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RedirectCacheService.php
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RedirectCacheService.php
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<?php
declare(strict_types = 1);
namespace TYPO3\CMS\Redirects\Service;
/*
* 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!
*/
use TYPO3\CMS\Core\Cache\CacheManager;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
use TYPO3\CMS\Core\Database\Query\Restriction\HiddenRestriction;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* Ensure to clear the cache entry when a sys_redirect record is modified, also the main pool
* for getting all redirects.
*
* @internal
*/
class RedirectCacheService
{
/**
* @var \TYPO3\CMS\Core\Cache\Frontend\FrontendInterface
*/
protected $cache;
/**
* Constructor setting up the cache
* @param CacheManager|null $cacheManager
* @throws \TYPO3\CMS\Core\Cache\Exception\NoSuchCacheException
*/
public function __construct(CacheManager $cacheManager = null)
{
$cacheManager = $cacheManager ?? GeneralUtility::makeInstance(CacheManager::class);
$this->cache = $cacheManager->getCache('cache_pages');
}
/**
* Fetches all redirects available to the system, grouped by domain and regexp/nonregexp
*
* @return array
*/
public function getRedirects(): array
{
$redirects = $this->cache->get('redirects');
if (!is_array($redirects)) {
$this->rebuild();
$redirects = $this->cache->get('redirects');
}
return $redirects;
}
/**
* Rebuilds the cache for all redirects, grouped by host and by regular expressions.
* Does not include deleted redirects, but includes the ones with dynamic starttime/endtime.
*/
public function rebuild()
{
$redirects = [];
$this->flush();
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_redirect');
$queryBuilder->getRestrictions()->removeAll()
->add(GeneralUtility::makeInstance(HiddenRestriction::class))
->add(GeneralUtility::makeInstance(DeletedRestriction::class));
$statement = $queryBuilder
->select('*')
->from('sys_redirect')
->execute();
while ($row = $statement->fetch()) {
$host = $row['source_host'] ?: '*';
if ($row['is_regexp']) {
$redirects[$host]['regexp'][$row['source_path']][$row['uid']] = $row;
} else {
$redirects[$host]['flat'][rtrim($row['source_path'], '/') . '/'][$row['uid']] = $row;
}
}
$this->cache->set('redirects', $redirects, ['redirects']);
}
/**
* Used within the backend module, which also includes the hidden records
* @return array
*/
public function getAllRedirects(): array
{
$redirects = [];
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_redirect');
$queryBuilder->getRestrictions()->removeAll()
->add(GeneralUtility::makeInstance(DeletedRestriction::class));
$statement = $queryBuilder
->select('*')
->from('sys_redirect')
->execute();
while ($row = $statement->fetch()) {
$host = $row['source_host'] ?: '*';
if ($row['is_regexp']) {
$redirects[$host]['regexp'][$row['source_path']][$row['uid']] = $row;
} else {
$redirects[$host]['flat'][rtrim($row['source_path'], '/') . '/'][$row['uid']] = $row;
}
}
return $redirects;
}
/**
* Flushes all redirects from the cache
*/
protected function flush()
{
$this->cache->flushByTag('redirects');
}
}