101 lines
2.7 KiB
PHP
101 lines
2.7 KiB
PHP
<?php
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declare(strict_types=1);
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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namespace TYPO3\CMS\Core\Security\ContentSecurityPolicy;
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use TYPO3\CMS\Core\Type\Map;
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use TYPO3\CMS\Core\Utility\StringUtility;
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final class ConsumableNonce implements \Countable, \Stringable
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{
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private const int MIN_BYTES = 40;
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/**
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* @internal use the more specific methods `consumeInline()` or `consumeStatic()` instead
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*/
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public readonly string $value;
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/**
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* @var Map<mixed, int>
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*/
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private Map $inlineCount;
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/**
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* @var Map<mixed, int>
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*/
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private Map $staticCount;
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public function __construct(?string $value = null)
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{
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if ($value === null || strlen($value) < self::MIN_BYTES) {
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$value = random_bytes(self::MIN_BYTES);
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$value = StringUtility::base64urlEncode($value);
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}
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$this->value = $value;
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$this->inlineCount = new Map();
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$this->staticCount = new Map();
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}
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public function __toString(): string
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{
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return $this->consumeInline();
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}
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public function count(): int
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{
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return $this->countInline() + $this->countStatic();
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}
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public function countInline(mixed $aspect = null): int
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{
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if ($aspect === null) {
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return array_sum($this->inlineCount->values());
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}
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return $this->inlineCount[$aspect] ?? 0;
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}
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public function countStatic(mixed $aspect = null): int
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{
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if ($aspect === null) {
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return array_sum($this->staticCount->values());
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}
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return $this->staticCount[$aspect] ?? 0;
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}
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/**
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* @internal consider using the more specific methods `consumeInline()` or `consumeStatic()` instead
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*/
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public function consume(): string
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{
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return $this->consumeInline();
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}
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public function consumeInline(mixed $aspect = 'default'): string
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{
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// `\TYPO3\CMS\Core\Type\Map::offsetGet would` have to be `&offsetGet` for increments to work
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$this->inlineCount[$aspect] = ($this->inlineCount[$aspect] ?? 0) + 1;
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return $this->value;
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}
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public function consumeStatic(mixed $aspect = 'default'): string
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{
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// `\TYPO3\CMS\Core\Type\Map::offsetGet would` have to be `&offsetGet` for increments to work
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$this->staticCount[$aspect] = ($this->staticCount[$aspect] ?? 0) + 1;
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return $this->value;
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}
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}
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