events/Classes/Service/Cleanup/Files.php

136 lines
4.4 KiB
PHP

<?php
namespace Wrm\Events\Service\Cleanup;
/*
* Copyright (C) 2019 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
use TYPO3\CMS\Core\Database\Connection;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Database\Query\QueryBuilder;
use TYPO3\CMS\Core\Resource\StorageRepository;
class Files
{
/**
* @var ConnectionPool
*/
private $connectionPool;
/**
* @var StorageRepository
*/
private $storageRepository;
public function __construct(
ConnectionPool $connectionPool,
StorageRepository $storageRepository
) {
$this->connectionPool = $connectionPool;
$this->storageRepository = $storageRepository;
}
public function deleteAll(): void
{
$this->delete($this->getFilesFromDb());
}
public function deleteDangling(): void
{
$this->delete($this->getFilesFromDb(function (QueryBuilder $queryBuilder) {
$queryBuilder->leftJoin(
'file',
'sys_file_reference',
'reference',
$queryBuilder->expr()->eq('file.uid', $queryBuilder->quoteIdentifier('reference.uid_local'))
);
$queryBuilder->andWhere(
$queryBuilder->expr()->orX(
$queryBuilder->expr()->isNull('reference.uid'),
$queryBuilder->expr()->eq('reference.deleted', 1),
$queryBuilder->expr()->eq('reference.hidden', 1)
)
);
}));
}
private function getFilesFromDb(callable $whereGenerator = null): array
{
$queryBuilder = $this->connectionPool->getQueryBuilderForTable('sys_file');
$queryBuilder->getRestrictions()->removeAll();
$queryBuilder->select('file.identifier', 'file.storage', 'file.uid')
->from('sys_file', 'file')
->where($queryBuilder->expr()->like(
'file.identifier',
$queryBuilder->createNamedParameter('/staedte/%/events/%')
));
if ($whereGenerator !== null) {
$whereGenerator($queryBuilder);
}
return $queryBuilder->execute()->fetchAll();
}
private function delete(array $filesToDelete): void
{
$uidsToRemove = [];
foreach ($filesToDelete as $fileToDelete) {
$this->deleteFromFal($fileToDelete['storage'], $fileToDelete['identifier']);
$uidsToRemove[] = $fileToDelete['uid'];
}
$this->deleteFromDb(...$uidsToRemove);
}
private function deleteFromFal(int $storageUid, string $filePath): void
{
$storage = $this->storageRepository->findByUid($storageUid);
if ($storage === null || $storage->hasFile($filePath) === false) {
return;
}
$storage->deleteFile($storage->getFile($filePath));
}
private function deleteFromDb(int ...$uids): void
{
$queryBuilder = $this->connectionPool->getQueryBuilderForTable('sys_file');
$queryBuilder->delete('sys_file')
->where('uid in (:uids)')
->setParameter(':uids', $uids, Connection::PARAM_INT_ARRAY)
->execute();
$queryBuilder = $this->connectionPool->getQueryBuilderForTable('sys_file_reference');
$queryBuilder->delete('sys_file_reference')
->where('uid_local in (:uids)')
->setParameter(':uids', $uids, Connection::PARAM_INT_ARRAY)
->execute();
$queryBuilder = $this->connectionPool->getQueryBuilderForTable('sys_file_metadata');
$queryBuilder->delete('sys_file_metadata')
->where('file in (:uids)')
->setParameter(':uids', $uids, Connection::PARAM_INT_ARRAY)
->execute();
}
}