prosody
9dd36e20c1e3
core/s2smanager.lua

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core/s2smanager.lua @ 5434:9dd36e20c1e3

moduleapi: assert() that prosody.core_post_stanza is not nil
author Matthew Wild <mwild1@gmail.com>
date Fri, 05 Apr 2013 19:13:46 +0100
parent 5367:56db8f2c8563
child 5447:92b88476873a
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rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10
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11 local hosts = prosody.hosts;
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12 local tostring, pairs, getmetatable, newproxy, setmetatable
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13 = tostring, pairs, getmetatable, newproxy, setmetatable;
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14
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15 local logger_init = require "util.logger".init;
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16
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17 local log = logger_init("s2smanager");
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18
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19 local prosody = _G.prosody;
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20 incoming_s2s = {};
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21 prosody.incoming_s2s = incoming_s2s;
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22 local incoming_s2s = incoming_s2s;
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23 local fire_event = prosody.events.fire_event;
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24
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25 module "s2smanager"
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26
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27 local open_sessions = 0;
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28
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29 function new_incoming(conn)
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30 local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} };
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31 if true then
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32 session.trace = newproxy(true);
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33 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end;
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34 end
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35 open_sessions = open_sessions + 1;
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36 session.log = logger_init("s2sin"..tostring(session):match("[a-f0-9]+$"));
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37 incoming_s2s[session] = true;
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38 return session;
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39 end
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40
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41 function new_outgoing(from_host, to_host)
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42 local host_session = { to_host = to_host, from_host = from_host, host = from_host,
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43 notopen = true, type = "s2sout_unauthed", direction = "outgoing" };
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44 hosts[from_host].s2sout[to_host] = host_session;
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45 local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$");
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46 host_session.log = logger_init(conn_name);
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47 return host_session;
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48 end
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49
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50 local resting_session = { -- Resting, not dead
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51 destroyed = true;
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52 type = "s2s_destroyed";
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53 open_stream = function (session)
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54 session.log("debug", "Attempt to open stream on resting session");
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55 end;
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56 close = function (session)
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57 session.log("debug", "Attempt to close already-closed session");
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58 end;
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59 filter = function (type, data) return data; end;
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60 }; resting_session.__index = resting_session;
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61
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62 function retire_session(session, reason)
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63 local log = session.log or log;
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64 for k in pairs(session) do
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65 if k ~= "trace" and k ~= "log" and k ~= "id" and k ~= "conn" then
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66 session[k] = nil;
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67 end
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68 end
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69
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70 session.destruction_reason = reason;
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71
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72 function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); end
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73 function session.data(data) log("debug", "Discarding data received from resting session: %s", tostring(data)); end
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74 return setmetatable(session, resting_session);
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75 end
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76
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77 function destroy_session(session, reason)
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78 if session.destroyed then return; end
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79 (session.log or log)("debug", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host)..(reason and (": "..reason) or ""));
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80
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81 if session.direction == "outgoing" then
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82 hosts[session.from_host].s2sout[session.to_host] = nil;
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83 session:bounce_sendq(reason);
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84 elseif session.direction == "incoming" then
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85 incoming_s2s[session] = nil;
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86 end
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87
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88 local event_data = { session = session, reason = reason };
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89 if session.type == "s2sout" then
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90 fire_event("s2sout-destroyed", event_data);
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91 if hosts[session.from_host] then
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92 hosts[session.from_host].events.fire_event("s2sout-destroyed", event_data);
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93 end
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94 elseif session.type == "s2sin" then
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95 fire_event("s2sin-destroyed", event_data);
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96 if hosts[session.to_host] then
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97 hosts[session.to_host].events.fire_event("s2sin-destroyed", event_data);
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98 end
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99 end
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100
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101 retire_session(session, reason); -- Clean session until it is GC'd
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102 return true;
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103 end
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104
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105 return _M;