prosody
e2ee6aa50b6c
core/s2smanager.lua

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core/s2smanager.lua @ 4559:e2ee6aa50b6c

mod_s2s: Fix typo
author Kim Alvefur <zash@zash.se>
date Wed, 22 Feb 2012 23:14:21 +0100
parent 4555:3dce04129693
child 4566:afd09bfa0884
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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841d61be198f Remove version number from copyright headers
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1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
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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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cccd610a0ef9 Insert copyright/license headers
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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 = hosts;
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6957fe7b0313 Bounce stanza errors on failed s2s
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12 local core_process_stanza = function(a, b) core_process_stanza(a, b); end
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13 local format = string.format;
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14 local t_insert, t_sort = table.insert, table.sort;
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15 local get_traceback = debug.traceback;
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16 local tostring, pairs, ipairs, getmetatable, newproxy, type, error, tonumber, setmetatable
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17 = tostring, pairs, ipairs, getmetatable, newproxy, type, error, tonumber, setmetatable;
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18
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19 local initialize_filters = require "util.filters".initialize;
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20 local wrapclient = require "net.server".wrapclient;
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21 local st = require "stanza";
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22 local stanza = st.stanza;
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4514ed5ee943 Fixed: s2smanager: Apply nameprep on hostnames passed in stream tag (part of issue #57)
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23 local nameprep = require "util.encodings".stringprep.nameprep;
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26571a99f6e6 core.s2smanager, mod_console, mod_saslauth, util.certverification: rename util.certverification to util.x509
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24 local cert_verify_identity = require "util.x509".verify_identity;
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25 local new_ip = require "util.ip".new_ip;
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26 local rfc3484_dest = require "util.rfc3484".destination;
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27
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28 local fire_event = prosody.events.fire_event;
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29 local uuid_gen = require "util.uuid".generate;
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30
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31 local logger_init = require "util.logger".init;
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32
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33 local log = logger_init("s2smanager");
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34
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35 local sha256_hash = require "util.hashes".sha256;
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36
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37 local adns, dns = require "net.adns", require "net.dns";
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38 local config = require "core.configmanager";
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39 local dns_timeout = config.get("*", "core", "dns_timeout") or 15;
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40 local max_dns_depth = config.get("*", "core", "dns_max_depth") or 3;
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41 local cfg_sources = config.get("*", "core", "s2s_interface")
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42 or config.get("*", "core", "interface");
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43 local sources;
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44
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45 --FIXME: s2sout should create its own resolver w/ timeout
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46 dns.settimeout(dns_timeout);
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47
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48 local prosody = _G.prosody;
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49 incoming_s2s = {};
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50 prosody.incoming_s2s = incoming_s2s;
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51 local incoming_s2s = incoming_s2s;
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52
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53 module "s2smanager"
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54
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55 local open_sessions = 0;
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56
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57 function new_incoming(conn)
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58 local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} };
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59 if true then
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60 session.trace = newproxy(true);
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61 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end;
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62 end
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63 open_sessions = open_sessions + 1;
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64 session.log = logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$"));
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65 incoming_s2s[session] = true;
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66 return session;
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67 end
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68
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69 function new_outgoing(from_host, to_host, connect)
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70 local host_session = { to_host = to_host, from_host = from_host, host = from_host,
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71 notopen = true, type = "s2sout_unauthed", direction = "outgoing" };
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72 hosts[from_host].s2sout[to_host] = host_session;
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73 local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$");
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74 host_session.log = logger_init(conn_name);
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75 return host_session;
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76 end
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77
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78 function make_authenticated(session, host)
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79 if not session.secure then
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80 local local_host = session.direction == "incoming" and session.to_host or session.from_host;
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81 if config.get(local_host, "core", "s2s_require_encryption") then
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82 session:close({
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83 condition = "policy-violation",
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84 text = "Encrypted server-to-server communication is required but was not "
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85 ..((session.direction == "outgoing" and "offered") or "used")
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86 });
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87 end
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88 end
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89 if session.type == "s2sout_unauthed" then
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90 session.type = "s2sout";
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91 elseif session.type == "s2sin_unauthed" then
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92 session.type = "s2sin";
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93 if host then
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94 if not session.hosts[host] then session.hosts[host] = {}; end
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95 session.hosts[host].authed = true;
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96 end
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97 elseif session.type == "s2sin" and host then
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98 if not session.hosts[host] then session.hosts[host] = {}; end
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99 session.hosts[host].authed = true;
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100 else
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101 return false;
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102 end
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103 session.log("debug", "connection %s->%s is now authenticated", session.from_host or "(unknown)", session.to_host or "(unknown)");
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104
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105 mark_connected(session);
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106
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107 return true;
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108 end
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109
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110 -- Stream is authorised, and ready for normal stanzas
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111 function mark_connected(session)
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112 local sendq, send = session.sendq, session.sends2s;
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114 local from, to = session.from_host, session.to_host;
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115
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116 session.log("info", session.direction.." s2s connection "..from.."->"..to.." complete");
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117
bfa8a30ea488 sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
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118 local send_to_host = send_to_host;
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2cb5bb26b831 s2smanager: session.send(): Return the result of send_to_host() (and incidentally make this a tail call \o/)
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119 function session.send(data) return send_to_host(to, from, data); end
190
1e993b7deae7 General fixes for s2s, to make it more robust (I hope), sending data to remote hosts sane (s2ssession.send() works as expected), recycle outgoing dialback connections, etc.
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diff changeset
120
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121 local event_data = { session = session };
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122 if session.type == "s2sout" then
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123 prosody.events.fire_event("s2sout-established", event_data);
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124 hosts[session.from_host].events.fire_event("s2sout-established", event_data);
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125 else
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126 prosody.events.fire_event("s2sin-established", event_data);
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127 hosts[session.to_host].events.fire_event("s2sin-established", event_data);
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128 end
186
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129
190
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130 if session.direction == "outgoing" then
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diff changeset
131 if sendq then
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3cfac0e5e6ca Log how many queued stanzas we send
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132 session.log("debug", "sending "..#sendq.." queued stanzas across new outgoing connection to "..session.to_host);
190
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133 for i, data in ipairs(sendq) do
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6957fe7b0313 Bounce stanza errors on failed s2s
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parents: 621
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134 send(data[1]);
190
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135 sendq[i] = nil;
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parents: 186
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136 end
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137 session.sendq = nil;
148
4c0dcd245d34 s2s works! \o/ \o/
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parents:
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138 end
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35b5686d73ea s2smanager: Remove srv_hosts from session when connected, this fixes attempting to reconnect s2s sessions when they are closed during shutdown
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139
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diff changeset
140 session.srv_hosts = nil;
148
4c0dcd245d34 s2s works! \o/ \o/
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141 end
4c0dcd245d34 s2s works! \o/ \o/
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parents:
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142 end
4c0dcd245d34 s2s works! \o/ \o/
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parents:
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143
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144 local resting_session = { -- Resting, not dead
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145 destroyed = true;
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f47bd0f7e2e6 sessionmanager, s2smanager: Add type of ?2s_destroyed to resting sessions (fixes a logging traceback, thanks Flo)
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146 type = "s2s_destroyed";
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85a242cd1bc4 s2smanager: Add open_stream and close methods to resting sessions
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147 open_stream = function (session)
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148 session.log("debug", "Attempt to open stream on resting session");
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149 end;
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150 close = function (session)
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151 session.log("debug", "Attempt to close already-closed session");
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152 end;
3459
543f31cdde19 sessionmanager, s2smanager: Give resting sessions a pass-through filter, fixes #202
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diff changeset
153 filter = function (type, data) return data; end;
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154 }; resting_session.__index = resting_session;
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155
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diff changeset
156 function retire_session(session, reason)
2746
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157 local log = session.log or log;
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diff changeset
158 for k in pairs(session) do
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diff changeset
159 if k ~= "trace" and k ~= "log" and k ~= "id" then
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diff changeset
160 session[k] = nil;
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161 end
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162 end
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163
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diff changeset
164 session.destruction_reason = reason;
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diff changeset
165
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diff changeset
166 function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); end
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diff changeset
167 function session.data(data) log("debug", "Discarding data received from resting session: %s", tostring(data)); end
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diff changeset
168 return setmetatable(session, resting_session);
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diff changeset
169 end
2857
6036c4b75235 sessionmanager, s2smanager: Give sessions dummy data handlers that log when data is received by a destroyed session
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parents: 2712
diff changeset
170
2781
4b5881b6bbfc s2smanager: Have both destroy_session and bounce_sendq accept a reason string to include in bounced stanzas
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parents: 2780
diff changeset
171 function destroy_session(session, reason)
2749
8dc5f3651501 s2smanager: Don't re-destroy destroyed sessions
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parents: 2748
diff changeset
172 if session.destroyed then return; end
4262
fd4d1cf6d63e s2smanager: Log reason when destroying a session.
Waqas Hussain <waqas20@gmail.com>
parents: 4200
diff changeset
173 (session.log or log)("debug", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host)..(reason and (": "..reason) or ""));
331
830fd67f9378 Quite some changes, to:
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parents: 327
diff changeset
174
164
8dc1faa5b1df other half of previous commit
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parents: 162
diff changeset
175 if session.direction == "outgoing" then
260
182f0c895676 Now outgoing s2s sessions are associated with their from_host, fixes #15
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parents: 259
diff changeset
176 hosts[session.from_host].s2sout[session.to_host] = nil;
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents: 4461
diff changeset
177 session:bounce_sendq(reason);
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cd2cab5400fc Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
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parents: 615
diff changeset
178 elseif session.direction == "incoming" then
cd2cab5400fc Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
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parents: 615
diff changeset
179 incoming_s2s[session] = nil;
164
8dc1faa5b1df other half of previous commit
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parents: 162
diff changeset
180 end
331
830fd67f9378 Quite some changes, to:
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parents: 327
diff changeset
181
3488
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diff changeset
182 local event_data = { session = session, reason = reason };
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diff changeset
183 if session.type == "s2sout" then
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parents: 3476
diff changeset
184 prosody.events.fire_event("s2sout-destroyed", event_data);
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parents: 3476
diff changeset
185 if hosts[session.from_host] then
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parents: 3476
diff changeset
186 hosts[session.from_host].events.fire_event("s2sout-destroyed", event_data);
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parents: 3476
diff changeset
187 end
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1b76d18e8045 s2smanager: Don't fire s2sin-destroyed for sessions that were never fully established (thanks Thomas)
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parents: 3488
diff changeset
188 elseif session.type == "s2sin" then
3488
4f3fc5f9d944 s2smanager: Fire s2s{in,out}-destroyed when s2s connections are destroyed
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parents: 3476
diff changeset
189 prosody.events.fire_event("s2sin-destroyed", event_data);
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parents: 3476
diff changeset
190 if hosts[session.to_host] then
4f3fc5f9d944 s2smanager: Fire s2s{in,out}-destroyed when s2s connections are destroyed
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parents: 3476
diff changeset
191 hosts[session.to_host].events.fire_event("s2sin-destroyed", event_data);
4f3fc5f9d944 s2smanager: Fire s2s{in,out}-destroyed when s2s connections are destroyed
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parents: 3476
diff changeset
192 end
4f3fc5f9d944 s2smanager: Fire s2s{in,out}-destroyed when s2s connections are destroyed
Matthew Wild <mwild1@gmail.com>
parents: 3476
diff changeset
193 end
4f3fc5f9d944 s2smanager: Fire s2s{in,out}-destroyed when s2s connections are destroyed
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parents: 3476
diff changeset
194
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80aa47c009f0 s2smanager: destroy_session(): Pass reason to retire_session() and return true on successful destruction
Matthew Wild <mwild1@gmail.com>
parents: 4018
diff changeset
195 retire_session(session, reason); -- Clean session until it is GC'd
80aa47c009f0 s2smanager: destroy_session(): Pass reason to retire_session() and return true on successful destruction
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parents: 4018
diff changeset
196 return true;
164
8dc1faa5b1df other half of previous commit
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parents: 162
diff changeset
197 end
8dc1faa5b1df other half of previous commit
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parents: 162
diff changeset
198
225
bbbd169b326b Just committing this warning, because I want to know if the problem really affects us
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parents: 199
diff changeset
199 return _M;