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<?php
/*
This code is part of FusionDirectory (http://www.fusiondirectory.org/)
Copyright (C) 2003-2010 Cajus Pollmeier
Copyright (C) 2011-2016 FusionDirectory
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 St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*!
* \file class_timezone.inc
* Source code for class timezone
*/
/*!
* \brief This class contains all the function needed to manage the
* timezones
*/
class timezone
{
/*
* \brief This function sets the default timezone according to fusiondirectory configuration.
*
* \return TRUE upon success, FALSE otherwise
*/
static public function setDefaultTimezoneFromConfig()
{
global $config;
/* Is there a timezone set in the fusiondirectory configuration */
if ($config->get_cfg_value('timezone') != '') {
$tz = $config->get_cfg_value('timezone');
if (@date_default_timezone_set($tz)) {
return TRUE;
} else {
msg_dialog::display(
_('Configuration error'),
sprintf(_('The timezone setting "%s" in your configuration is not valid.'), $tz),
ERROR_DIALOG
);
}
}
return FALSE;
}
/*
* \brief This function returns the offset for the default timezone.
*
* deprecated
* \param $stamp is used to detect summer or winter time.
*/
static public function get_default_timezone($stamp = NULL)
{
global $config;
/* Use current timestamp if $stamp is not set */
if ($stamp === NULL) {
$stamp = time();
}
/* Is there a correct timezone set in the fusiondirectory configuration */
if (static::setDefaultTimezoneFromConfig()) {
$tz = $config->get_cfg_value('timezone');
$tz_delta = date('Z', $stamp);
$tz_delta = $tz_delta / 3600;
return array('name' => $tz, 'value' => $tz_delta);
} else {
return array('name' => 'unconfigured', 'value' => 0);
}
}
/*
* \brief Get the time zone informations
*
* \return Time zone informations
*/
static public function _get_tz_zones()
{
return DateTimeZone::listIdentifiers();
}
/* \brief Return default timezone as a DateTimeZone object */
static public function getDefaultTimeZone()
{
return new DateTimeZone(date_default_timezone_get());
}
/* \brief Return UTC timezone as a DateTimeZone object */
static public function utc()
{
static $utc;
if (!isset($utc)) {
$utc = new DateTimeZone('UTC');
}
return $utc;
}
}
?>
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