diff options
Diffstat (limited to 'includes/page/WikiFilePage.php')
| -rw-r--r-- | includes/page/WikiFilePage.php | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/includes/page/WikiFilePage.php b/includes/page/WikiFilePage.php new file mode 100644 index 00000000..bfcd4c31 --- /dev/null +++ b/includes/page/WikiFilePage.php @@ -0,0 +1,230 @@ +<?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 + */ + +/** + * Special handling for file pages + * + * @ingroup Media + */ +class WikiFilePage extends WikiPage { + /** + * @var File + */ + protected $mFile = false; // !< File object + protected $mRepo = null; // !< + protected $mFileLoaded = false; // !< + 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 = array(); + 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" ); + $update = new HTMLCacheUpdate( $this->mTitle, 'imagelinks' ); + $update->doUpdate(); + $this->mFile->upgradeRow(); + $this->mFile->purgeCache( array( 'forThumbRefresh' => true ) ); + } 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) + $this->mFile->purgeCache( array( '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( array() ) ); + } + + /** @var LocalRepo $repo */ + $repo = $file->getRepo(); + $dbr = $repo->getSlaveDB(); + + $res = $dbr->select( + array( 'page', 'categorylinks' ), + array( + 'page_title' => 'cl_to', + 'page_namespace' => NS_CATEGORY, + ), + array( + 'page_namespace' => $title->getNamespace(), + 'page_title' => $title->getDBkey(), + ), + __METHOD__, + array(), + array( 'categorylinks' => array( 'INNER JOIN', 'page_id = cl_from' ) ) + ); + + return TitleArray::newFromResult( $res ); + } +} |