OnlineMediaHelperRegistry.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Resource\OnlineMedia\Helpers;
 
use ‪TYPO3\CMS\Core\Resource\File;
use ‪TYPO3\CMS\Core\Resource\Folder;
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪OnlineMediaHelperRegistry implements ‪SingletonInterface
{
    public function ‪hasOnlineMediaHelper(string $fileExtension): bool
    {
        return isset(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['onlineMediaHelpers'][$fileExtension]);
    }
 
    public function ‪getOnlineMediaHelper(‪File $file)
    {
        $registeredHelpers = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['onlineMediaHelpers'];
        if (isset($registeredHelpers[$file->‪getExtension()])) {
            return GeneralUtility::makeInstance($registeredHelpers[$file->‪getExtension()], $file->‪getExtension());
        }
        return false;
    }
 
    public function ‪transformUrlToFile(‪$url, ‪Folder $targetFolder, $allowedExtensions = [])
    {
        $registeredHelpers = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['onlineMediaHelpers'];
        foreach ($registeredHelpers as $extension => $className) {
            if (!empty($allowedExtensions) && !in_array($extension, $allowedExtensions, true)) {
                continue;
            }
            $helper = GeneralUtility::makeInstance($className, $extension);
            $file = $helper->transformUrlToFile(‪$url, $targetFolder);
            if ($file !== null) {
                return $file;
            }
        }
        return null;
    }
 
    public function ‪getSupportedFileExtensions()
    {
        return array_keys(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['fal']['onlineMediaHelpers']);
    }
}