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#include "clickhouse_config.h"
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <Storages/System/StorageSystemCertificates.h>
#include <re2/re2.h>
#include <boost/algorithm/string.hpp>
#include <filesystem>
#include <base/scope_guard.h>
#include <Poco/File.h>
#if USE_SSL
#include <openssl/x509v3.h>
#include "Poco/Net/SSLManager.h"
#include "Poco/Crypto/X509Certificate.h"
#endif
namespace DB
{
NamesAndTypesList StorageSystemCertificates::getNamesAndTypes()
{
return
{
{"version", std::make_shared<DataTypeNumber<Int32>>()},
{"serial_number", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"signature_algo", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"issuer", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"not_before", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"not_after", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"subject", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"pkey_algo", std::make_shared<DataTypeNullable>(std::make_shared<DataTypeString>())},
{"path", std::make_shared<DataTypeString>()},
{"default", std::make_shared<DataTypeNumber<UInt8>>()}
};
}
#if USE_SSL
static std::unordered_set<std::string> parse_dir(const std::string & dir)
{
std::unordered_set<std::string> ret;
boost::split(ret, dir, boost::is_any_of(":"), boost::token_compress_on);
return ret;
}
static void populateTable(const X509 * cert, MutableColumns & res_columns, const std::string & path, bool def)
{
BIO * b = BIO_new(BIO_s_mem());
SCOPE_EXIT(
{
BIO_free(b);
});
size_t col = 0;
res_columns[col++]->insert(X509_get_version(cert) + 1);
{
char buf[1024] = {0};
const ASN1_INTEGER * sn = X509_get0_serialNumber(cert);
BIGNUM * bnsn = ASN1_INTEGER_to_BN(sn, nullptr);
SCOPE_EXIT(
{
BN_free(bnsn);
});
if (BN_print(b, bnsn) > 0 && BIO_read(b, buf, sizeof(buf)) > 0)
res_columns[col]->insert(buf);
else
res_columns[col]->insertDefault();
}
++col;
{
const ASN1_BIT_STRING *sig = nullptr;
const X509_ALGOR *al = nullptr;
char buf[1024] = {0};
X509_get0_signature(&sig, &al, cert);
if (al)
{
OBJ_obj2txt(buf, sizeof(buf), al->algorithm, 0);
res_columns[col]->insert(buf);
}
else
res_columns[col]->insertDefault();
}
++col;
char * issuer = X509_NAME_oneline(X509_get_issuer_name(cert), nullptr, 0);
if (issuer)
{
SCOPE_EXIT(
{
OPENSSL_free(issuer);
});
res_columns[col]->insert(issuer);
}
else
res_columns[col]->insertDefault();
++col;
{
char buf[1024] = {0};
if (ASN1_TIME_print(b, X509_get_notBefore(cert)) && BIO_read(b, buf, sizeof(buf)) > 0)
res_columns[col]->insert(buf);
else
res_columns[col]->insertDefault();
}
++col;
{
char buf[1024] = {0};
if (ASN1_TIME_print(b, X509_get_notAfter(cert)) && BIO_read(b, buf, sizeof(buf)) > 0)
res_columns[col]->insert(buf);
else
res_columns[col]->insertDefault();
}
++col;
char * subject = X509_NAME_oneline(X509_get_subject_name(cert), nullptr, 0);
if (subject)
{
SCOPE_EXIT(
{
OPENSSL_free(subject);
});
res_columns[col]->insert(subject);
}
else
res_columns[col]->insertDefault();
++col;
if (X509_PUBKEY * pkey = X509_get_X509_PUBKEY(cert))
{
char buf[1024] = {0};
ASN1_OBJECT *ppkalg = nullptr;
const unsigned char *pk = nullptr;
int ppklen = 0;
X509_ALGOR *pa = nullptr;
if (X509_PUBKEY_get0_param(&ppkalg, &pk, &ppklen, &pa, pkey) &&
i2a_ASN1_OBJECT(b, ppkalg) > 0 && BIO_read(b, buf, sizeof(buf)) > 0)
res_columns[col]->insert(buf);
else
res_columns[col]->insertDefault();
}
else
res_columns[col]->insertDefault();
++col;
res_columns[col++]->insert(path);
res_columns[col++]->insert(def);
}
static void enumCertificates(const std::string & dir, bool def, MutableColumns & res_columns)
{
static const RE2 cert_name("^[a-fA-F0-9]{8}\\.\\d$");
assert(cert_name.ok());
const std::filesystem::path p(dir);
for (auto const& dir_entry : std::filesystem::directory_iterator(p))
{
if (!dir_entry.is_regular_file() || !RE2::FullMatch(dir_entry.path().filename().string(), cert_name))
continue;
Poco::Crypto::X509Certificate cert(dir_entry.path());
populateTable(cert.certificate(), res_columns, dir_entry.path(), def);
}
}
#endif
void StorageSystemCertificates::fillData([[maybe_unused]] MutableColumns & res_columns, ContextPtr/* context*/, const SelectQueryInfo &) const
{
#if 0 /*USE_SSL*/
const auto & ca_paths = Poco::Net::SSLManager::instance().defaultServerContext()->getCAPaths();
if (!ca_paths.caLocation.empty())
{
Poco::File afile(ca_paths.caLocation);
if (afile.exists())
{
if (afile.isDirectory())
{
auto dir_set = parse_dir(ca_paths.caLocation);
for (const auto & entry : dir_set)
enumCertificates(entry, false, res_columns);
}
else
{
auto certs = Poco::Crypto::X509Certificate::readPEM(afile.path());
for (const auto & cert : certs)
populateTable(cert.certificate(), res_columns, afile.path(), false);
}
}
}
if (!ca_paths.caDefaultDir.empty())
{
auto dir_set = parse_dir(ca_paths.caDefaultDir);
for (const auto & entry : dir_set)
enumCertificates(entry, true, res_columns);
}
if (!ca_paths.caDefaultFile.empty())
{
Poco::File afile(ca_paths.caDefaultFile);
if (afile.exists())
{
auto certs = Poco::Crypto::X509Certificate::readPEM(ca_paths.caDefaultFile);
for (const auto & cert : certs)
populateTable(cert.certificate(), res_columns, ca_paths.caDefaultFile, true);
}
}
#endif
}
}
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