Move Config to PSR-4

1 files changed, 183 insertions, 0 deletions

diff --git a/apps/files_external/lib/Config/ConfigAdapter.php b/apps/files_external/lib/Config/ConfigAdapter.php
new file mode 100644
index 00000000000..a05ff555f72
--- /dev/null
+++ b/apps/files_external/lib/Config/ConfigAdapter.php
@@ -0,0 +1,183 @@
+<?php
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ * @author Robin Appelman <icewind@owncloud.com>
+ * @author Robin McCorkell <robin@mccorkell.me.uk>
+ *
+ * @copyright Copyright (c) 2016, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * 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, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OCA\Files_External\Config;
+
+use OC\Files\Storage\Wrapper\Availability;
+use OCA\Files_External\Migration\StorageMigrator;
+use OCP\Files\Storage;
+use OC\Files\Mount\MountPoint;
+use OCP\Files\Storage\IStorageFactory;
+use OCA\Files_External\Lib\PersonalMount;
+use OCP\Files\Config\IMountProvider;
+use OCP\IUser;
+use OCA\Files_External\Service\UserStoragesService;
+use OCA\Files_External\Service\UserGlobalStoragesService;
+use OCA\Files_External\Lib\StorageConfig;
+use OC\Files\Storage\FailedStorage;
+use OCP\Files\StorageNotAvailableException;
+
+/**
+ * Make the old files_external config work with the new public mount config api
+ */
+class ConfigAdapter implements IMountProvider {
+
+	/** @var UserStoragesService */
+	private $userStoragesService;
+
+	/** @var UserGlobalStoragesService */
+	private $userGlobalStoragesService;
+	/** @var StorageMigrator  */
+	private $migrator;
+
+	/**
+	 * @param UserStoragesService $userStoragesService
+	 * @param UserGlobalStoragesService $userGlobalStoragesService
+	 * @param StorageMigrator $migrator
+	 */
+	public function __construct(
+		UserStoragesService $userStoragesService,
+		UserGlobalStoragesService $userGlobalStoragesService,
+		StorageMigrator $migrator
+	) {
+		$this->userStoragesService = $userStoragesService;
+		$this->userGlobalStoragesService = $userGlobalStoragesService;
+		$this->migrator = $migrator;
+	}
+
+	/**
+	 * Process storage ready for mounting
+	 *
+	 * @param StorageConfig $storage
+	 * @param IUser $user
+	 */
+	private function prepareStorageConfig(StorageConfig &$storage, IUser $user) {
+		foreach ($storage->getBackendOptions() as $option => $value) {
+			$storage->setBackendOption($option, \OC_Mount_Config::setUserVars(
+				$user->getUID(), $value
+			));
+		}
+
+		$objectStore = $storage->getBackendOption('objectstore');
+		if ($objectStore) {
+			$objectClass = $objectStore['class'];
+			if (!is_subclass_of($objectClass, '\OCP\Files\ObjectStore\IObjectStore')) {
+				throw new \InvalidArgumentException('Invalid object store');
+			}
+			$storage->setBackendOption('objectstore', new $objectClass($objectStore));
+		}
+
+		$storage->getAuthMechanism()->manipulateStorageConfig($storage, $user);
+		$storage->getBackend()->manipulateStorageConfig($storage, $user);
+	}
+
+	/**
+	 * Construct the storage implementation
+	 *
+	 * @param StorageConfig $storageConfig
+	 * @return Storage
+	 */
+	private function constructStorage(StorageConfig $storageConfig) {
+		$class = $storageConfig->getBackend()->getStorageClass();
+		$storage = new $class($storageConfig->getBackendOptions());
+
+		// auth mechanism should fire first
+		$storage = $storageConfig->getBackend()->wrapStorage($storage);
+		$storage = $storageConfig->getAuthMechanism()->wrapStorage($storage);
+
+		return $storage;
+	}
+
+	/**
+	 * Get all mountpoints applicable for the user
+	 *
+	 * @param \OCP\IUser $user
+	 * @param \OCP\Files\Storage\IStorageFactory $loader
+	 * @return \OCP\Files\Mount\IMountPoint[]
+	 */
+	public function getMountsForUser(IUser $user, IStorageFactory $loader) {
+		$this->migrator->migrateUser($user);
+
+		$mounts = [];
+
+		$this->userStoragesService->setUser($user);
+		$this->userGlobalStoragesService->setUser($user);
+
+		foreach ($this->userGlobalStoragesService->getUniqueStorages() as $storage) {
+			try {
+				$this->prepareStorageConfig($storage, $user);
+				$impl = $this->constructStorage($storage);
+			} catch (\Exception $e) {
+				// propagate exception into filesystem
+				$impl = new FailedStorage(['exception' => $e]);
+			}
+
+			try {
+				$availability = $impl->getAvailability();
+				if (!$availability['available'] && !Availability::shouldRecheck($availability)) {
+					$impl = new FailedStorage([
+						'exception' => new StorageNotAvailableException('Storage with mount id ' . $storage->getId() . ' is not available')
+					]);
+				}
+			} catch (\Exception $e) {
+				// propagate exception into filesystem
+				$impl = new FailedStorage(['exception' => $e]);
+			}
+
+			$mount = new MountPoint(
+				$impl,
+				'/' . $user->getUID() . '/files' . $storage->getMountPoint(),
+				null,
+				$loader,
+				$storage->getMountOptions()
+			);
+			$mounts[$storage->getMountPoint()] = $mount;
+		}
+
+		foreach ($this->userStoragesService->getStorages() as $storage) {
+			try {
+				$this->prepareStorageConfig($storage, $user);
+				$impl = $this->constructStorage($storage);
+			} catch (\Exception $e) {
+				// propagate exception into filesystem
+				$impl = new FailedStorage(['exception' => $e]);
+			}
+
+			$mount = new PersonalMount(
+				$this->userStoragesService,
+				$storage->getId(),
+				$impl,
+				'/' . $user->getUID() . '/files' . $storage->getMountPoint(),
+				null,
+				$loader,
+				$storage->getMountOptions()
+			);
+			$mounts[$storage->getMountPoint()] = $mount;
+		}
+
+		$this->userStoragesService->resetUser();
+		$this->userGlobalStoragesService->resetUser();
+
+		return $mounts;
+	}
+}