Merge with 0.5
[prosody.git] / plugins / mod_bosh.lua
index af4825567ff11c63cd7d11182e433aaee7b84dfa..743ebdef437c67ad73cfd8b74bc080dfd59b87c0 100644 (file)
@@ -1,6 +1,15 @@
+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
 
 module.host = "*" -- Global module
 
+local hosts = _G.hosts;
 local lxp = require "lxp";
 local init_xmlhandlers = require "core.xmlhandlers"
 local server = require "net.server";
@@ -11,17 +20,20 @@ local new_uuid = require "util.uuid".generate;
 local fire_event = require "core.eventmanager".fire_event;
 local core_process_stanza = core_process_stanza;
 local st = require "util.stanza";
-local log = require "util.logger".init("bosh");
+local logger = require "util.logger";
+local log = logger.init("mod_bosh");
 local stream_callbacks = { stream_tag = "http://jabber.org/protocol/httpbind|body" };
 local config = require "core.configmanager";
 local xmlns_bosh = "http://jabber.org/protocol/httpbind"; -- (hard-coded into a literal in session.send)
 
 local BOSH_DEFAULT_HOLD = tonumber(config.get("*", "core", "bosh_default_hold")) or 1;
-local BOSH_DEFAULT_INACTIVITY = tonumber(config.get("*", "core", "bosh_max_inactivity")) or 30;
+local BOSH_DEFAULT_INACTIVITY = tonumber(config.get("*", "core", "bosh_max_inactivity")) or 60;
 local BOSH_DEFAULT_POLLING = tonumber(config.get("*", "core", "bosh_max_polling")) or 5;
 local BOSH_DEFAULT_REQUESTS = tonumber(config.get("*", "core", "bosh_max_requests")) or 2;
 local BOSH_DEFAULT_MAXPAUSE = tonumber(config.get("*", "core", "bosh_max_pause")) or 300;
 
+local default_headers = { ["Content-Type"] = "text/xml; charset=utf-8" };
+
 local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
 local os_time = os.time;
 
@@ -32,6 +44,19 @@ local inactive_sessions = {}; -- Sessions which have no open requests
 local waiting_requests = {};
 function on_destroy_request(request)
        waiting_requests[request] = nil;
+       local session = sessions[request.sid];
+       if session then
+               local requests = session.requests;
+               for i,r in pairs(requests) do
+                       if r == request then requests[i] = nil; break; end
+               end
+               
+               -- If this session now has no requests open, mark it as inactive
+               if #requests == 0 and session.bosh_max_inactive and not inactive_sessions[session] then
+                       inactive_sessions[session] = os_time();
+                       (session.log or log)("debug", "BOSH session marked as inactive at %d", inactive_sessions[session]);
+               end
+       end
 end
 
 function handle_request(method, body, request)
@@ -42,7 +67,7 @@ function handle_request(method, body, request)
                log("debug", "Request %s suffered error %s", tostring(request.id), body);
                return;
        end
-       log("debug", "Handling new request %s: %s\n----------", request.id, tostring(body));
+       --log("debug", "Handling new request %s: %s\n----------", request.id, tostring(body));
        request.notopen = true;
        request.log = log;
        local parser = lxp.new(init_xmlhandlers(request, stream_callbacks), "|");
@@ -79,34 +104,55 @@ function handle_request(method, body, request)
                        waiting_requests[request] = true;
                end
                
-               log("debug", "Had nothing to say, so leaving request unanswered for now");
+               log("debug", "Have nothing to say, so leaving request unanswered for now");
                return true;
        end
 end
 
-local session_close_reply = tostring(st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }));
+
 local function bosh_reset_stream(session) session.notopen = true; end
-local function bosh_close_stream(session, reason) end
+
+local session_close_reply = { headers = default_headers, body = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }), attr = {} };
+local function bosh_close_stream(session, reason)
+       (session.log or log)("info", "BOSH client disconnected");
+       session_close_reply.attr.condition = reason;
+       local session_close_reply = tostring(session_close_reply);
+       for _, held_request in ipairs(session.requests) do
+               held_request:send(session_close_reply);
+               held_request:destroy();
+       end
+       sessions[session.sid]  = nil;
+       sm_destroy_session(session);
+end
 
 function stream_callbacks.streamopened(request, attr)
-       print("Attr:")
-       for k,v in pairs(attr) do print("", k, v); end
        log("debug", "BOSH body open (sid: %s)", attr.sid);
        local sid = attr.sid
        if not sid then
                -- New session request
-               -- TODO: Sanity checks here (rid, to, known host, etc.)
                request.notopen = nil; -- Signals that we accept this opening tag
                
+               -- TODO: Sanity checks here (rid, to, known host, etc.)
+               if not hosts[attr.to] then
+                       -- Unknown host
+                       log("debug", "BOSH client tried to connect to unknown host: %s", tostring(attr.to));
+                       session_close_reply.body.attr.condition = "host-unknown";
+                       request:send(session_close_reply);
+                       request.notopen = nil
+                       return;
+               end
+               
                -- New session
-               sid = tostring(new_uuid());
+               sid = new_uuid();
                local session = { type = "c2s_unauthed", conn = {}, sid = sid, rid = attr.rid, host = attr.to, bosh_version = attr.ver, bosh_wait = attr.wait, streamid = sid, 
                                                bosh_hold = BOSH_DEFAULT_HOLD, bosh_max_inactive = BOSH_DEFAULT_INACTIVITY,
-                                               requests = { }, send_buffer = {}, reset_stream = bosh_reset_stream, close = bosh_close_stream, dispatch_stanza = core_process_stanza };
+                                               requests = { }, send_buffer = {}, reset_stream = bosh_reset_stream, close = bosh_close_stream, 
+                                               dispatch_stanza = core_process_stanza, log = logger.init("bosh"..sid), secure = request.secure };
                sessions[sid] = session;
+               
                log("info", "New BOSH session, assigned it sid '%s'", sid);
                local r, send_buffer = session.requests, session.send_buffer;
-               local response = { }
+               local response = { headers = default_headers }
                function session.send(s)
                        log("debug", "Sending BOSH data: %s", tostring(s));
                        local oldest_request = r[1];
@@ -119,7 +165,7 @@ function stream_callbacks.streamopened(request, attr)
                                log("debug", "We have an open request, so using that to send with");
                                response.body = t_concat{"<body xmlns='http://jabber.org/protocol/httpbind' sid='", sid, "' xmlns:stream = 'http://etherx.jabber.org/streams'>", tostring(s), "</body>" };
                                oldest_request:send(response);
-                               log("debug", "Sent");
+                               --log("debug", "Sent");
                                if oldest_request.stayopen then
                                        if #r>1 then
                                                -- Move front request to back
@@ -133,10 +179,6 @@ function stream_callbacks.streamopened(request, attr)
                                end
                        elseif s ~= "" then
                                log("debug", "Saved to send buffer because there are %d open requests", #r);
-                               if session.bosh_max_inactive and not inactive_sessions[session] then
-                                       inactive_sessions[session] = os_time();
-                                       (session.log or log)("debug", "BOSH session marked as inactive at %d", inactive_sessions[session]);
-                               end
                                -- Hmm, no requests are open :(
                                t_insert(session.send_buffer, tostring(s));
                                log("debug", "There are now %d things in the send_buffer", #session.send_buffer);
@@ -150,9 +192,9 @@ function stream_callbacks.streamopened(request, attr)
                --xmpp:version='1.0' xmlns:xmpp='urn:xmpp:xbosh'
                local response = st.stanza("body", { xmlns = xmlns_bosh, 
                                                                        inactivity = tostring(BOSH_DEFAULT_INACTIVITY), polling = tostring(BOSH_DEFAULT_POLLING), requests = tostring(BOSH_DEFAULT_REQUESTS), hold = tostring(session.bosh_hold), maxpause = "120", 
-                                                                       sid = sid, ver  = '1.6', from = session.host, secure = 'true', ["xmpp:version"] = "1.0", 
+                                                                       sid = sid, authid = sid, ver  = '1.6', from = session.host, secure = 'true', ["xmpp:version"] = "1.0", 
                                                                        ["xmlns:xmpp"] = "urn:xmpp:xbosh", ["xmlns:stream"] = "http://etherx.jabber.org/streams" }):add_child(features);
-               request:send(tostring(response));
+               request:send{ headers = default_headers, body = tostring(response) };
                                
                request.sid = sid;
                return;
@@ -162,20 +204,14 @@ function stream_callbacks.streamopened(request, attr)
        if not session then
                -- Unknown sid
                log("info", "Client tried to use sid '%s' which we don't know about", sid);
-               request:send(tostring(st.stanza("body", { xmlns = xmlns_bosh, type = "terminate", condition = "item-not-found" })));
+               request:send{ headers = default_headers, body = tostring(st.stanza("body", { xmlns = xmlns_bosh, type = "terminate", condition = "item-not-found" })) };
                request.notopen = nil;
                return;
        end
        
        if attr.type == "terminate" then
                -- Client wants to end this session
-               (session.log or log)("info", "BOSH client disconnected");
-               for _, held_request in ipairs(session.requests) do
-                               held_request:send(session_close_reply);
-                               held_request:destroy();
-               end
-               sm_destroy_session(session);
-               sessions[sid]  = nil;
+               session:close();
                request.notopen = nil;
                return;
        end
@@ -199,7 +235,7 @@ function stream_callbacks.streamopened(request, attr)
 end
 
 function stream_callbacks.handlestanza(request, stanza)
-       log("debug", "BOSH stanza received: %s\n", stanza:pretty_print());
+       log("debug", "BOSH stanza received: %s\n", stanza:top_tag());
        local session = sessions[request.sid];
        if session then
                if stanza.attr.xmlns == xmlns_bosh then
@@ -226,14 +262,20 @@ function on_timer()
        
        now = now - 3;
        for session, inactive_since in pairs(inactive_sessions) do
-               if now - inactive_since > session.bosh_max_inactive then
-                       (session.log or log)("debug", "BOSH client inactive too long, destroying session at %d", now);
-                       sessions[session.sid]  = nil;
+               if session.bosh_max_inactive then
+                       if now - inactive_since > session.bosh_max_inactive then
+                               (session.log or log)("debug", "BOSH client inactive too long, destroying session at %d", now);
+                               sessions[session.sid]  = nil;
+                               inactive_sessions[session] = nil;
+                               sm_destroy_session(session, "BOSH client silent for over "..session.bosh_max_inactive.." seconds");
+                       end
+               else
                        inactive_sessions[session] = nil;
-                       sm_destroy_session(session, "BOSH client silent for over "..session.bosh_max_inactive.." seconds");
                end
        end
 end
 
-httpserver.new{ port = 5280, base = "http-bind", handler = handle_request, ssl = false}
+local ports = config.get(module.host, "core", "bosh_ports") or { 5280 };
+httpserver.new_from_config(ports, "http-bind", handle_request);
+
 server.addtimer(on_timer);