Software / code / prosody
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net/xmppserver_listener.lua @ 584:eb0cea29c8d7
Temporary hack for global modules
| author | Matthew Wild <mwild1@gmail.com> |
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| date | Sat, 06 Dec 2008 23:15:48 +0000 |
| parent | 557:c9b3ffb08fe3 |
| child | 585:033817e12ddb |
| rev | line source |
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1 -- Prosody IM v0.1 |
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2 -- Copyright (C) 2008 Matthew Wild |
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3 -- Copyright (C) 2008 Waqas Hussain |
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4 -- |
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5 -- This program is free software; you can redistribute it and/or |
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6 -- modify it under the terms of the GNU General Public License |
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7 -- as published by the Free Software Foundation; either version 2 |
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8 -- of the License, or (at your option) any later version. |
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9 -- |
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10 -- This program is distributed in the hope that it will be useful, |
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11 -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 -- GNU General Public License for more details. |
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14 -- |
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15 -- You should have received a copy of the GNU General Public License |
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16 -- along with this program; if not, write to the Free Software |
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17 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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18 -- |
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19 |
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20 |
| 148 | 21 |
| 22 local logger = require "logger"; | |
| 23 local lxp = require "lxp" | |
| 24 local init_xmlhandlers = require "core.xmlhandlers" | |
| 25 local sm_new_session = require "core.sessionmanager".new_session; | |
| 26 local s2s_new_incoming = require "core.s2smanager".new_incoming; | |
| 27 local s2s_streamopened = require "core.s2smanager".streamopened; | |
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28 local s2s_streamclosed = require "core.s2smanager".streamclosed; |
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29 local s2s_destroy_session = require "core.s2smanager".destroy_session; |
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30 local s2s_attempt_connect = require "core.s2smanager".attempt_connection; |
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31 local stream_callbacks = { ns = "http://etherx.jabber.org/streams", streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; |
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32 |
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33 function stream_callbacks.error(session, error, data) |
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34 if error == "no-stream" then |
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35 session:close("invalid-namespace"); |
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36 else |
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37 session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); |
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38 session:close("xml-not-well-formed"); |
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39 end |
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40 end |
| 331 | 41 |
| 148 | 42 local connlisteners_register = require "net.connlisteners".register; |
| 43 | |
| 44 local t_insert = table.insert; | |
| 45 local t_concat = table.concat; | |
| 46 local t_concatall = function (t, sep) local tt = {}; for _, s in ipairs(t) do t_insert(tt, tostring(s)); end return t_concat(tt, sep); end | |
| 47 local m_random = math.random; | |
| 48 local format = string.format; | |
| 49 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); | |
| 50 local st = stanza; | |
| 51 | |
| 52 local sessions = {}; | |
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53 local xmppserver = { default_port = 5269, default_mode = "*a" }; |
| 148 | 54 |
| 55 -- These are session methods -- | |
| 56 | |
| 57 local function session_reset_stream(session) | |
| 58 -- Reset stream | |
| 331 | 59 local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
| 148 | 60 session.parser = parser; |
| 61 | |
| 62 session.notopen = true; | |
| 63 | |
| 64 function session.data(conn, data) | |
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65 local ok, err = parser:parse(data); |
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66 if ok then return; end |
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67 session:close("xml-not-well-formed"); |
| 148 | 68 end |
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69 |
| 148 | 70 return true; |
| 71 end | |
| 72 | |
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73 |
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74 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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75 local function session_close(session, reason) |
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76 local log = session.log or log; |
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77 if session.conn then |
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78 if reason then |
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79 if type(reason) == "string" then -- assume stream error |
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80 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
| 331 | 81 session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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82 elseif type(reason) == "table" then |
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83 if reason.condition then |
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84 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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85 if reason.text then |
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86 stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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87 end |
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88 if reason.extra then |
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89 stanza:add_child(reason.extra); |
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90 end |
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91 log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
| 331 | 92 session.sends2s(stanza); |
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93 elseif reason.name then -- a stanza |
| 331 | 94 log("info", "Disconnecting %s->%s[%s], <stream:error> is: %s", session.from_host or "(unknown host)", session.to_host or "(unknown host)", session.type, tostring(reason)); |
| 95 session.sends2s(reason); | |
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96 end |
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97 end |
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98 end |
| 331 | 99 session.sends2s("</stream:stream>"); |
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100 session.conn.close(); |
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101 xmppserver.disconnect(session.conn, "stream error"); |
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102 end |
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103 end |
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104 |
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105 |
| 148 | 106 -- End of session methods -- |
| 107 | |
| 108 function xmppserver.listener(conn, data) | |
| 109 local session = sessions[conn]; | |
| 110 if not session then | |
| 111 session = s2s_new_incoming(conn); | |
| 112 sessions[conn] = session; | |
| 113 | |
| 114 -- Logging functions -- | |
| 115 | |
| 116 local mainlog, log = log; | |
| 117 do | |
| 118 local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); | |
| 119 log = logger.init(conn_name); | |
| 120 end | |
| 121 local print = function (...) log("info", t_concatall({...}, "\t")); end | |
| 122 session.log = log; | |
| 123 | |
| 124 print("Incoming s2s connection"); | |
| 125 | |
| 126 session.reset_stream = session_reset_stream; | |
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127 session.close = session_close; |
| 148 | 128 |
| 129 session_reset_stream(session); -- Initialise, ready for use | |
| 130 | |
| 131 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
| 132 -- this will avoid the useless indirection we have atm | |
| 133 -- (I'm on a mission, no time to fix now) | |
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134 |
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135 -- Debug version -- |
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136 -- local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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137 -- session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 138 end |
| 139 if data then | |
| 140 session.data(conn, data); | |
| 141 end | |
| 142 end | |
| 143 | |
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144 function xmppserver.disconnect(conn, err) |
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145 local session = sessions[conn]; |
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146 if session then |
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147 if err and err ~= "closed" and session.srv_hosts then |
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148 if s2s_attempt_connect(session, err) then |
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149 return; -- Session lives for now |
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150 end |
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151 end |
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152 (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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153 s2s_destroy_session(session); |
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154 sessions[conn] = nil; |
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155 session = nil; |
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156 collectgarbage("collect"); |
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157 end |
| 148 | 158 end |
| 159 | |
| 160 function xmppserver.register_outgoing(conn, session) | |
| 161 session.direction = "outgoing"; | |
| 162 sessions[conn] = session; | |
| 163 | |
| 164 session.reset_stream = session_reset_stream; | |
| 165 session_reset_stream(session); -- Initialise, ready for use | |
| 166 | |
| 167 -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, | |
| 168 -- this will avoid the useless indirection we have atm | |
| 169 -- (I'm on a mission, no time to fix now) | |
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170 local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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171 session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
| 148 | 172 end |
| 173 | |
| 174 connlisteners_register("xmppserver", xmppserver); | |
| 175 | |
| 176 | |
| 177 -- We need to perform some initialisation when a connection is created | |
| 178 -- We also need to perform that same initialisation at other points (SASL, TLS, ...) | |
| 179 | |
| 180 -- ...and we need to handle data | |
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181 -- ...and record all sessions associated with connections |
