311 lines
9.5 KiB
C++
311 lines
9.5 KiB
C++
/*
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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_SESSION_SETTINGS_HPP_INCLUDED
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#define TORRENT_SESSION_SETTINGS_HPP_INCLUDED
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#include "libtorrent/version.hpp"
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#include "libtorrent/config.hpp"
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namespace libtorrent
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{
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struct TORRENT_EXPORT proxy_settings
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{
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proxy_settings() : port(0), type(none) {}
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std::string hostname;
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int port;
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std::string username;
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std::string password;
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enum proxy_type
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{
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// a plain tcp socket is used, and
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// the other settings are ignored.
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none,
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// socks4 server, requires username.
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socks4,
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// the hostname and port settings are
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// used to connect to the proxy. No
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// username or password is sent.
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socks5,
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// the hostname and port are used to
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// connect to the proxy. the username
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// and password are used to authenticate
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// with the proxy server.
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socks5_pw,
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// the http proxy is only available for
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// tracker and web seed traffic
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// assumes anonymous access to proxy
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http,
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// http proxy with basic authentication
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// uses username and password
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http_pw
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};
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proxy_type type;
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};
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struct TORRENT_EXPORT session_settings
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{
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session_settings(std::string const& user_agent_ = "libtorrent/"
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LIBTORRENT_VERSION)
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: user_agent(user_agent_)
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, tracker_completion_timeout(60)
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, tracker_receive_timeout(20)
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, stop_tracker_timeout(10)
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, tracker_maximum_response_length(1024*1024)
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, piece_timeout(120)
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, request_queue_time(3.f)
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, max_allowed_in_request_queue(250)
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, max_out_request_queue(200)
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, whole_pieces_threshold(20)
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, peer_timeout(120)
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, urlseed_timeout(20)
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, urlseed_pipeline_size(5)
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, file_pool_size(40)
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, allow_multiple_connections_per_ip(false)
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, max_failcount(3)
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, min_reconnect_time(60)
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, peer_connect_timeout(10)
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, ignore_limits_on_local_network(true)
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, connection_speed(20)
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, send_redundant_have(false)
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, lazy_bitfields(true)
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, inactivity_timeout(600)
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#ifndef TORRENT_DISABLE_DHT
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, use_dht_as_fallback(true)
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#endif
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{}
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// this is the user agent that will be sent to the tracker
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// when doing requests. It is used to identify the client.
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// It cannot contain \r or \n
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std::string user_agent;
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// the number of seconds to wait until giving up on a
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// tracker request if it hasn't finished
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int tracker_completion_timeout;
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// the number of seconds where no data is received
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// from the tracker until it should be considered
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// as timed out
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int tracker_receive_timeout;
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// the time to wait when sending a stopped message
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// before considering a tracker to have timed out.
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// this is usually shorter, to make the client quit
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// faster
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int stop_tracker_timeout;
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// if the content-length is greater than this value
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// the tracker connection will be aborted
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int tracker_maximum_response_length;
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// the number of seconds from a request is sent until
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// it times out if no piece response is returned.
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int piece_timeout;
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// the length of the request queue given in the number
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// of seconds it should take for the other end to send
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// all the pieces. i.e. the actual number of requests
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// depends on the download rate and this number.
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float request_queue_time;
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// the number of outstanding block requests a peer is
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// allowed to queue up in the client. If a peer sends
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// more requests than this (before the first one has
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// been sent) the last request will be dropped.
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// the higher this is, the faster upload speeds the
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// client can get to a single peer.
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int max_allowed_in_request_queue;
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// the maximum number of outstanding requests to
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// send to a peer. This limit takes precedence over
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// request_queue_time.
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int max_out_request_queue;
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// if a whole piece can be downloaded in this number
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// of seconds, or less, the peer_connection will prefer
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// to request whole pieces at a time from this peer.
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// The benefit of this is to better utilize disk caches by
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// doing localized accesses and also to make it easier
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// to identify bad peers if a piece fails the hash check.
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int whole_pieces_threshold;
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// the number of seconds to wait for any activity on
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// the peer wire before closing the connectiong due
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// to time out.
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int peer_timeout;
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// same as peer_timeout, but only applies to url-seeds.
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// this is usually set lower, because web servers are
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// expected to be more reliable.
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int urlseed_timeout;
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// controls the pipelining size of url-seeds
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int urlseed_pipeline_size;
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// sets the upper limit on the total number of files this
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// session will keep open. The reason why files are
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// left open at all is that some anti virus software
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// hooks on every file close, and scans the file for
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// viruses. deferring the closing of the files will
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// be the difference between a usable system and
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// a completely hogged down system. Most operating
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// systems also has a limit on the total number of
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// file descriptors a process may have open. It is
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// usually a good idea to find this limit and set the
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// number of connections and the number of files
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// limits so their sum is slightly below it.
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int file_pool_size;
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// false to not allow multiple connections from the same
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// IP address. true will allow it.
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bool allow_multiple_connections_per_ip;
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// the number of times we can fail to connect to a peer
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// before we stop retrying it.
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int max_failcount;
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// the number of seconds to wait to reconnect to a peer.
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// this time is multiplied with the failcount.
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int min_reconnect_time;
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// this is the timeout for a connection attempt. If
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// the connect does not succeed within this time, the
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// connection is dropped. The time is specified in seconds.
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int peer_connect_timeout;
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// if set to true, upload, download and unchoke limits
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// are ignored for peers on the local network.
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bool ignore_limits_on_local_network;
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// the number of connection attempts that
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// are made per second.
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int connection_speed;
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// if this is set to true, have messages will be sent
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// to peers that already have the piece. This is
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// typically not necessary, but it might be necessary
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// for collecting statistics in some cases. Default is false.
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bool send_redundant_have;
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// if this is true, outgoing bitfields will never be fuil. If the
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// client is seed, a few bits will be set to 0, and later filled
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// in with have messages. This is to prevent certain ISPs
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// from stopping people from seeding.
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bool lazy_bitfields;
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// if a peer is uninteresting and uninterested for longer
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// than this number of seconds, it will be disconnected.
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// default is 10 minutes
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int inactivity_timeout;
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#ifndef TORRENT_DISABLE_DHT
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// while this is true, the dht will note be used unless the
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// tracker is online
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bool use_dht_as_fallback;
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#endif
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};
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#ifndef TORRENT_DISABLE_DHT
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struct dht_settings
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{
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dht_settings()
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: max_peers_reply(50)
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, search_branching(5)
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, service_port(0)
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, max_fail_count(20)
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{}
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// the maximum number of peers to send in a
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// reply to get_peers
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int max_peers_reply;
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// the number of simultanous "connections" when
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// searching the DHT.
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int search_branching;
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// the listen port for the dht. This is a UDP port.
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// zero means use the same as the tcp interface
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int service_port;
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// the maximum number of times a node can fail
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// in a row before it is removed from the table.
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int max_fail_count;
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};
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#endif
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#ifndef TORRENT_DISABLE_ENCRYPTION
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struct pe_settings
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{
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pe_settings()
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: out_enc_policy(enabled)
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, in_enc_policy(enabled)
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, allowed_enc_level(both)
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, prefer_rc4(false)
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{}
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enum enc_policy
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{
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forced, // disallow non encrypted connections
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enabled, // allow encrypted and non encrypted connections
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disabled // disallow encrypted connections
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};
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enum enc_level
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{
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plaintext, // use only plaintext encryption
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rc4, // use only rc4 encryption
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both // allow both
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};
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enc_policy out_enc_policy;
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enc_policy in_enc_policy;
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enc_level allowed_enc_level;
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// if the allowed encryption level is both, setting this to
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// true will prefer rc4 if both methods are offered, plaintext
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// otherwise
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bool prefer_rc4;
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};
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#endif
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}
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#endif
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