diff options
Diffstat (limited to 'plugins/muc/mod_muc.lua')
| -rw-r--r-- | plugins/muc/mod_muc.lua | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/plugins/muc/mod_muc.lua b/plugins/muc/mod_muc.lua new file mode 100644 index 00000000..7861092c --- /dev/null +++ b/plugins/muc/mod_muc.lua @@ -0,0 +1,229 @@ +-- Prosody IM +-- Copyright (C) 2008-2010 Matthew Wild +-- Copyright (C) 2008-2010 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 = module:get_option("name"); +if type(muc_name) ~= "string" then muc_name = "Prosody Chatrooms"; end +local restrict_room_creation = module:get_option("restrict_room_creation"); +if restrict_room_creation then + if restrict_room_creation == true then + restrict_room_creation = "admin"; + elseif restrict_room_creation ~= "admin" and restrict_room_creation ~= "local" then + restrict_room_creation = nil; + end +end +local muclib = module:require "muc"; +local muc_new_room = muclib.new_room; +local jid_split = require "util.jid".split; +local jid_bare = require "util.jid".bare; +local st = require "util.stanza"; +local uuid_gen = require "util.uuid".generate; +local um_is_admin = require "core.usermanager".is_admin; +local hosts = prosody.hosts; + +rooms = {}; +local rooms = rooms; +local persistent_rooms_storage = module:open_store("persistent"); +local persistent_rooms = persistent_rooms_storage:get() or {}; +local room_configs = module:open_store("config"); + +-- Configurable options +muclib.set_max_history_length(module:get_option_number("max_history_messages")); + +local function is_admin(jid) + return um_is_admin(jid, module.host); +end + +local _set_affiliation = muc_new_room.room_mt.set_affiliation; +local _get_affiliation = muc_new_room.room_mt.get_affiliation; +function muclib.room_mt:get_affiliation(jid) + if is_admin(jid) then return "owner"; end + return _get_affiliation(self, jid); +end +function muclib.room_mt:set_affiliation(actor, jid, affiliation, callback, reason) + if is_admin(jid) then return nil, "modify", "not-acceptable"; end + return _set_affiliation(self, actor, jid, affiliation, callback, reason); +end + +local function room_route_stanza(room, stanza) module:send(stanza); end +local function room_save(room, forced) + local node = jid_split(room.jid); + persistent_rooms[room.jid] = room._data.persistent; + if room._data.persistent then + local history = room._data.history; + room._data.history = nil; + local data = { + jid = room.jid; + _data = room._data; + _affiliations = room._affiliations; + }; + room_configs:set(node, data); + room._data.history = history; + elseif forced then + room_configs:set(node, nil); + if not next(room._occupants) then -- Room empty + rooms[room.jid] = nil; + end + end + if forced then persistent_rooms_storage:set(nil, persistent_rooms); end +end + +function create_room(jid) + local room = muc_new_room(jid); + room.route_stanza = room_route_stanza; + room.save = room_save; + rooms[jid] = room; + return room; +end + +local persistent_errors = false; +for jid in pairs(persistent_rooms) do + local node = jid_split(jid); + local data = room_configs:get(node); + if data then + local room = create_room(jid); + room._data = data._data; + room._affiliations = data._affiliations; + else -- missing room data + persistent_rooms[jid] = nil; + module:log("error", "Missing data for room '%s', removing from persistent room list", jid); + persistent_errors = true; + end +end +if persistent_errors then persistent_rooms_storage:set(nil, persistent_rooms); 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:is_hidden() then + reply:tag("item", {jid=jid, name=room:get_name()}):up(); + end + end + return reply; -- TODO cache disco reply +end + +local function handle_to_domain(event) + local origin, stanza = event.origin, event.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; + local node = stanza.tags[1].attr.node; + if xmlns == "http://jabber.org/protocol/disco#info" and not node then + origin.send(get_disco_info(stanza)); + elseif xmlns == "http://jabber.org/protocol/disco#items" and not node 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 + return true; +end + +function stanza_handler(event) + local origin, stanza = event.origin, event.stanza; + local bare = jid_bare(stanza.attr.to); + local room = rooms[bare]; + if not room then + if stanza.name ~= "presence" then + origin.send(st.error_reply(stanza, "cancel", "item-not-found")); + return true; + end + if not(restrict_room_creation) or + (restrict_room_creation == "admin" and is_admin(stanza.attr.from)) or + (restrict_room_creation == "local" and select(2, jid_split(stanza.attr.from)) == module.host:gsub("^[^%.]+%.", "")) then + room = create_room(bare); + end + end + if room then + room:handle_stanza(origin, stanza); + if not next(room._occupants) and not persistent_rooms[room.jid] then -- empty, non-persistent room + rooms[bare] = nil; -- discard room + end + else + origin.send(st.error_reply(stanza, "cancel", "not-allowed")); + end + return true; +end +module:hook("iq/bare", stanza_handler, -1); +module:hook("message/bare", stanza_handler, -1); +module:hook("presence/bare", stanza_handler, -1); +module:hook("iq/full", stanza_handler, -1); +module:hook("message/full", stanza_handler, -1); +module:hook("presence/full", stanza_handler, -1); +module:hook("iq/host", handle_to_domain, -1); +module:hook("message/host", handle_to_domain, -1); +module:hook("presence/host", handle_to_domain, -1); + +hosts[module.host].send = function(stanza) -- FIXME do a generic fix + if stanza.attr.type == "result" or stanza.attr.type == "error" then + module:send(stanza); + else error("component.send only supports result and error stanzas at the moment"); end +end + +hosts[module:get_host()].muc = { rooms = rooms }; + +local saved = false; +module.save = function() + saved = true; + return {rooms = rooms}; +end +module.restore = function(data) + for jid, oldroom in pairs(data.rooms or {}) do + local room = create_room(jid); + room._jid_nick = oldroom._jid_nick; + room._occupants = oldroom._occupants; + room._data = oldroom._data; + room._affiliations = oldroom._affiliations; + end + hosts[module:get_host()].muc = { rooms = rooms }; +end + +function shutdown_room(room, stanza) + for nick, occupant in pairs(room._occupants) do + stanza.attr.from = nick; + for jid in pairs(occupant.sessions) do + stanza.attr.to = jid; + room:_route_stanza(stanza); + room._jid_nick[jid] = nil; + end + room._occupants[nick] = nil; + end +end +function shutdown_component() + if not saved then + local stanza = st.presence({type = "unavailable"}) + :tag("x", {xmlns = "http://jabber.org/protocol/muc#user"}) + :tag("item", { affiliation='none', role='none' }):up(); + for roomjid, room in pairs(rooms) do + shutdown_room(room, stanza); + end + shutdown_room(host_room, stanza); + end +end +module.unload = shutdown_component; +module:hook_global("server-stopping", shutdown_component); |