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 datamanager = require "util.datamanager";
32 local um_is_admin = require "core.usermanager".is_admin;
37 local persistent_rooms = datamanager.load(nil, muc_host, "persistent") or {};
39 -- Configurable options
40 muclib.set_max_history_length(module:get_option_number("max_history_messages"));
42 local function is_admin(jid)
43 return um_is_admin(jid, module.host);
46 local _set_affiliation = muc_new_room.room_mt.set_affiliation;
47 local _get_affiliation = muc_new_room.room_mt.get_affiliation;
48 function muclib.room_mt:get_affiliation(jid)
49 if is_admin(jid) then return "owner"; end
50 return _get_affiliation(self, jid);
52 function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason)
53 if is_admin(jid) then return nil, "modify", "not-acceptable"; end
54 return _set_affiliation(self, actor, jid, affiliation, callback, reason);
57 local function room_route_stanza(room, stanza) module:send(stanza); end
58 local function room_save(room, forced)
59 local node = jid_split(room.jid);
60 persistent_rooms[room.jid] = room._data.persistent;
61 if room._data.persistent then
62 local history = room._data.history;
63 room._data.history = nil;
67 _affiliations = room._affiliations;
69 datamanager.store(node, muc_host, "config", data);
70 room._data.history = history;
72 datamanager.store(node, muc_host, "config", nil);
73 if not next(room._occupants) then -- Room empty
74 rooms[room.jid] = nil;
77 if forced then datamanager.store(nil, muc_host, "persistent", persistent_rooms); end
80 function create_room(jid)
81 local room = muc_new_room(jid);
82 room.route_stanza = room_route_stanza;
83 room.save = room_save;
88 local persistent_errors = false;
89 for jid in pairs(persistent_rooms) do
90 local node = jid_split(jid);
91 local data = datamanager.load(node, muc_host, "config");
93 local room = create_room(jid);
94 room._data = data._data;
95 room._affiliations = data._affiliations;
96 else -- missing room data
97 persistent_rooms[jid] = nil;
98 module:log("error", "Missing data for room '%s', removing from persistent room list", jid);
99 persistent_errors = true;
102 if persistent_errors then datamanager.store(nil, muc_host, "persistent", persistent_rooms); end
104 local host_room = muc_new_room(muc_host);
105 host_room.route_stanza = room_route_stanza;
106 host_room.save = room_save;
108 local function get_disco_info(stanza)
109 return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
110 :tag("identity", {category='conference', type='text', name=muc_name}):up()
111 :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
113 local function get_disco_items(stanza)
114 local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
115 for jid, room in pairs(rooms) do
116 if not room:is_hidden() then
117 reply:tag("item", {jid=jid, name=room:get_name()}):up();
120 return reply; -- TODO cache disco reply
123 local function handle_to_domain(event)
124 local origin, stanza = event.origin, event.stanza;
125 local type = stanza.attr.type;
126 if type == "error" or type == "result" then return; end
127 if stanza.name == "iq" and type == "get" then
128 local xmlns = stanza.tags[1].attr.xmlns;
129 local node = stanza.tags[1].attr.node;
130 if xmlns == "http://jabber.org/protocol/disco#info" and not node then
131 origin.send(get_disco_info(stanza));
132 elseif xmlns == "http://jabber.org/protocol/disco#items" and not node then
133 origin.send(get_disco_items(stanza));
134 elseif xmlns == "http://jabber.org/protocol/muc#unique" then
135 origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
137 origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
140 host_room:handle_stanza(origin, stanza);
141 --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
146 function stanza_handler(event)
147 local origin, stanza = event.origin, event.stanza;
148 local bare = jid_bare(stanza.attr.to);
149 local room = rooms[bare];
151 if stanza.name ~= "presence" then
152 origin.send(st.error_reply(stanza, "cancel", "item-not-found"));
155 if not(restrict_room_creation) or
156 (restrict_room_creation == "admin" and is_admin(stanza.attr.from)) or
157 (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then
158 room = create_room(bare);
162 room:handle_stanza(origin, stanza);
163 if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room
164 rooms[bare] = nil; -- discard room
167 origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
171 module:hook("iq/bare", stanza_handler, -1);
172 module:hook("message/bare", stanza_handler, -1);
173 module:hook("presence/bare", stanza_handler, -1);
174 module:hook("iq/full", stanza_handler, -1);
175 module:hook("message/full", stanza_handler, -1);
176 module:hook("presence/full", stanza_handler, -1);
177 module:hook("iq/host", handle_to_domain, -1);
178 module:hook("message/host", handle_to_domain, -1);
179 module:hook("presence/host", handle_to_domain, -1);
181 hosts[module.host].send = function(stanza) -- FIXME do a generic fix
182 if stanza.attr.type == "result" or stanza.attr.type == "error" then
184 else error("component.send only supports result and error stanzas at the moment"); end
187 hosts[module:get_host()].muc = { rooms = rooms };
190 module.save = function()
192 return {rooms = rooms};
194 module.restore = function(data)
195 for jid, oldroom in pairs(data.rooms or {}) do
196 local room = create_room(jid);
197 room._jid_nick = oldroom._jid_nick;
198 room._occupants = oldroom._occupants;
199 room._data = oldroom._data;
200 room._affiliations = oldroom._affiliations;
202 hosts[module:get_host()].muc = { rooms = rooms };
205 function shutdown_room(room, stanza)
206 for nick, occupant in pairs(room._occupants) do
207 stanza.attr.from = nick;
208 for jid in pairs(occupant.sessions) do
209 stanza.attr.to = jid;
210 room:_route_stanza(stanza);
211 room._jid_nick[jid] = nil;
213 room._occupants[nick] = nil;
216 function shutdown_component()
218 local stanza = st.presence({type = "unavailable"})
219 :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
220 :tag("item", { affiliation='none', role='none' }):up();
221 for roomjid, room in pairs(rooms) do
222 shutdown_room(room, stanza);
224 shutdown_room(host_room, stanza);
227 module.unload = shutdown_component;
228 module:hook_global("server-stopping", shutdown_component);