94 lines
3.2 KiB
PHP
94 lines
3.2 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\Package\Cache;
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use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
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use TYPO3\CMS\Core\Information\Typo3Version;
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use TYPO3\CMS\Core\Package\Exception\PackageManagerCacheUnavailableException;
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/**
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* TYPO3 Package cache for package states file.
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* This replicates previous behaviour around the availability
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* of a PackageStates.php file and has been extracted from PackageManager
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*
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* @internal
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*/
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class PackageStatesPackageCache implements PackageCacheInterface
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{
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private const string CACHE_IDENTIFIER_PREFIX = 'PackageManager_';
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private ?string $cacheIdentifier;
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private string $packageStatesFile;
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private FrontendInterface $coreCache;
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public function __construct(string $packageStatesFile, FrontendInterface $coreCache)
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{
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$this->packageStatesFile = $packageStatesFile;
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$this->coreCache = $coreCache;
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}
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public function fetch(): PackageCacheEntry
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{
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$packageData = $this->coreCache->require(self::CACHE_IDENTIFIER_PREFIX . $this->getIdentifier());
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if ($packageData === false || !is_array($packageData)) {
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throw new PackageManagerCacheUnavailableException('The package state cache could not be loaded.', 1714031925);
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}
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return PackageCacheEntry::fromCache($packageData ?: []);
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}
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public function store(PackageCacheEntry $cacheEntry): void
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{
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$cacheIdentifier = $this->getIdentifier();
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$this->coreCache->set(
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self::CACHE_IDENTIFIER_PREFIX . $cacheIdentifier,
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'return ' . PHP_EOL . $cacheEntry->withIdentifier($cacheIdentifier)->serialize() . ';'
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);
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}
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public function invalidate(): void
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{
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if (!isset($this->cacheIdentifier)) {
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return;
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}
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$this->coreCache->remove($this->cacheIdentifier);
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$this->cacheIdentifier = null;
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clearstatcache();
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}
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/**
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* Combines mtime and filesize to detect PackageStates.php changes.
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* mtime alone has 1-second resolution: a write within the same second
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* produces an identical identifier, causing PackageActivationService
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* to load a stale DI container missing the just-activated extension.
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*
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* @throws PackageManagerCacheUnavailableException
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*/
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public function getIdentifier(): string
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{
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if (!isset($this->cacheIdentifier)) {
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$stat = @stat($this->packageStatesFile);
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if ($stat === false) {
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throw new PackageManagerCacheUnavailableException('The package state cache could not be loaded.', 1629817141);
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}
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$this->cacheIdentifier = md5((string)(new Typo3Version()) . $this->packageStatesFile . $stat['mtime'] . $stat['size']);
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}
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return $this->cacheIdentifier;
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}
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}
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