105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/*
|
|
|
|
Copyright (c) 2007, Arvid Norberg
|
|
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 author 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 OWNER 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 TORRENT_SOCKS5_STREAM_HPP_INCLUDED
|
|
#define TORRENT_SOCKS5_STREAM_HPP_INCLUDED
|
|
|
|
#include "libtorrent/proxy_base.hpp"
|
|
|
|
namespace libtorrent {
|
|
|
|
class socks5_stream : public proxy_base
|
|
{
|
|
public:
|
|
|
|
explicit socks5_stream(asio::io_service& io_service)
|
|
: proxy_base(io_service)
|
|
{}
|
|
|
|
void set_username(std::string const& user
|
|
, std::string const& password)
|
|
{
|
|
m_user = user;
|
|
m_password = password;
|
|
}
|
|
|
|
typedef boost::function<void(asio::error_code const&)> handler_type;
|
|
|
|
template <class Handler>
|
|
void async_connect(endpoint_type const& endpoint, Handler const& handler)
|
|
{
|
|
m_remote_endpoint = endpoint;
|
|
|
|
// the connect is split up in the following steps:
|
|
// 1. resolve name of proxy server
|
|
// 2. connect to proxy server
|
|
// 3. send SOCKS5 authentication method message
|
|
// 4. read SOCKS5 authentication response
|
|
// 5. send username+password
|
|
// 6. send SOCKS5 CONNECT message
|
|
|
|
// to avoid unnecessary copying of the handler,
|
|
// store it in a shaed_ptr
|
|
boost::shared_ptr<handler_type> h(new handler_type(handler));
|
|
|
|
tcp::resolver::query q(m_hostname
|
|
, boost::lexical_cast<std::string>(m_port));
|
|
m_resolver.async_resolve(q, boost::bind(
|
|
&socks5_stream::name_lookup, this, _1, _2, h));
|
|
}
|
|
|
|
private:
|
|
|
|
void name_lookup(asio::error_code const& e, tcp::resolver::iterator i
|
|
, boost::shared_ptr<handler_type> h);
|
|
void connected(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void handshake1(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void handshake2(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void handshake3(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void handshake4(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void socks_connect(boost::shared_ptr<handler_type> h);
|
|
void connect1(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void connect2(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
void connect3(asio::error_code const& e, boost::shared_ptr<handler_type> h);
|
|
|
|
// send and receive buffer
|
|
std::vector<char> m_buffer;
|
|
// proxy authentication
|
|
std::string m_user;
|
|
std::string m_password;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|