New hook: muc_filter_presence
Add a hook that allows for modifying or dropping presence stanzas sent to MUC rooms.
This commit is contained in:
Holger Weiss
parent
e3b7d43b76
commit
3d4e8ffac6
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@ -1035,117 +1035,125 @@ get_participant_data(From, StateData) ->
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end.
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process_presence(From, Nick,
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#xmlel{name = <<"presence">>, attrs = Attrs} = Packet,
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#xmlel{name = <<"presence">>, attrs = Attrs0} = Packet0,
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StateData) ->
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Type = xml:get_attr_s(<<"type">>, Attrs),
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Lang = xml:get_attr_s(<<"xml:lang">>, Attrs),
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StateData1 = case Type of
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<<"unavailable">> ->
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case is_user_online(From, StateData) of
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true ->
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NewPacket = case
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{(StateData#state.config)#config.allow_visitor_status,
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is_visitor(From, StateData)}
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of
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{false, true} ->
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strip_status(Packet);
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_ -> Packet
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end,
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NewState = add_user_presence_un(From, NewPacket,
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StateData),
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case (?DICT):find(Nick, StateData#state.nicks) of
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{ok, [_, _ | _]} -> ok;
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_ -> send_new_presence(From, NewState)
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end,
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Reason = case xml:get_subtag(NewPacket,
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<<"status">>)
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of
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false -> <<"">>;
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Status_el ->
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xml:get_tag_cdata(Status_el)
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end,
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remove_online_user(From, NewState, Reason);
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_ -> StateData
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end;
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<<"error">> ->
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case is_user_online(From, StateData) of
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true ->
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ErrorText =
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<<"This participant is kicked from the "
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"room because he sent an error presence">>,
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expulse_participant(Packet, From, StateData,
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translate:translate(Lang,
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ErrorText));
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_ -> StateData
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end;
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<<"">> ->
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case is_user_online(From, StateData) of
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true ->
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case is_nick_change(From, Nick, StateData) of
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true ->
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case {nick_collision(From, Nick, StateData),
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mod_muc:can_use_nick(StateData#state.server_host,
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StateData#state.host,
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From, Nick),
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{(StateData#state.config)#config.allow_visitor_nickchange,
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is_visitor(From, StateData)}}
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of
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{_, _, {false, true}} ->
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ErrText =
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<<"Visitors are not allowed to change their "
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"nicknames in this room">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_NOT_ALLOWED(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick),
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From, Err),
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StateData;
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{true, _, _} ->
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Lang = xml:get_attr_s(<<"xml:lang">>,
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Attrs),
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ErrText =
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<<"That nickname is already in use by another "
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"occupant">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_CONFLICT(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick), % TODO: s/Nick/""/
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From, Err),
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StateData;
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{_, false, _} ->
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ErrText =
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<<"That nickname is registered by another "
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"person">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_CONFLICT(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick),
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From, Err),
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StateData;
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_ -> change_nick(From, Nick, StateData)
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end;
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_NotNickChange ->
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Stanza = case
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{(StateData#state.config)#config.allow_visitor_status,
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is_visitor(From, StateData)}
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of
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{false, true} ->
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strip_status(Packet);
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_Allowed -> Packet
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end,
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NewState = add_user_presence(From, Stanza,
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StateData),
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send_new_presence(From, NewState),
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NewState
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end;
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_ -> add_new_user(From, Nick, Packet, StateData)
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end;
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_ -> StateData
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end,
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close_room_if_temporary_and_empty(StateData1).
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Type0 = xml:get_attr_s(<<"type">>, Attrs0),
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IsOnline = is_user_online(From, StateData),
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if Type0 == <<"">>;
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IsOnline and ((Type0 == <<"unavailable">>) or (Type0 == <<"error">>)) ->
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case ejabberd_hooks:run_fold(muc_filter_presence,
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StateData#state.server_host,
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Packet0,
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[StateData,
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StateData#state.jid,
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From, Nick]) of
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drop ->
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{next_state, normal_state, StateData};
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#xmlel{attrs = Attrs} = Packet ->
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Type = xml:get_attr_s(<<"xml:lang">>, Attrs),
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Lang = xml:get_attr_s(<<"xml:lang">>, Attrs),
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StateData1 = case Type of
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<<"unavailable">> ->
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NewPacket = case
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{(StateData#state.config)#config.allow_visitor_status,
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is_visitor(From, StateData)}
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of
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{false, true} ->
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strip_status(Packet);
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_ -> Packet
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end,
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NewState = add_user_presence_un(From, NewPacket,
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StateData),
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case (?DICT):find(Nick, StateData#state.nicks) of
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{ok, [_, _ | _]} -> ok;
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_ -> send_new_presence(From, NewState)
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end,
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Reason = case xml:get_subtag(NewPacket,
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<<"status">>)
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of
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false -> <<"">>;
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Status_el ->
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xml:get_tag_cdata(Status_el)
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end,
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remove_online_user(From, NewState, Reason);
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<<"error">> ->
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ErrorText =
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<<"This participant is kicked from the "
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"room because he sent an error presence">>,
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expulse_participant(Packet, From, StateData,
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translate:translate(Lang,
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ErrorText));
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<<"">> ->
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if not IsOnline ->
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add_new_user(From, Nick, Packet, StateData);
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true ->
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case is_nick_change(From, Nick, StateData) of
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true ->
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case {nick_collision(From, Nick, StateData),
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mod_muc:can_use_nick(StateData#state.server_host,
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StateData#state.host,
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From, Nick),
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{(StateData#state.config)#config.allow_visitor_nickchange,
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is_visitor(From, StateData)}}
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of
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{_, _, {false, true}} ->
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ErrText =
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<<"Visitors are not allowed to change their "
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"nicknames in this room">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_NOT_ALLOWED(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick),
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From, Err),
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StateData;
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{true, _, _} ->
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Lang = xml:get_attr_s(<<"xml:lang">>,
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Attrs),
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ErrText =
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<<"That nickname is already in use by another "
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"occupant">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_CONFLICT(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick), % TODO: s/Nick/""/
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From, Err),
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StateData;
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{_, false, _} ->
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ErrText =
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<<"That nickname is registered by another "
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"person">>,
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Err = jlib:make_error_reply(Packet,
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?ERRT_CONFLICT(Lang,
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ErrText)),
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ejabberd_router:route(jlib:jid_replace_resource(StateData#state.jid,
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Nick),
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From, Err),
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StateData;
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_ -> change_nick(From, Nick, StateData)
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end;
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_NotNickChange ->
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Stanza = case
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{(StateData#state.config)#config.allow_visitor_status,
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is_visitor(From, StateData)}
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of
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{false, true} ->
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strip_status(Packet);
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_Allowed -> Packet
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end,
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NewState = add_user_presence(From, Stanza,
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StateData),
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send_new_presence(From, NewState),
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NewState
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end
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end
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end,
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close_room_if_temporary_and_empty(StateData1)
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end;
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true ->
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{next_state, normal_state, StateData}
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end.
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close_room_if_temporary_and_empty(StateData1) ->
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case not (StateData1#state.config)#config.persistent
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