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<?php
/**
* Creation and parsing of MW-style timestamps.
*
* 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.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @since 1.20
* @author Tyler Romeo, 2012
*/
namespace MediaWiki\Utils;
use DateInterval;
use MediaWiki\Context\RequestContext;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Language\Language;
use MediaWiki\Language\RawMessage;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
use MediaWiki\Message\Message;
use MediaWiki\User\User;
use MediaWiki\User\UserIdentity;
use MediaWiki\User\UserTimeCorrection;
use Wikimedia\Timestamp\ConvertibleTimestamp;
/**
* Library for creating and parsing MW-style timestamps. Based on the JS
* library that does the same thing.
*
* @newable
*
* @since 1.20
*/
class MWTimestamp extends ConvertibleTimestamp {
/**
* Get a timestamp instance in GMT
*
* @param bool|string $ts Timestamp to set, or false for current time
* @return MWTimestamp The instance
*/
public static function getInstance( $ts = false ) {
return new static( $ts );
}
/**
* Adjust the timestamp depending on the given user's preferences.
*
* @since 1.22
*
* @param UserIdentity $user User to take preferences from
* @return DateInterval Offset that was applied to the timestamp
*/
public function offsetForUser( UserIdentity $user ) {
$option = MediaWikiServices::getInstance()->getUserOptionsLookup()->getOption( $user, 'timecorrection' );
$value = new UserTimeCorrection(
$option,
$this->timestamp,
MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::LocalTZoffset )
);
$tz = $value->getTimeZone();
if ( $tz ) {
$this->timestamp->setTimezone( $tz );
return new DateInterval( 'P0Y' );
}
$interval = $value->getTimeOffsetInterval();
$this->timestamp->add( $interval );
return $interval;
}
/**
* Generate a purely relative timestamp, i.e., represent the time elapsed between
* the given base timestamp and this object.
*
* @param MWTimestamp|null $relativeTo Relative base timestamp (defaults to now)
* @param UserIdentity|null $user Use to use offset for
* @param Language|null $lang Language to use
* @param array $chosenIntervals Intervals to use to represent it
* @return string Relative timestamp
*/
public function getRelativeTimestamp(
?MWTimestamp $relativeTo = null,
?UserIdentity $user = null,
?Language $lang = null,
array $chosenIntervals = []
) {
$relativeTo ??= new self();
$user ??= RequestContext::getMain()->getUser();
$lang ??= RequestContext::getMain()->getLanguage();
$ts = '';
$diff = $this->diff( $relativeTo );
$user = User::newFromIdentity( $user ); // For compatibility with the hook signature
if ( ( new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ) )->onGetRelativeTimestamp(
$ts,
$diff,
$this,
$relativeTo,
$user,
$lang
) ) {
$seconds = ( ( ( $diff->days * 24 + $diff->h ) * 60 + $diff->i ) * 60 + $diff->s );
$ts = wfMessage( 'ago', $lang->formatDuration( $seconds, $chosenIntervals ) )->inLanguage( $lang )->text();
}
return $ts;
}
/**
* Get the localized timezone message, if available.
*
* Premade translations are not shipped as format() may return whatever the
* system uses, localized or not, so translation must be done through wiki.
*
* @since 1.27
* @return Message The localized timezone message
*/
public function getTimezoneMessage() {
$tzMsg = $this->format( 'T' ); // might vary on DST changeover!
$key = 'timezone-' . strtolower( trim( $tzMsg ) );
$msg = wfMessage( $key );
if ( $msg->exists() ) {
return $msg;
}
return new RawMessage( $tzMsg );
}
/**
* Get a timestamp instance in the server local timezone ($wgLocaltimezone)
*
* @since 1.22
* @param bool|string $ts Timestamp to set, or false for current time
* @return MWTimestamp The local instance
*/
public static function getLocalInstance( $ts = false ) {
$localtimezone = MediaWikiServices::getInstance()->getMainConfig()->get( MainConfigNames::Localtimezone );
$timestamp = new self( $ts );
$timestamp->setTimezone( $localtimezone );
return $timestamp;
}
}
/** @deprecated class alias since 1.41 */
class_alias( MWTimestamp::class, 'MWTimestamp' );
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