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FunctionShowCertificate.cpp
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149 lines (116 loc) · 4.27 KB
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#include "config.h"
#include <memory>
#include <string>
#include <Columns/ColumnMap.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnTuple.h>
#include <Columns/ColumnString.h>
#include <DataTypes/DataTypeMap.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypesNumber.h>
#include <Functions/FunctionFactory.h>
#include <Functions/FunctionHelpers.h>
#include <Functions/IFunction.h>
#include <Interpreters/Context.h>
#include <base/scope_guard.h>
#if USE_SSL
#include <Poco/Net/SSLManager.h>
#include <Common/Crypto/X509Certificate.h>
#endif
namespace DB
{
namespace ErrorCodes
{
extern const int SUPPORT_IS_DISABLED;
}
namespace
{
// showCertificate()
class FunctionShowCertificate : public IFunction
{
public:
static constexpr auto name = "showCertificate";
static FunctionPtr create(ContextPtr ctx [[maybe_unused]])
{
#if USE_SSL
return std::make_shared<FunctionShowCertificate>(ctx->getQueryContext()->getClientInfo().certificate);
#else
throw Exception(ErrorCodes::SUPPORT_IS_DISABLED, "SSL support is disabled");
#endif
}
std::string certificate;
#if USE_SSL
explicit FunctionShowCertificate(const std::string & certificate_ = "") : certificate(certificate_) {}
#endif
String getName() const override { return name; }
size_t getNumberOfArguments() const override { return 0; }
bool isSuitableForShortCircuitArgumentsExecution(const DataTypesWithConstInfo &) const override { return true; }
DataTypePtr getReturnTypeImpl(const ColumnsWithTypeAndName &) const override
{
return std::make_shared<DataTypeMap>(std::make_shared<DataTypeString>(), std::make_shared<DataTypeString>());
}
ColumnPtr executeImpl(const ColumnsWithTypeAndName &, const DataTypePtr &, size_t input_rows_count) const override
{
MutableColumnPtr keys = DataTypeString().createColumn();
MutableColumnPtr values = DataTypeString().createColumn();
MutableColumnPtr offsets = DataTypeNumber<IColumn::Offset>().createColumn();
if (input_rows_count)
{
#if USE_SSL
std::unique_ptr<X509Certificate> x509_cert;
if (!certificate.empty())
x509_cert = std::make_unique<X509Certificate>(certificate);
if (!x509_cert)
{
const auto * server_context_cert = SSL_CTX_get0_certificate(Poco::Net::SSLManager::instance().defaultServerContext()->sslContext());
x509_cert = std::make_unique<X509Certificate>(X509_dup(server_context_cert));
}
if (x509_cert)
{
keys->insert("version");
values->insert(std::to_string(x509_cert->version()));
keys->insert("serial_number");
values->insert(x509_cert->serialNumber());
keys->insert("signature_algo");
values->insert(x509_cert->signatureAlgorithm());
keys->insert("issuer");
values->insert(x509_cert->issuerName());
keys->insert("not_before");
values->insert(x509_cert->validFrom());
keys->insert("not_after");
values->insert(x509_cert->expiresOn());
keys->insert("subject");
values->insert(x509_cert->subjectName());
keys->insert("pkey_algo");
values->insert(x509_cert->publicKeyAlgorithm());
}
offsets->insert(keys->size());
#endif
}
size_t sz = keys->size();
if (sz && input_rows_count > 1)
{
keys->reserve(sz * input_rows_count);
values->reserve(sz * input_rows_count);
offsets->reserve(input_rows_count);
}
for (size_t i = 1; i < input_rows_count; ++i)
{
for (size_t j = 0; j < sz; ++j)
{
keys->insertFrom(*keys, j);
values->insertFrom(*values, j);
}
offsets->insert(keys->size());
}
auto nested_column = ColumnArray::create(
ColumnTuple::create(Columns{std::move(keys), std::move(values)}), std::move(offsets));
return ColumnMap::create(nested_column);
}
};
}
REGISTER_FUNCTION(ShowCertificate)
{
factory.registerFunction<FunctionShowCertificate>();
}
}