ContentSecurityPolicyDirective.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\Install\SystemEnvironment\ServerResponse;
 
class ‪ContentSecurityPolicyDirective
{
    protected const ‪RULE_PATTERN = '#(?:\'(?<instruction>[^\']+)\')|(?<source>[^\s]+)#';
 
    protected ‪$name;
 
    protected ‪$instructions = [];
 
    protected ‪$sources = [];
 
    public function ‪__construct(string ‪$name, string $rule)
    {
        $this->name = ‪$name;
        if (preg_match_all(self::RULE_PATTERN, $rule, $matches)) {
            foreach (array_keys($matches[0]) as $index) {
                if ($matches['instruction'][$index] !== '') {
                    $this->instructions[] = $matches['instruction'][$index];
                } elseif ($matches['source'][$index] !== '') {
                    $this->sources[] = $matches['source'][$index];
                }
            }
        }
    }
 
    public function ‪getName(): string
    {
        return ‪$this->name;
    }
 
    public function ‪getInstructions(): array
    {
        return ‪$this->instructions;
    }
 
    public function ‪getSources(): array
    {
        return ‪$this->sources;
    }
 
    public function ‪hasInstructions(string ...‪$instructions): bool
    {
        return array_intersect($this->instructions, ‪$instructions) !== [];
    }
}