_HASH = HashingUtils::HashString("AES/GCM");
+
+                KeyWrapAlgorithm GetKeyWrapAlgorithmForName(const Aws::String& name)
+                {
+                    int hashcode = HashingUtils::HashString(name.c_str());
+                    if (hashcode == keyWrapAlgorithm_KMS_HASH)
+                    {
+                        return KeyWrapAlgorithm::KMS;
+                    }
+                    else if (hashcode == keyWrapAlgorithm_KMS_CONTEXT_HASH) 
+                    {
+                        return KeyWrapAlgorithm::KMS_CONTEXT;
+                    }
+                    else if (hashcode == keyWrapAlgorithm_KeyWrap_HASH)
+                    {
+                        return KeyWrapAlgorithm::AES_KEY_WRAP;
+                    } 
+                    else if (hashcode == keyWrapAlgorithm_AES_GCM_HASH)
+                    {
+                        return KeyWrapAlgorithm::AES_GCM;
+                    }
+                    assert(0);
+                    return KeyWrapAlgorithm::NONE;
+                }
+
+                Aws::String GetNameForKeyWrapAlgorithm(KeyWrapAlgorithm enumValue)
+                {
+                    switch (enumValue)
+                    {
+                    case KeyWrapAlgorithm::KMS:
+                        return "kms";
+                    case KeyWrapAlgorithm::KMS_CONTEXT:
+                        return "kms+context";
+                    case KeyWrapAlgorithm::AES_KEY_WRAP:
+                        return "AESWrap";
+                    case KeyWrapAlgorithm::AES_GCM:
+                        return "AES/GCM";
+                    default:
+                        assert(0);
+                    }
+                    return "";
+                }
+            }//namespace KeyWrapAlgorithmMapper
+        }//namespace Crypto
+    }//namespace Utils
+}//namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/MD5.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/MD5.cpp
new file mode 100644
index 0000000000..bf14ace1ad
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/MD5.cpp
@@ -0,0 +1,31 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/crypto/MD5.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/utils/crypto/Factories.h>
+
+using namespace Aws::Utils::Crypto;
+
+
+MD5::MD5() : 
+    m_hashImpl(CreateMD5Implementation())
+{
+}
+
+MD5::~MD5()
+{
+}
+
+HashResult MD5::Calculate(const Aws::String& str)
+{
+    return m_hashImpl->Calculate(str);
+}
+
+HashResult MD5::Calculate(Aws::IStream& stream)
+{
+    return m_hashImpl->Calculate(stream);
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256.cpp
new file mode 100644
index 0000000000..178df00d37
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256.cpp
@@ -0,0 +1,30 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/crypto/Sha256.h>
+#include <aws/core/utils/Outcome.h>
+#include <aws/core/utils/crypto/Factories.h>
+
+using namespace Aws::Utils::Crypto;
+
+Sha256::Sha256() : 
+    m_hashImpl(CreateSha256Implementation())
+{
+}
+
+Sha256::~Sha256()
+{
+}
+
+HashResult Sha256::Calculate(const Aws::String& str)
+{
+    return m_hashImpl->Calculate(str);
+}
+
+HashResult Sha256::Calculate(Aws::IStream& stream)
+{
+    return m_hashImpl->Calculate(stream);
+}
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256HMAC.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256HMAC.cpp
new file mode 100644
index 0000000000..ecc1f06529
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/Sha256HMAC.cpp
@@ -0,0 +1,34 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/crypto/Sha256HMAC.h>
+#include <aws/core/utils/crypto/Factories.h>
+#include <aws/core/utils/Outcome.h>
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Crypto
+{
+
+Sha256HMAC::Sha256HMAC() : 
+    m_hmacImpl(CreateSha256HMACImplementation())
+{
+}
+
+Sha256HMAC::~Sha256HMAC()
+{
+}
+
+HashResult Sha256HMAC::Calculate(const Aws::Utils::ByteBuffer& toSign, const Aws::Utils::ByteBuffer& secret)
+{
+    return m_hmacImpl->Calculate(toSign, secret);
+}
+
+} // namespace Crypto
+} // namespace Utils
+} // namespace Aws
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/factory/Factories.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/factory/Factories.cpp
new file mode 100644
index 0000000000..bff0382241
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/factory/Factories.cpp
@@ -0,0 +1,895 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/crypto/Factories.h>
+#include <aws/core/utils/crypto/Hash.h>
+#include <aws/core/utils/crypto/HMAC.h>
+
+#if ENABLE_BCRYPT_ENCRYPTION
+    #error #include <aws/core/utils/crypto/bcrypt/CryptoImpl.h>
+#elif ENABLE_OPENSSL_ENCRYPTION
+    #include <aws/core/utils/crypto/openssl/CryptoImpl.h>
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+    #error #include <aws/core/utils/crypto/commoncrypto/CryptoImpl.h>
+    #include <aws/core/utils/logging/LogMacros.h>
+#else
+    // if you don't have any encryption you still need to pull in the interface definitions
+    #include <aws/core/utils/crypto/Hash.h>
+    #include <aws/core/utils/crypto/HMAC.h>
+    #include <aws/core/utils/crypto/Cipher.h>
+    #include <aws/core/utils/crypto/SecureRandom.h>
+    #define NO_ENCRYPTION
+#endif
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Crypto;
+
+static const char *s_allocationTag = "CryptoFactory";
+
+static std::shared_ptr<HashFactory>& GetMD5Factory()
+{
+    static std::shared_ptr<HashFactory> s_MD5Factory(nullptr);
+    return s_MD5Factory;
+}
+
+static std::shared_ptr<HashFactory>& GetSha256Factory()
+{
+    static std::shared_ptr<HashFactory> s_Sha256Factory(nullptr);
+    return s_Sha256Factory;
+}
+
+static std::shared_ptr<HMACFactory>& GetSha256HMACFactory()
+{
+    static std::shared_ptr<HMACFactory> s_Sha256HMACFactory(nullptr);
+    return s_Sha256HMACFactory;
+}
+
+static std::shared_ptr<SymmetricCipherFactory>& GetAES_CBCFactory()
+{
+    static std::shared_ptr<SymmetricCipherFactory> s_AES_CBCFactory(nullptr);
+    return s_AES_CBCFactory;
+}
+
+static std::shared_ptr<SymmetricCipherFactory>& GetAES_CTRFactory()
+{
+    static std::shared_ptr<SymmetricCipherFactory> s_AES_CTRFactory(nullptr);
+    return s_AES_CTRFactory;
+}
+
+static std::shared_ptr<SymmetricCipherFactory>& GetAES_GCMFactory()
+{
+    static std::shared_ptr<SymmetricCipherFactory> s_AES_GCMFactory(nullptr);
+    return s_AES_GCMFactory;
+}
+
+static std::shared_ptr<SymmetricCipherFactory>& GetAES_KeyWrapFactory()
+{
+    static std::shared_ptr<SymmetricCipherFactory> s_AES_KeyWrapFactory(nullptr);
+    return s_AES_KeyWrapFactory;
+}
+
+static std::shared_ptr<SecureRandomFactory>& GetSecureRandomFactory()
+{
+    static std::shared_ptr<SecureRandomFactory> s_SecureRandomFactory(nullptr);
+    return s_SecureRandomFactory;
+}
+
+static std::shared_ptr<SecureRandomBytes>& GetSecureRandom()
+{
+    static std::shared_ptr<SecureRandomBytes> s_SecureRandom(nullptr);
+    return s_SecureRandom;
+}
+
+static bool s_InitCleanupOpenSSLFlag(false);
+
+class DefaultMD5Factory : public HashFactory
+{
+public:
+    std::shared_ptr<Hash> CreateImplementation() const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<MD5BcryptImpl>(s_allocationTag);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<MD5OpenSSLImpl>(s_allocationTag);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<MD5CommonCryptoImpl>(s_allocationTag);
+#else
+    return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultSHA256Factory : public HashFactory
+{
+public:
+    std::shared_ptr<Hash> CreateImplementation() const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<Sha256BcryptImpl>(s_allocationTag);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<Sha256OpenSSLImpl>(s_allocationTag);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<Sha256CommonCryptoImpl>(s_allocationTag);
+#else
+    return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultSHA256HmacFactory : public HMACFactory
+{
+public:
+    std::shared_ptr<Aws::Utils::Crypto::HMAC> CreateImplementation() const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<Sha256HMACBcryptImpl>(s_allocationTag);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<Sha256HMACOpenSSLImpl>(s_allocationTag);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<Sha256HMACCommonCryptoImpl>(s_allocationTag);
+#else
+    return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+
+class DefaultAES_CBCFactory : public SymmetricCipherFactory
+{
+public:
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_BCrypt>(s_allocationTag, key);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_OpenSSL>(s_allocationTag, key);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_CommonCrypto>(s_allocationTag, key);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        return nullptr;
+#endif
+    }
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key, const CryptoBuffer& iv, const CryptoBuffer&, const CryptoBuffer&) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_BCrypt>(s_allocationTag, key, iv);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_OpenSSL>(s_allocationTag, key, iv);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_CommonCrypto>(s_allocationTag, key, iv);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+
+        return nullptr;
+#endif
+    }
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(CryptoBuffer&& key, CryptoBuffer&& iv, CryptoBuffer&&, CryptoBuffer&&) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_BCrypt>(s_allocationTag, key, iv);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_OpenSSL>(s_allocationTag, key, iv);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CBC_Cipher_CommonCrypto>(s_allocationTag, key, iv);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+
+        return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultAES_CTRFactory : public SymmetricCipherFactory
+{
+public:
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+       return Aws::MakeShared<AES_CTR_Cipher_BCrypt>(s_allocationTag, key);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_OpenSSL>(s_allocationTag, key);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_CommonCrypto>(s_allocationTag, key);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        return nullptr;
+#endif
+    }
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key, const CryptoBuffer& iv, const CryptoBuffer&, const CryptoBuffer&) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_BCrypt>(s_allocationTag, key, iv);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_OpenSSL>(s_allocationTag, key, iv);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_CommonCrypto>(s_allocationTag, key, iv);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+
+        return nullptr;
+#endif
+    }
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(CryptoBuffer&& key, CryptoBuffer&& iv, CryptoBuffer&&, CryptoBuffer&&) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_BCrypt>(s_allocationTag, key, iv);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_OpenSSL>(s_allocationTag, key, iv);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_CTR_Cipher_CommonCrypto>(s_allocationTag, key, iv);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+
+        return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultAES_GCMFactory : public SymmetricCipherFactory
+{
+public:
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_BCrypt>(s_allocationTag, key);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_OpenSSL>(s_allocationTag, key);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_CommonCrypto>(s_allocationTag, key);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+
+        return nullptr;
+#endif
+    }
+
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key, const CryptoBuffer* aad) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_BCrypt>(s_allocationTag, key, aad);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_OpenSSL>(s_allocationTag, key, aad);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_CommonCrypto>(s_allocationTag, key, aad);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(aad);
+        return nullptr;
+#endif
+    }
+
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key, const CryptoBuffer& iv, const CryptoBuffer& tag, const CryptoBuffer& aad) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_BCrypt>(s_allocationTag, key, iv, tag, aad);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_OpenSSL>(s_allocationTag, key, iv, tag, aad);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_CommonCrypto>(s_allocationTag, key, iv, tag, aad);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+        AWS_UNREFERENCED_PARAM(tag);
+        AWS_UNREFERENCED_PARAM(aad);
+        return nullptr;
+#endif
+    }
+    /**
+     * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+     */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(CryptoBuffer&& key, CryptoBuffer&& iv, CryptoBuffer&& tag, CryptoBuffer&& aad) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_BCrypt>(s_allocationTag, std::move(key), std::move(iv), std::move(tag), std::move(aad));
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_OpenSSL>(s_allocationTag, std::move(key), std::move(iv), std::move(tag), std::move(aad));
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_GCM_Cipher_CommonCrypto>(s_allocationTag, std::move(key), std::move(iv), std::move(tag), std::move(aad));
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+        AWS_UNREFERENCED_PARAM(tag);
+        AWS_UNREFERENCED_PARAM(aad);
+        return nullptr;
+#endif
+    }
+
+    /**
+     * Opportunity to make any static initialization calls you need to make.
+     * Will only be called once.
+     */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultAES_KeyWrapFactory : public SymmetricCipherFactory
+{
+public:
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key) const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<AES_KeyWrap_Cipher_BCrypt>(s_allocationTag, key);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<AES_KeyWrap_Cipher_OpenSSL>(s_allocationTag, key);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<AES_KeyWrap_Cipher_CommonCrypto>(s_allocationTag, key);
+#else
+        AWS_UNREFERENCED_PARAM(key);
+        return nullptr;
+#endif
+    }
+    /**
+    * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+    */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(const CryptoBuffer& key, const CryptoBuffer& iv, const CryptoBuffer& tag, const CryptoBuffer&) const override
+    {
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+        AWS_UNREFERENCED_PARAM(tag);
+        return nullptr;
+    }
+    /**
+    * Factory method. Returns cipher implementation. See the SymmetricCipher class for more details.
+    */
+    std::shared_ptr<SymmetricCipher> CreateImplementation(CryptoBuffer&& key, CryptoBuffer&& iv, CryptoBuffer&& tag, CryptoBuffer&&) const override
+    {
+        AWS_UNREFERENCED_PARAM(key);
+        AWS_UNREFERENCED_PARAM(iv);
+        AWS_UNREFERENCED_PARAM(tag);
+        return nullptr;
+    }
+
+    /**
+    * Opportunity to make any static initialization calls you need to make.
+    * Will only be called once.
+    */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if (s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+    * Opportunity to make any static cleanup calls you need to make.
+    * will only be called at the end of the application.
+    */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if (s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+class DefaultSecureRandFactory : public SecureRandomFactory
+{
+    /**
+     * Factory method. Returns SecureRandom implementation.
+     */
+    std::shared_ptr<SecureRandomBytes> CreateImplementation() const override
+    {
+#if ENABLE_BCRYPT_ENCRYPTION
+        return Aws::MakeShared<SecureRandomBytes_BCrypt>(s_allocationTag);
+#elif ENABLE_OPENSSL_ENCRYPTION
+        return Aws::MakeShared<SecureRandomBytes_OpenSSLImpl>(s_allocationTag);
+#elif ENABLE_COMMONCRYPTO_ENCRYPTION
+        return Aws::MakeShared<SecureRandomBytes_CommonCrypto>(s_allocationTag);
+#else
+        return nullptr;
+#endif
+    }
+
+    /**
+ * Opportunity to make any static initialization calls you need to make.
+ * Will only be called once.
+ */
+    void InitStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.EnterRoom(&OpenSSL::init_static_state);
+        }
+#endif
+    }
+
+    /**
+     * Opportunity to make any static cleanup calls you need to make.
+     * will only be called at the end of the application.
+     */
+    void CleanupStaticState() override
+    {
+#if ENABLE_OPENSSL_ENCRYPTION
+        if(s_InitCleanupOpenSSLFlag)
+        {
+            OpenSSL::getTheLights.LeaveRoom(&OpenSSL::cleanup_static_state);
+        }
+#endif
+    }
+};
+
+void Aws::Utils::Crypto::SetInitCleanupOpenSSLFlag(bool initCleanupFlag)
+{
+    s_InitCleanupOpenSSLFlag = initCleanupFlag;
+}
+
+void Aws::Utils::Crypto::InitCrypto()
+{
+    if(GetMD5Factory())
+    {
+        GetMD5Factory()->InitStaticState();
+    }
+    else
+    {
+        GetMD5Factory() = Aws::MakeShared<DefaultMD5Factory>(s_allocationTag);
+        GetMD5Factory()->InitStaticState();
+    }
+
+    if(GetSha256Factory())
+    {
+        GetSha256Factory()->InitStaticState();
+    }
+    else
+    {
+        GetSha256Factory() = Aws::MakeShared<DefaultSHA256Factory>(s_allocationTag);
+        GetSha256Factory()->InitStaticState();
+    }
+
+    if(GetSha256HMACFactory())
+    {
+        GetSha256HMACFactory()->InitStaticState();
+    }
+    else
+    {
+        GetSha256HMACFactory() = Aws::MakeShared<DefaultSHA256HmacFactory>(s_allocationTag);
+        GetSha256HMACFactory()->InitStaticState();
+    }
+
+    if(GetAES_CBCFactory())
+    {
+        GetAES_CBCFactory()->InitStaticState();
+    }
+    else
+    {
+        GetAES_CBCFactory() = Aws::MakeShared<DefaultAES_CBCFactory>(s_allocationTag);
+        GetAES_CBCFactory()->InitStaticState();
+    }
+
+    if(GetAES_CTRFactory())
+    {
+        GetAES_CTRFactory()->InitStaticState();
+    }
+    else
+    {
+        GetAES_CTRFactory() = Aws::MakeShared<DefaultAES_CTRFactory>(s_allocationTag);
+        GetAES_CTRFactory()->InitStaticState();
+    }
+
+    if(GetAES_GCMFactory())
+    {
+        GetAES_GCMFactory()->InitStaticState();
+    }
+    else
+    {
+        GetAES_GCMFactory() = Aws::MakeShared<DefaultAES_GCMFactory>(s_allocationTag);
+        GetAES_GCMFactory()->InitStaticState();
+    }
+
+    if (!GetAES_KeyWrapFactory())
+    {
+        GetAES_KeyWrapFactory() = Aws::MakeShared<DefaultAES_KeyWrapFactory>(s_allocationTag);
+    }
+    GetAES_KeyWrapFactory()->InitStaticState();
+
+    if(GetSecureRandomFactory())
+    {
+        GetSecureRandomFactory()->InitStaticState();
+    }
+    else
+    {
+        GetSecureRandomFactory() = Aws::MakeShared<DefaultSecureRandFactory>(s_allocationTag);
+        GetSecureRandomFactory()->InitStaticState();
+    }
+
+    GetSecureRandom() = GetSecureRandomFactory()->CreateImplementation();
+}
+
+void Aws::Utils::Crypto::CleanupCrypto()
+{
+    if(GetMD5Factory())
+    {
+        GetMD5Factory()->CleanupStaticState();
+        GetMD5Factory() = nullptr;
+    }
+
+    if(GetSha256Factory())
+    {
+        GetSha256Factory()->CleanupStaticState();
+        GetSha256Factory() = nullptr;
+    }
+
+    if(GetSha256HMACFactory())
+    {
+        GetSha256HMACFactory()->CleanupStaticState();
+        GetSha256HMACFactory() =  nullptr;
+    }
+
+    if(GetAES_CBCFactory())
+    {
+        GetAES_CBCFactory()->CleanupStaticState();
+        GetAES_CBCFactory() = nullptr;
+    }
+
+    if(GetAES_CTRFactory())
+    {
+        GetAES_CTRFactory()->CleanupStaticState();
+        GetAES_CTRFactory() = nullptr;
+    }
+
+    if(GetAES_GCMFactory())
+    {
+        GetAES_GCMFactory()->CleanupStaticState();
+        GetAES_GCMFactory() = nullptr;
+    }
+
+    if(GetAES_KeyWrapFactory())
+    {
+        GetAES_KeyWrapFactory()->CleanupStaticState();
+        GetAES_KeyWrapFactory() = nullptr;
+    }
+
+    if(GetSecureRandomFactory())
+    {
+        GetSecureRandom() = nullptr;
+        GetSecureRandomFactory()->CleanupStaticState();
+        GetSecureRandomFactory() = nullptr;
+    }
+}
+
+void Aws::Utils::Crypto::SetMD5Factory(const std::shared_ptr<HashFactory>& factory)
+{
+    GetMD5Factory() = factory;
+}
+
+void Aws::Utils::Crypto::SetSha256Factory(const std::shared_ptr<HashFactory>& factory)
+{
+    GetSha256Factory() = factory;
+}
+
+void Aws::Utils::Crypto::SetSha256HMACFactory(const std::shared_ptr<HMACFactory>& factory)
+{
+    GetSha256HMACFactory() = factory;
+}
+
+void Aws::Utils::Crypto::SetAES_CBCFactory(const std::shared_ptr<SymmetricCipherFactory>& factory)
+{
+    GetAES_CBCFactory() = factory;
+}
+
+void Aws::Utils::Crypto::SetAES_CTRFactory(const std::shared_ptr<SymmetricCipherFactory>& factory)
+{
+    GetAES_CTRFactory() = factory;
+}
+
+void Aws::Utils::Crypto::SetAES_GCMFactory(const std::shared_ptr<SymmetricCipherFactory>& factory)
+{
+    GetAES_GCMFactory() = factory;
+}
+
+void Aws::Utils::Crypto::SetAES_KeyWrapFactory(const std::shared_ptr<SymmetricCipherFactory>& factory)
+{
+    GetAES_KeyWrapFactory() = factory;
+}
+
+void Aws::Utils::Crypto::SetSecureRandomFactory(const std::shared_ptr<SecureRandomFactory>& factory)
+{
+    GetSecureRandomFactory() = factory;
+}
+
+std::shared_ptr<Hash> Aws::Utils::Crypto::CreateMD5Implementation()
+{
+    return GetMD5Factory()->CreateImplementation();
+}
+
+std::shared_ptr<Hash> Aws::Utils::Crypto::CreateSha256Implementation()
+{
+    return GetSha256Factory()->CreateImplementation();
+}
+
+std::shared_ptr<Aws::Utils::Crypto::HMAC> Aws::Utils::Crypto::CreateSha256HMACImplementation()
+{
+    return GetSha256HMACFactory()->CreateImplementation();
+}
+
+#ifdef _WIN32
+#pragma warning( push )
+#pragma warning( disable : 4702 )
+#endif
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CBCImplementation(const CryptoBuffer& key)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CBCFactory()->CreateImplementation(key);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CBCImplementation(const CryptoBuffer& key, const CryptoBuffer& iv)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CBCFactory()->CreateImplementation(key, iv);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CBCImplementation(CryptoBuffer&& key, CryptoBuffer&& iv)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CBCFactory()->CreateImplementation(std::move(key), std::move(iv));
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CTRImplementation(const CryptoBuffer& key)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CTRFactory()->CreateImplementation(key);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CTRImplementation(const CryptoBuffer& key, const CryptoBuffer& iv)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CTRFactory()->CreateImplementation(key, iv);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_CTRImplementation(CryptoBuffer&& key, CryptoBuffer&& iv)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_CTRFactory()->CreateImplementation(std::move(key), std::move(iv));
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_GCMImplementation(const CryptoBuffer& key)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_GCMFactory()->CreateImplementation(key);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_GCMImplementation(const CryptoBuffer& key, const CryptoBuffer* aad)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_GCMFactory()->CreateImplementation(key, aad);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_GCMImplementation(const CryptoBuffer& key, const CryptoBuffer& iv, const CryptoBuffer& tag, const CryptoBuffer& aad)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_GCMFactory()->CreateImplementation(key, iv, tag, aad);
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_GCMImplementation(CryptoBuffer&& key, CryptoBuffer&& iv, CryptoBuffer&& tag, CryptoBuffer&& aad)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_GCMFactory()->CreateImplementation(std::move(key), std::move(iv), std::move(tag), std::move(aad));
+}
+
+std::shared_ptr<SymmetricCipher> Aws::Utils::Crypto::CreateAES_KeyWrapImplementation(const CryptoBuffer& key)
+{
+#ifdef NO_SYMMETRIC_ENCRYPTION
+    return nullptr;
+#endif
+    return GetAES_KeyWrapFactory()->CreateImplementation(key);
+}
+
+#ifdef _WIN32
+#pragma warning(pop)
+#endif
+
+std::shared_ptr<SecureRandomBytes> Aws::Utils::Crypto::CreateSecureRandomBytesImplementation()
+{
+    return GetSecureRandom();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/openssl/CryptoImpl.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/openssl/CryptoImpl.cpp
new file mode 100644
index 0000000000..911838864b
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/crypto/openssl/CryptoImpl.cpp
@@ -0,0 +1,987 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <cstring>
+
+#include <aws/core/utils/memory/AWSMemory.h>
+#include <aws/core/utils/crypto/openssl/CryptoImpl.h>
+#include <aws/core/utils/Outcome.h>
+#include <openssl/md5.h>
+
+#ifdef OPENSSL_IS_BORINGSSL
+#ifdef _MSC_VER
+AWS_SUPPRESS_WARNING_PUSH(4201)
+#else
+AWS_SUPPRESS_WARNING_PUSH("-Wpedantic")
+#endif
+#endif
+
+#include <openssl/sha.h>
+
+#ifdef OPENSSL_IS_BORINGSSL
+AWS_SUPPRESS_WARNING_POP
+#endif
+
+#include <openssl/err.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <thread>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Crypto;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Crypto
+        {
+            namespace OpenSSL
+            {
+/**
+ * openssl with OPENSSL_VERSION_NUMBER < 0x10100003L made data type details unavailable
+ * libressl use openssl with data type details available, but mandatorily set
+ * OPENSSL_VERSION_NUMBER = 0x20000000L, insane!
+ * https://github.com/aws/aws-sdk-cpp/pull/507/commits/2c99f1fe0c4b4683280caeb161538d4724d6a179
+ */
+#if defined(LIBRESSL_VERSION_NUMBER) && (OPENSSL_VERSION_NUMBER == 0x20000000L)
+#undef OPENSSL_VERSION_NUMBER
+#define OPENSSL_VERSION_NUMBER 0x1000107fL
+#endif
+#define OPENSSL_VERSION_LESS_1_1 (OPENSSL_VERSION_NUMBER < 0x10100003L)
+
+#if OPENSSL_VERSION_LESS_1_1
+                static const char* OPENSSL_INTERNALS_TAG = "OpenSSLCallbackState";
+                static std::mutex* locks(nullptr);
+#endif
+
+                GetTheLights getTheLights;
+
+                void init_static_state()
+                {
+#if OPENSSL_VERSION_LESS_1_1 || defined(OPENSSL_IS_BORINGSSL)
+                    ERR_load_crypto_strings();
+#else
+                    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS /*options*/ ,NULL /* OpenSSL init settings*/ );
+#endif
+#if !defined(OPENSSL_IS_BORINGSSL)
+                    OPENSSL_add_all_algorithms_noconf();
+#endif
+#if OPENSSL_VERSION_LESS_1_1
+                    if (!CRYPTO_get_locking_callback())
+                    {
+                        locks = Aws::NewArray<std::mutex>(static_cast<size_t>(CRYPTO_num_locks()),
+                                                          OPENSSL_INTERNALS_TAG);
+                        CRYPTO_set_locking_callback(&locking_fn);
+                    }
+
+                    if (!CRYPTO_get_id_callback())
+                    {
+                        CRYPTO_set_id_callback(&id_fn);
+                    }
+#endif
+                    RAND_poll();
+                }
+
+                void cleanup_static_state()
+                {
+#if OPENSSL_VERSION_LESS_1_1
+                    if (CRYPTO_get_locking_callback() == &locking_fn)
+                    {
+                        CRYPTO_set_locking_callback(nullptr);
+                        assert(locks);
+                        Aws::DeleteArray(locks);
+                        locks = nullptr;
+                    }
+
+                    if (CRYPTO_get_id_callback() == &id_fn)
+                    {
+                        CRYPTO_set_id_callback(nullptr);
+                    }
+#endif
+                }
+
+#if OPENSSL_VERSION_LESS_1_1
+                void locking_fn(int mode, int n, const char*, int)
+                {
+                    if (mode & CRYPTO_LOCK)
+                    {
+                        locks[n].lock();
+                    }
+                    else
+                    {
+                        locks[n].unlock();
+                    }
+                }
+
+                unsigned long id_fn()
+                {
+                    return static_cast<unsigned long>(std::hash<std::thread::id>()(std::this_thread::get_id()));
+                }
+#endif
+            }
+
+            static const char* OPENSSL_LOG_TAG = "OpenSSLCipher";
+
+            void SecureRandomBytes_OpenSSLImpl::GetBytes(unsigned char* buffer, size_t bufferSize)
+            {
+                if (!bufferSize)
+                {
+                    return;
+                }
+
+                if (!buffer)
+                {
+                    AWS_LOGSTREAM_FATAL(OPENSSL_LOG_TAG, "Secure Random Bytes generator can't generate: " << bufferSize << " bytes with nullptr buffer.");
+                    assert(buffer);
+                    return;
+                }
+
+                int success = RAND_bytes(buffer, static_cast<int>(bufferSize));
+                if (success != 1)
+                {
+                    m_failure = true;
+                }
+            }
+
+            class OpensslCtxRAIIGuard
+            {
+            public:
+                OpensslCtxRAIIGuard()
+                {
+                    m_ctx = EVP_MD_CTX_create();
+                    assert(m_ctx != nullptr);
+                }
+
+                ~OpensslCtxRAIIGuard()
+                {
+                    EVP_MD_CTX_destroy(m_ctx);
+                    m_ctx = nullptr;
+                }
+
+                EVP_MD_CTX* getResource()
+                {
+                    return m_ctx;
+                }
+            private:
+                EVP_MD_CTX *m_ctx;
+            };
+
+            HashResult MD5OpenSSLImpl::Calculate(const Aws::String& str)
+            {
+                OpensslCtxRAIIGuard guard;
+                auto ctx = guard.getResource();
+#if !defined(OPENSSL_IS_BORINGSSL)
+                EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+#endif
+                EVP_DigestInit_ex(ctx, EVP_md5(), nullptr);
+                EVP_DigestUpdate(ctx, str.c_str(), str.size());
+
+                ByteBuffer hash(EVP_MD_size(EVP_md5()));
+                EVP_DigestFinal(ctx, hash.GetUnderlyingData(), nullptr);
+
+                return HashResult(std::move(hash));
+            }
+
+            HashResult MD5OpenSSLImpl::Calculate(Aws::IStream& stream)
+            {
+                OpensslCtxRAIIGuard guard;
+                auto ctx = guard.getResource();
+#if !defined(OPENSSL_IS_BORINGSSL)
+                EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
+#endif
+                EVP_DigestInit_ex(ctx, EVP_md5(), nullptr);
+
+                auto currentPos = stream.tellg();
+                if (currentPos == -1)
+                {
+                    currentPos = 0;
+                    stream.clear();
+                }
+                stream.seekg(0, stream.beg);
+
+                char streamBuffer[Aws::Utils::Crypto::Hash::INTERNAL_HASH_STREAM_BUFFER_SIZE];
+                while (stream.good())
+                {
+                    stream.read(streamBuffer, Aws::Utils::Crypto::Hash::INTERNAL_HASH_STREAM_BUFFER_SIZE);
+                    auto bytesRead = stream.gcount();
+
+                    if (bytesRead > 0)
+                    {
+                        EVP_DigestUpdate(ctx, streamBuffer, static_cast<size_t>(bytesRead));
+                    }
+                }
+
+                stream.clear();
+                stream.seekg(currentPos, stream.beg);
+
+                ByteBuffer hash(EVP_MD_size(EVP_md5()));
+                EVP_DigestFinal(ctx, hash.GetUnderlyingData(), nullptr);
+
+                return HashResult(std::move(hash));
+            }
+
+            HashResult Sha256OpenSSLImpl::Calculate(const Aws::String& str)
+            {
+                OpensslCtxRAIIGuard guard;
+                auto ctx = guard.getResource();
+                EVP_DigestInit_ex(ctx, EVP_sha256(), nullptr);
+                EVP_DigestUpdate(ctx, str.c_str(), str.size());
+
+                ByteBuffer hash(EVP_MD_size(EVP_sha256()));
+                EVP_DigestFinal(ctx, hash.GetUnderlyingData(), nullptr);
+
+                return HashResult(std::move(hash));
+            }
+
+            HashResult Sha256OpenSSLImpl::Calculate(Aws::IStream& stream)
+            {
+                OpensslCtxRAIIGuard guard;
+                auto ctx = guard.getResource();
+
+                EVP_DigestInit_ex(ctx, EVP_sha256(), nullptr);
+
+                auto currentPos = stream.tellg();
+                if (currentPos == -1)
+                {
+                    currentPos = 0;
+                    stream.clear();
+                }
+
+                stream.seekg(0, stream.beg);
+
+                char streamBuffer[Aws::Utils::Crypto::Hash::INTERNAL_HASH_STREAM_BUFFER_SIZE];
+                while (stream.good())
+                {
+                    stream.read(streamBuffer, Aws::Utils::Crypto::Hash::INTERNAL_HASH_STREAM_BUFFER_SIZE);
+                    auto bytesRead = stream.gcount();
+
+                    if (bytesRead > 0)
+                    {
+                        EVP_DigestUpdate(ctx, streamBuffer, static_cast<size_t>(bytesRead));
+                    }
+                }
+
+                stream.clear();
+                stream.seekg(currentPos, stream.beg);
+
+                ByteBuffer hash(EVP_MD_size(EVP_sha256()));
+                EVP_DigestFinal(ctx, hash.GetUnderlyingData(), nullptr);
+
+                return HashResult(std::move(hash));
+            }
+
+            class HMACRAIIGuard {
+            public:
+                HMACRAIIGuard() {
+#if OPENSSL_VERSION_LESS_1_1
+                    m_ctx = Aws::New<HMAC_CTX>("AllocSha256HAMCOpenSSLContext");
+#else
+                    m_ctx = HMAC_CTX_new();
+#endif
+                    assert(m_ctx != nullptr);
+                }
+
+                ~HMACRAIIGuard() {
+#if OPENSSL_VERSION_LESS_1_1
+                    Aws::Delete<HMAC_CTX>(m_ctx);
+#else
+                    HMAC_CTX_free(m_ctx);
+#endif
+                    m_ctx = nullptr;
+                }
+
+                HMAC_CTX* getResource() {
+                    return m_ctx;
+                }
+            private:
+                HMAC_CTX *m_ctx;
+            };
+
+            HashResult Sha256HMACOpenSSLImpl::Calculate(const ByteBuffer& toSign, const ByteBuffer& secret)
+            {
+                unsigned int length = SHA256_DIGEST_LENGTH;
+                ByteBuffer digest(length);
+                memset(digest.GetUnderlyingData(), 0, length);
+
+                HMACRAIIGuard guard;
+                HMAC_CTX* m_ctx = guard.getResource();
+
+#if OPENSSL_VERSION_LESS_1_1
+                HMAC_CTX_init(m_ctx);
+#endif
+
+                HMAC_Init_ex(m_ctx, secret.GetUnderlyingData(), static_cast<int>(secret.GetLength()), EVP_sha256(),
+                             NULL);
+                HMAC_Update(m_ctx, toSign.GetUnderlyingData(), toSign.GetLength());
+                HMAC_Final(m_ctx, digest.GetUnderlyingData(), &length);
+
+#if OPENSSL_VERSION_LESS_1_1
+                HMAC_CTX_cleanup(m_ctx);
+#else
+                HMAC_CTX_reset(m_ctx);
+#endif
+                return HashResult(std::move(digest));
+            }
+
+            void LogErrors(const char* logTag = OPENSSL_LOG_TAG)
+            {
+                unsigned long errorCode = ERR_get_error();
+                char errStr[256];
+                ERR_error_string_n(errorCode, errStr, 256);
+
+                AWS_LOGSTREAM_ERROR(logTag, errStr);
+            }
+
+            OpenSSLCipher::OpenSSLCipher(const CryptoBuffer& key, size_t blockSizeBytes, bool ctrMode) :
+                    SymmetricCipher(key, blockSizeBytes, ctrMode), m_encryptor_ctx(nullptr), m_decryptor_ctx(nullptr)
+            {
+                Init();
+            }
+
+            OpenSSLCipher::OpenSSLCipher(OpenSSLCipher&& toMove) : SymmetricCipher(std::move(toMove)),
+                    m_encryptor_ctx(nullptr), m_decryptor_ctx(nullptr)
+            {
+                Init();
+                EVP_CIPHER_CTX_copy(m_encryptor_ctx, toMove.m_encryptor_ctx);
+                EVP_CIPHER_CTX_copy(m_decryptor_ctx, toMove.m_decryptor_ctx);
+                EVP_CIPHER_CTX_cleanup(toMove.m_encryptor_ctx);
+                EVP_CIPHER_CTX_cleanup(toMove.m_decryptor_ctx);
+            }
+
+            OpenSSLCipher::OpenSSLCipher(CryptoBuffer&& key, CryptoBuffer&& initializationVector, CryptoBuffer&& tag) :
+                    SymmetricCipher(std::move(key), std::move(initializationVector), std::move(tag)),
+                    m_encryptor_ctx(nullptr), m_decryptor_ctx(nullptr)
+            {
+                Init();
+            }
+
+            OpenSSLCipher::OpenSSLCipher(const CryptoBuffer& key, const CryptoBuffer& initializationVector,
+                                         const CryptoBuffer& tag) :
+                    SymmetricCipher(key, initializationVector, tag), m_encryptor_ctx(nullptr), m_decryptor_ctx(nullptr)
+            {
+                Init();
+            }
+
+            OpenSSLCipher::~OpenSSLCipher()
+            {
+                Cleanup();
+                if (m_encryptor_ctx)
+                {
+                    EVP_CIPHER_CTX_free(m_encryptor_ctx);
+                    m_encryptor_ctx = nullptr;
+                }
+                if (m_decryptor_ctx)
+                {
+                    EVP_CIPHER_CTX_free(m_decryptor_ctx);
+                    m_decryptor_ctx = nullptr;
+                }
+            }
+
+            void OpenSSLCipher::Init()
+            {
+                if (m_failure)
+                {
+                    return;
+                }
+
+                if (!m_encryptor_ctx)
+                {
+                    // EVP_CIPHER_CTX_init() will be called inside EVP_CIPHER_CTX_new().
+                    m_encryptor_ctx = EVP_CIPHER_CTX_new();
+                    assert(m_encryptor_ctx != nullptr);
+                }
+                else
+                {   // _init is the same as _reset after openssl 1.1
+                    EVP_CIPHER_CTX_init(m_encryptor_ctx);
+                }
+                if (!m_decryptor_ctx)
+                {
+                    // EVP_CIPHER_CTX_init() will be called inside EVP_CIPHER_CTX_new().
+                    m_decryptor_ctx = EVP_CIPHER_CTX_new();
+                    assert(m_decryptor_ctx != nullptr);
+                }
+                else
+                {   // _init is the same as _reset after openssl 1.1
+                    EVP_CIPHER_CTX_init(m_decryptor_ctx);
+                }
+                m_emptyPlaintext = false;
+            }
+
+            CryptoBuffer OpenSSLCipher::EncryptBuffer(const CryptoBuffer& unEncryptedData)
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(OPENSSL_LOG_TAG, "Cipher not properly initialized for encryption. Aborting");
+                    return CryptoBuffer();
+                }
+
+                int lengthWritten = static_cast<int>(unEncryptedData.GetLength() + (GetBlockSizeBytes() - 1));
+                CryptoBuffer encryptedText(static_cast<size_t>( lengthWritten + (GetBlockSizeBytes() - 1)));
+
+                if (!EVP_EncryptUpdate(m_encryptor_ctx, encryptedText.GetUnderlyingData(), &lengthWritten,
+                                       unEncryptedData.GetUnderlyingData(),
+                                       static_cast<int>(unEncryptedData.GetLength())))
+                {
+                    m_failure = true;
+                    LogErrors();
+                    return CryptoBuffer();
+                }
+
+                if (static_cast<size_t>(lengthWritten) < encryptedText.GetLength())
+                {
+                    return CryptoBuffer(encryptedText.GetUnderlyingData(), static_cast<size_t>(lengthWritten));
+                }
+                return encryptedText;
+            }
+
+            CryptoBuffer OpenSSLCipher::FinalizeEncryption()
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(OPENSSL_LOG_TAG, "Cipher not properly initialized for encryption finalization. Aborting");
+                    return CryptoBuffer();
+                }
+
+                CryptoBuffer finalBlock(GetBlockSizeBytes());
+                int writtenSize = 0;
+                if (!EVP_EncryptFinal_ex(m_encryptor_ctx, finalBlock.GetUnderlyingData(), &writtenSize))
+                {
+                    m_failure = true;
+                    LogErrors();
+                    return CryptoBuffer();
+                }
+                return CryptoBuffer(finalBlock.GetUnderlyingData(), static_cast<size_t>(writtenSize));
+            }
+
+            CryptoBuffer OpenSSLCipher::DecryptBuffer(const CryptoBuffer& encryptedData)
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(OPENSSL_LOG_TAG, "Cipher not properly initialized for decryption. Aborting");
+                    return CryptoBuffer();
+                }
+
+                int lengthWritten = static_cast<int>(encryptedData.GetLength() + (GetBlockSizeBytes() - 1));
+                CryptoBuffer decryptedText(static_cast<size_t>(lengthWritten));
+
+                if (!EVP_DecryptUpdate(m_decryptor_ctx, decryptedText.GetUnderlyingData(), &lengthWritten,
+                                       encryptedData.GetUnderlyingData(),
+                                       static_cast<int>(encryptedData.GetLength())))
+                {
+                    m_failure = true;
+                    LogErrors();
+                    return CryptoBuffer();
+                }
+
+                if (lengthWritten == 0)
+                {
+                    m_emptyPlaintext = true;
+                }
+                if (static_cast<size_t>(lengthWritten) < decryptedText.GetLength())
+                {
+                    return CryptoBuffer(decryptedText.GetUnderlyingData(), static_cast<size_t>(lengthWritten));
+                }
+                return decryptedText;
+            }
+
+            CryptoBuffer OpenSSLCipher::FinalizeDecryption()
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(OPENSSL_LOG_TAG, "Cipher not properly initialized for decryption finalization. Aborting");
+                    return CryptoBuffer();
+                }
+
+                CryptoBuffer finalBlock(GetBlockSizeBytes());
+                int writtenSize = static_cast<int>(finalBlock.GetLength());
+                int ret = EVP_DecryptFinal_ex(m_decryptor_ctx, finalBlock.GetUnderlyingData(), &writtenSize);
+#if OPENSSL_VERSION_NUMBER > 0x1010104fL //1.1.1d
+                if (ret <= 0)
+#else
+                if (ret <= 0 && !m_emptyPlaintext) // see details why making exception for empty string at: https://github.com/aws/aws-sdk-cpp/issues/1413
+#endif
+                {
+                    m_failure = true;
+                    LogErrors();
+                    return CryptoBuffer();
+                }
+                return CryptoBuffer(finalBlock.GetUnderlyingData(), static_cast<size_t>(writtenSize));
+            }
+
+            void OpenSSLCipher::Reset()
+            {
+                Cleanup();
+                Init();
+            }
+
+            void OpenSSLCipher::Cleanup()
+            {
+                m_failure = false;
+                if (m_encryptor_ctx) EVP_CIPHER_CTX_cleanup(m_encryptor_ctx);
+                if (m_decryptor_ctx) EVP_CIPHER_CTX_cleanup(m_decryptor_ctx);
+            }
+
+            bool OpenSSLCipher::CheckKeyAndIVLength(size_t expectedKeyLength, size_t expectedIVLength)
+            {
+                if (!m_failure && ((m_key.GetLength() != expectedKeyLength) || m_initializationVector.GetLength() != expectedIVLength))
+                {
+                    AWS_LOGSTREAM_ERROR(OPENSSL_LOG_TAG, "Expected Key size is: " << expectedKeyLength << " and expected IV size is: " << expectedIVLength);
+                    m_failure = true;
+                }
+                return !m_failure;
+            }
+
+            size_t AES_CBC_Cipher_OpenSSL::BlockSizeBytes = 16;
+            size_t AES_CBC_Cipher_OpenSSL::KeyLengthBits = 256;
+            static const char* CBC_LOG_TAG = "AES_CBC_Cipher_OpenSSL";
+
+            AES_CBC_Cipher_OpenSSL::AES_CBC_Cipher_OpenSSL(const CryptoBuffer& key) : OpenSSLCipher(key, BlockSizeBytes)
+            {
+                InitCipher();
+            }
+
+            AES_CBC_Cipher_OpenSSL::AES_CBC_Cipher_OpenSSL(CryptoBuffer&& key, CryptoBuffer&& initializationVector) :
+                    OpenSSLCipher(std::move(key), std::move(initializationVector))
+            {
+                InitCipher();
+            }
+
+            AES_CBC_Cipher_OpenSSL::AES_CBC_Cipher_OpenSSL(const CryptoBuffer& key,
+                                                           const CryptoBuffer& initializationVector) :
+                    OpenSSLCipher(key, initializationVector)
+            {
+                InitCipher();
+            }
+
+            void AES_CBC_Cipher_OpenSSL::InitCipher()
+            {
+                if (m_failure || !CheckKeyAndIVLength(KeyLengthBits/8, BlockSizeBytes))
+                {
+                    return;
+                }
+
+                if (!EVP_EncryptInit_ex(m_encryptor_ctx, EVP_aes_256_cbc(), nullptr, m_key.GetUnderlyingData(),
+                                        m_initializationVector.GetUnderlyingData()) ||
+                    !EVP_DecryptInit_ex(m_decryptor_ctx, EVP_aes_256_cbc(), nullptr, m_key.GetUnderlyingData(),
+                                        m_initializationVector.GetUnderlyingData()))
+                {
+                    m_failure = true;
+                    LogErrors(CBC_LOG_TAG);
+                }
+            }
+
+            size_t AES_CBC_Cipher_OpenSSL::GetBlockSizeBytes() const
+            {
+                return BlockSizeBytes;
+            }
+
+            size_t AES_CBC_Cipher_OpenSSL::GetKeyLengthBits() const
+            {
+                return KeyLengthBits;
+            }
+
+            void AES_CBC_Cipher_OpenSSL::Reset()
+            {
+                OpenSSLCipher::Reset();
+                InitCipher();
+            }
+
+            size_t AES_CTR_Cipher_OpenSSL::BlockSizeBytes = 16;
+            size_t AES_CTR_Cipher_OpenSSL::KeyLengthBits = 256;
+            static const char* CTR_LOG_TAG = "AES_CTR_Cipher_OpenSSL";
+
+            AES_CTR_Cipher_OpenSSL::AES_CTR_Cipher_OpenSSL(const CryptoBuffer& key) : OpenSSLCipher(key, BlockSizeBytes,
+                                                                                                    true)
+            {
+                InitCipher();
+            }
+
+            AES_CTR_Cipher_OpenSSL::AES_CTR_Cipher_OpenSSL(CryptoBuffer&& key, CryptoBuffer&& initializationVector) :
+                    OpenSSLCipher(std::move(key), std::move(initializationVector))
+            {
+                InitCipher();
+            }
+
+            AES_CTR_Cipher_OpenSSL::AES_CTR_Cipher_OpenSSL(const CryptoBuffer& key,
+                                                           const CryptoBuffer& initializationVector) :
+                    OpenSSLCipher(key, initializationVector)
+            {
+                InitCipher();
+            }
+
+            void AES_CTR_Cipher_OpenSSL::InitCipher()
+            {
+                if (m_failure || !CheckKeyAndIVLength(KeyLengthBits/8, BlockSizeBytes))
+                {
+                    return;
+                }
+
+                if (!(EVP_EncryptInit_ex(m_encryptor_ctx, EVP_aes_256_ctr(), nullptr, m_key.GetUnderlyingData(),
+                                         m_initializationVector.GetUnderlyingData())
+                        && EVP_CIPHER_CTX_set_padding(m_encryptor_ctx, 0)) ||
+                    !(EVP_DecryptInit_ex(m_decryptor_ctx, EVP_aes_256_ctr(), nullptr, m_key.GetUnderlyingData(),
+                                         m_initializationVector.GetUnderlyingData())
+                        && EVP_CIPHER_CTX_set_padding(m_decryptor_ctx, 0)))
+                {
+                    m_failure = true;
+                    LogErrors(CTR_LOG_TAG);
+                }
+            }
+
+            size_t AES_CTR_Cipher_OpenSSL::GetBlockSizeBytes() const
+            {
+                return BlockSizeBytes;
+            }
+
+            size_t AES_CTR_Cipher_OpenSSL::GetKeyLengthBits() const
+            {
+                return KeyLengthBits;
+            }
+
+            void AES_CTR_Cipher_OpenSSL::Reset()
+            {
+                OpenSSLCipher::Reset();
+                InitCipher();
+            }
+
+            size_t AES_GCM_Cipher_OpenSSL::BlockSizeBytes = 16;
+            size_t AES_GCM_Cipher_OpenSSL::KeyLengthBits = 256;
+            size_t AES_GCM_Cipher_OpenSSL::IVLengthBytes = 12;
+            size_t AES_GCM_Cipher_OpenSSL::TagLengthBytes = 16;
+
+            static const char* GCM_LOG_TAG = "AES_GCM_Cipher_OpenSSL";
+
+            AES_GCM_Cipher_OpenSSL::AES_GCM_Cipher_OpenSSL(const CryptoBuffer& key)
+                : OpenSSLCipher(key, IVLengthBytes)
+            {
+                InitCipher();
+            }
+
+            AES_GCM_Cipher_OpenSSL::AES_GCM_Cipher_OpenSSL(const CryptoBuffer& key, const CryptoBuffer* aad)
+                : OpenSSLCipher(key, IVLengthBytes), m_aad(*aad)
+            {
+                InitCipher();
+            }
+
+            AES_GCM_Cipher_OpenSSL::AES_GCM_Cipher_OpenSSL(CryptoBuffer&& key, CryptoBuffer&& initializationVector,
+                                                           CryptoBuffer&& tag, CryptoBuffer&& aad) :
+                    OpenSSLCipher(std::move(key), std::move(initializationVector), std::move(tag)), m_aad(std::move(aad))
+            {
+                InitCipher();
+            }
+
+            AES_GCM_Cipher_OpenSSL::AES_GCM_Cipher_OpenSSL(const CryptoBuffer& key, const CryptoBuffer& initializationVector,
+                                                           const CryptoBuffer& tag, const CryptoBuffer& aad) :
+                    OpenSSLCipher(key, initializationVector, tag), m_aad(std::move(aad))
+            {
+                InitCipher();
+            }
+
+            CryptoBuffer AES_GCM_Cipher_OpenSSL::FinalizeEncryption()
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(GCM_LOG_TAG, "Cipher not properly initialized for encryption finalization. Aborting");
+                    return CryptoBuffer();
+                }
+
+                int writtenSize = 0;
+                CryptoBuffer finalBlock(GetBlockSizeBytes());
+                EVP_EncryptFinal_ex(m_encryptor_ctx, finalBlock.GetUnderlyingData(), &writtenSize);
+
+                m_tag = CryptoBuffer(TagLengthBytes);
+                if (!EVP_CIPHER_CTX_ctrl(m_encryptor_ctx, EVP_CTRL_GCM_GET_TAG, static_cast<int>(m_tag.GetLength()),
+                                         m_tag.GetUnderlyingData()))
+                {
+                    m_failure = true;
+                    LogErrors(GCM_LOG_TAG);
+                }
+
+                return CryptoBuffer();
+            }
+
+            void AES_GCM_Cipher_OpenSSL::InitCipher()
+            {
+                if (m_failure || !CheckKeyAndIVLength(KeyLengthBits/8, IVLengthBytes))
+                {
+                    return;
+                }
+
+                if (!(EVP_EncryptInit_ex(m_encryptor_ctx, EVP_aes_256_gcm(), nullptr, nullptr, nullptr) &&
+                        EVP_EncryptInit_ex(m_encryptor_ctx, nullptr, nullptr, m_key.GetUnderlyingData(),
+                                           m_initializationVector.GetUnderlyingData()) &&
+                        EVP_CIPHER_CTX_set_padding(m_encryptor_ctx, 0)) ||
+                    !(EVP_DecryptInit_ex(m_decryptor_ctx, EVP_aes_256_gcm(), nullptr, nullptr, nullptr) &&
+                        EVP_DecryptInit_ex(m_decryptor_ctx, nullptr, nullptr, m_key.GetUnderlyingData(),
+                                           m_initializationVector.GetUnderlyingData()) &&
+                        EVP_CIPHER_CTX_set_padding(m_decryptor_ctx, 0)))
+                {
+                    m_failure = true;
+                    LogErrors(GCM_LOG_TAG);
+                    return;
+                }
+
+                if (m_aad.GetLength() > 0)
+                {
+                    int outLen = 0;
+                    if(!EVP_EncryptUpdate(m_encryptor_ctx, nullptr, &outLen, m_aad.GetUnderlyingData(), m_aad.GetLength())
+                    || !EVP_DecryptUpdate(m_decryptor_ctx, nullptr, &outLen, m_aad.GetUnderlyingData(), m_aad.GetLength()))
+                    {
+                        m_failure = true;
+                        LogErrors(GCM_LOG_TAG);
+                        return;
+                    }
+                }
+
+                //tag should always be set in GCM decrypt mode
+                if (m_tag.GetLength() > 0)
+                {
+                    if (m_tag.GetLength() < TagLengthBytes)
+                    {
+                        AWS_LOGSTREAM_ERROR(GCM_LOG_TAG, "Illegal attempt to decrypt an AES GCM payload without a valid tag set: tag length=" << m_tag.GetLength());
+                        m_failure = true;
+                        return;
+                    }
+
+                    if (!EVP_CIPHER_CTX_ctrl(m_decryptor_ctx, EVP_CTRL_GCM_SET_TAG, static_cast<int>(m_tag.GetLength()), m_tag.GetUnderlyingData()))
+                    {
+                        m_failure = true;
+                        LogErrors(GCM_LOG_TAG);
+                    }
+                }
+            }
+
+            size_t AES_GCM_Cipher_OpenSSL::GetBlockSizeBytes() const
+            {
+                return BlockSizeBytes;
+            }
+
+            size_t AES_GCM_Cipher_OpenSSL::GetKeyLengthBits() const
+            {
+                return KeyLengthBits;
+            }
+
+            size_t AES_GCM_Cipher_OpenSSL::GetTagLengthBytes() const
+            {
+                return TagLengthBytes;
+            }
+
+            void AES_GCM_Cipher_OpenSSL::Reset()
+            {
+                OpenSSLCipher::Reset();
+                InitCipher();
+            }
+
+            size_t AES_KeyWrap_Cipher_OpenSSL::KeyLengthBits = 256;
+            size_t AES_KeyWrap_Cipher_OpenSSL::BlockSizeBytes = 8;
+            static const unsigned char INTEGRITY_VALUE = 0xA6;
+            static const size_t MIN_CEK_LENGTH_BYTES = 128 / 8;
+
+            static const char* KEY_WRAP_TAG = "AES_KeyWrap_Cipher_OpenSSL";
+
+            AES_KeyWrap_Cipher_OpenSSL::AES_KeyWrap_Cipher_OpenSSL(const CryptoBuffer& key) : OpenSSLCipher(key, 0)
+            {
+                InitCipher();
+            }
+
+            CryptoBuffer AES_KeyWrap_Cipher_OpenSSL::EncryptBuffer(const CryptoBuffer& plainText)
+            {
+                if (!m_failure)
+                {
+                    m_workingKeyBuffer = CryptoBuffer({&m_workingKeyBuffer, (CryptoBuffer*) &plainText});
+                }
+                return CryptoBuffer();
+            }
+
+            CryptoBuffer AES_KeyWrap_Cipher_OpenSSL::FinalizeEncryption()
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(KEY_WRAP_TAG, "Cipher not properly initialized for encryption finalization. Aborting");
+                    return CryptoBuffer();
+                }
+
+                if (m_workingKeyBuffer.GetLength() < MIN_CEK_LENGTH_BYTES)
+                {
+                    AWS_LOGSTREAM_ERROR(KEY_WRAP_TAG, "Incorrect input length of " << m_workingKeyBuffer.GetLength());
+                    m_failure = true;
+                    return CryptoBuffer();
+                }
+
+                //the following is an in place implementation of
+                //RFC 3394 using the alternate in-place implementation.
+                //we use one in-place buffer instead of the copy at the end.
+                //the one letter variable names are meant to directly reflect the variables in the RFC
+                CryptoBuffer cipherText(m_workingKeyBuffer.GetLength() + BlockSizeBytes);
+
+                //put the integrity check register in the first 8 bytes of the final buffer.
+                memset(cipherText.GetUnderlyingData(), INTEGRITY_VALUE, BlockSizeBytes);
+                unsigned char* a = cipherText.GetUnderlyingData();
+
+                //put the register buffer after the integrity check register
+                memcpy(cipherText.GetUnderlyingData() + BlockSizeBytes, m_workingKeyBuffer.GetUnderlyingData(),
+                       m_workingKeyBuffer.GetLength());
+                unsigned char* r = cipherText.GetUnderlyingData() + BlockSizeBytes;
+
+                int n = static_cast<int>(m_workingKeyBuffer.GetLength() / BlockSizeBytes);
+
+                //temporary encryption buffer
+                CryptoBuffer b(BlockSizeBytes * 2);
+                int outLen = static_cast<int>(b.GetLength());
+
+                //concatenation buffer
+                CryptoBuffer tempInput(BlockSizeBytes * 2);
+
+                for (int j = 0; j <= 5; ++j)
+                {
+                    for (int i = 1; i <= n; ++i)
+                    {
+                        //concat A and R[i], A should be most significant and then R[i] should be least significant.
+                        memcpy(tempInput.GetUnderlyingData(), a, BlockSizeBytes);
+                        memcpy(tempInput.GetUnderlyingData() + BlockSizeBytes, r, BlockSizeBytes);
+
+                        //encrypt the concatenated A and R[I] and store it in B
+                        if (!EVP_EncryptUpdate(m_encryptor_ctx, b.GetUnderlyingData(), &outLen,
+                                               tempInput.GetUnderlyingData(), static_cast<int>(tempInput.GetLength())))
+                        {
+                            LogErrors(KEY_WRAP_TAG);
+                            m_failure = true;
+                            return CryptoBuffer();
+                        }
+
+                        unsigned char t = static_cast<unsigned char>((n * j) + i);
+                        //put the 64 MSB ^ T into A
+                        memcpy(a, b.GetUnderlyingData(), BlockSizeBytes);
+                        a[7] ^= t;
+                        //put the 64 LSB into R[i]
+                        memcpy(r, b.GetUnderlyingData() + BlockSizeBytes, BlockSizeBytes);
+                        //increment i -> R[i]
+                        r += BlockSizeBytes;
+                    }
+                    //reset R
+                    r = cipherText.GetUnderlyingData() + BlockSizeBytes;
+                }
+
+                return cipherText;
+            }
+
+            CryptoBuffer AES_KeyWrap_Cipher_OpenSSL::DecryptBuffer(const CryptoBuffer& cipherText)
+            {
+                if (!m_failure)
+                {
+                    m_workingKeyBuffer = CryptoBuffer({&m_workingKeyBuffer, (CryptoBuffer*)&cipherText});
+                }
+                return CryptoBuffer();
+            }
+
+            CryptoBuffer AES_KeyWrap_Cipher_OpenSSL::FinalizeDecryption()
+            {
+                if (m_failure)
+                {
+                    AWS_LOGSTREAM_FATAL(KEY_WRAP_TAG, "Cipher not properly initialized for decryption finalization. Aborting");
+                    return CryptoBuffer();
+                }
+
+                if (m_workingKeyBuffer.GetLength() < MIN_CEK_LENGTH_BYTES + BlockSizeBytes)
+                {
+                    AWS_LOGSTREAM_ERROR(KEY_WRAP_TAG, "Incorrect input length of " << m_workingKeyBuffer.GetLength());
+                    m_failure = true;
+                    return CryptoBuffer();
+                }
+
+                //the following is an in place implementation of
+                //RFC 3394 using the alternate in-place implementation.
+                //we use one in-place buffer instead of the copy at the end.
+                //the one letter variable names are meant to directly reflect the variables in the RFC
+                CryptoBuffer plainText(m_workingKeyBuffer.GetLength() - BlockSizeBytes);
+                memcpy(plainText.GetUnderlyingData(), m_workingKeyBuffer.GetUnderlyingData() + BlockSizeBytes, plainText.GetLength());
+
+                //integrity register should be the first 8 bytes of the cipher text
+                unsigned char* a = m_workingKeyBuffer.GetUnderlyingData();
+
+                //in-place register is the plaintext. For decryption, start at the last array position (8 bytes before the end);
+                unsigned char* r = plainText.GetUnderlyingData() + plainText.GetLength() - BlockSizeBytes;
+
+                int n = static_cast<int>(plainText.GetLength() / BlockSizeBytes);
+
+                //temporary encryption buffer
+                CryptoBuffer b(BlockSizeBytes * 10);
+                int outLen = static_cast<int>(b.GetLength());
+
+                //concatenation buffer
+                CryptoBuffer tempInput(BlockSizeBytes * 2);
+
+                for(int j = 5; j >= 0; --j)
+                {
+                    for(int i = n; i >= 1; --i)
+                    {
+                        //concat
+                        //A ^ t
+                        memcpy(tempInput.GetUnderlyingData(), a, BlockSizeBytes);
+                        unsigned char t = static_cast<unsigned char>((n * j) + i);
+                        tempInput[7] ^= t;
+                        //R[i]
+                        memcpy(tempInput.GetUnderlyingData() + BlockSizeBytes, r, BlockSizeBytes);
+
+                        //Decrypt the concatenated buffer
+                        if(!EVP_DecryptUpdate(m_decryptor_ctx, b.GetUnderlyingData(), &outLen,
+                                              tempInput.GetUnderlyingData(), static_cast<int>(tempInput.GetLength())))
+                        {
+                            m_failure = true;
+                            LogErrors(KEY_WRAP_TAG);
+                            return CryptoBuffer();
+                        }
+
+                        //set A to MSB 64 bits of decrypted result
+                        memcpy(a, b.GetUnderlyingData(), BlockSizeBytes);
+                        //set R[i] to LSB 64 bits of decrypted result
+                        memcpy(r, b.GetUnderlyingData() + BlockSizeBytes, BlockSizeBytes);
+                        //decrement i -> R[i]
+                        r -= BlockSizeBytes;
+                    }
+
+                    r = plainText.GetUnderlyingData() + plainText.GetLength() - BlockSizeBytes;
+                }
+
+                //here we perform the integrity check to make sure A == 0xA6A6A6A6A6A6A6A6
+                for(size_t i = 0; i < BlockSizeBytes; ++i)
+                {
+                    if(a[i] != INTEGRITY_VALUE)
+                    {
+                        m_failure = true;
+                        AWS_LOGSTREAM_ERROR(KEY_WRAP_TAG, "Integrity check failed for key wrap decryption.");
+                        return CryptoBuffer();
+                    }
+                }
+
+                return plainText;
+            }
+
+            void AES_KeyWrap_Cipher_OpenSSL::InitCipher()
+            {
+                if (m_failure || !CheckKeyAndIVLength(KeyLengthBits/8, 0))
+                {
+                    return;
+                }
+
+                if (!(EVP_EncryptInit_ex(m_encryptor_ctx, EVP_aes_256_ecb(), nullptr, m_key.GetUnderlyingData(), nullptr) &&
+                        EVP_CIPHER_CTX_set_padding(m_encryptor_ctx, 0)) ||
+                    !(EVP_DecryptInit_ex(m_decryptor_ctx, EVP_aes_256_ecb(), nullptr, m_key.GetUnderlyingData(), nullptr) &&
+                        EVP_CIPHER_CTX_set_padding(m_decryptor_ctx, 0)))
+                {
+                    m_failure = true;
+                    LogErrors(KEY_WRAP_TAG);
+                }
+            }
+
+            void AES_KeyWrap_Cipher_OpenSSL::Reset()
+            {
+                m_workingKeyBuffer = CryptoBuffer();
+                OpenSSLCipher::Reset();
+                InitCipher();
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventDecoderStream.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventDecoderStream.cpp
new file mode 100644
index 0000000000..5ecd2d0444
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventDecoderStream.cpp
@@ -0,0 +1,22 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/event/EventDecoderStream.h>
+#include <iostream>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            EventDecoderStream::EventDecoderStream(EventStreamDecoder& decoder, size_t bufferSize) :
+                Aws::IOStream(&m_eventStreamBuf),
+                m_eventStreamBuf(decoder, bufferSize)
+
+            {
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventEncoderStream.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventEncoderStream.cpp
new file mode 100644
index 0000000000..f8640f0e8c
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventEncoderStream.cpp
@@ -0,0 +1,28 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/event/EventEncoderStream.h>
+#include <iostream>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            EventEncoderStream::EventEncoderStream(size_t bufferSize) :
+                Aws::IOStream(&m_streambuf),
+                m_streambuf(bufferSize)
+            {
+            }
+
+            EventEncoderStream& EventEncoderStream::WriteEvent(const Aws::Utils::Event::Message& msg)
+            {
+                auto bits = m_encoder.EncodeAndSign(msg);
+                write(reinterpret_cast<char*>(bits.data()), bits.size());
+                return *this;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventHeader.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventHeader.cpp
new file mode 100644
index 0000000000..c3c989bedb
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventHeader.cpp
@@ -0,0 +1,107 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/event/EventHeader.h>
+#include <aws/core/utils/HashingUtils.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            static const int HASH_BOOL_TRUE = HashingUtils::HashString("BOOL_TRUE");
+            static const int HASH_BOOL_FALSE = HashingUtils::HashString("BOOL_FALSE");
+            static const int HASH_BYTE = HashingUtils::HashString("BYTE");
+            static const int HASH_INT16 = HashingUtils::HashString("INT16");
+            static const int HASH_INT32 = HashingUtils::HashString("INT32");
+            static const int HASH_INT64 = HashingUtils::HashString("INT64");
+            static const int HASH_BYTE_BUF = HashingUtils::HashString("BYTE_BUFFER");
+            static const int HASH_STRING = HashingUtils::HashString("STRING");
+            static const int HASH_TIMESTAMP = HashingUtils::HashString("TIMESTAMP");
+            static const int HASH_UUID = HashingUtils::HashString("UUID");
+
+            EventHeaderValue::EventHeaderType EventHeaderValue::GetEventHeaderTypeForName(const Aws::String& name)
+            {
+                int hashCode = Aws::Utils::HashingUtils::HashString(name.c_str());
+                if (hashCode == HASH_BOOL_TRUE)
+                {
+                    return EventHeaderType::BOOL_TRUE;
+                }
+                else if (hashCode == HASH_BOOL_FALSE)
+                {
+                    return EventHeaderType::BOOL_FALSE;
+                }
+                else if (hashCode == HASH_BYTE)
+                {
+                    return EventHeaderType::BYTE;
+                }
+                else if (hashCode == HASH_INT16)
+                {
+                    return EventHeaderType::INT16;
+                }
+                else if (hashCode == HASH_INT32)
+                {
+                    return EventHeaderType::INT32;
+                }
+                else if (hashCode == HASH_INT64)
+                {
+                    return EventHeaderType::INT64;
+                }
+                else if (hashCode == HASH_BYTE_BUF)
+                {
+                    return EventHeaderType::BYTE_BUF;
+                }
+                else if (hashCode == HASH_STRING)
+                {
+                    return EventHeaderType::STRING;
+                }
+                else if (hashCode == HASH_TIMESTAMP)
+                {
+                    return EventHeaderType::TIMESTAMP;
+                }
+                else if (hashCode == HASH_UUID)
+                {
+                    return EventHeaderType::UUID;
+                }
+                else
+                {
+                    return EventHeaderType::UNKNOWN;
+                }
+            }
+
+            Aws::String EventHeaderValue::GetNameForEventHeaderType(EventHeaderType value)
+            {
+                switch (value)
+                {
+                case EventHeaderType::BOOL_TRUE:
+                    return "BOOL_TRUE";
+                case EventHeaderType::BOOL_FALSE:
+                    return "BOOL_FALSE";
+                case EventHeaderType::BYTE:
+                    return "BYTE";
+                case EventHeaderType::INT16:
+                    return "INT16";
+                case EventHeaderType::INT32:
+                    return "INT32";
+                case EventHeaderType::INT64:
+                    return "INT64";
+                case EventHeaderType::BYTE_BUF:
+                    return "BYTE_BUF";
+                case EventHeaderType::STRING:
+                    return "STRING";
+                case EventHeaderType::TIMESTAMP:
+                    return "TIMESTAMP";
+                case EventHeaderType::UUID:
+                    return "UUID";
+                default:
+                    return "UNKNOWN";
+                }
+            }
+
+        }
+    }
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventMessage.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventMessage.cpp
new file mode 100644
index 0000000000..de8b904775
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventMessage.cpp
@@ -0,0 +1,132 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/event/EventMessage.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <algorithm>
+#include <iterator>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            const char EVENT_TYPE_HEADER[] = ":event-type";
+            const char CONTENT_TYPE_HEADER[] = ":content-type";
+            const char MESSAGE_TYPE_HEADER[] = ":message-type";
+            const char ERROR_CODE_HEADER[] = ":error-code";
+            const char ERROR_MESSAGE_HEADER[] = ":error-message";
+            const char EXCEPTION_TYPE_HEADER[] = ":exception-type";
+
+            static const int EVENT_HASH = HashingUtils::HashString("event");
+            static const int ERROR_HASH = HashingUtils::HashString("error");
+            static const int EXCEPTION_HASH = HashingUtils::HashString("exception");
+
+            static const int CONTENT_TYPE_APPLICATION_OCTET_STREAM_HASH = HashingUtils::HashString("application/octet-stream");
+            static const int CONTENT_TYPE_APPLICATION_JSON_HASH = HashingUtils::HashString("application/json");
+            static const int CONTENT_TYPE_TEXT_PLAIN_HASH = HashingUtils::HashString("text/plain");
+
+            Message::MessageType Message::GetMessageTypeForName(const Aws::String& name)
+            {
+                int hashCode = Aws::Utils::HashingUtils::HashString(name.c_str());
+                if (hashCode == EVENT_HASH)
+                {
+                    return MessageType::EVENT;
+                }
+                else if (hashCode == ERROR_HASH)
+                {
+                    return MessageType::REQUEST_LEVEL_ERROR;
+                }
+                else if (hashCode == EXCEPTION_HASH)
+                {
+                    return MessageType::REQUEST_LEVEL_EXCEPTION;
+                }
+                else
+                {
+                    return MessageType::UNKNOWN;
+                }
+            }
+
+            Aws::String Message::GetNameForMessageType(MessageType value)
+            {
+                switch (value)
+                {
+                case MessageType::EVENT:
+                    return "event";
+                case MessageType::REQUEST_LEVEL_ERROR:
+                    return "error";
+                case MessageType::REQUEST_LEVEL_EXCEPTION:
+                    return "exception";
+                default:
+                    return "unknown";
+                }
+            }
+
+            Message::ContentType Message::GetContentTypeForName(const Aws::String& name)
+            {
+                int hashCode = Aws::Utils::HashingUtils::HashString(name.c_str());
+                if (hashCode == CONTENT_TYPE_APPLICATION_OCTET_STREAM_HASH)
+                {
+                    return ContentType::APPLICATION_OCTET_STREAM;
+                }
+                else if (hashCode == CONTENT_TYPE_APPLICATION_JSON_HASH)
+                {
+                    return ContentType::APPLICATION_JSON;
+                }
+                else if (hashCode == CONTENT_TYPE_TEXT_PLAIN_HASH)
+                {
+                    return ContentType::TEXT_PLAIN;
+                }
+                else
+                {
+                    return ContentType::UNKNOWN;
+                }
+            }
+
+            Aws::String Message::GetNameForContentType(ContentType value)
+            {
+                switch (value)
+                {
+                case ContentType::APPLICATION_OCTET_STREAM:
+                    return "application/octet-stream";
+                case ContentType::APPLICATION_JSON:
+                    return "application/json";
+                case ContentType::TEXT_PLAIN:
+                    return "text/plain";
+                default:
+                    return "unknown";
+                }
+            }
+
+            void Message::Reset()
+            {
+                m_totalLength = 0;
+                m_headersLength = 0;
+                m_payloadLength = 0;
+
+                m_eventHeaders.clear();
+                m_eventPayload.clear();
+            }
+
+            void Message::WriteEventPayload(const unsigned char* data, size_t length)
+            {
+                std::copy(data, data + length, std::back_inserter(m_eventPayload));
+            }
+
+            void Message::WriteEventPayload(const Aws::Vector<unsigned char>& bits)
+            {
+                std::copy(bits.cbegin(), bits.cend(), std::back_inserter(m_eventPayload));
+            }
+
+            void Message::WriteEventPayload(const Aws::String& bits)
+            {
+                std::copy(bits.cbegin(), bits.cend(), std::back_inserter(m_eventPayload));
+            }
+
+        } // namespace Event
+    } // namespace Utils
+} // namespace Aws
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamBuf.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamBuf.cpp
new file mode 100644
index 0000000000..6a1766bb9f
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamBuf.cpp
@@ -0,0 +1,147 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/event/EventStreamBuf.h>
+#include <cassert>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            const size_t DEFAULT_BUF_SIZE = 1024;
+
+            EventStreamBuf::EventStreamBuf(EventStreamDecoder& decoder, size_t bufferLength) :
+                m_byteBuffer(bufferLength),
+                m_bufferLength(bufferLength),
+                m_decoder(decoder)
+            {
+                assert(decoder);
+                char* begin = reinterpret_cast<char*>(m_byteBuffer.GetUnderlyingData());
+                char* end = begin + bufferLength - 1;
+
+                setp(begin, end);
+                setg(begin, begin, begin);
+            }
+
+            EventStreamBuf::~EventStreamBuf()
+            {
+                if (m_decoder)
+                {
+                    writeToDecoder();
+                }
+            }
+
+            void EventStreamBuf::writeToDecoder()
+            {
+                if (pptr() > pbase())
+                {
+                    size_t length = static_cast<size_t>(pptr() - pbase());
+                    m_decoder.Pump(m_byteBuffer, length);
+
+                    if (!m_decoder)
+                    {
+                        m_err.write(reinterpret_cast<char*>(m_byteBuffer.GetUnderlyingData()), length);
+                    }
+                    else
+                    {
+                        pbump(-static_cast<int>(length));
+                    }
+                }
+            }
+
+            std::streampos EventStreamBuf::seekoff(std::streamoff off, std::ios_base::seekdir dir, std::ios_base::openmode which)
+            {
+                if (dir == std::ios_base::beg)
+                {
+                    return seekpos(off, which);
+                }
+                else if (dir == std::ios_base::end)
+                {
+                    return seekpos(m_bufferLength - 1 - off, which);
+                }
+                else if (dir == std::ios_base::cur)
+                {
+                    if (which == std::ios_base::in)
+                    {
+                        return seekpos((gptr() - (char*)m_byteBuffer.GetUnderlyingData()) + off, which);
+                    }
+                    if (which == std::ios_base::out)
+                    {
+                        return seekpos((pptr() - (char*)m_byteBuffer.GetUnderlyingData()) + off, which);
+                    }
+                }
+
+                return std::streamoff(-1);
+            }
+
+            std::streampos EventStreamBuf::seekpos(std::streampos pos, std::ios_base::openmode which)
+            {
+                assert(static_cast<size_t>(pos) <= m_bufferLength);
+                if (static_cast<size_t>(pos) > m_bufferLength)
+                {
+                    return std::streampos(std::streamoff(-1));
+                }
+
+                if (which == std::ios_base::in)
+                {
+                    m_err.seekg(pos);
+                    return m_err.tellg();
+                }
+
+                if (which == std::ios_base::out)
+                {
+                    return pos;
+                }
+
+                return std::streampos(std::streamoff(-1));
+            }
+
+            int EventStreamBuf::underflow()
+            {
+                if (!m_err || m_err.eof() || m_decoder)
+                {
+                    return std::char_traits<char>::eof();
+                }
+
+                m_err.flush();
+                m_err.read(reinterpret_cast<char*>(m_byteBuffer.GetUnderlyingData()), m_byteBuffer.GetLength());
+
+                char* begin = reinterpret_cast<char*>(m_byteBuffer.GetUnderlyingData());
+                setg(begin, begin, begin + m_err.gcount());
+                return std::char_traits<char>::to_int_type(*gptr());
+            }
+
+            int EventStreamBuf::overflow(int ch)
+            {
+                auto eof = std::char_traits<char>::eof();
+
+                if (m_decoder)
+                {
+                    if (ch != eof)
+                    {
+                        *pptr() = (char)ch;
+                        pbump(1);
+                    }
+
+                    writeToDecoder();
+                    return ch;
+                }
+
+                return eof;
+            }
+
+            int EventStreamBuf::sync()
+            {
+                if (m_decoder)
+                {
+                    writeToDecoder();
+                }
+
+                return 0;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamDecoder.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamDecoder.cpp
new file mode 100644
index 0000000000..f70a6c88f6
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamDecoder.cpp
@@ -0,0 +1,170 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/common/common.h>
+#include <aws/core/utils/event/EventHeader.h>
+#include <aws/core/utils/event/EventMessage.h>
+#include <aws/core/utils/event/EventStreamDecoder.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/utils/UnreferencedParam.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            static const char EVENT_STREAM_DECODER_CLASS_TAG[] = "Aws::Utils::Event::EventStreamDecoder";
+
+            EventStreamDecoder::EventStreamDecoder(EventStreamHandler* handler) : m_eventStreamHandler(handler)
+            {
+                aws_event_stream_streaming_decoder_init(&m_decoder,
+                    get_aws_allocator(),
+                    onPayloadSegment,
+                    onPreludeReceived,
+                    onHeaderReceived,
+                    onError,
+                    (void*)handler);
+            }
+
+            EventStreamDecoder::~EventStreamDecoder()
+            {
+                aws_event_stream_streaming_decoder_clean_up(&m_decoder);
+            }
+
+            void EventStreamDecoder::Pump(const ByteBuffer& data)
+            {
+                Pump(data, data.GetLength());
+            }
+
+            void EventStreamDecoder::Pump(const ByteBuffer& data, size_t length)
+            {
+                aws_byte_buf dataBuf = aws_byte_buf_from_array(static_cast<uint8_t*>(data.GetUnderlyingData()), length);
+                aws_event_stream_streaming_decoder_pump(&m_decoder, &dataBuf);
+            }
+
+            void EventStreamDecoder::Reset()
+            {
+                m_eventStreamHandler->Reset();
+            }
+
+            void EventStreamDecoder::ResetEventStreamHandler(EventStreamHandler* handler)
+            {
+                aws_event_stream_streaming_decoder_init(&m_decoder, get_aws_allocator(),
+                    onPayloadSegment,
+                    onPreludeReceived,
+                    onHeaderReceived,
+                    onError,
+                    reinterpret_cast<void *>(handler));
+            }
+
+            void EventStreamDecoder::onPayloadSegment(
+                aws_event_stream_streaming_decoder* decoder,
+                aws_byte_buf* payload,
+                int8_t isFinalSegment,
+                void* context)
+            {
+                AWS_UNREFERENCED_PARAM(decoder);
+                auto handler = static_cast<EventStreamHandler*>(context);
+                assert(handler);
+                if (!handler)
+                {
+                    AWS_LOGSTREAM_ERROR(EVENT_STREAM_DECODER_CLASS_TAG, "Payload received, but decoder encountered internal errors before."
+                        "ErrorCode: " << EventStreamErrorsMapper::GetNameForError(handler->GetInternalError()) << ", "
+                        "ErrorMessage: " << handler->GetEventPayloadAsString());
+                    return;
+                }
+                handler->WriteMessageEventPayload(static_cast<unsigned char*>(payload->buffer), payload->len);
+
+                // Complete payload received
+                if (isFinalSegment == 1)
+                {
+                    assert(handler->IsMessageCompleted());
+                    handler->OnEvent();
+                    handler->Reset();
+                }
+            }
+
+            void EventStreamDecoder::onPreludeReceived(
+                aws_event_stream_streaming_decoder* decoder,
+                aws_event_stream_message_prelude* prelude,
+                void* context)
+            {
+                AWS_UNREFERENCED_PARAM(decoder);
+                auto handler = static_cast<EventStreamHandler*>(context);
+                handler->Reset();
+                
+                //Encounter internal error in prelude received.
+                //This error will be handled by OnError callback function later.
+                if (prelude->total_len < prelude->headers_len + 16)
+                {
+                    return;
+                }
+                handler->SetMessageMetadata(prelude->total_len, prelude->headers_len,
+                    prelude->total_len - prelude->headers_len - 4/*total byte-length*/ - 4/*headers byte-length*/ - 4/*prelude crc*/ - 4/*message crc*/);
+                AWS_LOGSTREAM_TRACE(EVENT_STREAM_DECODER_CLASS_TAG, "Message received, the expected length of the message is: " << prelude->total_len <<
+                                                                    " bytes, and the expected length of the header is: " << prelude->headers_len << " bytes");
+
+                //Handle empty message 
+                //if (handler->m_message.GetHeadersLength() == 0 && handler->m_message.GetPayloadLength() == 0)
+                if (handler->IsMessageCompleted())
+                {
+                    handler->OnEvent();
+                    handler->Reset();
+                }
+            }
+
+            void EventStreamDecoder::onHeaderReceived(
+                aws_event_stream_streaming_decoder* decoder,
+                aws_event_stream_message_prelude* prelude,
+                aws_event_stream_header_value_pair* header,
+                void* context)
+            {
+                AWS_UNREFERENCED_PARAM(decoder);
+                AWS_UNREFERENCED_PARAM(prelude);
+                auto handler = static_cast<EventStreamHandler*>(context);
+                assert(handler);
+                if (!handler)
+                {
+                    AWS_LOGSTREAM_ERROR(EVENT_STREAM_DECODER_CLASS_TAG, "Payload received, but decoder encountered internal errors before."
+                        "ErrorCode: " << EventStreamErrorsMapper::GetNameForError(handler->GetInternalError()) << ", "
+                        "ErrorMessage: " << handler->GetEventPayloadAsString());
+                    return;
+                }
+
+                // The length of a header = 1 byte (to represent the length of header name) + length of header name + 1 byte (to represent header type)
+                //                          + 2 bytes (to represent length of header value) + length of header value
+                handler->InsertMessageEventHeader(Aws::String(header->header_name, header->header_name_len),
+                    1 + header->header_name_len + 1 + 2 + header->header_value_len, EventHeaderValue(header));
+
+                // Handle messages only have headers, but without payload.
+                //if (handler->m_message.GetHeadersLength() == handler->m_headersBytesReceived() && handler->m_message.GetPayloadLength() == 0)
+                if (handler->IsMessageCompleted())
+                {
+                    handler->OnEvent();
+                    handler->Reset();
+                }
+            }
+
+            void EventStreamDecoder::onError(
+                aws_event_stream_streaming_decoder* decoder,
+                aws_event_stream_message_prelude* prelude,
+                int error_code,
+                const char* message,
+                void* context)
+            {
+                AWS_UNREFERENCED_PARAM(decoder);
+                AWS_UNREFERENCED_PARAM(prelude);
+                auto handler = static_cast<EventStreamHandler*>(context);
+                handler->SetFailure();
+                handler->SetInternalError(error_code);
+                handler->WriteMessageEventPayload(reinterpret_cast<const unsigned char*>(message), strlen(message));
+                handler->OnEvent();
+            }
+        } // namespace Event
+    } // namespace Utils
+} // namespace Aws
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamEncoder.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamEncoder.cpp
new file mode 100644
index 0000000000..ef7104e839
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamEncoder.cpp
@@ -0,0 +1,162 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/event/EventHeader.h>
+#include <aws/core/utils/event/EventMessage.h>
+#include <aws/core/utils/event/EventStreamEncoder.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <aws/core/auth/AWSAuthSigner.h>
+#include <aws/common/byte_order.h>
+#include <aws/core/utils/memory/AWSMemory.h>
+
+#include <cassert>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            static const char TAG[] = "EventStreamEncoder";
+
+            static void EncodeHeaders(const Aws::Utils::Event::Message& msg, aws_array_list* headers)
+            {
+                aws_array_list_init_dynamic(headers, get_aws_allocator(), msg.GetEventHeaders().size(), sizeof(aws_event_stream_header_value_pair));
+                for (auto&& header : msg.GetEventHeaders())
+                {
+                    const uint8_t headerKeyLen = static_cast<uint8_t>(header.first.length());
+                    switch(header.second.GetType())
+                    {
+                        case EventHeaderValue::EventHeaderType::BOOL_TRUE:
+                        case EventHeaderValue::EventHeaderType::BOOL_FALSE:
+                            aws_event_stream_add_bool_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsBoolean());
+                            break;
+                        case EventHeaderValue::EventHeaderType::BYTE:
+                            aws_event_stream_add_bool_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsByte());
+                            break;
+                        case EventHeaderValue::EventHeaderType::INT16:
+                            aws_event_stream_add_int16_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsInt16());
+                            break;
+                        case EventHeaderValue::EventHeaderType::INT32:
+                            aws_event_stream_add_int32_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsInt32());
+                            break;
+                        case EventHeaderValue::EventHeaderType::INT64:
+                            aws_event_stream_add_int64_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsInt64());
+                            break;
+                        case EventHeaderValue::EventHeaderType::BYTE_BUF:
+                            {
+                                const auto& bytes = header.second.GetEventHeaderValueAsBytebuf();
+                                aws_event_stream_add_bytebuf_header(headers, header.first.c_str(), headerKeyLen, bytes.GetUnderlyingData(), static_cast<uint16_t>(bytes.GetLength()), 1 /*copy*/);
+                            }
+                            break;
+                        case EventHeaderValue::EventHeaderType::STRING:
+                            {
+                                const auto& bytes = header.second.GetUnderlyingBuffer();
+                                aws_event_stream_add_string_header(headers, header.first.c_str(), headerKeyLen, reinterpret_cast<char*>(bytes.GetUnderlyingData()), static_cast<uint16_t>(bytes.GetLength()), 0 /*copy*/);
+                            }
+                            break;
+                        case EventHeaderValue::EventHeaderType::TIMESTAMP:
+                            aws_event_stream_add_timestamp_header(headers, header.first.c_str(), headerKeyLen, header.second.GetEventHeaderValueAsTimestamp());
+                            break;
+                        case EventHeaderValue::EventHeaderType::UUID:
+                            {
+                                ByteBuffer uuidBytes = header.second.GetEventHeaderValueAsUuid();
+                                aws_event_stream_add_uuid_header(headers, header.first.c_str(), headerKeyLen, uuidBytes.GetUnderlyingData());
+                            }
+                            break;
+                        default:
+                            AWS_LOG_ERROR(TAG, "Encountered unknown type of header.");
+                            break;
+                    }
+                }
+            }
+
+            EventStreamEncoder::EventStreamEncoder(Client::AWSAuthSigner* signer) : m_signer(signer)
+            {
+            }
+
+
+            Aws::Vector<unsigned char> EventStreamEncoder::EncodeAndSign(const Aws::Utils::Event::Message& msg)
+            {
+                aws_event_stream_message encoded = Encode(msg);
+                aws_event_stream_message signedMessage = Sign(&encoded);
+
+                const auto signedMessageLength = signedMessage.message_buffer ? aws_event_stream_message_total_length(&signedMessage) : 0;
+
+                Aws::Vector<unsigned char> outputBits(signedMessage.message_buffer, signedMessage.message_buffer + signedMessageLength);
+                aws_event_stream_message_clean_up(&encoded);
+                aws_event_stream_message_clean_up(&signedMessage);
+                return outputBits;
+            }
+
+            aws_event_stream_message EventStreamEncoder::Encode(const Aws::Utils::Event::Message& msg)
+            {
+                aws_array_list headers;
+                EncodeHeaders(msg, &headers);
+
+                aws_byte_buf payload;
+                payload.len = msg.GetEventPayload().size();
+                // this const_cast is OK because aws_byte_buf will only be "read from" by the following functions.
+                payload.buffer = const_cast<uint8_t*>(msg.GetEventPayload().data());
+                payload.capacity = 0;
+                payload.allocator = nullptr;
+
+                aws_event_stream_message encoded;
+                if(aws_event_stream_message_init(&encoded, get_aws_allocator(), &headers, &payload) == AWS_OP_ERR)
+                {
+                    AWS_LOGSTREAM_ERROR(TAG, "Error creating event-stream message from payload.");
+                    aws_event_stream_headers_list_cleanup(&headers);
+                    // GCC 4.9.4 issues a warning with -Wextra if we simply do
+                    // return {};
+                    aws_event_stream_message empty{nullptr, nullptr, 0};
+                    return empty;
+                }
+                aws_event_stream_headers_list_cleanup(&headers);
+                return encoded;
+            }
+
+            aws_event_stream_message EventStreamEncoder::Sign(aws_event_stream_message* msg)
+            {
+                const auto msglen = msg->message_buffer ? aws_event_stream_message_total_length(msg) : 0;
+                Event::Message signedMessage;
+                signedMessage.WriteEventPayload(msg->message_buffer, msglen);
+
+                assert(m_signer);
+                if (!m_signer->SignEventMessage(signedMessage, m_signatureSeed))
+                {
+                    AWS_LOGSTREAM_ERROR(TAG, "Failed to sign event message frame.");
+                    // GCC 4.9.4 issues a warning with -Wextra if we simply do
+                    // return {};
+                    aws_event_stream_message empty{nullptr, nullptr, 0};
+                    return empty;
+                }
+
+                aws_array_list headers;
+                EncodeHeaders(signedMessage, &headers);
+
+                aws_byte_buf payload;
+                payload.len = signedMessage.GetEventPayload().size();
+                payload.buffer = signedMessage.GetEventPayload().data();
+                payload.capacity = 0;
+                payload.allocator = nullptr;
+
+                aws_event_stream_message signedmsg;
+                if(aws_event_stream_message_init(&signedmsg, get_aws_allocator(), &headers, &payload))
+                {
+                    AWS_LOGSTREAM_ERROR(TAG, "Error creating event-stream message from payload.");
+                    aws_event_stream_headers_list_cleanup(&headers);
+                    // GCC 4.9.4 issues a warning with -Wextra if we simply do
+                    // return {};
+                    aws_event_stream_message empty{nullptr, nullptr, 0};
+                    return empty;
+                }
+                aws_event_stream_headers_list_cleanup(&headers);
+                return signedmsg;
+            }
+
+        } // namespace Event
+    } // namespace Utils
+} // namespace Aws
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamErrors.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamErrors.cpp
new file mode 100644
index 0000000000..836d0b47c5
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/event/EventStreamErrors.cpp
@@ -0,0 +1,66 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/client/AWSError.h>
+#include <aws/core/utils/HashingUtils.h>
+#include <aws/core/utils/event/EventStreamErrors.h>
+
+ using namespace Aws::Client;
+// using namespace Aws::S3;
+// using namespace Aws::Utils;
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Event
+        {
+            namespace EventStreamErrorsMapper
+            {
+                /*
+                static const int EVENT_STREAM_NO_ERROR_HASH = HashingUtils::HashString("EventStreamNoError");
+                static const int EVENT_STREAM_BUFFER_LENGTH_MISMATCH_HASH = HashingUtils::HashString("EventStreamBufferLengthMismatch");
+                static const int EVENT_STREAM_INSUFFICIENT_BUFFER_LEN_HASH = HashingUtils::HashString("EventStreamInsufficientBufferLen");
+                static const int EVENT_STREAM_MESSAGE_FIELD_SIZE_EXCEEDED_HASH = HashingUtils::HashString("EventStreamMessageFieldSizeExceeded");
+                static const int EVENT_STREAM_PRELUDE_CHECKSUM_FAILURE_HASH = HashingUtils::HashString("EventStreamPreludeChecksumFailure");
+                static const int EVENT_STREAM_MESSAGE_CHECKSUM_FAILURE_HASH = HashingUtils::HashString("EventStreamMessageChecksumFailure");
+                static const int EVENT_STREAM_MESSAGE_INVALID_HEADERS_LEN_HASH = HashingUtils::HashString("EventStreamMessageInvalidHeadersLen");
+                static const int EVENT_STREAM_MESSAGE_UNKNOWN_HEADER_TYPE_HASH = HashingUtils::HashString("EventStreamMessageUnknownHeaderType");
+                static const int EVENT_STREAM_MESSAGE_PARSER_ILLEGAL_STATE_HASH = HashingUtils::HashString("EventStreamMessageParserIllegalState");
+                */
+                const char* GetNameForError(EventStreamErrors error)
+                {
+                    switch (error)
+                    {
+                    case EventStreamErrors::EVENT_STREAM_NO_ERROR:
+                        return "EventStreamNoError";
+                    case EventStreamErrors::EVENT_STREAM_BUFFER_LENGTH_MISMATCH:
+                        return "EventStreamBufferLengthMismatch";
+                    case EventStreamErrors::EVENT_STREAM_INSUFFICIENT_BUFFER_LEN:
+                        return "EventStreamInsufficientBufferLen";
+                    case EventStreamErrors::EVENT_STREAM_MESSAGE_FIELD_SIZE_EXCEEDED:
+                        return "EventStreamMessageFieldSizeExceeded";
+                    case EventStreamErrors::EVENT_STREAM_PRELUDE_CHECKSUM_FAILURE:
+                        return "EventStreamPreludeChecksumFailure";
+                    case EventStreamErrors::EVENT_STREAM_MESSAGE_CHECKSUM_FAILURE:
+                        return "EventStreamMessageChecksumFailure";
+                    case EventStreamErrors::EVENT_STREAM_MESSAGE_INVALID_HEADERS_LEN:
+                        return "EventStreamMessageInvalidHeadersLen";
+                    case EventStreamErrors::EVENT_STREAM_MESSAGE_UNKNOWN_HEADER_TYPE:
+                        return "EventStreamMessageUnknownHeaderType";
+                    case EventStreamErrors::EVENT_STREAM_MESSAGE_PARSER_ILLEGAL_STATE:
+                        return "EventStreamMessageParserIllegalState";
+                    default:
+                        return "EventStreamUnknownError";
+                    }
+                }
+
+                AWSError<CoreErrors> GetAwsErrorForEventStreamError(EventStreamErrors error)
+                {
+                    return AWSError<CoreErrors>(CoreErrors::UNKNOWN, GetNameForError(error), "", false);
+                }
+            } // namespace EventStreamErrorsMapper
+        } // namespace Event
+    } // namespace Utils
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/json/JsonSerializer.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/json/JsonSerializer.cpp
new file mode 100644
index 0000000000..9b785d1995
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/json/JsonSerializer.cpp
@@ -0,0 +1,665 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/json/JsonSerializer.h>
+
+#include <iterator>
+#include <algorithm>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+#include <aws/core/utils/StringUtils.h>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Json;
+
+JsonValue::JsonValue() : m_wasParseSuccessful(true)
+{
+    m_value = nullptr;
+}
+
+JsonValue::JsonValue(cJSON* value) :
+    m_value(cJSON_Duplicate(value, true /* recurse */)),
+    m_wasParseSuccessful(true)
+{
+}
+
+JsonValue::JsonValue(const Aws::String& value) : m_wasParseSuccessful(true)
+{
+    const char* return_parse_end;
+    m_value = cJSON_ParseWithOpts(value.c_str(), &return_parse_end, 1/*require_null_terminated*/);
+
+    if (!m_value || cJSON_IsInvalid(m_value))
+    {
+        m_wasParseSuccessful = false;
+        m_errorMessage = "Failed to parse JSON at: ";
+        m_errorMessage += return_parse_end;
+    }
+}
+
+JsonValue::JsonValue(Aws::IStream& istream) : m_wasParseSuccessful(true)
+{
+    Aws::StringStream memoryStream;
+    std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), std::ostreambuf_iterator<char>(memoryStream));
+    const char* return_parse_end;
+    const auto input = memoryStream.str();
+    m_value = cJSON_ParseWithOpts(input.c_str(), &return_parse_end, 1/*require_null_terminated*/);
+
+    if (!m_value || cJSON_IsInvalid(m_value))
+    {
+        m_wasParseSuccessful = false;
+        m_errorMessage = "Failed to parse JSON. Invalid input at: ";
+        m_errorMessage += return_parse_end;
+    }
+}
+
+JsonValue::JsonValue(const JsonValue& value) :
+    m_value(cJSON_Duplicate(value.m_value, true/*recurse*/)),
+    m_wasParseSuccessful(value.m_wasParseSuccessful),
+    m_errorMessage(value.m_errorMessage)
+{
+}
+
+JsonValue::JsonValue(JsonValue&& value) :
+    m_value(value.m_value),
+    m_wasParseSuccessful(value.m_wasParseSuccessful),
+    m_errorMessage(std::move(value.m_errorMessage))
+{
+    value.m_value = nullptr;
+}
+
+void JsonValue::Destroy()
+{
+    cJSON_Delete(m_value);
+}
+
+JsonValue::~JsonValue()
+{
+    Destroy();
+}
+
+JsonValue& JsonValue::operator=(const JsonValue& other)
+{
+    if (this == &other)
+    {
+        return *this;
+    }
+
+    Destroy();
+    m_value = cJSON_Duplicate(other.m_value, true /*recurse*/);
+    m_wasParseSuccessful = other.m_wasParseSuccessful;
+    m_errorMessage = other.m_errorMessage;
+    return *this;
+}
+
+JsonValue& JsonValue::operator=(JsonValue&& other)
+{
+    if (this == &other)
+    {
+        return *this;
+    }
+
+    using std::swap;
+    swap(m_value, other.m_value);
+    swap(m_errorMessage, other.m_errorMessage);
+    m_wasParseSuccessful = other.m_wasParseSuccessful;
+    return *this;
+}
+
+static void AddOrReplace(cJSON* root, const char* key, cJSON* value)
+{
+    const auto existing = cJSON_GetObjectItemCaseSensitive(root, key);
+    if (existing)
+    {
+        cJSON_ReplaceItemInObjectCaseSensitive(root, key, value);
+    }
+    else
+    {
+        cJSON_AddItemToObject(root, key, value);
+    }
+}
+
+JsonValue& JsonValue::WithString(const char* key, const Aws::String& value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    const auto val = cJSON_CreateString(value.c_str());
+    AddOrReplace(m_value, key, val);
+    return *this;
+}
+
+JsonValue& JsonValue::WithString(const Aws::String& key, const Aws::String& value)
+{
+    return WithString(key.c_str(), value);
+}
+
+JsonValue& JsonValue::AsString(const Aws::String& value)
+{
+    Destroy();
+    m_value = cJSON_CreateString(value.c_str());
+    return *this;
+}
+
+JsonValue& JsonValue::WithBool(const char* key, bool value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    const auto val = cJSON_CreateBool(value);
+    AddOrReplace(m_value, key, val);
+    return *this;
+}
+
+JsonValue& JsonValue::WithBool(const Aws::String& key, bool value)
+{
+    return WithBool(key.c_str(), value);
+}
+
+JsonValue& JsonValue::AsBool(bool value)
+{
+    Destroy();
+    m_value = cJSON_CreateBool(value);
+    return *this;
+}
+
+JsonValue& JsonValue::WithInteger(const char* key, int value)
+{
+    return WithDouble(key, static_cast<double>(value));
+}
+
+JsonValue& JsonValue::WithInteger(const Aws::String& key, int value)
+{
+    return WithDouble(key.c_str(), static_cast<double>(value));
+}
+
+JsonValue& JsonValue::AsInteger(int value)
+{
+    Destroy();
+    m_value = cJSON_CreateNumber(static_cast<double>(value));
+    return *this;
+}
+
+JsonValue& JsonValue::WithInt64(const char* key, long long value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    const auto val = cJSON_CreateInt64(value);
+    AddOrReplace(m_value, key, val);
+    return *this;
+}
+
+JsonValue& JsonValue::WithInt64(const Aws::String& key, long long value)
+{
+    return WithInt64(key.c_str(), value);
+}
+
+JsonValue& JsonValue::AsInt64(long long value)
+{
+    Destroy();
+    m_value = cJSON_CreateInt64(value);
+    return *this;
+}
+
+JsonValue& JsonValue::WithDouble(const char* key, double value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    const auto val = cJSON_CreateNumber(value);
+    AddOrReplace(m_value, key, val);
+    return *this;
+}
+
+JsonValue& JsonValue::WithDouble(const Aws::String& key, double value)
+{
+    return WithDouble(key.c_str(), value);
+}
+
+JsonValue& JsonValue::AsDouble(double value)
+{
+    Destroy();
+    m_value = cJSON_CreateNumber(value);
+    return *this;
+}
+
+JsonValue& JsonValue::WithArray(const char* key, const Array<Aws::String>& array)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    auto arrayValue = cJSON_CreateArray();
+    for (unsigned i = 0; i < array.GetLength(); ++i)
+    {
+        cJSON_AddItemToArray(arrayValue, cJSON_CreateString(array[i].c_str()));
+    }
+
+    AddOrReplace(m_value, key, arrayValue);
+    return *this;
+}
+
+JsonValue& JsonValue::WithArray(const Aws::String& key, const Array<Aws::String>& array)
+{
+    return WithArray(key.c_str(), array);
+}
+
+JsonValue& JsonValue::WithArray(const Aws::String& key, const Array<JsonValue>& array)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    auto arrayValue = cJSON_CreateArray();
+    for (unsigned i = 0; i < array.GetLength(); ++i)
+    {
+        cJSON_AddItemToArray(arrayValue, cJSON_Duplicate(array[i].m_value, true /*recurse*/));
+    }
+
+    AddOrReplace(m_value, key.c_str(), arrayValue);
+    return *this;
+}
+
+JsonValue& JsonValue::WithArray(const Aws::String& key, Array<JsonValue>&& array)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    auto arrayValue = cJSON_CreateArray();
+    for (unsigned i = 0; i < array.GetLength(); ++i)
+    {
+        cJSON_AddItemToArray(arrayValue, array[i].m_value);
+        array[i].m_value = nullptr;
+    }
+
+    AddOrReplace(m_value, key.c_str(), arrayValue);
+    return *this;
+}
+
+JsonValue& JsonValue::AsArray(const Array<JsonValue>& array)
+{
+    auto arrayValue = cJSON_CreateArray();
+    for (unsigned i = 0; i < array.GetLength(); ++i)
+    {
+        cJSON_AddItemToArray(arrayValue, cJSON_Duplicate(array[i].m_value, true /*recurse*/));
+    }
+
+    Destroy();
+    m_value = arrayValue;
+    return *this;
+}
+
+JsonValue& JsonValue::AsArray(Array<JsonValue>&& array)
+{
+    auto arrayValue = cJSON_CreateArray();
+    for (unsigned i = 0; i < array.GetLength(); ++i)
+    {
+        cJSON_AddItemToArray(arrayValue, array[i].m_value);
+        array[i].m_value = nullptr;
+    }
+
+    Destroy();
+    m_value = arrayValue;
+    return *this;
+}
+
+JsonValue& JsonValue::WithObject(const char* key, const JsonValue& value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    const auto copy = value.m_value == nullptr ? cJSON_CreateObject() : cJSON_Duplicate(value.m_value, true /*recurse*/);
+    AddOrReplace(m_value, key, copy);
+    return *this;
+}
+
+JsonValue& JsonValue::WithObject(const Aws::String& key, const JsonValue& value)
+{
+    return WithObject(key.c_str(), value);
+}
+
+JsonValue& JsonValue::WithObject(const char* key, JsonValue&& value)
+{
+    if (!m_value)
+    {
+        m_value = cJSON_CreateObject();
+    }
+
+    AddOrReplace(m_value, key, value.m_value == nullptr ? cJSON_CreateObject() : value.m_value);
+    value.m_value = nullptr;
+    return *this;
+}
+
+JsonValue& JsonValue::WithObject(const Aws::String& key, JsonValue&& value)
+{
+    return WithObject(key.c_str(), std::move(value));
+}
+
+JsonValue& JsonValue::AsObject(const JsonValue& value)
+{
+    *this = value;
+    return *this;
+}
+
+JsonValue& JsonValue::AsObject(JsonValue && value)
+{
+    *this = std::move(value);
+    return *this;
+}
+
+bool JsonValue::operator==(const JsonValue& other) const
+{
+    return cJSON_Compare(m_value, other.m_value, true /*case-sensitive*/) != 0;
+}
+
+bool JsonValue::operator!=(const JsonValue& other) const
+{
+    return !(*this == other);
+}
+
+JsonView JsonValue::View() const
+{
+    return *this;
+}
+
+JsonView::JsonView() : m_value(nullptr)
+{
+}
+
+JsonView::JsonView(const JsonValue& val) : m_value(val.m_value)
+{
+}
+
+JsonView::JsonView(cJSON* val) : m_value(val)
+{
+}
+
+JsonView& JsonView::operator=(const JsonValue& v)
+{
+    m_value = v.m_value;
+    return *this;
+}
+
+JsonView& JsonView::operator=(cJSON* val)
+{
+    m_value = val;
+    return *this;
+}
+
+Aws::String JsonView::GetString(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    auto str = cJSON_GetStringValue(item);
+    return str ? str : "";
+}
+
+Aws::String JsonView::AsString() const
+{
+    const char* str = cJSON_GetStringValue(m_value);
+    if (str == nullptr)
+    {
+        return {};
+    }
+    return str;
+}
+
+bool JsonView::GetBool(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    assert(item);
+    return item->valueint != 0;
+}
+
+bool JsonView::AsBool() const
+{
+    assert(cJSON_IsBool(m_value));
+    return cJSON_IsTrue(m_value) != 0;
+}
+
+int JsonView::GetInteger(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    assert(item);
+    return item->valueint;
+}
+
+int JsonView::AsInteger() const
+{
+    assert(cJSON_IsNumber(m_value)); // can be double or value larger than int_max, but at least not UB
+    return m_value->valueint;
+}
+
+int64_t JsonView::GetInt64(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    assert(item);
+    if (item->valuestring)
+    {
+        return Aws::Utils::StringUtils::ConvertToInt64(item->valuestring);
+    }
+    else
+    {
+        return static_cast<int64_t>(item->valuedouble);
+    }
+}
+
+int64_t JsonView::AsInt64() const
+{
+    assert(cJSON_IsNumber(m_value));
+    if (m_value->valuestring)
+    {
+        return Aws::Utils::StringUtils::ConvertToInt64(m_value->valuestring);
+    }
+    else
+    {
+        return static_cast<int64_t>(m_value->valuedouble);
+    }
+}
+
+double JsonView::GetDouble(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    assert(item);
+    return item->valuedouble;
+}
+
+double JsonView::AsDouble() const
+{
+    assert(cJSON_IsNumber(m_value));
+    return m_value->valuedouble;
+}
+
+JsonView JsonView::GetObject(const Aws::String& key) const
+{
+    assert(m_value);
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    return item;
+}
+
+JsonView JsonView::AsObject() const
+{
+    assert(cJSON_IsObject(m_value) || cJSON_IsNull(m_value));
+    return m_value;
+}
+
+Array<JsonView> JsonView::GetArray(const Aws::String& key) const
+{
+    assert(m_value);
+    auto array = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    assert(cJSON_IsArray(array));
+    Array<JsonView> returnArray(cJSON_GetArraySize(array));
+
+    auto element = array->child;
+    for (unsigned i = 0; element && i < returnArray.GetLength(); ++i, element = element->next)
+    {
+        returnArray[i] = element;
+    }
+
+    return returnArray;
+}
+
+Array<JsonView> JsonView::AsArray() const
+{
+    assert(cJSON_IsArray(m_value));
+    Array<JsonView> returnArray(cJSON_GetArraySize(m_value));
+
+    auto element = m_value->child;
+
+    for (unsigned i = 0; element && i < returnArray.GetLength(); ++i, element = element->next)
+    {
+        returnArray[i] = element;
+    }
+
+    return returnArray;
+}
+
+Aws::Map<Aws::String, JsonView> JsonView::GetAllObjects() const
+{
+    Aws::Map<Aws::String, JsonView> valueMap;
+    if (!m_value)
+    {
+        return valueMap;
+    }
+
+    for (auto iter = m_value->child; iter; iter = iter->next)
+    {
+        valueMap.emplace(std::make_pair(Aws::String(iter->string), JsonView(iter)));
+    }
+
+    return valueMap;
+}
+
+bool JsonView::ValueExists(const Aws::String& key) const
+{
+    if (!cJSON_IsObject(m_value))
+    {
+        return false;
+    }
+
+    auto item = cJSON_GetObjectItemCaseSensitive(m_value, key.c_str());
+    return !(item == nullptr || cJSON_IsNull(item));
+}
+
+bool JsonView::KeyExists(const Aws::String& key) const
+{
+    if (!cJSON_IsObject(m_value))
+    {
+        return false;
+    }
+
+    return cJSON_GetObjectItemCaseSensitive(m_value, key.c_str()) != nullptr;;
+}
+
+bool JsonView::IsObject() const
+{
+    return cJSON_IsObject(m_value) != 0;
+}
+
+bool JsonView::IsBool() const
+{
+    return cJSON_IsBool(m_value) != 0;
+}
+
+bool JsonView::IsString() const
+{
+    return cJSON_IsString(m_value) != 0;
+}
+
+bool JsonView::IsIntegerType() const
+{
+    if (!cJSON_IsNumber(m_value))
+    {
+        return false;
+    }
+
+    if (m_value->valuestring)
+    {
+        Aws::String valueString = m_value->valuestring;
+        return std::all_of(valueString.begin(), valueString.end(), [](unsigned char c){ return ::isdigit(c) || c == '+' || c == '-'; });
+    }
+    return m_value->valuedouble == static_cast<long long>(m_value->valuedouble);
+}
+
+bool JsonView::IsFloatingPointType() const
+{
+    if (!cJSON_IsNumber(m_value))
+    {
+        return false;
+    }
+
+    if (m_value->valuestring)
+    {
+        Aws::String valueString = m_value->valuestring;
+        return std::any_of(valueString.begin(), valueString.end(), [](unsigned char c){ return !::isdigit(c) && c != '+' && c != '-'; });
+    }
+    return m_value->valuedouble != static_cast<long long>(m_value->valuedouble);
+}
+
+bool JsonView::IsListType() const
+{
+    return cJSON_IsArray(m_value) != 0;
+}
+
+bool JsonView::IsNull() const
+{
+    return cJSON_IsNull(m_value) != 0;
+}
+
+Aws::String JsonView::WriteCompact(bool treatAsObject) const
+{
+    if (!m_value)
+    {
+        if (treatAsObject)
+        {
+            return "{}";
+        }
+        return {};
+    }
+
+    auto temp = cJSON_PrintUnformatted(m_value);
+    Aws::String out(temp);
+    cJSON_free(temp);
+    return out;
+}
+
+Aws::String JsonView::WriteReadable(bool treatAsObject) const
+{
+    if (!m_value)
+    {
+        if (treatAsObject)
+        {
+            return "{\n}\n";
+        }
+        return {};
+    }
+
+    auto temp = cJSON_Print(m_value);
+    Aws::String out(temp);
+    cJSON_free(temp);
+    return out;
+}
+
+JsonValue JsonView::Materialize() const
+{
+    return m_value;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/AWSLogging.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/AWSLogging.cpp
new file mode 100644
index 0000000000..fc1b9fcc2e
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/AWSLogging.cpp
@@ -0,0 +1,51 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/logging/AWSLogging.h>
+#include <aws/core/utils/logging/LogSystemInterface.h>
+#include <aws/core/utils/memory/stl/AWSStack.h>
+
+#include <memory>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+
+static std::shared_ptr<LogSystemInterface> AWSLogSystem(nullptr);
+static std::shared_ptr<LogSystemInterface> OldLogger(nullptr);
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Logging {
+
+void InitializeAWSLogging(const std::shared_ptr<LogSystemInterface> &logSystem) {
+    AWSLogSystem = logSystem;
+}
+
+void ShutdownAWSLogging(void) {
+    InitializeAWSLogging(nullptr);
+}
+
+LogSystemInterface *GetLogSystem() {
+    return AWSLogSystem.get();
+}
+
+void PushLogger(const std::shared_ptr<LogSystemInterface> &logSystem)
+{
+    OldLogger = AWSLogSystem;
+    AWSLogSystem = logSystem;
+}
+
+void PopLogger()
+{
+    AWSLogSystem = OldLogger;
+    OldLogger = nullptr;
+}
+
+} // namespace Logging
+} // namespace Utils
+} // namespace Aws
\ No newline at end of file
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/ConsoleLogSystem.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/ConsoleLogSystem.cpp
new file mode 100644
index 0000000000..dec7cef82f
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/ConsoleLogSystem.cpp
@@ -0,0 +1,22 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/logging/ConsoleLogSystem.h>
+
+#include <iostream>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+
+void ConsoleLogSystem::ProcessFormattedStatement(Aws::String&& statement)
+{
+    std::cout << statement;
+}
+
+void ConsoleLogSystem::Flush()
+{
+    std::cout.flush();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/DefaultLogSystem.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/DefaultLogSystem.cpp
new file mode 100644
index 0000000000..7286bb6378
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/DefaultLogSystem.cpp
@@ -0,0 +1,117 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/logging/DefaultLogSystem.h>
+
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/utils/memory/stl/AWSVector.h>
+
+#include <fstream>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+
+static const char* AllocationTag = "DefaultLogSystem";
+static const int BUFFERED_MSG_COUNT = 100;
+
+static std::shared_ptr<Aws::OFStream> MakeDefaultLogFile(const Aws::String& filenamePrefix)
+{
+    Aws::String newFileName = filenamePrefix + DateTime::CalculateGmtTimestampAsString("%Y-%m-%d-%H") + ".log";
+    return Aws::MakeShared<Aws::OFStream>(AllocationTag, newFileName.c_str(), Aws::OFStream::out | Aws::OFStream::app);
+}
+
+static void LogThread(DefaultLogSystem::LogSynchronizationData* syncData, const std::shared_ptr<Aws::OStream>& logFile, const Aws::String& filenamePrefix, bool rollLog)
+{
+    // localtime requires access to env. variables to get Timezone, which is not thread-safe
+    int32_t lastRolledHour = DateTime::Now().GetHour(false /*localtime*/);
+    std::shared_ptr<Aws::OStream> log = logFile;
+
+    for(;;)
+    {
+        std::unique_lock<std::mutex> locker(syncData->m_logQueueMutex);
+        syncData->m_queueSignal.wait(locker, [&](){ return syncData->m_stopLogging == true || syncData->m_queuedLogMessages.size() > 0; } );
+
+        if (syncData->m_stopLogging && syncData->m_queuedLogMessages.size() == 0)
+        {
+            break;
+        }
+
+        Aws::Vector<Aws::String> messages(std::move(syncData->m_queuedLogMessages));
+        syncData->m_queuedLogMessages.reserve(BUFFERED_MSG_COUNT);
+
+        locker.unlock();
+
+        if (messages.size() > 0)
+        {
+            if (rollLog)
+            {
+                // localtime requires access to env. variables to get Timezone, which is not thread-safe
+                int32_t currentHour = DateTime::Now().GetHour(false /*localtime*/); 
+                if (currentHour != lastRolledHour)
+                {
+                    log = MakeDefaultLogFile(filenamePrefix);
+                    lastRolledHour = currentHour;
+                }
+            }
+
+            for (const auto& msg : messages)
+            {
+                (*log) << msg;
+            }
+
+            log->flush();
+        }
+    }
+}
+
+DefaultLogSystem::DefaultLogSystem(LogLevel logLevel, const std::shared_ptr<Aws::OStream>& logFile) :
+    Base(logLevel),
+    m_syncData(),
+    m_loggingThread()
+{
+    m_loggingThread = std::thread(LogThread, &m_syncData, logFile, "", false);
+}
+
+DefaultLogSystem::DefaultLogSystem(LogLevel logLevel, const Aws::String& filenamePrefix) :
+    Base(logLevel),
+    m_syncData(),
+    m_loggingThread()
+{
+    m_loggingThread = std::thread(LogThread, &m_syncData, MakeDefaultLogFile(filenamePrefix), filenamePrefix, true);
+}
+
+DefaultLogSystem::~DefaultLogSystem()
+{
+    {
+        std::lock_guard<std::mutex> locker(m_syncData.m_logQueueMutex);
+        m_syncData.m_stopLogging = true;
+    }
+
+    m_syncData.m_queueSignal.notify_one();
+
+    m_loggingThread.join();
+}
+
+void DefaultLogSystem::ProcessFormattedStatement(Aws::String&& statement)
+{
+    std::unique_lock<std::mutex> locker(m_syncData.m_logQueueMutex);
+    m_syncData.m_queuedLogMessages.emplace_back(std::move(statement));
+    if(m_syncData.m_queuedLogMessages.size() >= BUFFERED_MSG_COUNT)
+    {
+        locker.unlock();
+        m_syncData.m_queueSignal.notify_one();
+    }
+    else
+    {
+        locker.unlock();
+    }
+}
+
+void DefaultLogSystem::Flush()
+{
+    m_syncData.m_queueSignal.notify_one();
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/FormattedLogSystem.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/FormattedLogSystem.cpp
new file mode 100644
index 0000000000..41c4d7e09c
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/FormattedLogSystem.cpp
@@ -0,0 +1,99 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+
+#include <aws/core/utils/logging/FormattedLogSystem.h>
+
+#include <aws/core/utils/DateTime.h>
+#include <aws/core/utils/Array.h>
+
+#include <fstream>
+#include <cstdarg>
+#include <stdio.h>
+#include <thread>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Logging;
+
+static Aws::String CreateLogPrefixLine(LogLevel logLevel, const char* tag)
+{
+    Aws::StringStream ss;
+
+    switch(logLevel)
+    {
+        case LogLevel::Error:
+            ss << "[ERROR] ";
+            break;
+
+        case LogLevel::Fatal:
+            ss << "[FATAL] ";
+            break;
+
+        case LogLevel::Warn:
+            ss << "[WARN] ";
+            break;
+
+        case LogLevel::Info:
+            ss << "[INFO] ";
+            break;
+
+        case LogLevel::Debug:
+            ss << "[DEBUG] ";
+            break;
+
+        case LogLevel::Trace:
+            ss << "[TRACE] ";
+            break;
+
+        default:
+            ss << "[UNKOWN] ";
+            break;
+    }
+
+    ss << DateTime::Now().CalculateGmtTimeWithMsPrecision() << " " << tag << " [" << std::this_thread::get_id() << "] ";
+
+    return ss.str();
+}
+
+FormattedLogSystem::FormattedLogSystem(LogLevel logLevel) :
+    m_logLevel(logLevel)
+{
+}
+
+void FormattedLogSystem::Log(LogLevel logLevel, const char* tag, const char* formatStr, ...)
+{
+    Aws::StringStream ss;
+    ss << CreateLogPrefixLine(logLevel, tag);
+
+    std::va_list args;
+    va_start(args, formatStr);
+
+    va_list tmp_args; //unfortunately you cannot consume a va_list twice
+    va_copy(tmp_args, args); //so we have to copy it
+    #ifdef WIN32
+        const int requiredLength = _vscprintf(formatStr, tmp_args) + 1;
+    #else
+        const int requiredLength = vsnprintf(nullptr, 0, formatStr, tmp_args) + 1;
+    #endif
+    va_end(tmp_args);
+
+    Array<char> outputBuff(requiredLength);
+    #ifdef WIN32
+        vsnprintf_s(outputBuff.GetUnderlyingData(), requiredLength, _TRUNCATE, formatStr, args);
+    #else
+        vsnprintf(outputBuff.GetUnderlyingData(), requiredLength, formatStr, args);
+    #endif // WIN32
+
+    ss << outputBuff.GetUnderlyingData() << std::endl;  
+  
+    ProcessFormattedStatement(ss.str());
+
+    va_end(args);
+}
+
+void FormattedLogSystem::LogStream(LogLevel logLevel, const char* tag, const Aws::OStringStream &message_stream)
+{
+    ProcessFormattedStatement(CreateLogPrefixLine(logLevel, tag) + message_stream.str() + "\n");
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/LogLevel.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/LogLevel.cpp
new file mode 100644
index 0000000000..9ff1bf3126
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/logging/LogLevel.cpp
@@ -0,0 +1,45 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/logging/LogLevel.h>
+
+#include <aws/core/utils/memory/stl/AWSMap.h>
+#include <aws/core/utils/memory/stl/AWSString.h>
+#include <cassert>
+
+using namespace Aws::Utils::Logging;
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Logging
+{
+
+Aws::String GetLogLevelName(LogLevel logLevel) 
+{ 
+	switch (logLevel)
+	{
+	case LogLevel::Fatal:
+		return "FATAL";
+	case LogLevel::Error:
+		return "ERROR";
+	case LogLevel::Warn:
+		return "WARN";
+	case LogLevel::Info:
+		return "INFO";
+	case LogLevel::Debug:
+		return "DEBUG";
+	case LogLevel::Trace:
+		return "TRACE";
+	default:
+		assert(0);
+		return "";
+	}   
+}
+
+} // namespace Logging
+} // namespace Utils
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/AWSMemory.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/AWSMemory.cpp
new file mode 100644
index 0000000000..96d339d385
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/AWSMemory.cpp
@@ -0,0 +1,134 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/memory/AWSMemory.h>
+
+#include <aws/core/utils/memory/MemorySystemInterface.h>
+#include <aws/common/common.h>
+
+#include <atomic>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Memory;
+
+#ifdef USE_AWS_MEMORY_MANAGEMENT
+  static MemorySystemInterface* AWSMemorySystem(nullptr);
+#endif // USE_AWS_MEMORY_MANAGEMENT
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Memory
+{
+
+void InitializeAWSMemorySystem(MemorySystemInterface& memorySystem)
+{
+    #ifdef USE_AWS_MEMORY_MANAGEMENT
+        if(AWSMemorySystem != nullptr)
+        {
+            AWSMemorySystem->End();
+        }
+
+        AWSMemorySystem = &memorySystem;
+        AWSMemorySystem->Begin();
+    #else
+        AWS_UNREFERENCED_PARAM(memorySystem);
+    #endif // USE_AWS_MEMORY_MANAGEMENT
+}
+
+void ShutdownAWSMemorySystem(void)
+{
+    #ifdef USE_AWS_MEMORY_MANAGEMENT
+        if(AWSMemorySystem != nullptr)
+        {
+            AWSMemorySystem->End();
+        }
+        AWSMemorySystem = nullptr;
+    #endif // USE_AWS_MEMORY_MANAGEMENT
+}
+
+MemorySystemInterface* GetMemorySystem()
+{
+    #ifdef USE_AWS_MEMORY_MANAGEMENT
+        return AWSMemorySystem;
+    #else
+        return nullptr;
+    #endif // USE_AWS_MEMORY_MANAGEMENT
+}
+
+} // namespace Memory
+} // namespace Utils
+
+void* Malloc(const char* allocationTag, size_t allocationSize)
+{
+    Aws::Utils::Memory::MemorySystemInterface* memorySystem = Aws::Utils::Memory::GetMemorySystem();
+
+    void* rawMemory = nullptr;
+    if(memorySystem != nullptr)
+    {
+        rawMemory = memorySystem->AllocateMemory(allocationSize, 1, allocationTag);
+    }
+    else
+    {
+        rawMemory = malloc(allocationSize);
+    }
+
+    return rawMemory;
+}
+
+
+void Free(void* memoryPtr)
+{
+    if(memoryPtr == nullptr)
+    {
+        return;
+    }
+
+    Aws::Utils::Memory::MemorySystemInterface* memorySystem = Aws::Utils::Memory::GetMemorySystem();
+    if(memorySystem != nullptr)
+    {
+        memorySystem->FreeMemory(memoryPtr);
+    }
+    else
+    {
+        free(memoryPtr);
+    }
+}
+
+static void* MemAcquire(aws_allocator* allocator, size_t size)
+{
+    (void)allocator; // unused;
+    return Aws::Malloc("MemAcquire", size);
+}
+
+static void MemRelease(aws_allocator* allocator, void* ptr)
+{
+    (void)allocator; // unused;
+    return Aws::Free(ptr);
+}
+
+static aws_allocator create_aws_allocator()
+{
+#if (__GNUC__ == 4) && !defined(__clang__)
+    AWS_SUPPRESS_WARNING("-Wmissing-field-initializers", aws_allocator wrapper{};);
+#else
+    aws_allocator wrapper{};
+#endif
+    wrapper.mem_acquire = MemAcquire;
+    wrapper.mem_release = MemRelease;
+    wrapper.mem_realloc = nullptr;
+    return wrapper;
+}
+
+aws_allocator* get_aws_allocator()
+{
+    static aws_allocator wrapper = create_aws_allocator();
+    return &wrapper;
+}
+
+} // namespace Aws
+
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/stl/SimpleStringStream.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/stl/SimpleStringStream.cpp
new file mode 100644
index 0000000000..4662749872
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/memory/stl/SimpleStringStream.cpp
@@ -0,0 +1,66 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/memory/stl/SimpleStringStream.h>
+
+namespace Aws
+{
+
+SimpleStringStream::SimpleStringStream() :
+    base(&m_streamBuffer),
+    m_streamBuffer()
+{
+}
+
+SimpleStringStream::SimpleStringStream(const Aws::String& value) :
+    base(&m_streamBuffer),
+    m_streamBuffer(value)
+{
+}
+
+void SimpleStringStream::str(const Aws::String& value)
+{
+    m_streamBuffer.str(value);
+}
+
+//
+
+SimpleIStringStream::SimpleIStringStream() :
+    base(&m_streamBuffer),
+    m_streamBuffer()
+{
+}
+
+SimpleIStringStream::SimpleIStringStream(const Aws::String& value) :
+    base(&m_streamBuffer),
+    m_streamBuffer(value)
+{
+}
+
+void SimpleIStringStream::str(const Aws::String& value)
+{
+    m_streamBuffer.str(value);
+}
+
+//
+
+SimpleOStringStream::SimpleOStringStream() :
+    base(&m_streamBuffer),
+    m_streamBuffer()
+{
+}
+
+SimpleOStringStream::SimpleOStringStream(const Aws::String& value) :
+    base(&m_streamBuffer),
+    m_streamBuffer(value)
+{
+}
+
+void SimpleOStringStream::str(const Aws::String& value)
+{
+    m_streamBuffer.str(value);
+}
+
+} // namespace Aws
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ConcurrentStreamBuf.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ConcurrentStreamBuf.cpp
new file mode 100644
index 0000000000..3f59dbe96d
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ConcurrentStreamBuf.cpp
@@ -0,0 +1,126 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+#include <aws/core/utils/stream/ConcurrentStreamBuf.h>
+#include <aws/core/utils/logging/LogMacros.h>
+#include <cstdint>
+#include <cassert>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Stream
+        {
+            const char TAG[] = "ConcurrentStreamBuf";
+            ConcurrentStreamBuf::ConcurrentStreamBuf(size_t bufferLength) :
+                m_putArea(bufferLength), // we access [0] of the put area below so we must initialize it.
+                m_eof(false)
+            {
+                m_getArea.reserve(bufferLength);
+                m_backbuf.reserve(bufferLength);
+
+                char* pbegin = reinterpret_cast<char*>(&m_putArea[0]);
+                setp(pbegin, pbegin + bufferLength);
+            }
+
+            void ConcurrentStreamBuf::SetEof()
+            {
+                {
+                    std::unique_lock<std::mutex> lock(m_lock);
+                    m_eof = true;
+                }
+                m_signal.notify_all();
+            }
+
+            void ConcurrentStreamBuf::FlushPutArea()
+            {
+                const size_t bitslen = pptr() - pbase();
+                if (bitslen)
+                {
+                    // scope the lock
+                    {
+                        std::unique_lock<std::mutex> lock(m_lock);
+                        m_signal.wait(lock, [this, bitslen]{ return m_eof || bitslen <= (m_backbuf.capacity() - m_backbuf.size()); });
+                        if (m_eof)
+                        {
+                            return;
+                        }
+                        std::copy(pbase(), pptr(), std::back_inserter(m_backbuf));
+                    }
+                    m_signal.notify_one();
+                    char* pbegin = reinterpret_cast<char*>(&m_putArea[0]);
+                    setp(pbegin, pbegin + m_putArea.size());
+                }
+            }
+
+            std::streampos ConcurrentStreamBuf::seekoff(std::streamoff, std::ios_base::seekdir, std::ios_base::openmode)
+            {
+                return std::streamoff(-1); // Seeking is not supported.
+            }
+
+            std::streampos ConcurrentStreamBuf::seekpos(std::streampos, std::ios_base::openmode)
+            {
+                return std::streamoff(-1); // Seeking is not supported.
+            }
+
+            int ConcurrentStreamBuf::underflow()
+            {
+                {
+                    std::unique_lock<std::mutex> lock(m_lock);
+                    m_signal.wait(lock, [this]{ return m_backbuf.empty() == false || m_eof; });
+
+                    if (m_eof && m_backbuf.empty())
+                    {
+                        return std::char_traits<char>::eof();
+                    }
+
+                    m_getArea.clear(); // keep the get-area from growing unbounded.
+                    std::copy(m_backbuf.begin(), m_backbuf.end(), std::back_inserter(m_getArea));
+                    m_backbuf.clear();
+                }
+                m_signal.notify_one();
+                char* gbegin = reinterpret_cast<char*>(&m_getArea[0]);
+                setg(gbegin, gbegin, gbegin + m_getArea.size());
+                return std::char_traits<char>::to_int_type(*gptr());
+            }
+
+            std::streamsize ConcurrentStreamBuf::showmanyc()
+            {
+                std::unique_lock<std::mutex> lock(m_lock);
+                AWS_LOGSTREAM_TRACE(TAG, "stream how many character? " << m_backbuf.size());
+                return m_backbuf.size();
+            }
+
+            int ConcurrentStreamBuf::overflow(int ch)
+            {
+                const auto eof = std::char_traits<char>::eof();
+
+                if (ch == eof)
+                {
+                    FlushPutArea();
+                    return eof;
+                }
+
+                FlushPutArea();
+                {
+                    std::unique_lock<std::mutex> lock(m_lock);
+                    if (m_eof)
+                    {
+                        return eof;
+                    }
+                    *pptr() = static_cast<char>(ch);
+                    pbump(1);
+                    return ch;
+                }
+            }
+
+            int ConcurrentStreamBuf::sync()
+            {
+                FlushPutArea();
+                return 0;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/PreallocatedStreamBuf.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/PreallocatedStreamBuf.cpp
new file mode 100644
index 0000000000..f656fc8613
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/PreallocatedStreamBuf.cpp
@@ -0,0 +1,75 @@
+
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/stream/PreallocatedStreamBuf.h>
+#include <cassert>
+
+namespace Aws
+{
+    namespace Utils
+    {
+        namespace Stream
+        {
+            PreallocatedStreamBuf::PreallocatedStreamBuf(unsigned char* buffer, uint64_t lengthToRead) :
+                m_underlyingBuffer(buffer), m_lengthToRead(lengthToRead)
+            {
+                char* end = reinterpret_cast<char*>(m_underlyingBuffer + m_lengthToRead);
+                char* begin = reinterpret_cast<char*>(m_underlyingBuffer);
+                setp(begin, end);
+                setg(begin, begin, end);
+            }
+
+            PreallocatedStreamBuf::pos_type PreallocatedStreamBuf::seekoff(off_type off, std::ios_base::seekdir dir, std::ios_base::openmode which)
+            {
+                if (dir == std::ios_base::beg)
+                {
+                    return seekpos(off, which);
+                }
+                else if (dir == std::ios_base::end)
+                {
+                    return seekpos(m_lengthToRead - off, which);
+                }
+                else if (dir == std::ios_base::cur)
+                {
+                    if(which == std::ios_base::in)
+                    { 
+                        return seekpos((gptr() - reinterpret_cast<char*>(m_underlyingBuffer)) + off, which);
+                    }
+                    else
+                    {
+                        return seekpos((pptr() - reinterpret_cast<char*>(m_underlyingBuffer)) + off, which);
+                    }
+                }
+
+                return off_type(-1);
+            }
+
+            PreallocatedStreamBuf::pos_type PreallocatedStreamBuf::seekpos(pos_type pos, std::ios_base::openmode which)
+            {
+                assert(static_cast<size_t>(pos) <= m_lengthToRead);
+                if (static_cast<size_t>(pos) > m_lengthToRead)
+                {
+                    return pos_type(off_type(-1));
+                }
+
+                char* end = reinterpret_cast<char*>(m_underlyingBuffer + m_lengthToRead);
+                char* begin = reinterpret_cast<char*>(m_underlyingBuffer);
+
+                if (which == std::ios_base::in)
+                {
+                    setg(begin, begin + static_cast<size_t>(pos), end);
+                }
+
+                if (which == std::ios_base::out)
+                {
+                    setp(begin + static_cast<size_t>(pos), end);
+                }
+
+                return pos;
+            }
+        }
+    }
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ResponseStream.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ResponseStream.cpp
new file mode 100644
index 0000000000..6d1f90ed12
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/ResponseStream.cpp
@@ -0,0 +1,91 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/stream/ResponseStream.h>
+#include <aws/core/utils/memory/stl/AWSStringStream.h>
+
+#if defined(_GLIBCXX_FULLY_DYNAMIC_STRING) && _GLIBCXX_FULLY_DYNAMIC_STRING == 0 && defined(__ANDROID__)
+#include <aws/core/utils/stream/SimpleStreamBuf.h>
+using DefaultStreamBufType = Aws::Utils::Stream::SimpleStreamBuf;
+#else
+using DefaultStreamBufType = Aws::StringBuf;
+#endif
+
+using namespace Aws::Utils::Stream;
+
+ResponseStream::ResponseStream(void) :
+    m_underlyingStream(nullptr)
+{
+}
+
+ResponseStream::ResponseStream(Aws::IOStream* underlyingStreamToManage) :
+    m_underlyingStream(underlyingStreamToManage)
+{
+}
+
+ResponseStream::ResponseStream(const Aws::IOStreamFactory& factory) :
+    m_underlyingStream(factory())
+{
+}
+
+ResponseStream::ResponseStream(ResponseStream&& toMove) : m_underlyingStream(toMove.m_underlyingStream)
+{
+    toMove.m_underlyingStream = nullptr;
+}
+
+ResponseStream& ResponseStream::operator=(ResponseStream&& toMove)
+{
+    if(m_underlyingStream == toMove.m_underlyingStream)
+    {
+        return *this;
+    }
+
+    ReleaseStream();
+    m_underlyingStream = toMove.m_underlyingStream;
+    toMove.m_underlyingStream = nullptr;
+
+    return *this;
+}
+
+ResponseStream::~ResponseStream()
+{
+    ReleaseStream();
+}
+
+void ResponseStream::ReleaseStream()
+{
+    if (m_underlyingStream)
+    {
+        m_underlyingStream->flush();
+        Aws::Delete(m_underlyingStream);
+    }
+
+    m_underlyingStream = nullptr;
+}
+
+static const char *DEFAULT_STREAM_TAG = "DefaultUnderlyingStream";
+
+DefaultUnderlyingStream::DefaultUnderlyingStream() :
+    Base( Aws::New< DefaultStreamBufType >( DEFAULT_STREAM_TAG ) )
+{}
+
+DefaultUnderlyingStream::DefaultUnderlyingStream(Aws::UniquePtr<std::streambuf> buf) :
+    Base(buf.release())
+{}
+
+DefaultUnderlyingStream::~DefaultUnderlyingStream()
+{
+    if( rdbuf() )
+    {
+        Aws::Delete( rdbuf() );
+    }
+}
+
+static const char* RESPONSE_STREAM_FACTORY_TAG = "ResponseStreamFactory";
+
+Aws::IOStream* Aws::Utils::Stream::DefaultResponseStreamFactoryMethod() 
+{
+    return Aws::New<Aws::Utils::Stream::DefaultUnderlyingStream>(RESPONSE_STREAM_FACTORY_TAG);
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/SimpleStreamBuf.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/SimpleStreamBuf.cpp
new file mode 100644
index 0000000000..6e42994744
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/stream/SimpleStreamBuf.cpp
@@ -0,0 +1,239 @@
+
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/stream/SimpleStreamBuf.h>
+
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+
+namespace Aws
+{
+namespace Utils
+{
+namespace Stream
+{
+
+static const uint32_t DEFAULT_BUFFER_SIZE = 100;
+static const char* SIMPLE_STREAMBUF_ALLOCATION_TAG = "SimpleStreamBufTag";
+
+SimpleStreamBuf::SimpleStreamBuf() :
+    m_buffer(nullptr),
+    m_bufferSize(0)
+{
+    m_buffer = Aws::NewArray<char>(DEFAULT_BUFFER_SIZE, SIMPLE_STREAMBUF_ALLOCATION_TAG);
+    m_bufferSize = DEFAULT_BUFFER_SIZE;
+
+    char* begin = m_buffer;
+    char* end = begin + m_bufferSize;
+
+    setp(begin, end);
+    setg(begin, begin, begin);
+}
+
+SimpleStreamBuf::SimpleStreamBuf(const Aws::String& value) :
+    m_buffer(nullptr),
+    m_bufferSize(0)
+{
+    size_t baseSize = (std::max)(value.size(), static_cast<std::size_t>(DEFAULT_BUFFER_SIZE));
+
+    m_buffer = Aws::NewArray<char>(baseSize, SIMPLE_STREAMBUF_ALLOCATION_TAG);
+    m_bufferSize = baseSize;
+
+    std::memcpy(m_buffer, value.c_str(), value.size());
+
+    char* begin = m_buffer;
+    char* end = begin + m_bufferSize;
+
+    setp(begin + value.size(), end);
+    setg(begin, begin, begin);
+}
+
+SimpleStreamBuf::~SimpleStreamBuf()
+{
+    if(m_buffer)
+    {
+        Aws::DeleteArray<char>(m_buffer);
+        m_buffer = nullptr;
+    }
+
+    m_bufferSize = 0;
+}
+
+std::streampos SimpleStreamBuf::seekoff(std::streamoff off, std::ios_base::seekdir dir, std::ios_base::openmode which)
+{
+    if (dir == std::ios_base::beg)
+    {
+        return seekpos(off, which);
+    }
+    else if (dir == std::ios_base::end)
+    {
+        return seekpos((pptr() - m_buffer) - off, which);
+    }
+    else if (dir == std::ios_base::cur)
+    {
+        if(which == std::ios_base::in)
+        { 
+            return seekpos((gptr() - m_buffer) + off, which);
+        }
+        else
+        {
+            return seekpos((pptr() - m_buffer) + off, which);
+        }
+    }
+
+    return off_type(-1);
+}
+
+std::streampos SimpleStreamBuf::seekpos(std::streampos pos, std::ios_base::openmode which)
+{
+    size_t maxSeek = pptr() - m_buffer;
+    assert(static_cast<size_t>(pos) <= maxSeek);
+    if (static_cast<size_t>(pos) > maxSeek)
+    {
+        return pos_type(off_type(-1));
+    }
+
+    if (which == std::ios_base::in)
+    {
+        setg(m_buffer, m_buffer + static_cast<size_t>(pos), pptr());                    
+    }
+
+    if (which == std::ios_base::out)
+    {
+        setp(m_buffer + static_cast<size_t>(pos), epptr());
+    }
+
+    return pos;
+}
+
+bool SimpleStreamBuf::GrowBuffer()
+{
+    size_t currentSize = m_bufferSize;
+    size_t newSize = currentSize * 2;
+
+    char* newBuffer = Aws::NewArray<char>(newSize, SIMPLE_STREAMBUF_ALLOCATION_TAG);
+    if(newBuffer == nullptr)
+    {
+        return false;
+    }
+
+    if(currentSize > 0)
+    {
+        std::memcpy(newBuffer, m_buffer, currentSize);
+    }
+
+    if(m_buffer)
+    {
+        Aws::DeleteArray<char>(m_buffer);
+    }
+
+    m_buffer = newBuffer;
+    m_bufferSize = newSize;
+
+    return true;
+}
+
+int SimpleStreamBuf::overflow (int c)
+{
+    auto endOfFile = std::char_traits< char >::eof();
+    if(c == endOfFile)
+    {
+        return endOfFile;
+    }
+
+    char* old_begin = m_buffer;
+
+    char *old_pptr = pptr();
+    char *old_gptr = gptr();
+    char *old_egptr = egptr();
+
+    size_t currentWritePosition = m_bufferSize;
+
+    if(!GrowBuffer())
+    {
+        return endOfFile;
+    }
+
+    char* new_begin = m_buffer;
+    char* new_end = new_begin + m_bufferSize;
+
+    setp(new_begin + (old_pptr - old_begin) + 1, new_end);
+    setg(new_begin, new_begin + (old_gptr - old_begin), new_begin + (old_egptr - old_begin));
+
+    auto val = std::char_traits< char >::to_char_type(c);
+    *(new_begin + currentWritePosition) = val;
+
+    return c;
+}
+
+std::streamsize SimpleStreamBuf::xsputn(const char* s, std::streamsize n)
+{
+    std::streamsize writeCount = 0;
+    while(writeCount < n)
+    {
+        char* current_pptr = pptr();
+        char* current_epptr = epptr();
+
+        if (current_pptr < current_epptr)
+        {
+            std::size_t copySize = (std::min)(static_cast< std::size_t >(n - writeCount),
+                                              static_cast< std::size_t >(current_epptr - current_pptr));
+
+            std::memcpy(current_pptr, s + writeCount, copySize);
+            writeCount += copySize;
+            setp(current_pptr + copySize, current_epptr);
+            setg(m_buffer, gptr(), pptr());
+        }
+        else if (overflow(std::char_traits< char >::to_int_type(*(s + writeCount))) != std::char_traits<char>::eof())
+        {
+            writeCount++;
+        }
+        else
+        {
+            return writeCount;
+        }
+    }
+
+    return writeCount;
+}
+
+Aws::String SimpleStreamBuf::str() const
+{
+    return Aws::String(m_buffer, pptr());
+}
+
+int SimpleStreamBuf::underflow()
+{
+    if(egptr() != pptr())
+    {
+        setg(m_buffer, gptr(), pptr());
+    }
+
+    if(gptr() != egptr())
+    {
+        return std::char_traits< char >::to_int_type(*gptr());
+    }
+    else
+    {
+        return std::char_traits< char >::eof();
+    }
+}
+
+void SimpleStreamBuf::str(const Aws::String& value)
+{
+    char* begin = m_buffer;
+    char* end = begin + m_bufferSize;
+
+    setp(begin, end);
+    setg(begin, begin, begin);
+
+    xsputn(value.c_str(), value.size());
+}
+
+}
+}
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Executor.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Executor.cpp
new file mode 100644
index 0000000000..4a3c4209c4
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Executor.cpp
@@ -0,0 +1,155 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/threading/Executor.h>
+#include <aws/core/utils/threading/ThreadTask.h>
+#include <thread>
+#include <cassert>
+
+static const char* POOLED_CLASS_TAG = "PooledThreadExecutor";
+
+using namespace Aws::Utils::Threading;
+
+bool DefaultExecutor::SubmitToThread(std::function<void()>&&  fx)
+{
+    auto main = [fx, this] { 
+        fx(); 
+        Detach(std::this_thread::get_id()); 
+    };
+
+    State expected;
+    do
+    {
+        expected = State::Free;
+        if(m_state.compare_exchange_strong(expected, State::Locked))
+        {
+            std::thread t(main);
+            const auto id = t.get_id(); // copy the id before we std::move the thread
+            m_threads.emplace(id, std::move(t));
+            m_state = State::Free;
+            return true;
+        }
+    }
+    while(expected != State::Shutdown);
+    return false;
+}
+
+void DefaultExecutor::Detach(std::thread::id id)
+{
+    State expected;
+    do
+    {
+        expected = State::Free;
+        if(m_state.compare_exchange_strong(expected, State::Locked))
+        {
+            auto it = m_threads.find(id);
+            assert(it != m_threads.end());
+            it->second.detach();
+            m_threads.erase(it);
+            m_state = State::Free;
+            return;
+        }
+    } 
+    while(expected != State::Shutdown);
+}
+
+DefaultExecutor::~DefaultExecutor()
+{
+    auto expected = State::Free;
+    while(!m_state.compare_exchange_strong(expected, State::Shutdown))
+    {
+        //spin while currently detaching threads finish
+        assert(expected == State::Locked);
+        expected = State::Free; 
+    }
+
+    auto it = m_threads.begin();
+    while(!m_threads.empty())
+    {
+        it->second.join();
+        it = m_threads.erase(it);
+    }
+}
+
+PooledThreadExecutor::PooledThreadExecutor(size_t poolSize, OverflowPolicy overflowPolicy) :
+    m_sync(0, poolSize), m_poolSize(poolSize), m_overflowPolicy(overflowPolicy)
+{
+    for (size_t index = 0; index < m_poolSize; ++index)
+    {
+        m_threadTaskHandles.push_back(Aws::New<ThreadTask>(POOLED_CLASS_TAG, *this));
+    }
+}
+
+PooledThreadExecutor::~PooledThreadExecutor()
+{
+    for(auto threadTask : m_threadTaskHandles)
+    {
+        threadTask->StopProcessingWork();
+    }
+
+    m_sync.ReleaseAll();
+
+    for (auto threadTask : m_threadTaskHandles)
+    {
+        Aws::Delete(threadTask);
+    }
+
+    while(m_tasks.size() > 0)
+    {
+        std::function<void()>* fn = m_tasks.front();
+        m_tasks.pop();
+
+        if(fn)
+        {
+            Aws::Delete(fn);
+        }
+    }
+
+}
+
+bool PooledThreadExecutor::SubmitToThread(std::function<void()>&& fn)
+{
+    //avoid the need to do copies inside the lock. Instead lets do a pointer push.
+    std::function<void()>* fnCpy = Aws::New<std::function<void()>>(POOLED_CLASS_TAG, std::forward<std::function<void()>>(fn));
+
+    {
+        std::lock_guard<std::mutex> locker(m_queueLock);
+
+        if (m_overflowPolicy == OverflowPolicy::REJECT_IMMEDIATELY && m_tasks.size() >= m_poolSize)
+        {
+            Aws::Delete(fnCpy);
+            return false;
+        }
+
+        m_tasks.push(fnCpy);
+    }
+
+    m_sync.Release();
+
+    return true;
+}
+
+std::function<void()>* PooledThreadExecutor::PopTask()
+{
+    std::lock_guard<std::mutex> locker(m_queueLock);
+
+    if (m_tasks.size() > 0)
+    {
+        std::function<void()>* fn = m_tasks.front();
+        if (fn)
+        {           
+            m_tasks.pop();
+            return fn;
+        }
+    }
+
+    return nullptr;
+}
+
+bool PooledThreadExecutor::HasTasks()
+{
+    std::lock_guard<std::mutex> locker(m_queueLock);
+    return m_tasks.size() > 0;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ReaderWriterLock.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ReaderWriterLock.cpp
new file mode 100644
index 0000000000..ddb5860563
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ReaderWriterLock.cpp
@@ -0,0 +1,64 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/threading/ReaderWriterLock.h>
+#include <cstdint>
+#include <limits>
+#include <cassert>
+
+using namespace Aws::Utils::Threading;
+
+static const int64_t MaxReaders = (std::numeric_limits<std::int32_t>::max)();
+
+ReaderWriterLock::ReaderWriterLock() :
+    m_readers(0),
+    m_holdouts(0),
+    m_readerSem(0, static_cast<size_t>(MaxReaders)),
+    m_writerSem(0, 1)
+{
+}
+
+void ReaderWriterLock::LockReader()
+{
+    if (++m_readers < 0)
+    {
+        m_readerSem.WaitOne();
+    }
+}
+
+void ReaderWriterLock::UnlockReader()
+{
+    if (--m_readers < 0 && --m_holdouts == 0)
+    {
+        m_writerSem.Release();
+    }
+}
+
+void ReaderWriterLock::LockWriter()
+{
+    m_writerLock.lock();
+    if(const auto current = m_readers.fetch_sub(MaxReaders))
+    {
+        assert(current > 0);
+        const auto holdouts = m_holdouts.fetch_add(current) + current;
+        assert(holdouts >= 0);
+        if(holdouts > 0)
+        {
+            m_writerSem.WaitOne();
+        }
+    }
+}
+
+void ReaderWriterLock::UnlockWriter()
+{
+    assert(m_holdouts == 0);
+    const auto current = m_readers.fetch_add(MaxReaders) + MaxReaders;
+    assert(current >= 0);
+    for(int64_t r = 0; r < current; r++)
+    {
+        m_readerSem.Release();
+    }
+    m_writerLock.unlock();
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Semaphore.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Semaphore.cpp
new file mode 100644
index 0000000000..86dabc9acf
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/Semaphore.cpp
@@ -0,0 +1,39 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/threading/Semaphore.h>
+#include <algorithm>
+
+using namespace Aws::Utils::Threading;
+
+Semaphore::Semaphore(size_t initialCount, size_t maxCount)
+    : m_count(initialCount), m_maxCount(maxCount)
+{
+}
+
+void Semaphore::WaitOne()
+{
+    std::unique_lock<std::mutex> locker(m_mutex);
+    if(0 == m_count)
+    {
+        m_syncPoint.wait(locker, [this] { return m_count > 0; });
+    }
+    --m_count;
+}
+
+void Semaphore::Release()
+{
+    std::lock_guard<std::mutex> locker(m_mutex);
+    m_count = (std::min)(m_maxCount, m_count + 1);
+    m_syncPoint.notify_one();
+}
+
+void Semaphore::ReleaseAll()
+{    
+    std::lock_guard<std::mutex> locker(m_mutex);
+    m_count = m_maxCount;
+    m_syncPoint.notify_all();
+}
+
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ThreadTask.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ThreadTask.cpp
new file mode 100644
index 0000000000..a899fe045d
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/threading/ThreadTask.cpp
@@ -0,0 +1,46 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/threading/ThreadTask.h>
+#include <aws/core/utils/threading/Executor.h>
+
+using namespace Aws::Utils;
+using namespace Aws::Utils::Threading;
+
+ThreadTask::ThreadTask(PooledThreadExecutor& executor) : m_continue(true), m_executor(executor), m_thread(std::bind(&ThreadTask::MainTaskRunner, this))
+{
+}
+
+ThreadTask::~ThreadTask()
+{
+    StopProcessingWork();
+    m_thread.join();
+}
+
+void ThreadTask::MainTaskRunner()
+{
+    while (m_continue)
+    {        
+        while (m_continue && m_executor.HasTasks())
+        {      
+            auto fn = m_executor.PopTask();
+            if(fn)
+            {
+                (*fn)();
+                Aws::Delete(fn);               
+            }
+        }
+     
+        if(m_continue)
+        {
+            m_executor.m_sync.WaitOne();
+        }
+    }
+}
+
+void ThreadTask::StopProcessingWork()
+{
+    m_continue = false;
+}
diff --git a/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/xml/XmlSerializer.cpp b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/xml/XmlSerializer.cpp
new file mode 100644
index 0000000000..c06befaf9b
--- /dev/null
+++ b/contrib/libs/aws-sdk-cpp/aws-cpp-sdk-core/source/utils/xml/XmlSerializer.cpp
@@ -0,0 +1,302 @@
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/core/utils/xml/XmlSerializer.h>
+
+#include <aws/core/utils/StringUtils.h>
+#include <aws/core/external/tinyxml2/tinyxml2.h>
+
+#include <utility>
+#include <algorithm>
+#include <iostream>
+
+using namespace Aws::Utils::Xml;
+using namespace Aws::Utils;
+
+Aws::String Aws::Utils::Xml::DecodeEscapedXmlText(const Aws::String& textToDecode)
+{
+    Aws::String decodedString = textToDecode;
+    StringUtils::Replace(decodedString, "&quot;", "\"");
+    StringUtils::Replace(decodedString, "&apos;", "'");
+    StringUtils::Replace(decodedString, "&lt;", "<");
+    StringUtils::Replace(decodedString, "&gt;", ">");
+    StringUtils::Replace(decodedString, "&amp;", "&");
+
+    return decodedString;
+}
+
+XmlNode::XmlNode(const XmlNode& other) : m_node(other.m_node), m_doc(other.m_doc)
+{
+}
+
+XmlNode& XmlNode::operator=(const XmlNode& other)
+{
+    if(this == &other)
+    {
+        return *this;
+    }
+
+    m_node = other.m_node;
+    m_doc = other.m_doc;
+
+    return *this;
+}
+
+const Aws::String XmlNode::GetName() const
+{
+    return m_node->Value();
+}
+
+void XmlNode::SetName(const Aws::String& name)
+{
+    m_node->SetValue(name.c_str(), false);
+}
+
+const Aws::String XmlNode::GetAttributeValue(const Aws::String& name) const
+{
+    auto pointer =  m_node->ToElement()->Attribute(name.c_str(), nullptr);
+    return pointer ? pointer : "";
+}
+
+void XmlNode::SetAttributeValue(const Aws::String& name, const Aws::String& value)
+{
+    m_node->ToElement()->SetAttribute(name.c_str(), value.c_str());
+}
+
+bool XmlNode::HasNextNode() const
+{
+    return m_node->NextSibling() != nullptr;
+}
+
+XmlNode XmlNode::NextNode() const
+{
+    return XmlNode(m_node->NextSiblingElement(), *m_doc);
+}
+
+XmlNode XmlNode::NextNode(const char* name) const
+{
+    return XmlNode(m_node->NextSiblingElement(name), *m_doc);
+}
+
+XmlNode XmlNode::NextNode(const Aws::String& name) const
+{
+    return NextNode(name.c_str());
+}
+
+XmlNode XmlNode::FirstChild() const
+{
+    return XmlNode(m_node->FirstChildElement(), *m_doc);
+}
+
+XmlNode XmlNode::FirstChild(const char* name) const
+{
+    return XmlNode(m_node->FirstChildElement(name), *m_doc);
+}
+
+XmlNode XmlNode::FirstChild(const Aws::String& name) const
+{
+    return FirstChild(name.c_str());
+}
+
+bool XmlNode::HasChildren() const
+{
+    return !m_node->NoChildren();
+}
+
+XmlNode XmlNode::Parent() const
+{
+    return XmlNode(m_node->Parent()->ToElement(), *m_doc);
+}
+
+Aws::String XmlNode::GetText() const
+{
+    if (m_node != nullptr)
+    {
+        Aws::External::tinyxml2::XMLPrinter printer;
+        Aws::External::tinyxml2::XMLNode* node = m_node->FirstChild();
+        while (node != nullptr)
+        {
+            node->Accept(&printer);
+            node = node->NextSibling();
+        }
+
+        return printer.CStr();
+    }
+
+    return {};
+}
+
+void XmlNode::SetText(const Aws::String& textValue)
+{
+    if (m_node != nullptr)
+    {
+        Aws::External::tinyxml2::XMLText* text = m_doc->m_doc->NewText(textValue.c_str());
+        m_node->InsertEndChild(text);
+    }
+}
+
+XmlNode XmlNode::CreateChildElement(const Aws::String& name)
+{
+    Aws::External::tinyxml2::XMLElement* element = m_doc->m_doc->NewElement(name.c_str());
+    return XmlNode(m_node->InsertEndChild(element), *m_doc);
+}
+
+XmlNode XmlNode::CreateSiblingElement(const Aws::String& name)
+{
+    Aws::External::tinyxml2::XMLElement* element = m_doc->m_doc->NewElement(name.c_str());
+    return XmlNode(m_node->Parent()->InsertEndChild(element), *m_doc);
+}
+
+bool XmlNode::IsNull()
+{
+    return m_node == nullptr;
+}
+
+static const char* XML_SERIALIZER_ALLOCATION_TAG = "XmlDocument";
+
+XmlDocument::XmlDocument()
+{
+    m_doc = nullptr;
+}
+
+XmlDocument::XmlDocument(const XmlDocument& doc)
+{
+    if (doc.m_doc == nullptr)
+    {
+        m_doc = nullptr;
+    }
+    else
+    {
+        InitDoc();
+        doc.m_doc->DeepCopy(m_doc);
+    }
+}
+
+XmlDocument::XmlDocument(XmlDocument&& doc) : m_doc{ doc.m_doc } // take the innards
+{
+    doc.m_doc = nullptr; // leave nothing behind
+}
+
+XmlDocument& XmlDocument::operator=(const XmlDocument& other)
+{
+    if (this == &other)
+    {
+        return *this;
+    }
+
+    if (other.m_doc == nullptr)
+    {
+        if (m_doc != nullptr)
+        {
+            m_doc->Clear();
+            m_doc = nullptr;
+        }
+    }
+    else
+    {
+        if (m_doc == nullptr)
+        {
+            InitDoc();
+        }
+        else
+        {
+            m_doc->Clear();
+        }
+        other.m_doc->DeepCopy(m_doc);
+    }
+
+    return *this;
+}
+
+XmlDocument& XmlDocument::operator=(XmlDocument&& other)
+{
+    if (this == &other)
+    {
+        return *this;
+    }
+
+    std::swap(m_doc, other.m_doc);
+    return *this;
+}
+
+XmlDocument::~XmlDocument()
+{
+    if (m_doc)
+    {
+        Aws::Delete(m_doc);
+    }
+}
+
+void XmlDocument::InitDoc()
+{
+    m_doc = Aws::New<Aws::External::tinyxml2::XMLDocument>(XML_SERIALIZER_ALLOCATION_TAG, true, Aws::External::tinyxml2::Whitespace::PRESERVE_WHITESPACE);
+}
+
+XmlNode XmlDocument::GetRootElement() const
+{
+    if (m_doc)
+    {
+        return XmlNode(m_doc->FirstChildElement(), *this);
+    }
+    else
+    {
+        return XmlNode(nullptr, *this);
+    }
+
+}
+
+bool XmlDocument::WasParseSuccessful() const
+{
+    if (m_doc)
+    {
+        return !m_doc->Error();
+    }
+    else
+    {
+        return true;
+    }
+
+}
+
+Aws::String XmlDocument::GetErrorMessage() const
+{
+    return !WasParseSuccessful() ? m_doc->ErrorName() : "";
+}
+
+Aws::String XmlDocument::ConvertToString() const
+{
+    if (!m_doc) return "";
+
+    Aws::External::tinyxml2::XMLPrinter printer;
+    printer.PushHeader(false, true);
+    m_doc->Accept(&printer);
+
+    return printer.CStr();
+}
+
+XmlDocument XmlDocument::CreateFromXmlStream(Aws::IOStream& xmlStream)
+{
+    Aws::String xmlString((Aws::IStreamBufIterator(xmlStream)), Aws::IStreamBufIterator());
+    return CreateFromXmlString(xmlString);
+}
+
+XmlDocument XmlDocument::CreateFromXmlString(const Aws::String& xmlText)
+{
+    XmlDocument xmlDocument;
+    xmlDocument.InitDoc();
+    xmlDocument.m_doc->Parse(xmlText.c_str(), xmlText.size());
+    return xmlDocument;
+}
+
+XmlDocument XmlDocument::CreateWithRootNode(const Aws::String& rootNodeName)
+{
+    XmlDocument xmlDocument;
+    xmlDocument.InitDoc();
+    Aws::External::tinyxml2::XMLElement* rootNode = xmlDocument.m_doc->NewElement(rootNodeName.c_str());
+    xmlDocument.m_doc->LinkEndChild(rootNode);
+
+    return xmlDocument;
+}
+