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<?php |
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declare(strict_types=1); |
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namespace TYPO3\PharStreamWrapper\Interceptor; |
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/* |
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* This file is part of the TYPO3 project. |
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* |
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* It is free software; you can redistribute it and/or modify it under the terms |
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* of the MIT License (MIT). For the full copyright and license information, |
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* please read the LICENSE 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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use TYPO3\PharStreamWrapper\Assertable; |
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use TYPO3\PharStreamWrapper\Helper; |
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use TYPO3\PharStreamWrapper\Exception; |
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use TYPO3\PharStreamWrapper\Phar\DeserializationException; |
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use TYPO3\PharStreamWrapper\Phar\Reader; |
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/** |
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* @internal Experimental implementation of checking against serialized objects in Phar meta-data |
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* @internal This functionality has not been 100% pentested... |
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*/ |
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class PharMetaDataInterceptor implements Assertable |
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{ |
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/** |
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* Determines whether the according Phar archive contains |
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* (potential insecure) serialized objects. |
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* |
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* @param string $path |
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* @param string $command |
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* @return bool |
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* @throws Exception |
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*/ |
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public function assert(string $path, string $command): bool |
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{ |
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if ($this->baseFileDoesNotHaveMetaDataIssues($path)) { |
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return true; |
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} |
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throw new Exception( |
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sprintf( |
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'Problematic meta-data in "%s"', |
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$path |
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), |
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1539632368 |
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); |
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} |
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/** |
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* @param string $path |
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* @return bool |
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*/ |
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private function baseFileDoesNotHaveMetaDataIssues(string $path): bool |
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{ |
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$baseFile = Helper::determineBaseFile($path); |
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if ($baseFile === null) { |
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return false; |
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} |
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try { |
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$reader = new Reader($baseFile); |
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$reader->resolveContainer()->getManifest()->deserializeMetaData(); |
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} catch (DeserializationException $exception) { |
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return false; |
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} |
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return true; |
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} |
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} |
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TYPO3 /
phar-stream-wrapper
