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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Preview\Storage;
use OC\Files\AppData\AppData;
use OC\SystemConfig;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFolder;
class Root extends AppData {
private $isMultibucketPreviewDistributionEnabled = false;
public function __construct(IRootFolder $rootFolder, SystemConfig $systemConfig) {
parent::__construct($rootFolder, $systemConfig, 'preview');
$this->isMultibucketPreviewDistributionEnabled = $systemConfig->getValue('objectstore.multibucket.preview-distribution', false) === true;
}
public function getFolder(string $name): ISimpleFolder {
$internalFolder = self::getInternalFolder($name);
try {
return parent::getFolder($internalFolder);
} catch (NotFoundException $e) {
/*
* The new folder structure is not found.
* Lets try the old one
*/
}
try {
return parent::getFolder($name);
} catch (NotFoundException $e) {
/*
* The old folder structure is not found.
* Lets try the multibucket fallback if available
*/
if ($this->isMultibucketPreviewDistributionEnabled) {
return parent::getFolder('old-multibucket/' . $internalFolder);
}
// when there is no further fallback just throw the exception
throw $e;
}
}
public function newFolder(string $name): ISimpleFolder {
$internalFolder = self::getInternalFolder($name);
return parent::newFolder($internalFolder);
}
/*
* Do not allow directory listing on this special root
* since it gets to big and time consuming
*/
public function getDirectoryListing(): array {
return [];
}
public static function getInternalFolder(string $name): string {
return implode('/', str_split(substr(md5($name), 0, 7))) . '/' . $name;
}
public function getStorageId(): int {
return $this->getAppDataRootFolder()->getStorage()->getCache()->getNumericStorageId();
}
}
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