MUC: Added multi-session support to the room-exiting occupant use case.

[prosody.git] / plugins / mod_bosh.lua

diff --git a/plugins/mod_bosh.lua b/plugins/mod_bosh.lua
index 46e9a95f6e466073b4ba04c7c7fbdb4628d067c2..e310be28530833b8396dd29f4929c9b4213cc7bf 100644 (file)
--- a/plugins/mod_bosh.lua
+++ b/plugins/mod_bosh.lua
@@ -1,3 +1,10 @@
+-- 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
 
@@ -14,17 +21,18 @@ local core_process_stanza = core_process_stanza;
 local st = require "util.stanza";
 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 stream_callbacks = { stream_tag = "http://jabber.org/protocol/httpbind|body", default_ns = xmlns_bosh };
 
-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 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 BOSH_DEFAULT_HOLD = tonumber(module:get_option("bosh_default_hold")) or 1;
+local BOSH_DEFAULT_INACTIVITY = tonumber(module:get_option("bosh_max_inactivity")) or 60;
+local BOSH_DEFAULT_POLLING = tonumber(module:get_option("bosh_max_polling")) or 5;
+local BOSH_DEFAULT_REQUESTS = tonumber(module:get_option("bosh_max_requests")) or 2;
+local BOSH_DEFAULT_MAXPAUSE = tonumber(module:get_option("bosh_max_pause")) or 300;
 
 local default_headers = { ["Content-Type"] = "text/xml; charset=utf-8" };
+local session_close_reply = { headers = default_headers, body = st.stanza("body", { xmlns = xmlns_bosh, type = "terminate" }), attr = {} };
 
 local t_insert, t_remove, t_concat = table.insert, table.remove, table.concat;
 local os_time = os.time;
@@ -104,11 +112,9 @@ end
 
 local function bosh_reset_stream(session) session.notopen = true; 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();
@@ -128,18 +134,18 @@ function stream_callbacks.streamopened(request, attr)
                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.attr.condition = "host-unknown";
-                       request:send{ headers = default_headers, body = tostring(session_close_reply) };
+                       session_close_reply.body.attr.condition = "host-unknown";
+                       request:send(session_close_reply);
                        request.notopen = nil
                        return;
                end
                
                -- New session
                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, 
+               local session = { type = "c2s_unauthed", conn = {}, sid = sid, rid = tonumber(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, log = logger.init("bosh"..sid) };
+                                               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);
@@ -201,6 +207,21 @@ function stream_callbacks.streamopened(request, attr)
                return;
        end
        
+       if session.rid then
+               local rid = tonumber(attr.rid);
+               local diff = rid - session.rid;
+               if diff > 1 then
+                       session.log("warn", "rid too large (means a request was lost). Last rid: %d New rid: %s", session.rid, attr.rid);
+               elseif diff <= 0 then
+                       -- Repeated, ignore
+                       session.log("debug", "rid repeated (on request %s), ignoring: %d", request.id, session.rid);
+                       request.notopen = nil;
+                       t_insert(session.requests, request);
+                       return;
+               end
+               session.rid = rid;
+       end
+       
        if attr.type == "terminate" then
                -- Client wants to end this session
                session:close();
@@ -267,17 +288,7 @@ function on_timer()
        end
 end
 
-local ports = config.get(module.host, "core", "bosh_ports") or { 5280 };
-for _, options in ipairs(ports) do
-       local port, base, ssl, interface = 5280, "http-bind", false, nil;
-       if type(options) == "number" then
-               port = options;
-       elseif type(options) == "table" then
-               port, base, ssl, interface = options.port or 5280, options.path or "http-bind", options.ssl or false, options.interface;
-       elseif type(options) == "string" then
-               base = options;
-       end
-       httpserver.new{ port = port, base = base, handler = handle_request, ssl = ssl }
-end
+local ports = module:get_option("bosh_ports") or { 5280 };
+httpserver.new_from_config(ports, "http-bind", handle_request);
 
 server.addtimer(on_timer);