79 lines
2.6 KiB
Erlang
79 lines
2.6 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_time.erl
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%%% Author : Alexey Shchepin <alexey@process-one.net>
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%%% Purpose :
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%%% Purpose :
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%%% Created : 18 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2020 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_time).
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-author('alexey@process-one.net').
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-protocol({xep, 202, '2.0'}).
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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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mod_options/1, depends/2, mod_doc/0]).
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-include("logger.hrl").
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-include("xmpp.hrl").
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-include("translate.hrl").
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start(Host, _Opts) ->
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gen_iq_handler:add_iq_handler(ejabberd_local, Host,
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?NS_TIME, ?MODULE, process_local_iq).
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stop(Host) ->
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gen_iq_handler:remove_iq_handler(ejabberd_local, Host,
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?NS_TIME).
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reload(_Host, _NewOpts, _OldOpts) ->
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ok.
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-spec process_local_iq(iq()) -> iq().
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process_local_iq(#iq{type = set, lang = Lang} = IQ) ->
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Txt = ?T("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_local_iq(#iq{type = get} = IQ) ->
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Now = erlang:timestamp(),
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Now_universal = calendar:now_to_universal_time(Now),
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Now_local = calendar:universal_time_to_local_time(Now_universal),
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Seconds_diff =
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calendar:datetime_to_gregorian_seconds(Now_local) -
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calendar:datetime_to_gregorian_seconds(Now_universal),
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{Hd, Md, _} = calendar:seconds_to_time(abs(Seconds_diff)),
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xmpp:make_iq_result(IQ, #time{tzo = {Hd, Md}, utc = Now}).
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depends(_Host, _Opts) ->
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[].
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mod_options(_Host) ->
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[].
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mod_doc() ->
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#{desc =>
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?T("This module adds support for "
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"https://xmpp.org/extensions/xep-0202.html"
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"[XEP-0202: Entity Time]. In other words, "
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"the module reports server's system time.")}.
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