mirror of https://gitee.com/bigwinds/arangodb
132 lines
3.4 KiB
C++
132 lines
3.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#include "ssl-helper.h"
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#include "Logger/Logger.h"
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#include <openssl/err.h>
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using namespace arangodb;
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#ifndef OPENSSL_NO_SSL3_METHOD
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extern "C" const SSL_METHOD* SSLv3_method(void);
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#endif
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////////////////////////////////////////////////////////////////////////////////
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/// @brief creates an SSL context
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////////////////////////////////////////////////////////////////////////////////
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SSL_CTX* arangodb::sslContext(protocol_e protocol, std::string const& keyfile) {
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// create our context
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SSL_METHOD SSL_CONST* meth = nullptr;
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switch (protocol) {
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#ifndef OPENSSL_NO_SSL2
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case SSL_V2:
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meth = SSLv2_method();
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break;
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#endif
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#ifndef OPENSSL_NO_SSL3_METHOD
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case SSL_V3:
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meth = SSLv3_method();
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break;
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#endif
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case SSL_V23:
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meth = SSLv23_method();
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break;
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case TLS_V1:
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meth = TLSv1_method();
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break;
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case TLS_V12:
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meth = TLSv1_2_method();
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break;
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default:
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LOG(ERR) << "unknown SSL protocol method";
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return nullptr;
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}
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SSL_CTX* sslctx = SSL_CTX_new(meth);
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// load our keys and certificates
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if (!SSL_CTX_use_certificate_chain_file(sslctx, keyfile.c_str())) {
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LOG(ERR) << "cannot read certificate from '" << keyfile
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<< "': " << lastSSLError();
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return nullptr;
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}
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if (!SSL_CTX_use_PrivateKey_file(sslctx, keyfile.c_str(), SSL_FILETYPE_PEM)) {
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LOG(ERR) << "cannot read key from '" << keyfile
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<< "': " << lastSSLError();
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return nullptr;
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}
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#if (OPENSSL_VERSION_NUMBER < 0x00905100L)
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SSL_CTX_set_verify_depth(sslctx, 1);
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#endif
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return sslctx;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get the name of an SSL protocol version
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////////////////////////////////////////////////////////////////////////////////
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std::string arangodb::protocolName(protocol_e protocol) {
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switch (protocol) {
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case SSL_V2:
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return "SSLv2";
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case SSL_V23:
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return "SSLv23";
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case SSL_V3:
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return "SSLv3";
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case TLS_V1:
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return "TLSv1";
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case TLS_V12:
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return "TLSv12";
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default:
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return "unknown";
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief get last SSL error
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////////////////////////////////////////////////////////////////////////////////
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std::string arangodb::lastSSLError() {
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char buf[122];
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memset(buf, 0, sizeof(buf));
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unsigned long err = ERR_get_error();
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ERR_error_string_n(err, buf, sizeof(buf) - 1);
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return std::string(buf);
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}
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