Your IP : 216.73.216.220
<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Package\Cache;
use TYPO3\CMS\Core\Cache\Frontend\FrontendInterface;
use TYPO3\CMS\Core\Information\Typo3Version;
use TYPO3\CMS\Core\Package\Exception\PackageManagerCacheUnavailableException;
/**
* TYPO3 Package cache for package states file.
* This replicates previous behaviour around the availability
* of a PackageStates.php file and has been extracted from PackageManager
*
* @internal
*/
class PackageStatesPackageCache implements PackageCacheInterface
{
private const CACHE_IDENTIFIER_PREFIX = 'PackageManager_';
private ?string $cacheIdentifier;
private string $packageStatesFile;
private FrontendInterface $coreCache;
public function __construct(string $packageStatesFile, FrontendInterface $coreCache)
{
$this->packageStatesFile = $packageStatesFile;
$this->coreCache = $coreCache;
}
public function fetch(): PackageCacheEntry
{
$packageData = $this->coreCache->require(self::CACHE_IDENTIFIER_PREFIX . $this->getIdentifier());
return PackageCacheEntry::fromCache($packageData ?: []);
}
public function store(PackageCacheEntry $cacheEntry): void
{
$cacheIdentifier = $this->getIdentifier();
$this->coreCache->set(
self::CACHE_IDENTIFIER_PREFIX . $cacheIdentifier,
'return ' . PHP_EOL . $cacheEntry->withIdentifier($cacheIdentifier)->serialize() . ';'
);
}
public function invalidate(): void
{
if (!isset($this->cacheIdentifier)) {
return;
}
$this->coreCache->remove($this->cacheIdentifier);
$this->cacheIdentifier = null;
}
/**
* "Hash" the package states file when cacheIdentifier is null
* This is done to cache the state and to represent invalidated state.
*
* @throws PackageManagerCacheUnavailableException
*/
public function getIdentifier(): string
{
if (!isset($this->cacheIdentifier)) {
$mTime = @filemtime($this->packageStatesFile);
if ($mTime === false) {
throw new PackageManagerCacheUnavailableException('The package state cache could not be loaded.', 1629817141);
}
$this->cacheIdentifier = md5((string)(new Typo3Version()) . $this->packageStatesFile . $mTime);
}
return $this->cacheIdentifier;
}
}