b1c9ec74fa
A constant is not a variable. The type is hard-coded via the value and can never change. While the extra @var probably doesn't hurt much, it's redundant and error-prone and can't provide any additional information. Change-Id: Iee1f36a1905d9b9c6b26d0684b7848571f0c1733
114 lines
2.9 KiB
PHP
114 lines
2.9 KiB
PHP
<?php
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/**
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* Media-handling base classes and generic functionality.
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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 Media
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*/
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use Psr\Log\LoggerInterface;
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/**
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* Class to construct MediaHandler objects
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*
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* @since 1.28
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*/
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class MediaHandlerFactory {
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/**
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* Default, MediaWiki core media handlers
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*/
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private const CORE_HANDLERS = [
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'image/jpeg' => JpegHandler::class,
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'image/png' => PNGHandler::class,
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'image/gif' => GIFHandler::class,
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'image/tiff' => TiffHandler::class,
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'image/webp' => WebPHandler::class,
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'image/x-ms-bmp' => BmpHandler::class,
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'image/x-bmp' => BmpHandler::class,
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'image/x-xcf' => XCFHandler::class,
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'image/svg+xml' => SvgHandler::class, // official
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'image/svg' => SvgHandler::class, // compat
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'image/vnd.djvu' => DjVuHandler::class, // official
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'image/x.djvu' => DjVuHandler::class, // compat
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'image/x-djvu' => DjVuHandler::class, // compat
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'image/jp2' => Jpeg2000Handler::class,
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'image/jpx' => Jpeg2000Handler::class,
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];
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/** @var LoggerInterface */
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private $logger;
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/** @var array */
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private $registry;
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/**
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* Instance cache of MediaHandler objects by mimetype
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*
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* @var MediaHandler[]
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*/
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private $handlers;
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/**
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* @param LoggerInterface $logger
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* @param array $registry
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*/
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public function __construct(
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LoggerInterface $logger,
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array $registry
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) {
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$this->logger = $logger;
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$this->registry = $registry + self::CORE_HANDLERS;
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}
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protected function getHandlerClass( $type ) {
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return $this->registry[$type] ?? false;
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}
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/**
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* @param string $type mimetype
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* @return MediaHandler|false
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*/
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public function getHandler( $type ) {
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if ( isset( $this->handlers[$type] ) ) {
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return $this->handlers[$type];
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}
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$class = $this->getHandlerClass( $type );
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if ( $class !== false ) {
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/** @var MediaHandler $handler */
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$handler = new $class;
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if ( !$handler->isEnabled() ) {
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$this->logger->debug(
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'{class} is not enabled.',
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[ 'class' => $class ]
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);
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$handler = false;
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}
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} else {
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$this->logger->debug(
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'no handler found for {type}.',
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[ 'type' => $type ]
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);
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$handler = false;
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}
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$this->handlers[$type] = $handler;
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return $handler;
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}
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}
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