164 lines
4.1 KiB
C++
Executable File
164 lines
4.1 KiB
C++
Executable File
/*
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Copyright (c) 2003, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_TRACKER_MANAGER_HPP_INCLUDED
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#define TORRENT_TRACKER_MANAGER_HPP_INCLUDED
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#include <vector>
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#include <string>
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#include <utility>
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#include <ctime>
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#ifdef _MSC_VER
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#pragma warning(push, 1)
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#endif
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#include <boost/shared_ptr.hpp>
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#include <boost/date_time/posix_time/posix_time.hpp>
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#include <boost/cstdint.hpp>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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#include "libtorrent/socket.hpp"
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#include "libtorrent/entry.hpp"
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#include "libtorrent/http_settings.hpp"
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#include "libtorrent/peer_id.hpp"
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#include "libtorrent/peer.hpp"
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namespace libtorrent
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{
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struct request_callback;
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class tracker_manager;
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// encodes a string using the base64 scheme
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std::string base64encode(const std::string& s);
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// returns -1 if gzip header is invalid or the header size in bytes
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int gzip_header(const char* buf, int size);
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bool inflate_gzip(
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std::vector<char>& buffer
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, request_callback* requester
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, int maximum_tracker_response_length);
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struct tracker_request
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{
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enum event_t
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{
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none,
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completed,
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started,
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stopped
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};
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sha1_hash info_hash;
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peer_id id;
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size_type downloaded;
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size_type uploaded;
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size_type left;
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unsigned short listen_port;
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event_t event;
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std::string url;
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int key;
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int num_want;
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};
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struct request_callback
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{
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friend class tracker_manager;
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request_callback(): m_manager(0) {}
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virtual ~request_callback();
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virtual void tracker_response(
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std::vector<peer_entry>& peers
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, int interval) = 0;
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virtual void tracker_request_timed_out() = 0;
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virtual void tracker_request_error(
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int response_code
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, const std::string& description) = 0;
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address m_tracker_address;
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#ifndef NDEBUG
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virtual void debug_log(const std::string& line) = 0;
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#endif
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private:
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tracker_manager* m_manager;
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};
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struct tracker_connection: boost::noncopyable
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{
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tracker_connection(request_callback* r)
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: m_requester(r)
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{}
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virtual bool tick() = 0;
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virtual bool send_finished() const = 0;
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request_callback* requester() { return m_requester; }
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virtual ~tracker_connection() {}
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private:
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request_callback* m_requester;
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};
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class tracker_manager: boost::noncopyable
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{
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public:
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tracker_manager(const http_settings& s)
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: m_settings(s) {}
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void tick();
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void queue_request(
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tracker_request const& r
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, request_callback* c = 0
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, std::string const& password = "");
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void abort_request(request_callback* c);
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void abort_all_requests();
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bool send_finished() const;
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private:
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std::vector<boost::shared_ptr<tracker_connection> > m_connections;
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const http_settings& m_settings;
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};
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inline request_callback::~request_callback()
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{ if (m_manager) m_manager->abort_request(this); }
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}
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#endif // TORRENT_TRACKER_MANAGER_HPP_INCLUDED
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