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xmpp.chapril.org-ejabberd/src/mod_muc_room.erl
Paweł Chmielowski 75094df25e Do not use ~ts format in string that are put in xmpp payload 
We are expecting utf8 data here, and using that flag will convert those
to unicode codepoints, which aren't handled properly later.
2020-01-22 12:55:27 +01:00

4746 lines
166 KiB
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%%%----------------------------------------------------------------------
%%% File : mod_muc_room.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : MUC room stuff
%%% Created : 19 Mar 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2019 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%----------------------------------------------------------------------
-module(mod_muc_room).
-author('alexey@process-one.net').
-behaviour(p1_fsm).
%% External exports
-export([start_link/10,
start_link/8,
start/10,
start/8,
supervisor/1,
get_role/2,
get_affiliation/2,
is_occupant_or_admin/2,
route/2,
expand_opts/1,
config_fields/0,
destroy/1,
destroy/2,
shutdown/1,
get_config/1,
set_config/2,
get_state/1,
change_item/5,
config_reloaded/1,
subscribe/4,
unsubscribe/2,
is_subscribed/2,
get_subscribers/1,
service_message/2,
get_disco_item/4]).
%% gen_fsm callbacks
-export([init/1,
normal_state/2,
handle_event/3,
handle_sync_event/4,
handle_info/3,
terminate/3,
code_change/4]).
-include("logger.hrl").
-include("xmpp.hrl").
-include("translate.hrl").
-include("mod_muc_room.hrl").
-include("ejabberd_stacktrace.hrl").
-define(MAX_USERS_DEFAULT_LIST,
[5, 10, 20, 30, 50, 100, 200, 500, 1000, 2000, 5000]).
-define(DEFAULT_MAX_USERS_PRESENCE,1000).
%-define(DBGFSM, true).
-ifdef(DBGFSM).
-define(FSMOPTS, [{debug, [trace]}]).
-else.
-define(FSMOPTS, []).
-endif.
-type state() :: #state{}.
-type fsm_stop() :: {stop, normal, state()}.
-type fsm_next() :: {next_state, normal_state, state()}.
-type fsm_transition() :: fsm_stop() | fsm_next().
-type disco_item_filter() :: only_non_empty | all | non_neg_integer().
-type admin_action() :: {jid(), affiliation | role, affiliation() | role(), binary()}.
-export_type([state/0, disco_item_filter/0]).
-callback set_affiliation(binary(), binary(), binary(), jid(), affiliation(),
binary()) -> ok | {error, any()}.
-callback set_affiliations(binary(), binary(), binary(),
affiliations()) -> ok | {error, any()}.
-callback get_affiliation(binary(), binary(), binary(),
binary(), binary()) -> {ok, affiliation()} | {error, any()}.
-callback get_affiliations(binary(), binary(), binary()) -> {ok, affiliations()} | {error, any()}.
-callback search_affiliation(binary(), binary(), binary(), affiliation()) ->
{ok, [{ljid(), {affiliation(), binary()}}]} | {error, any()}.
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
-spec start(binary(), binary(), mod_muc:access(), binary(), non_neg_integer(),
atom(), jid(), binary(), [{atom(), term()}], ram | file) ->
{ok, pid()} | {error, any()}.
start(Host, ServerHost, Access, Room, HistorySize, RoomShaper,
Creator, Nick, DefRoomOpts, QueueType) ->
supervisor:start_child(
supervisor(ServerHost),
[Host, ServerHost, Access, Room, HistorySize,
RoomShaper, Creator, Nick, DefRoomOpts, QueueType]).
-spec start(binary(), binary(), mod_muc:access(), binary(), non_neg_integer(),
atom(), [{atom(), term()}], ram | file) ->
{ok, pid()} | {error, any()}.
start(Host, ServerHost, Access, Room, HistorySize, RoomShaper, Opts, QueueType) ->
supervisor:start_child(
supervisor(ServerHost),
[Host, ServerHost, Access, Room, HistorySize,
RoomShaper, Opts, QueueType]).
-spec start_link(binary(), binary(), mod_muc:access(), binary(), non_neg_integer(),
atom(), jid(), binary(), [{atom(), term()}], ram | file) ->
{ok, pid()} | {error, any()}.
start_link(Host, ServerHost, Access, Room, HistorySize, RoomShaper,
Creator, Nick, DefRoomOpts, QueueType) ->
p1_fsm:start_link(?MODULE, [Host, ServerHost, Access, Room, HistorySize,
RoomShaper, Creator, Nick, DefRoomOpts, QueueType],
?FSMOPTS).
-spec start_link(binary(), binary(), mod_muc:access(), binary(), non_neg_integer(),
atom(), [{atom(), term()}], ram | file) ->
{ok, pid()} | {error, any()}.
start_link(Host, ServerHost, Access, Room, HistorySize, RoomShaper, Opts, QueueType) ->
p1_fsm:start_link(?MODULE, [Host, ServerHost, Access, Room, HistorySize,
RoomShaper, Opts, QueueType],
?FSMOPTS).
-spec supervisor(binary()) -> atom().
supervisor(Host) ->
gen_mod:get_module_proc(Host, mod_muc_room_sup).
-spec destroy(pid()) -> ok.
destroy(Pid) ->
p1_fsm:send_all_state_event(Pid, destroy).
-spec destroy(pid(), binary()) -> ok.
destroy(Pid, Reason) ->
p1_fsm:send_all_state_event(Pid, {destroy, Reason}).
-spec shutdown(pid()) -> boolean().
shutdown(Pid) ->
ejabberd_cluster:send(Pid, shutdown).
-spec config_reloaded(pid()) -> boolean().
config_reloaded(Pid) ->
ejabberd_cluster:send(Pid, config_reloaded).
-spec get_config(pid()) -> {ok, config()} | {error, notfound | timeout}.
get_config(Pid) ->
try p1_fsm:sync_send_all_state_event(Pid, get_config)
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
-spec set_config(pid(), config()) -> {ok, config()} | {error, notfound | timeout}.
set_config(Pid, Config) ->
try p1_fsm:sync_send_all_state_event(Pid, {change_config, Config})
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
-spec change_item(pid(), jid(), affiliation | role, affiliation() | role(), binary()) ->
{ok, state()} | {error, notfound | timeout}.
change_item(Pid, JID, Type, AffiliationOrRole, Reason) ->
try p1_fsm:sync_send_all_state_event(
Pid, {process_item_change, {JID, Type, AffiliationOrRole, Reason}, undefined})
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
-spec get_state(pid()) -> {ok, state()} | {error, notfound | timeout}.
get_state(Pid) ->
try p1_fsm:sync_send_all_state_event(Pid, get_state)
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
-spec subscribe(pid(), jid(), binary(), [binary()]) -> {ok, [binary()]} | {error, binary()}.
subscribe(Pid, JID, Nick, Nodes) ->
try p1_fsm:sync_send_all_state_event(Pid, {muc_subscribe, JID, Nick, Nodes})
catch _:{timeout, {p1_fsm, _, _}} ->
{error, ?T("Request has timed out")};
_:{_, {p1_fsm, _, _}} ->
{error, ?T("Conference room does not exist")}
end.
-spec unsubscribe(pid(), jid()) -> ok | {error, binary()}.
unsubscribe(Pid, JID) ->
try p1_fsm:sync_send_all_state_event(Pid, {muc_unsubscribe, JID})
catch _:{timeout, {p1_fsm, _, _}} ->
{error, ?T("Request has timed out")};
_:{_, {p1_fsm, _, _}} ->
{error, ?T("Conference room does not exist")}
end.
-spec is_subscribed(pid(), jid()) -> {true, [binary()]} | false.
is_subscribed(Pid, JID) ->
try p1_fsm:sync_send_all_state_event(Pid, {is_subscribed, JID})
catch _:{_, {p1_fsm, _, _}} -> false
end.
-spec get_subscribers(pid()) -> {ok, [jid()]} | {error, notfound | timeout}.
get_subscribers(Pid) ->
try p1_fsm:sync_send_all_state_event(Pid, get_subscribers)
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
-spec service_message(pid(), binary()) -> ok.
service_message(Pid, Text) ->
p1_fsm:send_all_state_event(Pid, {service_message, Text}).
-spec get_disco_item(pid(), disco_item_filter(), jid(), binary()) ->
{ok, binary()} | {error, notfound | timeout}.
get_disco_item(Pid, Filter, JID, Lang) ->
Timeout = 100,
Time = erlang:system_time(millisecond),
Query = {get_disco_item, Filter, JID, Lang, Time+Timeout},
try p1_fsm:sync_send_all_state_event(Pid, Query, Timeout) of
{item, Desc} ->
{ok, Desc};
false ->
{error, notfound}
catch _:{timeout, {p1_fsm, _, _}} ->
{error, timeout};
_:{_, {p1_fsm, _, _}} ->
{error, notfound}
end.
%%%----------------------------------------------------------------------
%%% Callback functions from gen_fsm
%%%----------------------------------------------------------------------
init([Host, ServerHost, Access, Room, HistorySize,
RoomShaper, Creator, _Nick, DefRoomOpts, QueueType]) ->
process_flag(trap_exit, true),
Shaper = ejabberd_shaper:new(RoomShaper),
RoomQueue = room_queue_new(ServerHost, Shaper, QueueType),
State = set_affiliation(Creator, owner,
#state{host = Host, server_host = ServerHost,
access = Access, room = Room,
history = lqueue_new(HistorySize, QueueType),
jid = jid:make(Room, Host),
just_created = true,
room_queue = RoomQueue,
room_shaper = Shaper}),
State1 = set_opts(DefRoomOpts, State),
store_room(State1),
?INFO_MSG("Created MUC room ~ts@~ts by ~ts",
[Room, Host, jid:encode(Creator)]),
add_to_log(room_existence, created, State1),
add_to_log(room_existence, started, State1),
{ok, normal_state, reset_hibernate_timer(State1)};
init([Host, ServerHost, Access, Room, HistorySize, RoomShaper, Opts, QueueType]) ->
process_flag(trap_exit, true),
Shaper = ejabberd_shaper:new(RoomShaper),
RoomQueue = room_queue_new(ServerHost, Shaper, QueueType),
State = set_opts(Opts, #state{host = Host,
server_host = ServerHost,
access = Access,
room = Room,
history = lqueue_new(HistorySize, QueueType),
jid = jid:make(Room, Host),
room_queue = RoomQueue,
room_shaper = Shaper}),
add_to_log(room_existence, started, State),
{ok, normal_state, reset_hibernate_timer(State)}.
normal_state({route, <<"">>,
#message{from = From, type = Type, lang = Lang} = Packet},
StateData) ->
case is_user_online(From, StateData) orelse
is_subscriber(From, StateData) orelse
is_user_allowed_message_nonparticipant(From, StateData) of
true when Type == groupchat ->
Activity = get_user_activity(From, StateData),
Now = erlang:system_time(microsecond),
MinMessageInterval = trunc(mod_muc_opt:min_message_interval(StateData#state.server_host) * 1000000),
Size = element_size(Packet),
{MessageShaper, MessageShaperInterval} =
ejabberd_shaper:update(Activity#activity.message_shaper, Size),
if Activity#activity.message /= undefined ->
ErrText = ?T("Traffic rate limit is exceeded"),
Err = xmpp:err_resource_constraint(ErrText, Lang),
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData};
Now >= Activity#activity.message_time + MinMessageInterval,
MessageShaperInterval == 0 ->
{RoomShaper, RoomShaperInterval} =
ejabberd_shaper:update(StateData#state.room_shaper, Size),
RoomQueueEmpty = case StateData#state.room_queue of
undefined -> true;
RQ -> p1_queue:is_empty(RQ)
end,
if RoomShaperInterval == 0, RoomQueueEmpty ->
NewActivity = Activity#activity{
message_time = Now,
message_shaper = MessageShaper},
StateData1 = store_user_activity(From,
NewActivity,
StateData),
StateData2 = StateData1#state{room_shaper =
RoomShaper},
process_groupchat_message(Packet,
StateData2);
true ->
StateData1 = if RoomQueueEmpty ->
erlang:send_after(RoomShaperInterval,
self(),
process_room_queue),
StateData#state{room_shaper =
RoomShaper};
true -> StateData
end,
NewActivity = Activity#activity{
message_time = Now,
message_shaper = MessageShaper,
message = Packet},
RoomQueue = p1_queue:in({message, From},
StateData#state.room_queue),
StateData2 = store_user_activity(From,
NewActivity,
StateData1),
StateData3 = StateData2#state{room_queue = RoomQueue},
{next_state, normal_state, StateData3}
end;
true ->
MessageInterval = (Activity#activity.message_time +
MinMessageInterval - Now) div 1000,
Interval = lists:max([MessageInterval,
MessageShaperInterval]),
erlang:send_after(Interval, self(),
{process_user_message, From}),
NewActivity = Activity#activity{
message = Packet,
message_shaper = MessageShaper},
StateData1 = store_user_activity(From, NewActivity, StateData),
{next_state, normal_state, StateData1}
end;
true when Type == error ->
case is_user_online(From, StateData) of
true ->
ErrorText = ?T("It is not allowed to send error messages to the"
" room. The participant (~s) has sent an error "
"message (~s) and got kicked from the room"),
NewState = expulse_participant(Packet, From, StateData,
translate:translate(Lang,
ErrorText)),
close_room_if_temporary_and_empty(NewState);
_ ->
{next_state, normal_state, StateData}
end;
true when Type == chat ->
ErrText = ?T("It is not allowed to send private messages "
"to the conference"),
Err = xmpp:err_not_acceptable(ErrText, Lang),
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData};
true when Type == normal ->
{next_state, normal_state,
try xmpp:decode_els(Packet) of
Pkt -> process_normal_message(From, Pkt, StateData)
catch _:{xmpp_codec, Why} ->
Txt = xmpp:io_format_error(Why),
Err = xmpp:err_bad_request(Txt, Lang),
ejabberd_router:route_error(Packet, Err),
StateData
end};
true ->
ErrText = ?T("Improper message type"),
Err = xmpp:err_not_acceptable(ErrText, Lang),
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData};
false when Type /= error ->
handle_roommessage_from_nonparticipant(Packet, StateData, From),
{next_state, normal_state, StateData};
false ->
{next_state, normal_state, StateData}
end;
normal_state({route, <<"">>,
#iq{from = From, type = Type, lang = Lang, sub_els = [_]} = IQ0},
StateData) when Type == get; Type == set ->
try
case ejabberd_hooks:run_fold(
muc_process_iq,
StateData#state.server_host,
xmpp:set_from_to(xmpp:decode_els(IQ0),
From, StateData#state.jid),
[StateData]) of
ignore ->
{next_state, normal_state, StateData};
#iq{type = T} = IQRes when T == error; T == result ->
ejabberd_router:route(IQRes),
{next_state, normal_state, StateData};
#iq{sub_els = [SubEl]} = IQ ->
Res1 = case SubEl of
#muc_admin{} ->
process_iq_admin(From, IQ, StateData);
#muc_owner{} ->
process_iq_owner(From, IQ, StateData);
#disco_info{} ->
process_iq_disco_info(From, IQ, StateData);
#disco_items{} ->
process_iq_disco_items(From, IQ, StateData);
#vcard_temp{} ->
process_iq_vcard(From, IQ, StateData);
#muc_subscribe{} ->
process_iq_mucsub(From, IQ, StateData);
#muc_unsubscribe{} ->
process_iq_mucsub(From, IQ, StateData);
#muc_subscriptions{} ->
process_iq_mucsub(From, IQ, StateData);
#xcaptcha{} ->
process_iq_captcha(From, IQ, StateData);
_ ->
Txt = ?T("The feature requested is not "
"supported by the conference"),
{error, xmpp:err_service_unavailable(Txt, Lang)}
end,
{IQRes, NewStateData} =
case Res1 of
{result, Res, SD} ->
{xmpp:make_iq_result(IQ, Res), SD};
{result, Res} ->
{xmpp:make_iq_result(IQ, Res), StateData};
{ignore, SD} ->
{ignore, SD};
{error, Error} ->
{xmpp:make_error(IQ0, Error), StateData}
end,
if IQRes /= ignore ->
ejabberd_router:route(IQRes);
true ->
ok
end,
case NewStateData of
stop ->
Conf = StateData#state.config,
{stop, normal, StateData#state{config = Conf#config{persistent = false}}};
_ when NewStateData#state.just_created ->
close_room_if_temporary_and_empty(NewStateData);
_ ->
{next_state, normal_state, NewStateData}
end
end
catch _:{xmpp_codec, Why} ->
ErrTxt = xmpp:io_format_error(Why),
Err = xmpp:err_bad_request(ErrTxt, Lang),
ejabberd_router:route_error(IQ0, Err),
{next_state, normal_state, StateData}
end;
normal_state({route, <<"">>, #iq{} = IQ}, StateData) ->
Err = xmpp:err_bad_request(),
ejabberd_router:route_error(IQ, Err),
case StateData#state.just_created of
true -> {stop, normal, StateData};
_ -> {next_state, normal_state, StateData}
end;
normal_state({route, Nick, #presence{from = From} = Packet}, StateData) ->
Activity = get_user_activity(From, StateData),
Now = erlang:system_time(microsecond),
MinPresenceInterval =
trunc(mod_muc_opt:min_presence_interval(StateData#state.server_host) * 1000000),
if (Now >= Activity#activity.presence_time + MinPresenceInterval)
and (Activity#activity.presence == undefined) ->
NewActivity = Activity#activity{presence_time = Now},
StateData1 = store_user_activity(From, NewActivity,
StateData),
process_presence(Nick, Packet, StateData1);
true ->
if Activity#activity.presence == undefined ->
Interval = (Activity#activity.presence_time +
MinPresenceInterval - Now) div 1000,
erlang:send_after(Interval, self(),
{process_user_presence, From});
true -> ok
end,
NewActivity = Activity#activity{presence = {Nick, Packet}},
StateData1 = store_user_activity(From, NewActivity,
StateData),
{next_state, normal_state, StateData1}
end;
normal_state({route, ToNick,
#message{from = From, type = Type, lang = Lang} = Packet},
StateData) ->
case decide_fate_message(Packet, From, StateData) of
{expulse_sender, Reason} ->
?DEBUG(Reason, []),
ErrorText = ?T("It is not allowed to send error messages to the"
" room. The participant (~s) has sent an error "
"message (~s) and got kicked from the room"),
NewState = expulse_participant(Packet, From, StateData,
translate:translate(Lang, ErrorText)),
{next_state, normal_state, NewState};
forget_message ->
{next_state, normal_state, StateData};
continue_delivery ->
case {(StateData#state.config)#config.allow_private_messages,
is_user_online(From, StateData) orelse
is_subscriber(From, StateData)} of
{true, true} when Type == groupchat ->
ErrText = ?T("It is not allowed to send private messages "
"of type \"groupchat\""),
Err = xmpp:err_bad_request(ErrText, Lang),
ejabberd_router:route_error(Packet, Err);
{true, true} ->
case find_jids_by_nick(ToNick, StateData) of
[] ->
ErrText = ?T("Recipient is not in the conference room"),
Err = xmpp:err_item_not_found(ErrText, Lang),
ejabberd_router:route_error(Packet, Err);
ToJIDs ->
SrcIsVisitor = is_visitor(From, StateData),
DstIsModerator = is_moderator(hd(ToJIDs), StateData),
PmFromVisitors =
(StateData#state.config)#config.allow_private_messages_from_visitors,
if SrcIsVisitor == false;
PmFromVisitors == anyone;
(PmFromVisitors == moderators) and
DstIsModerator ->
{FromNick, _} = get_participant_data(From, StateData),
FromNickJID =
jid:replace_resource(StateData#state.jid,
FromNick),
X = #muc_user{},
PrivMsg = xmpp:set_from(
xmpp:set_subtag(Packet, X),
FromNickJID),
lists:foreach(
fun(ToJID) ->
ejabberd_router:route(xmpp:set_to(PrivMsg, ToJID))
end, ToJIDs);
true ->
ErrText = ?T("It is not allowed to send private messages"),
Err = xmpp:err_forbidden(ErrText, Lang),
ejabberd_router:route_error(Packet, Err)
end
end;
{true, false} ->
ErrText = ?T("Only occupants are allowed to send messages "
"to the conference"),
Err = xmpp:err_not_acceptable(ErrText, Lang),
ejabberd_router:route_error(Packet, Err);
{false, _} ->
ErrText = ?T("It is not allowed to send private messages"),
Err = xmpp:err_forbidden(ErrText, Lang),
ejabberd_router:route_error(Packet, Err)
end,
{next_state, normal_state, StateData}
end;
normal_state({route, ToNick,
#iq{from = From, lang = Lang} = Packet},
#state{config = #config{allow_query_users = AllowQuery}} = StateData) ->
try maps:get(jid:tolower(From), StateData#state.users) of
#user{nick = FromNick} when AllowQuery orelse ToNick == FromNick ->
case find_jid_by_nick(ToNick, StateData) of
false ->
ErrText = ?T("Recipient is not in the conference room"),
Err = xmpp:err_item_not_found(ErrText, Lang),
ejabberd_router:route_error(Packet, Err);
To ->
FromJID = jid:replace_resource(StateData#state.jid, FromNick),
case direct_iq_type(Packet) of
vcard ->
ejabberd_router:route_iq(
xmpp:set_from_to(Packet, FromJID, jid:remove_resource(To)),
Packet, self());
ping when ToNick == FromNick ->
%% Self-ping optimization from XEP-0410
ejabberd_router:route(xmpp:make_iq_result(Packet));
response ->
ejabberd_router:route(xmpp:set_from_to(Packet, FromJID, To));
#stanza_error{} = Err ->
ejabberd_router:route_error(Packet, Err);
_OtherRequest ->
ejabberd_router:route_iq(
xmpp:set_from_to(Packet, FromJID, To), Packet, self())
end
end;
_ ->
ErrText = ?T("Queries to the conference members are "
"not allowed in this room"),
Err = xmpp:err_not_allowed(ErrText, Lang),
ejabberd_router:route_error(Packet, Err)
catch _:{badkey, _} ->
ErrText = ?T("Only occupants are allowed to send queries "
"to the conference"),
Err = xmpp:err_not_acceptable(ErrText, Lang),
ejabberd_router:route_error(Packet, Err)
end,
{next_state, normal_state, StateData};
normal_state(hibernate, StateData) ->
case maps:size(StateData#state.users) of
0 ->
store_room_no_checks(StateData, []),
?INFO_MSG("Hibernating room ~ts@~ts", [StateData#state.room, StateData#state.host]),
{stop, normal, StateData#state{hibernate_timer = hibernating}};
_ ->
{next_state, normal_state, StateData}
end;
normal_state(_Event, StateData) ->
{next_state, normal_state, StateData}.
handle_event({service_message, Msg}, _StateName,
StateData) ->
MessagePkt = #message{type = groupchat, body = xmpp:mk_text(Msg)},
send_wrapped_multiple(
StateData#state.jid,
get_users_and_subscribers(StateData),
MessagePkt,
?NS_MUCSUB_NODES_MESSAGES,
StateData),
NSD = add_message_to_history(<<"">>,
StateData#state.jid, MessagePkt, StateData),
{next_state, normal_state, NSD};
handle_event({destroy, Reason}, _StateName,
StateData) ->
_ = destroy_room(#muc_destroy{xmlns = ?NS_MUC_OWNER, reason = Reason}, StateData),
?INFO_MSG("Destroyed MUC room ~ts with reason: ~p",
[jid:encode(StateData#state.jid), Reason]),
add_to_log(room_existence, destroyed, StateData),
Conf = StateData#state.config,
{stop, shutdown, StateData#state{config = Conf#config{persistent = false}}};
handle_event(destroy, StateName, StateData) ->
?INFO_MSG("Destroyed MUC room ~ts",
[jid:encode(StateData#state.jid)]),
handle_event({destroy, <<"">>}, StateName, StateData);
handle_event({set_affiliations, Affiliations},
StateName, StateData) ->
NewStateData = set_affiliations(Affiliations, StateData),
{next_state, StateName, NewStateData};
handle_event(_Event, StateName, StateData) ->
{next_state, StateName, StateData}.
handle_sync_event({get_disco_item, Filter, JID, Lang, Time}, _From, StateName, StateData) ->
Len = maps:size(StateData#state.nicks),
Reply = case (Filter == all) or (Filter == Len) or ((Filter /= 0) and (Len /= 0)) of
true ->
get_roomdesc_reply(JID, StateData,
get_roomdesc_tail(StateData, Lang));
false ->
false
end,
CurrentTime = erlang:system_time(millisecond),
if CurrentTime < Time ->
{reply, Reply, StateName, StateData};
true ->
{next_state, StateName, StateData}
end;
%% These two clauses are only for backward compatibility with nodes running old code
handle_sync_event({get_disco_item, JID, Lang}, From, StateName, StateData) ->
handle_sync_event({get_disco_item, any, JID, Lang}, From, StateName, StateData);
handle_sync_event({get_disco_item, Filter, JID, Lang}, From, StateName, StateData) ->
handle_sync_event({get_disco_item, Filter, JID, Lang, infinity}, From, StateName, StateData);
handle_sync_event(get_config, _From, StateName,
StateData) ->
{reply, {ok, StateData#state.config}, StateName,
StateData};
handle_sync_event(get_state, _From, StateName,
StateData) ->
{reply, {ok, StateData}, StateName, StateData};
handle_sync_event({change_config, Config}, _From,
StateName, StateData) ->
{result, undefined, NSD} = change_config(Config, StateData),
{reply, {ok, NSD#state.config}, StateName, NSD};
handle_sync_event({change_state, NewStateData}, _From,
StateName, _StateData) ->
Mod = gen_mod:db_mod(NewStateData#state.server_host, mod_muc),
case erlang:function_exported(Mod, get_subscribed_rooms, 3) of
true ->
ok;
_ ->
erlang:put(muc_subscribers, NewStateData#state.subscribers)
end,
{reply, {ok, NewStateData}, StateName, NewStateData};
handle_sync_event({process_item_change, Item, UJID}, _From, StateName, StateData) ->
case process_item_change(Item, StateData, UJID) of
{error, _} = Err ->
{reply, Err, StateName, StateData};
NSD ->
{reply, {ok, NSD}, StateName, NSD}
end;
handle_sync_event(get_subscribers, _From, StateName, StateData) ->
JIDs = lists:map(fun jid:make/1,
maps:keys(StateData#state.subscribers)),
{reply, {ok, JIDs}, StateName, StateData};
handle_sync_event({muc_subscribe, From, Nick, Nodes}, _From,
StateName, StateData) ->
IQ = #iq{type = set, id = p1_rand:get_string(),
from = From, sub_els = [#muc_subscribe{nick = Nick,
events = Nodes}]},
Config = StateData#state.config,
CaptchaRequired = Config#config.captcha_protected,
PasswordProtected = Config#config.password_protected,
TmpConfig = Config#config{captcha_protected = false,
password_protected = false},
TmpState = StateData#state{config = TmpConfig},
case process_iq_mucsub(From, IQ, TmpState) of
{result, #muc_subscribe{events = NewNodes}, NewState} ->
NewConfig = (NewState#state.config)#config{
captcha_protected = CaptchaRequired,
password_protected = PasswordProtected},
{reply, {ok, NewNodes}, StateName,
NewState#state{config = NewConfig}};
{ignore, NewState} ->
NewConfig = (NewState#state.config)#config{
captcha_protected = CaptchaRequired,
password_protected = PasswordProtected},
{reply, {error, ?T("Request is ignored")},
NewState#state{config = NewConfig}};
{error, Err} ->
{reply, {error, get_error_text(Err)}, StateName, StateData}
end;
handle_sync_event({muc_unsubscribe, From}, _From, StateName, StateData) ->
IQ = #iq{type = set, id = p1_rand:get_string(),
from = From, sub_els = [#muc_unsubscribe{}]},
case process_iq_mucsub(From, IQ, StateData) of
{result, _, NewState} ->
{reply, ok, StateName, NewState};
{ignore, NewState} ->
{reply, {error, ?T("Request is ignored")}, NewState};
{error, Err} ->
{reply, {error, get_error_text(Err)}, StateName, StateData}
end;
handle_sync_event({is_subscribed, From}, _From, StateName, StateData) ->
IsSubs = try maps:get(jid:split(From), StateData#state.subscribers) of
#subscriber{nodes = Nodes} -> {true, Nodes}
catch _:{badkey, _} -> false
end,
{reply, IsSubs, StateName, StateData};
handle_sync_event(_Event, _From, StateName,
StateData) ->
Reply = ok, {reply, Reply, StateName, StateData}.
code_change(_OldVsn, StateName, StateData, _Extra) ->
{ok, StateName, StateData}.
handle_info({process_user_presence, From}, normal_state = _StateName, StateData) ->
RoomQueueEmpty = p1_queue:is_empty(StateData#state.room_queue),
RoomQueue = p1_queue:in({presence, From}, StateData#state.room_queue),
StateData1 = StateData#state{room_queue = RoomQueue},
if RoomQueueEmpty ->
StateData2 = prepare_room_queue(StateData1),
{next_state, normal_state, StateData2};
true -> {next_state, normal_state, StateData1}
end;
handle_info({process_user_message, From},
normal_state = _StateName, StateData) ->
RoomQueueEmpty =
p1_queue:is_empty(StateData#state.room_queue),
RoomQueue = p1_queue:in({message, From},
StateData#state.room_queue),
StateData1 = StateData#state{room_queue = RoomQueue},
if RoomQueueEmpty ->
StateData2 = prepare_room_queue(StateData1),
{next_state, normal_state, StateData2};
true -> {next_state, normal_state, StateData1}
end;
handle_info(process_room_queue,
normal_state = StateName, StateData) ->
case p1_queue:out(StateData#state.room_queue) of
{{value, {message, From}}, RoomQueue} ->
Activity = get_user_activity(From, StateData),
Packet = Activity#activity.message,
NewActivity = Activity#activity{message = undefined},
StateData1 = store_user_activity(From, NewActivity,
StateData),
StateData2 = StateData1#state{room_queue = RoomQueue},
StateData3 = prepare_room_queue(StateData2),
process_groupchat_message(Packet, StateData3);
{{value, {presence, From}}, RoomQueue} ->
Activity = get_user_activity(From, StateData),
{Nick, Packet} = Activity#activity.presence,
NewActivity = Activity#activity{presence = undefined},
StateData1 = store_user_activity(From, NewActivity,
StateData),
StateData2 = StateData1#state{room_queue = RoomQueue},
StateData3 = prepare_room_queue(StateData2),
process_presence(Nick, Packet, StateData3);
{empty, _} -> {next_state, StateName, StateData}
end;
handle_info({captcha_succeed, From}, normal_state,
StateData) ->
NewState = case maps:get(From, StateData#state.robots, passed) of
{Nick, Packet} ->
Robots = maps:put(From, passed, StateData#state.robots),
add_new_user(From, Nick, Packet,
StateData#state{robots = Robots});
passed ->
StateData
end,
{next_state, normal_state, NewState};
handle_info({captcha_failed, From}, normal_state,
StateData) ->
NewState = case maps:get(From, StateData#state.robots, passed) of
{_Nick, Packet} ->
Robots = maps:remove(From, StateData#state.robots),
Txt = ?T("The CAPTCHA verification has failed"),
Lang = xmpp:get_lang(Packet),
Err = xmpp:err_not_authorized(Txt, Lang),
ejabberd_router:route_error(Packet, Err),
StateData#state{robots = Robots};
passed ->
StateData
end,
{next_state, normal_state, NewState};
handle_info(shutdown, _StateName, StateData) ->
{stop, shutdown, StateData};
handle_info({iq_reply, #iq{type = Type, sub_els = Els},
#iq{from = From, to = To} = IQ}, StateName, StateData) ->
ejabberd_router:route(
xmpp:set_from_to(
IQ#iq{type = Type, sub_els = Els},
To, From)),
{next_state, StateName, StateData};
handle_info({iq_reply, timeout, IQ}, StateName, StateData) ->
Txt = ?T("Request has timed out"),
Err = xmpp:err_recipient_unavailable(Txt, IQ#iq.lang),
ejabberd_router:route_error(IQ, Err),
{next_state, StateName, StateData};
handle_info(config_reloaded, StateName, StateData) ->
Max = mod_muc_opt:history_size(StateData#state.server_host),
History1 = StateData#state.history,
Q1 = History1#lqueue.queue,
Q2 = case p1_queue:len(Q1) of
Len when Len > Max ->
lqueue_cut(Q1, Len-Max);
_ ->
Q1
end,
History2 = History1#lqueue{queue = Q2, max = Max},
{next_state, StateName, StateData#state{history = History2}};
handle_info(_Info, StateName, StateData) ->
{next_state, StateName, StateData}.
terminate(Reason, _StateName,
#state{server_host = LServer, host = Host, room = Room} = StateData) ->
try
?INFO_MSG("Stopping MUC room ~ts@~ts", [Room, Host]),
ReasonT = case Reason of
shutdown ->
?T("You are being removed from the room "
"because of a system shutdown");
_ -> ?T("Room terminates")
end,
Packet = #presence{
type = unavailable,
sub_els = [#muc_user{items = [#muc_item{affiliation = none,
reason = ReasonT,
role = none}],
status_codes = [332,110]}]},
maps:fold(
fun(_, #user{nick = Nick, jid = JID}, _) ->
case Reason of
shutdown ->
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
JID, Packet,
?NS_MUCSUB_NODES_PARTICIPANTS,
StateData);
_ -> ok
end,
tab_remove_online_user(JID, StateData)
end, [], get_users_and_subscribers(StateData)),
disable_hibernate_timer(StateData),
case StateData#state.hibernate_timer of
hibernating ->
ok;
_ ->
add_to_log(room_existence, stopped, StateData),
case (StateData#state.config)#config.persistent of
false ->
ejabberd_hooks:run(room_destroyed, LServer, [LServer, Room, Host]);
_ ->
ok
end
end,
mod_muc:room_destroyed(Host, Room, self(), LServer)
catch ?EX_RULE(E, R, St) ->
StackTrace = ?EX_STACK(St),
mod_muc:room_destroyed(Host, Room, self(), LServer),
?ERROR_MSG("Got exception on room termination:~n** ~ts",
[misc:format_exception(2, E, R, StackTrace)])
end.
%%%----------------------------------------------------------------------
%%% Internal functions
%%%----------------------------------------------------------------------
-spec route(pid(), stanza()) -> ok.
route(Pid, Packet) ->
?DEBUG("Routing to MUC room ~p:~n~ts", [Pid, xmpp:pp(Packet)]),
#jid{lresource = Nick} = xmpp:get_to(Packet),
p1_fsm:send_event(Pid, {route, Nick, Packet}).
-spec process_groupchat_message(message(), state()) -> fsm_next().
process_groupchat_message(#message{from = From, lang = Lang} = Packet, StateData) ->
IsSubscriber = is_subscriber(From, StateData),
case is_user_online(From, StateData) orelse IsSubscriber orelse
is_user_allowed_message_nonparticipant(From, StateData)
of
true ->
{FromNick, Role} = get_participant_data(From, StateData),
if (Role == moderator) or (Role == participant) or IsSubscriber or
((StateData#state.config)#config.moderated == false) ->
Subject = check_subject(Packet),
{NewStateData1, IsAllowed} = case Subject of
[] -> {StateData, true};
_ ->
case
can_change_subject(Role,
IsSubscriber,
StateData)
of
true ->
NSD =
StateData#state{subject
=
Subject,
subject_author
=
FromNick},
store_room(NSD),
{NSD, true};
_ -> {StateData, false}
end
end,
case IsAllowed of
true ->
case
ejabberd_hooks:run_fold(muc_filter_message,
StateData#state.server_host,
Packet,
[StateData, FromNick])
of
drop ->
{next_state, normal_state, StateData};
NewPacket1 ->
NewPacket = xmpp:put_meta(xmpp:remove_subtag(NewPacket1, #nick{}),
muc_sender_real_jid, From),
Node = if Subject == [] -> ?NS_MUCSUB_NODES_MESSAGES;
true -> ?NS_MUCSUB_NODES_SUBJECT
end,
send_wrapped_multiple(
jid:replace_resource(StateData#state.jid, FromNick),
get_users_and_subscribers(StateData),
NewPacket, Node, NewStateData1),
NewStateData2 = case has_body_or_subject(NewPacket) of
true ->
add_message_to_history(FromNick, From,
NewPacket,
NewStateData1);
false ->
NewStateData1
end,
{next_state, normal_state, NewStateData2}
end;
_ ->
Err = case (StateData#state.config)#config.allow_change_subj of
true ->
xmpp:err_forbidden(
?T("Only moderators and participants are "
"allowed to change the subject in this "
"room"), Lang);
_ ->
xmpp:err_forbidden(
?T("Only moderators are allowed to change "
"the subject in this room"), Lang)
end,
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData}
end;
true ->
ErrText = ?T("Visitors are not allowed to send messages "
"to all occupants"),
Err = xmpp:err_forbidden(ErrText, Lang),
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData}
end;
false ->
ErrText = ?T("Only occupants are allowed to send messages "
"to the conference"),
Err = xmpp:err_not_acceptable(ErrText, Lang),
ejabberd_router:route_error(Packet, Err),
{next_state, normal_state, StateData}
end.
-spec process_normal_message(jid(), message(), state()) -> state().
process_normal_message(From, #message{lang = Lang} = Pkt, StateData) ->
Action = lists:foldl(
fun(_, {error, _} = Err) ->
Err;
(_, {ok, _} = Result) ->
Result;
(#muc_user{invites = [_|_] = Invites}, _) ->
case check_invitation(From, Invites, Lang, StateData) of
ok ->
{ok, Invites};
{error, _} = Err ->
Err
end;
(#xdata{type = submit, fields = Fs}, _) ->
try {ok, muc_request:decode(Fs)}
catch _:{muc_request, Why} ->
Txt = muc_request:format_error(Why),
{error, xmpp:err_bad_request(Txt, Lang)}
end;
(_, Acc) ->
Acc
end, ok, xmpp:get_els(Pkt)),
case Action of
{ok, [#muc_invite{}|_] = Invitations} ->
lists:foldl(
fun(Invitation, AccState) ->
process_invitation(From, Pkt, Invitation, Lang, AccState)
end, StateData, Invitations);
{ok, [{role, participant}]} ->
process_voice_request(From, Pkt, StateData);
{ok, VoiceApproval} ->
process_voice_approval(From, Pkt, VoiceApproval, StateData);
{error, Err} ->
ejabberd_router:route_error(Pkt, Err),
StateData;
ok ->
StateData
end.
-spec process_invitation(jid(), message(), muc_invite(), binary(), state()) -> state().
process_invitation(From, Pkt, Invitation, Lang, StateData) ->
IJID = route_invitation(From, Pkt, Invitation, Lang, StateData),
Config = StateData#state.config,
case Config#config.members_only of
true ->
case get_affiliation(IJID, StateData) of
none ->
NSD = set_affiliation(IJID, member, StateData),
send_affiliation(IJID, member, StateData),
store_room(NSD),
NSD;
_ ->
StateData
end;
false ->
StateData
end.
-spec process_voice_request(jid(), message(), state()) -> state().
process_voice_request(From, Pkt, StateData) ->
Lang = xmpp:get_lang(Pkt),
case (StateData#state.config)#config.allow_voice_requests of
true ->
MinInterval = (StateData#state.config)#config.voice_request_min_interval,
BareFrom = jid:remove_resource(jid:tolower(From)),
NowPriority = -erlang:system_time(microsecond),
CleanPriority = NowPriority + MinInterval * 1000000,
Times = clean_treap(StateData#state.last_voice_request_time,
CleanPriority),
case treap:lookup(BareFrom, Times) of
error ->
Times1 = treap:insert(BareFrom,
NowPriority,
true, Times),
NSD = StateData#state{last_voice_request_time = Times1},
send_voice_request(From, Lang, NSD),
NSD;
{ok, _, _} ->
ErrText = ?T("Please, wait for a while before sending "
"new voice request"),
Err = xmpp:err_resource_constraint(ErrText, Lang),
ejabberd_router:route_error(Pkt, Err),
StateData#state{last_voice_request_time = Times}
end;
false ->
ErrText = ?T("Voice requests are disabled in this conference"),
Err = xmpp:err_forbidden(ErrText, Lang),
ejabberd_router:route_error(Pkt, Err),
StateData
end.
-spec process_voice_approval(jid(), message(), [muc_request:property()], state()) -> state().
process_voice_approval(From, Pkt, VoiceApproval, StateData) ->
Lang = xmpp:get_lang(Pkt),
case is_moderator(From, StateData) of
true ->
case lists:keyfind(jid, 1, VoiceApproval) of
{_, TargetJid} ->
Allow = proplists:get_bool(request_allow, VoiceApproval),
case is_visitor(TargetJid, StateData) of
true when Allow ->
Reason = <<>>,
NSD = set_role(TargetJid, participant, StateData),
catch send_new_presence(
TargetJid, Reason, NSD, StateData),
NSD;
_ ->
StateData
end;
false ->
ErrText = ?T("Failed to extract JID from your voice "
"request approval"),
Err = xmpp:err_bad_request(ErrText, Lang),
ejabberd_router:route_error(Pkt, Err),
StateData
end;
false ->
ErrText = ?T("Only moderators can approve voice requests"),
Err = xmpp:err_not_allowed(ErrText, Lang),
ejabberd_router:route_error(Pkt, Err),
StateData
end.
-spec direct_iq_type(iq()) -> vcard | ping | request | response | stanza_error().
direct_iq_type(#iq{type = T, sub_els = SubEls, lang = Lang}) when T == get; T == set ->
case SubEls of
[El] ->
case xmpp:get_ns(El) of
?NS_VCARD when T == get -> vcard;
?NS_PING when T == get -> ping;
_ -> request
end;
[] ->
xmpp:err_bad_request(?T("No child elements found"), Lang);
[_|_] ->
xmpp:err_bad_request(?T("Too many child elements"), Lang)
end;
direct_iq_type(#iq{}) ->
response.
%% @doc Check if this non participant can send message to room.
%%
%% XEP-0045 v1.23:
%% 7.9 Sending a Message to All Occupants
%% an implementation MAY allow users with certain privileges
%% (e.g., a room owner, room admin, or service-level admin)
%% to send messages to the room even if those users are not occupants.
-spec is_user_allowed_message_nonparticipant(jid(), state()) -> boolean().
is_user_allowed_message_nonparticipant(JID,
StateData) ->
case get_service_affiliation(JID, StateData) of
owner -> true;
_ -> false
end.
%% @doc Get information of this participant, or default values.
%% If the JID is not a participant, return values for a service message.
-spec get_participant_data(jid(), state()) -> {binary(), role()}.
get_participant_data(From, StateData) ->
try maps:get(jid:tolower(From), StateData#state.users) of
#user{nick = FromNick, role = Role} ->
{FromNick, Role}
catch _:{badkey, _} ->
try maps:get(jid:tolower(jid:remove_resource(From)),
StateData#state.subscribers) of
#subscriber{nick = FromNick} ->
{FromNick, none}
catch _:{badkey, _} ->
{<<"">>, moderator}
end
end.
-spec process_presence(binary(), presence(), state()) -> fsm_transition().
process_presence(Nick, #presence{from = From, type = Type0} = Packet0, StateData) ->
IsOnline = is_user_online(From, StateData),
if Type0 == available;
IsOnline and ((Type0 == unavailable) or (Type0 == error)) ->
case ejabberd_hooks:run_fold(muc_filter_presence,
StateData#state.server_host,
Packet0,
[StateData, Nick]) of
drop ->
{next_state, normal_state, StateData};
#presence{} = Packet ->
close_room_if_temporary_and_empty(
do_process_presence(Nick, Packet, StateData))
end;
true ->
{next_state, normal_state, StateData}
end.
-spec do_process_presence(binary(), presence(), state()) -> state().
do_process_presence(Nick, #presence{from = From, type = available, lang = Lang} = Packet,
StateData) ->
case is_user_online(From, StateData) of
false ->
add_new_user(From, Nick, Packet, StateData);
true ->
case is_nick_change(From, Nick, StateData) of
true ->
case {nick_collision(From, Nick, StateData),
mod_muc:can_use_nick(StateData#state.server_host,
StateData#state.host,
From, Nick),
{(StateData#state.config)#config.allow_visitor_nickchange,
is_visitor(From, StateData)}} of
{_, _, {false, true}} ->
Packet1 = Packet#presence{sub_els = [#muc{}]},
ErrText = ?T("Visitors are not allowed to change their "
"nicknames in this room"),
Err = xmpp:err_not_allowed(ErrText, Lang),
ejabberd_router:route_error(Packet1, Err),
StateData;
{true, _, _} ->
Packet1 = Packet#presence{sub_els = [#muc{}]},
ErrText = ?T("That nickname is already in use by another "
"occupant"),
Err = xmpp:err_conflict(ErrText, Lang),
ejabberd_router:route_error(Packet1, Err),
StateData;
{_, false, _} ->
Packet1 = Packet#presence{sub_els = [#muc{}]},
Err = case Nick of
<<>> ->
xmpp:err_jid_malformed(?T("Nickname can't be empty"),
Lang);
_ ->
xmpp:err_conflict(?T("That nickname is registered"
" by another person"), Lang)
end,
ejabberd_router:route_error(Packet1, Err),
StateData;
_ ->
change_nick(From, Nick, StateData)
end;
false ->
Stanza = maybe_strip_status_from_presence(
From, Packet, StateData),
NewState = add_user_presence(From, Stanza,
StateData),
case xmpp:has_subtag(Packet, #muc{}) of
true ->
send_initial_presences_and_messages(
From, Nick, Packet, NewState, StateData);
false ->
send_new_presence(From, NewState, StateData)
end,
NewState
end
end;
do_process_presence(Nick, #presence{from = From, type = unavailable} = Packet,
StateData) ->
NewPacket = case {(StateData#state.config)#config.allow_visitor_status,
is_visitor(From, StateData)} of
{false, true} ->
strip_status(Packet);
_ -> Packet
end,
NewState = add_user_presence_un(From, NewPacket, StateData),
case maps:get(Nick, StateData#state.nicks, []) of
[_, _ | _] ->
Aff = get_affiliation(From, StateData),
Item = #muc_item{affiliation = Aff, role = none, jid = From},
Pres = xmpp:set_subtag(
Packet, #muc_user{items = [Item],
status_codes = [110]}),
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
From, Pres, ?NS_MUCSUB_NODES_PRESENCE, StateData);
_ ->
send_new_presence(From, NewState, StateData)
end,
Reason = xmpp:get_text(NewPacket#presence.status),
remove_online_user(From, NewState, Reason);
do_process_presence(_Nick, #presence{from = From, type = error, lang = Lang} = Packet,
StateData) ->
ErrorText = ?T("It is not allowed to send error messages to the"
" room. The participant (~s) has sent an error "
"message (~s) and got kicked from the room"),
expulse_participant(Packet, From, StateData,
translate:translate(Lang, ErrorText)).
-spec maybe_strip_status_from_presence(jid(), presence(),
state()) -> presence().
maybe_strip_status_from_presence(From, Packet, StateData) ->
case {(StateData#state.config)#config.allow_visitor_status,
is_visitor(From, StateData)} of
{false, true} ->
strip_status(Packet);
_Allowed -> Packet
end.
-spec close_room_if_temporary_and_empty(state()) -> fsm_transition().
close_room_if_temporary_and_empty(StateData1) ->
case not (StateData1#state.config)#config.persistent
andalso maps:size(StateData1#state.users) == 0
andalso maps:size(StateData1#state.subscribers) == 0 of
true ->
?INFO_MSG("Destroyed MUC room ~ts because it's temporary "
"and empty",
[jid:encode(StateData1#state.jid)]),
add_to_log(room_existence, destroyed, StateData1),
forget_room(StateData1),
{stop, normal, StateData1};
_ -> {next_state, normal_state, StateData1}
end.
-spec get_users_and_subscribers(state()) -> users().
get_users_and_subscribers(StateData) ->
OnlineSubscribers = maps:fold(
fun(LJID, _, Acc) ->
LBareJID = jid:remove_resource(LJID),
case is_subscriber(LBareJID, StateData) of
true ->
?SETS:add_element(LBareJID, Acc);
false ->
Acc
end
end, ?SETS:new(), StateData#state.users),
maps:fold(
fun(LBareJID, #subscriber{nick = Nick}, Acc) ->
case ?SETS:is_element(LBareJID, OnlineSubscribers) of
false ->
maps:put(LBareJID,
#user{jid = jid:make(LBareJID),
nick = Nick,
role = none,
last_presence = undefined},
Acc);
true ->
Acc
end
end, StateData#state.users, StateData#state.subscribers).
-spec is_user_online(jid(), state()) -> boolean().
is_user_online(JID, StateData) ->
LJID = jid:tolower(JID),
maps:is_key(LJID, StateData#state.users).
-spec is_subscriber(jid(), state()) -> boolean().
is_subscriber(JID, StateData) ->
LJID = jid:tolower(jid:remove_resource(JID)),
maps:is_key(LJID, StateData#state.subscribers).
%% Check if the user is occupant of the room, or at least is an admin or owner.
-spec is_occupant_or_admin(jid(), state()) -> boolean().
is_occupant_or_admin(JID, StateData) ->
FAffiliation = get_affiliation(JID, StateData),
FRole = get_role(JID, StateData),
case FRole /= none orelse
FAffiliation == member orelse
FAffiliation == admin orelse FAffiliation == owner
of
true -> true;
_ -> false
end.
%% Decide the fate of the message and its sender
%% Returns: continue_delivery | forget_message | {expulse_sender, Reason}
-spec decide_fate_message(message(), jid(), state()) ->
continue_delivery | forget_message |
{expulse_sender, binary()}.
decide_fate_message(#message{type = error} = Msg,
From, StateData) ->
Err = xmpp:get_error(Msg),
PD = case check_error_kick(Err) of
%% If this is an error stanza and its condition matches a criteria
true ->
Reason = str:format("This participant is considered a ghost "
"and is expulsed: ~s",
[jid:encode(From)]),
{expulse_sender, Reason};
false -> continue_delivery
end,
case PD of
{expulse_sender, R} ->
case is_user_online(From, StateData) of
true -> {expulse_sender, R};
false -> forget_message
end;
Other -> Other
end;
decide_fate_message(_, _, _) -> continue_delivery.
%% Check if the elements of this error stanza indicate
%% that the sender is a dead participant.
%% If so, return true to kick the participant.
-spec check_error_kick(stanza_error()) -> boolean().
check_error_kick(#stanza_error{reason = Reason}) ->
case Reason of
#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;
_ -> false
end;
check_error_kick(undefined) ->
false.
-spec get_error_condition(stanza_error()) -> string().
get_error_condition(#stanza_error{reason = Reason}) ->
case Reason of
#gone{} -> "gone";
#redirect{} -> "redirect";
Atom -> atom_to_list(Atom)
end;
get_error_condition(undefined) ->
"undefined".
-spec get_error_text(stanza_error()) -> binary().
get_error_text(#stanza_error{text = Txt}) ->
xmpp:get_text(Txt).
-spec make_reason(stanza(), jid(), state(), binary()) -> binary().
make_reason(Packet, From, StateData, Reason1) ->
#user{nick = FromNick} = maps:get(jid:tolower(From), StateData#state.users),
Condition = get_error_condition(xmpp:get_error(Packet)),
str:format(Reason1, [FromNick, Condition]).
-spec expulse_participant(stanza(), jid(), state(), binary()) ->
state().
expulse_participant(Packet, From, StateData, Reason1) ->
Reason2 = make_reason(Packet, From, StateData, Reason1),
NewState = add_user_presence_un(From,
#presence{type = unavailable,
status = xmpp:mk_text(Reason2)},
StateData),
LJID = jid:tolower(From),
#user{nick = Nick} = maps:get(LJID, StateData#state.users),
case maps:get(Nick, StateData#state.nicks, []) of
[_, _ | _] ->
Aff = get_affiliation(From, StateData),
Item = #muc_item{affiliation = Aff, role = none, jid = From},
Pres = xmpp:set_subtag(
Packet, #muc_user{items = [Item],
status_codes = [110]}),
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
From, Pres, ?NS_MUCSUB_NODES_PRESENCE, StateData);
_ ->
send_new_presence(From, NewState, StateData)
end,
remove_online_user(From, NewState).
-spec get_owners(state()) -> [jid:jid()].
get_owners(StateData) ->
maps:fold(
fun(LJID, owner, Acc) ->
[jid:make(LJID)|Acc];
(LJID, {owner, _}, Acc) ->
[jid:make(LJID)|Acc];
(_, _, Acc) ->
Acc
end, [], StateData#state.affiliations).
-spec set_affiliation(jid(), affiliation(), state()) -> state().
set_affiliation(JID, Affiliation, StateData) ->
set_affiliation(JID, Affiliation, StateData, <<"">>).
-spec set_affiliation(jid(), affiliation(), state(), binary()) -> state().
set_affiliation(JID, Affiliation,
#state{config = #config{persistent = false}} = StateData,
Reason) ->
set_affiliation_fallback(JID, Affiliation, StateData, Reason);
set_affiliation(JID, Affiliation, StateData, Reason) ->
ServerHost = StateData#state.server_host,
Room = StateData#state.room,
Host = StateData#state.host,
Mod = gen_mod:db_mod(ServerHost, mod_muc),
case Mod:set_affiliation(ServerHost, Room, Host, JID, Affiliation, Reason) of
ok ->
StateData;
{error, _} ->
set_affiliation_fallback(JID, Affiliation, StateData, Reason)
end.
-spec set_affiliation_fallback(jid(), affiliation(), state(), binary()) -> state().
set_affiliation_fallback(JID, Affiliation, StateData, Reason) ->
LJID = jid:remove_resource(jid:tolower(JID)),
Affiliations = case Affiliation of
none ->
maps:remove(LJID, StateData#state.affiliations);
_ ->
maps:put(LJID, {Affiliation, Reason},
StateData#state.affiliations)
end,
StateData#state{affiliations = Affiliations}.
-spec set_affiliations(affiliations(), state()) -> state().
set_affiliations(Affiliations,
#state{config = #config{persistent = false}} = StateData) ->
set_affiliations_fallback(Affiliations, StateData);
set_affiliations(Affiliations, StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
ServerHost = StateData#state.server_host,
Mod = gen_mod:db_mod(ServerHost, mod_muc),
case Mod:set_affiliations(ServerHost, Room, Host, Affiliations) of
ok ->
StateData;
{error, _} ->
set_affiliations_fallback(Affiliations, StateData)
end.
-spec set_affiliations_fallback(affiliations(), state()) -> state().
set_affiliations_fallback(Affiliations, StateData) ->
StateData#state{affiliations = Affiliations}.
-spec get_affiliation(ljid() | jid(), state()) -> affiliation().
get_affiliation(#jid{} = JID, StateData) ->
case get_service_affiliation(JID, StateData) of
owner ->
owner;
none ->
case do_get_affiliation(JID, StateData) of
{Affiliation, _Reason} -> Affiliation;
Affiliation -> Affiliation
end
end;
get_affiliation(LJID, StateData) ->
get_affiliation(jid:make(LJID), StateData).
-spec do_get_affiliation(jid(), state()) -> affiliation() | {affiliation(), binary()}.
do_get_affiliation(JID, #state{config = #config{persistent = false}} = StateData) ->
do_get_affiliation_fallback(JID, StateData);
do_get_affiliation(JID, StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
LServer = JID#jid.lserver,
LUser = JID#jid.luser,
ServerHost = StateData#state.server_host,
Mod = gen_mod:db_mod(ServerHost, mod_muc),
case Mod:get_affiliation(ServerHost, Room, Host, LUser, LServer) of
{error, _} ->
do_get_affiliation_fallback(JID, StateData);
{ok, Affiliation} ->
Affiliation
end.
-spec do_get_affiliation_fallback(jid(), state()) -> affiliation() | {affiliation(), binary()}.
do_get_affiliation_fallback(JID, StateData) ->
LJID = jid:tolower(JID),
try maps:get(LJID, StateData#state.affiliations)
catch _:{badkey, _} ->
BareLJID = jid:remove_resource(LJID),
try maps:get(BareLJID, StateData#state.affiliations)
catch _:{badkey, _} ->
DomainLJID = setelement(1, LJID, <<"">>),
try maps:get(DomainLJID, StateData#state.affiliations)
catch _:{badkey, _} ->
DomainBareLJID = jid:remove_resource(DomainLJID),
try maps:get(DomainBareLJID, StateData#state.affiliations)
catch _:{badkey, _} -> none
end
end
end
end.
-spec get_affiliations(state()) -> affiliations().
get_affiliations(#state{config = #config{persistent = false}} = StateData) ->
get_affiliations_callback(StateData);
get_affiliations(StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
ServerHost = StateData#state.server_host,
Mod = gen_mod:db_mod(ServerHost, mod_muc),
case Mod:get_affiliations(ServerHost, Room, Host) of
{error, _} ->
get_affiliations_callback(StateData);
{ok, Affiliations} ->
Affiliations
end.
-spec get_affiliations_callback(state()) -> affiliations().
get_affiliations_callback(StateData) ->
StateData#state.affiliations.
-spec get_service_affiliation(jid(), state()) -> owner | none.
get_service_affiliation(JID, StateData) ->
{_AccessRoute, _AccessCreate, AccessAdmin,
_AccessPersistent, _AccessMam} =
StateData#state.access,
case acl:match_rule(StateData#state.server_host,
AccessAdmin, JID)
of
allow -> owner;
_ -> none
end.
-spec set_role(jid(), role(), state()) -> state().
set_role(JID, Role, StateData) ->
LJID = jid:tolower(JID),
LJIDs = case LJID of
{U, S, <<"">>} ->
maps:fold(fun (J, _, Js) ->
case J of
{U, S, _} -> [J | Js];
_ -> Js
end
end, [], StateData#state.users);
_ ->
case maps:is_key(LJID, StateData#state.users) of
true -> [LJID];
_ -> []
end
end,
{Users, Nicks} =
case Role of
none ->
lists:foldl(
fun (J, {Us, Ns}) ->
NewNs = try maps:get(J, Us) of
#user{nick = Nick} ->
maps:remove(Nick, Ns)
catch _:{badkey, _} ->
Ns
end,
{maps:remove(J, Us), NewNs}
end,
{StateData#state.users, StateData#state.nicks}, LJIDs);
_ ->
{lists:foldl(
fun (J, Us) ->
User = maps:get(J, Us),
if User#user.last_presence == undefined ->
Us;
true ->
maps:put(J, User#user{role = Role}, Us)
end
end, StateData#state.users, LJIDs),
StateData#state.nicks}
end,
StateData#state{users = Users, nicks = Nicks}.
-spec get_role(jid(), state()) -> role().
get_role(JID, StateData) ->
LJID = jid:tolower(JID),
try maps:get(LJID, StateData#state.users) of
#user{role = Role} -> Role
catch _:{badkey, _} -> none
end.
-spec get_default_role(affiliation(), state()) -> role().
get_default_role(Affiliation, StateData) ->
case Affiliation of
owner -> moderator;
admin -> moderator;
member -> participant;
outcast -> none;
none ->
case (StateData#state.config)#config.members_only of
true -> none;
_ ->
case (StateData#state.config)#config.members_by_default
of
true -> participant;
_ -> visitor
end
end
end.
-spec is_visitor(jid(), state()) -> boolean().
is_visitor(Jid, StateData) ->
get_role(Jid, StateData) =:= visitor.
-spec is_moderator(jid(), state()) -> boolean().
is_moderator(Jid, StateData) ->
get_role(Jid, StateData) =:= moderator.
-spec get_max_users(state()) -> non_neg_integer().
get_max_users(StateData) ->
MaxUsers = (StateData#state.config)#config.max_users,
ServiceMaxUsers = get_service_max_users(StateData),
if MaxUsers =< ServiceMaxUsers -> MaxUsers;
true -> ServiceMaxUsers
end.
-spec get_service_max_users(state()) -> pos_integer().
get_service_max_users(StateData) ->
mod_muc_opt:max_users(StateData#state.server_host).
-spec get_max_users_admin_threshold(state()) -> pos_integer().
get_max_users_admin_threshold(StateData) ->
mod_muc_opt:max_users_admin_threshold(StateData#state.server_host).
-spec room_queue_new(binary(), ejabberd_shaper:shaper(), _) -> p1_queue:queue({message | presence, jid()}) | undefined.
room_queue_new(ServerHost, Shaper, QueueType) ->
HaveRoomShaper = Shaper /= none,
HaveMessageShaper = mod_muc_opt:user_message_shaper(ServerHost) /= none,
HavePresenceShaper = mod_muc_opt:user_presence_shaper(ServerHost) /= none,
HaveMinMessageInterval = mod_muc_opt:min_message_interval(ServerHost) /= 0,
HaveMinPresenceInterval = mod_muc_opt:min_presence_interval(ServerHost) /= 0,
if HaveRoomShaper or HaveMessageShaper or HavePresenceShaper
or HaveMinMessageInterval or HaveMinPresenceInterval ->
p1_queue:new(QueueType);
true ->
undefined
end.
-spec get_user_activity(jid(), state()) -> #activity{}.
get_user_activity(JID, StateData) ->
case treap:lookup(jid:tolower(JID),
StateData#state.activity)
of
{ok, _P, A} -> A;
error ->
MessageShaper =
ejabberd_shaper:new(mod_muc_opt:user_message_shaper(StateData#state.server_host)),
PresenceShaper =
ejabberd_shaper:new(mod_muc_opt:user_presence_shaper(StateData#state.server_host)),
#activity{message_shaper = MessageShaper,
presence_shaper = PresenceShaper}
end.
-spec store_user_activity(jid(), #activity{}, state()) -> state().
store_user_activity(JID, UserActivity, StateData) ->
MinMessageInterval =
trunc(mod_muc_opt:min_message_interval(StateData#state.server_host) * 1000),
MinPresenceInterval =
trunc(mod_muc_opt:min_presence_interval(StateData#state.server_host) * 1000),
Key = jid:tolower(JID),
Now = erlang:system_time(microsecond),
Activity1 = clean_treap(StateData#state.activity,
{1, -Now}),
Activity = case treap:lookup(Key, Activity1) of
{ok, _P, _A} -> treap:delete(Key, Activity1);
error -> Activity1
end,
StateData1 = case MinMessageInterval == 0 andalso
MinPresenceInterval == 0 andalso
UserActivity#activity.message_shaper == none andalso
UserActivity#activity.presence_shaper == none
andalso
UserActivity#activity.message == undefined andalso
UserActivity#activity.presence == undefined
of
true -> StateData#state{activity = Activity};
false ->
case UserActivity#activity.message == undefined andalso
UserActivity#activity.presence == undefined
of
true ->
{_, MessageShaperInterval} =
ejabberd_shaper:update(UserActivity#activity.message_shaper,
100000),
{_, PresenceShaperInterval} =
ejabberd_shaper:update(UserActivity#activity.presence_shaper,
100000),
Delay = lists:max([MessageShaperInterval,
PresenceShaperInterval,
MinMessageInterval,
MinPresenceInterval])
* 1000,
Priority = {1, -(Now + Delay)},
StateData#state{activity =
treap:insert(Key, Priority,
UserActivity,
Activity)};
false ->
Priority = {0, 0},
StateData#state{activity =
treap:insert(Key, Priority,
UserActivity,
Activity)}
end
end,
reset_hibernate_timer(StateData1).
-spec clean_treap(treap:treap(), integer() | {1, integer()}) -> treap:treap().
clean_treap(Treap, CleanPriority) ->
case treap:is_empty(Treap) of
true -> Treap;
false ->
{_Key, Priority, _Value} = treap:get_root(Treap),
if Priority > CleanPriority ->
clean_treap(treap:delete_root(Treap), CleanPriority);
true -> Treap
end
end.
-spec prepare_room_queue(state()) -> state().
prepare_room_queue(StateData) ->
case p1_queue:out(StateData#state.room_queue) of
{{value, {message, From}}, _RoomQueue} ->
Activity = get_user_activity(From, StateData),
Packet = Activity#activity.message,
Size = element_size(Packet),
{RoomShaper, RoomShaperInterval} =
ejabberd_shaper:update(StateData#state.room_shaper, Size),
erlang:send_after(RoomShaperInterval, self(),
process_room_queue),
StateData#state{room_shaper = RoomShaper};
{{value, {presence, From}}, _RoomQueue} ->
Activity = get_user_activity(From, StateData),
{_Nick, Packet} = Activity#activity.presence,
Size = element_size(Packet),
{RoomShaper, RoomShaperInterval} =
ejabberd_shaper:update(StateData#state.room_shaper, Size),
erlang:send_after(RoomShaperInterval, self(),
process_room_queue),
StateData#state{room_shaper = RoomShaper};
{empty, _} -> StateData
end.
-spec update_online_user(jid(), #user{}, state()) -> state().
update_online_user(JID, #user{nick = Nick} = User, StateData) ->
LJID = jid:tolower(JID),
add_to_log(join, Nick, StateData),
Nicks1 = try maps:get(LJID, StateData#state.users) of
#user{nick = OldNick} ->
case lists:delete(
LJID, maps:get(OldNick, StateData#state.nicks)) of
[] ->
maps:remove(OldNick, StateData#state.nicks);
LJIDs ->
maps:put(OldNick, LJIDs, StateData#state.nicks)
end
catch _:{badkey, _} ->
StateData#state.nicks
end,
Nicks = maps:update_with(Nick,
fun (LJIDs) -> [LJID|LJIDs -- [LJID]] end,
[LJID], Nicks1),
Users = maps:update_with(LJID,
fun(U) ->
U#user{nick = Nick}
end, User, StateData#state.users),
NewStateData = StateData#state{users = Users, nicks = Nicks},
case {maps:get(LJID, StateData#state.users, error),
maps:get(LJID, NewStateData#state.users, error)} of
{#user{nick = Old}, #user{nick = New}} when Old /= New ->
send_nick_changing(JID, Old, NewStateData, true, true);
_ ->
ok
end,
NewStateData.
-spec set_subscriber(jid(), binary(), [binary()], state()) -> state().
set_subscriber(JID, Nick, Nodes,
#state{room = Room, host = Host, server_host = ServerHost} = StateData) ->
BareJID = jid:remove_resource(JID),
LBareJID = jid:tolower(BareJID),
Subscribers = maps:put(LBareJID,
#subscriber{jid = BareJID,
nick = Nick,
nodes = Nodes},
StateData#state.subscribers),
Nicks = maps:put(Nick, [LBareJID], StateData#state.subscriber_nicks),
NewStateData = StateData#state{subscribers = Subscribers,
subscriber_nicks = Nicks},
store_room(NewStateData, [{add_subscription, BareJID, Nick, Nodes}]),
case not maps:is_key(LBareJID, StateData#state.subscribers) of
true ->
send_subscriptions_change_notifications(BareJID, Nick, subscribe, NewStateData),
ejabberd_hooks:run(muc_subscribed, ServerHost, [ServerHost, Room, Host, BareJID]);
_ ->
ok
end,
NewStateData.
-spec add_online_user(jid(), binary(), role(), state()) -> state().
add_online_user(JID, Nick, Role, StateData) ->
tab_add_online_user(JID, StateData),
User = #user{jid = JID, nick = Nick, role = Role},
reset_hibernate_timer(update_online_user(JID, User, StateData)).
-spec remove_online_user(jid(), state()) -> state().
remove_online_user(JID, StateData) ->
remove_online_user(JID, StateData, <<"">>).
-spec remove_online_user(jid(), state(), binary()) -> state().
remove_online_user(JID, StateData, Reason) ->
LJID = jid:tolower(JID),
#user{nick = Nick} = maps:get(LJID, StateData#state.users),
add_to_log(leave, {Nick, Reason}, StateData),
tab_remove_online_user(JID, StateData),
Users = maps:remove(LJID, StateData#state.users),
Nicks = try maps:get(Nick, StateData#state.nicks) of
[LJID] ->
maps:remove(Nick, StateData#state.nicks);
U ->
maps:put(Nick, U -- [LJID], StateData#state.nicks)
catch _:{badkey, _} ->
StateData#state.nicks
end,
reset_hibernate_timer(StateData#state{users = Users, nicks = Nicks}).
-spec filter_presence(presence()) -> presence().
filter_presence(Presence) ->
Els = lists:filter(
fun(El) ->
XMLNS = xmpp:get_ns(El),
case catch binary:part(XMLNS, 0, size(?NS_MUC)) of
?NS_MUC -> false;
_ -> true
end
end, xmpp:get_els(Presence)),
xmpp:set_els(Presence, Els).
-spec strip_status(presence()) -> presence().
strip_status(Presence) ->
Presence#presence{status = []}.
-spec add_user_presence(jid(), presence(), state()) -> state().
add_user_presence(JID, Presence, StateData) ->
LJID = jid:tolower(JID),
FPresence = filter_presence(Presence),
Users = maps:update_with(LJID,
fun (#user{} = User) ->
User#user{last_presence = FPresence}
end, StateData#state.users),
StateData#state{users = Users}.
-spec add_user_presence_un(jid(), presence(), state()) -> state().
add_user_presence_un(JID, Presence, StateData) ->
LJID = jid:tolower(JID),
FPresence = filter_presence(Presence),
Users = maps:update_with(LJID,
fun (#user{} = User) ->
User#user{last_presence = FPresence,
role = none}
end, StateData#state.users),
StateData#state{users = Users}.
%% Find and return a list of the full JIDs of the users of Nick.
%% Return jid record.
-spec find_jids_by_nick(binary(), state()) -> [jid()].
find_jids_by_nick(Nick, StateData) ->
Users = case maps:get(Nick, StateData#state.nicks, []) of
[] -> maps:get(Nick, StateData#state.subscriber_nicks, []);
Us -> Us
end,
[jid:make(LJID) || LJID <- Users].
%% Find and return the full JID of the user of Nick with
%% highest-priority presence. Return jid record.
-spec find_jid_by_nick(binary(), state()) -> jid() | false.
find_jid_by_nick(Nick, StateData) ->
try maps:get(Nick, StateData#state.nicks) of
[User] -> jid:make(User);
[FirstUser | Users] ->
#user{last_presence = FirstPresence} =
maps:get(FirstUser, StateData#state.users),
{LJID, _} = lists:foldl(
fun(Compare, {HighestUser, HighestPresence}) ->
#user{last_presence = P1} =
maps:get(Compare, StateData#state.users),
case higher_presence(P1, HighestPresence) of
true -> {Compare, P1};
false -> {HighestUser, HighestPresence}
end
end, {FirstUser, FirstPresence}, Users),
jid:make(LJID)
catch _:{badkey, _} ->
false
end.
-spec higher_presence(undefined | presence(),
undefined | presence()) -> boolean().
higher_presence(Pres1, Pres2) when Pres1 /= undefined, Pres2 /= undefined ->
Pri1 = get_priority_from_presence(Pres1),
Pri2 = get_priority_from_presence(Pres2),
Pri1 > Pri2;
higher_presence(Pres1, Pres2) ->
Pres1 > Pres2.
-spec get_priority_from_presence(presence()) -> integer().
get_priority_from_presence(#presence{priority = Prio}) ->
case Prio of
undefined -> 0;
_ -> Prio
end.
-spec find_nick_by_jid(jid(), state()) -> binary().
find_nick_by_jid(JID, StateData) ->
LJID = jid:tolower(JID),
#user{nick = Nick} = maps:get(LJID, StateData#state.users),
Nick.
-spec is_nick_change(jid(), binary(), state()) -> boolean().
is_nick_change(JID, Nick, StateData) ->
LJID = jid:tolower(JID),
case Nick of
<<"">> -> false;
_ ->
#user{nick = OldNick} = maps:get(LJID, StateData#state.users),
Nick /= OldNick
end.
-spec nick_collision(jid(), binary(), state()) -> boolean().
nick_collision(User, Nick, StateData) ->
UserOfNick = case find_jid_by_nick(Nick, StateData) of
false ->
try maps:get(Nick, StateData#state.subscriber_nicks) of
[J] -> J
catch _:{badkey, _} -> false
end;
J -> J
end,
(UserOfNick /= false andalso
jid:remove_resource(jid:tolower(UserOfNick))
/= jid:remove_resource(jid:tolower(User))).
-spec add_new_user(jid(), binary(), presence(), state()) -> state();
(jid(), binary(), iq(), state()) -> {error, stanza_error()} |
{ignore, state()} |
{result, muc_subscribe(), state()}.
add_new_user(From, Nick, Packet, StateData) ->
Lang = xmpp:get_lang(Packet),
MaxUsers = get_max_users(StateData),
MaxAdminUsers = MaxUsers +
get_max_users_admin_threshold(StateData),
NUsers = maps:size(StateData#state.users),
Affiliation = get_affiliation(From, StateData),
ServiceAffiliation = get_service_affiliation(From,
StateData),
NConferences = tab_count_user(From, StateData),
MaxConferences =
mod_muc_opt:max_user_conferences(StateData#state.server_host),
Collision = nick_collision(From, Nick, StateData),
IsSubscribeRequest = not is_record(Packet, presence),
case {(ServiceAffiliation == owner orelse
((Affiliation == admin orelse Affiliation == owner)
andalso NUsers < MaxAdminUsers)
orelse NUsers < MaxUsers)
andalso NConferences < MaxConferences,
Collision,
mod_muc:can_use_nick(StateData#state.server_host,
StateData#state.host, From, Nick),
get_default_role(Affiliation, StateData)}
of
{false, _, _, _} when NUsers >= MaxUsers orelse NUsers >= MaxAdminUsers ->
Txt = ?T("Too many users in this conference"),
Err = xmpp:err_resource_constraint(Txt, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{false, _, _, _} when NConferences >= MaxConferences ->
Txt = ?T("You have joined too many conferences"),
Err = xmpp:err_resource_constraint(Txt, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{false, _, _, _} ->
Err = xmpp:err_service_unavailable(),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{_, _, _, none} ->
Err = case Affiliation of
outcast ->
ErrText = ?T("You have been banned from this room"),
xmpp:err_forbidden(ErrText, Lang);
_ ->
ErrText = ?T("Membership is required to enter this room"),
xmpp:err_registration_required(ErrText, Lang)
end,
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{_, true, _, _} ->
ErrText = ?T("That nickname is already in use by another occupant"),
Err = xmpp:err_conflict(ErrText, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{_, _, false, _} ->
Err = case Nick of
<<>> ->
xmpp:err_jid_malformed(?T("Nickname can't be empty"),
Lang);
_ ->
xmpp:err_conflict(?T("That nickname is registered"
" by another person"), Lang)
end,
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
{_, _, _, Role} ->
case check_password(ServiceAffiliation, Affiliation,
Packet, From, StateData)
of
true ->
Nodes = get_subscription_nodes(Packet),
NewStateData =
if not IsSubscribeRequest ->
NewState = add_user_presence(
From, Packet,
add_online_user(From, Nick, Role,
StateData)),
send_initial_presences_and_messages(
From, Nick, Packet, NewState, StateData),
NewState;
true ->
set_subscriber(From, Nick, Nodes, StateData)
end,
ResultState =
case NewStateData#state.just_created of
true ->
NewStateData#state{just_created = erlang:system_time(microsecond)};
_ ->
Robots = maps:remove(From, StateData#state.robots),
NewStateData#state{robots = Robots}
end,
if not IsSubscribeRequest -> ResultState;
true -> {result, subscribe_result(Packet), ResultState}
end;
need_password ->
ErrText = ?T("A password is required to enter this room"),
Err = xmpp:err_not_authorized(ErrText, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
captcha_required ->
SID = xmpp:get_id(Packet),
RoomJID = StateData#state.jid,
To = jid:replace_resource(RoomJID, Nick),
Limiter = {From#jid.luser, From#jid.lserver},
case ejabberd_captcha:create_captcha(SID, RoomJID, To,
Lang, Limiter, From)
of
{ok, ID, Body, CaptchaEls} ->
MsgPkt = #message{from = RoomJID,
to = From,
id = ID, body = Body,
sub_els = CaptchaEls},
Robots = maps:put(From, {Nick, Packet},
StateData#state.robots),
ejabberd_router:route(MsgPkt),
NewState = StateData#state{robots = Robots},
if not IsSubscribeRequest ->
NewState;
true ->
{ignore, NewState}
end;
{error, limit} ->
ErrText = ?T("Too many CAPTCHA requests"),
Err = xmpp:err_resource_constraint(ErrText, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end;
_ ->
ErrText = ?T("Unable to generate a CAPTCHA"),
Err = xmpp:err_internal_server_error(ErrText, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end
end;
_ ->
ErrText = ?T("Incorrect password"),
Err = xmpp:err_not_authorized(ErrText, Lang),
if not IsSubscribeRequest ->
ejabberd_router:route_error(Packet, Err),
StateData;
true ->
{error, Err}
end
end
end.
-spec check_password(affiliation(), affiliation(),
presence() | iq(), jid(), state()) ->
boolean() | need_password | captcha_required.
check_password(owner, _Affiliation, _Packet, _From,
_StateData) ->
%% Don't check pass if user is owner in MUC service (access_admin option)
true;
check_password(_ServiceAffiliation, Affiliation, Packet,
From, StateData) ->
case (StateData#state.config)#config.password_protected
of
false -> check_captcha(Affiliation, From, StateData);
true ->
Pass = extract_password(Packet),
case Pass of
false -> need_password;
_ ->
case (StateData#state.config)#config.password of
Pass -> true;
_ -> false
end
end
end.
-spec check_captcha(affiliation(), jid(), state()) -> true | captcha_required.
check_captcha(Affiliation, From, StateData) ->
case (StateData#state.config)#config.captcha_protected
andalso ejabberd_captcha:is_feature_available()
of
true when Affiliation == none ->
case maps:get(From, StateData#state.robots, error) of
passed -> true;
_ ->
WList =
(StateData#state.config)#config.captcha_whitelist,
#jid{luser = U, lserver = S, lresource = R} = From,
case (?SETS):is_element({U, S, R}, WList) of
true -> true;
false ->
case (?SETS):is_element({U, S, <<"">>}, WList) of
true -> true;
false ->
case (?SETS):is_element({<<"">>, S, <<"">>}, WList)
of
true -> true;
false -> captcha_required
end
end
end
end;
_ -> true
end.
-spec extract_password(presence() | iq()) -> binary() | false.
extract_password(#presence{} = Pres) ->
case xmpp:get_subtag(Pres, #muc{}) of
#muc{password = Password} when is_binary(Password) ->
Password;
_ ->
false
end;
extract_password(#iq{} = IQ) ->
case xmpp:get_subtag(IQ, #muc_subscribe{}) of
#muc_subscribe{password = Password} when Password /= <<"">> ->
Password;
_ ->
false
end.
-spec get_history(binary(), stanza(), state()) -> [lqueue_elem()].
get_history(Nick, Packet, #state{history = History}) ->
case xmpp:get_subtag(Packet, #muc{}) of
#muc{history = #muc_history{} = MUCHistory} ->
Now = erlang:timestamp(),
Q = History#lqueue.queue,
filter_history(Q, Now, Nick, MUCHistory);
_ ->
p1_queue:to_list(History#lqueue.queue)
end.
-spec filter_history(p1_queue:queue(lqueue_elem()), erlang:timestamp(),
binary(), muc_history()) -> [lqueue_elem()].
filter_history(Queue, Now, Nick,
#muc_history{since = Since,
seconds = Seconds,
maxstanzas = MaxStanzas,
maxchars = MaxChars}) ->
{History, _, _} =
lists:foldr(
fun({_, _, _, TimeStamp, Size} = Elem,
{Elems, NumStanzas, NumChars} = Acc) ->
NowDiff = timer:now_diff(Now, TimeStamp) div 1000000,
Chars = Size + byte_size(Nick) + 1,
if (NumStanzas < MaxStanzas) andalso
(TimeStamp > Since) andalso
(NowDiff =< Seconds) andalso
(NumChars + Chars =< MaxChars) ->
{[Elem|Elems], NumStanzas + 1, NumChars + Chars};
true ->
Acc
end
end, {[], 0, 0}, p1_queue:to_list(Queue)),
History.
-spec is_room_overcrowded(state()) -> boolean().
is_room_overcrowded(StateData) ->
MaxUsersPresence = mod_muc_opt:max_users_presence(StateData#state.server_host),
maps:size(StateData#state.users) > MaxUsersPresence.
-spec presence_broadcast_allowed(jid(), state()) -> boolean().
presence_broadcast_allowed(JID, StateData) ->
Role = get_role(JID, StateData),
lists:member(Role, (StateData#state.config)#config.presence_broadcast).
-spec send_initial_presences_and_messages(
jid(), binary(), presence(), state(), state()) -> ok.
send_initial_presences_and_messages(From, Nick, Presence, NewState, OldState) ->
advertise_entity_capabilities(From, NewState),
send_existing_presences(From, NewState),
send_self_presence(From, NewState, OldState),
History = get_history(Nick, Presence, NewState),
send_history(From, History, NewState),
send_subject(From, OldState).
-spec advertise_entity_capabilities(jid(), state()) -> ok.
advertise_entity_capabilities(JID, State) ->
AvatarHash = (State#state.config)#config.vcard_xupdate,
DiscoInfo = make_disco_info(JID, State),
Extras = iq_disco_info_extras(<<"en">>, State, true),
DiscoInfo1 = DiscoInfo#disco_info{xdata = [Extras]},
DiscoHash = mod_caps:compute_disco_hash(DiscoInfo1, sha),
Els1 = [#caps{hash = <<"sha-1">>,
node = ejabberd_config:get_uri(),
version = DiscoHash}],
Els2 = if is_binary(AvatarHash) ->
[#vcard_xupdate{hash = AvatarHash}|Els1];
true ->
Els1
end,
ejabberd_router:route(#presence{from = State#state.jid, to = JID,
id = p1_rand:get_string(),
sub_els = Els2}).
-spec send_self_presence(jid(), state(), state()) -> ok.
send_self_presence(NJID, StateData, OldStateData) ->
send_new_presence(NJID, <<"">>, true, StateData, OldStateData).
-spec send_update_presence(jid(), state(), state()) -> ok.
send_update_presence(JID, StateData, OldStateData) ->
send_update_presence(JID, <<"">>, StateData, OldStateData).
-spec send_update_presence(jid(), binary(), state(), state()) -> ok.
send_update_presence(JID, Reason, StateData, OldStateData) ->
case is_room_overcrowded(StateData) of
true -> ok;
false -> send_update_presence1(JID, Reason, StateData, OldStateData)
end.
-spec send_update_presence1(jid(), binary(), state(), state()) -> ok.
send_update_presence1(JID, Reason, StateData, OldStateData) ->
LJID = jid:tolower(JID),
LJIDs = case LJID of
{U, S, <<"">>} ->
maps:fold(fun (J, _, Js) ->
case J of
{U, S, _} -> [J | Js];
_ -> Js
end
end, [], StateData#state.users);
_ ->
case maps:is_key(LJID, StateData#state.users) of
true -> [LJID];
_ -> []
end
end,
lists:foreach(fun (J) ->
send_new_presence(J, Reason, false, StateData,
OldStateData)
end,
LJIDs).
-spec send_new_presence(jid(), state(), state()) -> ok.
send_new_presence(NJID, StateData, OldStateData) ->
send_new_presence(NJID, <<"">>, false, StateData, OldStateData).
-spec send_new_presence(jid(), binary(), state(), state()) -> ok.
send_new_presence(NJID, Reason, StateData, OldStateData) ->
send_new_presence(NJID, Reason, false, StateData, OldStateData).
-spec is_ra_changed(jid(), boolean(), state(), state()) -> boolean().
is_ra_changed(_, _IsInitialPresence = true, _, _) ->
false;
is_ra_changed(JID, _IsInitialPresence = false, NewStateData, OldStateData) ->
NewRole = get_role(JID, NewStateData),
NewAff = get_affiliation(JID, NewStateData),
OldRole = get_role(JID, OldStateData),
OldAff = get_affiliation(JID, OldStateData),
if (NewRole == none) and (NewAff == OldAff) ->
%% A user is leaving the room;
false;
true ->
(NewRole /= OldRole) or (NewAff /= OldAff)
end.
-spec send_new_presence(jid(), binary(), boolean(), state(), state()) -> ok.
send_new_presence(NJID, Reason, IsInitialPresence, StateData, OldStateData) ->
LNJID = jid:tolower(NJID),
#user{nick = Nick} = maps:get(LNJID, StateData#state.users),
LJID = find_jid_by_nick(Nick, StateData),
#user{jid = RealJID, role = Role0,
last_presence = Presence0} = UserInfo =
maps:get(jid:tolower(LJID), StateData#state.users),
{Role1, Presence1} =
case (presence_broadcast_allowed(NJID, StateData) orelse
presence_broadcast_allowed(NJID, OldStateData)) of
true -> {Role0, Presence0};
false -> {none, #presence{type = unavailable}}
end,
Affiliation = get_affiliation(LJID, StateData),
UserMap =
case is_room_overcrowded(StateData) orelse
(not (presence_broadcast_allowed(NJID, StateData) orelse
presence_broadcast_allowed(NJID, OldStateData))) of
true ->
#{LNJID => UserInfo};
false ->
get_users_and_subscribers(StateData)
end,
maps:fold(
fun(LUJID, Info, _) ->
IsSelfPresence = LNJID == LUJID,
{Role, Presence} = if IsSelfPresence -> {Role0, Presence0};
true -> {Role1, Presence1}
end,
Item0 = #muc_item{affiliation = Affiliation,
role = Role},
Item1 = case Info#user.role == moderator orelse
(StateData#state.config)#config.anonymous
== false orelse IsSelfPresence of
true -> Item0#muc_item{jid = RealJID};
false -> Item0
end,
Item = Item1#muc_item{reason = Reason},
StatusCodes = status_codes(IsInitialPresence, IsSelfPresence,
StateData),
Pres = if Presence == undefined -> #presence{};
true -> Presence
end,
Packet = xmpp:set_subtag(
Pres, #muc_user{items = [Item],
status_codes = StatusCodes}),
Node1 = case is_ra_changed(NJID, IsInitialPresence, StateData, OldStateData) of
true -> ?NS_MUCSUB_NODES_AFFILIATIONS;
false -> ?NS_MUCSUB_NODES_PRESENCE
end,
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
Info#user.jid, Packet, Node1, StateData),
Type = xmpp:get_type(Packet),
IsSubscriber = is_subscriber(Info#user.jid, StateData),
IsOccupant = Info#user.last_presence /= undefined,
if (IsSubscriber and not IsOccupant) and
(IsInitialPresence or (Type == unavailable)) ->
Node2 = ?NS_MUCSUB_NODES_PARTICIPANTS,
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
Info#user.jid, Packet, Node2, StateData);
true ->
ok
end
end, ok, UserMap).
-spec send_existing_presences(jid(), state()) -> ok.
send_existing_presences(ToJID, StateData) ->
case is_room_overcrowded(StateData) of
true -> ok;
false -> send_existing_presences1(ToJID, StateData)
end.
-spec send_existing_presences1(jid(), state()) -> ok.
send_existing_presences1(ToJID, StateData) ->
LToJID = jid:tolower(ToJID),
#user{jid = RealToJID, role = Role} = maps:get(LToJID, StateData#state.users),
maps:fold(
fun(FromNick, _Users, _) ->
LJID = find_jid_by_nick(FromNick, StateData),
#user{jid = FromJID, role = FromRole,
last_presence = Presence} =
maps:get(jid:tolower(LJID), StateData#state.users),
PresenceBroadcast =
lists:member(
FromRole, (StateData#state.config)#config.presence_broadcast),
case {RealToJID, PresenceBroadcast} of
{FromJID, _} -> ok;
{_, false} -> ok;
_ ->
FromAffiliation = get_affiliation(LJID, StateData),
Item0 = #muc_item{affiliation = FromAffiliation,
role = FromRole},
Item = case Role == moderator orelse
(StateData#state.config)#config.anonymous
== false of
true -> Item0#muc_item{jid = FromJID};
false -> Item0
end,
Packet = xmpp:set_subtag(
Presence, #muc_user{items = [Item]}),
send_wrapped(jid:replace_resource(StateData#state.jid, FromNick),
RealToJID, Packet, ?NS_MUCSUB_NODES_PRESENCE, StateData)
end
end, ok, StateData#state.nicks).
-spec set_nick(jid(), binary(), state()) -> state().
set_nick(JID, Nick, State) ->
LJID = jid:tolower(JID),
#user{nick = OldNick} = maps:get(LJID, State#state.users),
Users = maps:update_with(LJID,
fun (#user{} = User) -> User#user{nick = Nick} end,
State#state.users),
OldNickUsers = maps:get(OldNick, State#state.nicks),
NewNickUsers = maps:get(Nick, State#state.nicks, []),
Nicks = case OldNickUsers of
[LJID] ->
maps:put(Nick, [LJID | NewNickUsers -- [LJID]],
maps:remove(OldNick, State#state.nicks));
[_ | _] ->
maps:put(Nick, [LJID | NewNickUsers -- [LJID]],
maps:put(OldNick, OldNickUsers -- [LJID],
State#state.nicks))
end,
State#state{users = Users, nicks = Nicks}.
-spec change_nick(jid(), binary(), state()) -> state().
change_nick(JID, Nick, StateData) ->
LJID = jid:tolower(JID),
#user{nick = OldNick} = maps:get(LJID, StateData#state.users),
OldNickUsers = maps:get(OldNick, StateData#state.nicks),
NewNickUsers = maps:get(Nick, StateData#state.nicks, []),
SendOldUnavailable = length(OldNickUsers) == 1,
SendNewAvailable = SendOldUnavailable orelse NewNickUsers == [],
NewStateData = set_nick(JID, Nick, StateData),
case presence_broadcast_allowed(JID, NewStateData) of
true ->
send_nick_changing(JID, OldNick, NewStateData,
SendOldUnavailable, SendNewAvailable);
false -> ok
end,
add_to_log(nickchange, {OldNick, Nick}, StateData),
NewStateData.
-spec send_nick_changing(jid(), binary(), state(), boolean(), boolean()) -> ok.
send_nick_changing(JID, OldNick, StateData,
SendOldUnavailable, SendNewAvailable) ->
#user{jid = RealJID, nick = Nick, role = Role,
last_presence = Presence} =
maps:get(jid:tolower(JID), StateData#state.users),
Affiliation = get_affiliation(JID, StateData),
maps:fold(
fun(LJID, Info, _) when Presence /= undefined ->
IsSelfPresence = LJID == jid:tolower(JID),
Item0 = #muc_item{affiliation = Affiliation, role = Role},
Item = case Info#user.role == moderator orelse
(StateData#state.config)#config.anonymous
== false orelse IsSelfPresence of
true -> Item0#muc_item{jid = RealJID};
false -> Item0
end,
Status110 = case IsSelfPresence of
true -> [110];
false -> []
end,
Packet1 = #presence{
type = unavailable,
sub_els = [#muc_user{
items = [Item#muc_item{nick = Nick}],
status_codes = [303|Status110]}]},
Packet2 = xmpp:set_subtag(Presence,
#muc_user{items = [Item],
status_codes = Status110}),
if SendOldUnavailable ->
send_wrapped(
jid:replace_resource(StateData#state.jid, OldNick),
Info#user.jid, Packet1, ?NS_MUCSUB_NODES_PRESENCE,
StateData);
true -> ok
end,
if SendNewAvailable ->
send_wrapped(
jid:replace_resource(StateData#state.jid, Nick),
Info#user.jid, Packet2, ?NS_MUCSUB_NODES_PRESENCE,
StateData);
true -> ok
end;
(_, _, _) ->
ok
end, ok, get_users_and_subscribers(StateData)).
-spec maybe_send_affiliation(jid(), affiliation(), state()) -> ok.
maybe_send_affiliation(JID, Affiliation, StateData) ->
LJID = jid:tolower(JID),
Users = get_users_and_subscribers(StateData),
IsOccupant = case LJID of
{LUser, LServer, <<"">>} ->
#{} /= maps:filter(
fun({U, S, _}, _) ->
U == LUser andalso
S == LServer
end, Users);
{_LUser, _LServer, _LResource} ->
maps:is_key(LJID, Users)
end,
case IsOccupant of
true ->
ok; % The new affiliation is published via presence.
false ->
send_affiliation(JID, Affiliation, StateData)
end.
-spec send_affiliation(jid(), affiliation(), state()) -> ok.
send_affiliation(JID, Affiliation, StateData) ->
Item = #muc_item{jid = JID,
affiliation = Affiliation,
role = none},
Message = #message{id = p1_rand:get_string(),
sub_els = [#muc_user{items = [Item]}]},
Users = get_users_and_subscribers(StateData),
Recipients = case (StateData#state.config)#config.anonymous of
true ->
maps:filter(fun(_, #user{role = moderator}) ->
true;
(_, _) ->
false
end, Users);
false ->
Users
end,
send_wrapped_multiple(StateData#state.jid, Recipients, Message,
?NS_MUCSUB_NODES_AFFILIATIONS, StateData).
-spec status_codes(boolean(), boolean(), state()) -> [pos_integer()].
status_codes(IsInitialPresence, _IsSelfPresence = true, StateData) ->
S0 = [110],
case IsInitialPresence of
true ->
S1 = case StateData#state.just_created of
true -> [201|S0];
_ -> S0
end,
S2 = case (StateData#state.config)#config.anonymous of
true -> S1;
false -> [100|S1]
end,
S3 = case (StateData#state.config)#config.logging of
true -> [170|S2];
false -> S2
end,
S3;
false -> S0
end;
status_codes(_IsInitialPresence, _IsSelfPresence = false, _StateData) -> [].
-spec lqueue_new(non_neg_integer(), ram | file) -> lqueue().
lqueue_new(Max, Type) ->
#lqueue{queue = p1_queue:new(Type), max = Max}.
-spec lqueue_in(lqueue_elem(), lqueue()) -> lqueue().
%% If the message queue limit is set to 0, do not store messages.
lqueue_in(_Item, LQ = #lqueue{max = 0}) -> LQ;
%% Otherwise, rotate messages in the queue store.
lqueue_in(Item, #lqueue{queue = Q1, max = Max}) ->
Len = p1_queue:len(Q1),
Q2 = p1_queue:in(Item, Q1),
if Len >= Max ->
Q3 = lqueue_cut(Q2, Len - Max + 1),
#lqueue{queue = Q3, max = Max};
true -> #lqueue{queue = Q2, max = Max}
end.
-spec lqueue_cut(p1_queue:queue(lqueue_elem()), non_neg_integer()) -> p1_queue:queue(lqueue_elem()).
lqueue_cut(Q, 0) -> Q;
lqueue_cut(Q, N) ->
{_, Q1} = p1_queue:out(Q),
lqueue_cut(Q1, N - 1).
-spec add_message_to_history(binary(), jid(), message(), state()) -> state().
add_message_to_history(FromNick, FromJID, Packet, StateData) ->
add_to_log(text, {FromNick, Packet}, StateData),
case check_subject(Packet) of
[] ->
TimeStamp = erlang:timestamp(),
AddrPacket = case (StateData#state.config)#config.anonymous of
true -> Packet;
false ->
Addresses = #addresses{
list = [#address{type = ofrom,
jid = FromJID}]},
xmpp:set_subtag(Packet, Addresses)
end,
TSPacket = misc:add_delay_info(
AddrPacket, StateData#state.jid, TimeStamp),
SPacket = xmpp:set_from_to(
TSPacket,
jid:replace_resource(StateData#state.jid, FromNick),
StateData#state.jid),
Size = element_size(SPacket),
Q1 = lqueue_in({FromNick, TSPacket, false,
TimeStamp, Size},
StateData#state.history),
StateData#state{history = Q1};
_ ->
StateData
end.
-spec send_history(jid(), [lqueue_elem()], state()) -> ok.
send_history(JID, History, StateData) ->
lists:foreach(
fun({Nick, Packet, _HaveSubject, _TimeStamp, _Size}) ->
ejabberd_router:route(
xmpp:set_from_to(
Packet,
jid:replace_resource(StateData#state.jid, Nick),
JID))
end, History).
-spec send_subject(jid(), state()) -> ok.
send_subject(JID, #state{subject_author = Nick} = StateData) ->
Subject = case StateData#state.subject of
[] -> [#text{}];
[_|_] = S -> S
end,
Packet = #message{from = jid:replace_resource(StateData#state.jid, Nick),
to = JID, type = groupchat, subject = Subject},
ejabberd_router:route(Packet).
-spec check_subject(message()) -> [text()].
check_subject(#message{subject = [_|_] = Subj, body = [],
thread = undefined}) ->
Subj;
check_subject(_) ->
[].
-spec can_change_subject(role(), boolean(), state()) -> boolean().
can_change_subject(Role, IsSubscriber, StateData) ->
case (StateData#state.config)#config.allow_change_subj
of
true -> Role == moderator orelse Role == participant orelse IsSubscriber == true;
_ -> Role == moderator
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Admin stuff
-spec process_iq_admin(jid(), iq(), #state{}) -> {error, stanza_error()} |
{result, undefined, #state{}} |
{result, muc_admin()}.
process_iq_admin(_From, #iq{lang = Lang, sub_els = [#muc_admin{items = []}]},
_StateData) ->
Txt = ?T("No 'item' element found"),
{error, xmpp:err_bad_request(Txt, Lang)};
process_iq_admin(_From, #iq{type = get, lang = Lang,
sub_els = [#muc_admin{items = [_, _|_]}]},
_StateData) ->
ErrText = ?T("Too many <item/> elements"),
{error, xmpp:err_bad_request(ErrText, Lang)};
process_iq_admin(From, #iq{type = set, lang = Lang,
sub_els = [#muc_admin{items = Items}]},
StateData) ->
process_admin_items_set(From, Items, Lang, StateData);
process_iq_admin(From, #iq{type = get, lang = Lang,
sub_els = [#muc_admin{items = [Item]}]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
FRole = get_role(From, StateData),
case Item of
#muc_item{role = undefined, affiliation = undefined} ->
Txt = ?T("Neither 'role' nor 'affiliation' attribute found"),
{error, xmpp:err_bad_request(Txt, Lang)};
#muc_item{role = undefined, affiliation = Affiliation} ->
if (FAffiliation == owner) or
(FAffiliation == admin) or
((FAffiliation == member) and
not (StateData#state.config)#config.anonymous) ->
Items = items_with_affiliation(Affiliation, StateData),
{result, #muc_admin{items = Items}};
true ->
ErrText = ?T("Administrator privileges required"),
{error, xmpp:err_forbidden(ErrText, Lang)}
end;
#muc_item{role = Role} ->
if FRole == moderator ->
Items = items_with_role(Role, StateData),
{result, #muc_admin{items = Items}};
true ->
ErrText = ?T("Moderator privileges required"),
{error, xmpp:err_forbidden(ErrText, Lang)}
end
end.
-spec items_with_role(role(), state()) -> [muc_item()].
items_with_role(SRole, StateData) ->
lists:map(fun ({_, U}) -> user_to_item(U, StateData)
end,
search_role(SRole, StateData)).
-spec items_with_affiliation(affiliation(), state()) -> [muc_item()].
items_with_affiliation(SAffiliation, StateData) ->
lists:map(
fun({JID, {Affiliation, Reason}}) ->
#muc_item{affiliation = Affiliation, jid = jid:make(JID),
reason = Reason};
({JID, Affiliation}) ->
#muc_item{affiliation = Affiliation, jid = jid:make(JID)}
end,
search_affiliation(SAffiliation, StateData)).
-spec user_to_item(#user{}, state()) -> muc_item().
user_to_item(#user{role = Role, nick = Nick, jid = JID},
StateData) ->
Affiliation = get_affiliation(JID, StateData),
#muc_item{role = Role,
affiliation = Affiliation,
nick = Nick,
jid = JID}.
-spec search_role(role(), state()) -> [{ljid(), #user{}}].
search_role(Role, StateData) ->
lists:filter(fun ({_, #user{role = R}}) -> Role == R
end,
maps:to_list(StateData#state.users)).
-spec search_affiliation(affiliation(), state()) ->
[{ljid(),
affiliation() | {affiliation(), binary()}}].
search_affiliation(Affiliation,
#state{config = #config{persistent = false}} = StateData) ->
search_affiliation_fallback(Affiliation, StateData);
search_affiliation(Affiliation, StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
ServerHost = StateData#state.server_host,
Mod = gen_mod:db_mod(ServerHost, mod_muc),
case Mod:search_affiliation(ServerHost, Room, Host, Affiliation) of
{ok, AffiliationList} ->
AffiliationList;
{error, _} ->
search_affiliation_fallback(Affiliation, StateData)
end.
-spec search_affiliation_fallback(affiliation(), state()) ->
[{ljid(),
affiliation() | {affiliation(), binary()}}].
search_affiliation_fallback(Affiliation, StateData) ->
lists:filter(
fun({_, A}) ->
case A of
{A1, _Reason} -> Affiliation == A1;
_ -> Affiliation == A
end
end, maps:to_list(StateData#state.affiliations)).
-spec process_admin_items_set(jid(), [muc_item()], binary(),
#state{}) -> {result, undefined, #state{}} |
{error, stanza_error()}.
process_admin_items_set(UJID, Items, Lang, StateData) ->
UAffiliation = get_affiliation(UJID, StateData),
URole = get_role(UJID, StateData),
case catch find_changed_items(UJID, UAffiliation, URole,
Items, Lang, StateData, [])
of
{result, Res} ->
?INFO_MSG("Processing MUC admin query from ~ts in "
"room ~ts:~n ~p",
[jid:encode(UJID),
jid:encode(StateData#state.jid), Res]),
case lists:foldl(process_item_change(UJID),
StateData, lists:flatten(Res)) of
{error, _} = Err ->
Err;
NSD ->
store_room(NSD),
{result, undefined, NSD}
end;
{error, Err} -> {error, Err}
end.
-spec process_item_change(jid()) -> fun((admin_action(), state() | {error, stanza_error()}) ->
state() | {error, stanza_error()}).
process_item_change(UJID) ->
fun(_, {error, _} = Err) ->
Err;
(Item, SD) ->
process_item_change(Item, SD, UJID)
end.
-spec process_item_change(admin_action(), state(), undefined | jid()) -> state() | {error, stanza_error()}.
process_item_change(Item, SD, UJID) ->
try case Item of
{JID, affiliation, owner, _} when JID#jid.luser == <<"">> ->
%% If the provided JID does not have username,
%% forget the affiliation completely
SD;
{JID, role, none, Reason} ->
send_kickban_presence(UJID, JID, Reason, 307, SD),
set_role(JID, none, SD);
{JID, affiliation, none, Reason} ->
case (SD#state.config)#config.members_only of
true ->
send_kickban_presence(UJID, JID, Reason, 321, none, SD),
maybe_send_affiliation(JID, none, SD),
SD1 = set_affiliation(JID, none, SD),
set_role(JID, none, SD1);
_ ->
SD1 = set_affiliation(JID, none, SD),
SD2 = case (SD1#state.config)#config.moderated of
true -> set_role(JID, visitor, SD1);
false -> set_role(JID, participant, SD1)
end,
send_update_presence(JID, Reason, SD2, SD),
maybe_send_affiliation(JID, none, SD2),
SD2
end;
{JID, affiliation, outcast, Reason} ->
send_kickban_presence(UJID, JID, Reason, 301, outcast, SD),
maybe_send_affiliation(JID, outcast, SD),
set_affiliation(JID, outcast, set_role(JID, none, SD), Reason);
{JID, affiliation, A, Reason} when (A == admin) or (A == owner) ->
SD1 = set_affiliation(JID, A, SD, Reason),
SD2 = set_role(JID, moderator, SD1),
send_update_presence(JID, Reason, SD2, SD),
maybe_send_affiliation(JID, A, SD2),
SD2;
{JID, affiliation, member, Reason} ->
SD1 = set_affiliation(JID, member, SD, Reason),
SD2 = set_role(JID, participant, SD1),
send_update_presence(JID, Reason, SD2, SD),
maybe_send_affiliation(JID, member, SD2),
SD2;
{JID, role, Role, Reason} ->
SD1 = set_role(JID, Role, SD),
send_new_presence(JID, Reason, SD1, SD),
SD1;
{JID, affiliation, A, _Reason} ->
SD1 = set_affiliation(JID, A, SD),
send_update_presence(JID, SD1, SD),
maybe_send_affiliation(JID, A, SD1),
SD1
end
catch ?EX_RULE(E, R, St) ->
StackTrace = ?EX_STACK(St),
FromSuffix = case UJID of
#jid{} ->
JidString = jid:encode(UJID),
<<" from ", JidString/binary>>;
undefined ->
<<"">>
end,
?ERROR_MSG("Failed to set item ~p~ts:~n** ~ts",
[Item, FromSuffix,
misc:format_exception(2, E, R, StackTrace)]),
{error, xmpp:err_internal_server_error()}
end.
-spec find_changed_items(jid(), affiliation(), role(),
[muc_item()], binary(), state(), [admin_action()]) ->
{result, [admin_action()]}.
find_changed_items(_UJID, _UAffiliation, _URole, [],
_Lang, _StateData, Res) ->
{result, Res};
find_changed_items(_UJID, _UAffiliation, _URole,
[#muc_item{jid = undefined, nick = <<"">>}|_],
Lang, _StateData, _Res) ->
Txt = ?T("Neither 'jid' nor 'nick' attribute found"),
throw({error, xmpp:err_bad_request(Txt, Lang)});
find_changed_items(_UJID, _UAffiliation, _URole,
[#muc_item{role = undefined, affiliation = undefined}|_],
Lang, _StateData, _Res) ->
Txt = ?T("Neither 'role' nor 'affiliation' attribute found"),
throw({error, xmpp:err_bad_request(Txt, Lang)});
find_changed_items(UJID, UAffiliation, URole,
[#muc_item{jid = J, nick = Nick, reason = Reason,
role = Role, affiliation = Affiliation}|Items],
Lang, StateData, Res) ->
[JID | _] = JIDs =
if J /= undefined ->
[J];
Nick /= <<"">> ->
case find_jids_by_nick(Nick, StateData) of
[] ->
ErrText = {?T("Nickname ~s does not exist in the room"),
[Nick]},
throw({error, xmpp:err_not_acceptable(ErrText, Lang)});
JIDList ->
JIDList
end
end,
{RoleOrAff, RoleOrAffValue} = if Role == undefined ->
{affiliation, Affiliation};
true ->
{role, Role}
end,
TAffiliation = get_affiliation(JID, StateData),
TRole = get_role(JID, StateData),
ServiceAf = get_service_affiliation(JID, StateData),
UIsSubscriber = is_subscriber(UJID, StateData),
URole1 = case {URole, UIsSubscriber} of
{none, true} -> subscriber;
{UR, _} -> UR
end,
CanChangeRA = case can_change_ra(UAffiliation,
URole1,
TAffiliation,
TRole, RoleOrAff, RoleOrAffValue,
ServiceAf) of
nothing -> nothing;
true -> true;
check_owner ->
case search_affiliation(owner, StateData) of
[{OJID, _}] ->
jid:remove_resource(OJID)
/=
jid:tolower(jid:remove_resource(UJID));
_ -> true
end;
_ -> false
end,
case CanChangeRA of
nothing ->
find_changed_items(UJID, UAffiliation, URole,
Items, Lang, StateData,
Res);
true ->
MoreRes = case RoleOrAff of
affiliation ->
[{jid:remove_resource(Jidx),
RoleOrAff, RoleOrAffValue, Reason}
|| Jidx <- JIDs];
role ->
[{Jidx, RoleOrAff, RoleOrAffValue, Reason}
|| Jidx <- JIDs]
end,
find_changed_items(UJID, UAffiliation, URole,
Items, Lang, StateData,
MoreRes ++ Res);
false ->
Txt = ?T("Changing role/affiliation is not allowed"),
throw({error, xmpp:err_not_allowed(Txt, Lang)})
end.
-spec can_change_ra(affiliation(), role(), affiliation(), role(),
affiliation, affiliation(), affiliation()) -> boolean() | nothing | check_owner;
(affiliation(), role(), affiliation(), role(),
role, role(), affiliation()) -> boolean() | nothing | check_owner.
can_change_ra(_FAffiliation, _FRole, owner, _TRole,
affiliation, owner, owner) ->
%% A room owner tries to add as persistent owner a
%% participant that is already owner because he is MUC admin
true;
can_change_ra(_FAffiliation, _FRole, _TAffiliation,
_TRole, _RoleorAffiliation, _Value, owner) ->
%% Nobody can decrease MUC admin's role/affiliation
false;
can_change_ra(_FAffiliation, _FRole, TAffiliation,
_TRole, affiliation, Value, _ServiceAf)
when TAffiliation == Value ->
nothing;
can_change_ra(_FAffiliation, _FRole, _TAffiliation,
TRole, role, Value, _ServiceAf)
when TRole == Value ->
nothing;
can_change_ra(FAffiliation, _FRole, outcast, _TRole,
affiliation, none, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(FAffiliation, _FRole, outcast, _TRole,
affiliation, member, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(owner, _FRole, outcast, _TRole,
affiliation, admin, _ServiceAf) ->
true;
can_change_ra(owner, _FRole, outcast, _TRole,
affiliation, owner, _ServiceAf) ->
true;
can_change_ra(FAffiliation, _FRole, none, _TRole,
affiliation, outcast, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(FAffiliation, _FRole, none, _TRole,
affiliation, member, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(owner, _FRole, none, _TRole, affiliation,
admin, _ServiceAf) ->
true;
can_change_ra(owner, _FRole, none, _TRole, affiliation,
owner, _ServiceAf) ->
true;
can_change_ra(FAffiliation, _FRole, member, _TRole,
affiliation, outcast, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(FAffiliation, _FRole, member, _TRole,
affiliation, none, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(owner, _FRole, member, _TRole,
affiliation, admin, _ServiceAf) ->
true;
can_change_ra(owner, _FRole, member, _TRole,
affiliation, owner, _ServiceAf) ->
true;
can_change_ra(owner, _FRole, admin, _TRole, affiliation,
_Affiliation, _ServiceAf) ->
true;
can_change_ra(owner, _FRole, owner, _TRole, affiliation,
_Affiliation, _ServiceAf) ->
check_owner;
can_change_ra(_FAffiliation, _FRole, _TAffiliation,
_TRole, affiliation, _Value, _ServiceAf) ->
false;
can_change_ra(_FAffiliation, moderator, _TAffiliation,
visitor, role, none, _ServiceAf) ->
true;
can_change_ra(FAffiliation, subscriber, _TAffiliation,
visitor, role, none, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(_FAffiliation, moderator, _TAffiliation,
visitor, role, participant, _ServiceAf) ->
true;
can_change_ra(FAffiliation, subscriber, _TAffiliation,
visitor, role, participant, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(FAffiliation, _FRole, _TAffiliation,
visitor, role, moderator, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(_FAffiliation, moderator, _TAffiliation,
participant, role, none, _ServiceAf) ->
true;
can_change_ra(FAffiliation, subscriber, _TAffiliation,
participant, role, none, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(_FAffiliation, moderator, _TAffiliation,
participant, role, visitor, _ServiceAf) ->
true;
can_change_ra(FAffiliation, subscriber, _TAffiliation,
participant, role, visitor, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(FAffiliation, _FRole, _TAffiliation,
participant, role, moderator, _ServiceAf)
when (FAffiliation == owner) or
(FAffiliation == admin) ->
true;
can_change_ra(_FAffiliation, _FRole, owner, moderator,
role, visitor, _ServiceAf) ->
false;
can_change_ra(owner, _FRole, _TAffiliation, moderator,
role, visitor, _ServiceAf) ->
true;
can_change_ra(_FAffiliation, _FRole, admin, moderator,
role, visitor, _ServiceAf) ->
false;
can_change_ra(admin, _FRole, _TAffiliation, moderator,
role, visitor, _ServiceAf) ->
true;
can_change_ra(_FAffiliation, _FRole, owner, moderator,
role, participant, _ServiceAf) ->
false;
can_change_ra(owner, _FRole, _TAffiliation, moderator,
role, participant, _ServiceAf) ->
true;
can_change_ra(_FAffiliation, _FRole, admin, moderator,
role, participant, _ServiceAf) ->
false;
can_change_ra(admin, _FRole, _TAffiliation, moderator,
role, participant, _ServiceAf) ->
true;
can_change_ra(owner, moderator, TAffiliation,
moderator, role, none, _ServiceAf)
when TAffiliation /= owner ->
true;
can_change_ra(owner, subscriber, TAffiliation,
moderator, role, none, _ServiceAf)
when TAffiliation /= owner ->
true;
can_change_ra(admin, moderator, TAffiliation,
moderator, role, none, _ServiceAf)
when (TAffiliation /= owner) and
(TAffiliation /= admin) ->
true;
can_change_ra(admin, subscriber, TAffiliation,
moderator, role, none, _ServiceAf)
when (TAffiliation /= owner) and
(TAffiliation /= admin) ->
true;
can_change_ra(_FAffiliation, _FRole, _TAffiliation,
_TRole, role, _Value, _ServiceAf) ->
false.
-spec send_kickban_presence(undefined | jid(), jid(), binary(),
pos_integer(), state()) -> ok.
send_kickban_presence(UJID, JID, Reason, Code, StateData) ->
NewAffiliation = get_affiliation(JID, StateData),
send_kickban_presence(UJID, JID, Reason, Code, NewAffiliation,
StateData).
-spec send_kickban_presence(undefined | jid(), jid(), binary(), pos_integer(),
affiliation(), state()) -> ok.
send_kickban_presence(UJID, JID, Reason, Code, NewAffiliation,
StateData) ->
LJID = jid:tolower(JID),
LJIDs = case LJID of
{U, S, <<"">>} ->
maps:fold(fun (J, _, Js) ->
case J of
{U, S, _} -> [J | Js];
_ -> Js
end
end, [], StateData#state.users);
_ ->
case maps:is_key(LJID, StateData#state.users) of
true -> [LJID];
_ -> []
end
end,
lists:foreach(fun (LJ) ->
#user{nick = Nick, jid = J} = maps:get(LJ, StateData#state.users),
add_to_log(kickban, {Nick, Reason, Code}, StateData),
tab_remove_online_user(J, StateData),
send_kickban_presence1(UJID, J, Reason, Code,
NewAffiliation, StateData)
end,
LJIDs).
-spec send_kickban_presence1(undefined | jid(), jid(), binary(), pos_integer(),
affiliation(), state()) -> ok.
send_kickban_presence1(MJID, UJID, Reason, Code, Affiliation,
StateData) ->
#user{jid = RealJID, nick = Nick} = maps:get(jid:tolower(UJID), StateData#state.users),
ActorNick = get_actor_nick(MJID, StateData),
maps:fold(
fun(LJID, Info, _) ->
IsSelfPresence = jid:tolower(UJID) == LJID,
Item0 = #muc_item{affiliation = Affiliation,
role = none},
Item1 = case Info#user.role == moderator orelse
(StateData#state.config)#config.anonymous
== false orelse IsSelfPresence of
true -> Item0#muc_item{jid = RealJID};
false -> Item0
end,
Item2 = Item1#muc_item{reason = Reason},
Item = case ActorNick of
<<"">> -> Item2;
_ -> Item2#muc_item{actor = #muc_actor{nick = ActorNick}}
end,
Codes = if IsSelfPresence -> [110, Code];
true -> [Code]
end,
Packet = #presence{type = unavailable,
sub_els = [#muc_user{items = [Item],
status_codes = Codes}]},
RoomJIDNick = jid:replace_resource(StateData#state.jid, Nick),
send_wrapped(RoomJIDNick, Info#user.jid, Packet,
?NS_MUCSUB_NODES_AFFILIATIONS, StateData),
IsSubscriber = is_subscriber(Info#user.jid, StateData),
IsOccupant = Info#user.last_presence /= undefined,
if (IsSubscriber and not IsOccupant) ->
send_wrapped(RoomJIDNick, Info#user.jid, Packet,
?NS_MUCSUB_NODES_PARTICIPANTS, StateData);
true ->
ok
end
end, ok, get_users_and_subscribers(StateData)).
-spec get_actor_nick(undefined | jid(), state()) -> binary().
get_actor_nick(undefined, _StateData) ->
<<"">>;
get_actor_nick(MJID, StateData) ->
try maps:get(jid:tolower(MJID), StateData#state.users) of
#user{nick = ActorNick} -> ActorNick
catch _:{badkey, _} -> <<"">>
end.
-spec convert_legacy_fields([xdata_field()]) -> [xdata_field()].
convert_legacy_fields(Fs) ->
lists:map(
fun(#xdata_field{var = Var} = F) ->
NewVar = case Var of
<<"muc#roomconfig_allowvisitorstatus">> ->
<<"allow_visitor_status">>;
<<"muc#roomconfig_allowvisitornickchange">> ->
<<"allow_visitor_nickchange">>;
<<"muc#roomconfig_allowvoicerequests">> ->
<<"allow_voice_requests">>;
<<"muc#roomconfig_allow_subscription">> ->
<<"allow_subscription">>;
<<"muc#roomconfig_voicerequestmininterval">> ->
<<"voice_request_min_interval">>;
<<"muc#roomconfig_captcha_whitelist">> ->
<<"captcha_whitelist">>;
<<"muc#roomconfig_mam">> ->
<<"mam">>;
_ ->
Var
end,
F#xdata_field{var = NewVar}
end, Fs).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Owner stuff
-spec process_iq_owner(jid(), iq(), state()) ->
{result, undefined | muc_owner()} |
{result, undefined | muc_owner(), state() | stop} |
{error, stanza_error()}.
process_iq_owner(From, #iq{type = set, lang = Lang,
sub_els = [#muc_owner{destroy = Destroy,
config = Config,
items = Items}]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
if FAffiliation /= owner ->
ErrText = ?T("Owner privileges required"),
{error, xmpp:err_forbidden(ErrText, Lang)};
Destroy /= undefined, Config == undefined, Items == [] ->
?INFO_MSG("Destroyed MUC room ~ts by the owner ~ts",
[jid:encode(StateData#state.jid), jid:encode(From)]),
add_to_log(room_existence, destroyed, StateData),
destroy_room(Destroy, StateData);
Config /= undefined, Destroy == undefined, Items == [] ->
case Config of
#xdata{type = cancel} ->
{result, undefined};
#xdata{type = submit, fields = Fs} ->
Fs1 = convert_legacy_fields(Fs),
try muc_roomconfig:decode(Fs1) of
Options ->
case is_allowed_log_change(Options, StateData, From) andalso
is_allowed_persistent_change(Options, StateData, From) andalso
is_allowed_mam_change(Options, StateData, From) andalso
is_allowed_room_name_desc_limits(Options, StateData) andalso
is_password_settings_correct(Options, StateData) of
true ->
set_config(Options, StateData, Lang);
false ->
{error, xmpp:err_not_acceptable()}
end
catch _:{muc_roomconfig, Why} ->
Txt = muc_roomconfig:format_error(Why),
{error, xmpp:err_bad_request(Txt, Lang)}
end;
_ ->
Txt = ?T("Incorrect data form"),
{error, xmpp:err_bad_request(Txt, Lang)}
end;
Items /= [], Config == undefined, Destroy == undefined ->
process_admin_items_set(From, Items, Lang, StateData);
true ->
{error, xmpp:err_bad_request()}
end;
process_iq_owner(From, #iq{type = get, lang = Lang,
sub_els = [#muc_owner{destroy = Destroy,
config = Config,
items = Items}]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
if FAffiliation /= owner ->
ErrText = ?T("Owner privileges required"),
{error, xmpp:err_forbidden(ErrText, Lang)};
Destroy == undefined, Config == undefined ->
case Items of
[] ->
{result,
#muc_owner{config = get_config(Lang, StateData, From)}};
[#muc_item{affiliation = undefined}] ->
Txt = ?T("No 'affiliation' attribute found"),
{error, xmpp:err_bad_request(Txt, Lang)};
[#muc_item{affiliation = Affiliation}] ->
Items = items_with_affiliation(Affiliation, StateData),
{result, #muc_owner{items = Items}};
[_|_] ->
Txt = ?T("Too many <item/> elements"),
{error, xmpp:err_bad_request(Txt, Lang)}
end;
true ->
{error, xmpp:err_bad_request()}
end.
-spec is_allowed_log_change(muc_roomconfig:result(), state(), jid()) -> boolean().
is_allowed_log_change(Options, StateData, From) ->
case proplists:is_defined(enablelogging, Options) of
false -> true;
true ->
allow ==
mod_muc_log:check_access_log(StateData#state.server_host,
From)
end.
-spec is_allowed_persistent_change(muc_roomconfig:result(), state(), jid()) -> boolean().
is_allowed_persistent_change(Options, StateData, From) ->
case proplists:is_defined(persistentroom, Options) of
false -> true;
true ->
{_AccessRoute, _AccessCreate, _AccessAdmin,
AccessPersistent, _AccessMam} =
StateData#state.access,
allow ==
acl:match_rule(StateData#state.server_host,
AccessPersistent, From)
end.
-spec is_allowed_mam_change(muc_roomconfig:result(), state(), jid()) -> boolean().
is_allowed_mam_change(Options, StateData, From) ->
case proplists:is_defined(mam, Options) of
false -> true;
true ->
{_AccessRoute, _AccessCreate, _AccessAdmin,
_AccessPersistent, AccessMam} =
StateData#state.access,
allow ==
acl:match_rule(StateData#state.server_host,
AccessMam, From)
end.
%% Check if the Room Name and Room Description defined in the Data Form
%% are conformant to the configured limits
-spec is_allowed_room_name_desc_limits(muc_roomconfig:result(), state()) -> boolean().
is_allowed_room_name_desc_limits(Options, StateData) ->
RoomName = proplists:get_value(roomname, Options, <<"">>),
RoomDesc = proplists:get_value(roomdesc, Options, <<"">>),
MaxRoomName = mod_muc_opt:max_room_name(StateData#state.server_host),
MaxRoomDesc = mod_muc_opt:max_room_desc(StateData#state.server_host),
(byte_size(RoomName) =< MaxRoomName)
andalso (byte_size(RoomDesc) =< MaxRoomDesc).
%% Return false if:
%% "the password for a password-protected room is blank"
-spec is_password_settings_correct(muc_roomconfig:result(), state()) -> boolean().
is_password_settings_correct(Options, StateData) ->
Config = StateData#state.config,
OldProtected = Config#config.password_protected,
OldPassword = Config#config.password,
NewProtected = proplists:get_value(passwordprotectedroom, Options),
NewPassword = proplists:get_value(roomsecret, Options),
case {OldProtected, NewProtected, OldPassword, NewPassword} of
{true, undefined, <<"">>, undefined} -> false;
{true, undefined, _, <<"">>} -> false;
{_, true, <<"">>, undefined} -> false;
{_, true, _, <<"">>} -> false;
_ -> true
end.
-spec get_default_room_maxusers(state()) -> non_neg_integer().
get_default_room_maxusers(RoomState) ->
DefRoomOpts =
mod_muc_opt:default_room_options(RoomState#state.server_host),
RoomState2 = set_opts(DefRoomOpts, RoomState),
(RoomState2#state.config)#config.max_users.
-spec get_config(binary(), state(), jid()) -> xdata().
get_config(Lang, StateData, From) ->
{_AccessRoute, _AccessCreate, _AccessAdmin, AccessPersistent, _AccessMam} =
StateData#state.access,
ServiceMaxUsers = get_service_max_users(StateData),
DefaultRoomMaxUsers = get_default_room_maxusers(StateData),
Config = StateData#state.config,
MaxUsersRoom = get_max_users(StateData),
Title = str:format(
translate:translate(Lang, ?T("Configuration of room ~s")),
[jid:encode(StateData#state.jid)]),
Fs = [{roomname, Config#config.title},
{roomdesc, Config#config.description},
{lang, Config#config.lang}] ++
case acl:match_rule(StateData#state.server_host, AccessPersistent, From) of
allow -> [{persistentroom, Config#config.persistent}];
deny -> []
end ++
[{publicroom, Config#config.public},
{public_list, Config#config.public_list},
{passwordprotectedroom, Config#config.password_protected},
{roomsecret, case Config#config.password_protected of
true -> Config#config.password;
false -> <<"">>
end},
{maxusers, MaxUsersRoom,
[if is_integer(ServiceMaxUsers) -> [];
true -> [{?T("No limit"), <<"none">>}]
end] ++ [{integer_to_binary(N), N}
|| N <- lists:usort([ServiceMaxUsers,
DefaultRoomMaxUsers,
MaxUsersRoom
| ?MAX_USERS_DEFAULT_LIST]),
N =< ServiceMaxUsers]},
{whois, if Config#config.anonymous -> moderators;
true -> anyone
end},
{presencebroadcast, Config#config.presence_broadcast},
{membersonly, Config#config.members_only},
{moderatedroom, Config#config.moderated},
{members_by_default, Config#config.members_by_default},
{changesubject, Config#config.allow_change_subj},
{allow_private_messages, Config#config.allow_private_messages},
{allow_private_messages_from_visitors,
Config#config.allow_private_messages_from_visitors},
{allow_query_users, Config#config.allow_query_users},
{allowinvites, Config#config.allow_user_invites},
{allow_visitor_status, Config#config.allow_visitor_status},
{allow_visitor_nickchange, Config#config.allow_visitor_nickchange},
{allow_voice_requests, Config#config.allow_voice_requests},
{allow_subscription, Config#config.allow_subscription},
{voice_request_min_interval, Config#config.voice_request_min_interval},
{pubsub, Config#config.pubsub}]
++
case ejabberd_captcha:is_feature_available() of
true ->
[{captcha_protected, Config#config.captcha_protected},
{captcha_whitelist,
lists:map(
fun jid:make/1,
?SETS:to_list(Config#config.captcha_whitelist))}];
false ->
[]
end
++
case mod_muc_log:check_access_log(StateData#state.server_host, From) of
allow -> [{enablelogging, Config#config.logging}];
deny -> []
end,
Fields = ejabberd_hooks:run_fold(get_room_config,
StateData#state.server_host,
Fs,
[StateData, From, Lang]),
#xdata{type = form, title = Title,
fields = muc_roomconfig:encode(Fields, Lang)}.
-spec set_config(muc_roomconfig:result(), state(), binary()) ->
{error, stanza_error()} | {result, undefined, state()}.
set_config(Options, StateData, Lang) ->
try
#config{} = Config = set_config(Options, StateData#state.config,
StateData#state.server_host, Lang),
{result, _, NSD} = Res = change_config(Config, StateData),
Type = case {(StateData#state.config)#config.logging,
Config#config.logging}
of
{true, false} -> roomconfig_change_disabledlogging;
{false, true} -> roomconfig_change_enabledlogging;
{_, _} -> roomconfig_change
end,
Users = [{U#user.jid, U#user.nick, U#user.role}
|| U <- maps:values(StateData#state.users)],
add_to_log(Type, Users, NSD),
Res
catch _:{badmatch, {error, #stanza_error{}} = Err} ->
Err
end.
-spec get_config_opt_name(pos_integer()) -> atom().
get_config_opt_name(Pos) ->
Fs = [config|record_info(fields, config)],
lists:nth(Pos, Fs).
-spec set_config([muc_roomconfig:property()], #config{},
binary(), binary()) -> #config{} | {error, stanza_error()}.
set_config(Opts, Config, ServerHost, Lang) ->
lists:foldl(
fun(_, {error, _} = Err) -> Err;
({roomname, Title}, C) -> C#config{title = Title};
({roomdesc, Desc}, C) -> C#config{description = Desc};
({changesubject, V}, C) -> C#config{allow_change_subj = V};
({allow_query_users, V}, C) -> C#config{allow_query_users = V};
({allow_private_messages, V}, C) ->
C#config{allow_private_messages = V};
({allow_private_messages_from_visitors, V}, C) ->
C#config{allow_private_messages_from_visitors = V};
({allow_visitor_status, V}, C) -> C#config{allow_visitor_status = V};
({allow_visitor_nickchange, V}, C) ->
C#config{allow_visitor_nickchange = V};
({publicroom, V}, C) -> C#config{public = V};
({public_list, V}, C) -> C#config{public_list = V};
({persistentroom, V}, C) -> C#config{persistent = V};
({moderatedroom, V}, C) -> C#config{moderated = V};
({members_by_default, V}, C) -> C#config{members_by_default = V};
({membersonly, V}, C) -> C#config{members_only = V};
({captcha_protected, V}, C) -> C#config{captcha_protected = V};
({allowinvites, V}, C) -> C#config{allow_user_invites = V};
({allow_subscription, V}, C) -> C#config{allow_subscription = V};
({passwordprotectedroom, V}, C) -> C#config{password_protected = V};
({roomsecret, V}, C) -> C#config{password = V};
({anonymous, V}, C) -> C#config{anonymous = V};
({presencebroadcast, V}, C) -> C#config{presence_broadcast = V};
({allow_voice_requests, V}, C) -> C#config{allow_voice_requests = V};
({voice_request_min_interval, V}, C) ->
C#config{voice_request_min_interval = V};
({whois, moderators}, C) -> C#config{anonymous = true};
({whois, anyone}, C) -> C#config{anonymous = false};
({maxusers, V}, C) -> C#config{max_users = V};
({enablelogging, V}, C) -> C#config{logging = V};
({pubsub, V}, C) -> C#config{pubsub = V};
({lang, L}, C) -> C#config{lang = L};
({captcha_whitelist, Js}, C) ->
LJIDs = [jid:tolower(J) || J <- Js],
C#config{captcha_whitelist = ?SETS:from_list(LJIDs)};
({O, V} = Opt, C) ->
case ejabberd_hooks:run_fold(set_room_option,
ServerHost,
{0, undefined},
[Opt, Lang]) of
{0, undefined} ->
?ERROR_MSG("set_room_option hook failed for "
"option '~ts' with value ~p", [O, V]),
Txt = {?T("Failed to process option '~s'"), [O]},
{error, xmpp:err_internal_server_error(Txt, Lang)};
{Pos, Val} ->
setelement(Pos, C, Val)
end
end, Config, Opts).
-spec change_config(#config{}, state()) -> {result, undefined, state()}.
change_config(Config, StateData) ->
send_config_change_info(Config, StateData),
StateData0 = StateData#state{config = Config},
StateData1 = remove_subscriptions(StateData0),
StateData2 =
case {(StateData#state.config)#config.persistent,
Config#config.persistent} of
{WasPersistent, true} ->
if not WasPersistent ->
set_affiliations(StateData1#state.affiliations,
StateData1);
true ->
ok
end,
store_room(StateData1),
StateData1;
{true, false} ->
Affiliations = get_affiliations(StateData),
maybe_forget_room(StateData),
StateData1#state{affiliations = Affiliations};
_ ->
StateData1
end,
case {(StateData#state.config)#config.members_only,
Config#config.members_only} of
{false, true} ->
StateData3 = remove_nonmembers(StateData2),
{result, undefined, StateData3};
_ ->
{result, undefined, StateData2}
end.
-spec send_config_change_info(#config{}, state()) -> ok.
send_config_change_info(Config, #state{config = Config}) -> ok;
send_config_change_info(New, #state{config = Old} = StateData) ->
Codes = case {Old#config.logging, New#config.logging} of
{false, true} -> [170];
{true, false} -> [171];
_ -> []
end
++
case {Old#config.anonymous, New#config.anonymous} of
{true, false} -> [172];
{false, true} -> [173];
_ -> []
end
++
case Old#config{anonymous = New#config.anonymous,
logging = New#config.logging} of
New -> [];
_ -> [104]
end,
if Codes /= [] ->
maps:fold(
fun(_LJID, #user{jid = JID}, _) ->
advertise_entity_capabilities(JID, StateData#state{config = New})
end, ok, StateData#state.users),
Message = #message{type = groupchat,
id = p1_rand:get_string(),
sub_els = [#muc_user{status_codes = Codes}]},
send_wrapped_multiple(StateData#state.jid,
get_users_and_subscribers(StateData),
Message,
?NS_MUCSUB_NODES_CONFIG,
StateData);
true ->
ok
end.
-spec remove_nonmembers(state()) -> state().
remove_nonmembers(StateData) ->
maps:fold(
fun(_LJID, #user{jid = JID}, SD) ->
Affiliation = get_affiliation(JID, SD),
case Affiliation of
none ->
catch send_kickban_presence(undefined, JID, <<"">>, 322, SD),
set_role(JID, none, SD);
_ -> SD
end
end, StateData, get_users_and_subscribers(StateData)).
-spec set_opts([{atom(), any()}], state()) -> state().
set_opts([], StateData) ->
set_vcard_xupdate(StateData);
set_opts([{Opt, Val} | Opts], StateData) ->
NSD = case Opt of
title ->
StateData#state{config =
(StateData#state.config)#config{title =
Val}};
description ->
StateData#state{config =
(StateData#state.config)#config{description
= Val}};
allow_change_subj ->
StateData#state{config =
(StateData#state.config)#config{allow_change_subj
= Val}};
allow_query_users ->
StateData#state{config =
(StateData#state.config)#config{allow_query_users
= Val}};
allow_private_messages ->
StateData#state{config =
(StateData#state.config)#config{allow_private_messages
= Val}};
allow_private_messages_from_visitors ->
StateData#state{config =
(StateData#state.config)#config{allow_private_messages_from_visitors
= Val}};
allow_visitor_nickchange ->
StateData#state{config =
(StateData#state.config)#config{allow_visitor_nickchange
= Val}};
allow_visitor_status ->
StateData#state{config =
(StateData#state.config)#config{allow_visitor_status
= Val}};
public ->
StateData#state{config =
(StateData#state.config)#config{public =
Val}};
public_list ->
StateData#state{config =
(StateData#state.config)#config{public_list
= Val}};
persistent ->
StateData#state{config =
(StateData#state.config)#config{persistent =
Val}};
moderated ->
StateData#state{config =
(StateData#state.config)#config{moderated =
Val}};
members_by_default ->
StateData#state{config =
(StateData#state.config)#config{members_by_default
= Val}};
members_only ->
StateData#state{config =
(StateData#state.config)#config{members_only
= Val}};
allow_user_invites ->
StateData#state{config =
(StateData#state.config)#config{allow_user_invites
= Val}};
password_protected ->
StateData#state{config =
(StateData#state.config)#config{password_protected
= Val}};
captcha_protected ->
StateData#state{config =
(StateData#state.config)#config{captcha_protected
= Val}};
password ->
StateData#state{config =
(StateData#state.config)#config{password =
Val}};
anonymous ->
StateData#state{config =
(StateData#state.config)#config{anonymous =
Val}};
presence_broadcast ->
StateData#state{config =
(StateData#state.config)#config{presence_broadcast =
Val}};
logging ->
StateData#state{config =
(StateData#state.config)#config{logging =
Val}};
mam ->
StateData#state{config =
(StateData#state.config)#config{mam = Val}};
captcha_whitelist ->
StateData#state{config =
(StateData#state.config)#config{captcha_whitelist
=
(?SETS):from_list(Val)}};
allow_voice_requests ->
StateData#state{config =
(StateData#state.config)#config{allow_voice_requests
= Val}};
voice_request_min_interval ->
StateData#state{config =
(StateData#state.config)#config{voice_request_min_interval
= Val}};
max_users ->
ServiceMaxUsers = get_service_max_users(StateData),
MaxUsers = if Val =< ServiceMaxUsers -> Val;
true -> ServiceMaxUsers
end,
StateData#state{config =
(StateData#state.config)#config{max_users =
MaxUsers}};
vcard ->
StateData#state{config =
(StateData#state.config)#config{vcard =
Val}};
vcard_xupdate ->
StateData#state{config =
(StateData#state.config)#config{vcard_xupdate =
Val}};
pubsub ->
StateData#state{config =
(StateData#state.config)#config{pubsub = Val}};
allow_subscription ->
StateData#state{config =
(StateData#state.config)#config{allow_subscription = Val}};
lang ->
StateData#state{config =
(StateData#state.config)#config{lang = Val}};
subscribers ->
{Subscribers, Nicks} =
lists:foldl(
fun({JID, Nick, Nodes}, {SubAcc, NickAcc}) ->
BareJID = case JID of
#jid{} -> jid:remove_resource(JID);
_ ->
?ERROR_MSG("Invalid subscriber JID in set_opts ~p", [JID]),
jid:remove_resource(jid:make(JID))
end,
LBareJID = jid:tolower(BareJID),
{maps:put(
LBareJID,
#subscriber{jid = BareJID,
nick = Nick,
nodes = Nodes},
SubAcc),
maps:put(Nick, [LBareJID], NickAcc)}
end, {#{}, #{}}, Val),
StateData#state{subscribers = Subscribers,
subscriber_nicks = Nicks};
affiliations ->
StateData#state{affiliations = maps:from_list(Val)};
subject ->
Subj = if Val == <<"">> -> [];
is_binary(Val) -> [#text{data = Val}];
is_list(Val) -> Val
end,
StateData#state{subject = Subj};
subject_author -> StateData#state{subject_author = Val};
_ -> StateData
end,
set_opts(Opts, NSD).
-spec set_vcard_xupdate(state()) -> state().
set_vcard_xupdate(#state{config =
#config{vcard = VCardRaw,
vcard_xupdate = undefined} = Config} = State)
when VCardRaw /= <<"">> ->
case fxml_stream:parse_element(VCardRaw) of
{error, _} ->
State;
El ->
Hash = mod_vcard_xupdate:compute_hash(El),
State#state{config = Config#config{vcard_xupdate = Hash}}
end;
set_vcard_xupdate(State) ->
State.
-define(MAKE_CONFIG_OPT(Opt),
{get_config_opt_name(Opt), element(Opt, Config)}).
-spec make_opts(state()) -> [{atom(), any()}].
make_opts(StateData) ->
Config = StateData#state.config,
Subscribers = maps:fold(
fun(_LJID, Sub, Acc) ->
[{Sub#subscriber.jid,
Sub#subscriber.nick,
Sub#subscriber.nodes}|Acc]
end, [], StateData#state.subscribers),
[?MAKE_CONFIG_OPT(#config.title), ?MAKE_CONFIG_OPT(#config.description),
?MAKE_CONFIG_OPT(#config.allow_change_subj),
?MAKE_CONFIG_OPT(#config.allow_query_users),
?MAKE_CONFIG_OPT(#config.allow_private_messages),
?MAKE_CONFIG_OPT(#config.allow_private_messages_from_visitors),
?MAKE_CONFIG_OPT(#config.allow_visitor_status),
?MAKE_CONFIG_OPT(#config.allow_visitor_nickchange),
?MAKE_CONFIG_OPT(#config.public), ?MAKE_CONFIG_OPT(#config.public_list),
?MAKE_CONFIG_OPT(#config.persistent),
?MAKE_CONFIG_OPT(#config.moderated),
?MAKE_CONFIG_OPT(#config.members_by_default),
?MAKE_CONFIG_OPT(#config.members_only),
?MAKE_CONFIG_OPT(#config.allow_user_invites),
?MAKE_CONFIG_OPT(#config.password_protected),
?MAKE_CONFIG_OPT(#config.captcha_protected),
?MAKE_CONFIG_OPT(#config.password), ?MAKE_CONFIG_OPT(#config.anonymous),
?MAKE_CONFIG_OPT(#config.logging), ?MAKE_CONFIG_OPT(#config.max_users),
?MAKE_CONFIG_OPT(#config.allow_voice_requests),
?MAKE_CONFIG_OPT(#config.allow_subscription),
?MAKE_CONFIG_OPT(#config.mam),
?MAKE_CONFIG_OPT(#config.presence_broadcast),
?MAKE_CONFIG_OPT(#config.voice_request_min_interval),
?MAKE_CONFIG_OPT(#config.vcard),
?MAKE_CONFIG_OPT(#config.vcard_xupdate),
?MAKE_CONFIG_OPT(#config.pubsub),
?MAKE_CONFIG_OPT(#config.lang),
{captcha_whitelist,
(?SETS):to_list((StateData#state.config)#config.captcha_whitelist)},
{affiliations,
maps:to_list(StateData#state.affiliations)},
{subject, StateData#state.subject},
{subject_author, StateData#state.subject_author},
{subscribers, Subscribers}].
expand_opts(CompactOpts) ->
DefConfig = #config{},
Fields = record_info(fields, config),
{_, Opts1} =
lists:foldl(
fun(Field, {Pos, Opts}) ->
case lists:keyfind(Field, 1, CompactOpts) of
false ->
DefV = element(Pos, DefConfig),
DefVal = case (?SETS):is_set(DefV) of
true -> (?SETS):to_list(DefV);
false -> DefV
end,
{Pos+1, [{Field, DefVal}|Opts]};
{_, Val} ->
{Pos+1, [{Field, Val}|Opts]}
end
end, {2, []}, Fields),
SubjectAuthor = proplists:get_value(subject_author, CompactOpts, <<"">>),
Subject = proplists:get_value(subject, CompactOpts, <<"">>),
Subscribers = proplists:get_value(subscribers, CompactOpts, []),
[{subject, Subject},
{subject_author, SubjectAuthor},
{subscribers, Subscribers}
| lists:reverse(Opts1)].
config_fields() ->
[subject, subject_author, subscribers | record_info(fields, config)].
-spec destroy_room(muc_destroy(), state()) -> {result, undefined, stop}.
destroy_room(DEl, StateData) ->
Destroy = DEl#muc_destroy{xmlns = ?NS_MUC_USER},
maps:fold(
fun(_LJID, Info, _) ->
Nick = Info#user.nick,
Item = #muc_item{affiliation = none,
role = none},
Packet = #presence{
type = unavailable,
sub_els = [#muc_user{items = [Item],
destroy = Destroy}]},
send_wrapped(jid:replace_resource(StateData#state.jid, Nick),
Info#user.jid, Packet,
?NS_MUCSUB_NODES_CONFIG, StateData)
end, ok, get_users_and_subscribers(StateData)),
forget_room(StateData),
{result, undefined, stop}.
-spec forget_room(state()) -> state().
forget_room(StateData) ->
mod_muc:forget_room(StateData#state.server_host,
StateData#state.host,
StateData#state.room),
StateData.
-spec maybe_forget_room(state()) -> state().
maybe_forget_room(StateData) ->
Forget = case (StateData#state.config)#config.persistent of
true ->
true;
_ ->
Mod = gen_mod:db_mod(StateData#state.server_host, mod_muc),
erlang:function_exported(Mod, get_subscribed_rooms, 3)
end,
case Forget of
true ->
forget_room(StateData);
_ ->
StateData
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Disco
-define(CONFIG_OPT_TO_FEATURE(Opt, Fiftrue, Fiffalse),
case Opt of
true -> Fiftrue;
false -> Fiffalse
end).
-spec make_disco_info(jid(), state()) -> disco_info().
make_disco_info(_From, StateData) ->
Config = StateData#state.config,
Feats = [?NS_VCARD, ?NS_MUC, ?NS_DISCO_INFO, ?NS_DISCO_ITEMS,
?CONFIG_OPT_TO_FEATURE((Config#config.public),
<<"muc_public">>, <<"muc_hidden">>),
?CONFIG_OPT_TO_FEATURE((Config#config.persistent),
<<"muc_persistent">>, <<"muc_temporary">>),
?CONFIG_OPT_TO_FEATURE((Config#config.members_only),
<<"muc_membersonly">>, <<"muc_open">>),
?CONFIG_OPT_TO_FEATURE((Config#config.anonymous),
<<"muc_semianonymous">>, <<"muc_nonanonymous">>),
?CONFIG_OPT_TO_FEATURE((Config#config.moderated),
<<"muc_moderated">>, <<"muc_unmoderated">>),
?CONFIG_OPT_TO_FEATURE((Config#config.password_protected),
<<"muc_passwordprotected">>, <<"muc_unsecured">>)]
++ case Config#config.allow_subscription of
true -> [?NS_MUCSUB];
false -> []
end
++ case {gen_mod:is_loaded(StateData#state.server_host, mod_mam),
Config#config.mam} of
{true, true} ->
[?NS_MAM_TMP, ?NS_MAM_0, ?NS_MAM_1, ?NS_MAM_2, ?NS_SID_0];
_ ->
[]
end,
#disco_info{identities = [#identity{category = <<"conference">>,
type = <<"text">>,
name = get_title(StateData)}],
features = Feats}.
-spec process_iq_disco_info(jid(), iq(), state()) ->
{result, disco_info()} | {error, stanza_error()}.
process_iq_disco_info(_From, #iq{type = set, lang = Lang}, _StateData) ->
Txt = ?T("Value 'set' of 'type' attribute is not allowed"),
{error, xmpp:err_not_allowed(Txt, Lang)};
process_iq_disco_info(From, #iq{type = get, lang = Lang,
sub_els = [#disco_info{node = <<>>}]},
StateData) ->
DiscoInfo = make_disco_info(From, StateData),
Extras = iq_disco_info_extras(Lang, StateData, false),
{result, DiscoInfo#disco_info{xdata = [Extras]}};
process_iq_disco_info(From, #iq{type = get, lang = Lang,
sub_els = [#disco_info{node = Node}]},
StateData) ->
try
true = mod_caps:is_valid_node(Node),
DiscoInfo = make_disco_info(From, StateData),
Extras = iq_disco_info_extras(Lang, StateData, true),
DiscoInfo1 = DiscoInfo#disco_info{xdata = [Extras]},
Hash = mod_caps:compute_disco_hash(DiscoInfo1, sha),
Node = <<(ejabberd_config:get_uri())/binary, $#, Hash/binary>>,
{result, DiscoInfo1#disco_info{node = Node}}
catch _:{badmatch, _} ->
Txt = ?T("Invalid node name"),
{error, xmpp:err_item_not_found(Txt, Lang)}
end.
-spec iq_disco_info_extras(binary(), state(), boolean()) -> xdata().
iq_disco_info_extras(Lang, StateData, Static) ->
Config = StateData#state.config,
AllowPM = case Config#config.allow_private_messages of
false -> none;
true ->
case Config#config.allow_private_messages_from_visitors of
nobody -> participants;
_ -> anyone
end
end,
Fs1 = [{roomname, Config#config.title},
{description, Config#config.description},
{contactjid, get_owners(StateData)},
{changesubject, Config#config.allow_change_subj},
{allowinvites, Config#config.allow_user_invites},
{allowpm, AllowPM},
{lang, Config#config.lang}],
Fs2 = case Config#config.pubsub of
Node when is_binary(Node), Node /= <<"">> ->
[{pubsub, Node}|Fs1];
_ ->
Fs1
end,
Fs3 = case Static of
false ->
[{occupants, maps:size(StateData#state.nicks)}|Fs2];
true ->
Fs2
end,
Fs4 = case Config#config.logging of
true ->
case mod_muc_log:get_url(StateData) of
{ok, URL} ->
[{logs, URL}|Fs3];
error ->
Fs3
end;
false ->
Fs3
end,
#xdata{type = result,
fields = muc_roominfo:encode(Fs4, Lang)}.
-spec process_iq_disco_items(jid(), iq(), state()) ->
{error, stanza_error()} | {result, disco_items()}.
process_iq_disco_items(_From, #iq{type = set, lang = Lang}, _StateData) ->
Txt = ?T("Value 'set' of 'type' attribute is not allowed"),
{error, xmpp:err_not_allowed(Txt, Lang)};
process_iq_disco_items(From, #iq{type = get, sub_els = [#disco_items{node = <<>>}]},
StateData) ->
case (StateData#state.config)#config.public_list of
true ->
{result, get_mucroom_disco_items(StateData)};
_ ->
case is_occupant_or_admin(From, StateData) of
true ->
{result, get_mucroom_disco_items(StateData)};
_ ->
%% If the list of occupants is private,
%% the room MUST return an empty <query/> element
%% (http://xmpp.org/extensions/xep-0045.html#disco-roomitems)
{result, #disco_items{}}
end
end;
process_iq_disco_items(_From, #iq{lang = Lang}, _StateData) ->
Txt = ?T("Node not found"),
{error, xmpp:err_item_not_found(Txt, Lang)}.
-spec process_iq_captcha(jid(), iq(), state()) -> {error, stanza_error()} |
{result, undefined}.
process_iq_captcha(_From, #iq{type = get, lang = Lang}, _StateData) ->
Txt = ?T("Value 'get' of 'type' attribute is not allowed"),
{error, xmpp:err_not_allowed(Txt, Lang)};
process_iq_captcha(_From, #iq{type = set, lang = Lang, sub_els = [SubEl]},
_StateData) ->
case ejabberd_captcha:process_reply(SubEl) of
ok -> {result, undefined};
{error, malformed} ->
Txt = ?T("Incorrect CAPTCHA submit"),
{error, xmpp:err_bad_request(Txt, Lang)};
_ ->
Txt = ?T("The CAPTCHA verification has failed"),
{error, xmpp:err_not_allowed(Txt, Lang)}
end.
-spec process_iq_vcard(jid(), iq(), state()) ->
{result, vcard_temp() | xmlel()} |
{result, undefined, state()} |
{error, stanza_error()}.
process_iq_vcard(_From, #iq{type = get}, StateData) ->
#state{config = #config{vcard = VCardRaw}} = StateData,
case fxml_stream:parse_element(VCardRaw) of
#xmlel{} = VCard ->
{result, VCard};
{error, _} ->
{error, xmpp:err_item_not_found()}
end;
process_iq_vcard(From, #iq{type = set, lang = Lang, sub_els = [Pkt]},
StateData) ->
case get_affiliation(From, StateData) of
owner ->
SubEl = xmpp:encode(Pkt),
VCardRaw = fxml:element_to_binary(SubEl),
Hash = mod_vcard_xupdate:compute_hash(SubEl),
Config = StateData#state.config,
NewConfig = Config#config{vcard = VCardRaw, vcard_xupdate = Hash},
change_config(NewConfig, StateData);
_ ->
ErrText = ?T("Owner privileges required"),
{error, xmpp:err_forbidden(ErrText, Lang)}
end.
-spec process_iq_mucsub(jid(), iq(), state()) ->
{error, stanza_error()} |
{result, undefined | muc_subscribe() | muc_subscriptions(), state()} |
{ignore, state()}.
process_iq_mucsub(_From, #iq{type = set, lang = Lang,
sub_els = [#muc_subscribe{}]},
#state{just_created = Just, config = #config{allow_subscription = false}}) when Just /= true ->
{error, xmpp:err_not_allowed(?T("Subscriptions are not allowed"), Lang)};
process_iq_mucsub(From,
#iq{type = set, lang = Lang,
sub_els = [#muc_subscribe{jid = #jid{} = SubJid} = Mucsub]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
FRole = get_role(From, StateData),
if FRole == moderator; FAffiliation == owner; FAffiliation == admin ->
process_iq_mucsub(SubJid,
#iq{type = set, lang = Lang,
sub_els = [Mucsub#muc_subscribe{jid = undefined}]},
StateData);
true ->
Txt = ?T("Moderator privileges required"),
{error, xmpp:err_forbidden(Txt, Lang)}
end;
process_iq_mucsub(From,
#iq{type = set, lang = Lang,
sub_els = [#muc_subscribe{nick = Nick}]} = Packet,
StateData) ->
LBareJID = jid:tolower(jid:remove_resource(From)),
try maps:get(LBareJID, StateData#state.subscribers) of
#subscriber{nick = Nick1} when Nick1 /= Nick ->
Nodes = get_subscription_nodes(Packet),
case {nick_collision(From, Nick, StateData),
mod_muc:can_use_nick(StateData#state.server_host,
StateData#state.host,
From, Nick)} of
{true, _} ->
ErrText = ?T("That nickname is already in use by another occupant"),
{error, xmpp:err_conflict(ErrText, Lang)};
{_, false} ->
Err = case Nick of
<<>> ->
xmpp:err_jid_malformed(?T("Nickname can't be empty"),
Lang);
_ ->
xmpp:err_conflict(?T("That nickname is registered"
" by another person"), Lang)
end,
{error, Err};
_ ->
NewStateData = set_subscriber(From, Nick, Nodes, StateData),
{result, subscribe_result(Packet), NewStateData}
end;
#subscriber{} ->
Nodes = get_subscription_nodes(Packet),
NewStateData = set_subscriber(From, Nick, Nodes, StateData),
{result, subscribe_result(Packet), NewStateData}
catch _:{badkey, _} ->
SD2 = StateData#state{config = (StateData#state.config)#config{allow_subscription = true}},
add_new_user(From, Nick, Packet, SD2)
end;
process_iq_mucsub(From, #iq{type = set, lang = Lang,
sub_els = [#muc_unsubscribe{jid = #jid{} = UnsubJid}]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
FRole = get_role(From, StateData),
if FRole == moderator; FAffiliation == owner; FAffiliation == admin ->
process_iq_mucsub(UnsubJid,
#iq{type = set, lang = Lang,
sub_els = [#muc_unsubscribe{jid = undefined}]},
StateData);
true ->
Txt = ?T("Moderator privileges required"),
{error, xmpp:err_forbidden(Txt, Lang)}
end;
process_iq_mucsub(From, #iq{type = set, sub_els = [#muc_unsubscribe{}]},
#state{room = Room, host = Host, server_host = ServerHost} = StateData) ->
BareJID = jid:remove_resource(From),
LBareJID = jid:tolower(BareJID),
try maps:get(LBareJID, StateData#state.subscribers) of
#subscriber{nick = Nick} ->
Nicks = maps:remove(Nick, StateData#state.subscriber_nicks),
Subscribers = maps:remove(LBareJID, StateData#state.subscribers),
NewStateData = StateData#state{subscribers = Subscribers,
subscriber_nicks = Nicks},
store_room(NewStateData, [{del_subscription, LBareJID}]),
send_subscriptions_change_notifications(BareJID, Nick, unsubscribe, StateData),
ejabberd_hooks:run(muc_unsubscribed, ServerHost, [ServerHost, Room, Host, BareJID]),
NewStateData2 = case close_room_if_temporary_and_empty(NewStateData) of
{stop, normal, _} -> stop;
{next_state, normal_state, SD} -> SD
end,
{result, undefined, NewStateData2}
catch _:{badkey, _} ->
{result, undefined, StateData}
end;
process_iq_mucsub(From, #iq{type = get, lang = Lang,
sub_els = [#muc_subscriptions{}]},
StateData) ->
FAffiliation = get_affiliation(From, StateData),
FRole = get_role(From, StateData),
IsModerator = FRole == moderator orelse FAffiliation == owner orelse
FAffiliation == admin,
case IsModerator orelse is_subscriber(From, StateData) of
true ->
ShowJid = IsModerator orelse
(StateData#state.config)#config.anonymous == false,
Subs = maps:fold(
fun(_, #subscriber{jid = J, nick = N, nodes = Nodes}, Acc) ->
case ShowJid of
true ->
[#muc_subscription{jid = J, events = Nodes}|Acc];
_ ->
[#muc_subscription{nick = N, events = Nodes}|Acc]
end
end, [], StateData#state.subscribers),
{result, #muc_subscriptions{list = Subs}, StateData};
_ ->
Txt = ?T("Moderator privileges required"),
{error, xmpp:err_forbidden(Txt, Lang)}
end;
process_iq_mucsub(_From, #iq{type = get, lang = Lang}, _StateData) ->
Txt = ?T("Value 'get' of 'type' attribute is not allowed"),
{error, xmpp:err_bad_request(Txt, Lang)}.
-spec remove_subscriptions(state()) -> state().
remove_subscriptions(StateData) ->
if not (StateData#state.config)#config.allow_subscription ->
StateData#state{subscribers = #{},
subscriber_nicks = #{}};
true ->
StateData
end.
-spec get_subscription_nodes(stanza()) -> [binary()].
get_subscription_nodes(#iq{sub_els = [#muc_subscribe{events = Nodes}]}) ->
lists:filter(
fun(Node) ->
lists:member(Node, [?NS_MUCSUB_NODES_PRESENCE,
?NS_MUCSUB_NODES_MESSAGES,
?NS_MUCSUB_NODES_AFFILIATIONS,
?NS_MUCSUB_NODES_SUBJECT,
?NS_MUCSUB_NODES_CONFIG,
?NS_MUCSUB_NODES_PARTICIPANTS,
?NS_MUCSUB_NODES_SUBSCRIBERS])
end, Nodes);
get_subscription_nodes(_) ->
[].
-spec subscribe_result(iq()) -> muc_subscribe().
subscribe_result(#iq{sub_els = [#muc_subscribe{nick = Nick}]} = Packet) ->
#muc_subscribe{nick = Nick, events = get_subscription_nodes(Packet)}.
-spec get_title(state()) -> binary().
get_title(StateData) ->
case (StateData#state.config)#config.title of
<<"">> -> StateData#state.room;
Name -> Name
end.
-spec get_roomdesc_reply(jid(), state(), binary()) -> {item, binary()} | false.
get_roomdesc_reply(JID, StateData, Tail) ->
IsOccupantOrAdmin = is_occupant_or_admin(JID,
StateData),
if (StateData#state.config)#config.public or
IsOccupantOrAdmin ->
if (StateData#state.config)#config.public_list or
IsOccupantOrAdmin ->
{item, <<(get_title(StateData))/binary,Tail/binary>>};
true -> {item, get_title(StateData)}
end;
true -> false
end.
-spec get_roomdesc_tail(state(), binary()) -> binary().
get_roomdesc_tail(StateData, Lang) ->
Desc = case (StateData#state.config)#config.public of
true -> <<"">>;
_ -> translate:translate(Lang, ?T("private, "))
end,
Len = maps:size(StateData#state.nicks),
<<" (", Desc/binary, (integer_to_binary(Len))/binary, ")">>.
-spec get_mucroom_disco_items(state()) -> disco_items().
get_mucroom_disco_items(StateData) ->
Items = maps:fold(
fun(Nick, _, Acc) ->
[#disco_item{jid = jid:make(StateData#state.room,
StateData#state.host,
Nick),
name = Nick}|Acc]
end, [], StateData#state.nicks),
#disco_items{items = Items}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Voice request support
-spec prepare_request_form(jid(), binary(), binary()) -> message().
prepare_request_form(Requester, Nick, Lang) ->
Title = translate:translate(Lang, ?T("Voice request")),
Instruction = translate:translate(
Lang, ?T("Either approve or decline the voice request.")),
Fs = muc_request:encode([{role, participant},
{jid, Requester},
{roomnick, Nick},
{request_allow, false}],
Lang),
#message{type = normal,
sub_els = [#xdata{type = form,
title = Title,
instructions = [Instruction],
fields = Fs}]}.
-spec send_voice_request(jid(), binary(), state()) -> ok.
send_voice_request(From, Lang, StateData) ->
Moderators = search_role(moderator, StateData),
FromNick = find_nick_by_jid(From, StateData),
lists:foreach(
fun({_, User}) ->
ejabberd_router:route(
xmpp:set_from_to(
prepare_request_form(From, FromNick, Lang),
StateData#state.jid, User#user.jid))
end, Moderators).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Invitation support
-spec check_invitation(jid(), [muc_invite()], binary(), state()) ->
ok | {error, stanza_error()}.
check_invitation(From, Invitations, Lang, StateData) ->
FAffiliation = get_affiliation(From, StateData),
CanInvite = (StateData#state.config)#config.allow_user_invites orelse
FAffiliation == admin orelse FAffiliation == owner,
case CanInvite of
true ->
case lists:all(
fun(#muc_invite{to = #jid{}}) -> true;
(_) -> false
end, Invitations) of
true ->
ok;
false ->
Txt = ?T("No 'to' attribute found in the invitation"),
{error, xmpp:err_bad_request(Txt, Lang)}
end;
false ->
Txt = ?T("Invitations are not allowed in this conference"),
{error, xmpp:err_not_allowed(Txt, Lang)}
end.
-spec route_invitation(jid(), message(), muc_invite(), binary(), state()) -> jid().
route_invitation(From, Pkt, Invitation, Lang, StateData) ->
#muc_invite{to = JID, reason = Reason} = Invitation,
Invite = Invitation#muc_invite{to = undefined, from = From},
Password = case (StateData#state.config)#config.password_protected of
true ->
(StateData#state.config)#config.password;
false ->
undefined
end,
XUser = #muc_user{password = Password, invites = [Invite]},
XConference = #x_conference{jid = jid:make(StateData#state.room,
StateData#state.host),
reason = Reason},
Body = iolist_to_binary(
[io_lib:format(
translate:translate(
Lang,
?T("~s invites you to the room ~s")),
[jid:encode(From),
jid:encode({StateData#state.room, StateData#state.host, <<"">>})]),
case (StateData#state.config)#config.password_protected of
true ->
<<", ",
(translate:translate(
Lang, ?T("the password is")))/binary,
" '",
((StateData#state.config)#config.password)/binary,
"'">>;
_ -> <<"">>
end,
case Reason of
<<"">> -> <<"">>;
_ -> <<" (", Reason/binary, ") ">>
end]),
Msg = #message{from = StateData#state.jid,
to = JID,
type = normal,
body = xmpp:mk_text(Body),
sub_els = [XUser, XConference]},
Msg2 = ejabberd_hooks:run_fold(muc_invite,
StateData#state.server_host,
Msg,
[StateData#state.jid, StateData#state.config,
From, JID, Reason, Pkt]),
ejabberd_router:route(Msg2),
JID.
%% Handle a message sent to the room by a non-participant.
%% If it is a decline, send to the inviter.
%% Otherwise, an error message is sent to the sender.
-spec handle_roommessage_from_nonparticipant(message(), state(), jid()) -> ok.
handle_roommessage_from_nonparticipant(Packet, StateData, From) ->
try xmpp:try_subtag(Packet, #muc_user{}) of
#muc_user{decline = #muc_decline{to = #jid{} = To} = Decline} = XUser ->
NewDecline = Decline#muc_decline{to = undefined, from = From},
NewXUser = XUser#muc_user{decline = NewDecline},
NewPacket = xmpp:set_subtag(Packet, NewXUser),
ejabberd_router:route(
xmpp:set_from_to(NewPacket, StateData#state.jid, To));
_ ->
ErrText = ?T("Only occupants are allowed to send messages "
"to the conference"),
Err = xmpp:err_not_acceptable(ErrText, xmpp:get_lang(Packet)),
ejabberd_router:route_error(Packet, Err)
catch _:{xmpp_codec, Why} ->
Txt = xmpp:io_format_error(Why),
Err = xmpp:err_bad_request(Txt, xmpp:get_lang(Packet)),
ejabberd_router:route_error(Packet, Err)
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Logging
add_to_log(Type, Data, StateData)
when Type == roomconfig_change_disabledlogging ->
mod_muc_log:add_to_log(StateData#state.server_host,
roomconfig_change, Data, StateData#state.jid,
make_opts(StateData));
add_to_log(Type, Data, StateData) ->
case (StateData#state.config)#config.logging of
true ->
mod_muc_log:add_to_log(StateData#state.server_host,
Type, Data, StateData#state.jid,
make_opts(StateData));
false -> ok
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Users number checking
-spec tab_add_online_user(jid(), state()) -> any().
tab_add_online_user(JID, StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
ServerHost = StateData#state.server_host,
ejabberd_hooks:run(join_room, ServerHost, [ServerHost, Room, Host, JID]),
mod_muc:register_online_user(ServerHost, jid:tolower(JID), Room, Host).
-spec tab_remove_online_user(jid(), state()) -> any().
tab_remove_online_user(JID, StateData) ->
Room = StateData#state.room,
Host = StateData#state.host,
ServerHost = StateData#state.server_host,
ejabberd_hooks:run(leave_room, ServerHost, [ServerHost, Room, Host, JID]),
mod_muc:unregister_online_user(ServerHost, jid:tolower(JID), Room, Host).
-spec tab_count_user(jid(), state()) -> non_neg_integer().
tab_count_user(JID, StateData) ->
ServerHost = StateData#state.server_host,
{LUser, LServer, _} = jid:tolower(JID),
mod_muc:count_online_rooms_by_user(ServerHost, LUser, LServer).
-spec element_size(stanza()) -> non_neg_integer().
element_size(El) ->
byte_size(fxml:element_to_binary(xmpp:encode(El, ?NS_CLIENT))).
-spec store_room(state()) -> ok.
store_room(StateData) ->
store_room(StateData, []).
store_room(StateData, ChangesHints) ->
% Let store persistent rooms or on those backends that have get_subscribed_rooms
Mod = gen_mod:db_mod(StateData#state.server_host, mod_muc),
HasGSR = erlang:function_exported(Mod, get_subscribed_rooms, 3),
case HasGSR of
true ->
ok;
_ ->
erlang:put(muc_subscribers, StateData#state.subscribers)
end,
ShouldStore = case (StateData#state.config)#config.persistent of
true ->
true;
_ ->
case ChangesHints of
[] ->
false;
_ ->
HasGSR
end
end,
if ShouldStore ->
store_room_no_checks(StateData, ChangesHints);
true ->
ok
end.
store_room_no_checks(StateData, ChangesHints) ->
mod_muc:store_room(StateData#state.server_host,
StateData#state.host, StateData#state.room,
make_opts(StateData),
ChangesHints).
-spec send_subscriptions_change_notifications(jid(), binary(), subscribe|unsubscribe, state()) -> ok.
send_subscriptions_change_notifications(From, Nick, Type, State) ->
maps:fold(fun(_, #subscriber{nodes = Nodes, jid = JID}, _) ->
case lists:member(?NS_MUCSUB_NODES_SUBSCRIBERS, Nodes) of
true ->
ShowJid = case (State#state.config)#config.anonymous == false orelse
get_role(JID, State) == moderator orelse
get_default_role(get_affiliation(JID, State), State) == moderator of
true -> true;
_ -> false
end,
Payload = case {Type, ShowJid} of
{subscribe, true} ->
#muc_subscribe{jid = From, nick = Nick};
{subscribe, _} ->
#muc_subscribe{nick = Nick};
{unsubscribe, true} ->
#muc_unsubscribe{jid = From, nick = Nick};
{unsubscribe, _} ->
#muc_unsubscribe{nick = Nick}
end,
Packet = #message{
sub_els = [#ps_event{
items = #ps_items{
node = ?NS_MUCSUB_NODES_SUBSCRIBERS,
items = [#ps_item{
id = p1_rand:get_string(),
sub_els = [Payload]}]}}]},
ejabberd_router:route(xmpp:set_from_to(Packet, State#state.jid, JID));
false ->
ok
end
end, ok, State#state.subscribers).
-spec send_wrapped(jid(), jid(), stanza(), binary(), state()) -> ok.
send_wrapped(From, To, Packet, Node, State) ->
LTo = jid:tolower(To),
LBareTo = jid:tolower(jid:remove_resource(To)),
IsOffline = case maps:get(LTo, State#state.users, error) of
#user{last_presence = undefined} -> true;
error -> true;
_ -> false
end,
if IsOffline ->
try maps:get(LBareTo, State#state.subscribers) of
#subscriber{nodes = Nodes, jid = JID} ->
case lists:member(Node, Nodes) of
true ->
MamEnabled = (State#state.config)#config.mam,
Id = case xmpp:get_subtag(Packet, #stanza_id{by = #jid{}}) of
#stanza_id{id = Id2} ->
Id2;
_ ->
p1_rand:get_string()
end,
NewPacket = wrap(From, JID, Packet, Node, Id),
NewPacket2 = xmpp:put_meta(NewPacket, in_muc_mam, MamEnabled),
ejabberd_router:route(
xmpp:set_from_to(NewPacket2, State#state.jid, JID));
false ->
ok
end
catch _:{badkey, _} ->
ok
end;
true ->
case Packet of
#presence{type = unavailable} ->
case xmpp:get_subtag(Packet, #muc_user{}) of
#muc_user{destroy = Destroy,
status_codes = Codes} ->
case Destroy /= undefined orelse
(lists:member(110,Codes) andalso
not lists:member(303, Codes)) of
true ->
ejabberd_router:route(
#presence{from = State#state.jid, to = To,
id = p1_rand:get_string(),
type = unavailable});
false ->
ok
end;
_ ->
false
end;
_ ->
ok
end,
ejabberd_router:route(xmpp:set_from_to(Packet, From, To))
end.
-spec wrap(jid(), jid(), stanza(), binary(), binary()) -> message().
wrap(From, To, Packet, Node, Id) ->
El = xmpp:set_from_to(Packet, From, To),
#message{
id = Id,
sub_els = [#ps_event{
items = #ps_items{
node = Node,
items = [#ps_item{
id = Id,
sub_els = [El]}]}}]}.
-spec send_wrapped_multiple(jid(), users(), stanza(), binary(), state()) -> ok.
send_wrapped_multiple(From, Users, Packet, Node, State) ->
maps:fold(
fun(_, #user{jid = To}, _) ->
send_wrapped(From, To, Packet, Node, State)
end, ok, Users).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Detect messange stanzas that don't have meaningful content
-spec has_body_or_subject(message()) -> boolean().
has_body_or_subject(#message{body = Body, subject = Subj}) ->
Body /= [] orelse Subj /= [].
-spec reset_hibernate_timer(state()) -> state().
reset_hibernate_timer(State) ->
case State#state.hibernate_timer of
hibernating ->
ok;
_ ->
disable_hibernate_timer(State),
NewTimer = case {mod_muc_opt:hibernation_timeout(State#state.server_host),
maps:size(State#state.users)} of
{infinity, _} ->
none;
{Timeout, 0} ->
p1_fsm:send_event_after(Timeout, hibernate);
_ ->
none
end,
State#state{hibernate_timer = NewTimer}
end.
-spec disable_hibernate_timer(state()) -> ok.
disable_hibernate_timer(State) ->
case State#state.hibernate_timer of
Ref when is_reference(Ref) ->
p1_fsm:cancel_timer(Ref),
ok;
_ ->
ok
end.
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