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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kASIO
#include "mongo/platform/basic.h"
#include "mongo/executor/async_secure_stream.h"
#include "mongo/base/system_error.h"
#include "mongo/config.h"
#include "mongo/executor/async_stream_common.h"
#include "mongo/util/log.h"
#include "mongo/util/net/ssl_manager.h"
#ifdef MONGO_CONFIG_SSL
namespace mongo {
namespace executor {
AsyncSecureStream::AsyncSecureStream(asio::io_service::strand* strand,
asio::ssl::context* sslContext)
: _strand(strand), _stream(_strand->get_io_service(), *sslContext) {}
AsyncSecureStream::~AsyncSecureStream() {
destroyStream(&_stream.lowest_layer(), _connected);
}
void AsyncSecureStream::connect(const asio::ip::tcp::resolver::iterator endpoints,
ConnectHandler&& connectHandler) {
// Stash the connectHandler as we won't be able to call it until we re-enter the state
// machine.
_userHandler = std::move(connectHandler);
asio::async_connect(
_stream.lowest_layer(),
std::move(endpoints),
_strand->wrap([this](std::error_code ec, asio::ip::tcp::resolver::iterator iter) {
if (ec) {
return _userHandler(ec);
}
ec = setStreamNonBlocking(&_stream.next_layer());
if (ec) {
return _userHandler(ec);
}
ec = setStreamNoDelay(&_stream.next_layer());
if (ec) {
return _userHandler(ec);
}
_connected = true;
return _handleConnect(std::move(iter));
}));
}
void AsyncSecureStream::write(asio::const_buffer buffer, StreamHandler&& streamHandler) {
writeStream(&_stream, _strand, _connected, buffer, std::move(streamHandler));
}
void AsyncSecureStream::read(asio::mutable_buffer buffer, StreamHandler&& streamHandler) {
readStream(&_stream, _strand, _connected, buffer, std::move(streamHandler));
}
void AsyncSecureStream::_handleConnect(asio::ip::tcp::resolver::iterator iter) {
_stream.async_handshake(decltype(_stream)::client,
_strand->wrap([this, iter](std::error_code ec) {
if (ec) {
return _userHandler(ec);
}
return _handleHandshake(ec, iter->host_name());
}));
}
void AsyncSecureStream::_handleHandshake(std::error_code ec, const std::string& hostName) {
auto certStatus =
getSSLManager()->parseAndValidatePeerCertificate(_stream.native_handle(), hostName);
if (!certStatus.isOK()) {
warning() << "Failed to validate peer certificate during SSL handshake: "
<< certStatus.getStatus();
}
_userHandler(make_error_code(certStatus.getStatus().code()));
}
void AsyncSecureStream::cancel() {
cancelStream(&_stream.lowest_layer());
}
bool AsyncSecureStream::isOpen() {
return checkIfStreamIsOpen(&_stream.next_layer(), _connected);
}
} // namespace executor
} // namespace mongo
#endif
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