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/*
* \file websocket_client_connection.h
* \brief WebsocketClientConnection class header file.
*
* Copyright (c) 2018, Livio
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_TRANSPORT_MANAGER_INCLUDE_TRANSPORT_MANAGER_CLOUD_WEBSOCKET_CLIENT_CONNECTION_H_
#define SRC_COMPONENTS_TRANSPORT_MANAGER_INCLUDE_TRANSPORT_MANAGER_CLOUD_WEBSOCKET_CLIENT_CONNECTION_H_
#include <boost/asio/connect.hpp>
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/thread_pool.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/websocket.hpp>
#ifdef ENABLE_SECURITY
#include <boost/asio/ssl/stream.hpp>
#include <boost/beast/websocket/ssl.hpp>
#endif // ENABLE_SECURITY
#include <cstdlib>
#include <functional>
#include <iostream>
#include <memory>
#include <string>
#include <thread>
#include "transport_manager/cloud/cloud_websocket_transport_adapter.h"
#include "transport_manager/transport_adapter/connection.h"
#include "utils/message_queue.h"
#include "utils/threads/message_loop_thread.h"
#include "utils/threads/thread.h"
namespace websocket =
boost::beast::websocket; // from <boost/beast/websocket.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
typedef websocket::stream<tcp::socket> WS;
#ifdef ENABLE_SECURITY
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
typedef websocket::stream<ssl::stream<tcp::socket> > WSS;
#endif // ENABLE_SECURITY
using ::utils::MessageQueue;
typedef std::queue<protocol_handler::RawMessagePtr> AsyncQueue;
typedef protocol_handler::RawMessagePtr Message;
namespace transport_manager {
namespace transport_adapter {
class TransportAdapterController;
/**
* @brief Class responsible for communication over bluetooth sockets.
*/
class WebsocketClientConnection
: public std::enable_shared_from_this<WebsocketClientConnection>,
public Connection {
public:
/**
* @brief Constructor.
*
* @param device_uid Device unique identifier.
* @param app_handle Handle of device.
* @param controller Pointer to the device adapter controller.
*/
WebsocketClientConnection(const DeviceUID& device_uid,
const ApplicationHandle& app_handle,
TransportAdapterController* controller);
/**
* @brief Destructor.
*/
virtual ~WebsocketClientConnection();
/**
* @brief Check if we can start the connection attempt and establish
*connection status.
*
* @param error contains information of any error that occurred during
*connection attempt.
*
* @return result that states whether we successfully connected or not.
*/
TransportAdapter::Error Start();
/**
* @brief Send data frame.
*
* @param message Smart pointer to the raw message.
*
* @return Error Information about possible reason of sending data failure.
*/
TransportAdapter::Error SendData(::protocol_handler::RawMessagePtr message);
/**
* @brief Disconnect the current connection.
*
* @return Error Information about possible reason of Disconnect failure.
*/
TransportAdapter::Error Disconnect();
#ifdef ENABLE_SECURITY
/**
* @brief Attempt to add provided certificate to the ssl::context
*
* @param cert Certificate string from policy table
*/
void AddCertificateAuthority(std::string cert, boost::system::error_code& ec);
#endif // ENABLE_SECURITY
void Shutdown();
void Recv(boost::system::error_code ec);
void OnRead(boost::system::error_code ec, std::size_t bytes_transferred);
private:
TransportAdapterController* controller_;
boost::asio::io_context ioc_;
tcp::resolver resolver_;
boost::beast::flat_buffer buffer_;
std::string host_;
std::string text_;
WS ws_;
#ifdef ENABLE_SECURITY
ssl::context ctx_;
WSS wss_;
#endif // ENABLE_SECURITY
std::atomic_bool shutdown_;
CloudAppProperties cloud_properties;
typedef std::queue<protocol_handler::RawMessagePtr> FrameQueue;
FrameQueue frames_to_send_;
mutable sync_primitives::Lock frames_to_send_mutex_;
MessageQueue<Message, AsyncQueue> message_queue_;
class LoopThreadDelegate : public threads::ThreadDelegate {
public:
LoopThreadDelegate(MessageQueue<Message, AsyncQueue>* message_queue,
WebsocketClientConnection* handler);
virtual void threadMain() OVERRIDE;
virtual void exitThreadMain() OVERRIDE;
void OnWrite();
void SetShutdown();
private:
void DrainQueue();
MessageQueue<Message, AsyncQueue>& message_queue_;
WebsocketClientConnection& handler_;
sync_primitives::Lock queue_lock_;
sync_primitives::ConditionalVariable queue_new_items_;
std::atomic_bool shutdown_;
sync_primitives::Lock write_lock_;
};
LoopThreadDelegate* thread_delegate_;
threads::Thread* write_thread_;
std::thread io_service_thread_;
const DeviceUID device_uid_;
const ApplicationHandle app_handle_;
boost::asio::thread_pool io_pool_;
};
} // namespace transport_adapter
} // namespace transport_manager
#endif // SRC_COMPONENTS_TRANSPORT_MANAGER_INCLUDE_TRANSPORT_MANAGER_BLUETOOTH_BLUETOOTH_SOCKET_CONNECTION_H_
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