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/*
* Copyright (c) 2015 Oleg Morozenkov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* 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 AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TGBOT_HTTPSERVER_H
#define TGBOT_HTTPSERVER_H
#include <string>
#include <boost/asio.hpp>
#include "tgbot/net/HttpParser.h"
namespace TgBot {
/**
* @brief This class handles HTTP requests from the Internet.
*
* @ingroup net
*/
template<typename Protocol>
class HttpServer {
protected:
class Connection;
public:
typedef std::function<std::string (const std::string&, const std::map<std::string, std::string>)> ServerHandler;
HttpServer(std::shared_ptr<boost::asio::basic_socket_acceptor<Protocol>> acceptor, const ServerHandler& handler) : _acceptor(acceptor), _handler(handler) {
}
/**
* @brief Starts receiving new connections.
*/
void start() {
auto socket(std::make_shared<boost::asio::basic_stream_socket<Protocol>>(_acceptor->get_io_service()));
auto connection(std::make_shared<Connection>(socket, _handler));
_acceptor->async_accept(*connection->socket, [this, connection]() {
connection->start();
start();
});
_ioService.run();
}
/**
* @brief Stops receiving new connections.
*/
void stop() {
_ioService.stop();
}
protected:
class Connection {
public:
Connection(std::shared_ptr<boost::asio::basic_stream_socket<Protocol>>& socket, const ServerHandler& handler) : socket(socket), _handler(handler) {
boost::asio::socket_base::keep_alive option(true);
socket.set_option(option);
}
void start() {
data.reserve(10240);
socket->async_receive(data, [this]() {
std::map<std::string, std::string> headers;
std::string body = HttpParser::getInstance().parseResponse(data, headers);
socket->async_send(_handler(body, headers));
});
}
std::shared_ptr<boost::asio::basic_stream_socket<Protocol>> socket;
std::string data;
protected:
const ServerHandler _handler;
};
boost::asio::io_service _ioService;
std::shared_ptr<boost::asio::basic_socket_acceptor<Protocol>> _acceptor;
const ServerHandler _handler;
};
}
#endif //TGBOT_HTTPSERVER_H
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