1 files changed, 142 insertions, 0 deletions
diff --git a/apps/files_external/service/userstoragesservice.php b/apps/files_external/service/userstoragesservice.php
new file mode 100644
index 00000000000..fcf579c5d43
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+++ b/apps/files_external/service/userstoragesservice.php
@@ -0,0 +1,142 @@
+<?php
+/**
+ * Copyright (c) 2015 Vincent Petry <pvince81@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OCA\Files_external\Service;
+
+use \OCP\IUserSession;
+use \OC\Files\Filesystem;
+
+use \OCA\Files_external\Lib\StorageConfig;
+use \OCA\Files_external\NotFoundException;
+
+/**
+ * Service class to manage user external storages
+ * (aka personal storages)
+ */
+class UserStoragesService extends StoragesService {
+	/**
+	 * @var IUserSession
+	 */
+	private $userSession;
+
+	public function __construct(
+		IUserSession $userSession
+	) {
+		$this->userSession = $userSession;
+	}
+
+	/**
+	 * Read legacy config data
+	 *
+	 * @return array list of storage configs
+	 */
+	protected function readLegacyConfig() {
+		// read user config
+		$user = $this->userSession->getUser()->getUID();
+		return \OC_Mount_Config::readData($user);
+	}
+
+	/**
+	 * Read the external storages config
+	 *
+	 * @return array map of storage id to storage config
+	 */
+	protected function readConfig() {
+		$user = $this->userSession->getUser()->getUID();
+		// TODO: in the future don't rely on the global config reading code
+		$storages = parent::readConfig();
+
+		$filteredStorages = [];
+		foreach ($storages as $configId => $storage) {
+			// filter out all bogus storages that aren't for the current user
+			if (!in_array($user, $storage->getApplicableUsers())) {
+				continue;
+			}
+
+			// clear applicable users, should not be used
+			$storage->setApplicableUsers([]);
+
+			// strip out unneeded applicableUser fields
+			$filteredStorages[$configId] = $storage;
+		}
+
+		return $filteredStorages;
+	}
+
+	/**
+	 * Write the storages to the user's configuration.
+	 *
+	 * @param array $storages map of storage id to storage config
+	 */
+	public function writeConfig($storages) {
+		$user = $this->userSession->getUser()->getUID();
+
+		// let the horror begin
+		$mountPoints = [];
+		foreach ($storages as $storageConfig) {
+			$mountPoint = $storageConfig->getMountPoint();
+			$oldBackendOptions = $storageConfig->getBackendOptions();
+			$storageConfig->setBackendOptions(
+				\OC_Mount_Config::encryptPasswords(
+					$oldBackendOptions
+				)
+			);
+
+			$rootMountPoint = '/' . $user . '/files/' . ltrim($mountPoint, '/');
+
+			$this->addMountPoint(
+				$mountPoints,
+				\OC_Mount_Config::MOUNT_TYPE_USER,
+				$user,
+				$rootMountPoint,
+				$storageConfig
+			);
+
+			// restore old backend options where the password was not encrypted,
+			// because we don't want to change the state of the original object
+			$storageConfig->setBackendOptions($oldBackendOptions);
+		}
+
+		\OC_Mount_Config::writeData($user, $mountPoints);
+	}
+
+	/**
+	 * Triggers $signal for all applicable users of the given
+	 * storage
+	 *
+	 * @param StorageConfig $storage storage data
+	 * @param string $signal signal to trigger
+	 */
+	protected function triggerHooks(StorageConfig $storage, $signal) {
+		$user = $this->userSession->getUser()->getUID();
+
+		// trigger hook for the current user
+		$this->triggerApplicableHooks(
+			$signal,
+			$storage->getMountPoint(),
+			\OC_Mount_Config::MOUNT_TYPE_USER,
+			[$user]
+		);
+	}
+
+	/**
+	 * Triggers signal_create_mount or signal_delete_mount to
+	 * accomodate for additions/deletions in applicableUsers
+	 * and applicableGroups fields.
+	 *
+	 * @param StorageConfig $oldStorage old storage data
+	 * @param StorageConfig $newStorage new storage data
+	 */
+	protected function triggerChangeHooks(StorageConfig $oldStorage, StorageConfig $newStorage) {
+		// if mount point changed, it's like a deletion + creation
+		if ($oldStorage->getMountPoint() !== $newStorage->getMountPoint()) {
+			$this->triggerHooks($oldStorage, Filesystem::signal_delete_mount);
+			$this->triggerHooks($newStorage, Filesystem::signal_create_mount);
+		}
+	}
+}