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<?php
/**
* 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
* @author Niklas Laxström
*/
namespace MediaWiki\Cache;
use MediaWiki\Context\RequestContext;
use MediaWiki\Linker\LinkTarget;
use MediaWiki\Title\NamespaceInfo;
use MediaWiki\User\Options\UserOptionsLookup;
use MediaWiki\User\UserIdentity;
/**
* Look up "gender" user preference.
*
* This primarily used in MediaWiki\Title\TitleFormatter for title formatting
* of pages in gendered namespace aliases, and in CoreParserFunctions for the
* `{{gender:}}` parser function.
*
* @since 1.18
* @ingroup Cache
*/
class GenderCache {
/** @var string[] */
protected $cache = [];
/** @var string|null */
protected $default = null;
/** @var int */
protected $misses = 0;
/**
* @internal Exposed for MediaWiki core unit tests.
* @var int
*/
protected $missLimit = 1000;
private NamespaceInfo $nsInfo;
private UserOptionsLookup $userOptionsLookup;
public function __construct(
NamespaceInfo $nsInfo,
UserOptionsLookup $userOptionsLookup
) {
$this->nsInfo = $nsInfo;
$this->userOptionsLookup = $userOptionsLookup;
}
/**
* Get the default gender option on this wiki.
*
* @return string
*/
protected function getDefault() {
$this->default ??= $this->userOptionsLookup->getDefaultOption( 'gender' );
return $this->default;
}
/**
* Get the gender option for given username.
*
* @param string|UserIdentity $username
* @param string|null $caller Calling method for database profiling
* @return string
*/
public function getGenderOf( $username, $caller = '' ) {
if ( $username instanceof UserIdentity ) {
$username = $username->getName();
}
$username = self::normalizeUsername( $username );
if ( !isset( $this->cache[$username] ) ) {
if ( $this->misses < $this->missLimit ||
RequestContext::getMain()->getUser()->getName() === $username
) {
$this->misses++;
$this->doQuery( $username, $caller );
}
if ( $this->misses === $this->missLimit ) {
// Log only once and don't bother incrementing beyond limit+1
$this->misses++;
wfDebug( __METHOD__ . ': too many misses, returning default onwards' );
}
}
return $this->cache[$username] ?? $this->getDefault();
}
/**
* Wrapper for doQuery that processes raw LinkBatch data.
*
* @param array<int,array<string,mixed>> $data
* @param string|null $caller
*/
public function doLinkBatch( array $data, $caller = '' ) {
$users = [];
foreach ( $data as $ns => $pagenames ) {
if ( $this->nsInfo->hasGenderDistinction( $ns ) ) {
$users += $pagenames;
}
}
$this->doQuery( array_keys( $users ), $caller );
}
/**
* Wrapper for doQuery that processes a title array.
*
* @since 1.20
* @param LinkTarget[] $titles
* @param string|null $caller Calling method for database profiling
*/
public function doTitlesArray( $titles, $caller = '' ) {
$users = [];
foreach ( $titles as $titleObj ) {
if ( $this->nsInfo->hasGenderDistinction( $titleObj->getNamespace() ) ) {
$users[] = $titleObj->getText();
}
}
$this->doQuery( $users, $caller );
}
/**
* Preload gender option for multiple user names.
*
* @param string[]|string $users Usernames
* @param string|null $caller Calling method for database profiling
*/
public function doQuery( $users, $caller = '' ) {
$usersToFetch = [];
foreach ( (array)$users as $userName ) {
$userName = self::normalizeUsername( $userName );
if ( !isset( $this->cache[$userName] ) ) {
$usersToFetch[] = $userName;
}
}
if ( !$usersToFetch ) {
return;
}
$genders = $this->userOptionsLookup->getOptionBatchForUserNames( $usersToFetch, 'gender' );
foreach ( $genders as $userName => $gender ) {
$this->cache[$userName] = $gender;
}
}
private static function normalizeUsername( string $username ): string {
// Strip off subpages
$indexSlash = strpos( $username, '/' );
if ( $indexSlash !== false ) {
$username = substr( $username, 0, $indexSlash );
}
// normalize underscore/spaces
return strtr( $username, '_', ' ' );
}
}
/** @deprecated class alias since 1.42 */
class_alias( GenderCache::class, 'GenderCache' );