82 lines
3.5 KiB
PHP
82 lines
3.5 KiB
PHP
<?php
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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\Install\Service;
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use TYPO3\CMS\Core\Cache\CacheManager;
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use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
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use TYPO3\CMS\Core\DependencyInjection\Cache\ContainerBackend;
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/**
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* Basic service to clear caches within the install tool.
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* @internal This is NOT an API class, it is for internal use in the install tool only.
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*/
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readonly class ClearCacheService
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{
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public function __construct(
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private LateBootService $lateBootService,
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private FrontendInterface $dependencyInjectionCache
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) {}
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/**
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* This clear cache implementation follows a pretty brutal approach.
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* Goal is to reliably get rid of cache entries, even if some broken
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* extension is loaded that would kill the backend 'clear cache' action.
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*
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* Therefore, this method "knows" implementation details of the cache
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* framework and uses them to clear all file based cache (typo3temp/Cache)
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* and database caches (tables prefixed with cf_) manually.
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*
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* After that ext_localconf of extensions are loaded, those
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* may register additional caches in the caching framework with different
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* backend, and will then clear them with the usual flush() method.
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*/
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public function clearAll(): void
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{
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// Flush all caches defined in TYPO3_CONF_VARS, but not the ones defined by extensions in ext_localconf.php
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$baseCaches = $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'] ?? [];
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// Remove DI container cache (will be renewed in next step)
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if ($this->dependencyInjectionCache->getBackend() instanceof ContainerBackend) {
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/** @var ContainerBackend $diCacheBackend */
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$diCacheBackend = $this->dependencyInjectionCache->getBackend();
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// We need to remove using the forceFlush method because the DI cache backend disables the flush method
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$diCacheBackend->forceFlush();
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}
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// The cache manager is already instantiated in the install tool
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// * (both in the failsafe and the late boot container), but
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// * with settings to disable caching (all caches using NullBackend).
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// Obtain a real instance
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$this->lateBootService->unsetInternalContainerInstance();
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$container = $this->lateBootService->getContainer(true);
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$this->lateBootService->makeCurrent($container);
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$cacheManager = $container->get(CacheManager::class);
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$cacheManager->flushCaches();
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// From this point on, the code may fatal, if some broken extension is loaded.
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$this->lateBootService->loadExtLocalconfDatabase();
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$extensionCaches = $GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations'] ?? [];
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// Loose comparison on purpose to allow changed ordering of the array
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if ($baseCaches != $extensionCaches) {
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// When configuration has changed during loading of extensions (due to ext_localconf.php), flush all caches again
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$cacheManager->setCacheConfigurations($GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);
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$cacheManager->flushCaches();
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}
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}
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}
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