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//
// Context.cpp
//
// $Id: //poco/Main/NetSSL_OpenSSL/src/Context.cpp#17 $
//
// Library: NetSSL_OpenSSL
// Package: SSLCore
// Module: Context
//
// Copyright (c) 2006-2009, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/Net/Context.h"
#include "Poco/Net/SSLManager.h"
#include "Poco/Net/SSLException.h"
#include "Poco/Net/Utility.h"
#include "Poco/File.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/ssl.h>
#include <openssl/x509v3.h>
namespace Poco {
namespace Net {
Context::Context(
Usage usage,
const std::string& privateKeyFile,
const std::string& certificateFile,
const std::string& caLocation,
VerificationMode verificationMode,
int verificationDepth,
bool loadDefaultCAs,
const std::string& cypherList):
_usage(usage),
_mode(verificationMode),
_pSSLContext(0)
{
_pSSLContext = SSL_CTX_new(SSLv23_method());
if (!_pSSLContext) throw SSLException("Cannot create SSL_CTX object");
SSL_CTX_set_default_passwd_cb(_pSSLContext, &SSLManager::privateKeyPasswdCallback);
Utility::clearErrorStack();
int errCode = 0;
if (!caLocation.empty())
{
Poco::File aFile(caLocation);
if (aFile.isDirectory())
errCode = SSL_CTX_load_verify_locations(_pSSLContext, 0, caLocation.c_str());
else
errCode = SSL_CTX_load_verify_locations(_pSSLContext, caLocation.c_str(), 0);
if (errCode != 1)
{
std::string msg = Utility::getLastError();
SSL_CTX_free(_pSSLContext);
throw SSLContextException(std::string("Cannot load CA file/directory at ") + caLocation, msg);
}
}
if (loadDefaultCAs)
{
errCode = SSL_CTX_set_default_verify_paths(_pSSLContext);
if (errCode != 1)
{
std::string msg = Utility::getLastError();
SSL_CTX_free(_pSSLContext);
throw SSLContextException("Cannot load default CA certificates", msg);
}
}
if (!privateKeyFile.empty())
{
errCode = SSL_CTX_use_PrivateKey_file(_pSSLContext, privateKeyFile.c_str(), SSL_FILETYPE_PEM);
if (errCode != 1)
{
std::string msg = Utility::getLastError();
SSL_CTX_free(_pSSLContext);
throw SSLContextException(std::string("Error loading private key from file ") + privateKeyFile, msg);
}
}
if (!certificateFile.empty())
{
errCode = SSL_CTX_use_certificate_chain_file(_pSSLContext, certificateFile.c_str());
if (errCode != 1)
{
std::string errMsg = Utility::getLastError();
SSL_CTX_free(_pSSLContext);
throw SSLContextException(std::string("Error loading certificate from file ") + privateKeyFile, errMsg);
}
}
if (usage == SERVER_USE)
SSL_CTX_set_verify(_pSSLContext, verificationMode, &SSLManager::verifyServerCallback);
else
SSL_CTX_set_verify(_pSSLContext, verificationMode, &SSLManager::verifyClientCallback);
SSL_CTX_set_verify_depth(_pSSLContext, verificationDepth);
SSL_CTX_set_mode(_pSSLContext, SSL_MODE_AUTO_RETRY);
}
Context::~Context()
{
SSL_CTX_free(_pSSLContext);
}
} } // namespace Poco::Net