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AvifExtensionChecker.php (2.76 KB)

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Edit: AvifExtensionChecker.php

<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

declare(strict_types=1);

namespace PrestaShop\PrestaShop\Core\Image;

use PrestaShop\PrestaShop\Core\Image\Exception\AvifUnavailableException;

/**
 * Class AvifExtensionChecker provides object-oriented way to check if AVIF extension is installed and available.
 */
class AvifExtensionChecker
{
    private $isAvailable;

public function isAvailable(): bool
    {
        if (!is_null($this->isAvailable)) {
            return $this->isAvailable;
        }

$this->isAvailable = extension_loaded('gd') && /* @phpstan-ignore-line */
            version_compare(PHP_VERSION, '8.1') >= 0 &&
            function_exists('imageavif') &&
            is_callable('imageavif'); /* @phpstan-ignore-line */

// set_error_handler() is used to catch the warning generated by the imageavif() function
        // @see https://stackoverflow.com/questions/71739530/php-8-1-imageavif-avif-image-support-has-been-disabled
        if (function_exists('imageavif')) {
            set_error_handler(
                function ($severity, $message) { /* @phpstan-ignore-line */
                    if (str_contains($message, 'imageavif(): AVIF image support has been disabled')) {
                        throw new AvifUnavailableException($message);
                    }
                },
                E_WARNING
            );

try {
                $image = imagecreatetruecolor(250, 250);
                imageavif($image, 'test-avif-support.avif');
            } catch (AvifUnavailableException $e) {
                $this->isAvailable = false;
            } finally {
                @unlink('test-avif-support.avif');
            }

restore_error_handler();
        }

return $this->isAvailable;
    }
}