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WikiFilePage.php
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WikiFilePage.php
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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
*/
use MediaWiki\Actions\FileDeleteAction;
use MediaWiki\MediaWikiServices;
use MediaWiki\Title\Title;
use MediaWiki\Title\TitleArrayFromResult;
use Wikimedia\Rdbms\FakeResultWrapper;
/**
* Special handling for representing file pages.
*
* @ingroup Media
*/
class WikiFilePage extends WikiPage {
/** @var File|false */
protected $mFile = false;
/** @var LocalRepo|null */
protected $mRepo = null;
/** @var bool */
protected $mFileLoaded = false;
/** @var array|null */
protected $mDupes = null;
/**
* @param Title $title
*/
public function __construct( $title ) {
parent::__construct( $title );
$this->mDupes = null;
$this->mRepo = null;
}
/**
* @param File $file
*/
public function setFile( File $file ) {
$this->mFile = $file;
$this->mFileLoaded = true;
}
/**
* @return bool
*/
protected function loadFile() {
$services = MediaWikiServices::getInstance();
if ( $this->mFileLoaded ) {
return true;
}
$this->mFile = $services->getRepoGroup()->findFile( $this->mTitle );
if ( !$this->mFile ) {
$this->mFile = $services->getRepoGroup()->getLocalRepo()
->newFile( $this->mTitle );
}
if ( !$this->mFile instanceof File ) {
throw new RuntimeException( 'Expected to find file. See T250767' );
}
$this->mRepo = $this->mFile->getRepo();
$this->mFileLoaded = true;
return true;
}
/**
* @return bool|Title|string False, Title of in-wiki target, or string with URL
*/
public function followRedirect() {
$this->loadFile();
if ( $this->mFile->isLocal() ) {
return parent::followRedirect();
}
$from = $this->mFile->getRedirected();
$to = $this->mFile->getName();
if ( $from === null || $from === $to ) {
return false;
}
return Title::makeTitle( NS_FILE, $to );
}
/**
* @return bool
*/
public function isRedirect() {
$this->loadFile();
if ( $this->mFile->isLocal() ) {
return parent::isRedirect();
}
return $this->mFile->getRedirected() !== null;
}
/**
* @return bool
*/
public function isLocal() {
$this->loadFile();
return $this->mFile->isLocal();
}
/**
* @return File
*/
public function getFile(): File {
$this->loadFile();
return $this->mFile;
}
/**
* @return File[]|null
*/
public function getDuplicates() {
$this->loadFile();
if ( $this->mDupes !== null ) {
return $this->mDupes;
}
$hash = $this->mFile->getSha1();
if ( !( $hash ) ) {
$this->mDupes = [];
return $this->mDupes;
}
$dupes = MediaWikiServices::getInstance()->getRepoGroup()->findBySha1( $hash );
// Remove duplicates with self and non matching file sizes
$self = $this->mFile->getRepoName() . ':' . $this->mFile->getName();
$size = $this->mFile->getSize();
/**
* @var File $file
*/
foreach ( $dupes as $index => $file ) {
$key = $file->getRepoName() . ':' . $file->getName();
if ( $key === $self || $file->getSize() != $size ) {
unset( $dupes[$index] );
}
}
$this->mDupes = $dupes;
return $this->mDupes;
}
/**
* Override handling of action=purge
* @return bool
*/
public function doPurge() {
$this->loadFile();
if ( $this->mFile->exists() ) {
wfDebug( 'ImagePage::doPurge purging ' . $this->mFile->getName() );
$job = HTMLCacheUpdateJob::newForBacklinks(
$this->mTitle,
'imagelinks',
[ 'causeAction' => 'file-purge' ]
);
MediaWikiServices::getInstance()->getJobQueueGroup()->lazyPush( $job );
} else {
wfDebug( 'ImagePage::doPurge no image for '
. $this->mFile->getName() . "; limiting purge to cache only" );
}
// even if the file supposedly doesn't exist, force any cached information
// to be updated (in case the cached information is wrong)
// Purge current version and its thumbnails
$this->mFile->purgeCache( [ 'forThumbRefresh' => true ] );
// Purge the old versions and their thumbnails
foreach ( $this->mFile->getHistory() as $oldFile ) {
$oldFile->purgeCache( [ 'forThumbRefresh' => true ] );
}
if ( $this->mRepo ) {
// Purge redirect cache
$this->mRepo->invalidateImageRedirect( $this->mTitle );
}
return parent::doPurge();
}
/**
* Get the categories this file is a member of on the wiki where it was uploaded.
* For local files, this is the same as getCategories().
* For foreign API files (InstantCommons), this is not supported currently.
* Results will include hidden categories.
*
* @return TitleArrayFromResult
* @since 1.23
*/
public function getForeignCategories() {
$this->loadFile();
$title = $this->mTitle;
$file = $this->mFile;
$titleFactory = MediaWikiServices::getInstance()->getTitleFactory();
if ( !$file instanceof LocalFile ) {
wfDebug( __METHOD__ . " is not supported for this file" );
return $titleFactory->newTitleArrayFromResult( new FakeResultWrapper( [] ) );
}
/** @var LocalRepo $repo */
$repo = $file->getRepo();
$dbr = $repo->getReplicaDB();
$res = $dbr->newSelectQueryBuilder()
->select( [ 'page_title' => 'cl_to', 'page_namespace' => (string)NS_CATEGORY ] )
->from( 'page' )
->join( 'categorylinks', null, 'page_id = cl_from' )
->where( [ 'page_namespace' => $title->getNamespace(), 'page_title' => $title->getDBkey(), ] )
->caller( __METHOD__ )->fetchResultSet();
return $titleFactory->newTitleArrayFromResult( $res );
}
/**
* @since 1.28
* @return string
*/
public function getWikiDisplayName() {
return $this->getFile()->getRepo()->getDisplayName();
}
/**
* @since 1.28
* @return string
*/
public function getSourceURL() {
return $this->getFile()->getDescriptionUrl();
}
/**
* @inheritDoc
*/
public function getActionOverrides() {
$file = $this->getFile();
if ( $file->exists() && $file->isLocal() && !$file->getRedirected() ) {
// Would be an actual file deletion
return [ 'delete' => FileDeleteAction::class ] + parent::getActionOverrides();
}
// It should use the normal article deletion interface
return parent::getActionOverrides();
}
}

File Metadata

Mime Type
text/x-php
Expires
Aug 19 2026, 23:17 (8 w, 6 d ago)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
c8/26/94fb1d7a731ff49395b793443fef
Default Alt Text
WikiFilePage.php (6 KB)

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