plugins/muc/mod_muc.lua

   1 -- Prosody IM
   2 -- Copyright (C) 2008-2009 Matthew Wild
   3 -- Copyright (C) 2008-2009 Waqas Hussain
   4 --
   5 -- This project is MIT/X11 licensed. Please see the
   6 -- COPYING file in the source package for more information.
   7 --
   8
   9
  10 if module:get_host_type() ~= "component" then
  11         error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0);
  12 end
  13
  14 local muc_host = module:get_host();
  15 local muc_name = "Chatrooms";
  16 local history_length = 20;
  17
  18 local muc_new_room = module:require "muc".new_room;
  19 local register_component = require "core.componentmanager".register_component;
  20 local deregister_component = require "core.componentmanager".deregister_component;
  21 local jid_split = require "util.jid".split;
  22 local st = require "util.stanza";
  23 local uuid_gen = require "util.uuid".generate;
  24
  25 local rooms = {};
  26 local component;
  27 local host_room = muc_new_room(muc_host);
  28 host_room.route_stanza = function(room, stanza) core_post_stanza(component, stanza); end;
  29
  30 local function get_disco_info(stanza)
  31         return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
  32                 :tag("identity", {category='conference', type='text', name=muc_name}):up()
  33                 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
  34 end
  35 local function get_disco_items(stanza)
  36         local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
  37         for jid, room in pairs(rooms) do
  38                 reply:tag("item", {jid=jid, name=jid}):up();
  39         end
  40         return reply; -- TODO cache disco reply
  41 end
  42
  43 local function handle_to_domain(origin, stanza)
  44         local type = stanza.attr.type;
  45         if type == "error" or type == "result" then return; end
  46         if stanza.name == "iq" and type == "get" then
  47                 local xmlns = stanza.tags[1].attr.xmlns;
  48                 if xmlns == "http://jabber.org/protocol/disco#info" then
  49                         origin.send(get_disco_info(stanza));
  50                 elseif xmlns == "http://jabber.org/protocol/disco#items" then
  51                         origin.send(get_disco_items(stanza));
  52                 elseif xmlns == "http://jabber.org/protocol/muc#unique" then
  53                         origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
  54                 else
  55                         origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
  56                 end
  57         else
  58                 host_room:handle_stanza(origin, stanza);
  59                 --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
  60         end
  61 end
  62
  63 component = register_component(muc_host, function(origin, stanza)
  64         local to_node, to_host, to_resource = jid_split(stanza.attr.to);
  65         if to_node then
  66                 local bare = to_node.."@"..to_host;
  67                 if to_host == muc_host or bare == muc_host then
  68                         local room = rooms[bare];
  69                         if not room then
  70                                 room = muc_new_room(bare);
  71                                 room.route_stanza = function(room, stanza) core_post_stanza(component, stanza); end;
  72                                 rooms[bare] = room;
  73                         end
  74                         room:handle_stanza(origin, stanza);
  75                 else --[[not for us?]] end
  76                 return;
  77         end
  78         -- to the main muc domain
  79         handle_to_domain(origin, stanza);
  80 end);
  81
  82 prosody.hosts[module:get_host()].muc = { rooms = rooms };
  83
  84 module.unload = function()
  85         deregister_component(muc_host);
  86 end
  87 module.save = function()
  88         return {rooms = rooms};
  89 end
  90 module.restore = function(data)
  91         rooms = data.rooms or {};
  92         prosody.hosts[module:get_host()].muc = { rooms = rooms };
  93 end