2 -- Copyright (C) 2008-2010 Matthew Wild
3 -- Copyright (C) 2008-2010 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
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);
14 local muc_host = module:get_host();
15 local muc_name = module:get_option("name");
16 if type(muc_name) ~= "string" then muc_name = "Prosody Chatrooms"; end
17 local restrict_room_creation = module:get_option("restrict_room_creation");
18 if restrict_room_creation then
19 if restrict_room_creation == true then
20 restrict_room_creation = "admin";
21 elseif restrict_room_creation ~= "admin" and restrict_room_creation ~= "local" then
22 restrict_room_creation = nil;
25 local muclib = module:require "muc";
26 local muc_new_room = muclib.new_room;
27 local jid_split = require "util.jid".split;
28 local jid_bare = require "util.jid".bare;
29 local st = require "util.stanza";
30 local uuid_gen = require "util.uuid".generate;
31 local um_is_admin = require "core.usermanager".is_admin;
32 local hosts = prosody.hosts;
36 local persistent_rooms_storage = module:open_store("persistent");
37 local persistent_rooms = persistent_rooms_storage:get() or {};
38 local room_configs = module:open_store("config");
40 -- Configurable options
41 muclib.set_max_history_length(module:get_option_number("max_history_messages"));
43 local function is_admin(jid)
44 return um_is_admin(jid, module.host);
47 local _set_affiliation = muc_new_room.room_mt.set_affiliation;
48 local _get_affiliation = muc_new_room.room_mt.get_affiliation;
49 function muclib.room_mt:get_affiliation(jid)
50 if is_admin(jid) then return "owner"; end
51 return _get_affiliation(self, jid);
53 function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason)
54 if is_admin(jid) then return nil, "modify", "not-acceptable"; end
55 return _set_affiliation(self, actor, jid, affiliation, callback, reason);
58 local function room_route_stanza(room, stanza) module:send(stanza); end
59 local function room_save(room, forced)
60 local node = jid_split(room.jid);
61 persistent_rooms[room.jid] = room._data.persistent;
62 if room._data.persistent then
63 local history = room._data.history;
64 room._data.history = nil;
68 _affiliations = room._affiliations;
70 room_configs:set(node, data);
71 room._data.history = history;
73 room_configs:set(node, nil);
74 if not next(room._occupants) then -- Room empty
75 rooms[room.jid] = nil;
78 if forced then persistent_rooms_storage:set(nil, persistent_rooms); end
81 function create_room(jid)
82 local room = muc_new_room(jid);
83 room.route_stanza = room_route_stanza;
84 room.save = room_save;
89 local persistent_errors = false;
90 for jid in pairs(persistent_rooms) do
91 local node = jid_split(jid);
92 local data = room_configs:get(node);
94 local room = create_room(jid);
95 room._data = data._data;
96 room._affiliations = data._affiliations;
97 else -- missing room data
98 persistent_rooms[jid] = nil;
99 module:log("error", "Missing data for room '%s', removing from persistent room list", jid);
100 persistent_errors = true;
103 if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); end
105 local host_room = muc_new_room(muc_host);
106 host_room.route_stanza = room_route_stanza;
107 host_room.save = room_save;
109 local function get_disco_info(stanza)
110 return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
111 :tag("identity", {category='conference', type='text', name=muc_name}):up()
112 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
114 local function get_disco_items(stanza)
115 local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
116 for jid, room in pairs(rooms) do
117 if not room:is_hidden() then
118 reply:tag("item", {jid=jid, name=room:get_name()}):up();
121 return reply; -- TODO cache disco reply
124 local function handle_to_domain(event)
125 local origin, stanza = event.origin, event.stanza;
126 local type = stanza.attr.type;
127 if type == "error" or type == "result" then return; end
128 if stanza.name == "iq" and type == "get" then
129 local xmlns = stanza.tags[1].attr.xmlns;
130 local node = stanza.tags[1].attr.node;
131 if xmlns == "http://jabber.org/protocol/disco#info" and not node then
132 origin.send(get_disco_info(stanza));
133 elseif xmlns == "http://jabber.org/protocol/disco#items" and not node then
134 origin.send(get_disco_items(stanza));
135 elseif xmlns == "http://jabber.org/protocol/muc#unique" then
136 origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
138 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
141 host_room:handle_stanza(origin, stanza);
142 --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
147 function stanza_handler(event)
148 local origin, stanza = event.origin, event.stanza;
149 local bare = jid_bare(stanza.attr.to);
150 local room = rooms[bare];
152 if stanza.name ~= "presence" then
153 origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
156 if not(restrict_room_creation) or
157 (restrict_room_creation == "admin" and is_admin(stanza.attr.from)) or
158 (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then
159 room = create_room(bare);
163 room:handle_stanza(origin, stanza);
164 if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room
165 rooms[bare] = nil; -- discard room
168 origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
172 module:hook("iq/bare", stanza_handler, -1);
173 module:hook("message/bare", stanza_handler, -1);
174 module:hook("presence/bare", stanza_handler, -1);
175 module:hook("iq/full", stanza_handler, -1);
176 module:hook("message/full", stanza_handler, -1);
177 module:hook("presence/full", stanza_handler, -1);
178 module:hook("iq/host", handle_to_domain, -1);
179 module:hook("message/host", handle_to_domain, -1);
180 module:hook("presence/host", handle_to_domain, -1);
182 hosts[module.host].send = function(stanza) -- FIXME do a generic fix
183 if stanza.attr.type == "result" or stanza.attr.type == "error" then
185 else error("component.send only supports result and error stanzas at the moment"); end
188 hosts[module:get_host()].muc = { rooms = rooms };
191 module.save = function()
193 return {rooms = rooms};
195 module.restore = function(data)
196 for jid, oldroom in pairs(data.rooms or {}) do
197 local room = create_room(jid);
198 room._jid_nick = oldroom._jid_nick;
199 room._occupants = oldroom._occupants;
200 room._data = oldroom._data;
201 room._affiliations = oldroom._affiliations;
203 hosts[module:get_host()].muc = { rooms = rooms };
206 function shutdown_room(room, stanza)
207 for nick, occupant in pairs(room._occupants) do
208 stanza.attr.from = nick;
209 for jid in pairs(occupant.sessions) do
210 stanza.attr.to = jid;
211 room:_route_stanza(stanza);
212 room._jid_nick[jid] = nil;
214 room._occupants[nick] = nil;
217 function shutdown_component()
219 local stanza = st.presence({type = "unavailable"})
220 :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
221 :tag("item", { affiliation='none', role='none' }):up();
222 for roomjid, room in pairs(rooms) do
223 shutdown_room(room, stanza);
225 shutdown_room(host_room, stanza);
228 module.unload = shutdown_component;
229 module:hook_global("server-stopping", shutdown_component);