X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=net%2Fxmppserver_listener.lua;h=7fe012afa2fdcbcc16f93d7c4eac23ad3c922495;hb=3e8fa633af5dfb52c846d51006ab40369b6ffdb9;hp=4b41afbdd5aa8b67de9a63db7b84e5f7e2a5d883;hpb=47645dbad7351253a52fee791868d9f084b43370;p=prosody.git diff --git a/net/xmppserver_listener.lua b/net/xmppserver_listener.lua index 4b41afbd..7fe012af 100644 --- a/net/xmppserver_listener.lua +++ b/net/xmppserver_listener.lua @@ -1,34 +1,57 @@ --- Prosody IM v0.1 --- Copyright (C) 2008 Matthew Wild --- Copyright (C) 2008 Waqas Hussain +-- Prosody IM +-- Copyright (C) 2008-2009 Matthew Wild +-- Copyright (C) 2008-2009 Waqas Hussain -- --- This program is free software; you can redistribute it and/or --- modify it under the terms of the GNU General Public License --- as published by the Free Software Foundation; either version 2 --- of the License, or (at your option) any later version. --- --- This program is distributed in the hope that it will be useful, --- but WITHOUT ANY WARRANTY; without even the implied warranty of --- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the --- GNU General Public License for more details. --- --- You should have received a copy of the GNU General Public License --- along with this program; if not, write to the Free Software --- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +-- This project is MIT/X11 licensed. Please see the +-- COPYING file in the source package for more information. -- local logger = require "logger"; +local log = logger.init("xmppserver_listener"); local lxp = require "lxp" local init_xmlhandlers = require "core.xmlhandlers" -local sm_new_session = require "core.sessionmanager".new_session; local s2s_new_incoming = require "core.s2smanager".new_incoming; local s2s_streamopened = require "core.s2smanager".streamopened; local s2s_streamclosed = require "core.s2smanager".streamclosed; local s2s_destroy_session = require "core.s2smanager".destroy_session; local s2s_attempt_connect = require "core.s2smanager".attempt_connection; -local stream_callbacks = { streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; +local stream_callbacks = { default_ns = "jabber:server", + streamopened = s2s_streamopened, streamclosed = s2s_streamclosed, handlestanza = core_process_stanza }; + +local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; + +function stream_callbacks.error(session, error, data) + if error == "no-stream" then + session:close("invalid-namespace"); + elseif error == "parse-error" then + session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); + session:close("xml-not-well-formed"); + elseif error == "stream-error" then + local condition, text = "undefined-condition"; + for child in data:children() do + if child.attr.xmlns == xmlns_xmpp_streams then + if child.name ~= "text" then + condition = child.name; + else + text = child:get_text(); + end + if condition ~= "undefined-condition" and text then + break; + end + end + end + text = condition .. (text and (" ("..text..")") or ""); + session.log("info", "Session closed by remote with error: %s", text); + session:close(nil, text); + end +end + +local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), debug.traceback()); end +function stream_callbacks.handlestanza(a, b) + xpcall(function () core_process_stanza(a, b) end, handleerr); +end local connlisteners_register = require "net.connlisteners".register; @@ -37,8 +60,9 @@ local t_concat = table.concat; 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 local m_random = math.random; local format = string.format; -local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; --import("core.sessionmanager", "new_session", "destroy_session"); -local st = stanza; +local sessionmanager = require "core.sessionmanager"; +local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session; +local st = require "util.stanza"; local sessions = {}; local xmppserver = { default_port = 5269, default_mode = "*a" }; @@ -47,22 +71,31 @@ local xmppserver = { default_port = 5269, default_mode = "*a" }; local function session_reset_stream(session) -- Reset stream - local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); + local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "\1"); session.parser = parser; session.notopen = true; function session.data(conn, data) - parser:parse(data); + local ok, err = parser:parse(data); + if ok then return; end + (session.log or log)("warn", "Received invalid XML: %s", data); + (session.log or log)("warn", "Problem was: %s", err); + session:close("xml-not-well-formed"); end + return true; end - local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; -local function session_close(session, reason) +local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; +local function session_close(session, reason, remote_reason) local log = session.log or log; if session.conn then + if session.notopen then + session.sends2s(""); + session.sends2s(st.stanza("stream:stream", default_stream_attr):top_tag()); + end if reason then if type(reason) == "string" then -- assume stream error log("info", "Disconnecting %s[%s], is: %s", session.host or "(unknown host)", session.type, reason); @@ -85,15 +118,18 @@ local function session_close(session, reason) end end session.sends2s(""); - session.conn.close(); - xmppserver.disconnect(session.conn, "stream error"); + if session.notopen or not session.conn:close() then + session.conn:close(true); -- Force FIXME: timer? + end + session.conn:close(); + xmppserver.ondisconnect(session.conn, remote_reason or (reason and (reason.text or reason.condition)) or reason or "stream closed"); end end -- End of session methods -- -function xmppserver.listener(conn, data) +function xmppserver.onincoming(conn, data) local session = sessions[conn]; if not session then session = s2s_new_incoming(conn); @@ -101,47 +137,49 @@ function xmppserver.listener(conn, data) -- Logging functions -- - local mainlog, log = log; - do - local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); - log = logger.init(conn_name); - end - local print = function (...) log("info", t_concatall({...}, "\t")); end - session.log = log; - - print("Incoming s2s connection"); + + local conn_name = "s2sin"..tostring(conn):match("[a-f0-9]+$"); + session.log = logger.init(conn_name); + + session.log("info", "Incoming s2s connection"); session.reset_stream = session_reset_stream; session.close = session_close; session_reset_stream(session); -- Initialise, ready for use - -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, - -- this will avoid the useless indirection we have atm - -- (I'm on a mission, no time to fix now) - - -- Debug version -- --- local function handleerr(err) print("Traceback:", err, debug.traceback()); end --- session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end + session.dispatch_stanza = stream_callbacks.handlestanza; end if data then session.data(conn, data); end end -function xmppserver.disconnect(conn, err) +function xmppserver.status(conn, status) + if status == "ssl-handshake-complete" then + local session = sessions[conn]; + if session and session.direction == "outgoing" then + local format, to_host, from_host = string.format, session.to_host, session.from_host; + session.log("debug", "Sending stream header..."); + session.sends2s(format([[]], from_host, to_host)); + end + end +end + +function xmppserver.ondisconnect(conn, err) local session = sessions[conn]; if session then if err and err ~= "closed" and session.srv_hosts then + (session.log or log)("debug", "s2s connection attempt failed: %s", err); if s2s_attempt_connect(session, err) then + (session.log or log)("debug", "...so we're going to try another target"); return; -- Session lives for now end end (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err)); - s2s_destroy_session(session); + s2s_destroy_session(session, err); sessions[conn] = nil; session = nil; - collectgarbage("collect"); end end @@ -149,14 +187,12 @@ function xmppserver.register_outgoing(conn, session) session.direction = "outgoing"; sessions[conn] = session; - session.reset_stream = session_reset_stream; + session.reset_stream = session_reset_stream; + session.close = session_close; session_reset_stream(session); -- Initialise, ready for use - -- FIXME: Below function should be session,stanza - and xmlhandlers should use :method() notation to call, - -- this will avoid the useless indirection we have atm - -- (I'm on a mission, no time to fix now) - local function handleerr(err) print("Traceback:", err, debug.traceback()); end - session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end + --local function handleerr(err) print("Traceback:", err, debug.traceback()); end + --session.stanza_dispatch = function (stanza) return select(2, xpcall(function () return core_process_stanza(session, stanza); end, handleerr)); end end connlisteners_register("xmppserver", xmppserver);