nextcloud/lib/private/Repair/NC16/CleanupCardDAVPhotoCache.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2019, Daniel Kesselberg (mail@danielkesselberg.de)
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OC\Repair\NC16;
use OCP\Files\IAppData;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFolder;
use OCP\IConfig;
use OCP\ILogger;
use OCP\Migration\IOutput;
use OCP\Migration\IRepairStep;
use RuntimeException;
/**
* Class CleanupCardDAVPhotoCache
*
* This repair step removes "photo." files created by photocache
*
* Before https://github.com/nextcloud/server/pull/13843 a "photo." file could be created
* for unsupported image formats by photocache. Because a file is present but not jpg, png or gif no
* photo could be returned for this vcard. These invalid files are removed by this migration step.
*/
class CleanupCardDAVPhotoCache implements IRepairStep {
/** @var IConfig */
private $config;
/** @var IAppData */
private $appData;
/** @var ILogger */
private $logger;
public function __construct(IConfig $config, IAppData $appData, ILogger $logger) {
$this->config = $config;
$this->appData = $appData;
$this->logger = $logger;
}
public function getName(): string {
return 'Cleanup invalid photocache files for carddav';
}
private function repair(IOutput $output): void {
try {
$folders = $this->appData->getDirectoryListing();
} catch (NotFoundException $e) {
return;
} catch (RuntimeException $e) {
$this->logger->logException($e, ['message' => 'Failed to fetch directory listing in CleanupCardDAVPhotoCache']);
return;
}
$folders = array_filter($folders, function (ISimpleFolder $folder) {
return $folder->fileExists('photo.');
});
if (empty($folders)) {
return;
}
$output->info('Delete ' . count($folders) . ' "photo." files');
foreach ($folders as $folder) {
try {
/** @var ISimpleFolder $folder */
$folder->getFile('photo.')->delete();
} catch (\Exception $e) {
$this->logger->logException($e);
$output->warning('Could not delete file "dav-photocache/' . $folder->getName() . '/photo."');
}
}
}
private function shouldRun(): bool {
return version_compare(
$this->config->getSystemValue('version', '0.0.0.0'),
'16.0.0.0',
'<='
);
}
public function run(IOutput $output): void {
if ($this->shouldRun()) {
$this->repair($output);
}
}
}