include/libtorrent/http_stream.hpp

   1 /*
   2
   3 Copyright (c) 2007, Arvid Norberg
   4 All rights reserved.
   5
   6 Redistribution and use in source and binary forms, with or without
   7 modification, are permitted provided that the following conditions
   8 are met:
   9
  10     * Redistributions of source code must retain the above copyright
  11       notice, this list of conditions and the following disclaimer.
  12     * Redistributions in binary form must reproduce the above copyright
  13       notice, this list of conditions and the following disclaimer in
  14       the documentation and/or other materials provided with the distribution.
  15     * Neither the name of the author nor the names of its
  16       contributors may be used to endorse or promote products derived
  17       from this software without specific prior written permission.
  18
  19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  23 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29 POSSIBILITY OF SUCH DAMAGE.
  30
  31 */
  32
  33 #ifndef TORRENT_HTTP_STREAM_HPP_INCLUDED
  34 #define TORRENT_HTTP_STREAM_HPP_INCLUDED
  35
  36 #include "libtorrent/proxy_base.hpp"
  37
  38 namespace libtorrent {
  39
  40 class http_stream : public proxy_base
  41 {
  42 public:
  43
  44         explicit http_stream(io_service& io_service)
  45                 : proxy_base(io_service)
  46                 , m_no_connect(false)
  47         {}
  48
  49         void set_no_connect(bool c) { m_no_connect = c; }
  50
  51         void set_username(std::string const& user
  52                 , std::string const& password)
  53         {
  54                 m_user = user;
  55                 m_password = password;
  56         }
  57
  58         typedef boost::function<void(error_code const&)> handler_type;
  59
  60         template <class Handler>
  61         void async_connect(endpoint_type const& endpoint, Handler const& handler)
  62         {
  63                 m_remote_endpoint = endpoint;
  64
  65                 // the connect is split up in the following steps:
  66                 // 1. resolve name of proxy server
  67                 // 2. connect to proxy server
  68                 // 3. send HTTP CONNECT method and possibly username+password
  69                 // 4. read CONNECT response
  70
  71                 // to avoid unnecessary copying of the handler,
  72                 // store it in a shaed_ptr
  73                 boost::shared_ptr<handler_type> h(new handler_type(handler));
  74
  75                 tcp::resolver::query q(m_hostname
  76                         , boost::lexical_cast<std::string>(m_port));
  77                 m_resolver.async_resolve(q, boost::bind(
  78                         &http_stream::name_lookup, this, _1, _2, h));
  79         }
  80
  81 private:
  82
  83         void name_lookup(error_code const& e, tcp::resolver::iterator i
  84                 , boost::shared_ptr<handler_type> h);
  85         void connected(error_code const& e, boost::shared_ptr<handler_type> h);
  86         void handshake1(error_code const& e, boost::shared_ptr<handler_type> h);
  87         void handshake2(error_code const& e, boost::shared_ptr<handler_type> h);
  88
  89         // send and receive buffer
  90         std::vector<char> m_buffer;
  91         // proxy authentication
  92         std::string m_user;
  93         std::string m_password;
  94
  95         // this is true if the connection is HTTP based and
  96         // want to talk directly to the proxy
  97         bool m_no_connect;
  98 };
  99
 100 }
 101
 102 #endif