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%%%----------------------------------------------------------------------
%%% File : mod_time.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose :
%%% Created : 18 Jan 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2012 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., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%%
%%%----------------------------------------------------------------------
-module(mod_time).
-author('alexey@process-one.net').
-behaviour(gen_mod).
-export([start/2,
stop/1,
process_local_iq90/3, % TODO: Remove once XEP-0090 is Obsolete
process_local_iq/3]).
-include("ejabberd.hrl").
-include("jlib.hrl").
start(Host, Opts) ->
IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
%% TODO: Remove the next two lines once XEP-0090 is Obsolete
gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_TIME90,
?MODULE, process_local_iq90, IQDisc),
gen_iq_handler:add_iq_handler(ejabberd_local, Host, ?NS_TIME,
?MODULE, process_local_iq, IQDisc).
stop(Host) ->
%% TODO: Remove the next line once XEP-0090 is Obsolete
gen_iq_handler:remove_iq_handler(ejabberd_local, Host, ?NS_TIME90),
gen_iq_handler:remove_iq_handler(ejabberd_local, Host, ?NS_TIME).
%% TODO: Remove this function once XEP-0090 is Obsolete
process_local_iq90(_From, _To, #iq{type = Type, sub_el = SubEl} = IQ) ->
case Type of
set ->
IQ#iq{type = error, sub_el = [SubEl, ?ERR_NOT_ALLOWED]};
get ->
UTC = jlib:timestamp_to_iso(calendar:universal_time()),
IQ#iq{type = result,
sub_el = [{xmlelement, "query",
[{"xmlns", ?NS_TIME90}],
[{xmlelement, "utc", [],
[{xmlcdata, UTC}]}]}]}
end.
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 = now(),
Now_universal = calendar:now_to_universal_time(Now),
Now_local = calendar:now_to_local_time(Now),
{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, 0, 0}, {0, 0, 0}}, {sign(Seconds_diff), {Hd, Md}}),
IQ#iq{type = result,
sub_el = [{xmlelement, "time",
[{"xmlns", ?NS_TIME}],
[{xmlelement, "tzo", [],
[{xmlcdata, TZO_diff}]},
{xmlelement, "utc", [],
[{xmlcdata, UTC ++ UTC_diff}]}]}]}
end.
sign(N) when N < 0 -> "-";
sign(_) -> "+".
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