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/*
* Copyright (c) 2002-2009 Moxie Marlinspike
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#ifndef __RAW_BRIDGE_H__
#define __RAW_BRIDGE_H__
#include <boost/bind.hpp>
#include <boost/asio.hpp>
#include <boost/shared_ptr.hpp>
#include "Bridge.hpp"
using namespace boost::asio;
class RawBridge : public Bridge {
private:
int closed;
boost::shared_ptr<ip::tcp::socket> clientSocket;
ip::tcp::socket serverSocket;
ip::tcp::endpoint destination;
boost::asio::io_service &io_service;
RawBridge(boost::shared_ptr<ip::tcp::socket> clientSocket,
ip::tcp::endpoint& destination,
boost::asio::io_service & io_service) :
clientSocket(clientSocket), serverSocket(io_service),
io_service(io_service), destination(destination), closed(0)
{}
void handleConnect(Bridge::ptr bridge, const boost::system::error_code &error) {
if (!error) Bridge::shuttle(&(*clientSocket), &serverSocket);
else close();
}
protected:
virtual void processClientInput(char *buffer, int length) {}
public:
static ptr create(boost::shared_ptr<ip::tcp::socket> clientSocket,
ip::tcp::endpoint& destination,
boost::asio::io_service & io_service)
{
return ptr(new RawBridge(clientSocket, destination, io_service));
}
virtual ip::tcp::socket& getClientSocket() {
return *clientSocket;
}
virtual ip::tcp::socket& getServerSocket() {
return serverSocket;
}
virtual void shuttle() {
serverSocket.async_connect(destination, boost::bind(&RawBridge::handleConnect,
this,
Bridge::getSmartPointer(),
placeholders::error));
}
virtual void close() {
if (!closed) closed = 1;
if (clientSocket->is_open()) {
clientSocket->cancel();
clientSocket->close();
}
if (serverSocket.is_open()) {
serverSocket.cancel();
serverSocket.close();
}
}
};
#endif
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