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%%%----------------------------------------------------------------------
%%% File : mod_time.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose :
%%% Purpose :
%%% Created : 18 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2016 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_time).
-author('alexey@process-one.net').
-protocol({xep, 202, '2.0'}).
-behaviour(gen_mod).
-export([start/2, stop/1, process_local_iq/3,
mod_opt_type/1]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("jlib.hrl").
start(Host, Opts) ->
IQDisc = gen_mod:get_opt(iqdisc, Opts, fun gen_iq_handler:check_type/1,
one_queue),
gen_iq_handler:add_iq_handler(ejabberd_local, Host,
?NS_TIME, ?MODULE, process_local_iq, IQDisc).
stop(Host) ->
gen_iq_handler:remove_iq_handler(ejabberd_local, Host,
?NS_TIME).
process_local_iq(_From, _To,
#iq{type = Type, sub_el = SubEl} = IQ) ->
case Type of
set ->
IQ#iq{type = error, sub_el = [SubEl, ?ERR_NOT_ALLOWED]};
get ->
Now_universal = calendar:universal_time(),
Now_local = calendar:universal_time_to_local_time(Now_universal),
{UTC, UTC_diff} = jlib:timestamp_to_iso(Now_universal,
utc),
Seconds_diff =
calendar:datetime_to_gregorian_seconds(Now_local) -
calendar:datetime_to_gregorian_seconds(Now_universal),
{Hd, Md, _} =
calendar:seconds_to_time(abs(Seconds_diff)),
{_, TZO_diff} = jlib:timestamp_to_iso({{0, 1, 1},
{0, 0, 0}},
{sign(Seconds_diff), {Hd, Md}}),
IQ#iq{type = result,
sub_el =
[#xmlel{name = <<"time">>,
attrs = [{<<"xmlns">>, ?NS_TIME}],
children =
[#xmlel{name = <<"tzo">>, attrs = [],
children = [{xmlcdata, TZO_diff}]},
#xmlel{name = <<"utc">>, attrs = [],
children =
[{xmlcdata,
<<UTC/binary,
UTC_diff/binary>>}]}]}]}
end.
sign(N) when N < 0 -> <<"-">>;
sign(_) -> <<"+">>.
mod_opt_type(iqdisc) -> fun gen_iq_handler:check_type/1;
mod_opt_type(_) -> [iqdisc].
|
