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<?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\Resource\Processing;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Resource\Event\AfterFileAddedEvent;
use TYPO3\CMS\Core\Resource\Event\AfterFileDeletedEvent;
use TYPO3\CMS\Core\Resource\Event\AfterFileReplacedEvent;
use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Resource\FileInterface;
use TYPO3\CMS\Core\Resource\Index\FileIndexRepository;
use TYPO3\CMS\Core\Resource\Index\MetaDataRepository;
use TYPO3\CMS\Core\Resource\ProcessedFile;
use TYPO3\CMS\Core\Resource\ProcessedFileRepository;
use TYPO3\CMS\Core\Utility\GeneralUtility;
/**
* The aspect cleans up database records, processed files and file references
*
* We do not have AOP in TYPO3 for now, thus the aspect which
* deals with deleted files is a list of PSR-14 event listeners which react on file deletion.
*
* @internal this is a list of Event Listeners, and not part of TYPO3 Core API.
*/
final class FileDeletionAspect
{
public function cleanupProcessedFilesPostFileAdd(AfterFileAddedEvent $event): void
{
$this->cleanupProcessedFiles($event->getFile());
}
public function cleanupProcessedFilesPostFileReplace(AfterFileReplacedEvent $event): void
{
$this->cleanupProcessedFiles($event->getFile());
}
public function removeFromRepositoryAfterFileDeleted(AfterFileDeletedEvent $event): void
{
$this->removeFromRepository($event->getFile());
}
/**
* Cleanup database record for a deleted file
*/
private function removeFromRepository(FileInterface $fileObject)
{
// remove file from repository
if ($fileObject instanceof File) {
$this->cleanupProcessedFiles($fileObject);
$this->cleanupCategoryReferences($fileObject);
$this->getFileIndexRepository()->remove($fileObject->getUid());
$this->getMetaDataRepository()->removeByFileUid($fileObject->getUid());
// remove all references
GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('sys_file_reference')
->delete(
'sys_file_reference',
[
'uid_local' => (int)$fileObject->getUid(),
]
);
} elseif ($fileObject instanceof ProcessedFile) {
GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('sys_file_processedfile')
->delete(
'sys_file_processedfile',
[
'uid' => (int)$fileObject->getUid(),
]
);
}
}
/**
* Remove all category references of the deleted file.
*/
private function cleanupCategoryReferences(File $fileObject)
{
// Retrieve the file metadata uid which is different from the file uid.
$metadataProperties = $fileObject->getMetaData()->get();
$metaDataUid = $metadataProperties['_ORIG_uid'] ?? $metadataProperties['uid'];
GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('sys_category_record_mm')
->delete(
'sys_category_record_mm',
[
'uid_foreign' => (int)$metaDataUid,
'tablenames' => 'sys_file_metadata',
]
);
}
/**
* Remove all processed files that belong to the given File object
*/
private function cleanupProcessedFiles(FileInterface $fileObject)
{
// only delete processed files of File objects
if (!$fileObject instanceof File) {
return;
}
foreach ($this->getProcessedFileRepository()->findAllByOriginalFile($fileObject) as $processedFile) {
if ($processedFile->exists()) {
$processedFile->delete(true);
}
$this->removeFromRepository($processedFile);
}
}
private function getFileIndexRepository(): FileIndexRepository
{
return GeneralUtility::makeInstance(FileIndexRepository::class);
}
private function getMetaDataRepository(): MetaDataRepository
{
return GeneralUtility::makeInstance(MetaDataRepository::class);
}
private function getProcessedFileRepository(): ProcessedFileRepository
{
return GeneralUtility::makeInstance(ProcessedFileRepository::class);
}
}