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core/s2smanager.lua @ 2081:b9bbb709d62e
net.dns: Be more strict about checking the DNS replies we receive
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 18 Nov 2009 01:05:38 +0000 |
parent | 2019:c712ea57b877 |
child | 2089:fdd7280c4621 |
rev | line source |
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Remove version number from copyright headers
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1 -- Prosody IM |
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Update copyright notices for 2009
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2 -- Copyright (C) 2008-2009 Matthew Wild |
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3 -- Copyright (C) 2008-2009 Waqas Hussain |
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4 -- |
758 | 5 -- This project is MIT/X11 licensed. Please see the |
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 |
148 | 10 |
11 local hosts = hosts; | |
12 local sessions = sessions; | |
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13 local core_process_stanza = function(a, b) core_process_stanza(a, b); end |
1204
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s2smanager: Timeout DNS requests after 60 seconds (or dns_timeout in config)
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14 local add_task = require "util.timer".add_task; |
148 | 15 local socket = require "socket"; |
16 local format = string.format; | |
337 | 17 local t_insert, t_sort = table.insert, table.sort; |
255
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18 local get_traceback = debug.traceback; |
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core.s2smanager: Remove some debugging
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19 local tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber |
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20 = tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber; |
148 | 21 |
434
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(Basic) IDNA and SRV fallback support
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22 local idna_to_ascii = require "util.encodings".idna.to_ascii; |
148 | 23 local connlisteners_get = require "net.connlisteners".get; |
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24 local wrapclient = require "net.server".wrapclient; |
148 | 25 local modulemanager = require "core.modulemanager"; |
244
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26 local st = require "stanza"; |
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27 local stanza = st.stanza; |
931
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Fixed: s2smanager: Apply nameprep on hostnames passed in stream tag (part of issue #57)
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28 local nameprep = require "util.encodings".stringprep.nameprep; |
148 | 29 |
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s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
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30 local fire_event = require "core.eventmanager".fire_event; |
148 | 31 local uuid_gen = require "util.uuid".generate; |
32 | |
33 local logger_init = require "util.logger".init; | |
34 | |
35 local log = logger_init("s2smanager"); | |
36 | |
448
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Switched from md5 to sha256 for dialback key generation
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37 local sha256_hash = require "util.hashes".sha256; |
148 | 38 |
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s2smanager: Use a UUID as the dialback secret
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39 local dialback_secret = uuid_gen(); |
148 | 40 |
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s2smanager: Compatibility with domains which use CNAMEs
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41 local adns, dns = require "net.adns", require "net.dns"; |
1962
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s2smanager: Fix access of 'config' global without requiring configmanager
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42 local config = require "core.configmanager"; |
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43 local connect_timeout = config.get("*", "core", "s2s_timeout") or 60; |
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44 local dns_timeout = config.get("*", "core", "dns_timeout") or 60; |
1805
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core.s2smanager: Don't recurse CNAMEs infinitely :)
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45 local max_dns_depth = config.get("*", "core", "dns_max_depth") or 3; |
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46 |
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47 incoming_s2s = {}; |
1976
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s2smanager: Add incoming_s2s to the prosody object
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48 _G.prosody.incoming_s2s = incoming_s2s; |
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49 local incoming_s2s = incoming_s2s; |
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50 |
148 | 51 module "s2smanager" |
52 | |
337 | 53 local function compare_srv_priorities(a,b) return a.priority < b.priority or a.weight < b.weight; end |
54 | |
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55 local function bounce_sendq(session) |
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56 local sendq = session.sendq; |
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57 if sendq then |
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s2smanager: Miscellaneous logging improvements, changing levels, improving messages and using session loggers where possible
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58 session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host)); |
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59 local dummy = { |
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60 type = "s2sin"; |
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61 send = function(s) |
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62 (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback()); |
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63 end; |
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64 dummy = true; |
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65 }; |
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66 for i, data in ipairs(sendq) do |
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67 local reply = data[2]; |
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68 local xmlns = reply.attr.xmlns; |
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69 if not xmlns or xmlns == "jabber:client" or xmlns == "jabber:server" then |
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70 reply.attr.type = "error"; |
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71 reply:tag("error", {type = "cancel"}) |
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72 :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
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73 core_process_stanza(dummy, reply); |
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74 end |
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75 sendq[i] = nil; |
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76 end |
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77 session.sendq = nil; |
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78 end |
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79 end |
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80 |
148 | 81 function send_to_host(from_host, to_host, data) |
260
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82 local host = hosts[from_host].s2sout[to_host]; |
190
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83 if host then |
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84 -- We have a connection to this host already |
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85 if host.type == "s2sout_unauthed" and data.name ~= "db:verify" and ((not data.xmlns) or data.xmlns == "jabber:client" or data.xmlns == "jabber:server") then |
558
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86 (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host); |
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core.s2smanager: Don't initiate dialback if we don't have a connection yet
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87 if not host.notopen and not host.dialback_key and host.sends2s then |
241
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88 host.log("debug", "dialback had not been initiated"); |
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89 initiate_dialback(host); |
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90 end |
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91 |
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92 -- Queue stanza until we are able to send it |
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93 if host.sendq then t_insert(host.sendq, {tostring(data), st.reply(data)}); |
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94 else host.sendq = { {tostring(data), st.reply(data)} }; end |
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95 host.log("debug", "stanza [%s] queued ", data.name); |
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96 elseif host.type == "local" or host.type == "component" then |
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97 log("error", "Trying to send a stanza to ourselves??") |
256 | 98 log("error", "Traceback: %s", get_traceback()); |
258
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99 log("error", "Stanza: %s", tostring(data)); |
190
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100 else |
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101 (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host); |
225
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102 -- FIXME |
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103 if host.from_host ~= from_host then |
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104 log("error", "WARNING! This might, possibly, be a bug, but it might not..."); |
331 | 105 log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host)); |
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106 end |
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107 host.sends2s(data); |
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108 host.log("debug", "stanza sent over "..host.type); |
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109 end |
148 | 110 else |
111 log("debug", "opening a new outgoing connection for this stanza"); | |
112 local host_session = new_outgoing(from_host, to_host); | |
113 -- Store in buffer | |
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114 host_session.sendq = { {tostring(data), st.reply(data)} }; |
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115 log("debug", "stanza [%s] queued until connection complete", tostring(data.name)); |
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116 if (not host_session.connecting) and (not host_session.conn) then |
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117 log("warn", "Connection to %s failed already, destroying session...", to_host); |
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118 destroy_session(host_session); |
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119 end |
148 | 120 end |
121 end | |
122 | |
123 local open_sessions = 0; | |
124 | |
125 function new_incoming(conn) | |
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126 local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} }; |
148 | 127 if true then |
128 session.trace = newproxy(true); | |
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129 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; |
148 | 130 end |
131 open_sessions = open_sessions + 1; | |
343 | 132 local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$")); |
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133 session.log = log; |
343 | 134 session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end |
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135 incoming_s2s[session] = true; |
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136 add_task(connect_timeout, function () |
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137 if session.conn ~= conn or |
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138 session.type == "s2sin" then |
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139 return; -- Ok, we're connect[ed|ing] |
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140 end |
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141 -- Not connected, need to close session and clean up |
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142 (session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
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143 session.from_host or "(unknown)", session.to_host or "(unknown)"); |
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144 session:close("connection-timeout"); |
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145 end); |
148 | 146 return session; |
147 end | |
148 | |
149 function new_outgoing(from_host, to_host) | |
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150 local host_session = { to_host = to_host, from_host = from_host, host = from_host, |
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151 notopen = true, type = "s2sout_unauthed", direction = "outgoing" }; |
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152 |
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153 hosts[from_host].s2sout[to_host] = host_session; |
148 | 154 |
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155 local log; |
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156 do |
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157 local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$"); |
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158 log = logger_init(conn_name); |
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159 host_session.log = log; |
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160 end |
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161 |
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162 -- This is the first call, can't fail (the first step is DNS lookup) |
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163 attempt_connection(host_session); |
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164 |
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165 if not host_session.sends2s then |
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166 -- A sends2s which buffers data (until the stream is opened) |
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167 -- note that data in this buffer will be sent before the stream is authed |
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168 -- and will not be ack'd in any way, successful or otherwise |
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169 local buffer; |
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170 function host_session.sends2s(data) |
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171 if not buffer then |
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172 buffer = {}; |
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173 host_session.send_buffer = buffer; |
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174 end |
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175 log("debug", "Buffering data on unconnected s2sout to %s", to_host); |
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176 buffer[#buffer+1] = data; |
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177 log("debug", "Buffered item %d: %s", #buffer, tostring(data)); |
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178 end |
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179 |
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180 end |
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181 |
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182 return host_session; |
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183 end |
353
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184 |
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185 |
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186 function attempt_connection(host_session, err) |
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187 local from_host, to_host = host_session.from_host, host_session.to_host; |
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188 local connect_host, connect_port = idna_to_ascii(to_host), 5269; |
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189 |
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190 if not err then -- This is our first attempt |
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191 log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host); |
974 | 192 host_session.connecting = true; |
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193 local handle; |
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194 handle = adns.lookup(function (answer) |
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195 handle = nil; |
974 | 196 host_session.connecting = nil; |
197 if answer then | |
198 log("debug", to_host.." has SRV records, handling..."); | |
199 local srv_hosts = {}; | |
200 host_session.srv_hosts = srv_hosts; | |
201 for _, record in ipairs(answer) do | |
202 t_insert(srv_hosts, record.srv); | |
203 end | |
204 t_sort(srv_hosts, compare_srv_priorities); | |
205 | |
206 local srv_choice = srv_hosts[1]; | |
207 host_session.srv_choice = 1; | |
208 if srv_choice then | |
209 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; | |
210 log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port); | |
211 end | |
212 else | |
213 log("debug", to_host.." has no SRV records, falling back to A"); | |
337 | 214 end |
974 | 215 -- Try with SRV, or just the plain hostname if no SRV |
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216 local ok, err = try_connect(host_session, connect_host, connect_port); |
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217 if not ok then |
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218 if not attempt_connection(host_session, err) then |
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219 -- No more attempts will be made |
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220 destroy_session(host_session); |
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221 end |
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222 end |
974 | 223 end, "_xmpp-server._tcp."..connect_host..".", "SRV"); |
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224 |
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225 -- Set handler for DNS timeout |
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226 add_task(dns_timeout, function () |
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227 if handle then |
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228 adns.cancel(handle, true); |
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229 end |
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230 end); |
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231 |
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232 log("debug", "DNS lookup for %s sent, waiting for response before we can connect", to_host); |
974 | 233 return true; -- Attempt in progress |
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234 elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV |
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235 host_session.srv_choice = host_session.srv_choice + 1; |
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236 local srv_choice = host_session.srv_hosts[host_session.srv_choice]; |
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237 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; |
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238 host_session.log("info", "Connection failed (%s). Attempt #%d: This time to %s:%d", tostring(err), host_session.srv_choice, connect_host, connect_port); |
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239 else |
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240 host_session.log("info", "Out of connection options, can't connect to %s", tostring(host_session.to_host)); |
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241 -- We're out of options |
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242 return false; |
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243 end |
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244 |
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245 if not (connect_host and connect_port) then |
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246 -- Likely we couldn't resolve DNS |
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247 log("warn", "Hmm, we're without a host (%s) and port (%s) to connect to for %s, giving up :(", tostring(connect_host), tostring(connect_port), tostring(to_host)); |
960
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248 return false; |
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249 end |
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250 |
974 | 251 return try_connect(host_session, connect_host, connect_port); |
252 end | |
253 | |
254 function try_connect(host_session, connect_host, connect_port) | |
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255 host_session.connecting = true; |
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256 local handle; |
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257 handle = adns.lookup(function (reply) |
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258 handle = nil; |
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259 host_session.connecting = nil; |
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260 |
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261 -- COMPAT: This is a compromise for all you CNAME-(ab)users :) |
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262 if not (reply and reply[#reply] and reply[#reply].a) then |
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263 local count = max_dns_depth; |
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264 reply = dns.peek(connect_host, "CNAME", "IN"); |
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265 while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do |
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266 log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count); |
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267 reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN"); |
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268 count = count - 1; |
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269 end |
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270 end |
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271 -- end of CNAME resolving |
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272 |
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273 if reply and reply[#reply] and reply[#reply].a then |
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274 log("debug", "DNS reply for %s gives us %s", connect_host, reply[#reply].a); |
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275 return make_connect(host_session, reply[#reply].a, connect_port); |
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276 else |
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277 log("debug", "DNS lookup failed to get a response for %s", connect_host); |
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278 if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can |
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279 log("debug", "No other records to try for %s - destroying", host_session.to_host); |
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280 destroy_session(host_session); -- End of the line, we can't |
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281 end |
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282 end |
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283 end, connect_host, "A", "IN"); |
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284 |
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285 -- Set handler for DNS timeout |
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286 add_task(dns_timeout, function () |
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287 if handle then |
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288 adns.cancel(handle, true); |
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289 end |
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290 end); |
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291 |
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292 return true; |
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293 end |
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294 |
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295 function make_connect(host_session, connect_host, connect_port) |
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296 host_session.log("info", "Beginning new connection attempt to %s (%s:%d)", host_session.to_host, connect_host, connect_port); |
434
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297 -- Ok, we're going to try to connect |
974 | 298 |
299 local from_host, to_host = host_session.from_host, host_session.to_host; | |
300 | |
301 local conn, handler = socket.tcp() | |
302 | |
434
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303 conn:settimeout(0); |
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304 local success, err = conn:connect(connect_host, connect_port); |
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305 if not success and err ~= "timeout" then |
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306 log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host, connect_port, err); |
1492
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307 return false, err; |
434
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308 end |
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309 |
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310 local cl = connlisteners_get("xmppserver"); |
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311 conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1, hosts[from_host].ssl_ctx, false ); |
434
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312 host_session.conn = conn; |
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313 |
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314 -- Register this outgoing connection so that xmppserver_listener knows about it |
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315 -- otherwise it will assume it is a new incoming connection |
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316 cl.register_outgoing(conn, host_session); |
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317 |
2019
c712ea57b877
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318 local w, log = conn.write, host_session.log; |
434
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319 host_session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end |
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320 |
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321 conn.write(format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0' xml:lang='en'>]], from_host, to_host)); |
974 | 322 log("debug", "Connection attempt in progress..."); |
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323 add_task(connect_timeout, function () |
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324 if host_session.conn ~= conn or |
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325 host_session.type == "s2sout" or |
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326 host_session.connecting then |
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327 return; -- Ok, we're connect[ed|ing] |
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328 end |
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329 -- Not connected, need to close session and clean up |
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330 (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
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331 host_session.from_host or "(unknown)", host_session.to_host or "(unknown)"); |
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332 host_session:close("connection-timeout"); |
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333 end); |
434
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334 return true; |
148 | 335 end |
336 | |
337 function streamopened(session, attr) | |
186
bfa8a30ea488
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diff
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|
338 local send = session.sends2s; |
148 | 339 |
544
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340 -- TODO: #29: SASL/TLS on s2s streams |
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341 session.version = tonumber(attr.version) or 0; |
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342 |
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|
343 if session.secure == false then |
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344 session.secure = true; |
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345 end |
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diff
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|
346 |
148 | 347 if session.version >= 1.0 and not (attr.to and attr.from) then |
1928
d11f07ca0b75
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diff
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|
348 |
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|
349 (session.log or log)("warn", "Remote of stream "..(session.from_host or "(unknown)").."->"..(session.to_host or "(unknown)") |
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diff
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|
350 .." failed to specify to (%s) and/or from (%s) hostname as per RFC", tostring(attr.to), tostring(attr.from)); |
148 | 351 end |
352 | |
353 if session.direction == "incoming" then | |
354 -- Send a reply stream header | |
938
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Fixed: Some nil access bugs
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diff
changeset
|
355 session.to_host = attr.to and nameprep(attr.to); |
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Fixed: Some nil access bugs
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diff
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|
356 session.from_host = attr.from and nameprep(attr.from); |
148 | 357 |
358 session.streamid = uuid_gen(); | |
360
e918c979ad1a
Remove or comment useless prints, or change them to log()
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parents:
354
diff
changeset
|
359 (session.log or log)("debug", "incoming s2s received <stream:stream>"); |
148 | 360 send("<?xml version='1.0'?>"); |
852
3c2d99ba1dc2
core.s2smanager: Remove some old commented code, break a long line in 2
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diff
changeset
|
361 send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', |
1930
92b78dd346ca
s2smanager: Don't send version=1.0 in reply to incoming stream tag if they didn't advertise 1.0 (makes happy some old ejabberd versions)
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parents:
1928
diff
changeset
|
362 ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, version=(session.version > 0 and "1.0" or nil) }):top_tag()); |
331 | 363 if session.to_host and not hosts[session.to_host] then |
364 -- Attempting to connect to a host we don't serve | |
434
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diff
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|
365 session:close({ condition = "host-unknown"; text = "This host does not serve "..session.to_host }); |
331 | 366 return; |
367 end | |
345
6a7acfc1c933
Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
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344
diff
changeset
|
368 if session.version >= 1.0 then |
1889
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diff
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|
369 local features = st.stanza("stream:features"); |
1936
a6ca0dcc7b83
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diff
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|
370 |
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diff
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|
371 if session.to_host then |
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diff
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|
372 hosts[session.to_host].events.fire_event("s2s-stream-features", { session = session, features = features }); |
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diff
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|
373 else |
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diff
changeset
|
374 (session.log or log)("warn", "No 'to' on stream header from %s means we can't offer any features", session.from_host or "unknown host"); |
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diff
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|
375 end |
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|
376 |
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diff
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|
377 log("debug", "Sending stream features: %s", tostring(features)); |
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diff
changeset
|
378 send(features); |
345
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Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
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344
diff
changeset
|
379 end |
148 | 380 elseif session.direction == "outgoing" then |
381 -- If we are just using the connection for verifying dialback keys, we won't try and auth it | |
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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186
diff
changeset
|
382 if not attr.id then error("stream response did not give us a streamid!!!"); end |
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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186
diff
changeset
|
383 session.streamid = attr.id; |
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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186
diff
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|
384 |
1007
c500d4cb7855
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1006
diff
changeset
|
385 -- Send unauthed buffer |
c500d4cb7855
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diff
changeset
|
386 -- (stanzas which are fine to send before dialback) |
c500d4cb7855
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1006
diff
changeset
|
387 -- Note that this is *not* the stanza queue (which |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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parents:
1006
diff
changeset
|
388 -- we can only send if auth succeeds) :) |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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parents:
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diff
changeset
|
389 local send_buffer = session.send_buffer; |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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diff
changeset
|
390 if send_buffer and #send_buffer > 0 then |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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diff
changeset
|
391 log("debug", "Sending s2s send_buffer now..."); |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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diff
changeset
|
392 for i, data in ipairs(send_buffer) do |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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diff
changeset
|
393 session.sends2s(tostring(data)); |
c500d4cb7855
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diff
changeset
|
394 send_buffer[i] = nil; |
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diff
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|
395 end |
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diff
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|
396 end |
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diff
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|
397 session.send_buffer = nil; |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
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diff
changeset
|
398 |
1890
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
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parents:
1889
diff
changeset
|
399 -- If server is pre-1.0, don't wait for features, just do dialback |
aed0d8a0cca8
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1889
diff
changeset
|
400 if session.version < 1.0 then |
aed0d8a0cca8
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1889
diff
changeset
|
401 if not session.dialback_verifying then |
1894
53f34ba6f6d6
Minor changes; outgoing TLS works.
Paul Aurich <paul@darkrain42.org>
parents:
1891
diff
changeset
|
402 log("debug", "Initiating dialback..."); |
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403 initiate_dialback(session); |
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404 else |
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405 mark_connected(session); |
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406 end |
148 | 407 end |
408 end | |
259 | 409 |
148 | 410 session.notopen = nil; |
411 end | |
412 | |
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413 function streamclosed(session) |
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414 (session.log or log)("debug", "</stream:stream>"); |
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415 if session.sends2s then |
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416 session.sends2s("</stream:stream>"); |
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417 end |
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418 session.notopen = true; |
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419 end |
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420 |
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421 function initiate_dialback(session) |
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422 -- generate dialback key |
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423 session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host); |
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424 session.sends2s(format("<db:result from='%s' to='%s'>%s</db:result>", session.from_host, session.to_host, session.dialback_key)); |
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425 session.log("info", "sent dialback key on outgoing s2s stream"); |
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426 end |
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427 |
148 | 428 function generate_dialback(id, to, from) |
448
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429 return sha256_hash(id..to..from..dialback_secret, true); |
148 | 430 end |
431 | |
432 function verify_dialback(id, to, from, key) | |
433 return key == generate_dialback(id, to, from); | |
434 end | |
435 | |
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436 function make_authenticated(session, host) |
148 | 437 if session.type == "s2sout_unauthed" then |
438 session.type = "s2sout"; | |
439 elseif session.type == "s2sin_unauthed" then | |
440 session.type = "s2sin"; | |
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441 if host then |
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442 session.hosts[host].authed = true; |
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443 end |
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444 elseif session.type == "s2sin" and host then |
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445 session.hosts[host].authed = true; |
148 | 446 else |
447 return false; | |
448 end | |
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449 session.log("debug", "connection %s->%s is now authenticated", session.from_host or "(unknown)", session.to_host or "(unknown)"); |
148 | 450 |
451 mark_connected(session); | |
452 | |
453 return true; | |
454 end | |
455 | |
1891 | 456 -- Stream is authorised, and ready for normal stanzas |
148 | 457 function mark_connected(session) |
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458 local sendq, send = session.sendq, session.sends2s; |
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459 |
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460 local from, to = session.from_host, session.to_host; |
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461 |
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462 session.log("info", session.direction.." s2s connection "..from.."->"..to.." complete"); |
186
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463 |
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464 local send_to_host = send_to_host; |
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465 function session.send(data) send_to_host(to, from, data); end |
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466 |
186
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467 |
190
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468 if session.direction == "outgoing" then |
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469 if sendq then |
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470 session.log("debug", "sending "..#sendq.." queued stanzas across new outgoing connection to "..session.to_host); |
190
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471 for i, data in ipairs(sendq) do |
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472 send(data[1]); |
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473 sendq[i] = nil; |
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474 end |
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475 session.sendq = nil; |
148 | 476 end |
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477 |
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478 session.srv_hosts = nil; |
148 | 479 end |
480 end | |
481 | |
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482 function destroy_session(session) |
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483 (session.log or log)("info", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host)); |
331 | 484 |
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485 if session.direction == "outgoing" then |
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486 hosts[session.from_host].s2sout[session.to_host] = nil; |
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487 bounce_sendq(session); |
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488 elseif session.direction == "incoming" then |
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489 incoming_s2s[session] = nil; |
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490 end |
331 | 491 |
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492 for k in pairs(session) do |
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493 if k ~= "trace" then |
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494 session[k] = nil; |
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495 end |
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496 end |
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497 end |
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498 |
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499 return _M; |