X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=net%2Fxmppserver_listener.lua;h=3af0b9626fc7dac2902a1df1af8952afed02dcad;hb=9219b5b35c5be9687eafac1f840246c10352905e;hp=ddfb185e5562a79eae7643228094688df1bdef66;hpb=5dd6384aa54a7245faa18b685dce6544f9cb66d7;p=prosody.git diff --git a/net/xmppserver_listener.lua b/net/xmppserver_listener.lua index ddfb185e..3af0b962 100644 --- a/net/xmppserver_listener.lua +++ b/net/xmppserver_listener.lua @@ -1,77 +1,84 @@ --- Prosody IM v0.4 --- Copyright (C) 2008-2009 Matthew Wild --- Copyright (C) 2008-2009 Waqas Hussain +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- +local tostring = tostring; +local type = type; +local xpcall = xpcall; +local s_format = string.format; +local traceback = debug.traceback; local logger = require "logger"; local log = logger.init("xmppserver_listener"); -local lxp = require "lxp" -local init_xmlhandlers = require "core.xmlhandlers" +local st = require "util.stanza"; +local connlisteners_register = require "net.connlisteners".register; +local new_xmpp_stream = require "util.xmppstream".new; 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 = { stream_tag = "http://etherx.jabber.org/streams|stream", - default_ns = "jabber:server", +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"); - else + elseif error == "parse-error" then session.log("debug", "Server-to-server XML parse error: %s", tostring(error)); - session:close("xml-not-well-formed"); + session:close("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); +local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), traceback()); end +function stream_callbacks.handlestanza(session, stanza) + if stanza.attr.xmlns == "jabber:client" then --COMPAT: Prosody pre-0.6.2 may send jabber:client + stanza.attr.xmlns = nil; + end + stanza = session.filter("stanzas/in", stanza); + if stanza then + return xpcall(function () return core_process_stanza(session, stanza) end, handleerr); + end end -local connlisteners_register = require "net.connlisteners".register; - -local t_insert = table.insert; -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 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" }; -- These are session methods -- -local function session_reset_stream(session) - -- Reset stream - local parser = lxp.new(init_xmlhandlers(session, stream_callbacks), "|"); - session.parser = parser; - - session.notopen = true; - - function session.data(conn, data) - local ok, err = parser:parse(data); - if ok then return; end - 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); @@ -94,55 +101,94 @@ 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) - local session = sessions[conn]; - if not session then - session = s2s_new_incoming(conn); - sessions[conn] = session; +local function initialize_session(session) + local stream = new_xmpp_stream(session, stream_callbacks); + session.stream = stream; + + session.notopen = true; + + function session.reset_stream() + session.notopen = true; + session.stream:reset(); + end + + local filter = session.filter; + function session.data(data) + data = filter("bytes/in", data); + if data then + local ok, err = stream:feed(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("not-well-formed"); + end + end - -- Logging functions -- + session.close = session_close; + local handlestanza = stream_callbacks.handlestanza; + function session.dispatch_stanza(session, stanza) + return handlestanza(session, stanza); + end +end - +function xmppserver.onconnect(conn) + if not sessions[conn] then -- May be an existing outgoing session + local session = s2s_new_incoming(conn); + sessions[conn] = session; + + -- Logging functions -- 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 - - session.dispatch_stanza = stream_callbacks.handlestanza; + initialize_session(session); end - if data then - session.data(conn, data); +end + +function xmppserver.onincoming(conn, data) + local session = sessions[conn]; + if session then + session.data(data); end end -function xmppserver.disconnect(conn, err) +function xmppserver.onstatus(conn, status) + if status == "ssl-handshake-complete" then + local session = sessions[conn]; + if session and session.direction == "outgoing" then + local to_host, from_host = session.to_host, session.from_host; + session.log("debug", "Sending stream header..."); + session.sends2s(s_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 closed unexpectedly"); + (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 again"); + (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); + (session.log or log)("info", "s2s disconnected: %s->%s (%s)", tostring(session.from_host), tostring(session.to_host), tostring(err or "closed")); + s2s_destroy_session(session, err); sessions[conn] = nil; session = nil; - collectgarbage("collect"); end end @@ -150,12 +196,7 @@ function xmppserver.register_outgoing(conn, session) session.direction = "outgoing"; sessions[conn] = session; - session.reset_stream = session_reset_stream; - session.close = session_close; - session_reset_stream(session); -- Initialise, ready for use - - --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 + initialize_session(session); end connlisteners_register("xmppserver", xmppserver);