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-- 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 muclib = module:require "muc";
room_mt = muclib.room_mt; -- Yes, global.
local iterators = require "util.iterators";
local jid_split = require "util.jid".split;
local jid_bare = require "util.jid".bare;
local st = require "util.stanza";
local um_is_admin = require "core.usermanager".is_admin;
local rooms = module:shared "rooms";
module:depends("disco");
module:add_identity("conference", "text", module:get_option_string("name", "Prosody Chatrooms"));
module:add_feature("http://jabber.org/protocol/muc");
module:depends "muc_unique"
module:require "muc/lock";
local function is_admin(jid)
return um_is_admin(jid, module.host);
end
do -- Monkey patch to make server admins room owners
local _get_affiliation = room_mt.get_affiliation;
function room_mt:get_affiliation(jid)
if is_admin(jid) then return "owner"; end
return _get_affiliation(self, jid);
end
local _set_affiliation = room_mt.set_affiliation;
function room_mt:set_affiliation(actor, jid, ...)
if is_admin(jid) then return nil, "modify", "not-acceptable"; end
return _set_affiliation(self, actor, jid, ...);
end
end
function track_room(room)
rooms[room.jid] = room;
end
function forget_room(jid)
rooms[jid] = nil;
end
function get_room_from_jid(room_jid)
return rooms[room_jid]
end
function each_room()
return iterators.values(rooms);
end
do -- Persistent rooms
local persistent = module:require "muc/persistent";
local persistent_rooms_storage = module:open_store("persistent");
local persistent_rooms = persistent_rooms_storage:get() or {};
local room_configs = module:open_store("config");
local function room_save(room, forced)
local node = jid_split(room.jid);
local is_persistent = persistent.get(room);
persistent_rooms[room.jid] = is_persistent;
if is_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
-- When room is created, over-ride 'save' method
module:hook("muc-room-pre-create", function(event)
event.room.save = room_save;
end, 1000);
-- Automatically destroy empty non-persistent rooms
module:hook("muc-occupant-left",function(event)
local room = event.room
if not room:has_occupant() and not persistent.get(room) then -- empty, non-persistent room
module:fire_event("muc-room-destroyed", { room = room });
end
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 = muclib.new_room(jid);
room._data = data._data;
room._affiliations = data._affiliations;
track_room(room);
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
end
module:hook("host-disco-items", function(event)
local reply = event.reply;
module:log("debug", "host-disco-items called");
for room in each_room() do
if not room:get_hidden() then
reply:tag("item", {jid=room.jid, name=room:get_name()}):up();
end
end
end);
module:hook("muc-room-pre-create", function(event)
track_room(event.room);
end, -1000);
module:hook("muc-room-destroyed",function(event)
local room = event.room
forget_room(room.jid)
end)
do
local restrict_room_creation = module:get_option("restrict_room_creation");
if restrict_room_creation == true then
restrict_room_creation = "admin";
end
if restrict_room_creation then
local host_suffix = module.host:gsub("^[^%.]+%.", "");
module:hook("muc-room-pre-create", function(event)
local origin, stanza = event.origin, event.stanza;
local user_jid = stanza.attr.from;
if not is_admin(user_jid) and not (
restrict_room_creation == "local" and
select(2, jid_split(user_jid)) == host_suffix
) then
origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
return true;
end
end);
end
end
for event_name, method in pairs {
-- Normal room interactions
["iq-get/bare/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ;
["iq-get/bare/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ;
["iq-set/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ;
["iq-get/bare/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ;
["iq-set/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ;
["iq-get/bare/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ;
["message/bare"] = "handle_message_to_room" ;
["presence/bare"] = "handle_presence_to_room" ;
-- Host room
["iq-get/host/http://jabber.org/protocol/disco#info:query"] = "handle_disco_info_get_query" ;
["iq-get/host/http://jabber.org/protocol/disco#items:query"] = "handle_disco_items_get_query" ;
["iq-set/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_set_command" ;
["iq-get/host/http://jabber.org/protocol/muc#admin:query"] = "handle_admin_query_get_command" ;
["iq-set/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_set_to_room" ;
["iq-get/host/http://jabber.org/protocol/muc#owner:query"] = "handle_owner_query_get_to_room" ;
["message/host"] = "handle_message_to_room" ;
["presence/host"] = "handle_presence_to_room" ;
-- Direct to occupant (normal rooms and host room)
["presence/full"] = "handle_presence_to_occupant" ;
["iq/full"] = "handle_iq_to_occupant" ;
["message/full"] = "handle_message_to_occupant" ;
} do
module:hook(event_name, function (event)
local origin, stanza = event.origin, event.stanza;
local room_jid = jid_bare(stanza.attr.to);
local room = get_room_from_jid(room_jid);
if room == nil then
-- Watch presence to create rooms
if stanza.attr.type == nil and stanza.name == "presence" then
room = muclib.new_room(room_jid);
else
origin.send(st.error_reply(stanza, "cancel", "not-allowed"));
return true;
end
end
return room[method](room, origin, stanza);
end, -2)
end
function shutdown_component()
local x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"})
:tag("status", { code = "332"}):up();
for room in each_room() do
room:clear(x);
end
end
module:hook_global("server-stopping", shutdown_component);
do -- Ad-hoc commands
module:depends "adhoc";
local t_concat = table.concat;
local adhoc_new = module:require "adhoc".new;
local adhoc_initial = require "util.adhoc".new_initial_data_form;
local array = require "util.array";
local dataforms_new = require "util.dataforms".new;
local destroy_rooms_layout = dataforms_new {
title = "Destroy rooms";
instructions = "Select the rooms to destroy";
{ name = "FORM_TYPE", type = "hidden", value = "http://prosody.im/protocol/muc#destroy" };
{ name = "rooms", type = "list-multi", required = true, label = "Rooms to destroy:"};
};
local destroy_rooms_handler = adhoc_initial(destroy_rooms_layout, function()
return { rooms = array.collect(each_room):pluck("jid"):sort(); };
end, function(fields, errors)
if errors then
local errmsg = {};
for name, err in pairs(errors) do
errmsg[#errmsg + 1] = name .. ": " .. err;
end
return { status = "completed", error = { message = t_concat(errmsg, "\n") } };
end
for _, room in ipairs(fields.rooms) do
get_room_from_jid(room):destroy();
end
return { status = "completed", info = "The following rooms were destroyed:\n"..t_concat(fields.rooms, "\n") };
end);
local destroy_rooms_desc = adhoc_new("Destroy Rooms", "http://prosody.im/protocol/muc#destroy", destroy_rooms_handler, "admin");
module:provides("adhoc", destroy_rooms_desc);
end
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