Automated merge with http://prosody.im/source/hg
authorTobias Markmann <tm@ayena.de>
Sun, 6 Sep 2009 20:08:05 +0000 (22:08 +0200)
committerTobias Markmann <tm@ayena.de>
Sun, 6 Sep 2009 20:08:05 +0000 (22:08 +0200)
plugins/muc/mod_muc.lua [deleted file]
plugins/muc/muc.lib.lua [deleted file]

diff --git a/plugins/muc/mod_muc.lua b/plugins/muc/mod_muc.lua
deleted file mode 100644 (file)
index 41c8a74..0000000
+++ /dev/null
@@ -1,145 +0,0 @@
--- 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.
---
-
-
-if module:get_host_type() ~= "component" then
-       error("MUC should be loaded as a component, please see http://prosody.im/doc/components", 0);
-end
-
-local muc_host = module:get_host();
-local muc_name = "Chatrooms";
-local history_length = 20;
-
-local muc_new_room = module:require "muc".new_room;
-local register_component = require "core.componentmanager".register_component;
-local deregister_component = require "core.componentmanager".deregister_component;
-local jid_split = require "util.jid".split;
-local st = require "util.stanza";
-local uuid_gen = require "util.uuid".generate;
-local datamanager = require "util.datamanager";
-
-local rooms = {};
-local persistent_rooms = datamanager.load(nil, muc_host, "persistent") or {};
-local component;
-
-local function room_route_stanza(room, stanza) core_post_stanza(component, stanza); end
-local function room_save(room, forced)
-       local node = jid_split(room.jid);
-       persistent_rooms[room.jid] = room._data.persistent;
-       module:log("debug", "1, %s, %s", room.jid, tostring(room._data.persistent));
-       if room._data.persistent then
-               module:log("debug", "2");
-               local history = room._data.history;
-               room._data.history = nil;
-               local data = {
-                       jid = room.jid;
-                       _data = room._data;
-                       _affiliations = room._affiliations;
-               };
-               datamanager.store(node, muc_host, "config", data);
-               room._data.history = history;
-       elseif forced then
-               module:log("debug", "3");
-               datamanager.store(node, muc_host, "config", nil);
-       end
-       module:log("debug", "4");
-       if forced then datamanager.store(nil, muc_host, "persistent", persistent_rooms); end
-end
-
-for jid in pairs(persistent_rooms) do
-       local node = jid_split(jid);
-       local data = datamanager.load(node, muc_host, "config") or {};
-       local room = muc_new_room(jid);
-       room._data = data._data;
-       room._affiliations = data._affiliations;
-       room.route_stanza = room_route_stanza;
-       room.save = room_save;
-       rooms[jid] = room;
-end
-
-local host_room = muc_new_room(muc_host);
-host_room.route_stanza = room_route_stanza;
-host_room.save = room_save;
-
-local function get_disco_info(stanza)
-       return st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
-               :tag("identity", {category='conference', type='text', name=muc_name}):up()
-               :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
-end
-local function get_disco_items(stanza)
-       local reply = st.iq({type='result', id=stanza.attr.id, from=muc_host, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
-       for jid, room in pairs(rooms) do
-               if not room._data.hidden then
-                       reply:tag("item", {jid=jid, name=jid}):up();
-               end
-       end
-       return reply; -- TODO cache disco reply
-end
-
-local function handle_to_domain(origin, stanza)
-       local type = stanza.attr.type;
-       if type == "error" or type == "result" then return; end
-       if stanza.name == "iq" and type == "get" then
-               local xmlns = stanza.tags[1].attr.xmlns;
-               if xmlns == "http://jabber.org/protocol/disco#info" then
-                       origin.send(get_disco_info(stanza));
-               elseif xmlns == "http://jabber.org/protocol/disco#items" then
-                       origin.send(get_disco_items(stanza));
-               elseif xmlns == "http://jabber.org/protocol/muc#unique" then
-                       origin.send(st.reply(stanza):tag("unique", {xmlns = xmlns}):text(uuid_gen())); -- FIXME Random UUIDs can theoretically have collisions
-               else
-                       origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
-               end
-       else
-               host_room:handle_stanza(origin, stanza);
-               --origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
-       end
-end
-
-component = register_component(muc_host, function(origin, stanza)
-       local to_node, to_host, to_resource = jid_split(stanza.attr.to);
-       if to_node then
-               local bare = to_node.."@"..to_host;
-               if to_host == muc_host or bare == muc_host then
-                       local room = rooms[bare];
-                       if not room then
-                               room = muc_new_room(bare);
-                               room.route_stanza = room_route_stanza;
-                               room.save = room_save;
-                               rooms[bare] = room;
-                       end
-                       room:handle_stanza(origin, stanza);
-               else --[[not for us?]] end
-               return;
-       end
-       -- to the main muc domain
-       handle_to_domain(origin, stanza);
-end);
-
-prosody.hosts[module:get_host()].muc = { rooms = rooms };
-
-module.unload = function()
-       deregister_component(muc_host);
-end
-module.save = function()
-       return {rooms = rooms};
-end
-module.restore = function(data)
-       rooms = {};
-       for jid, oldroom in pairs(data.rooms or {}) do
-               local room = muc_new_room(jid);
-               room._jid_nick = oldroom._jid_nick;
-               room._occupants = oldroom._occupants;
-               room._data = oldroom._data;
-               room._affiliations = oldroom._affiliations;
-               room.route_stanza = room_route_stanza;
-               room.save = room_save;
-               rooms[jid] = room;
-       end
-       prosody.hosts[module:get_host()].muc = { rooms = rooms };
-end
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua
deleted file mode 100644 (file)
index c63d579..0000000
+++ /dev/null
@@ -1,643 +0,0 @@
--- 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.
---
-
-local datamanager = require "util.datamanager";
-local datetime = require "util.datetime";
-
-local jid_split = require "util.jid".split;
-local jid_bare = require "util.jid".bare;
-local st = require "util.stanza";
-local log = require "util.logger".init("mod_muc");
-local multitable_new = require "util.multitable".new;
-local t_insert, t_remove = table.insert, table.remove;
-local setmetatable = setmetatable;
-
-local muc_domain = nil; --module:get_host();
-local history_length = 20;
-
-------------
-local function filter_xmlns_from_array(array, filters)
-       local count = 0;
-       for i=#array,1,-1 do
-               local attr = array[i].attr;
-               if filters[attr and attr.xmlns] then
-                       t_remove(array, i);
-                       count = count + 1;
-               end
-       end
-       return count;
-end
-local function filter_xmlns_from_stanza(stanza, filters)
-       if filters then
-               if filter_xmlns_from_array(stanza.tags, filters) ~= 0 then
-                       return stanza, filter_xmlns_from_array(stanza, filters);
-               end
-       end
-       return stanza, 0;
-end
-local presence_filters = {["http://jabber.org/protocol/muc"]=true;["http://jabber.org/protocol/muc#user"]=true};
-local function get_filtered_presence(stanza)
-       return filter_xmlns_from_stanza(st.clone(stanza), presence_filters);
-end
-local kickable_error_conditions = {
-       ["gone"] = true;
-       ["internal-server-error"] = true;
-       ["item-not-found"] = true;
-       ["jid-malformed"] = true;
-       ["recipient-unavailable"] = true;
-       ["redirect"] = true;
-       ["remote-server-not-found"] = true;
-       ["remote-server-timeout"] = true;
-       ["service-unavailable"] = true;
-};
-local function get_kickable_error(stanza)
-       for _, tag in ipairs(stanza.tags) do
-               if tag.name == "error" and tag.attr.xmlns == "jabber:client" then
-                       for _, cond in ipairs(tag.tags) do
-                               if cond.attr.xmlns == "urn:ietf:params:xml:ns:xmpp-stanzas" then
-                                       return kickable_error_conditions[cond.name] and cond.name;
-                               end
-                       end
-                       return true; -- malformed error message
-               end
-       end
-       return true; -- malformed error message
-end
-local function getUsingPath(stanza, path, getText)
-       local tag = stanza;
-       for _, name in ipairs(path) do
-               if type(tag) ~= 'table' then return; end
-               tag = tag:child_with_name(name);
-       end
-       if tag and getText then tag = table.concat(tag); end
-       return tag;
-end
-local function getTag(stanza, path) return getUsingPath(stanza, path); end
-local function getText(stanza, path) return getUsingPath(stanza, path, true); end
------------
-
---[[function get_room_disco_info(room, stanza)
-       return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
-               :tag("identity", {category='conference', type='text', name=room._data["name"]):up()
-               :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
-end
-function get_room_disco_items(room, stanza)
-       return st.iq({type='result', id=stanza.attr.id, from=stanza.attr.to, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
-end -- TODO allow non-private rooms]]
-
---
-
-local room_mt = {};
-room_mt.__index = room_mt;
-
-function room_mt:get_default_role(affiliation)
-       if affiliation == "owner" or affiliation == "admin" then
-               return "moderator";
-       elseif affiliation == "member" or not affiliation then
-               return "participant";
-       end
-end
-
-function room_mt:broadcast_presence(stanza, code, nick)
-       stanza = get_filtered_presence(stanza);
-       local data = self._occupants[stanza.attr.from];
-       stanza:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
-               :tag("item", {affiliation=data.affiliation, role=data.role, nick=nick}):up();
-       if code then
-               stanza:tag("status", {code=code}):up();
-       end
-       local me;
-       for occupant, o_data in pairs(self._occupants) do
-               if occupant ~= stanza.attr.from then
-                       for jid in pairs(o_data.sessions) do
-                               stanza.attr.to = jid;
-                               self:route_stanza(stanza);
-                       end
-               else
-                       me = o_data;
-               end
-       end
-       if me then
-               stanza:tag("status", {code='110'});
-               for jid in pairs(me.sessions) do
-                       stanza.attr.to = jid;
-                       self:route_stanza(stanza);
-               end
-       end
-end
-function room_mt:broadcast_message(stanza, historic)
-       for occupant, o_data in pairs(self._occupants) do
-               for jid in pairs(o_data.sessions) do
-                       stanza.attr.to = jid;
-                       self:route_stanza(stanza);
-               end
-       end
-       if historic then -- add to history
-               local history = self._data['history'];
-               if not history then history = {}; self._data['history'] = history; end
-               -- stanza = st.clone(stanza);
-               stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = muc_domain, stamp = datetime.datetime()}):up(); -- XEP-0203
-               stanza:tag("x", {xmlns = "jabber:x:delay", from = muc_domain, stamp = datetime.legacy()}):up(); -- XEP-0091 (deprecated)
-               t_insert(history, st.clone(st.preserialize(stanza)));
-               while #history > history_length do t_remove(history, 1) end
-       end
-end
-function room_mt:broadcast_except_nick(stanza, nick)
-       for rnick, occupant in pairs(self._occupants) do
-               if rnick ~= nick then
-                       for jid in pairs(occupant.sessions) do
-                               stanza.attr.to = jid;
-                               self:route_stanza(stanza);
-                       end
-               end
-       end
-end
-
-function room_mt:send_occupant_list(to)
-       local current_nick = self._jid_nick[to];
-       for occupant, o_data in pairs(self._occupants) do
-               if occupant ~= current_nick then
-                       local pres = get_filtered_presence(o_data.sessions[o_data.jid]);
-                       pres.attr.to, pres.attr.from = to, occupant;
-                       pres:tag("x", {xmlns='http://jabber.org/protocol/muc#user'})
-                               :tag("item", {affiliation=o_data.affiliation, role=o_data.role}):up();
-                       self:route_stanza(pres);
-               end
-       end
-end
-function room_mt:send_history(to)
-       local history = self._data['history']; -- send discussion history
-       if history then
-               for _, msg in ipairs(history) do
-                       msg = st.deserialize(msg);
-                       msg.attr.to=to;
-                       self:route_stanza(msg);
-               end
-       end
-       if self._data['subject'] then
-               self:route_stanza(st.message({type='groupchat', from=self.jid, to=to}):tag("subject"):text(self._data['subject']));
-       end
-end
-
-local function room_get_disco_info(self, stanza)
-       return st.reply(stanza):query("http://jabber.org/protocol/disco#info"):tag("identity", {category="conference", type="text"});
-end
-local function room_get_disco_items(self, stanza)
-       return st.reply(stanza):query("http://jabber.org/protocol/disco#items");
-end
-function room_mt:set_subject(current_nick, subject)
-       -- TODO check nick's authority
-       if subject == "" then subject = nil; end
-       self._data['subject'] = subject;
-       if self.save then self:save(); end
-       local msg = st.message({type='groupchat', from=current_nick})
-               :tag('subject'):text(subject):up();
-       self:broadcast_message(msg, false);
-       return true;
-end
-
-function room_mt:handle_to_occupant(origin, stanza) -- PM, vCards, etc
-       local from, to = stanza.attr.from, stanza.attr.to;
-       local room = jid_bare(to);
-       local current_nick = self._jid_nick[from];
-       local type = stanza.attr.type;
-       log("debug", "room: %s, current_nick: %s, stanza: %s", room or "nil", current_nick or "nil", stanza:top_tag());
-       if (select(2, jid_split(from)) == muc_domain) then error("Presence from the MUC itself!!!"); end
-       if stanza.name == "presence" then
-               local pr = get_filtered_presence(stanza);
-               pr.attr.from = current_nick;
-               if type == "error" then -- error, kick em out!
-                       if current_nick then
-                               log("debug", "kicking %s from %s", current_nick, room);
-                               self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to})
-                                       :tag('status'):text('This participant is kicked from the room because he sent an error presence')); -- send unavailable
-                       end
-               elseif type == "unavailable" then -- unavailable
-                       if current_nick then
-                               log("debug", "%s leaving %s", current_nick, room);
-                               local data = self._occupants[current_nick];
-                               data.role = 'none';
-                               self:broadcast_presence(pr);
-                               self._occupants[current_nick] = nil;
-                               self._jid_nick[from] = nil;
-                       end
-               elseif not type then -- available
-                       if current_nick then
-                               --if #pr == #stanza or current_nick ~= to then -- commented because google keeps resending directed presence
-                                       if current_nick == to then -- simple presence
-                                               log("debug", "%s broadcasted presence", current_nick);
-                                               self._occupants[current_nick].sessions[from] = pr;
-                                               self:broadcast_presence(pr);
-                                       else -- change nick
-                                               if self._occupants[to] then
-                                                       log("debug", "%s couldn't change nick", current_nick);
-                                                       origin.send(st.error_reply(stanza, "cancel", "conflict"):tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
-                                               else
-                                                       local data = self._occupants[current_nick];
-                                                       local to_nick = select(3, jid_split(to));
-                                                       if to_nick then
-                                                               log("debug", "%s (%s) changing nick to %s", current_nick, data.jid, to);
-                                                               local p = st.presence({type='unavailable', from=current_nick});
-                                                               self:broadcast_presence(p, '303', to_nick);
-                                                               self._occupants[current_nick] = nil;
-                                                               self._occupants[to] = data;
-                                                               self._jid_nick[from] = to;
-                                                               pr.attr.from = to;
-                                                               self._occupants[to].sessions[from] = pr;
-                                                               self:broadcast_presence(pr);
-                                                       else
-                                                               --TODO malformed-jid
-                                                       end
-                                               end
-                                       end
-                               --else -- possible rejoin
-                               --      log("debug", "%s had connection replaced", current_nick);
-                               --      self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to})
-                               --              :tag('status'):text('Replaced by new connection'):up()); -- send unavailable
-                               --      self:handle_to_occupant(origin, stanza); -- resend available
-                               --end
-                       else -- enter room
-                               local new_nick = to;
-                               if self._occupants[to] then
-                                       new_nick = nil;
-                               end
-                               if not new_nick then
-                                       log("debug", "%s couldn't join due to nick conflict: %s", from, to);
-                                       origin.send(st.error_reply(stanza, "cancel", "conflict"):tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
-                               else
-                                       log("debug", "%s joining as %s", from, to);
-                                       if not next(self._affiliations) then -- new room, no owners
-                                               self._affiliations[jid_bare(from)] = "owner";
-                                       end
-                                       local affiliation = self:get_affiliation(from);
-                                       local role = self:get_default_role(affiliation)
-                                       if role then -- new occupant
-                                               self._occupants[to] = {affiliation=affiliation, role=role, jid=from, sessions={[from]=get_filtered_presence(stanza)}};
-                                               self._jid_nick[from] = to;
-                                               self:send_occupant_list(from);
-                                               pr.attr.from = to;
-                                               self:broadcast_presence(pr);
-                                               self:send_history(from);
-                                       else -- banned
-                                               origin.send(st.error_reply(stanza, "auth", "forbidden"):tag("x", {xmlns = "http://jabber.org/protocol/muc"}));
-                                       end
-                               end
-                       end
-               elseif type ~= 'result' then -- bad type
-                       origin.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME correct error?
-               end
-       elseif not current_nick and type ~= "error" and type ~= "result" then -- not in room
-               origin.send(st.error_reply(stanza, "cancel", "not-acceptable"));
-       elseif stanza.name == "message" and type == "groupchat" then -- groupchat messages not allowed in PM
-               origin.send(st.error_reply(stanza, "modify", "bad-request"));
-       elseif stanza.name == "message" and type == "error" and get_kickable_error(stanza) then
-               log("debug", "%s kicked from %s for sending an error message", current_nick, room);
-               self:handle_to_occupant(origin, st.presence({type='unavailable', from=from, to=to}):tag('status'):text('This participant is kicked from the room because he sent an error message to another occupant')); -- send unavailable
-       else -- private stanza
-               local o_data = self._occupants[to];
-               if o_data then
-                       log("debug", "%s sent private stanza to %s (%s)", from, to, o_data.jid);
-                       local jid = o_data.jid;
-                       -- TODO if stanza.name=='iq' and type=='get' and stanza.tags[1].attr.xmlns == 'vcard-temp' then jid = jid_bare(jid); end
-                       stanza.attr.to, stanza.attr.from = jid, current_nick;
-                       self:route_stanza(stanza);
-               elseif type ~= "error" and type ~= "result" then -- recipient not in room
-                       origin.send(st.error_reply(stanza, "cancel", "item-not-found", "Recipient not in room"));
-               end
-       end
-end
-
-function room_mt:handle_form(origin, stanza)
-       if self:get_affiliation(stanza.attr.from) ~= "owner" then origin.send(st.error_reply(stanza, "auth", "forbidden")); return; end
-       if stanza.attr.type == "get" then
-               local title = "Configuration for "..self.jid;
-               origin.send(st.reply(stanza):query("http://jabber.org/protocol/muc#owner")
-                       :tag("x", {xmlns='jabber:x:data', type='form'})
-                               :tag("title"):text(title):up()
-                               :tag("instructions"):text(title):up()
-                               :tag("field", {type='hidden', var='FORM_TYPE'}):tag("value"):text("http://jabber.org/protocol/muc#roomconfig"):up():up()
-                               :tag("field", {type='boolean', label='Make Room Persistent?', var='muc#roomconfig_persistentroom'})
-                                       :tag("value"):text(self._data.persistent and "1" or "0"):up()
-                               :up()
-                               :tag("field", {type='boolean', label='Make Room Publicly Searchable?', var='muc#roomconfig_publicroom'})
-                                       :tag("value"):text(self._data.hidden and "0" or "1"):up()
-                               :up()
-               );
-       elseif stanza.attr.type == "set" then
-               local query = stanza.tags[1];
-               local form;
-               for _, tag in ipairs(query.tags) do if tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then form = tag; break; end end
-               if not form then origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); return; end
-               if form.attr.type == "cancel" then origin.send(st.reply(stanza)); return; end
-               if form.attr.type ~= "submit" then origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end
-               local fields = {};
-               for _, field in pairs(form.tags) do
-                       if field.name == "field" and field.attr.var and field.tags[1].name == "value" and #field.tags[1].tags == 0 then
-                               fields[field.attr.var] = field.tags[1][1] or "";
-                       end
-               end
-               if fields.FORM_TYPE ~= "http://jabber.org/protocol/muc#roomconfig" then origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end
-
-               local persistent = fields['muc#roomconfig_persistentroom'];
-               if persistent == "0" or persistent == "false" then persistent = nil; elseif persistent == "1" or persistent == "true" then persistent = true;
-               else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end
-               self._data.persistent = persistent;
-               module:log("debug", "persistent=%s", tostring(persistent));
-
-               local public = fields['muc#roomconfig_publicroom'];
-               if public == "0" or public == "false" then public = nil; elseif public == "1" or public == "true" then public = true;
-               else origin.send(st.error_reply(stanza, "cancel", "bad-request")); return; end
-               self._data.hidden = not public and true or nil;
-
-               if self.save then self:save(true); end
-               origin.send(st.reply(stanza));
-       end
-end
-
-function room_mt:handle_to_room(origin, stanza) -- presence changes and groupchat messages, along with disco/etc
-       local type = stanza.attr.type;
-       local xmlns = stanza.tags[1] and stanza.tags[1].attr.xmlns;
-       if stanza.name == "iq" then
-               if xmlns == "http://jabber.org/protocol/disco#info" and type == "get" then
-                       origin.send(room_get_disco_info(self, stanza));
-               elseif xmlns == "http://jabber.org/protocol/disco#items" and type == "get" then
-                       origin.send(room_get_disco_items(self, stanza));
-               elseif xmlns == "http://jabber.org/protocol/muc#admin" then
-                       local actor = stanza.attr.from;
-                       local affiliation = self:get_affiliation(actor);
-                       local current_nick = self._jid_nick[actor];
-                       local role = current_nick and self._occupants[current_nick].role or self:get_default_role(affiliation);
-                       local item = stanza.tags[1].tags[1];
-                       if item and item.name == "item" then
-                               if type == "set" then
-                                       local callback = function() origin.send(st.reply(stanza)); end
-                                       if not item.attr.jid and item.attr.nick then -- COMPAT Workaround for Miranda sending 'nick' instead of 'jid' when changing affiliation
-                                               local occupant = self._occupants[self.jid.."/"..item.attr.nick];
-                                               if occupant then item.attr.jid = occupant.jid; end
-                                       end
-                                       if item.attr.affiliation and item.attr.jid and not item.attr.role then
-                                               local success, errtype, err = self:set_affiliation(actor, item.attr.jid, item.attr.affiliation, callback);
-                                               if not success then origin.send(st.error_reply(stanza, errtype, err)); end
-                                       elseif item.attr.role and item.attr.nick and not item.attr.affiliation then
-                                               local success, errtype, err = self:set_role(actor, self.jid.."/"..item.attr.nick, item.attr.role, callback);
-                                               if not success then origin.send(st.error_reply(stanza, errtype, err)); end
-                                       else
-                                               origin.send(st.error_reply(stanza, "cancel", "bad-request"));
-                                       end
-                               elseif type == "get" then
-                                       local _aff = item.attr.affiliation;
-                                       local _rol = item.attr.role;
-                                       if _aff and not _rol then
-                                               if affiliation == "owner" or (affiliation == "admin" and _aff ~= "owner" and _aff ~= "admin") then
-                                                       local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin");
-                                                       for jid, affiliation in pairs(self._affiliations) do
-                                                               if affiliation == _aff then
-                                                                       reply:tag("item", {affiliation = _aff, jid = jid}):up();
-                                                               end
-                                                       end
-                                                       origin.send(reply);
-                                               else
-                                                       origin.send(st.error_reply(stanza, "auth", "forbidden"));
-                                               end
-                                       elseif _rol and not _aff then
-                                               if role == "moderator" then
-                                                       -- TODO allow admins and owners not in room? Provide read-only access to everyone who can see the participants anyway?
-                                                       if _rol == "none" then _rol = nil; end
-                                                       local reply = st.reply(stanza):query("http://jabber.org/protocol/muc#admin");
-                                                       for nick, occupant in pairs(self._occupants) do
-                                                               if occupant.role == _rol then
-                                                                       reply:tag("item", {nick = nick, role = _rol or "none", affiliation = occupant.affiliation or "none", jid = occupant.jid}):up();
-                                                               end
-                                                       end
-                                                       origin.send(reply);
-                                               else
-                                                       origin.send(st.error_reply(stanza, "auth", "forbidden"));
-                                               end
-                                       else
-                                               origin.send(st.error_reply(stanza, "cancel", "bad-request"));
-                                       end
-                               end
-                       elseif type == "set" or type == "get" then
-                               origin.send(st.error_reply(stanza, "cancel", "bad-request"));
-                       end
-               elseif xmlns == "http://jabber.org/protocol/muc#owner" and (type == "get" or type == "set") and stanza.tags[1].name == "query" then
-                       self:handle_form(origin, stanza);
-               elseif type == "set" or type == "get" then
-                       origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
-               end
-       elseif stanza.name == "message" and type == "groupchat" then
-               local from, to = stanza.attr.from, stanza.attr.to;
-               local room = jid_bare(to);
-               local current_nick = self._jid_nick[from];
-               if not current_nick then -- not in room
-                       origin.send(st.error_reply(stanza, "cancel", "not-acceptable"));
-               else
-                       local from = stanza.attr.from;
-                       stanza.attr.from = current_nick;
-                       local subject = getText(stanza, {"subject"});
-                       if subject then
-                               self:set_subject(current_nick, subject); -- TODO use broadcast_message_stanza
-                       else
-                               self:broadcast_message(stanza, true);
-                       end
-               end
-       elseif stanza.name == "presence" then -- hack - some buggy clients send presence updates to the room rather than their nick
-               local to = stanza.attr.to;
-               local current_nick = self._jid_nick[stanza.attr.from];
-               if current_nick then
-                       stanza.attr.to = current_nick;
-                       self:handle_to_occupant(origin, stanza);
-                       stanza.attr.to = to;
-               elseif type ~= "error" and type ~= "result" then
-                       origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
-               end
-       elseif stanza.name == "message" and not stanza.attr.type and #stanza.tags == 1 and self._jid_nick[stanza.attr.from]
-               and stanza.tags[1].name == "x" and stanza.tags[1].attr.xmlns == "http://jabber.org/protocol/muc#user" and #stanza.tags[1].tags == 1
-               and stanza.tags[1].tags[1].name == "invite" and stanza.tags[1].tags[1].attr.to then
-               local _from, _to = stanza.attr.from, stanza.attr.to;
-               local _invitee = stanza.tags[1].tags[1].attr.to;
-               stanza.attr.from, stanza.attr.to = _to, _invitee;
-               stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = _from, nil;
-               self:route_stanza(stanza);
-               stanza.tags[1].tags[1].attr.from, stanza.tags[1].tags[1].attr.to = nil, _invitee;
-               stanza.attr.from, stanza.attr.to = _from, _to;
-       else
-               if type == "error" or type == "result" then return; end
-               origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
-       end
-end
-
-function room_mt:handle_stanza(origin, stanza)
-       local to_node, to_host, to_resource = jid_split(stanza.attr.to);
-       if to_resource then
-               self:handle_to_occupant(origin, stanza);
-       else
-               self:handle_to_room(origin, stanza);
-       end
-end
-
-function room_mt:route_stanza(stanza) end -- Replace with a routing function, e.g., function(room, stanza) core_route_stanza(origin, stanza); end
-
-function room_mt:get_affiliation(jid)
-       local node, host, resource = jid_split(jid);
-       local bare = node and node.."@"..host or host;
-       local result = self._affiliations[bare]; -- Affiliations are granted, revoked, and maintained based on the user's bare JID.
-       if not result and self._affiliations[host] == "outcast" then result = "outcast"; end -- host banned
-       return result;
-end
-function room_mt:set_affiliation(actor, jid, affiliation, callback)
-       jid = jid_bare(jid);
-       if affiliation == "none" then affiliation = nil; end
-       if affiliation and affiliation ~= "outcast" and affiliation ~= "owner" and affiliation ~= "admin" and affiliation ~= "member" then
-               return nil, "modify", "not-acceptable";
-       end
-       if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end
-       if jid_bare(actor) == jid then return nil, "cancel", "not-allowed"; end
-       self._affiliations[jid] = affiliation;
-       local role = self:get_default_role(affiliation);
-       local p = st.presence()
-               :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
-                       :tag("item", {affiliation=affiliation or "none", role=role or "none"}):up();
-       local x = p.tags[1];
-       local item = x.tags[1];
-       if not role then -- getting kicked
-               p.attr.type = "unavailable";
-               if affiliation == "outcast" then
-                       x:tag("status", {code="301"}):up(); -- banned
-               else
-                       x:tag("status", {code="321"}):up(); -- affiliation change
-               end
-       end
-       local modified_nicks = {};
-       for nick, occupant in pairs(self._occupants) do
-               if jid_bare(occupant.jid) == jid then
-                       if not role then -- getting kicked
-                               self._occupants[nick] = nil;
-                       else
-                               t_insert(modified_nicks, nick);
-                               occupant.affiliation, occupant.role = affiliation, role;
-                       end
-                       p.attr.from = nick;
-                       for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick
-                               if not role then self._jid_nick[jid] = nil; end
-                               p.attr.to = jid;
-                               self:route_stanza(p);
-                       end
-               end
-       end
-       if self.save then self:save(); end
-       if callback then callback(); end
-       for _, nick in ipairs(modified_nicks) do
-               p.attr.from = nick;
-               self:broadcast_except_nick(p, nick);
-       end
-       return true;
-end
-
-function room_mt:get_role(nick)
-       local session = self._occupants[nick];
-       return session and session.role or nil;
-end
-function room_mt:set_role(actor, nick, role, callback)
-       if role == "none" then role = nil; end
-       if role and role ~= "moderator" and role ~= "participant" and role ~= "visitor" then return nil, "modify", "not-acceptable"; end
-       if self:get_affiliation(actor) ~= "owner" then return nil, "cancel", "not-allowed"; end
-       local occupant = self._occupants[nick];
-       if not occupant then return nil, "modify", "not-acceptable"; end
-       if occupant.affiliation == "owner" or occupant.affiliation == "admin" then return nil, "cancel", "not-allowed"; end
-       local p = st.presence({from = nick})
-               :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"})
-                       :tag("item", {affiliation=occupant.affiliation or "none", nick=nick, role=role or "none"}):up();
-       if not role then -- kick
-               p.attr.type = "unavailable";
-               self._occupants[nick] = nil;
-               for jid in pairs(occupant.sessions) do -- remove for all sessions of the nick
-                       self._jid_nick[jid] = nil;
-               end
-               p:tag("status", {code = "307"}):up();
-       else
-               occupant.role = role;
-       end
-       for jid in pairs(occupant.sessions) do -- send to all sessions of the nick
-               p.attr.to = jid;
-               self:route_stanza(p);
-       end
-       if callback then callback(); end
-       self:broadcast_except_nick(p, nick);
-       return true;
-end
-
-local _M = {}; -- module "muc"
-
-function _M.new_room(jid)
-       return setmetatable({
-               jid = jid;
-               _jid_nick = {};
-               _occupants = {};
-               _data = {};
-               _affiliations = {};
-       }, room_mt);
-end
-
-return _M;
-
---[[function get_disco_info(stanza)
-       return st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#info")
-               :tag("identity", {category='conference', type='text', name=muc_name}):up()
-               :tag("feature", {var="http://jabber.org/protocol/muc"}); -- TODO cache disco reply
-end
-function get_disco_items(stanza)
-       local reply = st.iq({type='result', id=stanza.attr.id, from=muc_domain, to=stanza.attr.from}):query("http://jabber.org/protocol/disco#items");
-       for room in pairs(rooms_info:get()) do
-               reply:tag("item", {jid=room, name=rooms_info:get(room, "name")}):up();
-       end
-       return reply; -- TODO cache disco reply
-end]]
-
---[[function handle_to_domain(origin, stanza)
-       local type = stanza.attr.type;
-       if type == "error" or type == "result" then return; end
-       if stanza.name == "iq" and type == "get" then
-               local xmlns = stanza.tags[1].attr.xmlns;
-               if xmlns == "http://jabber.org/protocol/disco#info" then
-                       origin.send(get_disco_info(stanza));
-               elseif xmlns == "http://jabber.org/protocol/disco#items" then
-                       origin.send(get_disco_items(stanza));
-               else
-                       origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- TODO disco/etc
-               end
-       else
-               origin.send(st.error_reply(stanza, "cancel", "service-unavailable", "The muc server doesn't deal with messages and presence directed at it"));
-       end
-end
-
-register_component(muc_domain, function(origin, stanza)
-       local to_node, to_host, to_resource = jid_split(stanza.attr.to);
-       if to_resource and not to_node then
-               if type == "error" or type == "result" then return; end
-               origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); -- host/resource
-       elseif to_resource then
-               handle_to_occupant(origin, stanza);
-       elseif to_node then
-               handle_to_room(origin, stanza)
-       else -- to the main muc domain
-               if type == "error" or type == "result" then return; end
-               handle_to_domain(origin, stanza);
-       end
-end);]]
-
---[[module.unload = function()
-       deregister_component(muc_domain);
-end
-module.save = function()
-       return {rooms = rooms.data; jid_nick = jid_nick.data; rooms_info = rooms_info.data; persist_list = persist_list};
-end
-module.restore = function(data)
-       rooms.data, jid_nick.data, rooms_info.data, persist_list =
-       data.rooms or {}, data.jid_nick or {}, data.rooms_info or {}, data.persist_list or {};
-end]]