--- /dev/null
+<?php
+/**
+ * Special handling for file pages.
+ *
+ * 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 Wikimedia\Rdbms\FakeResultWrapper;
+
+/**
+ * Special handling for file pages
+ *
+ * @ingroup Media
+ */
+class WikiFilePage extends WikiPage {
+ /** @var File */
+ protected $mFile = false;
+ /** @var LocalRepo */
+ protected $mRepo = null;
+ /** @var bool */
+ protected $mFileLoaded = false;
+ /** @var array */
+ protected $mDupes = null;
+
+ public function __construct( $title ) {
+ parent::__construct( $title );
+ $this->mDupes = null;
+ $this->mRepo = null;
+ }
+
+ /**
+ * @param File $file
+ */
+ public function setFile( $file ) {
+ $this->mFile = $file;
+ $this->mFileLoaded = true;
+ }
+
+ /**
+ * @return bool
+ */
+ protected function loadFile() {
+ if ( $this->mFileLoaded ) {
+ return true;
+ }
+ $this->mFileLoaded = true;
+
+ $this->mFile = wfFindFile( $this->mTitle );
+ if ( !$this->mFile ) {
+ $this->mFile = wfLocalFile( $this->mTitle ); // always a File
+ }
+ $this->mRepo = $this->mFile->getRepo();
+ return true;
+ }
+
+ /**
+ * @return mixed|null|Title
+ */
+ public function getRedirectTarget() {
+ $this->loadFile();
+ if ( $this->mFile->isLocal() ) {
+ return parent::getRedirectTarget();
+ }
+ // Foreign image page
+ $from = $this->mFile->getRedirected();
+ $to = $this->mFile->getName();
+ if ( $from == $to ) {
+ return null;
+ }
+ $this->mRedirectTarget = Title::makeTitle( NS_FILE, $to );
+ return $this->mRedirectTarget;
+ }
+
+ /**
+ * @return bool|mixed|Title
+ */
+ public function followRedirect() {
+ $this->loadFile();
+ if ( $this->mFile->isLocal() ) {
+ return parent::followRedirect();
+ }
+ $from = $this->mFile->getRedirected();
+ $to = $this->mFile->getName();
+ if ( $from == $to ) {
+ return false;
+ }
+ return Title::makeTitle( NS_FILE, $to );
+ }
+
+ /**
+ * @return bool
+ */
+ public function isRedirect() {
+ $this->loadFile();
+ if ( $this->mFile->isLocal() ) {
+ return parent::isRedirect();
+ }
+
+ return (bool)$this->mFile->getRedirected();
+ }
+
+ /**
+ * @return bool
+ */
+ public function isLocal() {
+ $this->loadFile();
+ return $this->mFile->isLocal();
+ }
+
+ /**
+ * @return bool|File
+ */
+ public function getFile() {
+ $this->loadFile();
+ return $this->mFile;
+ }
+
+ /**
+ * @return array|null
+ */
+ public function getDuplicates() {
+ $this->loadFile();
+ if ( !is_null( $this->mDupes ) ) {
+ return $this->mDupes;
+ }
+ $hash = $this->mFile->getSha1();
+ if ( !( $hash ) ) {
+ $this->mDupes = [];
+ return $this->mDupes;
+ }
+ $dupes = RepoGroup::singleton()->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 ) {
+ unset( $dupes[$index] );
+ }
+ if ( $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() . "\n" );
+ DeferredUpdates::addUpdate( new HTMLCacheUpdate( $this->mTitle, 'imagelinks' ) );
+ } else {
+ wfDebug( 'ImagePage::doPurge no image for '
+ . $this->mFile->getName() . "; limiting purge to cache only\n" );
+ }
+
+ // 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 TitleArray|Title[]
+ * @since 1.23
+ */
+ public function getForeignCategories() {
+ $this->loadFile();
+ $title = $this->mTitle;
+ $file = $this->mFile;
+
+ if ( !$file instanceof LocalFile ) {
+ wfDebug( __CLASS__ . '::' . __METHOD__ . " is not supported for this file\n" );
+ return TitleArray::newFromResult( new FakeResultWrapper( [] ) );
+ }
+
+ /** @var LocalRepo $repo */
+ $repo = $file->getRepo();
+ $dbr = $repo->getReplicaDB();
+
+ $res = $dbr->select(
+ [ 'page', 'categorylinks' ],
+ [
+ 'page_title' => 'cl_to',
+ 'page_namespace' => NS_CATEGORY,
+ ],
+ [
+ 'page_namespace' => $title->getNamespace(),
+ 'page_title' => $title->getDBkey(),
+ ],
+ __METHOD__,
+ [],
+ [ 'categorylinks' => [ 'INNER JOIN', 'page_id = cl_from' ] ]
+ );
+
+ return TitleArray::newFromResult( $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();
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff