908 lines
30 KiB
Erlang
908 lines
30 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_muc_odbc.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose : MUC support (XEP-0045)
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%%% Created : 19 Mar 2003 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2012 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License
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%%% along with this program; if not, write to the Free Software
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%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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%%% 02111-1307 USA
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_muc_odbc).
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-author('alexey@process-one.net').
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-behaviour(gen_server).
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-behaviour(gen_mod).
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%% API
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-export([start_link/2,
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start/2,
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stop/1,
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room_destroyed/4,
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store_room/4,
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restore_room/3,
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forget_room/3,
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create_room/5,
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process_iq_disco_items/4,
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broadcast_service_message/2,
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encode_opts/1,
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decode_opts/1,
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can_use_nick/4]).
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%% gen_server callbacks
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-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
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terminate/2, code_change/3]).
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-include("ejabberd.hrl").
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-include("jlib.hrl").
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-record(muc_online_room, {name_host, pid}).
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-record(state, {host,
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server_host,
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access,
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history_size,
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default_room_opts,
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room_shaper}).
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-define(PROCNAME, ejabberd_mod_muc).
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%%====================================================================
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%% API
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%%====================================================================
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%%--------------------------------------------------------------------
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%% Function: start_link() -> {ok,Pid} | ignore | {error,Error}
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%% Description: Starts the server
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%%--------------------------------------------------------------------
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start_link(Host, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:start_link({local, Proc}, ?MODULE, [Host, Opts], []).
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start(Host, Opts) ->
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start_supervisor(Host),
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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ChildSpec =
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{Proc,
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{?MODULE, start_link, [Host, Opts]},
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temporary,
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1000,
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worker,
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[?MODULE]},
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supervisor:start_child(ejabberd_sup, ChildSpec).
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stop(Host) ->
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stop_supervisor(Host),
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:call(Proc, stop),
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supervisor:delete_child(ejabberd_sup, Proc).
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%% This function is called by a room in three situations:
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%% A) The owner of the room destroyed it
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%% B) The only participant of a temporary room leaves it
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%% C) mod_muc:stop was called, and each room is being terminated
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%% In this case, the mod_muc process died before the room processes
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%% So the message sending must be catched
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room_destroyed(Host, Room, Pid, ServerHost) ->
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catch gen_mod:get_module_proc(ServerHost, ?PROCNAME) !
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{room_destroyed, {Room, Host}, Pid},
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ok.
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%% @doc Create a room.
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%% If Opts = default, the default room options are used.
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%% Else use the passed options as defined in mod_muc_room.
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create_room(Host, Name, From, Nick, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:call(Proc, {create, Name, From, Nick, Opts}).
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store_room(ServerHost, Host, Name, Opts) ->
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SName = ejabberd_odbc:escape(Name),
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SHost = ejabberd_odbc:escape(Host),
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LServer = jlib:nameprep(ServerHost),
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F = fun() ->
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update_t(
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"muc_room",
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["name", "host", "opts"],
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[SName, SHost, encode_opts(Opts)],
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["name='", SName, "' and host='", SHost, "'"])
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end,
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ejabberd_odbc:sql_transaction(LServer, F).
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restore_room(ServerHost, Host, Name) ->
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SName = ejabberd_odbc:escape(Name),
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SHost = ejabberd_odbc:escape(Host),
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LServer = jlib:nameprep(ServerHost),
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case catch ejabberd_odbc:sql_query(
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LServer, ["select opts from muc_room where name='",
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SName, "' and host='", SHost, "';"]) of
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{selected, ["opts"], [{Opts}]} ->
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decode_opts(Opts);
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_ ->
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error
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end.
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forget_room(ServerHost, Host, Name) ->
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SName = ejabberd_odbc:escape(Name),
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SHost = ejabberd_odbc:escape(Host),
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LServer = jlib:nameprep(ServerHost),
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F = fun() ->
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ejabberd_odbc:sql_query_t(
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["delete from muc_room where name='",
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SName, "' and host='", SHost, "';"])
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end,
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ejabberd_odbc:sql_transaction(LServer, F).
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process_iq_disco_items(Host, From, To, #iq{lang = Lang} = IQ) ->
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Rsm = jlib:rsm_decode(IQ),
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Res = IQ#iq{type = result,
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sub_el = [{xmlelement, "query",
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[{"xmlns", ?NS_DISCO_ITEMS}],
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iq_disco_items(Host, From, Lang, Rsm)}]},
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ejabberd_router:route(To,
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From,
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jlib:iq_to_xml(Res)).
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can_use_nick(_ServerHost, _Host, _JID, "") ->
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false;
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can_use_nick(ServerHost, Host, JID, Nick) ->
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SJID = jlib:jid_to_string(
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jlib:jid_tolower(
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jlib:jid_remove_resource(JID))),
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SNick = ejabberd_odbc:escape(Nick),
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SHost = ejabberd_odbc:escape(Host),
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LServer = jlib:nameprep(ServerHost),
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case catch ejabberd_odbc:sql_query(
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LServer, ["select jid from muc_registered ",
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"where nick='", SNick, "' and host='",
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SHost, "';"]) of
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{selected, ["jid"], [{SJID1}]} ->
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SJID == SJID1;
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_ ->
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true
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end.
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%%====================================================================
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%% gen_server callbacks
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%%====================================================================
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%%--------------------------------------------------------------------
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%% Function: init(Args) -> {ok, State} |
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%% {ok, State, Timeout} |
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%% ignore |
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%% {stop, Reason}
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%% Description: Initiates the server
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%%--------------------------------------------------------------------
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init([Host, Opts]) ->
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mnesia:create_table(muc_online_room,
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[{ram_copies, [node()]},
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{attributes, record_info(fields, muc_online_room)}]),
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mnesia:add_table_copy(muc_online_room, node(), ram_copies),
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catch ets:new(muc_online_users, [bag, named_table, public, {keypos, 2}]),
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MyHost = gen_mod:get_opt_host(Host, Opts, "conference.@HOST@"),
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clean_table_from_bad_node(node(), MyHost),
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mnesia:subscribe(system),
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Access = gen_mod:get_opt(access, Opts, all),
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AccessCreate = gen_mod:get_opt(access_create, Opts, all),
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AccessAdmin = gen_mod:get_opt(access_admin, Opts, none),
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AccessPersistent = gen_mod:get_opt(access_persistent, Opts, all),
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HistorySize = gen_mod:get_opt(history_size, Opts, 20),
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DefRoomOpts = gen_mod:get_opt(default_room_options, Opts, []),
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RoomShaper = gen_mod:get_opt(room_shaper, Opts, none),
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ejabberd_router:register_route(MyHost),
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load_permanent_rooms(MyHost, Host,
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{Access, AccessCreate, AccessAdmin, AccessPersistent},
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HistorySize,
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RoomShaper),
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{ok, #state{host = MyHost,
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server_host = Host,
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access = {Access, AccessCreate, AccessAdmin, AccessPersistent},
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default_room_opts = DefRoomOpts,
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history_size = HistorySize,
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room_shaper = RoomShaper}}.
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%%--------------------------------------------------------------------
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%% Function: %% handle_call(Request, From, State) -> {reply, Reply, State} |
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%% {reply, Reply, State, Timeout} |
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%% {noreply, State} |
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%% {noreply, State, Timeout} |
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%% {stop, Reason, Reply, State} |
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%% {stop, Reason, State}
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%% Description: Handling call messages
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%%--------------------------------------------------------------------
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handle_call(stop, _From, State) ->
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{stop, normal, ok, State};
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handle_call({create, Room, From, Nick, Opts},
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_From,
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#state{host = Host,
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server_host = ServerHost,
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access = Access,
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default_room_opts = DefOpts,
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history_size = HistorySize,
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room_shaper = RoomShaper} = State) ->
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?DEBUG("MUC: create new room '~s'~n", [Room]),
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NewOpts = case Opts of
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default -> DefOpts;
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_ -> Opts
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end,
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{ok, Pid} = mod_muc_room:start(
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Host, ServerHost, Access,
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Room, HistorySize,
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RoomShaper, From,
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Nick, NewOpts, ?MODULE),
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register_room(Host, Room, Pid),
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{reply, ok, State}.
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%%--------------------------------------------------------------------
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%% Function: handle_cast(Msg, State) -> {noreply, State} |
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%% {noreply, State, Timeout} |
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%% {stop, Reason, State}
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%% Description: Handling cast messages
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%%--------------------------------------------------------------------
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handle_cast(_Msg, State) ->
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{noreply, State}.
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%%--------------------------------------------------------------------
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%% Function: handle_info(Info, State) -> {noreply, State} |
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%% {noreply, State, Timeout} |
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%% {stop, Reason, State}
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%% Description: Handling all non call/cast messages
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%%--------------------------------------------------------------------
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handle_info({route, From, To, Packet},
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#state{host = Host,
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server_host = ServerHost,
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access = Access,
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default_room_opts = DefRoomOpts,
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history_size = HistorySize,
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room_shaper = RoomShaper} = State) ->
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case catch do_route(Host, ServerHost, Access, HistorySize, RoomShaper,
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From, To, Packet, DefRoomOpts) of
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{'EXIT', Reason} ->
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?ERROR_MSG("~p", [Reason]);
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_ ->
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ok
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end,
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{noreply, State};
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handle_info({room_destroyed, RoomHost, Pid}, State) ->
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F = fun() ->
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mnesia:delete_object(#muc_online_room{name_host = RoomHost,
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pid = Pid})
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end,
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mnesia:transaction(F),
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{noreply, State};
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handle_info({mnesia_system_event, {mnesia_down, Node}}, State) ->
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clean_table_from_bad_node(Node),
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{noreply, State};
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handle_info(_Info, State) ->
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{noreply, State}.
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%%--------------------------------------------------------------------
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%% Function: terminate(Reason, State) -> void()
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%% Description: This function is called by a gen_server when it is about to
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%% terminate. It should be the opposite of Module:init/1 and do any necessary
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%% cleaning up. When it returns, the gen_server terminates with Reason.
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%% The return value is ignored.
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%%--------------------------------------------------------------------
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terminate(_Reason, State) ->
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ejabberd_router:unregister_route(State#state.host),
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ok.
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%%--------------------------------------------------------------------
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%% Func: code_change(OldVsn, State, Extra) -> {ok, NewState}
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%% Description: Convert process state when code is changed
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%%--------------------------------------------------------------------
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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%%--------------------------------------------------------------------
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%%% Internal functions
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%%--------------------------------------------------------------------
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start_supervisor(Host) ->
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Proc = gen_mod:get_module_proc(Host, ejabberd_mod_muc_sup),
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ChildSpec =
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{Proc,
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{ejabberd_tmp_sup, start_link,
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[Proc, mod_muc_room]},
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permanent,
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infinity,
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supervisor,
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[ejabberd_tmp_sup]},
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supervisor:start_child(ejabberd_sup, ChildSpec).
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stop_supervisor(Host) ->
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Proc = gen_mod:get_module_proc(Host, ejabberd_mod_muc_sup),
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supervisor:terminate_child(ejabberd_sup, Proc),
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supervisor:delete_child(ejabberd_sup, Proc).
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do_route(Host, ServerHost, Access, HistorySize, RoomShaper,
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From, To, Packet, DefRoomOpts) ->
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{AccessRoute, _AccessCreate, _AccessAdmin, _AccessPersistent} = Access,
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case acl:match_rule(ServerHost, AccessRoute, From) of
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allow ->
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do_route1(Host, ServerHost, Access, HistorySize, RoomShaper,
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From, To, Packet, DefRoomOpts);
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_ ->
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{xmlelement, _Name, Attrs, _Els} = Packet,
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Lang = xml:get_attr_s("xml:lang", Attrs),
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ErrText = "Access denied by service policy",
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Err = jlib:make_error_reply(Packet,
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?ERRT_FORBIDDEN(Lang, ErrText)),
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ejabberd_router:route_error(To, From, Err, Packet)
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end.
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do_route1(Host, ServerHost, Access, HistorySize, RoomShaper,
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From, To, Packet, DefRoomOpts) ->
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{_AccessRoute, AccessCreate, AccessAdmin, _AccessPersistent} = Access,
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{Room, _, Nick} = jlib:jid_tolower(To),
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{xmlelement, Name, Attrs, _Els} = Packet,
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case Room of
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"" ->
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case Nick of
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"" ->
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case Name of
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"iq" ->
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case jlib:iq_query_info(Packet) of
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#iq{type = get, xmlns = ?NS_DISCO_INFO = XMLNS,
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sub_el = _SubEl, lang = Lang} = IQ ->
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Info = ejabberd_hooks:run_fold(
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disco_info, ServerHost, [],
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[ServerHost, ?MODULE, "", ""]),
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Res = IQ#iq{type = result,
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sub_el = [{xmlelement, "query",
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[{"xmlns", XMLNS}],
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iq_disco_info(Lang)
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++Info}]},
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ejabberd_router:route(To,
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From,
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jlib:iq_to_xml(Res));
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#iq{type = get,
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xmlns = ?NS_DISCO_ITEMS} = IQ ->
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spawn(?MODULE,
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process_iq_disco_items,
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[Host, From, To, IQ]);
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#iq{type = get,
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xmlns = ?NS_REGISTER = XMLNS,
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lang = Lang,
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sub_el = _SubEl} = IQ ->
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Res = IQ#iq{type = result,
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sub_el =
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[{xmlelement, "query",
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[{"xmlns", XMLNS}],
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iq_get_register_info(
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ServerHost, Host, From, Lang)}]},
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ejabberd_router:route(To,
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From,
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jlib:iq_to_xml(Res));
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#iq{type = set,
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xmlns = ?NS_REGISTER = XMLNS,
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lang = Lang,
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sub_el = SubEl} = IQ ->
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case process_iq_register_set(
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ServerHost, Host, From, SubEl, Lang) of
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{result, IQRes} ->
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Res = IQ#iq{type = result,
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sub_el =
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[{xmlelement, "query",
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[{"xmlns", XMLNS}],
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IQRes}]},
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ejabberd_router:route(
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To, From, jlib:iq_to_xml(Res));
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{error, Error} ->
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Err = jlib:make_error_reply(
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Packet, Error),
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ejabberd_router:route(
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To, From, Err)
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end;
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#iq{type = get,
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xmlns = ?NS_VCARD = XMLNS,
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lang = Lang,
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sub_el = _SubEl} = IQ ->
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Res = IQ#iq{type = result,
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sub_el =
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[{xmlelement, "vCard",
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[{"xmlns", XMLNS}],
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iq_get_vcard(Lang)}]},
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ejabberd_router:route(To,
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From,
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jlib:iq_to_xml(Res));
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#iq{type = get,
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xmlns = ?NS_MUC_UNIQUE
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} = IQ ->
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Res = IQ#iq{type = result,
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sub_el =
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[{xmlelement, "unique",
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[{"xmlns", ?NS_MUC_UNIQUE}],
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[iq_get_unique(From)]}]},
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ejabberd_router:route(To,
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From,
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jlib:iq_to_xml(Res));
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#iq{} ->
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Err = jlib:make_error_reply(
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Packet,
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?ERR_FEATURE_NOT_IMPLEMENTED),
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ejabberd_router:route(To, From, Err);
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_ ->
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ok
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end;
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"message" ->
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case xml:get_attr_s("type", Attrs) of
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"error" ->
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ok;
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_ ->
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case acl:match_rule(ServerHost, AccessAdmin, From) of
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allow ->
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Msg = xml:get_path_s(
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Packet,
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[{elem, "body"}, cdata]),
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broadcast_service_message(Host, Msg);
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_ ->
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Lang = xml:get_attr_s("xml:lang", Attrs),
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ErrText = "Only service administrators "
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"are allowed to send service messages",
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Err = jlib:make_error_reply(
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Packet,
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?ERRT_FORBIDDEN(Lang, ErrText)),
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ejabberd_router:route(
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To, From, Err)
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end
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end;
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"presence" ->
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ok
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end;
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_ ->
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case xml:get_attr_s("type", Attrs) of
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"error" ->
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ok;
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"result" ->
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ok;
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_ ->
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Err = jlib:make_error_reply(
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Packet, ?ERR_ITEM_NOT_FOUND),
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ejabberd_router:route(To, From, Err)
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end
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end;
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_ ->
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case mnesia:dirty_read(muc_online_room, {Room, Host}) of
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[] ->
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|
Type = xml:get_attr_s("type", Attrs),
|
|
case {Name, Type} of
|
|
{"presence", ""} ->
|
|
case check_user_can_create_room(ServerHost,
|
|
AccessCreate, From,
|
|
Room) of
|
|
true ->
|
|
{ok, Pid} = start_new_room(
|
|
Host, ServerHost, Access,
|
|
Room, HistorySize,
|
|
RoomShaper, From,
|
|
Nick, DefRoomOpts),
|
|
register_room(Host, Room, Pid),
|
|
mod_muc_room:route(Pid, From, Nick, Packet),
|
|
ok;
|
|
false ->
|
|
Lang = xml:get_attr_s("xml:lang", Attrs),
|
|
ErrText = "Room creation is denied by service policy",
|
|
Err = jlib:make_error_reply(
|
|
Packet, ?ERRT_FORBIDDEN(Lang, ErrText)),
|
|
ejabberd_router:route(To, From, Err)
|
|
end;
|
|
_ ->
|
|
Lang = xml:get_attr_s("xml:lang", Attrs),
|
|
ErrText = "Conference room does not exist",
|
|
Err = jlib:make_error_reply(
|
|
Packet, ?ERRT_ITEM_NOT_FOUND(Lang, ErrText)),
|
|
ejabberd_router:route(To, From, Err)
|
|
end;
|
|
[R] ->
|
|
Pid = R#muc_online_room.pid,
|
|
?DEBUG("MUC: send to process ~p~n", [Pid]),
|
|
mod_muc_room:route(Pid, From, Nick, Packet),
|
|
ok
|
|
end
|
|
end.
|
|
|
|
check_user_can_create_room(ServerHost, AccessCreate, From, RoomID) ->
|
|
case acl:match_rule(ServerHost, AccessCreate, From) of
|
|
allow ->
|
|
(length(RoomID) =< gen_mod:get_module_opt(ServerHost, mod_muc,
|
|
max_room_id, infinite));
|
|
_ ->
|
|
false
|
|
end.
|
|
|
|
|
|
load_permanent_rooms(Host, ServerHost, Access, HistorySize, RoomShaper) ->
|
|
SHost = ejabberd_odbc:escape(Host),
|
|
LServer = jlib:nameprep(ServerHost),
|
|
case catch ejabberd_odbc:sql_query(
|
|
LServer, ["select name, opts from muc_room ",
|
|
"where host='", SHost, "';"]) of
|
|
{'EXIT', Reason} ->
|
|
?ERROR_MSG("~p", [Reason]),
|
|
ok;
|
|
{selected, ["name", "opts"], RoomOpts} ->
|
|
lists:foreach(
|
|
fun({Room, Opts}) ->
|
|
case mnesia:dirty_read(muc_online_room, {Room, Host}) of
|
|
[] ->
|
|
{ok, Pid} = mod_muc_room:start(
|
|
Host,
|
|
ServerHost,
|
|
Access,
|
|
Room,
|
|
HistorySize,
|
|
RoomShaper,
|
|
decode_opts(Opts),
|
|
?MODULE),
|
|
register_room(Host, Room, Pid);
|
|
_ ->
|
|
ok
|
|
end
|
|
end, RoomOpts)
|
|
end.
|
|
|
|
start_new_room(Host, ServerHost, Access, Room,
|
|
HistorySize, RoomShaper, From,
|
|
Nick, DefRoomOpts) ->
|
|
SHost = ejabberd_odbc:escape(Host),
|
|
LServer = jlib:nameprep(ServerHost),
|
|
SRoom = ejabberd_odbc:escape(Room),
|
|
case ejabberd_odbc:sql_query(
|
|
LServer, ["select opts from muc_room where name='", SRoom,
|
|
"' and host='", SHost, "';"]) of
|
|
{selected, ["opts"], []} ->
|
|
?DEBUG("MUC: open new room '~s'~n", [Room]),
|
|
mod_muc_room:start(Host, ServerHost, Access,
|
|
Room, HistorySize,
|
|
RoomShaper, From,
|
|
Nick, DefRoomOpts, ?MODULE);
|
|
{selected, ["opts"], [{Opts}|_]} ->
|
|
?DEBUG("MUC: restore room '~s'~n", [Room]),
|
|
mod_muc_room:start(Host, ServerHost, Access,
|
|
Room, HistorySize,
|
|
RoomShaper, decode_opts(Opts), ?MODULE)
|
|
end.
|
|
|
|
register_room(Host, Room, Pid) ->
|
|
F = fun() ->
|
|
mnesia:write(#muc_online_room{name_host = {Room, Host},
|
|
pid = Pid})
|
|
end,
|
|
mnesia:transaction(F).
|
|
|
|
|
|
iq_disco_info(Lang) ->
|
|
[{xmlelement, "identity",
|
|
[{"category", "conference"},
|
|
{"type", "text"},
|
|
{"name", translate:translate(Lang, "Chatrooms")}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_DISCO_INFO}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_DISCO_ITEMS}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_MUC}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_MUC_UNIQUE}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_REGISTER}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_RSM}], []},
|
|
{xmlelement, "feature", [{"var", ?NS_VCARD}], []}].
|
|
|
|
|
|
iq_disco_items(Host, From, Lang, none) ->
|
|
lists:zf(fun(#muc_online_room{name_host = {Name, _Host}, pid = Pid}) ->
|
|
case catch gen_fsm:sync_send_all_state_event(
|
|
Pid, {get_disco_item, From, Lang}, 100) of
|
|
{item, Desc} ->
|
|
flush(),
|
|
{true,
|
|
{xmlelement, "item",
|
|
[{"jid", jlib:jid_to_string({Name, Host, ""})},
|
|
{"name", Desc}], []}};
|
|
_ ->
|
|
false
|
|
end
|
|
end, get_vh_rooms(Host));
|
|
|
|
iq_disco_items(Host, From, Lang, Rsm) ->
|
|
{Rooms, RsmO} = get_vh_rooms(Host, Rsm),
|
|
RsmOut = jlib:rsm_encode(RsmO),
|
|
lists:zf(fun(#muc_online_room{name_host = {Name, _Host}, pid = Pid}) ->
|
|
case catch gen_fsm:sync_send_all_state_event(
|
|
Pid, {get_disco_item, From, Lang}, 100) of
|
|
{item, Desc} ->
|
|
flush(),
|
|
{true,
|
|
{xmlelement, "item",
|
|
[{"jid", jlib:jid_to_string({Name, Host, ""})},
|
|
{"name", Desc}], []}};
|
|
_ ->
|
|
false
|
|
end
|
|
end, Rooms) ++ RsmOut.
|
|
|
|
get_vh_rooms(Host, #rsm_in{max=M, direction=Direction, id=I, index=Index})->
|
|
AllRooms = lists:sort(get_vh_rooms(Host)),
|
|
Count = erlang:length(AllRooms),
|
|
Guard = case Direction of
|
|
_ when Index =/= undefined -> [{'==', {element, 2, '$1'}, Host}];
|
|
aft -> [{'==', {element, 2, '$1'}, Host}, {'>=',{element, 1, '$1'} ,I}];
|
|
before when I =/= []-> [{'==', {element, 2, '$1'}, Host}, {'=<',{element, 1, '$1'} ,I}];
|
|
_ -> [{'==', {element, 2, '$1'}, Host}]
|
|
end,
|
|
L = lists:sort(
|
|
mnesia:dirty_select(muc_online_room,
|
|
[{#muc_online_room{name_host = '$1', _ = '_'},
|
|
Guard,
|
|
['$_']}])),
|
|
L2 = if
|
|
Index == undefined andalso Direction == before ->
|
|
lists:reverse(lists:sublist(lists:reverse(L), 1, M));
|
|
Index == undefined ->
|
|
lists:sublist(L, 1, M);
|
|
Index > Count orelse Index < 0 ->
|
|
[];
|
|
true ->
|
|
lists:sublist(L, Index+1, M)
|
|
end,
|
|
if
|
|
L2 == [] ->
|
|
{L2, #rsm_out{count=Count}};
|
|
true ->
|
|
H = hd(L2),
|
|
NewIndex = get_room_pos(H, AllRooms),
|
|
T=lists:last(L2),
|
|
{F, _}=H#muc_online_room.name_host,
|
|
{Last, _}=T#muc_online_room.name_host,
|
|
{L2, #rsm_out{first=F, last=Last, count=Count, index=NewIndex}}
|
|
end.
|
|
|
|
%% @doc Return the position of desired room in the list of rooms.
|
|
%% The room must exist in the list. The count starts in 0.
|
|
%% @spec (Desired::muc_online_room(), Rooms::[muc_online_room()]) -> integer()
|
|
get_room_pos(Desired, Rooms) ->
|
|
get_room_pos(Desired, Rooms, 0).
|
|
get_room_pos(Desired, [HeadRoom | _], HeadPosition)
|
|
when (Desired#muc_online_room.name_host ==
|
|
HeadRoom#muc_online_room.name_host) ->
|
|
HeadPosition;
|
|
get_room_pos(Desired, [_ | Rooms], HeadPosition) ->
|
|
get_room_pos(Desired, Rooms, HeadPosition + 1).
|
|
|
|
flush() ->
|
|
receive
|
|
_ ->
|
|
flush()
|
|
after 0 ->
|
|
ok
|
|
end.
|
|
|
|
-define(XFIELD(Type, Label, Var, Val),
|
|
{xmlelement, "field", [{"type", Type},
|
|
{"label", translate:translate(Lang, Label)},
|
|
{"var", Var}],
|
|
[{xmlelement, "value", [], [{xmlcdata, Val}]}]}).
|
|
|
|
%% @doc Get a pseudo unique Room Name. The Room Name is generated as a hash of
|
|
%% the requester JID, the local time and a random salt.
|
|
%%
|
|
%% "pseudo" because we don't verify that there is not a room
|
|
%% with the returned Name already created, nor mark the generated Name
|
|
%% as "already used". But in practice, it is unique enough. See
|
|
%% http://xmpp.org/extensions/xep-0045.html#createroom-unique
|
|
iq_get_unique(From) ->
|
|
{xmlcdata, sha:sha(term_to_binary([From, now(), randoms:get_string()]))}.
|
|
|
|
iq_get_register_info(ServerHost, Host, From, Lang) ->
|
|
SJID = ejabberd_odbc:escape(
|
|
jlib:jid_to_string(
|
|
jlib:jid_tolower(
|
|
jlib:jid_remove_resource(From)))),
|
|
SHost = ejabberd_odbc:escape(Host),
|
|
LServer = jlib:nameprep(ServerHost),
|
|
{Nick, Registered} =
|
|
case catch ejabberd_odbc:sql_query(
|
|
LServer, ["select nick from muc_registered where "
|
|
"jid='", SJID, "' and host='", SHost, "';"]) of
|
|
{selected, ["nick"], [{N}]} ->
|
|
{N, [{xmlelement, "registered", [], []}]};
|
|
_ ->
|
|
{"", []}
|
|
end,
|
|
Registered ++
|
|
[{xmlelement, "instructions", [],
|
|
[{xmlcdata,
|
|
translate:translate(
|
|
Lang, "You need a client that supports x:data to register the nickname")}]},
|
|
{xmlelement, "x",
|
|
[{"xmlns", ?NS_XDATA}],
|
|
[{xmlelement, "title", [],
|
|
[{xmlcdata,
|
|
translate:translate(
|
|
Lang, "Nickname Registration at ") ++ Host}]},
|
|
{xmlelement, "instructions", [],
|
|
[{xmlcdata,
|
|
translate:translate(
|
|
Lang, "Enter nickname you want to register")}]},
|
|
?XFIELD("text-single", "Nickname", "nick", Nick)]}].
|
|
|
|
iq_set_register_info(ServerHost, Host, From, Nick, Lang) ->
|
|
JID = jlib:jid_to_string(
|
|
jlib:jid_tolower(
|
|
jlib:jid_remove_resource(From))),
|
|
SJID = ejabberd_odbc:escape(JID),
|
|
SNick = ejabberd_odbc:escape(Nick),
|
|
SHost = ejabberd_odbc:escape(Host),
|
|
LServer = jlib:nameprep(ServerHost),
|
|
F = fun() ->
|
|
case Nick of
|
|
"" ->
|
|
ejabberd_odbc:sql_query_t(
|
|
["delete from muc_registered where ",
|
|
"jid='", SJID, "' and host='", Host, "';"]),
|
|
ok;
|
|
_ ->
|
|
Allow =
|
|
case ejabberd_odbc:sql_query_t(
|
|
["select jid from muc_registered ",
|
|
"where nick='", SNick, "' and host='",
|
|
SHost, "';"]) of
|
|
{selected, ["jid"], [{J}]} ->
|
|
J == JID;
|
|
_ ->
|
|
true
|
|
end,
|
|
if Allow ->
|
|
update_t(
|
|
"muc_registered",
|
|
["jid", "host", "nick"],
|
|
[SJID, SHost, SNick],
|
|
["jid='", SJID, "' and host='", SHost, "'"]),
|
|
ok;
|
|
true ->
|
|
false
|
|
end
|
|
end
|
|
end,
|
|
case catch ejabberd_odbc:sql_transaction(LServer, F) of
|
|
{atomic, ok} ->
|
|
{result, []};
|
|
{atomic, false} ->
|
|
ErrText = "That nickname is registered by another person",
|
|
{error, ?ERRT_CONFLICT(Lang, ErrText)};
|
|
_ ->
|
|
{error, ?ERR_INTERNAL_SERVER_ERROR}
|
|
end.
|
|
|
|
process_iq_register_set(ServerHost, Host, From, SubEl, Lang) ->
|
|
{xmlelement, _Name, _Attrs, Els} = SubEl,
|
|
case xml:get_subtag(SubEl, "remove") of
|
|
false ->
|
|
case xml:remove_cdata(Els) of
|
|
[{xmlelement, "x", _Attrs1, _Els1} = XEl] ->
|
|
case {xml:get_tag_attr_s("xmlns", XEl),
|
|
xml:get_tag_attr_s("type", XEl)} of
|
|
{?NS_XDATA, "cancel"} ->
|
|
{result, []};
|
|
{?NS_XDATA, "submit"} ->
|
|
XData = jlib:parse_xdata_submit(XEl),
|
|
case XData of
|
|
invalid ->
|
|
{error, ?ERR_BAD_REQUEST};
|
|
_ ->
|
|
case lists:keysearch("nick", 1, XData) of
|
|
{value, {_, [Nick]}} when Nick /= "" ->
|
|
iq_set_register_info(ServerHost, Host,
|
|
From, Nick, Lang);
|
|
_ ->
|
|
ErrText = "You must fill in field \"Nickname\" in the form",
|
|
{error, ?ERRT_NOT_ACCEPTABLE(Lang, ErrText)}
|
|
end
|
|
end;
|
|
_ ->
|
|
{error, ?ERR_BAD_REQUEST}
|
|
end;
|
|
_ ->
|
|
{error, ?ERR_BAD_REQUEST}
|
|
end;
|
|
_ ->
|
|
iq_set_register_info(ServerHost, Host, From, "", Lang)
|
|
end.
|
|
|
|
iq_get_vcard(Lang) ->
|
|
[{xmlelement, "FN", [],
|
|
[{xmlcdata, "ejabberd/mod_muc"}]},
|
|
{xmlelement, "URL", [],
|
|
[{xmlcdata, ?EJABBERD_URI}]},
|
|
{xmlelement, "DESC", [],
|
|
[{xmlcdata, translate:translate(Lang, "ejabberd MUC module") ++
|
|
"\nCopyright (c) 2003-2012 ProcessOne"}]}].
|
|
|
|
|
|
broadcast_service_message(Host, Msg) ->
|
|
lists:foreach(
|
|
fun(#muc_online_room{pid = Pid}) ->
|
|
gen_fsm:send_all_state_event(
|
|
Pid, {service_message, Msg})
|
|
end, get_vh_rooms(Host)).
|
|
|
|
get_vh_rooms(Host) ->
|
|
mnesia:dirty_select(muc_online_room,
|
|
[{#muc_online_room{name_host = '$1', _ = '_'},
|
|
[{'==', {element, 2, '$1'}, Host}],
|
|
['$_']}]).
|
|
|
|
|
|
clean_table_from_bad_node(Node) ->
|
|
F = fun() ->
|
|
Es = mnesia:select(
|
|
muc_online_room,
|
|
[{#muc_online_room{pid = '$1', _ = '_'},
|
|
[{'==', {node, '$1'}, Node}],
|
|
['$_']}]),
|
|
lists:foreach(fun(E) ->
|
|
mnesia:delete_object(E)
|
|
end, Es)
|
|
end,
|
|
mnesia:async_dirty(F).
|
|
|
|
clean_table_from_bad_node(Node, Host) ->
|
|
F = fun() ->
|
|
Es = mnesia:select(
|
|
muc_online_room,
|
|
[{#muc_online_room{pid = '$1',
|
|
name_host = {'_', Host},
|
|
_ = '_'},
|
|
[{'==', {node, '$1'}, Node}],
|
|
['$_']}]),
|
|
lists:foreach(fun(E) ->
|
|
mnesia:delete_object(E)
|
|
end, Es)
|
|
end,
|
|
mnesia:async_dirty(F).
|
|
|
|
encode_opts(Opts) ->
|
|
ejabberd_odbc:escape(erl_prettypr:format(erl_syntax:abstract(Opts))).
|
|
|
|
decode_opts(Str) ->
|
|
{ok, Tokens, _} = erl_scan:string(Str ++ "."),
|
|
{ok, Opts} = erl_parse:parse_term(Tokens),
|
|
Opts.
|
|
|
|
%% Almost a copy of string:join/2.
|
|
%% We use this version because string:join/2 is relatively
|
|
%% new function (introduced in R12B-0).
|
|
join([], _Sep) ->
|
|
[];
|
|
join([H|T], Sep) ->
|
|
[H, [[Sep, X] || X <- T]].
|
|
|
|
%% Safe atomic update.
|
|
update_t(Table, Fields, Vals, Where) ->
|
|
UPairs = lists:zipwith(fun(A, B) -> A ++ "='" ++ B ++ "'" end,
|
|
Fields, Vals),
|
|
case ejabberd_odbc:sql_query_t(
|
|
["update ", Table, " set ",
|
|
join(UPairs, ", "),
|
|
" where ", Where, ";"]) of
|
|
{updated, 1} ->
|
|
ok;
|
|
_ ->
|
|
ejabberd_odbc:sql_query_t(
|
|
["insert into ", Table, "(", join(Fields, ", "),
|
|
") values ('", join(Vals, "', '"), "');"])
|
|
end.
|