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/***
This file is part of snapcast
Copyright (C) 2014-2024 Johannes Pohl
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
***/
#pragma once
// local headers
#include "control_session.hpp"
#include "server_settings.hpp"
// 3rd party headers
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/beast/core.hpp>
#include <boost/beast/ssl.hpp>
#include <boost/beast/websocket.hpp>
// standard headers
#include <deque>
#include <optional>
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
using tcp_socket = boost::asio::ip::tcp::socket;
using ssl_socket = boost::asio::ssl::stream<tcp_socket>;
/// Endpoint for a connected control client.
/**
* Endpoint for a connected control client.
* Messages are sent to the client with the "send" method.
* Received messages from the client are passed to the ControlMessageReceiver callback
*/
class ControlSessionHttp : public ControlSession
{
public:
/// c'tor for ssl sockets. Received message from the client are passed to ControlMessageReceiver
ControlSessionHttp(ControlMessageReceiver* receiver, ssl_socket&& socket, const ServerSettings& settings);
/// c'tor for tcp sockets
ControlSessionHttp(ControlMessageReceiver* receiver, tcp_socket&& socket, const ServerSettings& settings);
~ControlSessionHttp() override;
void start() override;
void stop() override;
/// Sends a message to the client (asynchronous)
void sendAsync(const std::string& message) override;
private:
/// HTTP on read callback
void on_read(beast::error_code ec, std::size_t bytes_transferred);
/// HTTP on write callback
void on_write(beast::error_code ec, std::size_t bytes, bool close);
/// Handle an incoming HTTP request
template <class Body, class Allocator, class Send>
void handle_request(http::request<Body, http::basic_fields<Allocator>>&& req, Send&& send);
http::request<http::string_body> req_;
std::optional<tcp_socket> tcp_socket_;
std::optional<ssl_socket> ssl_socket_;
beast::flat_buffer buffer_;
ServerSettings settings_;
std::deque<std::string> messages_;
bool is_ssl_;
};
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