Files

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1.9 KiB
PHP

<?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;
/**
* Evaluates a Content-Security-Policy HTTP header.
*
* @internal should only be used from within TYPO3 Core
*/
class ContentSecurityPolicyDirective
{
protected const RULE_PATTERN = '#(?:\'(?<instruction>[^\']+)\')|(?<source>[^\s]+)#';
/**
* @var string
*/
protected $name;
/**
* @var string[]
*/
protected $instructions = [];
/**
* @var string[]
*/
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;
}
/**
* @return string[]
*/
public function getInstructions(): array
{
return $this->instructions;
}
/**
* @return string[]
*/
public function getSources(): array
{
return $this->sources;
}
public function hasInstructions(string ...$instructions): bool
{
return array_intersect($this->instructions, $instructions) !== [];
}
}