include/libtorrent/udp_tracker_connection.hpp

   1 /*
   2
   3 Copyright (c) 2003, 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_UDP_TRACKER_CONNECTION_HPP_INCLUDED
  34 #define TORRENT_UDP_TRACKER_CONNECTION_HPP_INCLUDED
  35
  36 #include <vector>
  37 #include <string>
  38 #include <utility>
  39 #include <ctime>
  40
  41 #ifdef _MSC_VER
  42 #pragma warning(push, 1)
  43 #endif
  44
  45 #include <boost/shared_ptr.hpp>
  46 #include <boost/cstdint.hpp>
  47
  48 #ifdef _MSC_VER
  49 #pragma warning(pop)
  50 #endif
  51
  52 #include "libtorrent/udp_socket.hpp"
  53 #include "libtorrent/entry.hpp"
  54 #include "libtorrent/session_settings.hpp"
  55 #include "libtorrent/peer_id.hpp"
  56 #include "libtorrent/peer.hpp"
  57 #include "libtorrent/tracker_manager.hpp"
  58 #include "libtorrent/config.hpp"
  59
  60 namespace libtorrent
  61 {
  62         class TORRENT_EXPORT udp_tracker_connection: public tracker_connection
  63         {
  64         friend class tracker_manager;
  65         public:
  66
  67                 udp_tracker_connection(
  68                         io_service& ios
  69                         , connection_queue& cc
  70                         , tracker_manager& man
  71                         , tracker_request const& req
  72                         , address bind_infc
  73                         , boost::weak_ptr<request_callback> c
  74                         , session_settings const& stn
  75                         , proxy_settings const& ps);
  76
  77                 void close();
  78
  79         private:
  80
  81                 enum action_t
  82                 {
  83                         action_connect,
  84                         action_announce,
  85                         action_scrape,
  86                         action_error
  87                 };
  88
  89                 boost::intrusive_ptr<udp_tracker_connection> self()
  90                 { return boost::intrusive_ptr<udp_tracker_connection>(this); }
  91
  92                 void name_lookup(error_code const& error, udp::resolver::iterator i);
  93                 void timeout(error_code const& error);
  94
  95                 void on_receive(error_code const& e, udp::endpoint const& ep
  96                         , char const* buf, int size);
  97                 void on_connect_response(char const* buf, int size);
  98                 void on_announce_response(char const* buf, int size);
  99                 void on_scrape_response(char const* buf, int size);
 100
 101                 void send_udp_connect();
 102                 void send_udp_announce();
 103                 void send_udp_scrape();
 104
 105                 virtual void on_timeout();
 106
 107                 tracker_manager& m_man;
 108
 109                 udp::resolver m_name_lookup;
 110                 udp_socket m_socket;
 111                 udp::endpoint m_target;
 112
 113                 int m_transaction_id;
 114                 boost::int64_t m_connection_id;
 115                 session_settings const& m_settings;
 116                 int m_attempts;
 117
 118                 action_t m_state;
 119         };
 120
 121 }
 122
 123 #endif // TORRENT_UDP_TRACKER_CONNECTION_HPP_INCLUDED
 124