74 lines
2.4 KiB
PHP
74 lines
2.4 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\Serializer;
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use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
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use TYPO3\CMS\Core\Crypto\HashAlgo;
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use TYPO3\CMS\Core\Crypto\HashService;
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use TYPO3\CMS\Core\Exception\Crypto\InvalidHashStringException;
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use TYPO3\CMS\Core\Serializer\Exception\DeserializerException;
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/**
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* @internal Only to be used by TYPO3 core
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*/
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#[Autoconfigure(public: true)]
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final readonly class AuthenticatedMessageDeserializer
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{
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private const HASH_ALGO = HashAlgo::SHA3_384;
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public function __construct(
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private HashService $hashService,
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private DeserializationService $deserializationService,
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) {}
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public function serialize(mixed $payload, string $additionalSecret): string
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{
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return $this->hashService->appendHmac(
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serialize($payload),
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$additionalSecret,
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self::HASH_ALGO
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);
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}
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public function deserialize(string $payload, string $additionalSecret): mixed
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{
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try {
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$serialized = $this->hashService->validateAndStripHmac(
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$payload,
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$additionalSecret,
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self::HASH_ALGO
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);
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} catch (InvalidHashStringException $e) {
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$classNames = $this->deserializationService->parseClassNames($payload);
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// in case the payload does not contain any class names, continue with
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// a secure deserialization attempt, not allowing any class names
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if ($classNames === []) {
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return @unserialize($payload, ['allowed_classes' => false]);
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}
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throw new DeserializerException(
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'Authenticated Message Deserialization failed',
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1780317744,
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$e
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);
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}
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// explicitly allowing all classes here after successful HMAC validation
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/* @phpstan-ignore unserialize.allowedClasses.insecure (Integrity check already happens via HMAC validation) */
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return unserialize($serialized, ['allowed_classes' => true]);
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}
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}
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