author | Matthew Wild <mwild1@gmail.com> |
Wed, 01 May 2013 13:54:31 +0100 | |
branch | sasl |
changeset 5555 | 70a7ef4b6aaa |
parent 1618 | ba2a92230b77 |
child 1686 | 232c2bf155c7 |
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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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local logger = require "logger"; |
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local log = logger.init("xmppserver_listener"); |
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local lxp = require "lxp" |
14 |
local init_xmlhandlers = require "core.xmlhandlers" |
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local s2s_new_incoming = require "core.s2smanager".new_incoming; |
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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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end |
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end |
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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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local connlisteners_register = require "net.connlisteners".register; |
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local t_insert = table.insert; |
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local t_concat = table.concat; |
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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 |
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local m_random = math.random; |
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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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local sessions = {}; |
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local xmppserver = { default_port = 5269, default_mode = "*a" }; |
148 | 51 |
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-- These are session methods -- |
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local function session_reset_stream(session) |
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-- 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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session.notopen = true; |
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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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log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " ")); |
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session:close("xml-not-well-formed"); |
148 | 66 |
end |
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148 | 68 |
return true; |
69 |
end |
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local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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local default_stream_attr = { ["xmlns:stream"] = stream_callbacks.stream_tag:gsub("%|[^|]+$", ""), xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; |
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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 session.notopen then |
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session.sends2s("<?xml version='1.0'?>"); |
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session.sends2s(st.stanza("stream:stream", default_stream_attr):top_tag()); |
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end |
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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 | 84 |
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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90 |
end |
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if reason.extra then |
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stanza:add_child(reason.extra); |
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93 |
end |
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94 |
log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
331 | 95 |
session.sends2s(stanza); |
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elseif reason.name then -- a stanza |
331 | 97 |
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)); |
98 |
session.sends2s(reason); |
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99 |
end |
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100 |
end |
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101 |
end |
331 | 102 |
session.sends2s("</stream:stream>"); |
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103 |
session.conn.close(); |
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104 |
xmppserver.disconnect(session.conn, "stream error"); |
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105 |
end |
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106 |
end |
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107 |
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108 |
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148 | 109 |
-- End of session methods -- |
110 |
||
111 |
function xmppserver.listener(conn, data) |
|
112 |
local session = sessions[conn]; |
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113 |
if not session then |
|
114 |
session = s2s_new_incoming(conn); |
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115 |
sessions[conn] = session; |
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116 |
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117 |
-- Logging functions -- |
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118 |
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120 |
local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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121 |
session.log = logger.init(conn_name); |
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123 |
session.log("info", "Incoming s2s connection"); |
148 | 124 |
|
125 |
session.reset_stream = session_reset_stream; |
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126 |
session.close = session_close; |
148 | 127 |
|
128 |
session_reset_stream(session); -- Initialise, ready for use |
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130 |
session.dispatch_stanza = stream_callbacks.handlestanza; |
148 | 131 |
end |
132 |
if data then |
|
133 |
session.data(conn, data); |
|
134 |
end |
|
135 |
end |
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136 |
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137 |
function xmppserver.disconnect(conn, err) |
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138 |
local session = sessions[conn]; |
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139 |
if session then |
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140 |
if err and err ~= "closed" and session.srv_hosts then |
974 | 141 |
(session.log or log)("debug", "s2s connection closed unexpectedly"); |
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142 |
if s2s_attempt_connect(session, err) then |
974 | 143 |
(session.log or log)("debug", "...so we're going to try again"); |
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144 |
return; -- Session lives for now |
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145 |
end |
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146 |
end |
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147 |
(session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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148 |
s2s_destroy_session(session); |
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149 |
sessions[conn] = nil; |
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session = nil; |
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|
151 |
collectgarbage("collect"); |
3fec9b512d4e
Clean up session when s2s connections are disconnected
Matthew Wild <mwild1@gmail.com>
parents:
148
diff
changeset
|
152 |
end |
148 | 153 |
end |
154 |
||
155 |
function xmppserver.register_outgoing(conn, session) |
|
156 |
session.direction = "outgoing"; |
|
157 |
sessions[conn] = session; |
|
158 |
||
990
235abebc896e
xmppserver_listener: Add session:close() method to outgoing s2s connections too
Matthew Wild <mwild1@gmail.com>
parents:
974
diff
changeset
|
159 |
session.reset_stream = session_reset_stream; |
235abebc896e
xmppserver_listener: Add session:close() method to outgoing s2s connections too
Matthew Wild <mwild1@gmail.com>
parents:
974
diff
changeset
|
160 |
session.close = session_close; |
148 | 161 |
session_reset_stream(session); -- Initialise, ready for use |
162 |
||
585
033817e12ddb
Code tidying for xmpp{client,server}_listeners
Matthew Wild <mwild1@gmail.com>
parents:
557
diff
changeset
|
163 |
--local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
033817e12ddb
Code tidying for xmpp{client,server}_listeners
Matthew Wild <mwild1@gmail.com>
parents:
557
diff
changeset
|
164 |
--session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
148 | 165 |
end |
166 |
||
167 |
connlisteners_register("xmppserver", xmppserver); |
|
168 |
||
169 |
||
170 |
-- We need to perform some initialisation when a connection is created |
|
171 |
-- We also need to perform that same initialisation at other points (SASL, TLS, ...) |
|
172 |
||
173 |
-- ...and we need to handle data |
|
226
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:
163
diff
changeset
|
174 |
-- ...and record all sessions associated with connections |