Merge Tobias->trunk
[prosody.git] / net / xmppserver_listener.lua
index d1272edb117917270c8c02ef550d2a5d61da8f6f..3af0b9626fc7dac2902a1df1af8952afed02dcad 100644 (file)
@@ -7,11 +7,17 @@
 --
 
 
+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;
@@ -27,7 +33,7 @@ function stream_callbacks.error(session, error, data)
                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");
+               session:close("not-well-formed");
        elseif error == "stream-error" then
                local condition, text = "undefined-condition";
                for child in data:children() do
@@ -48,48 +54,22 @@ function stream_callbacks.error(session, error, data)
        end
 end
 
-local function handleerr(err) log("error", "Traceback[s2s]: %s: %s", tostring(err), debug.traceback()); end
-function stream_callbacks.handlestanza(a, b)
-       if b.attr.xmlns == "jabber:client" then --COMPAT: Prosody pre-0.6.2 may send jabber:client
-               b.attr.xmlns = nil;
+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
-       xpcall(function () core_process_stanza(a, b) end, handleerr);
 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), "\1");
-               session.parser = parser;
-               
-               session.notopen = true;
-               
-               function session.data(conn, 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 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)
@@ -132,29 +112,55 @@ end
 
 -- End of session methods --
 
-function xmppserver.onincoming(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
        
@@ -162,9 +168,9 @@ function xmppserver.onstatus(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;
+                       local to_host, from_host = session.to_host, session.from_host;
                        session.log("debug", "Sending stream header...");
-                       session.sends2s(format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0'>]], from_host, to_host));
+                       session.sends2s(s_format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0'>]], from_host, to_host));
                end
        end
 end
@@ -190,12 +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);