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https://github.com/ClickHouse/ClickHouse.git
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85d783c247
* Remove config_common.h * Refactor libcpuid contrib * Remove support for libcpuinfo * Define USE_CPUID in Arcadia * Refactor Poco libraries
135 lines
4.6 KiB
C++
135 lines
4.6 KiB
C++
#include "MySQLHandlerFactory.h"
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#include <Common/OpenSSLHelpers.h>
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#include <Poco/Net/TCPServerConnectionFactory.h>
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#include <Poco/Util/Application.h>
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#include <common/logger_useful.h>
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#include <ext/scope_guard.h>
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#include "IServer.h"
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#include "MySQLHandler.h"
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#if USE_SSL
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# include <Poco/Net/SSLManager.h>
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#endif
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int CANNOT_OPEN_FILE;
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extern const int NO_ELEMENTS_IN_CONFIG;
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extern const int OPENSSL_ERROR;
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}
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MySQLHandlerFactory::MySQLHandlerFactory(IServer & server_)
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: server(server_)
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, log(&Logger::get("MySQLHandlerFactory"))
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{
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#if USE_SSL
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try
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{
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Poco::Net::SSLManager::instance().defaultServerContext();
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}
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catch (...)
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{
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LOG_TRACE(log, "Failed to create SSL context. SSL will be disabled. Error: " << getCurrentExceptionMessage(false));
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ssl_enabled = false;
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}
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/// Reading rsa keys for SHA256 authentication plugin.
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try
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{
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readRSAKeys();
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}
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catch (...)
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{
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LOG_TRACE(log, "Failed to read RSA key pair from server certificate. Error: " << getCurrentExceptionMessage(false));
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generateRSAKeys();
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}
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#endif
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}
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#if USE_SSL
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void MySQLHandlerFactory::readRSAKeys()
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{
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const Poco::Util::LayeredConfiguration & config = Poco::Util::Application::instance().config();
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String certificate_file_property = "openSSL.server.certificateFile";
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String private_key_file_property = "openSSL.server.privateKeyFile";
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if (!config.has(certificate_file_property))
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throw Exception("Certificate file is not set.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
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if (!config.has(private_key_file_property))
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throw Exception("Private key file is not set.", ErrorCodes::NO_ELEMENTS_IN_CONFIG);
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{
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String certificate_file = config.getString(certificate_file_property);
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FILE * fp = fopen(certificate_file.data(), "r");
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if (fp == nullptr)
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throw Exception("Cannot open certificate file: " + certificate_file + ".", ErrorCodes::CANNOT_OPEN_FILE);
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SCOPE_EXIT(fclose(fp));
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X509 * x509 = PEM_read_X509(fp, nullptr, nullptr, nullptr);
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SCOPE_EXIT(X509_free(x509));
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if (x509 == nullptr)
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throw Exception("Failed to read PEM certificate from " + certificate_file + ". Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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EVP_PKEY * p = X509_get_pubkey(x509);
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if (p == nullptr)
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throw Exception("Failed to get RSA key from X509. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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SCOPE_EXIT(EVP_PKEY_free(p));
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public_key.reset(EVP_PKEY_get1_RSA(p));
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if (public_key.get() == nullptr)
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throw Exception("Failed to get RSA key from ENV_PKEY. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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}
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{
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String private_key_file = config.getString(private_key_file_property);
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FILE * fp = fopen(private_key_file.data(), "r");
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if (fp == nullptr)
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throw Exception ("Cannot open private key file " + private_key_file + ".", ErrorCodes::CANNOT_OPEN_FILE);
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SCOPE_EXIT(fclose(fp));
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private_key.reset(PEM_read_RSAPrivateKey(fp, nullptr, nullptr, nullptr));
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if (!private_key)
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throw Exception("Failed to read RSA private key from " + private_key_file + ". Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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}
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}
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void MySQLHandlerFactory::generateRSAKeys()
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{
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LOG_TRACE(log, "Generating new RSA key pair.");
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public_key.reset(RSA_new());
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if (!public_key)
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throw Exception("Failed to allocate RSA key. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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BIGNUM * e = BN_new();
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if (!e)
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throw Exception("Failed to allocate BIGNUM. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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SCOPE_EXIT(BN_free(e));
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if (!BN_set_word(e, 65537) || !RSA_generate_key_ex(public_key.get(), 2048, e, nullptr))
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throw Exception("Failed to generate RSA key. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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private_key.reset(RSAPrivateKey_dup(public_key.get()));
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if (!private_key)
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throw Exception("Failed to copy RSA key. Error: " + getOpenSSLErrors(), ErrorCodes::OPENSSL_ERROR);
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}
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#endif
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Poco::Net::TCPServerConnection * MySQLHandlerFactory::createConnection(const Poco::Net::StreamSocket & socket)
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{
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size_t connection_id = last_connection_id++;
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LOG_TRACE(log, "MySQL connection. Id: " << connection_id << ". Address: " << socket.peerAddress().toString());
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#if USE_SSL
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return new MySQLHandlerSSL(server, socket, ssl_enabled, connection_id, *public_key, *private_key);
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#else
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return new MySQLHandler(server, socket, ssl_enabled, connection_id);
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#endif
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}
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}
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