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- <?php
- declare(strict_types=1);
- /**
- * @copyright 2016 Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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\Files\AppData;
- use OC\Cache\CappedMemoryCache;
- use OC\Files\SimpleFS\SimpleFolder;
- use OCP\Files\IAppData;
- use OCP\Files\IRootFolder;
- use OCP\Files\Folder;
- use OC\SystemConfig;
- use OCP\Files\Node;
- use OCP\Files\NotFoundException;
- use OCP\Files\NotPermittedException;
- use OCP\Files\SimpleFS\ISimpleFolder;
- class AppData implements IAppData {
- /** @var IRootFolder */
- private $rootFolder;
- /** @var SystemConfig */
- private $config;
- /** @var string */
- private $appId;
- /** @var Folder */
- private $folder;
- /** @var (ISimpleFolder|NotFoundException)[]|CappedMemoryCache */
- private $folders;
- /**
- * AppData constructor.
- *
- * @param IRootFolder $rootFolder
- * @param SystemConfig $systemConfig
- * @param string $appId
- */
- public function __construct(IRootFolder $rootFolder,
- SystemConfig $systemConfig,
- string $appId) {
- $this->rootFolder = $rootFolder;
- $this->config = $systemConfig;
- $this->appId = $appId;
- $this->folders = new CappedMemoryCache();
- }
- private function getAppDataFolderName() {
- $instanceId = $this->config->getValue('instanceid', null);
- if ($instanceId === null) {
- throw new \RuntimeException('no instance id!');
- }
- return 'appdata_' . $instanceId;
- }
- private function getAppDataRootFolder(): Folder {
- $name = $this->getAppDataFolderName();
- try {
- /** @var Folder $node */
- $node = $this->rootFolder->get($name);
- return $node;
- } catch (NotFoundException $e) {
- try {
- return $this->rootFolder->newFolder($name);
- } catch (NotPermittedException $e) {
- throw new \RuntimeException('Could not get appdata folder');
- }
- }
- }
- /**
- * @return Folder
- * @throws \RuntimeException
- */
- private function getAppDataFolder(): Folder {
- if ($this->folder === null) {
- $name = $this->getAppDataFolderName();
- try {
- $this->folder = $this->rootFolder->get($name . '/' . $this->appId);
- } catch (NotFoundException $e) {
- $appDataRootFolder = $this->getAppDataRootFolder();
- try {
- $this->folder = $appDataRootFolder->get($this->appId);
- } catch (NotFoundException $e) {
- try {
- $this->folder = $appDataRootFolder->newFolder($this->appId);
- } catch (NotPermittedException $e) {
- throw new \RuntimeException('Could not get appdata folder for ' . $this->appId);
- }
- }
- }
- }
- return $this->folder;
- }
- public function getFolder(string $name): ISimpleFolder {
- $key = $this->appId . '/' . $name;
- if ($cachedFolder = $this->folders->get($key)) {
- if ($cachedFolder instanceof \Exception) {
- throw $cachedFolder;
- } else {
- return $cachedFolder;
- }
- }
- try {
- // Hardening if somebody wants to retrieve '/'
- if ($name === '/') {
- $node = $this->getAppDataFolder();
- } else {
- $path = $this->getAppDataFolderName() . '/' . $this->appId . '/' . $name;
- $node = $this->rootFolder->get($path);
- }
- } catch (NotFoundException $e) {
- $this->folders->set($key, $e);
- throw $e;
- }
- /** @var Folder $node */
- $folder = new SimpleFolder($node);
- $this->folders->set($key, $folder);
- return $folder;
- }
- public function newFolder(string $name): ISimpleFolder {
- $key = $this->appId . '/' . $name;
- $folder = $this->getAppDataFolder()->newFolder($name);
- $simpleFolder = new SimpleFolder($folder);
- $this->folders->set($key, $simpleFolder);
- return $simpleFolder;
- }
- public function getDirectoryListing(): array {
- $listing = $this->getAppDataFolder()->getDirectoryListing();
- $fileListing = array_map(function (Node $folder) {
- if ($folder instanceof Folder) {
- return new SimpleFolder($folder);
- }
- return null;
- }, $listing);
- $fileListing = array_filter($fileListing);
- return array_values($fileListing);
- }
- public function getId(): int {
- return $this->getAppDataFolder()->getId();
- }
- }
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