author | Matthew Wild <mwild1@gmail.com> |
Fri, 10 Jul 2009 03:11:45 +0100 | |
changeset 1523 | 841d61be198f |
parent 1040 | 4c79b28bce64 |
child 1605 | f6bd13fe1cb1 |
child 1617 | c6e175a0d83b |
permissions | -rw-r--r-- |
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-- Prosody IM |
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-- Copyright (C) 2008-2009 Matthew Wild |
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-- Copyright (C) 2008-2009 Waqas Hussain |
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-- |
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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-- |
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148 | 10 |
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11 |
local logger = require "logger"; |
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local log = logger.init("xmppserver_listener"); |
148 | 13 |
local lxp = require "lxp" |
14 |
local init_xmlhandlers = require "core.xmlhandlers" |
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15 |
local s2s_new_incoming = require "core.s2smanager".new_incoming; |
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16 |
local s2s_streamopened = require "core.s2smanager".streamopened; |
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local s2s_streamclosed = require "core.s2smanager".streamclosed; |
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local s2s_destroy_session = require "core.s2smanager".destroy_session; |
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local s2s_attempt_connect = require "core.s2smanager".attempt_connection; |
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local stream_callbacks = { stream_tag = "http://etherx.jabber.org/streams|stream", |
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default_ns = "jabber:server", |
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streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; |
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function stream_callbacks.error(session, error, data) |
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if error == "no-stream" then |
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session:close("invalid-namespace"); |
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else |
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session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); |
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session:close("xml-not-well-formed"); |
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30 |
end |
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31 |
end |
331 | 32 |
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local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), debug.traceback()); end |
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function stream_callbacks.handlestanza(a, b) |
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xpcall(function () core_process_stanza(a, b) end, handleerr); |
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end |
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148 | 38 |
local connlisteners_register = require "net.connlisteners".register; |
39 |
||
40 |
local t_insert = table.insert; |
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41 |
local t_concat = table.concat; |
|
42 |
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 |
|
43 |
local m_random = math.random; |
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44 |
local format = string.format; |
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local sessionmanager = require "core.sessionmanager"; |
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local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; |
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local st = require "util.stanza"; |
148 | 48 |
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49 |
local sessions = {}; |
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local xmppserver = { default_port = 5269, default_mode = "*a" }; |
148 | 51 |
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52 |
-- These are session methods -- |
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53 |
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54 |
local function session_reset_stream(session) |
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55 |
-- Reset stream |
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331 | 56 |
local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
148 | 57 |
session.parser = parser; |
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59 |
session.notopen = true; |
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60 |
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61 |
function session.data(conn, data) |
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local ok, err = parser:parse(data); |
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if ok then return; end |
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session:close("xml-not-well-formed"); |
148 | 65 |
end |
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148 | 67 |
return true; |
68 |
end |
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local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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local function session_close(session, reason) |
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local log = session.log or log; |
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if session.conn then |
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if reason then |
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if type(reason) == "string" then -- assume stream error |
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log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, reason); |
331 | 78 |
session.sends2s(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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elseif type(reason) == "table" then |
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if reason.condition then |
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local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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if reason.text then |
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stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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84 |
end |
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if reason.extra then |
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86 |
stanza:add_child(reason.extra); |
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87 |
end |
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log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
331 | 89 |
session.sends2s(stanza); |
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elseif reason.name then -- a stanza |
331 | 91 |
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)); |
92 |
session.sends2s(reason); |
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93 |
end |
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94 |
end |
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95 |
end |
331 | 96 |
session.sends2s("</stream:stream>"); |
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97 |
session.conn.close(); |
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98 |
xmppserver.disconnect(session.conn, "stream error"); |
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99 |
end |
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100 |
end |
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101 |
|
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102 |
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148 | 103 |
-- End of session methods -- |
104 |
||
105 |
function xmppserver.listener(conn, data) |
|
106 |
local session = sessions[conn]; |
|
107 |
if not session then |
|
108 |
session = s2s_new_incoming(conn); |
|
109 |
sessions[conn] = session; |
|
110 |
||
111 |
-- Logging functions -- |
|
112 |
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113 |
|
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114 |
local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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115 |
session.log = logger.init(conn_name); |
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116 |
|
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117 |
session.log("info", "Incoming s2s connection"); |
148 | 118 |
|
119 |
session.reset_stream = session_reset_stream; |
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120 |
session.close = session_close; |
148 | 121 |
|
122 |
session_reset_stream(session); -- Initialise, ready for use |
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123 |
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124 |
session.dispatch_stanza = stream_callbacks.handlestanza; |
148 | 125 |
end |
126 |
if data then |
|
127 |
session.data(conn, data); |
|
128 |
end |
|
129 |
end |
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130 |
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131 |
function xmppserver.disconnect(conn, err) |
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132 |
local session = sessions[conn]; |
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133 |
if session then |
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134 |
if err and err ~= "closed" and session.srv_hosts then |
974 | 135 |
(session.log or log)("debug", "s2s connection closed unexpectedly"); |
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136 |
if s2s_attempt_connect(session, err) then |
974 | 137 |
(session.log or log)("debug", "...so we're going to try again"); |
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138 |
return; -- Session lives for now |
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139 |
end |
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140 |
end |
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141 |
(session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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142 |
s2s_destroy_session(session); |
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143 |
sessions[conn] = nil; |
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144 |
session = nil; |
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145 |
collectgarbage("collect"); |
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146 |
end |
148 | 147 |
end |
148 |
||
149 |
function xmppserver.register_outgoing(conn, session) |
|
150 |
session.direction = "outgoing"; |
|
151 |
sessions[conn] = session; |
|
152 |
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153 |
session.reset_stream = session_reset_stream; |
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154 |
session.close = session_close; |
148 | 155 |
session_reset_stream(session); -- Initialise, ready for use |
156 |
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157 |
--local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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158 |
--session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
148 | 159 |
end |
160 |
||
161 |
connlisteners_register("xmppserver", xmppserver); |
|
162 |
||
163 |
||
164 |
-- We need to perform some initialisation when a connection is created |
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-- We also need to perform that same initialisation at other points (SASL, TLS, ...) |
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-- ...and we need to handle data |
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ba4711c4e8d2
Committing code to get nicer tracebacks for errors, also we no longer consider such errors fatal (probably a bad thing, I know...)
Matthew Wild <mwild1@gmail.com>
parents:
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changeset
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-- ...and record all sessions associated with connections |