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/*
* Copyright (c) 2011 Tobias Markmann
* Licensed under the simplified BSD license.
* See Documentation/Licenses/BSD-simplified.txt for more information.
*/
/*
* Copyright (c) 2015-2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#pragma once
#include <memory>
#include <boost/optional.hpp>
#include <Swiften/Base/API.h>
#include <Swiften/Base/ByteArray.h>
#include <Swiften/FileTransfer/FileTransferError.h>
#include <Swiften/FileTransfer/ReadBytestream.h>
#include <Swiften/FileTransfer/WriteBytestream.h>
#include <Swiften/JID/JID.h>
#include <Swiften/Network/Connection.h>
#include <Swiften/Network/HostAddressPort.h>
#include <Swiften/Network/Timer.h>
namespace Swift {
class SOCKS5BytestreamRegistry;
class Connection;
class TimerFactory;
/**
* A session which has been connected to a SOCKS5 server (requester).
*
*/
class SWIFTEN_API SOCKS5BytestreamClientSession {
public:
enum State {
Initial,
Hello,
Authenticating,
Ready,
Writing,
Reading,
Finished
};
public:
typedef std::shared_ptr<SOCKS5BytestreamClientSession> ref;
public:
SOCKS5BytestreamClientSession(
std::shared_ptr<Connection> connection,
const HostAddressPort&,
const std::string&,
TimerFactory*);
~SOCKS5BytestreamClientSession();
void start();
void stop();
void startReceiving(std::shared_ptr<WriteBytestream>);
void startSending(std::shared_ptr<ReadBytestream>);
HostAddressPort getAddressPort() const;
boost::signals2::signal<void (bool /*error*/)> onSessionReady;
boost::signals2::signal<void (boost::optional<FileTransferError>)> onFinished;
boost::signals2::signal<void (size_t)> onBytesSent;
// boost::signals2::signal<void (size_t)> onBytesReceived;
private:
void process();
void hello();
void authenticate();
void handleConnectFinished(bool error);
void handleDataRead(std::shared_ptr<SafeByteArray>);
void handleDisconnected(const boost::optional<Connection::Error>&);
void handleWeFailedTimeout();
void finish(bool error);
void sendData();
void closeConnection();
private:
std::shared_ptr<Connection> connection;
HostAddressPort addressPort;
std::string destination; // hexify(SHA1(sessionID + requester + target))
State state;
ByteArray unprocessedData;
ByteArray authenticateAddress;
int chunkSize;
std::shared_ptr<WriteBytestream> writeBytestream;
std::shared_ptr<ReadBytestream> readBytestream;
Timer::ref weFailedTimeout;
boost::signals2::scoped_connection connectFinishedConnection;
boost::signals2::scoped_connection dataWrittenConnection;
boost::signals2::scoped_connection dataReadConnection;
boost::signals2::scoped_connection disconnectedConnection;
};
}
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Swift