mirror of
https://github.com/processone/ejabberd.git
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112 lines
4.2 KiB
Erlang
112 lines
4.2 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) 2002-2017 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, reload/3, process_local_iq/1,
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process_sm_iq/1, 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("xmpp.hrl").
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start(Host, Opts) ->
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IQDisc = gen_mod:get_opt(iqdisc, Opts, gen_iq_handler:iqdisc(Host)),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_SIC_0,
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?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_SIC_0,
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?MODULE, process_sm_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_SIC_1,
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?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_SIC_1,
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?MODULE, process_sm_iq, IQDisc).
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stop(Host) ->
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host, ?NS_SIC_0),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_SIC_0),
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host, ?NS_SIC_1),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_SIC_1).
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reload(Host, NewOpts, OldOpts) ->
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case gen_mod:is_equal_opt(iqdisc, NewOpts, OldOpts, gen_iq_handler:iqdisc(Host)) of
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{false, IQDisc, _} ->
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gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_SIC_0,
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?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_SIC_0,
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?MODULE, process_sm_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_SIC_1,
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?MODULE, process_local_iq, IQDisc),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_SIC_1,
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?MODULE, process_sm_iq, IQDisc);
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true ->
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ok
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end.
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depends(_Host, _Opts) ->
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[].
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process_local_iq(#iq{from = #jid{user = User, server = Server,
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resource = Resource},
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type = get} = IQ) ->
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get_ip({User, Server, Resource}, IQ);
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process_local_iq(#iq{type = set, lang = Lang} = IQ) ->
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Txt = <<"Value 'set' of 'type' attribute is not allowed">>,
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xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang)).
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process_sm_iq(#iq{from = #jid{user = User, server = Server,
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resource = Resource},
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to = #jid{user = User, server = Server},
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type = get} = IQ) ->
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get_ip({User, Server, Resource}, IQ);
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process_sm_iq(#iq{type = get, lang = Lang} = IQ) ->
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Txt = <<"Query to another users is forbidden">>,
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xmpp:make_error(IQ, xmpp:err_forbidden(Txt, Lang));
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process_sm_iq(#iq{type = set, lang = Lang} = IQ) ->
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Txt = <<"Value 'set' of 'type' attribute is not allowed">>,
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xmpp:make_error(IQ, xmpp:err_not_allowed(Txt, Lang)).
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get_ip({User, Server, Resource},
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#iq{lang = Lang, sub_els = [#sic{xmlns = NS}]} = IQ) ->
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case ejabberd_sm:get_user_ip(User, Server, Resource) of
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{IP, Port} when is_tuple(IP) ->
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Result = case NS of
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?NS_SIC_0 -> #sic{ip = IP, xmlns = NS};
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?NS_SIC_1 -> #sic{ip = IP, port = Port, xmlns = NS}
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end,
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xmpp:make_iq_result(IQ, Result);
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_ ->
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Txt = <<"User session not found">>,
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xmpp:make_error(IQ, xmpp:err_item_not_found(Txt, Lang))
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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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