ImagePreviewTask.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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\Processing;
 
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\MathUtility;
 
class ‪ImagePreviewTask extends ‪AbstractTask
{
    protected string|null ‪$targetFileExtension;
 
    public function ‪getType(): string
    {
        return 'Image';
    }
 
    public function ‪getName(): string
    {
        return 'Preview';
    }
 
    public function ‪getTargetFilename(): string
    {
        return 'preview_'
            . $this->‪getSourceFile()->getNameWithoutExtension()
            . '_' . $this->‪getConfigurationChecksum()
            . '.' . $this->‪getTargetFileExtension();
    }
 
    public function ‪getTargetFileExtension(): string
    {
        if (!isset($this->targetFileExtension)) {
            $this->targetFileExtension = $this->‪determineTargetFileExtension();
        }
        return ‪$this->targetFileExtension;
    }
 
    protected function ‪determineTargetFileExtension(): string
    {
        if (!empty($this->configuration['fileExtension'])) {
            ‪$targetFileExtension = $this->configuration['fileExtension'];
        } elseif (in_array($this->‪getSourceFile()->getExtension(), ['jpg', 'jpeg', 'png', 'gif', 'svg'], true)) {
            ‪$targetFileExtension = $this->‪getSourceFile()->getExtension();
        } elseif ($this->‪getSourceFile()->getExtension() === 'webp' && ‪GeneralUtility::inList(‪$GLOBALS['TYPO3_CONF_VARS']['GFX']['imagefile_ext'] ?? '', 'webp')) {
            ‪$targetFileExtension = $this->‪getSourceFile()->getExtension();
        } else {
            // Thumbnails from non-processable files will be converted to 'png'
            ‪$targetFileExtension = 'png';
        }
        return ‪$targetFileExtension;
    }
 
    public function ‪sanitizeConfiguration(): void
    {
        $configuration = array_replace(
            [
                'width' => 64,
                'height' => 64,
            ],
            $this->configuration
        );
        $configuration['width'] = ‪MathUtility::forceIntegerInRange($configuration['width'], 1, 1000);
        $configuration['height'] = ‪MathUtility::forceIntegerInRange($configuration['height'], 1, 1000);
 
        $this->configuration = array_filter(
            $configuration,
            static function (string|int|bool|array|null $value, string $name): bool {
                return !empty($value) && in_array($name, ['width', 'height'], true);
            },
            ARRAY_FILTER_USE_BOTH
        );
        parent::sanitizeConfiguration();
    }
}