mirror of
https://github.com/processone/ejabberd.git
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105 lines
3.6 KiB
Erlang
105 lines
3.6 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_sic.erl
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%%% Author : Karim Gemayel <karim.gemayel@process-one.net>
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%%% Purpose : XEP-0279 Server IP Check
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%%% Created : 6 Mar 2010 by Karim Gemayel <karim.gemayel@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_sic).
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-protocol({xep, 279, '0.2'}).
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-author('karim.gemayel@process-one.net').
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-behaviour(gen_mod).
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-export([start/2, stop/1, process_local_iq/3,
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process_sm_iq/3, mod_opt_type/1, depends/2]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-include("jlib.hrl").
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-define(NS_SIC, <<"urn:xmpp:sic:0">>).
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start(Host, Opts) ->
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IQDisc = gen_mod:get_opt(iqdisc, Opts, fun gen_iq_handler:check_type/1,
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one_queue),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host,
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?NS_SIC, ?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host,
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?NS_SIC, ?MODULE, process_sm_iq, IQDisc).
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stop(Host) ->
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host,
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?NS_SIC),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host,
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?NS_SIC).
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depends(_Host, _Opts) ->
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[].
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process_local_iq(#jid{user = User, server = Server,
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resource = Resource},
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_To, #iq{type = get, sub_el = _SubEl} = IQ) ->
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get_ip({User, Server, Resource}, IQ);
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process_local_iq(_From, _To,
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#iq{type = set, sub_el = SubEl, lang = Lang} = IQ) ->
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Txt = <<"Value 'set' of 'type' attribute is not allowed">>,
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IQ#iq{type = error, sub_el = [SubEl, ?ERRT_NOT_ALLOWED(Lang, Txt)]}.
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process_sm_iq(#jid{user = User, server = Server,
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resource = Resource},
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#jid{user = User, server = Server},
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#iq{type = get, sub_el = _SubEl} = IQ) ->
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get_ip({User, Server, Resource}, IQ);
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process_sm_iq(_From, _To,
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#iq{type = get, sub_el = SubEl, lang = Lang} = IQ) ->
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Txt = <<"Query to another users is forbidden">>,
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IQ#iq{type = error, sub_el = [SubEl, ?ERRT_FORBIDDEN(Lang, Txt)]};
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process_sm_iq(_From, _To,
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#iq{type = set, sub_el = SubEl, lang = Lang} = IQ) ->
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Txt = <<"Value 'set' of 'type' attribute is not allowed">>,
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IQ#iq{type = error, sub_el = [SubEl, ?ERRT_NOT_ALLOWED(Lang, Txt)]}.
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get_ip({User, Server, Resource},
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#iq{lang = Lang,
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sub_el =
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#xmlel{name = Name, attrs = Attrs} = SubEl} =
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IQ) ->
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case ejabberd_sm:get_user_ip(User, Server, Resource) of
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{IP, _} when is_tuple(IP) ->
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IQ#iq{type = result,
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sub_el =
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[#xmlel{name = Name, attrs = Attrs,
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children =
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[{xmlcdata,
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iolist_to_binary(jlib:ip_to_list(IP))}]}]};
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_ ->
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Txt = <<"User session not found">>,
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IQ#iq{type = error,
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sub_el = [SubEl, ?ERRT_INTERNAL_SERVER_ERROR(Lang, Txt)]}
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end.
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mod_opt_type(iqdisc) -> fun gen_iq_handler:check_type/1;
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mod_opt_type(_) -> [iqdisc].
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