author | Matthew Wild <mwild1@gmail.com> |
Fri, 20 Mar 2009 20:16:25 +0000 | |
changeset 896 | 2c0b9e3c11c3 |
parent 760 | 90ce865eebd8 |
child 900 | 686e3e4a7e15 |
permissions | -rw-r--r-- |
896 | 1 |
-- Prosody IM v0.4 |
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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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148 | 10 |
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local logger = require "logger"; |
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local lxp = require "lxp" |
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local init_xmlhandlers = require "core.xmlhandlers" |
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local sm_new_session = require "core.sessionmanager".new_session; |
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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", 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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148 | 36 |
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 sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); |
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local st = stanza; |
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local sessions = {}; |
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local xmppserver = { default_port = 5269, default_mode = "*a" }; |
148 | 48 |
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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 | 53 |
local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); |
148 | 54 |
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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session:close("xml-not-well-formed"); |
148 | 62 |
end |
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148 | 64 |
return true; |
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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 | 75 |
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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end |
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if reason.extra then |
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stanza:add_child(reason.extra); |
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end |
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log("info", "Disconnecting %s[%s], <stream:error> is: %s", session.host or "(unknown host)", session.type, tostring(stanza)); |
331 | 86 |
session.sends2s(stanza); |
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elseif reason.name then -- a stanza |
331 | 88 |
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)); |
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session.sends2s(reason); |
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end |
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end |
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end |
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session.sends2s("</stream:stream>"); |
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session.conn.close(); |
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xmppserver.disconnect(session.conn, "stream error"); |
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end |
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end |
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148 | 100 |
-- End of session methods -- |
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102 |
function xmppserver.listener(conn, data) |
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local session = sessions[conn]; |
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if not session then |
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session = s2s_new_incoming(conn); |
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sessions[conn] = session; |
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-- Logging functions -- |
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local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); |
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session.log = logger.init(conn_name); |
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session.log("info", "Incoming s2s connection"); |
148 | 115 |
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session.reset_stream = session_reset_stream; |
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session.close = session_close; |
148 | 118 |
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session_reset_stream(session); -- Initialise, ready for use |
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session.dispatch_stanza = stream_callbacks.handlestanza; |
148 | 122 |
end |
123 |
if data then |
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session.data(conn, data); |
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end |
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end |
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function xmppserver.disconnect(conn, err) |
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local session = sessions[conn]; |
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if session then |
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if err and err ~= "closed" and session.srv_hosts then |
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if s2s_attempt_connect(session, err) then |
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return; -- Session lives for now |
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end |
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end |
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(session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); |
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s2s_destroy_session(session); |
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sessions[conn] = nil; |
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session = nil; |
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collectgarbage("collect"); |
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141 |
end |
148 | 142 |
end |
143 |
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144 |
function xmppserver.register_outgoing(conn, session) |
|
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session.direction = "outgoing"; |
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146 |
sessions[conn] = session; |
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||
148 |
session.reset_stream = session_reset_stream; |
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149 |
session_reset_stream(session); -- Initialise, ready for use |
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--local function handleerr(err) print("Traceback:", err, debug.traceback()); end |
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152 |
--session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end |
148 | 153 |
end |
154 |
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155 |
connlisteners_register("xmppserver", xmppserver); |
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156 |
||
157 |
||
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-- We need to perform some initialisation when a connection is created |
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159 |
-- We also need to perform that same initialisation at other points (SASL, TLS, ...) |
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161 |
-- ...and we need to handle data |
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162 |
-- ...and record all sessions associated with connections |