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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/string.h>
#include <aws/crt/Api.h>
#include <aws/crt/endpoints/RuleEngine.h>
#include <aws/sdkutils/endpoints_rule_engine.h>
#include <aws/sdkutils/partitions.h>
namespace Aws
{
namespace Crt
{
namespace Endpoints
{
RequestContext::RequestContext(Allocator *allocator) noexcept : m_allocator(allocator)
{
m_requestContext = aws_endpoints_request_context_new(allocator);
}
RequestContext::~RequestContext()
{
m_requestContext = aws_endpoints_request_context_release(m_requestContext);
}
bool RequestContext::AddString(const ByteCursor &name, const ByteCursor &value)
{
return AWS_OP_SUCCESS !=
aws_endpoints_request_context_add_string(m_allocator, m_requestContext, name, value);
}
bool RequestContext::AddBoolean(const ByteCursor &name, bool value)
{
return AWS_OP_SUCCESS !=
aws_endpoints_request_context_add_boolean(m_allocator, m_requestContext, name, value);
}
ResolutionOutcome::ResolutionOutcome(aws_endpoints_resolved_endpoint *impl) : m_resolvedEndpoint(impl) {}
ResolutionOutcome::ResolutionOutcome(ResolutionOutcome &&toMove) noexcept
: m_resolvedEndpoint(toMove.m_resolvedEndpoint)
{
toMove.m_resolvedEndpoint = nullptr;
}
ResolutionOutcome &ResolutionOutcome::operator=(ResolutionOutcome &&toMove)
{
if (&toMove != this)
{
*this = ResolutionOutcome(std::move(toMove));
}
return *this;
}
ResolutionOutcome::~ResolutionOutcome() { aws_endpoints_resolved_endpoint_release(m_resolvedEndpoint); }
bool ResolutionOutcome::IsEndpoint() const noexcept
{
return AWS_ENDPOINTS_RESOLVED_ENDPOINT == aws_endpoints_resolved_endpoint_get_type(m_resolvedEndpoint);
}
bool ResolutionOutcome::IsError() const noexcept
{
return AWS_ENDPOINTS_RESOLVED_ERROR == aws_endpoints_resolved_endpoint_get_type(m_resolvedEndpoint);
}
Optional<StringView> ResolutionOutcome::GetUrl() const
{
ByteCursor url;
if (aws_endpoints_resolved_endpoint_get_url(m_resolvedEndpoint, &url))
{
return Optional<StringView>();
}
return Optional<StringView>(ByteCursorToStringView(url));
}
inline StringView CrtStringToStringView(const aws_string *s)
{
ByteCursor key = aws_byte_cursor_from_string(s);
return ByteCursorToStringView(key);
}
Optional<UnorderedMap<StringView, Vector<StringView>>> ResolutionOutcome::GetHeaders() const
{
const aws_hash_table *resolved_headers = nullptr;
if (aws_endpoints_resolved_endpoint_get_headers(m_resolvedEndpoint, &resolved_headers))
{
return Optional<UnorderedMap<StringView, Vector<StringView>>>();
}
UnorderedMap<StringView, Vector<StringView>> headers;
for (struct aws_hash_iter iter = aws_hash_iter_begin(resolved_headers); !aws_hash_iter_done(&iter);
aws_hash_iter_next(&iter))
{
ByteCursor key = aws_byte_cursor_from_string((const aws_string *)iter.element.key);
const aws_array_list *array = (const aws_array_list *)iter.element.value;
headers.emplace(std::make_pair(
ByteCursorToStringView(key),
ArrayListToVector<aws_string *, StringView>(array, CrtStringToStringView)));
}
return Optional<UnorderedMap<StringView, Vector<StringView>>>(headers);
}
Optional<StringView> ResolutionOutcome::GetProperties() const
{
ByteCursor properties;
if (aws_endpoints_resolved_endpoint_get_properties(m_resolvedEndpoint, &properties))
{
return Optional<StringView>();
}
return Optional<StringView>(ByteCursorToStringView(properties));
}
Optional<StringView> ResolutionOutcome::GetError() const
{
ByteCursor error;
if (aws_endpoints_resolved_endpoint_get_error(m_resolvedEndpoint, &error))
{
return Optional<StringView>();
}
return Optional<StringView>(ByteCursorToStringView(error));
}
RuleEngine::RuleEngine(
const ByteCursor &rulesetCursor,
const ByteCursor &partitionsCursor,
Allocator *allocator) noexcept
: m_ruleEngine(nullptr)
{
auto ruleset = aws_endpoints_ruleset_new_from_string(allocator, rulesetCursor);
auto partitions = aws_partitions_config_new_from_string(allocator, partitionsCursor);
if (ruleset != NULL && partitions != NULL)
{
m_ruleEngine = aws_endpoints_rule_engine_new(allocator, ruleset, partitions);
}
if (ruleset != NULL)
{
aws_endpoints_ruleset_release(ruleset);
}
if (partitions != NULL)
{
aws_partitions_config_release(partitions);
}
}
RuleEngine::~RuleEngine() { m_ruleEngine = aws_endpoints_rule_engine_release(m_ruleEngine); }
Optional<ResolutionOutcome> RuleEngine::Resolve(const RequestContext &context) const
{
aws_endpoints_resolved_endpoint *resolved = NULL;
if (aws_endpoints_rule_engine_resolve(m_ruleEngine, context.GetNativeHandle(), &resolved))
{
return Optional<ResolutionOutcome>();
}
return Optional<ResolutionOutcome>(ResolutionOutcome(resolved));
}
} // namespace Endpoints
} // namespace Crt
} // namespace Aws
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