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<?php |
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/** |
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* Foreign file accessible through api.php requests. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with this program; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* http://www.gnu.org/copyleft/gpl.html |
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* |
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* @file |
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* @ingroup FileAbstraction |
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*/ |
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/** |
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* Foreign file accessible through api.php requests. |
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* Very hacky and inefficient, do not use :D |
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* |
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* @ingroup FileAbstraction |
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*/ |
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class ForeignAPIFile extends File { |
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/** @var bool */ |
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private $mExists; |
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/** @var array */ |
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private $mInfo = []; |
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protected $repoClass = 'ForeignApiRepo'; |
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/** |
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* @param Title|string|bool $title |
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* @param ForeignApiRepo $repo |
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* @param array $info |
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* @param bool $exists |
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*/ |
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function __construct( $title, $repo, $info, $exists = false ) { |
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parent::__construct( $title, $repo ); |
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$this->mInfo = $info; |
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$this->mExists = $exists; |
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$this->assertRepoDefined(); |
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} |
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/** |
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* @param Title $title |
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* @param ForeignApiRepo $repo |
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* @return ForeignAPIFile|null |
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*/ |
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static function newFromTitle( Title $title, $repo ) { |
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$data = $repo->fetchImageQuery( [ |
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'titles' => 'File:' . $title->getDBkey(), |
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'iiprop' => self::getProps(), |
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'prop' => 'imageinfo', |
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'iimetadataversion' => MediaHandler::getMetadataVersion(), |
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// extmetadata is language-dependant, accessing the current language here |
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// would be problematic, so we just get them all |
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'iiextmetadatamultilang' => 1, |
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] ); |
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$info = $repo->getImageInfo( $data ); |
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if ( $info ) { |
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$lastRedirect = isset( $data['query']['redirects'] ) |
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? count( $data['query']['redirects'] ) - 1 |
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: -1; |
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if ( $lastRedirect >= 0 ) { |
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$newtitle = Title::newFromText( $data['query']['redirects'][$lastRedirect]['to'] ); |
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$img = new self( $newtitle, $repo, $info, true ); |
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if ( $img ) { |
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$img->redirectedFrom( $title->getDBkey() ); |
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} |
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} else { |
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$img = new self( $title, $repo, $info, true ); |
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} |
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return $img; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* Get the property string for iiprop and aiprop |
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* @return string |
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*/ |
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static function getProps() { |
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return 'timestamp|user|comment|url|size|sha1|metadata|mime|mediatype|extmetadata'; |
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} |
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// Dummy functions... |
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/** |
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* @return bool |
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*/ |
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public function exists() { |
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return $this->mExists; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getPath() { |
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return false; |
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} |
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/** |
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* @param array $params |
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* @param int $flags |
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* @return bool|MediaTransformOutput |
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*/ |
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function transform( $params, $flags = 0 ) { |
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if ( !$this->canRender() ) { |
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// show icon |
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return parent::transform( $params, $flags ); |
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} |
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// Note, the this->canRender() check above implies |
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// that we have a handler, and it can do makeParamString. |
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$otherParams = $this->handler->makeParamString( $params ); |
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$width = isset( $params['width'] ) ? $params['width'] : -1; |
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$height = isset( $params['height'] ) ? $params['height'] : -1; |
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$thumbUrl = $this->repo->getThumbUrlFromCache( |
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$this->getName(), |
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$width, |
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$height, |
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$otherParams |
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); |
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if ( $thumbUrl === false ) { |
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global $wgLang; |
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return $this->repo->getThumbError( |
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$this->getName(), |
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$width, |
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$height, |
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$otherParams, |
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$wgLang->getCode() |
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); |
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} |
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return $this->handler->getTransform( $this, 'bogus', $thumbUrl, $params ); |
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} |
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// Info we can get from API... |
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/** |
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* @param int $page |
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* @return int|number |
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*/ |
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public function getWidth( $page = 1 ) { |
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return isset( $this->mInfo['width'] ) ? intval( $this->mInfo['width'] ) : 0; |
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} |
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/** |
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* @param int $page |
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* @return int |
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*/ |
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public function getHeight( $page = 1 ) { |
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return isset( $this->mInfo['height'] ) ? intval( $this->mInfo['height'] ) : 0; |
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} |
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/** |
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* @return bool|null|string |
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*/ |
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public function getMetadata() { |
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if ( isset( $this->mInfo['metadata'] ) ) { |
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return serialize( self::parseMetadata( $this->mInfo['metadata'] ) ); |
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} |
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return null; |
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} |
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/** |
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* @return array|null Extended metadata (see imageinfo API for format) or |
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* null on error |
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*/ |
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public function getExtendedMetadata() { |
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if ( isset( $this->mInfo['extmetadata'] ) ) { |
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return $this->mInfo['extmetadata']; |
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} |
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return null; |
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} |
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/** |
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* @param array $metadata |
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* @return array |
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*/ |
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public static function parseMetadata( $metadata ) { |
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if ( !is_array( $metadata ) ) { |
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return $metadata; |
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} |
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$ret = []; |
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foreach ( $metadata as $meta ) { |
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$ret[$meta['name']] = self::parseMetadata( $meta['value'] ); |
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} |
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return $ret; |
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} |
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/** |
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* @return bool|int|null |
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*/ |
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public function getSize() { |
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return isset( $this->mInfo['size'] ) ? intval( $this->mInfo['size'] ) : null; |
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} |
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/** |
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* @return null|string |
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*/ |
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public function getUrl() { |
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return isset( $this->mInfo['url'] ) ? strval( $this->mInfo['url'] ) : null; |
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} |
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/** |
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* Get short description URL for a file based on the foreign API response, |
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* or if unavailable, the short URL is constructed from the foreign page ID. |
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* |
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* @return null|string |
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* @since 1.27 |
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*/ |
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public function getDescriptionShortUrl() { |
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if ( isset( $this->mInfo['descriptionshorturl'] ) ) { |
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return $this->mInfo['descriptionshorturl']; |
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} elseif ( isset( $this->mInfo['pageid'] ) ) { |
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$url = $this->repo->makeUrl( [ 'curid' => $this->mInfo['pageid'] ] ); |
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if ( $url !== false ) { |
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return $url; |
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} |
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} |
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return null; |
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} |
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/** |
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* @param string $type |
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* @return int|null|string |
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*/ |
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public function getUser( $type = 'text' ) { |
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if ( $type == 'text' ) { |
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return isset( $this->mInfo['user'] ) ? strval( $this->mInfo['user'] ) : null; |
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} else { |
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return 0; // What makes sense here, for a remote user? |
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} |
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} |
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/** |
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* @param int $audience |
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* @param User $user |
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* @return null|string |
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*/ |
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public function getDescription( $audience = self::FOR_PUBLIC, User $user = null ) { |
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return isset( $this->mInfo['comment'] ) ? strval( $this->mInfo['comment'] ) : null; |
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} |
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/** |
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* @return null|string |
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*/ |
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function getSha1() { |
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return isset( $this->mInfo['sha1'] ) |
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? Wikimedia\base_convert( strval( $this->mInfo['sha1'] ), 16, 36, 31 ) |
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: null; |
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} |
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/** |
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* @return bool|string |
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*/ |
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function getTimestamp() { |
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return wfTimestamp( TS_MW, |
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isset( $this->mInfo['timestamp'] ) |
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? strval( $this->mInfo['timestamp'] ) |
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: null |
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); |
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} |
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/** |
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* @return string |
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*/ |
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View Code Duplication |
function getMimeType() { |
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if ( !isset( $this->mInfo['mime'] ) ) { |
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$magic = MimeMagic::singleton(); |
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$this->mInfo['mime'] = $magic->guessTypesForExtension( $this->getExtension() ); |
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} |
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return $this->mInfo['mime']; |
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} |
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/** |
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* @return int|string |
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*/ |
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View Code Duplication |
function getMediaType() { |
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if ( isset( $this->mInfo['mediatype'] ) ) { |
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return $this->mInfo['mediatype']; |
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} |
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$magic = MimeMagic::singleton(); |
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return $magic->getMediaType( null, $this->getMimeType() ); |
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} |
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/** |
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* @return bool|string |
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*/ |
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function getDescriptionUrl() { |
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return isset( $this->mInfo['descriptionurl'] ) |
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? $this->mInfo['descriptionurl'] |
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: false; |
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} |
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/** |
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* Only useful if we're locally caching thumbs anyway... |
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* @param string $suffix |
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* @return null|string |
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*/ |
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function getThumbPath( $suffix = '' ) { |
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if ( $this->repo->canCacheThumbs() ) { |
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$path = $this->repo->getZonePath( 'thumb' ) . '/' . $this->getHashPath( $this->getName() ); |
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if ( $suffix ) { |
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$path = $path . $suffix . '/'; |
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} |
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return $path; |
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} else { |
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return null; |
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} |
|
333
|
|
|
} |
|
334
|
|
|
|
|
335
|
|
|
/** |
|
336
|
|
|
* @return array |
|
337
|
|
|
*/ |
|
338
|
|
|
function getThumbnails() { |
|
339
|
|
|
$dir = $this->getThumbPath( $this->getName() ); |
|
340
|
|
|
$iter = $this->repo->getBackend()->getFileList( [ 'dir' => $dir ] ); |
|
341
|
|
|
|
|
342
|
|
|
$files = []; |
|
343
|
|
|
foreach ( $iter as $file ) { |
|
344
|
|
|
$files[] = $file; |
|
345
|
|
|
} |
|
346
|
|
|
|
|
347
|
|
|
return $files; |
|
348
|
|
|
} |
|
349
|
|
|
|
|
350
|
|
|
function purgeCache( $options = [] ) { |
|
351
|
|
|
$this->purgeThumbnails( $options ); |
|
352
|
|
|
$this->purgeDescriptionPage(); |
|
353
|
|
|
} |
|
354
|
|
|
|
|
355
|
|
|
function purgeDescriptionPage() { |
|
356
|
|
|
global $wgContLang; |
|
357
|
|
|
|
|
358
|
|
|
$url = $this->repo->getDescriptionRenderUrl( $this->getName(), $wgContLang->getCode() ); |
|
359
|
|
|
$key = $this->repo->getLocalCacheKey( 'RemoteFileDescription', 'url', md5( $url ) ); |
|
360
|
|
|
|
|
361
|
|
|
ObjectCache::getMainWANInstance()->delete( $key ); |
|
362
|
|
|
} |
|
363
|
|
|
|
|
364
|
|
|
/** |
|
365
|
|
|
* @param array $options |
|
366
|
|
|
*/ |
|
367
|
|
|
function purgeThumbnails( $options = [] ) { |
|
368
|
|
|
$key = $this->repo->getLocalCacheKey( 'ForeignAPIRepo', 'ThumbUrl', $this->getName() ); |
|
369
|
|
|
ObjectCache::getMainWANInstance()->delete( $key ); |
|
370
|
|
|
|
|
371
|
|
|
$files = $this->getThumbnails(); |
|
372
|
|
|
// Give media handler a chance to filter the purge list |
|
373
|
|
|
$handler = $this->getHandler(); |
|
374
|
|
|
if ( $handler ) { |
|
375
|
|
|
$handler->filterThumbnailPurgeList( $files, $options ); |
|
376
|
|
|
} |
|
377
|
|
|
|
|
378
|
|
|
$dir = $this->getThumbPath( $this->getName() ); |
|
379
|
|
|
$purgeList = []; |
|
380
|
|
|
foreach ( $files as $file ) { |
|
381
|
|
|
$purgeList[] = "{$dir}{$file}"; |
|
382
|
|
|
} |
|
383
|
|
|
|
|
384
|
|
|
# Delete the thumbnails |
|
385
|
|
|
$this->repo->quickPurgeBatch( $purgeList ); |
|
386
|
|
|
# Clear out the thumbnail directory if empty |
|
387
|
|
|
$this->repo->quickCleanDir( $dir ); |
|
388
|
|
|
} |
|
389
|
|
|
|
|
390
|
|
|
/** |
|
391
|
|
|
* The thumbnail is created on the foreign server and fetched over internet |
|
392
|
|
|
* @since 1.25 |
|
393
|
|
|
* @return bool |
|
394
|
|
|
*/ |
|
395
|
|
|
public function isTransformedLocally() { |
|
396
|
|
|
return false; |
|
397
|
|
|
} |
|
398
|
|
|
} |
|
399
|
|
|
|
Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: