nextcloud / server

lib/private/Comments/Manager.php

Doc Comments +1 added lines, -1 removed lines

@@ -205,7 +205,7 @@
 	/**
 	 * removes an entry from the comments run time cache
 	 *
-	 * @param mixed $id the comment's id
+	 * @param string $id the comment's id
 	 */
 	protected function uncache($id) {
 		$id = strval($id);

Indentation +838 added lines, -838 removed lines

@@ -39,842 +39,842 @@
 
 class Manager implements ICommentsManager {
 
-	/** @var  IDBConnection */
-	protected $dbConn;
-
-	/** @var  ILogger */
-	protected $logger;
-
-	/** @var IConfig */
-	protected $config;
-
-	/** @var IComment[] */
-	protected $commentsCache = [];
-
-	/** @var  \Closure[] */
-	protected $eventHandlerClosures = [];
-
-	/** @var  ICommentsEventHandler[] */
-	protected $eventHandlers = [];
-
-	/** @var \Closure[] */
-	protected $displayNameResolvers = [];
-
-	/**
-	 * Manager constructor.
-	 *
-	 * @param IDBConnection $dbConn
-	 * @param ILogger $logger
-	 * @param IConfig $config
-	 */
-	public function __construct(
-		IDBConnection $dbConn,
-		ILogger $logger,
-		IConfig $config
-	) {
-		$this->dbConn = $dbConn;
-		$this->logger = $logger;
-		$this->config = $config;
-	}
-
-	/**
-	 * converts data base data into PHP native, proper types as defined by
-	 * IComment interface.
-	 *
-	 * @param array $data
-	 * @return array
-	 */
-	protected function normalizeDatabaseData(array $data) {
-		$data['id'] = strval($data['id']);
-		$data['parent_id'] = strval($data['parent_id']);
-		$data['topmost_parent_id'] = strval($data['topmost_parent_id']);
-		$data['creation_timestamp'] = new \DateTime($data['creation_timestamp']);
-		if (!is_null($data['latest_child_timestamp'])) {
-			$data['latest_child_timestamp'] = new \DateTime($data['latest_child_timestamp']);
-		}
-		$data['children_count'] = intval($data['children_count']);
-		return $data;
-	}
-
-	/**
-	 * prepares a comment for an insert or update operation after making sure
-	 * all necessary fields have a value assigned.
-	 *
-	 * @param IComment $comment
-	 * @return IComment returns the same updated IComment instance as provided
-	 *                  by parameter for convenience
-	 * @throws \UnexpectedValueException
-	 */
-	protected function prepareCommentForDatabaseWrite(IComment $comment) {
-		if (!$comment->getActorType()
-			|| !$comment->getActorId()
-			|| !$comment->getObjectType()
-			|| !$comment->getObjectId()
-			|| !$comment->getVerb()
-		) {
-			throw new \UnexpectedValueException('Actor, Object and Verb information must be provided for saving');
-		}
-
-		if ($comment->getId() === '') {
-			$comment->setChildrenCount(0);
-			$comment->setLatestChildDateTime(new \DateTime('0000-00-00 00:00:00', new \DateTimeZone('UTC')));
-			$comment->setLatestChildDateTime(null);
-		}
-
-		if (is_null($comment->getCreationDateTime())) {
-			$comment->setCreationDateTime(new \DateTime());
-		}
-
-		if ($comment->getParentId() !== '0') {
-			$comment->setTopmostParentId($this->determineTopmostParentId($comment->getParentId()));
-		} else {
-			$comment->setTopmostParentId('0');
-		}
-
-		$this->cache($comment);
-
-		return $comment;
-	}
-
-	/**
-	 * returns the topmost parent id of a given comment identified by ID
-	 *
-	 * @param string $id
-	 * @return string
-	 * @throws NotFoundException
-	 */
-	protected function determineTopmostParentId($id) {
-		$comment = $this->get($id);
-		if ($comment->getParentId() === '0') {
-			return $comment->getId();
-		} else {
-			return $this->determineTopmostParentId($comment->getId());
-		}
-	}
-
-	/**
-	 * updates child information of a comment
-	 *
-	 * @param string $id
-	 * @param \DateTime $cDateTime the date time of the most recent child
-	 * @throws NotFoundException
-	 */
-	protected function updateChildrenInformation($id, \DateTime $cDateTime) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select($qb->createFunction('COUNT(`id`)'))
-			->from('comments')
-			->where($qb->expr()->eq('parent_id', $qb->createParameter('id')))
-			->setParameter('id', $id);
-
-		$resultStatement = $query->execute();
-		$data = $resultStatement->fetch(\PDO::FETCH_NUM);
-		$resultStatement->closeCursor();
-		$children = intval($data[0]);
-
-		$comment = $this->get($id);
-		$comment->setChildrenCount($children);
-		$comment->setLatestChildDateTime($cDateTime);
-		$this->save($comment);
-	}
-
-	/**
-	 * Tests whether actor or object type and id parameters are acceptable.
-	 * Throws exception if not.
-	 *
-	 * @param string $role
-	 * @param string $type
-	 * @param string $id
-	 * @throws \InvalidArgumentException
-	 */
-	protected function checkRoleParameters($role, $type, $id) {
-		if (
-			!is_string($type) || empty($type)
-			|| !is_string($id) || empty($id)
-		) {
-			throw new \InvalidArgumentException($role . ' parameters must be string and not empty');
-		}
-	}
-
-	/**
-	 * run-time caches a comment
-	 *
-	 * @param IComment $comment
-	 */
-	protected function cache(IComment $comment) {
-		$id = $comment->getId();
-		if (empty($id)) {
-			return;
-		}
-		$this->commentsCache[strval($id)] = $comment;
-	}
-
-	/**
-	 * removes an entry from the comments run time cache
-	 *
-	 * @param mixed $id the comment's id
-	 */
-	protected function uncache($id) {
-		$id = strval($id);
-		if (isset($this->commentsCache[$id])) {
-			unset($this->commentsCache[$id]);
-		}
-	}
-
-	/**
-	 * returns a comment instance
-	 *
-	 * @param string $id the ID of the comment
-	 * @return IComment
-	 * @throws NotFoundException
-	 * @throws \InvalidArgumentException
-	 * @since 9.0.0
-	 */
-	public function get($id) {
-		if (intval($id) === 0) {
-			throw new \InvalidArgumentException('IDs must be translatable to a number in this implementation.');
-		}
-
-		if (isset($this->commentsCache[$id])) {
-			return $this->commentsCache[$id];
-		}
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$resultStatement = $qb->select('*')
-			->from('comments')
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $id, IQueryBuilder::PARAM_INT)
-			->execute();
-
-		$data = $resultStatement->fetch();
-		$resultStatement->closeCursor();
-		if (!$data) {
-			throw new NotFoundException();
-		}
-
-		$comment = new Comment($this->normalizeDatabaseData($data));
-		$this->cache($comment);
-		return $comment;
-	}
-
-	/**
-	 * returns the comment specified by the id and all it's child comments.
-	 * At this point of time, we do only support one level depth.
-	 *
-	 * @param string $id
-	 * @param int $limit max number of entries to return, 0 returns all
-	 * @param int $offset the start entry
-	 * @return array
-	 * @since 9.0.0
-	 *
-	 * The return array looks like this
-	 * [
-	 *   'comment' => IComment, // root comment
-	 *   'replies' =>
-	 *   [
-	 *     0 =>
-	 *     [
-	 *       'comment' => IComment,
-	 *       'replies' => []
-	 *     ]
-	 *     1 =>
-	 *     [
-	 *       'comment' => IComment,
-	 *       'replies'=> []
-	 *     ],
-	 *     …
-	 *   ]
-	 * ]
-	 */
-	public function getTree($id, $limit = 0, $offset = 0) {
-		$tree = [];
-		$tree['comment'] = $this->get($id);
-		$tree['replies'] = [];
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select('*')
-			->from('comments')
-			->where($qb->expr()->eq('topmost_parent_id', $qb->createParameter('id')))
-			->orderBy('creation_timestamp', 'DESC')
-			->setParameter('id', $id);
-
-		if ($limit > 0) {
-			$query->setMaxResults($limit);
-		}
-		if ($offset > 0) {
-			$query->setFirstResult($offset);
-		}
-
-		$resultStatement = $query->execute();
-		while ($data = $resultStatement->fetch()) {
-			$comment = new Comment($this->normalizeDatabaseData($data));
-			$this->cache($comment);
-			$tree['replies'][] = [
-				'comment' => $comment,
-				'replies' => []
-			];
-		}
-		$resultStatement->closeCursor();
-
-		return $tree;
-	}
-
-	/**
-	 * returns comments for a specific object (e.g. a file).
-	 *
-	 * The sort order is always newest to oldest.
-	 *
-	 * @param string $objectType the object type, e.g. 'files'
-	 * @param string $objectId the id of the object
-	 * @param int $limit optional, number of maximum comments to be returned. if
-	 * not specified, all comments are returned.
-	 * @param int $offset optional, starting point
-	 * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
-	 * that may be returned
-	 * @return IComment[]
-	 * @since 9.0.0
-	 */
-	public function getForObject(
-		$objectType,
-		$objectId,
-		$limit = 0,
-		$offset = 0,
-		\DateTime $notOlderThan = null
-	) {
-		$comments = [];
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select('*')
-			->from('comments')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-			->orderBy('creation_timestamp', 'DESC')
-			->setParameter('type', $objectType)
-			->setParameter('id', $objectId);
-
-		if ($limit > 0) {
-			$query->setMaxResults($limit);
-		}
-		if ($offset > 0) {
-			$query->setFirstResult($offset);
-		}
-		if (!is_null($notOlderThan)) {
-			$query
-				->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
-				->setParameter('notOlderThan', $notOlderThan, 'datetime');
-		}
-
-		$resultStatement = $query->execute();
-		while ($data = $resultStatement->fetch()) {
-			$comment = new Comment($this->normalizeDatabaseData($data));
-			$this->cache($comment);
-			$comments[] = $comment;
-		}
-		$resultStatement->closeCursor();
-
-		return $comments;
-	}
-
-	/**
-	 * @param $objectType string the object type, e.g. 'files'
-	 * @param $objectId string the id of the object
-	 * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
-	 * that may be returned
-	 * @return Int
-	 * @since 9.0.0
-	 */
-	public function getNumberOfCommentsForObject($objectType, $objectId, \DateTime $notOlderThan = null) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select($qb->createFunction('COUNT(`id`)'))
-			->from('comments')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-			->setParameter('type', $objectType)
-			->setParameter('id', $objectId);
-
-		if (!is_null($notOlderThan)) {
-			$query
-				->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
-				->setParameter('notOlderThan', $notOlderThan, 'datetime');
-		}
-
-		$resultStatement = $query->execute();
-		$data = $resultStatement->fetch(\PDO::FETCH_NUM);
-		$resultStatement->closeCursor();
-		return intval($data[0]);
-	}
-
-	/**
-	 * Get the number of unread comments for all files in a folder
-	 *
-	 * @param int $folderId
-	 * @param IUser $user
-	 * @return array [$fileId => $unreadCount]
-	 */
-	public function getNumberOfUnreadCommentsForFolder($folderId, IUser $user) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select('fileid', $qb->createFunction(
-			'COUNT(' . $qb->getColumnName('c.id') . ')')
-		)->from('comments', 'c')
-			->innerJoin('c', 'filecache', 'f', $qb->expr()->andX(
-				$qb->expr()->eq('c.object_type', $qb->createNamedParameter('files')),
-				$qb->expr()->eq('f.fileid', $qb->expr()->castColumn('c.object_id', IQueryBuilder::PARAM_INT))
-			))
-			->leftJoin('c', 'comments_read_markers', 'm', $qb->expr()->andX(
-				$qb->expr()->eq('m.object_type', $qb->createNamedParameter('files')),
-				$qb->expr()->eq('m.object_id', 'c.object_id'),
-				$qb->expr()->eq('m.user_id', $qb->createNamedParameter($user->getUID()))
-			))
-			->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($folderId)))
-			->andWhere($qb->expr()->orX(
-				$qb->expr()->gt('c.creation_timestamp', 'marker_datetime'),
-				$qb->expr()->isNull('marker_datetime')
-			))
-			->groupBy('f.fileid');
-
-		$resultStatement = $query->execute();
-		return array_map(function ($count) {
-			return (int)$count;
-		}, $resultStatement->fetchAll(\PDO::FETCH_KEY_PAIR));
-	}
-
-	/**
-	 * creates a new comment and returns it. At this point of time, it is not
-	 * saved in the used data storage. Use save() after setting other fields
-	 * of the comment (e.g. message or verb).
-	 *
-	 * @param string $actorType the actor type (e.g. 'users')
-	 * @param string $actorId a user id
-	 * @param string $objectType the object type the comment is attached to
-	 * @param string $objectId the object id the comment is attached to
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function create($actorType, $actorId, $objectType, $objectId) {
-		$comment = new Comment();
-		$comment
-			->setActor($actorType, $actorId)
-			->setObject($objectType, $objectId);
-		return $comment;
-	}
-
-	/**
-	 * permanently deletes the comment specified by the ID
-	 *
-	 * When the comment has child comments, their parent ID will be changed to
-	 * the parent ID of the item that is to be deleted.
-	 *
-	 * @param string $id
-	 * @return bool
-	 * @throws \InvalidArgumentException
-	 * @since 9.0.0
-	 */
-	public function delete($id) {
-		if (!is_string($id)) {
-			throw new \InvalidArgumentException('Parameter must be string');
-		}
-
-		try {
-			$comment = $this->get($id);
-		} catch (\Exception $e) {
-			// Ignore exceptions, we just don't fire a hook then
-			$comment = null;
-		}
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments')
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $id);
-
-		try {
-			$affectedRows = $query->execute();
-			$this->uncache($id);
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-
-		if ($affectedRows > 0 && $comment instanceof IComment) {
-			$this->sendEvent(CommentsEvent::EVENT_DELETE, $comment);
-		}
-
-		return ($affectedRows > 0);
-	}
-
-	/**
-	 * saves the comment permanently
-	 *
-	 * if the supplied comment has an empty ID, a new entry comment will be
-	 * saved and the instance updated with the new ID.
-	 *
-	 * Otherwise, an existing comment will be updated.
-	 *
-	 * Throws NotFoundException when a comment that is to be updated does not
-	 * exist anymore at this point of time.
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 * @throws NotFoundException
-	 * @since 9.0.0
-	 */
-	public function save(IComment $comment) {
-		if ($this->prepareCommentForDatabaseWrite($comment)->getId() === '') {
-			$result = $this->insert($comment);
-		} else {
-			$result = $this->update($comment);
-		}
-
-		if ($result && !!$comment->getParentId()) {
-			$this->updateChildrenInformation(
-				$comment->getParentId(),
-				$comment->getCreationDateTime()
-			);
-			$this->cache($comment);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * inserts the provided comment in the database
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 */
-	protected function insert(IComment &$comment) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->insert('comments')
-			->values([
-				'parent_id' => $qb->createNamedParameter($comment->getParentId()),
-				'topmost_parent_id' => $qb->createNamedParameter($comment->getTopmostParentId()),
-				'children_count' => $qb->createNamedParameter($comment->getChildrenCount()),
-				'actor_type' => $qb->createNamedParameter($comment->getActorType()),
-				'actor_id' => $qb->createNamedParameter($comment->getActorId()),
-				'message' => $qb->createNamedParameter($comment->getMessage()),
-				'verb' => $qb->createNamedParameter($comment->getVerb()),
-				'creation_timestamp' => $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'),
-				'latest_child_timestamp' => $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'),
-				'object_type' => $qb->createNamedParameter($comment->getObjectType()),
-				'object_id' => $qb->createNamedParameter($comment->getObjectId()),
-			])
-			->execute();
-
-		if ($affectedRows > 0) {
-			$comment->setId(strval($qb->getLastInsertId()));
-			$this->sendEvent(CommentsEvent::EVENT_ADD, $comment);
-		}
-
-		return $affectedRows > 0;
-	}
-
-	/**
-	 * updates a Comment data row
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 * @throws NotFoundException
-	 */
-	protected function update(IComment $comment) {
-		// for properly working preUpdate Events we need the old comments as is
-		// in the DB and overcome caching. Also avoid that outdated information stays.
-		$this->uncache($comment->getId());
-		$this->sendEvent(CommentsEvent::EVENT_PRE_UPDATE, $this->get($comment->getId()));
-		$this->uncache($comment->getId());
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->update('comments')
-			->set('parent_id', $qb->createNamedParameter($comment->getParentId()))
-			->set('topmost_parent_id', $qb->createNamedParameter($comment->getTopmostParentId()))
-			->set('children_count', $qb->createNamedParameter($comment->getChildrenCount()))
-			->set('actor_type', $qb->createNamedParameter($comment->getActorType()))
-			->set('actor_id', $qb->createNamedParameter($comment->getActorId()))
-			->set('message', $qb->createNamedParameter($comment->getMessage()))
-			->set('verb', $qb->createNamedParameter($comment->getVerb()))
-			->set('creation_timestamp', $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'))
-			->set('latest_child_timestamp', $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'))
-			->set('object_type', $qb->createNamedParameter($comment->getObjectType()))
-			->set('object_id', $qb->createNamedParameter($comment->getObjectId()))
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $comment->getId())
-			->execute();
-
-		if ($affectedRows === 0) {
-			throw new NotFoundException('Comment to update does ceased to exist');
-		}
-
-		$this->sendEvent(CommentsEvent::EVENT_UPDATE, $comment);
-
-		return $affectedRows > 0;
-	}
-
-	/**
-	 * removes references to specific actor (e.g. on user delete) of a comment.
-	 * The comment itself must not get lost/deleted.
-	 *
-	 * @param string $actorType the actor type (e.g. 'users')
-	 * @param string $actorId a user id
-	 * @return boolean
-	 * @since 9.0.0
-	 */
-	public function deleteReferencesOfActor($actorType, $actorId) {
-		$this->checkRoleParameters('Actor', $actorType, $actorId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->update('comments')
-			->set('actor_type', $qb->createNamedParameter(ICommentsManager::DELETED_USER))
-			->set('actor_id', $qb->createNamedParameter(ICommentsManager::DELETED_USER))
-			->where($qb->expr()->eq('actor_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('actor_id', $qb->createParameter('id')))
-			->setParameter('type', $actorType)
-			->setParameter('id', $actorId)
-			->execute();
-
-		$this->commentsCache = [];
-
-		return is_int($affectedRows);
-	}
-
-	/**
-	 * deletes all comments made of a specific object (e.g. on file delete)
-	 *
-	 * @param string $objectType the object type (e.g. 'files')
-	 * @param string $objectId e.g. the file id
-	 * @return boolean
-	 * @since 9.0.0
-	 */
-	public function deleteCommentsAtObject($objectType, $objectId) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->delete('comments')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-			->setParameter('type', $objectType)
-			->setParameter('id', $objectId)
-			->execute();
-
-		$this->commentsCache = [];
-
-		return is_int($affectedRows);
-	}
-
-	/**
-	 * deletes the read markers for the specified user
-	 *
-	 * @param \OCP\IUser $user
-	 * @return bool
-	 * @since 9.0.0
-	 */
-	public function deleteReadMarksFromUser(IUser $user) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments_read_markers')
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->setParameter('user_id', $user->getUID());
-
-		try {
-			$affectedRows = $query->execute();
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-		return ($affectedRows > 0);
-	}
-
-	/**
-	 * sets the read marker for a given file to the specified date for the
-	 * provided user
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @param \DateTime $dateTime
-	 * @param IUser $user
-	 * @since 9.0.0
-	 */
-	public function setReadMark($objectType, $objectId, \DateTime $dateTime, IUser $user) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$values = [
-			'user_id' => $qb->createNamedParameter($user->getUID()),
-			'marker_datetime' => $qb->createNamedParameter($dateTime, 'datetime'),
-			'object_type' => $qb->createNamedParameter($objectType),
-			'object_id' => $qb->createNamedParameter($objectId),
-		];
-
-		// Strategy: try to update, if this does not return affected rows, do an insert.
-		$affectedRows = $qb
-			->update('comments_read_markers')
-			->set('user_id', $values['user_id'])
-			->set('marker_datetime', $values['marker_datetime'])
-			->set('object_type', $values['object_type'])
-			->set('object_id', $values['object_id'])
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
-			->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
-			->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
-			->execute();
-
-		if ($affectedRows > 0) {
-			return;
-		}
-
-		$qb->insert('comments_read_markers')
-			->values($values)
-			->execute();
-	}
-
-	/**
-	 * returns the read marker for a given file to the specified date for the
-	 * provided user. It returns null, when the marker is not present, i.e.
-	 * no comments were marked as read.
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @param IUser $user
-	 * @return \DateTime|null
-	 * @since 9.0.0
-	 */
-	public function getReadMark($objectType, $objectId, IUser $user) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$resultStatement = $qb->select('marker_datetime')
-			->from('comments_read_markers')
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
-			->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
-			->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
-			->execute();
-
-		$data = $resultStatement->fetch();
-		$resultStatement->closeCursor();
-		if (!$data || is_null($data['marker_datetime'])) {
-			return null;
-		}
-
-		return new \DateTime($data['marker_datetime']);
-	}
-
-	/**
-	 * deletes the read markers on the specified object
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @return bool
-	 * @since 9.0.0
-	 */
-	public function deleteReadMarksOnObject($objectType, $objectId) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments_read_markers')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('object_type', $objectType)
-			->setParameter('object_id', $objectId);
-
-		try {
-			$affectedRows = $query->execute();
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-		return ($affectedRows > 0);
-	}
-
-	/**
-	 * registers an Entity to the manager, so event notifications can be send
-	 * to consumers of the comments infrastructure
-	 *
-	 * @param \Closure $closure
-	 */
-	public function registerEventHandler(\Closure $closure) {
-		$this->eventHandlerClosures[] = $closure;
-		$this->eventHandlers = [];
-	}
-
-	/**
-	 * registers a method that resolves an ID to a display name for a given type
-	 *
-	 * @param string $type
-	 * @param \Closure $closure
-	 * @throws \OutOfBoundsException
-	 * @since 11.0.0
-	 *
-	 * Only one resolver shall be registered per type. Otherwise a
-	 * \OutOfBoundsException has to thrown.
-	 */
-	public function registerDisplayNameResolver($type, \Closure $closure) {
-		if (!is_string($type)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		if (isset($this->displayNameResolvers[$type])) {
-			throw new \OutOfBoundsException('Displayname resolver for this type already registered');
-		}
-		$this->displayNameResolvers[$type] = $closure;
-	}
-
-	/**
-	 * resolves a given ID of a given Type to a display name.
-	 *
-	 * @param string $type
-	 * @param string $id
-	 * @return string
-	 * @throws \OutOfBoundsException
-	 * @since 11.0.0
-	 *
-	 * If a provided type was not registered, an \OutOfBoundsException shall
-	 * be thrown. It is upon the resolver discretion what to return of the
-	 * provided ID is unknown. It must be ensured that a string is returned.
-	 */
-	public function resolveDisplayName($type, $id) {
-		if (!is_string($type)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		if (!isset($this->displayNameResolvers[$type])) {
-			throw new \OutOfBoundsException('No Displayname resolver for this type registered');
-		}
-		return (string)$this->displayNameResolvers[$type]($id);
-	}
-
-	/**
-	 * returns valid, registered entities
-	 *
-	 * @return \OCP\Comments\ICommentsEventHandler[]
-	 */
-	private function getEventHandlers() {
-		if (!empty($this->eventHandlers)) {
-			return $this->eventHandlers;
-		}
-
-		$this->eventHandlers = [];
-		foreach ($this->eventHandlerClosures as $name => $closure) {
-			$entity = $closure();
-			if (!($entity instanceof ICommentsEventHandler)) {
-				throw new \InvalidArgumentException('The given entity does not implement the ICommentsEntity interface');
-			}
-			$this->eventHandlers[$name] = $entity;
-		}
-
-		return $this->eventHandlers;
-	}
-
-	/**
-	 * sends notifications to the registered entities
-	 *
-	 * @param $eventType
-	 * @param IComment $comment
-	 */
-	private function sendEvent($eventType, IComment $comment) {
-		$entities = $this->getEventHandlers();
-		$event = new CommentsEvent($eventType, $comment);
-		foreach ($entities as $entity) {
-			$entity->handle($event);
-		}
-	}
+    /** @var  IDBConnection */
+    protected $dbConn;
+
+    /** @var  ILogger */
+    protected $logger;
+
+    /** @var IConfig */
+    protected $config;
+
+    /** @var IComment[] */
+    protected $commentsCache = [];
+
+    /** @var  \Closure[] */
+    protected $eventHandlerClosures = [];
+
+    /** @var  ICommentsEventHandler[] */
+    protected $eventHandlers = [];
+
+    /** @var \Closure[] */
+    protected $displayNameResolvers = [];
+
+    /**
+     * Manager constructor.
+     *
+     * @param IDBConnection $dbConn
+     * @param ILogger $logger
+     * @param IConfig $config
+     */
+    public function __construct(
+        IDBConnection $dbConn,
+        ILogger $logger,
+        IConfig $config
+    ) {
+        $this->dbConn = $dbConn;
+        $this->logger = $logger;
+        $this->config = $config;
+    }
+
+    /**
+     * converts data base data into PHP native, proper types as defined by
+     * IComment interface.
+     *
+     * @param array $data
+     * @return array
+     */
+    protected function normalizeDatabaseData(array $data) {
+        $data['id'] = strval($data['id']);
+        $data['parent_id'] = strval($data['parent_id']);
+        $data['topmost_parent_id'] = strval($data['topmost_parent_id']);
+        $data['creation_timestamp'] = new \DateTime($data['creation_timestamp']);
+        if (!is_null($data['latest_child_timestamp'])) {
+            $data['latest_child_timestamp'] = new \DateTime($data['latest_child_timestamp']);
+        }
+        $data['children_count'] = intval($data['children_count']);
+        return $data;
+    }
+
+    /**
+     * prepares a comment for an insert or update operation after making sure
+     * all necessary fields have a value assigned.
+     *
+     * @param IComment $comment
+     * @return IComment returns the same updated IComment instance as provided
+     *                  by parameter for convenience
+     * @throws \UnexpectedValueException
+     */
+    protected function prepareCommentForDatabaseWrite(IComment $comment) {
+        if (!$comment->getActorType()
+            || !$comment->getActorId()
+            || !$comment->getObjectType()
+            || !$comment->getObjectId()
+            || !$comment->getVerb()
+        ) {
+            throw new \UnexpectedValueException('Actor, Object and Verb information must be provided for saving');
+        }
+
+        if ($comment->getId() === '') {
+            $comment->setChildrenCount(0);
+            $comment->setLatestChildDateTime(new \DateTime('0000-00-00 00:00:00', new \DateTimeZone('UTC')));
+            $comment->setLatestChildDateTime(null);
+        }
+
+        if (is_null($comment->getCreationDateTime())) {
+            $comment->setCreationDateTime(new \DateTime());
+        }
+
+        if ($comment->getParentId() !== '0') {
+            $comment->setTopmostParentId($this->determineTopmostParentId($comment->getParentId()));
+        } else {
+            $comment->setTopmostParentId('0');
+        }
+
+        $this->cache($comment);
+
+        return $comment;
+    }
+
+    /**
+     * returns the topmost parent id of a given comment identified by ID
+     *
+     * @param string $id
+     * @return string
+     * @throws NotFoundException
+     */
+    protected function determineTopmostParentId($id) {
+        $comment = $this->get($id);
+        if ($comment->getParentId() === '0') {
+            return $comment->getId();
+        } else {
+            return $this->determineTopmostParentId($comment->getId());
+        }
+    }
+
+    /**
+     * updates child information of a comment
+     *
+     * @param string $id
+     * @param \DateTime $cDateTime the date time of the most recent child
+     * @throws NotFoundException
+     */
+    protected function updateChildrenInformation($id, \DateTime $cDateTime) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->select($qb->createFunction('COUNT(`id`)'))
+            ->from('comments')
+            ->where($qb->expr()->eq('parent_id', $qb->createParameter('id')))
+            ->setParameter('id', $id);
+
+        $resultStatement = $query->execute();
+        $data = $resultStatement->fetch(\PDO::FETCH_NUM);
+        $resultStatement->closeCursor();
+        $children = intval($data[0]);
+
+        $comment = $this->get($id);
+        $comment->setChildrenCount($children);
+        $comment->setLatestChildDateTime($cDateTime);
+        $this->save($comment);
+    }
+
+    /**
+     * Tests whether actor or object type and id parameters are acceptable.
+     * Throws exception if not.
+     *
+     * @param string $role
+     * @param string $type
+     * @param string $id
+     * @throws \InvalidArgumentException
+     */
+    protected function checkRoleParameters($role, $type, $id) {
+        if (
+            !is_string($type) || empty($type)
+            || !is_string($id) || empty($id)
+        ) {
+            throw new \InvalidArgumentException($role . ' parameters must be string and not empty');
+        }
+    }
+
+    /**
+     * run-time caches a comment
+     *
+     * @param IComment $comment
+     */
+    protected function cache(IComment $comment) {
+        $id = $comment->getId();
+        if (empty($id)) {
+            return;
+        }
+        $this->commentsCache[strval($id)] = $comment;
+    }
+
+    /**
+     * removes an entry from the comments run time cache
+     *
+     * @param mixed $id the comment's id
+     */
+    protected function uncache($id) {
+        $id = strval($id);
+        if (isset($this->commentsCache[$id])) {
+            unset($this->commentsCache[$id]);
+        }
+    }
+
+    /**
+     * returns a comment instance
+     *
+     * @param string $id the ID of the comment
+     * @return IComment
+     * @throws NotFoundException
+     * @throws \InvalidArgumentException
+     * @since 9.0.0
+     */
+    public function get($id) {
+        if (intval($id) === 0) {
+            throw new \InvalidArgumentException('IDs must be translatable to a number in this implementation.');
+        }
+
+        if (isset($this->commentsCache[$id])) {
+            return $this->commentsCache[$id];
+        }
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $resultStatement = $qb->select('*')
+            ->from('comments')
+            ->where($qb->expr()->eq('id', $qb->createParameter('id')))
+            ->setParameter('id', $id, IQueryBuilder::PARAM_INT)
+            ->execute();
+
+        $data = $resultStatement->fetch();
+        $resultStatement->closeCursor();
+        if (!$data) {
+            throw new NotFoundException();
+        }
+
+        $comment = new Comment($this->normalizeDatabaseData($data));
+        $this->cache($comment);
+        return $comment;
+    }
+
+    /**
+     * returns the comment specified by the id and all it's child comments.
+     * At this point of time, we do only support one level depth.
+     *
+     * @param string $id
+     * @param int $limit max number of entries to return, 0 returns all
+     * @param int $offset the start entry
+     * @return array
+     * @since 9.0.0
+     *
+     * The return array looks like this
+     * [
+     *   'comment' => IComment, // root comment
+     *   'replies' =>
+     *   [
+     *     0 =>
+     *     [
+     *       'comment' => IComment,
+     *       'replies' => []
+     *     ]
+     *     1 =>
+     *     [
+     *       'comment' => IComment,
+     *       'replies'=> []
+     *     ],
+     *     …
+     *   ]
+     * ]
+     */
+    public function getTree($id, $limit = 0, $offset = 0) {
+        $tree = [];
+        $tree['comment'] = $this->get($id);
+        $tree['replies'] = [];
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->select('*')
+            ->from('comments')
+            ->where($qb->expr()->eq('topmost_parent_id', $qb->createParameter('id')))
+            ->orderBy('creation_timestamp', 'DESC')
+            ->setParameter('id', $id);
+
+        if ($limit > 0) {
+            $query->setMaxResults($limit);
+        }
+        if ($offset > 0) {
+            $query->setFirstResult($offset);
+        }
+
+        $resultStatement = $query->execute();
+        while ($data = $resultStatement->fetch()) {
+            $comment = new Comment($this->normalizeDatabaseData($data));
+            $this->cache($comment);
+            $tree['replies'][] = [
+                'comment' => $comment,
+                'replies' => []
+            ];
+        }
+        $resultStatement->closeCursor();
+
+        return $tree;
+    }
+
+    /**
+     * returns comments for a specific object (e.g. a file).
+     *
+     * The sort order is always newest to oldest.
+     *
+     * @param string $objectType the object type, e.g. 'files'
+     * @param string $objectId the id of the object
+     * @param int $limit optional, number of maximum comments to be returned. if
+     * not specified, all comments are returned.
+     * @param int $offset optional, starting point
+     * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
+     * that may be returned
+     * @return IComment[]
+     * @since 9.0.0
+     */
+    public function getForObject(
+        $objectType,
+        $objectId,
+        $limit = 0,
+        $offset = 0,
+        \DateTime $notOlderThan = null
+    ) {
+        $comments = [];
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->select('*')
+            ->from('comments')
+            ->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
+            ->orderBy('creation_timestamp', 'DESC')
+            ->setParameter('type', $objectType)
+            ->setParameter('id', $objectId);
+
+        if ($limit > 0) {
+            $query->setMaxResults($limit);
+        }
+        if ($offset > 0) {
+            $query->setFirstResult($offset);
+        }
+        if (!is_null($notOlderThan)) {
+            $query
+                ->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
+                ->setParameter('notOlderThan', $notOlderThan, 'datetime');
+        }
+
+        $resultStatement = $query->execute();
+        while ($data = $resultStatement->fetch()) {
+            $comment = new Comment($this->normalizeDatabaseData($data));
+            $this->cache($comment);
+            $comments[] = $comment;
+        }
+        $resultStatement->closeCursor();
+
+        return $comments;
+    }
+
+    /**
+     * @param $objectType string the object type, e.g. 'files'
+     * @param $objectId string the id of the object
+     * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
+     * that may be returned
+     * @return Int
+     * @since 9.0.0
+     */
+    public function getNumberOfCommentsForObject($objectType, $objectId, \DateTime $notOlderThan = null) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->select($qb->createFunction('COUNT(`id`)'))
+            ->from('comments')
+            ->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
+            ->setParameter('type', $objectType)
+            ->setParameter('id', $objectId);
+
+        if (!is_null($notOlderThan)) {
+            $query
+                ->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
+                ->setParameter('notOlderThan', $notOlderThan, 'datetime');
+        }
+
+        $resultStatement = $query->execute();
+        $data = $resultStatement->fetch(\PDO::FETCH_NUM);
+        $resultStatement->closeCursor();
+        return intval($data[0]);
+    }
+
+    /**
+     * Get the number of unread comments for all files in a folder
+     *
+     * @param int $folderId
+     * @param IUser $user
+     * @return array [$fileId => $unreadCount]
+     */
+    public function getNumberOfUnreadCommentsForFolder($folderId, IUser $user) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->select('fileid', $qb->createFunction(
+            'COUNT(' . $qb->getColumnName('c.id') . ')')
+        )->from('comments', 'c')
+            ->innerJoin('c', 'filecache', 'f', $qb->expr()->andX(
+                $qb->expr()->eq('c.object_type', $qb->createNamedParameter('files')),
+                $qb->expr()->eq('f.fileid', $qb->expr()->castColumn('c.object_id', IQueryBuilder::PARAM_INT))
+            ))
+            ->leftJoin('c', 'comments_read_markers', 'm', $qb->expr()->andX(
+                $qb->expr()->eq('m.object_type', $qb->createNamedParameter('files')),
+                $qb->expr()->eq('m.object_id', 'c.object_id'),
+                $qb->expr()->eq('m.user_id', $qb->createNamedParameter($user->getUID()))
+            ))
+            ->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($folderId)))
+            ->andWhere($qb->expr()->orX(
+                $qb->expr()->gt('c.creation_timestamp', 'marker_datetime'),
+                $qb->expr()->isNull('marker_datetime')
+            ))
+            ->groupBy('f.fileid');
+
+        $resultStatement = $query->execute();
+        return array_map(function ($count) {
+            return (int)$count;
+        }, $resultStatement->fetchAll(\PDO::FETCH_KEY_PAIR));
+    }
+
+    /**
+     * creates a new comment and returns it. At this point of time, it is not
+     * saved in the used data storage. Use save() after setting other fields
+     * of the comment (e.g. message or verb).
+     *
+     * @param string $actorType the actor type (e.g. 'users')
+     * @param string $actorId a user id
+     * @param string $objectType the object type the comment is attached to
+     * @param string $objectId the object id the comment is attached to
+     * @return IComment
+     * @since 9.0.0
+     */
+    public function create($actorType, $actorId, $objectType, $objectId) {
+        $comment = new Comment();
+        $comment
+            ->setActor($actorType, $actorId)
+            ->setObject($objectType, $objectId);
+        return $comment;
+    }
+
+    /**
+     * permanently deletes the comment specified by the ID
+     *
+     * When the comment has child comments, their parent ID will be changed to
+     * the parent ID of the item that is to be deleted.
+     *
+     * @param string $id
+     * @return bool
+     * @throws \InvalidArgumentException
+     * @since 9.0.0
+     */
+    public function delete($id) {
+        if (!is_string($id)) {
+            throw new \InvalidArgumentException('Parameter must be string');
+        }
+
+        try {
+            $comment = $this->get($id);
+        } catch (\Exception $e) {
+            // Ignore exceptions, we just don't fire a hook then
+            $comment = null;
+        }
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->delete('comments')
+            ->where($qb->expr()->eq('id', $qb->createParameter('id')))
+            ->setParameter('id', $id);
+
+        try {
+            $affectedRows = $query->execute();
+            $this->uncache($id);
+        } catch (DriverException $e) {
+            $this->logger->logException($e, ['app' => 'core_comments']);
+            return false;
+        }
+
+        if ($affectedRows > 0 && $comment instanceof IComment) {
+            $this->sendEvent(CommentsEvent::EVENT_DELETE, $comment);
+        }
+
+        return ($affectedRows > 0);
+    }
+
+    /**
+     * saves the comment permanently
+     *
+     * if the supplied comment has an empty ID, a new entry comment will be
+     * saved and the instance updated with the new ID.
+     *
+     * Otherwise, an existing comment will be updated.
+     *
+     * Throws NotFoundException when a comment that is to be updated does not
+     * exist anymore at this point of time.
+     *
+     * @param IComment $comment
+     * @return bool
+     * @throws NotFoundException
+     * @since 9.0.0
+     */
+    public function save(IComment $comment) {
+        if ($this->prepareCommentForDatabaseWrite($comment)->getId() === '') {
+            $result = $this->insert($comment);
+        } else {
+            $result = $this->update($comment);
+        }
+
+        if ($result && !!$comment->getParentId()) {
+            $this->updateChildrenInformation(
+                $comment->getParentId(),
+                $comment->getCreationDateTime()
+            );
+            $this->cache($comment);
+        }
+
+        return $result;
+    }
+
+    /**
+     * inserts the provided comment in the database
+     *
+     * @param IComment $comment
+     * @return bool
+     */
+    protected function insert(IComment &$comment) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $affectedRows = $qb
+            ->insert('comments')
+            ->values([
+                'parent_id' => $qb->createNamedParameter($comment->getParentId()),
+                'topmost_parent_id' => $qb->createNamedParameter($comment->getTopmostParentId()),
+                'children_count' => $qb->createNamedParameter($comment->getChildrenCount()),
+                'actor_type' => $qb->createNamedParameter($comment->getActorType()),
+                'actor_id' => $qb->createNamedParameter($comment->getActorId()),
+                'message' => $qb->createNamedParameter($comment->getMessage()),
+                'verb' => $qb->createNamedParameter($comment->getVerb()),
+                'creation_timestamp' => $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'),
+                'latest_child_timestamp' => $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'),
+                'object_type' => $qb->createNamedParameter($comment->getObjectType()),
+                'object_id' => $qb->createNamedParameter($comment->getObjectId()),
+            ])
+            ->execute();
+
+        if ($affectedRows > 0) {
+            $comment->setId(strval($qb->getLastInsertId()));
+            $this->sendEvent(CommentsEvent::EVENT_ADD, $comment);
+        }
+
+        return $affectedRows > 0;
+    }
+
+    /**
+     * updates a Comment data row
+     *
+     * @param IComment $comment
+     * @return bool
+     * @throws NotFoundException
+     */
+    protected function update(IComment $comment) {
+        // for properly working preUpdate Events we need the old comments as is
+        // in the DB and overcome caching. Also avoid that outdated information stays.
+        $this->uncache($comment->getId());
+        $this->sendEvent(CommentsEvent::EVENT_PRE_UPDATE, $this->get($comment->getId()));
+        $this->uncache($comment->getId());
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $affectedRows = $qb
+            ->update('comments')
+            ->set('parent_id', $qb->createNamedParameter($comment->getParentId()))
+            ->set('topmost_parent_id', $qb->createNamedParameter($comment->getTopmostParentId()))
+            ->set('children_count', $qb->createNamedParameter($comment->getChildrenCount()))
+            ->set('actor_type', $qb->createNamedParameter($comment->getActorType()))
+            ->set('actor_id', $qb->createNamedParameter($comment->getActorId()))
+            ->set('message', $qb->createNamedParameter($comment->getMessage()))
+            ->set('verb', $qb->createNamedParameter($comment->getVerb()))
+            ->set('creation_timestamp', $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'))
+            ->set('latest_child_timestamp', $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'))
+            ->set('object_type', $qb->createNamedParameter($comment->getObjectType()))
+            ->set('object_id', $qb->createNamedParameter($comment->getObjectId()))
+            ->where($qb->expr()->eq('id', $qb->createParameter('id')))
+            ->setParameter('id', $comment->getId())
+            ->execute();
+
+        if ($affectedRows === 0) {
+            throw new NotFoundException('Comment to update does ceased to exist');
+        }
+
+        $this->sendEvent(CommentsEvent::EVENT_UPDATE, $comment);
+
+        return $affectedRows > 0;
+    }
+
+    /**
+     * removes references to specific actor (e.g. on user delete) of a comment.
+     * The comment itself must not get lost/deleted.
+     *
+     * @param string $actorType the actor type (e.g. 'users')
+     * @param string $actorId a user id
+     * @return boolean
+     * @since 9.0.0
+     */
+    public function deleteReferencesOfActor($actorType, $actorId) {
+        $this->checkRoleParameters('Actor', $actorType, $actorId);
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $affectedRows = $qb
+            ->update('comments')
+            ->set('actor_type', $qb->createNamedParameter(ICommentsManager::DELETED_USER))
+            ->set('actor_id', $qb->createNamedParameter(ICommentsManager::DELETED_USER))
+            ->where($qb->expr()->eq('actor_type', $qb->createParameter('type')))
+            ->andWhere($qb->expr()->eq('actor_id', $qb->createParameter('id')))
+            ->setParameter('type', $actorType)
+            ->setParameter('id', $actorId)
+            ->execute();
+
+        $this->commentsCache = [];
+
+        return is_int($affectedRows);
+    }
+
+    /**
+     * deletes all comments made of a specific object (e.g. on file delete)
+     *
+     * @param string $objectType the object type (e.g. 'files')
+     * @param string $objectId e.g. the file id
+     * @return boolean
+     * @since 9.0.0
+     */
+    public function deleteCommentsAtObject($objectType, $objectId) {
+        $this->checkRoleParameters('Object', $objectType, $objectId);
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $affectedRows = $qb
+            ->delete('comments')
+            ->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
+            ->setParameter('type', $objectType)
+            ->setParameter('id', $objectId)
+            ->execute();
+
+        $this->commentsCache = [];
+
+        return is_int($affectedRows);
+    }
+
+    /**
+     * deletes the read markers for the specified user
+     *
+     * @param \OCP\IUser $user
+     * @return bool
+     * @since 9.0.0
+     */
+    public function deleteReadMarksFromUser(IUser $user) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->delete('comments_read_markers')
+            ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
+            ->setParameter('user_id', $user->getUID());
+
+        try {
+            $affectedRows = $query->execute();
+        } catch (DriverException $e) {
+            $this->logger->logException($e, ['app' => 'core_comments']);
+            return false;
+        }
+        return ($affectedRows > 0);
+    }
+
+    /**
+     * sets the read marker for a given file to the specified date for the
+     * provided user
+     *
+     * @param string $objectType
+     * @param string $objectId
+     * @param \DateTime $dateTime
+     * @param IUser $user
+     * @since 9.0.0
+     */
+    public function setReadMark($objectType, $objectId, \DateTime $dateTime, IUser $user) {
+        $this->checkRoleParameters('Object', $objectType, $objectId);
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $values = [
+            'user_id' => $qb->createNamedParameter($user->getUID()),
+            'marker_datetime' => $qb->createNamedParameter($dateTime, 'datetime'),
+            'object_type' => $qb->createNamedParameter($objectType),
+            'object_id' => $qb->createNamedParameter($objectId),
+        ];
+
+        // Strategy: try to update, if this does not return affected rows, do an insert.
+        $affectedRows = $qb
+            ->update('comments_read_markers')
+            ->set('user_id', $values['user_id'])
+            ->set('marker_datetime', $values['marker_datetime'])
+            ->set('object_type', $values['object_type'])
+            ->set('object_id', $values['object_id'])
+            ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
+            ->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
+            ->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
+            ->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
+            ->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
+            ->execute();
+
+        if ($affectedRows > 0) {
+            return;
+        }
+
+        $qb->insert('comments_read_markers')
+            ->values($values)
+            ->execute();
+    }
+
+    /**
+     * returns the read marker for a given file to the specified date for the
+     * provided user. It returns null, when the marker is not present, i.e.
+     * no comments were marked as read.
+     *
+     * @param string $objectType
+     * @param string $objectId
+     * @param IUser $user
+     * @return \DateTime|null
+     * @since 9.0.0
+     */
+    public function getReadMark($objectType, $objectId, IUser $user) {
+        $qb = $this->dbConn->getQueryBuilder();
+        $resultStatement = $qb->select('marker_datetime')
+            ->from('comments_read_markers')
+            ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
+            ->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
+            ->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
+            ->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
+            ->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
+            ->execute();
+
+        $data = $resultStatement->fetch();
+        $resultStatement->closeCursor();
+        if (!$data || is_null($data['marker_datetime'])) {
+            return null;
+        }
+
+        return new \DateTime($data['marker_datetime']);
+    }
+
+    /**
+     * deletes the read markers on the specified object
+     *
+     * @param string $objectType
+     * @param string $objectId
+     * @return bool
+     * @since 9.0.0
+     */
+    public function deleteReadMarksOnObject($objectType, $objectId) {
+        $this->checkRoleParameters('Object', $objectType, $objectId);
+
+        $qb = $this->dbConn->getQueryBuilder();
+        $query = $qb->delete('comments_read_markers')
+            ->where($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
+            ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
+            ->setParameter('object_type', $objectType)
+            ->setParameter('object_id', $objectId);
+
+        try {
+            $affectedRows = $query->execute();
+        } catch (DriverException $e) {
+            $this->logger->logException($e, ['app' => 'core_comments']);
+            return false;
+        }
+        return ($affectedRows > 0);
+    }
+
+    /**
+     * registers an Entity to the manager, so event notifications can be send
+     * to consumers of the comments infrastructure
+     *
+     * @param \Closure $closure
+     */
+    public function registerEventHandler(\Closure $closure) {
+        $this->eventHandlerClosures[] = $closure;
+        $this->eventHandlers = [];
+    }
+
+    /**
+     * registers a method that resolves an ID to a display name for a given type
+     *
+     * @param string $type
+     * @param \Closure $closure
+     * @throws \OutOfBoundsException
+     * @since 11.0.0
+     *
+     * Only one resolver shall be registered per type. Otherwise a
+     * \OutOfBoundsException has to thrown.
+     */
+    public function registerDisplayNameResolver($type, \Closure $closure) {
+        if (!is_string($type)) {
+            throw new \InvalidArgumentException('String expected.');
+        }
+        if (isset($this->displayNameResolvers[$type])) {
+            throw new \OutOfBoundsException('Displayname resolver for this type already registered');
+        }
+        $this->displayNameResolvers[$type] = $closure;
+    }
+
+    /**
+     * resolves a given ID of a given Type to a display name.
+     *
+     * @param string $type
+     * @param string $id
+     * @return string
+     * @throws \OutOfBoundsException
+     * @since 11.0.0
+     *
+     * If a provided type was not registered, an \OutOfBoundsException shall
+     * be thrown. It is upon the resolver discretion what to return of the
+     * provided ID is unknown. It must be ensured that a string is returned.
+     */
+    public function resolveDisplayName($type, $id) {
+        if (!is_string($type)) {
+            throw new \InvalidArgumentException('String expected.');
+        }
+        if (!isset($this->displayNameResolvers[$type])) {
+            throw new \OutOfBoundsException('No Displayname resolver for this type registered');
+        }
+        return (string)$this->displayNameResolvers[$type]($id);
+    }
+
+    /**
+     * returns valid, registered entities
+     *
+     * @return \OCP\Comments\ICommentsEventHandler[]
+     */
+    private function getEventHandlers() {
+        if (!empty($this->eventHandlers)) {
+            return $this->eventHandlers;
+        }
+
+        $this->eventHandlers = [];
+        foreach ($this->eventHandlerClosures as $name => $closure) {
+            $entity = $closure();
+            if (!($entity instanceof ICommentsEventHandler)) {
+                throw new \InvalidArgumentException('The given entity does not implement the ICommentsEntity interface');
+            }
+            $this->eventHandlers[$name] = $entity;
+        }
+
+        return $this->eventHandlers;
+    }
+
+    /**
+     * sends notifications to the registered entities
+     *
+     * @param $eventType
+     * @param IComment $comment
+     */
+    private function sendEvent($eventType, IComment $comment) {
+        $entities = $this->getEventHandlers();
+        $event = new CommentsEvent($eventType, $comment);
+        foreach ($entities as $entity) {
+            $entity->handle($event);
+        }
+    }
 }

Spacing +6 added lines, -6 removed lines

@@ -191,7 +191,7 @@ 
 			!is_string($type) || empty($type)
 			|| !is_string($id) || empty($id)
 		) {
-			throw new \InvalidArgumentException($role . ' parameters must be string and not empty');
+			throw new \InvalidArgumentException($role.' parameters must be string and not empty');
 		}
 	}
 
@@ -413,7 +413,7 @@ 
 	public function getNumberOfUnreadCommentsForFolder($folderId, IUser $user) {
 		$qb = $this->dbConn->getQueryBuilder();
 		$query = $qb->select('fileid', $qb->createFunction(
-			'COUNT(' . $qb->getColumnName('c.id') . ')')
+			'COUNT('.$qb->getColumnName('c.id').')')
 		)->from('comments', 'c')
 			->innerJoin('c', 'filecache', 'f', $qb->expr()->andX(
 				$qb->expr()->eq('c.object_type', $qb->createNamedParameter('files')),
@@ -432,8 +432,8 @@ 
 			->groupBy('f.fileid');
 
 		$resultStatement = $query->execute();
-		return array_map(function ($count) {
-			return (int)$count;
+		return array_map(function($count) {
+			return (int) $count;
 		}, $resultStatement->fetchAll(\PDO::FETCH_KEY_PAIR));
 	}
 
@@ -540,7 +540,7 @@ 
 	 * @param IComment $comment
 	 * @return bool
 	 */
-	protected function insert(IComment &$comment) {
+	protected function insert(IComment & $comment) {
 		$qb = $this->dbConn->getQueryBuilder();
 		$affectedRows = $qb
 			->insert('comments')
@@ -839,7 +839,7 @@ 
 		if (!isset($this->displayNameResolvers[$type])) {
 			throw new \OutOfBoundsException('No Displayname resolver for this type registered');
 		}
-		return (string)$this->displayNameResolvers[$type]($id);
+		return (string) $this->displayNameResolvers[$type]($id);
 	}
 
 	/**

lib/private/DB/Connection.php

Doc Comments +2 added lines, -2 removed lines

@@ -173,7 +173,7 @@ 
 	 * If an SQLLogger is configured, the execution is logged.
 	 *
 	 * @param string                                      $query  The SQL query to execute.
-	 * @param array                                       $params The parameters to bind to the query, if any.
+	 * @param string[]                                       $params The parameters to bind to the query, if any.
 	 * @param array                                       $types  The types the previous parameters are in.
 	 * @param \Doctrine\DBAL\Cache\QueryCacheProfile|null $qcp    The query cache profile, optional.
 	 *
@@ -218,7 +218,7 @@ 
 	 * columns or sequences.
 	 *
 	 * @param string $seqName Name of the sequence object from which the ID should be returned.
-	 * @return string A string representation of the last inserted ID.
+	 * @return integer A string representation of the last inserted ID.
 	 */
 	public function lastInsertId($seqName = null) {
 		if ($seqName) {

Spacing +13 added lines, -13 removed lines

@@ -56,7 +56,7 @@ 
 			return parent::connect();
 		} catch (DBALException $e) {
 			// throw a new exception to prevent leaking info from the stacktrace
-			throw new DBALException('Failed to connect to the database: ' . $e->getMessage(), $e->getCode());
+			throw new DBALException('Failed to connect to the database: '.$e->getMessage(), $e->getCode());
 		}
 	}
 
@@ -104,7 +104,7 @@ 
 		// 0 is the method where we use `getCallerBacktrace`
 		// 1 is the target method which uses the method we want to log
 		if (isset($traces[1])) {
-			return $traces[1]['file'] . ':' . $traces[1]['line'];
+			return $traces[1]['file'].':'.$traces[1]['line'];
 		}
 
 		return '';
@@ -150,7 +150,7 @@ 
 	 * @param int $offset
 	 * @return \Doctrine\DBAL\Driver\Statement The prepared statement.
 	 */
-	public function prepare( $statement, $limit=null, $offset=null ) {
+	public function prepare($statement, $limit = null, $offset = null) {
 		if ($limit === -1) {
 			$limit = null;
 		}
@@ -161,7 +161,7 @@ 
 		$statement = $this->replaceTablePrefix($statement);
 		$statement = $this->adapter->fixupStatement($statement);
 
-		if(\OC::$server->getSystemConfig()->getValue( 'log_query', false)) {
+		if (\OC::$server->getSystemConfig()->getValue('log_query', false)) {
 			\OCP\Util::writeLog('core', 'DB prepare : '.$statement, \OCP\Util::DEBUG);
 		}
 		return parent::prepare($statement);
@@ -318,7 +318,7 @@ 
 			throw new \BadMethodCallException('Can not lock a new table until the previous lock is released.');
 		}
 
-		$tableName = $this->tablePrefix . $tableName;
+		$tableName = $this->tablePrefix.$tableName;
 		$this->lockedTable = $tableName;
 		$this->adapter->lockTable($tableName);
 	}
@@ -339,11 +339,11 @@ 
 	 * @return string
 	 */
 	public function getError() {
-		$msg = $this->errorCode() . ': ';
+		$msg = $this->errorCode().': ';
 		$errorInfo = $this->errorInfo();
 		if (is_array($errorInfo)) {
-			$msg .= 'SQLSTATE = '.$errorInfo[0] . ', ';
-			$msg .= 'Driver Code = '.$errorInfo[1] . ', ';
+			$msg .= 'SQLSTATE = '.$errorInfo[0].', ';
+			$msg .= 'Driver Code = '.$errorInfo[1].', ';
 			$msg .= 'Driver Message = '.$errorInfo[2];
 		}
 		return $msg;
@@ -355,9 +355,9 @@ 
 	 * @param string $table table name without the prefix
 	 */
 	public function dropTable($table) {
-		$table = $this->tablePrefix . trim($table);
+		$table = $this->tablePrefix.trim($table);
 		$schema = $this->getSchemaManager();
-		if($schema->tablesExist(array($table))) {
+		if ($schema->tablesExist(array($table))) {
 			$schema->dropTable($table);
 		}
 	}
@@ -368,8 +368,8 @@ 
 	 * @param string $table table name without the prefix
 	 * @return bool
 	 */
-	public function tableExists($table){
-		$table = $this->tablePrefix . trim($table);
+	public function tableExists($table) {
+		$table = $this->tablePrefix.trim($table);
 		$schema = $this->getSchemaManager();
 		return $schema->tablesExist(array($table));
 	}
@@ -380,7 +380,7 @@ 
 	 * @return string
 	 */
 	protected function replaceTablePrefix($statement) {
-		return str_replace( '*PREFIX*', $this->tablePrefix, $statement );
+		return str_replace('*PREFIX*', $this->tablePrefix, $statement);
 	}
 
 	/**

Indentation +380 added lines, -380 removed lines

@@ -41,384 +41,384 @@
 use OCP\PreConditionNotMetException;
 
 class Connection extends \Doctrine\DBAL\Connection implements IDBConnection {
-	/**
-	 * @var string $tablePrefix
-	 */
-	protected $tablePrefix;
-
-	/**
-	 * @var \OC\DB\Adapter $adapter
-	 */
-	protected $adapter;
-
-	protected $lockedTable = null;
-
-	public function connect() {
-		try {
-			return parent::connect();
-		} catch (DBALException $e) {
-			// throw a new exception to prevent leaking info from the stacktrace
-			throw new DBALException('Failed to connect to the database: ' . $e->getMessage(), $e->getCode());
-		}
-	}
-
-	/**
-	 * Returns a QueryBuilder for the connection.
-	 *
-	 * @return \OCP\DB\QueryBuilder\IQueryBuilder
-	 */
-	public function getQueryBuilder() {
-		return new QueryBuilder(
-			$this,
-			\OC::$server->getSystemConfig(),
-			\OC::$server->getLogger()
-		);
-	}
-
-	/**
-	 * Gets the QueryBuilder for the connection.
-	 *
-	 * @return \Doctrine\DBAL\Query\QueryBuilder
-	 * @deprecated please use $this->getQueryBuilder() instead
-	 */
-	public function createQueryBuilder() {
-		$backtrace = $this->getCallerBacktrace();
-		\OC::$server->getLogger()->debug('Doctrine QueryBuilder retrieved in {backtrace}', ['app' => 'core', 'backtrace' => $backtrace]);
-		return parent::createQueryBuilder();
-	}
-
-	/**
-	 * Gets the ExpressionBuilder for the connection.
-	 *
-	 * @return \Doctrine\DBAL\Query\Expression\ExpressionBuilder
-	 * @deprecated please use $this->getQueryBuilder()->expr() instead
-	 */
-	public function getExpressionBuilder() {
-		$backtrace = $this->getCallerBacktrace();
-		\OC::$server->getLogger()->debug('Doctrine ExpressionBuilder retrieved in {backtrace}', ['app' => 'core', 'backtrace' => $backtrace]);
-		return parent::getExpressionBuilder();
-	}
-
-	/**
-	 * Get the file and line that called the method where `getCallerBacktrace()` was used
-	 *
-	 * @return string
-	 */
-	protected function getCallerBacktrace() {
-		$traces = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
-
-		// 0 is the method where we use `getCallerBacktrace`
-		// 1 is the target method which uses the method we want to log
-		if (isset($traces[1])) {
-			return $traces[1]['file'] . ':' . $traces[1]['line'];
-		}
-
-		return '';
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getPrefix() {
-		return $this->tablePrefix;
-	}
-
-	/**
-	 * Initializes a new instance of the Connection class.
-	 *
-	 * @param array $params  The connection parameters.
-	 * @param \Doctrine\DBAL\Driver $driver
-	 * @param \Doctrine\DBAL\Configuration $config
-	 * @param \Doctrine\Common\EventManager $eventManager
-	 * @throws \Exception
-	 */
-	public function __construct(array $params, Driver $driver, Configuration $config = null,
-		EventManager $eventManager = null)
-	{
-		if (!isset($params['adapter'])) {
-			throw new \Exception('adapter not set');
-		}
-		if (!isset($params['tablePrefix'])) {
-			throw new \Exception('tablePrefix not set');
-		}
-		parent::__construct($params, $driver, $config, $eventManager);
-		$this->adapter = new $params['adapter']($this);
-		$this->tablePrefix = $params['tablePrefix'];
-
-		parent::setTransactionIsolation(parent::TRANSACTION_READ_COMMITTED);
-	}
-
-	/**
-	 * Prepares an SQL statement.
-	 *
-	 * @param string $statement The SQL statement to prepare.
-	 * @param int $limit
-	 * @param int $offset
-	 * @return \Doctrine\DBAL\Driver\Statement The prepared statement.
-	 */
-	public function prepare( $statement, $limit=null, $offset=null ) {
-		if ($limit === -1) {
-			$limit = null;
-		}
-		if (!is_null($limit)) {
-			$platform = $this->getDatabasePlatform();
-			$statement = $platform->modifyLimitQuery($statement, $limit, $offset);
-		}
-		$statement = $this->replaceTablePrefix($statement);
-		$statement = $this->adapter->fixupStatement($statement);
-
-		if(\OC::$server->getSystemConfig()->getValue( 'log_query', false)) {
-			\OCP\Util::writeLog('core', 'DB prepare : '.$statement, \OCP\Util::DEBUG);
-		}
-		return parent::prepare($statement);
-	}
-
-	/**
-	 * Executes an, optionally parametrized, SQL query.
-	 *
-	 * If the query is parametrized, a prepared statement is used.
-	 * If an SQLLogger is configured, the execution is logged.
-	 *
-	 * @param string                                      $query  The SQL query to execute.
-	 * @param array                                       $params The parameters to bind to the query, if any.
-	 * @param array                                       $types  The types the previous parameters are in.
-	 * @param \Doctrine\DBAL\Cache\QueryCacheProfile|null $qcp    The query cache profile, optional.
-	 *
-	 * @return \Doctrine\DBAL\Driver\Statement The executed statement.
-	 *
-	 * @throws \Doctrine\DBAL\DBALException
-	 */
-	public function executeQuery($query, array $params = array(), $types = array(), QueryCacheProfile $qcp = null)
-	{
-		$query = $this->replaceTablePrefix($query);
-		$query = $this->adapter->fixupStatement($query);
-		return parent::executeQuery($query, $params, $types, $qcp);
-	}
-
-	/**
-	 * Executes an SQL INSERT/UPDATE/DELETE query with the given parameters
-	 * and returns the number of affected rows.
-	 *
-	 * This method supports PDO binding types as well as DBAL mapping types.
-	 *
-	 * @param string $query  The SQL query.
-	 * @param array  $params The query parameters.
-	 * @param array  $types  The parameter types.
-	 *
-	 * @return integer The number of affected rows.
-	 *
-	 * @throws \Doctrine\DBAL\DBALException
-	 */
-	public function executeUpdate($query, array $params = array(), array $types = array())
-	{
-		$query = $this->replaceTablePrefix($query);
-		$query = $this->adapter->fixupStatement($query);
-		return parent::executeUpdate($query, $params, $types);
-	}
-
-	/**
-	 * Returns the ID of the last inserted row, or the last value from a sequence object,
-	 * depending on the underlying driver.
-	 *
-	 * Note: This method may not return a meaningful or consistent result across different drivers,
-	 * because the underlying database may not even support the notion of AUTO_INCREMENT/IDENTITY
-	 * columns or sequences.
-	 *
-	 * @param string $seqName Name of the sequence object from which the ID should be returned.
-	 * @return string A string representation of the last inserted ID.
-	 */
-	public function lastInsertId($seqName = null) {
-		if ($seqName) {
-			$seqName = $this->replaceTablePrefix($seqName);
-		}
-		return $this->adapter->lastInsertId($seqName);
-	}
-
-	// internal use
-	public function realLastInsertId($seqName = null) {
-		return parent::lastInsertId($seqName);
-	}
-
-	/**
-	 * Insert a row if the matching row does not exists.
-	 *
-	 * @param string $table The table name (will replace *PREFIX* with the actual prefix)
-	 * @param array $input data that should be inserted into the table  (column name => value)
-	 * @param array|null $compare List of values that should be checked for "if not exists"
-	 *				If this is null or an empty array, all keys of $input will be compared
-	 *				Please note: text fields (clob) must not be used in the compare array
-	 * @return int number of inserted rows
-	 * @throws \Doctrine\DBAL\DBALException
-	 */
-	public function insertIfNotExist($table, $input, array $compare = null) {
-		return $this->adapter->insertIfNotExist($table, $input, $compare);
-	}
-
-	private function getType($value) {
-		if (is_bool($value)) {
-			return IQueryBuilder::PARAM_BOOL;
-		} else if (is_int($value)) {
-			return IQueryBuilder::PARAM_INT;
-		} else {
-			return IQueryBuilder::PARAM_STR;
-		}
-	}
-
-	/**
-	 * Insert or update a row value
-	 *
-	 * @param string $table
-	 * @param array $keys (column name => value)
-	 * @param array $values (column name => value)
-	 * @param array $updatePreconditionValues ensure values match preconditions (column name => value)
-	 * @return int number of new rows
-	 * @throws \Doctrine\DBAL\DBALException
-	 * @throws PreConditionNotMetException
-	 */
-	public function setValues($table, array $keys, array $values, array $updatePreconditionValues = []) {
-		try {
-			$insertQb = $this->getQueryBuilder();
-			$insertQb->insert($table)
-				->values(
-					array_map(function($value) use ($insertQb) {
-						return $insertQb->createNamedParameter($value, $this->getType($value));
-					}, array_merge($keys, $values))
-				);
-			return $insertQb->execute();
-		} catch (ConstraintViolationException $e) {
-			// value already exists, try update
-			$updateQb = $this->getQueryBuilder();
-			$updateQb->update($table);
-			foreach ($values as $name => $value) {
-				$updateQb->set($name, $updateQb->createNamedParameter($value, $this->getType($value)));
-			}
-			$where = $updateQb->expr()->andX();
-			$whereValues = array_merge($keys, $updatePreconditionValues);
-			foreach ($whereValues as $name => $value) {
-				$where->add($updateQb->expr()->eq(
-					$name,
-					$updateQb->createNamedParameter($value, $this->getType($value)),
-					$this->getType($value)
-				));
-			}
-			$updateQb->where($where);
-			$affected = $updateQb->execute();
-
-			if ($affected === 0 && !empty($updatePreconditionValues)) {
-				throw new PreConditionNotMetException();
-			}
-
-			return 0;
-		}
-	}
-
-	/**
-	 * Create an exclusive read+write lock on a table
-	 *
-	 * @param string $tableName
-	 * @throws \BadMethodCallException When trying to acquire a second lock
-	 * @since 9.1.0
-	 */
-	public function lockTable($tableName) {
-		if ($this->lockedTable !== null) {
-			throw new \BadMethodCallException('Can not lock a new table until the previous lock is released.');
-		}
-
-		$tableName = $this->tablePrefix . $tableName;
-		$this->lockedTable = $tableName;
-		$this->adapter->lockTable($tableName);
-	}
-
-	/**
-	 * Release a previous acquired lock again
-	 *
-	 * @since 9.1.0
-	 */
-	public function unlockTable() {
-		$this->adapter->unlockTable();
-		$this->lockedTable = null;
-	}
-
-	/**
-	 * returns the error code and message as a string for logging
-	 * works with DoctrineException
-	 * @return string
-	 */
-	public function getError() {
-		$msg = $this->errorCode() . ': ';
-		$errorInfo = $this->errorInfo();
-		if (is_array($errorInfo)) {
-			$msg .= 'SQLSTATE = '.$errorInfo[0] . ', ';
-			$msg .= 'Driver Code = '.$errorInfo[1] . ', ';
-			$msg .= 'Driver Message = '.$errorInfo[2];
-		}
-		return $msg;
-	}
-
-	/**
-	 * Drop a table from the database if it exists
-	 *
-	 * @param string $table table name without the prefix
-	 */
-	public function dropTable($table) {
-		$table = $this->tablePrefix . trim($table);
-		$schema = $this->getSchemaManager();
-		if($schema->tablesExist(array($table))) {
-			$schema->dropTable($table);
-		}
-	}
-
-	/**
-	 * Check if a table exists
-	 *
-	 * @param string $table table name without the prefix
-	 * @return bool
-	 */
-	public function tableExists($table){
-		$table = $this->tablePrefix . trim($table);
-		$schema = $this->getSchemaManager();
-		return $schema->tablesExist(array($table));
-	}
-
-	// internal use
-	/**
-	 * @param string $statement
-	 * @return string
-	 */
-	protected function replaceTablePrefix($statement) {
-		return str_replace( '*PREFIX*', $this->tablePrefix, $statement );
-	}
-
-	/**
-	 * Check if a transaction is active
-	 *
-	 * @return bool
-	 * @since 8.2.0
-	 */
-	public function inTransaction() {
-		return $this->getTransactionNestingLevel() > 0;
-	}
-
-	/**
-	 * Espace a parameter to be used in a LIKE query
-	 *
-	 * @param string $param
-	 * @return string
-	 */
-	public function escapeLikeParameter($param) {
-		return addcslashes($param, '\\_%');
-	}
-
-	/**
-	 * Check whether or not the current database support 4byte wide unicode
-	 *
-	 * @return bool
-	 * @since 11.0.0
-	 */
-	public function supports4ByteText() {
-		if (!$this->getDatabasePlatform() instanceof MySqlPlatform) {
-			return true;
-		}
-		return $this->getParams()['charset'] === 'utf8mb4';
-	}
+    /**
+     * @var string $tablePrefix
+     */
+    protected $tablePrefix;
+
+    /**
+     * @var \OC\DB\Adapter $adapter
+     */
+    protected $adapter;
+
+    protected $lockedTable = null;
+
+    public function connect() {
+        try {
+            return parent::connect();
+        } catch (DBALException $e) {
+            // throw a new exception to prevent leaking info from the stacktrace
+            throw new DBALException('Failed to connect to the database: ' . $e->getMessage(), $e->getCode());
+        }
+    }
+
+    /**
+     * Returns a QueryBuilder for the connection.
+     *
+     * @return \OCP\DB\QueryBuilder\IQueryBuilder
+     */
+    public function getQueryBuilder() {
+        return new QueryBuilder(
+            $this,
+            \OC::$server->getSystemConfig(),
+            \OC::$server->getLogger()
+        );
+    }
+
+    /**
+     * Gets the QueryBuilder for the connection.
+     *
+     * @return \Doctrine\DBAL\Query\QueryBuilder
+     * @deprecated please use $this->getQueryBuilder() instead
+     */
+    public function createQueryBuilder() {
+        $backtrace = $this->getCallerBacktrace();
+        \OC::$server->getLogger()->debug('Doctrine QueryBuilder retrieved in {backtrace}', ['app' => 'core', 'backtrace' => $backtrace]);
+        return parent::createQueryBuilder();
+    }
+
+    /**
+     * Gets the ExpressionBuilder for the connection.
+     *
+     * @return \Doctrine\DBAL\Query\Expression\ExpressionBuilder
+     * @deprecated please use $this->getQueryBuilder()->expr() instead
+     */
+    public function getExpressionBuilder() {
+        $backtrace = $this->getCallerBacktrace();
+        \OC::$server->getLogger()->debug('Doctrine ExpressionBuilder retrieved in {backtrace}', ['app' => 'core', 'backtrace' => $backtrace]);
+        return parent::getExpressionBuilder();
+    }
+
+    /**
+     * Get the file and line that called the method where `getCallerBacktrace()` was used
+     *
+     * @return string
+     */
+    protected function getCallerBacktrace() {
+        $traces = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
+
+        // 0 is the method where we use `getCallerBacktrace`
+        // 1 is the target method which uses the method we want to log
+        if (isset($traces[1])) {
+            return $traces[1]['file'] . ':' . $traces[1]['line'];
+        }
+
+        return '';
+    }
+
+    /**
+     * @return string
+     */
+    public function getPrefix() {
+        return $this->tablePrefix;
+    }
+
+    /**
+     * Initializes a new instance of the Connection class.
+     *
+     * @param array $params  The connection parameters.
+     * @param \Doctrine\DBAL\Driver $driver
+     * @param \Doctrine\DBAL\Configuration $config
+     * @param \Doctrine\Common\EventManager $eventManager
+     * @throws \Exception
+     */
+    public function __construct(array $params, Driver $driver, Configuration $config = null,
+        EventManager $eventManager = null)
+    {
+        if (!isset($params['adapter'])) {
+            throw new \Exception('adapter not set');
+        }
+        if (!isset($params['tablePrefix'])) {
+            throw new \Exception('tablePrefix not set');
+        }
+        parent::__construct($params, $driver, $config, $eventManager);
+        $this->adapter = new $params['adapter']($this);
+        $this->tablePrefix = $params['tablePrefix'];
+
+        parent::setTransactionIsolation(parent::TRANSACTION_READ_COMMITTED);
+    }
+
+    /**
+     * Prepares an SQL statement.
+     *
+     * @param string $statement The SQL statement to prepare.
+     * @param int $limit
+     * @param int $offset
+     * @return \Doctrine\DBAL\Driver\Statement The prepared statement.
+     */
+    public function prepare( $statement, $limit=null, $offset=null ) {
+        if ($limit === -1) {
+            $limit = null;
+        }
+        if (!is_null($limit)) {
+            $platform = $this->getDatabasePlatform();
+            $statement = $platform->modifyLimitQuery($statement, $limit, $offset);
+        }
+        $statement = $this->replaceTablePrefix($statement);
+        $statement = $this->adapter->fixupStatement($statement);
+
+        if(\OC::$server->getSystemConfig()->getValue( 'log_query', false)) {
+            \OCP\Util::writeLog('core', 'DB prepare : '.$statement, \OCP\Util::DEBUG);
+        }
+        return parent::prepare($statement);
+    }
+
+    /**
+     * Executes an, optionally parametrized, SQL query.
+     *
+     * If the query is parametrized, a prepared statement is used.
+     * If an SQLLogger is configured, the execution is logged.
+     *
+     * @param string                                      $query  The SQL query to execute.
+     * @param array                                       $params The parameters to bind to the query, if any.
+     * @param array                                       $types  The types the previous parameters are in.
+     * @param \Doctrine\DBAL\Cache\QueryCacheProfile|null $qcp    The query cache profile, optional.
+     *
+     * @return \Doctrine\DBAL\Driver\Statement The executed statement.
+     *
+     * @throws \Doctrine\DBAL\DBALException
+     */
+    public function executeQuery($query, array $params = array(), $types = array(), QueryCacheProfile $qcp = null)
+    {
+        $query = $this->replaceTablePrefix($query);
+        $query = $this->adapter->fixupStatement($query);
+        return parent::executeQuery($query, $params, $types, $qcp);
+    }
+
+    /**
+     * Executes an SQL INSERT/UPDATE/DELETE query with the given parameters
+     * and returns the number of affected rows.
+     *
+     * This method supports PDO binding types as well as DBAL mapping types.
+     *
+     * @param string $query  The SQL query.
+     * @param array  $params The query parameters.
+     * @param array  $types  The parameter types.
+     *
+     * @return integer The number of affected rows.
+     *
+     * @throws \Doctrine\DBAL\DBALException
+     */
+    public function executeUpdate($query, array $params = array(), array $types = array())
+    {
+        $query = $this->replaceTablePrefix($query);
+        $query = $this->adapter->fixupStatement($query);
+        return parent::executeUpdate($query, $params, $types);
+    }
+
+    /**
+     * Returns the ID of the last inserted row, or the last value from a sequence object,
+     * depending on the underlying driver.
+     *
+     * Note: This method may not return a meaningful or consistent result across different drivers,
+     * because the underlying database may not even support the notion of AUTO_INCREMENT/IDENTITY
+     * columns or sequences.
+     *
+     * @param string $seqName Name of the sequence object from which the ID should be returned.
+     * @return string A string representation of the last inserted ID.
+     */
+    public function lastInsertId($seqName = null) {
+        if ($seqName) {
+            $seqName = $this->replaceTablePrefix($seqName);
+        }
+        return $this->adapter->lastInsertId($seqName);
+    }
+
+    // internal use
+    public function realLastInsertId($seqName = null) {
+        return parent::lastInsertId($seqName);
+    }
+
+    /**
+     * Insert a row if the matching row does not exists.
+     *
+     * @param string $table The table name (will replace *PREFIX* with the actual prefix)
+     * @param array $input data that should be inserted into the table  (column name => value)
+     * @param array|null $compare List of values that should be checked for "if not exists"
+     *				If this is null or an empty array, all keys of $input will be compared
+     *				Please note: text fields (clob) must not be used in the compare array
+     * @return int number of inserted rows
+     * @throws \Doctrine\DBAL\DBALException
+     */
+    public function insertIfNotExist($table, $input, array $compare = null) {
+        return $this->adapter->insertIfNotExist($table, $input, $compare);
+    }
+
+    private function getType($value) {
+        if (is_bool($value)) {
+            return IQueryBuilder::PARAM_BOOL;
+        } else if (is_int($value)) {
+            return IQueryBuilder::PARAM_INT;
+        } else {
+            return IQueryBuilder::PARAM_STR;
+        }
+    }
+
+    /**
+     * Insert or update a row value
+     *
+     * @param string $table
+     * @param array $keys (column name => value)
+     * @param array $values (column name => value)
+     * @param array $updatePreconditionValues ensure values match preconditions (column name => value)
+     * @return int number of new rows
+     * @throws \Doctrine\DBAL\DBALException
+     * @throws PreConditionNotMetException
+     */
+    public function setValues($table, array $keys, array $values, array $updatePreconditionValues = []) {
+        try {
+            $insertQb = $this->getQueryBuilder();
+            $insertQb->insert($table)
+                ->values(
+                    array_map(function($value) use ($insertQb) {
+                        return $insertQb->createNamedParameter($value, $this->getType($value));
+                    }, array_merge($keys, $values))
+                );
+            return $insertQb->execute();
+        } catch (ConstraintViolationException $e) {
+            // value already exists, try update
+            $updateQb = $this->getQueryBuilder();
+            $updateQb->update($table);
+            foreach ($values as $name => $value) {
+                $updateQb->set($name, $updateQb->createNamedParameter($value, $this->getType($value)));
+            }
+            $where = $updateQb->expr()->andX();
+            $whereValues = array_merge($keys, $updatePreconditionValues);
+            foreach ($whereValues as $name => $value) {
+                $where->add($updateQb->expr()->eq(
+                    $name,
+                    $updateQb->createNamedParameter($value, $this->getType($value)),
+                    $this->getType($value)
+                ));
+            }
+            $updateQb->where($where);
+            $affected = $updateQb->execute();
+
+            if ($affected === 0 && !empty($updatePreconditionValues)) {
+                throw new PreConditionNotMetException();
+            }
+
+            return 0;
+        }
+    }
+
+    /**
+     * Create an exclusive read+write lock on a table
+     *
+     * @param string $tableName
+     * @throws \BadMethodCallException When trying to acquire a second lock
+     * @since 9.1.0
+     */
+    public function lockTable($tableName) {
+        if ($this->lockedTable !== null) {
+            throw new \BadMethodCallException('Can not lock a new table until the previous lock is released.');
+        }
+
+        $tableName = $this->tablePrefix . $tableName;
+        $this->lockedTable = $tableName;
+        $this->adapter->lockTable($tableName);
+    }
+
+    /**
+     * Release a previous acquired lock again
+     *
+     * @since 9.1.0
+     */
+    public function unlockTable() {
+        $this->adapter->unlockTable();
+        $this->lockedTable = null;
+    }
+
+    /**
+     * returns the error code and message as a string for logging
+     * works with DoctrineException
+     * @return string
+     */
+    public function getError() {
+        $msg = $this->errorCode() . ': ';
+        $errorInfo = $this->errorInfo();
+        if (is_array($errorInfo)) {
+            $msg .= 'SQLSTATE = '.$errorInfo[0] . ', ';
+            $msg .= 'Driver Code = '.$errorInfo[1] . ', ';
+            $msg .= 'Driver Message = '.$errorInfo[2];
+        }
+        return $msg;
+    }
+
+    /**
+     * Drop a table from the database if it exists
+     *
+     * @param string $table table name without the prefix
+     */
+    public function dropTable($table) {
+        $table = $this->tablePrefix . trim($table);
+        $schema = $this->getSchemaManager();
+        if($schema->tablesExist(array($table))) {
+            $schema->dropTable($table);
+        }
+    }
+
+    /**
+     * Check if a table exists
+     *
+     * @param string $table table name without the prefix
+     * @return bool
+     */
+    public function tableExists($table){
+        $table = $this->tablePrefix . trim($table);
+        $schema = $this->getSchemaManager();
+        return $schema->tablesExist(array($table));
+    }
+
+    // internal use
+    /**
+     * @param string $statement
+     * @return string
+     */
+    protected function replaceTablePrefix($statement) {
+        return str_replace( '*PREFIX*', $this->tablePrefix, $statement );
+    }
+
+    /**
+     * Check if a transaction is active
+     *
+     * @return bool
+     * @since 8.2.0
+     */
+    public function inTransaction() {
+        return $this->getTransactionNestingLevel() > 0;
+    }
+
+    /**
+     * Espace a parameter to be used in a LIKE query
+     *
+     * @param string $param
+     * @return string
+     */
+    public function escapeLikeParameter($param) {
+        return addcslashes($param, '\\_%');
+    }
+
+    /**
+     * Check whether or not the current database support 4byte wide unicode
+     *
+     * @return bool
+     * @since 11.0.0
+     */
+    public function supports4ByteText() {
+        if (!$this->getDatabasePlatform() instanceof MySqlPlatform) {
+            return true;
+        }
+        return $this->getParams()['charset'] === 'utf8mb4';
+    }
 }

lib/private/Files/Cache/Scanner.php

Doc Comments +11 added lines

@@ -386,6 +386,14 @@ 
 		return $size;
 	}
 
+	/**
+	 * @param string $path
+	 * @param boolean $recursive
+	 * @param integer $reuse
+	 * @param integer|null $folderId
+	 * @param boolean $lock
+	 * @param integer $size
+	 */
 	private function handleChildren($path, $recursive, $reuse, $folderId, $lock, &$size) {
 		// we put this in it's own function so it cleans up the memory before we start recursing
 		$existingChildren = $this->getExistingChildren($folderId);
@@ -485,6 +493,9 @@ 
 		}
 	}
 
+	/**
+	 * @param string|boolean $path
+	 */
 	private function runBackgroundScanJob(callable $callback, $path) {
 		try {
 			$callback();

Indentation +472 added lines, -472 removed lines

@@ -55,476 +55,476 @@
  * @package OC\Files\Cache
  */
 class Scanner extends BasicEmitter implements IScanner {
-	/**
-	 * @var \OC\Files\Storage\Storage $storage
-	 */
-	protected $storage;
-
-	/**
-	 * @var string $storageId
-	 */
-	protected $storageId;
-
-	/**
-	 * @var \OC\Files\Cache\Cache $cache
-	 */
-	protected $cache;
-
-	/**
-	 * @var boolean $cacheActive If true, perform cache operations, if false, do not affect cache
-	 */
-	protected $cacheActive;
-
-	/**
-	 * @var bool $useTransactions whether to use transactions
-	 */
-	protected $useTransactions = true;
-
-	/**
-	 * @var \OCP\Lock\ILockingProvider
-	 */
-	protected $lockingProvider;
-
-	public function __construct(\OC\Files\Storage\Storage $storage) {
-		$this->storage = $storage;
-		$this->storageId = $this->storage->getId();
-		$this->cache = $storage->getCache();
-		$this->cacheActive = !Config::getSystemValue('filesystem_cache_readonly', false);
-		$this->lockingProvider = \OC::$server->getLockingProvider();
-	}
-
-	/**
-	 * Whether to wrap the scanning of a folder in a database transaction
-	 * On default transactions are used
-	 *
-	 * @param bool $useTransactions
-	 */
-	public function setUseTransactions($useTransactions) {
-		$this->useTransactions = $useTransactions;
-	}
-
-	/**
-	 * get all the metadata of a file or folder
-	 * *
-	 *
-	 * @param string $path
-	 * @return array an array of metadata of the file
-	 */
-	protected function getData($path) {
-		$data = $this->storage->getMetaData($path);
-		if (is_null($data)) {
-			\OCP\Util::writeLog('OC\Files\Cache\Scanner', "!!! Path '$path' is not accessible or present !!!", \OCP\Util::DEBUG);
-		}
-		return $data;
-	}
-
-	/**
-	 * scan a single file and store it in the cache
-	 *
-	 * @param string $file
-	 * @param int $reuseExisting
-	 * @param int $parentId
-	 * @param array | null $cacheData existing data in the cache for the file to be scanned
-	 * @param bool $lock set to false to disable getting an additional read lock during scanning
-	 * @return array an array of metadata of the scanned file
-	 * @throws \OC\ServerNotAvailableException
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
-		if ($file !== '') {
-			try {
-				$this->storage->verifyPath(dirname($file), basename($file));
-			} catch (\Exception $e) {
-				return null;
-			}
-		}
-
-		// only proceed if $file is not a partial file nor a blacklisted file
-		if (!self::isPartialFile($file) and !Filesystem::isFileBlacklisted($file)) {
-
-			//acquire a lock
-			if ($lock) {
-				if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$this->storage->acquireLock($file, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
-				}
-			}
-
-			try {
-				$data = $this->getData($file);
-			} catch (ForbiddenException $e) {
-				return null;
-			}
-
-			if ($data) {
-
-				// pre-emit only if it was a file. By that we avoid counting/treating folders as files
-				if ($data['mimetype'] !== 'httpd/unix-directory') {
-					$this->emit('\OC\Files\Cache\Scanner', 'scanFile', array($file, $this->storageId));
-					\OC_Hook::emit('\OC\Files\Cache\Scanner', 'scan_file', array('path' => $file, 'storage' => $this->storageId));
-				}
-
-				$parent = dirname($file);
-				if ($parent === '.' or $parent === '/') {
-					$parent = '';
-				}
-				if ($parentId === -1) {
-					$parentId = $this->cache->getParentId($file);
-				}
-
-				// scan the parent if it's not in the cache (id -1) and the current file is not the root folder
-				if ($file and $parentId === -1) {
-					$parentData = $this->scanFile($parent);
-					if (!$parentData) {
-						return null;
-					}
-					$parentId = $parentData['fileid'];
-				}
-				if ($parent) {
-					$data['parent'] = $parentId;
-				}
-				if (is_null($cacheData)) {
-					/** @var CacheEntry $cacheData */
-					$cacheData = $this->cache->get($file);
-				}
-				if ($cacheData and $reuseExisting and isset($cacheData['fileid'])) {
-					// prevent empty etag
-					if (empty($cacheData['etag'])) {
-						$etag = $data['etag'];
-					} else {
-						$etag = $cacheData['etag'];
-					}
-					$fileId = $cacheData['fileid'];
-					$data['fileid'] = $fileId;
-					// only reuse data if the file hasn't explicitly changed
-					if (isset($data['storage_mtime']) && isset($cacheData['storage_mtime']) && $data['storage_mtime'] === $cacheData['storage_mtime']) {
-						$data['mtime'] = $cacheData['mtime'];
-						if (($reuseExisting & self::REUSE_SIZE) && ($data['size'] === -1)) {
-							$data['size'] = $cacheData['size'];
-						}
-						if ($reuseExisting & self::REUSE_ETAG) {
-							$data['etag'] = $etag;
-						}
-					}
-					// Only update metadata that has changed
-					$newData = array_diff_assoc($data, $cacheData->getData());
-				} else {
-					$newData = $data;
-					$fileId = -1;
-				}
-				if (!empty($newData)) {
-					// Reset the checksum if the data has changed
-					$newData['checksum'] = '';
-					$data['fileid'] = $this->addToCache($file, $newData, $fileId);
-				}
-				if (isset($cacheData['size'])) {
-					$data['oldSize'] = $cacheData['size'];
-				} else {
-					$data['oldSize'] = 0;
-				}
-
-				if (isset($cacheData['encrypted'])) {
-					$data['encrypted'] = $cacheData['encrypted'];
-				}
-
-				// post-emit only if it was a file. By that we avoid counting/treating folders as files
-				if ($data['mimetype'] !== 'httpd/unix-directory') {
-					$this->emit('\OC\Files\Cache\Scanner', 'postScanFile', array($file, $this->storageId));
-					\OC_Hook::emit('\OC\Files\Cache\Scanner', 'post_scan_file', array('path' => $file, 'storage' => $this->storageId));
-				}
-
-			} else {
-				$this->removeFromCache($file);
-			}
-
-			//release the acquired lock
-			if ($lock) {
-				if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$this->storage->releaseLock($file, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
-				}
-			}
-
-			if ($data && !isset($data['encrypted'])) {
-				$data['encrypted'] = false;
-			}
-			return $data;
-		}
-
-		return null;
-	}
-
-	protected function removeFromCache($path) {
-		\OC_Hook::emit('Scanner', 'removeFromCache', array('file' => $path));
-		$this->emit('\OC\Files\Cache\Scanner', 'removeFromCache', array($path));
-		if ($this->cacheActive) {
-			$this->cache->remove($path);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param array $data
-	 * @param int $fileId
-	 * @return int the id of the added file
-	 */
-	protected function addToCache($path, $data, $fileId = -1) {
-		\OC_Hook::emit('Scanner', 'addToCache', array('file' => $path, 'data' => $data));
-		$this->emit('\OC\Files\Cache\Scanner', 'addToCache', array($path, $this->storageId, $data));
-		if ($this->cacheActive) {
-			if ($fileId !== -1) {
-				$this->cache->update($fileId, $data);
-				return $fileId;
-			} else {
-				return $this->cache->put($path, $data);
-			}
-		} else {
-			return -1;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param array $data
-	 * @param int $fileId
-	 */
-	protected function updateCache($path, $data, $fileId = -1) {
-		\OC_Hook::emit('Scanner', 'addToCache', array('file' => $path, 'data' => $data));
-		$this->emit('\OC\Files\Cache\Scanner', 'updateCache', array($path, $this->storageId, $data));
-		if ($this->cacheActive) {
-			if ($fileId !== -1) {
-				$this->cache->update($fileId, $data);
-			} else {
-				$this->cache->put($path, $data);
-			}
-		}
-	}
-
-	/**
-	 * scan a folder and all it's children
-	 *
-	 * @param string $path
-	 * @param bool $recursive
-	 * @param int $reuse
-	 * @param bool $lock set to false to disable getting an additional read lock during scanning
-	 * @return array an array of the meta data of the scanned file or folder
-	 */
-	public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $lock = true) {
-		if ($reuse === -1) {
-			$reuse = ($recursive === self::SCAN_SHALLOW) ? self::REUSE_ETAG | self::REUSE_SIZE : self::REUSE_ETAG;
-		}
-		if ($lock) {
-			if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$this->storage->acquireLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
-				$this->storage->acquireLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
-			}
-		}
-		$data = $this->scanFile($path, $reuse, -1, null, $lock);
-		if ($data and $data['mimetype'] === 'httpd/unix-directory') {
-			$size = $this->scanChildren($path, $recursive, $reuse, $data['fileid'], $lock);
-			$data['size'] = $size;
-		}
-		if ($lock) {
-			if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$this->storage->releaseLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
-				$this->storage->releaseLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
-			}
-		}
-		return $data;
-	}
-
-	/**
-	 * Get the children currently in the cache
-	 *
-	 * @param int $folderId
-	 * @return array[]
-	 */
-	protected function getExistingChildren($folderId) {
-		$existingChildren = array();
-		$children = $this->cache->getFolderContentsById($folderId);
-		foreach ($children as $child) {
-			$existingChildren[$child['name']] = $child;
-		}
-		return $existingChildren;
-	}
-
-	/**
-	 * Get the children from the storage
-	 *
-	 * @param string $folder
-	 * @return string[]
-	 */
-	protected function getNewChildren($folder) {
-		$children = array();
-		if ($dh = $this->storage->opendir($folder)) {
-			if (is_resource($dh)) {
-				while (($file = readdir($dh)) !== false) {
-					if (!Filesystem::isIgnoredDir($file)) {
-						$children[] = trim(\OC\Files\Filesystem::normalizePath($file), '/');
-					}
-				}
-			}
-		}
-		return $children;
-	}
-
-	/**
-	 * scan all the files and folders in a folder
-	 *
-	 * @param string $path
-	 * @param bool $recursive
-	 * @param int $reuse
-	 * @param int $folderId id for the folder to be scanned
-	 * @param bool $lock set to false to disable getting an additional read lock during scanning
-	 * @return int the size of the scanned folder or -1 if the size is unknown at this stage
-	 */
-	protected function scanChildren($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $folderId = null, $lock = true) {
-		if ($reuse === -1) {
-			$reuse = ($recursive === self::SCAN_SHALLOW) ? self::REUSE_ETAG | self::REUSE_SIZE : self::REUSE_ETAG;
-		}
-		$this->emit('\OC\Files\Cache\Scanner', 'scanFolder', array($path, $this->storageId));
-		$size = 0;
-		if (!is_null($folderId)) {
-			$folderId = $this->cache->getId($path);
-		}
-		$childQueue = $this->handleChildren($path, $recursive, $reuse, $folderId, $lock, $size);
-
-		foreach ($childQueue as $child => $childId) {
-			$childSize = $this->scanChildren($child, $recursive, $reuse, $childId, $lock);
-			if ($childSize === -1) {
-				$size = -1;
-			} else if ($size !== -1) {
-				$size += $childSize;
-			}
-		}
-		if ($this->cacheActive) {
-			$this->cache->update($folderId, array('size' => $size));
-		}
-		$this->emit('\OC\Files\Cache\Scanner', 'postScanFolder', array($path, $this->storageId));
-		return $size;
-	}
-
-	private function handleChildren($path, $recursive, $reuse, $folderId, $lock, &$size) {
-		// we put this in it's own function so it cleans up the memory before we start recursing
-		$existingChildren = $this->getExistingChildren($folderId);
-		$newChildren = $this->getNewChildren($path);
-
-		if ($this->useTransactions) {
-			\OC::$server->getDatabaseConnection()->beginTransaction();
-		}
-
-		$exceptionOccurred = false;
-		$childQueue = [];
-		foreach ($newChildren as $file) {
-			$child = ($path) ? $path . '/' . $file : $file;
-			try {
-				$existingData = isset($existingChildren[$file]) ? $existingChildren[$file] : null;
-				$data = $this->scanFile($child, $reuse, $folderId, $existingData, $lock);
-				if ($data) {
-					if ($data['mimetype'] === 'httpd/unix-directory' and $recursive === self::SCAN_RECURSIVE) {
-						$childQueue[$child] = $data['fileid'];
-					} else if ($data['mimetype'] === 'httpd/unix-directory' and $recursive === self::SCAN_RECURSIVE_INCOMPLETE and $data['size'] === -1) {
-						// only recurse into folders which aren't fully scanned
-						$childQueue[$child] = $data['fileid'];
-					} else if ($data['size'] === -1) {
-						$size = -1;
-					} else if ($size !== -1) {
-						$size += $data['size'];
-					}
-				}
-			} catch (\Doctrine\DBAL\DBALException $ex) {
-				// might happen if inserting duplicate while a scanning
-				// process is running in parallel
-				// log and ignore
-				\OCP\Util::writeLog('core', 'Exception while scanning file "' . $child . '": ' . $ex->getMessage(), \OCP\Util::DEBUG);
-				$exceptionOccurred = true;
-			} catch (\OCP\Lock\LockedException $e) {
-				if ($this->useTransactions) {
-					\OC::$server->getDatabaseConnection()->rollback();
-				}
-				throw $e;
-			}
-		}
-		$removedChildren = \array_diff(array_keys($existingChildren), $newChildren);
-		foreach ($removedChildren as $childName) {
-			$child = ($path) ? $path . '/' . $childName : $childName;
-			$this->removeFromCache($child);
-		}
-		if ($this->useTransactions) {
-			\OC::$server->getDatabaseConnection()->commit();
-		}
-		if ($exceptionOccurred) {
-			// It might happen that the parallel scan process has already
-			// inserted mimetypes but those weren't available yet inside the transaction
-			// To make sure to have the updated mime types in such cases,
-			// we reload them here
-			\OC::$server->getMimeTypeLoader()->reset();
-		}
-		return $childQueue;
-	}
-
-	/**
-	 * check if the file should be ignored when scanning
-	 * NOTE: files with a '.part' extension are ignored as well!
-	 *       prevents unfinished put requests to be scanned
-	 *
-	 * @param string $file
-	 * @return boolean
-	 */
-	public static function isPartialFile($file) {
-		if (pathinfo($file, PATHINFO_EXTENSION) === 'part') {
-			return true;
-		}
-		if (strpos($file, '.part/') !== false) {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * walk over any folders that are not fully scanned yet and scan them
-	 */
-	public function backgroundScan() {
-		if (!$this->cache->inCache('')) {
-			$this->runBackgroundScanJob(function () {
-				$this->scan('', self::SCAN_RECURSIVE, self::REUSE_ETAG);
-			}, '');
-		} else {
-			$lastPath = null;
-			while (($path = $this->cache->getIncomplete()) !== false && $path !== $lastPath) {
-				$this->runBackgroundScanJob(function () use ($path) {
-					$this->scan($path, self::SCAN_RECURSIVE_INCOMPLETE, self::REUSE_ETAG | self::REUSE_SIZE);
-				}, $path);
-				// FIXME: this won't proceed with the next item, needs revamping of getIncomplete()
-				// to make this possible
-				$lastPath = $path;
-			}
-		}
-	}
-
-	private function runBackgroundScanJob(callable $callback, $path) {
-		try {
-			$callback();
-			\OC_Hook::emit('Scanner', 'correctFolderSize', array('path' => $path));
-			if ($this->cacheActive && $this->cache instanceof Cache) {
-				$this->cache->correctFolderSize($path);
-			}
-		} catch (\OCP\Files\StorageInvalidException $e) {
-			// skip unavailable storages
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			// skip unavailable storages
-		} catch (\OCP\Files\ForbiddenException $e) {
-			// skip forbidden storages
-		} catch (\OCP\Lock\LockedException $e) {
-			// skip unavailable storages
-		}
-	}
-
-	/**
-	 * Set whether the cache is affected by scan operations
-	 *
-	 * @param boolean $active The active state of the cache
-	 */
-	public function setCacheActive($active) {
-		$this->cacheActive = $active;
-	}
+    /**
+     * @var \OC\Files\Storage\Storage $storage
+     */
+    protected $storage;
+
+    /**
+     * @var string $storageId
+     */
+    protected $storageId;
+
+    /**
+     * @var \OC\Files\Cache\Cache $cache
+     */
+    protected $cache;
+
+    /**
+     * @var boolean $cacheActive If true, perform cache operations, if false, do not affect cache
+     */
+    protected $cacheActive;
+
+    /**
+     * @var bool $useTransactions whether to use transactions
+     */
+    protected $useTransactions = true;
+
+    /**
+     * @var \OCP\Lock\ILockingProvider
+     */
+    protected $lockingProvider;
+
+    public function __construct(\OC\Files\Storage\Storage $storage) {
+        $this->storage = $storage;
+        $this->storageId = $this->storage->getId();
+        $this->cache = $storage->getCache();
+        $this->cacheActive = !Config::getSystemValue('filesystem_cache_readonly', false);
+        $this->lockingProvider = \OC::$server->getLockingProvider();
+    }
+
+    /**
+     * Whether to wrap the scanning of a folder in a database transaction
+     * On default transactions are used
+     *
+     * @param bool $useTransactions
+     */
+    public function setUseTransactions($useTransactions) {
+        $this->useTransactions = $useTransactions;
+    }
+
+    /**
+     * get all the metadata of a file or folder
+     * *
+     *
+     * @param string $path
+     * @return array an array of metadata of the file
+     */
+    protected function getData($path) {
+        $data = $this->storage->getMetaData($path);
+        if (is_null($data)) {
+            \OCP\Util::writeLog('OC\Files\Cache\Scanner', "!!! Path '$path' is not accessible or present !!!", \OCP\Util::DEBUG);
+        }
+        return $data;
+    }
+
+    /**
+     * scan a single file and store it in the cache
+     *
+     * @param string $file
+     * @param int $reuseExisting
+     * @param int $parentId
+     * @param array | null $cacheData existing data in the cache for the file to be scanned
+     * @param bool $lock set to false to disable getting an additional read lock during scanning
+     * @return array an array of metadata of the scanned file
+     * @throws \OC\ServerNotAvailableException
+     * @throws \OCP\Lock\LockedException
+     */
+    public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
+        if ($file !== '') {
+            try {
+                $this->storage->verifyPath(dirname($file), basename($file));
+            } catch (\Exception $e) {
+                return null;
+            }
+        }
+
+        // only proceed if $file is not a partial file nor a blacklisted file
+        if (!self::isPartialFile($file) and !Filesystem::isFileBlacklisted($file)) {
+
+            //acquire a lock
+            if ($lock) {
+                if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                    $this->storage->acquireLock($file, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
+                }
+            }
+
+            try {
+                $data = $this->getData($file);
+            } catch (ForbiddenException $e) {
+                return null;
+            }
+
+            if ($data) {
+
+                // pre-emit only if it was a file. By that we avoid counting/treating folders as files
+                if ($data['mimetype'] !== 'httpd/unix-directory') {
+                    $this->emit('\OC\Files\Cache\Scanner', 'scanFile', array($file, $this->storageId));
+                    \OC_Hook::emit('\OC\Files\Cache\Scanner', 'scan_file', array('path' => $file, 'storage' => $this->storageId));
+                }
+
+                $parent = dirname($file);
+                if ($parent === '.' or $parent === '/') {
+                    $parent = '';
+                }
+                if ($parentId === -1) {
+                    $parentId = $this->cache->getParentId($file);
+                }
+
+                // scan the parent if it's not in the cache (id -1) and the current file is not the root folder
+                if ($file and $parentId === -1) {
+                    $parentData = $this->scanFile($parent);
+                    if (!$parentData) {
+                        return null;
+                    }
+                    $parentId = $parentData['fileid'];
+                }
+                if ($parent) {
+                    $data['parent'] = $parentId;
+                }
+                if (is_null($cacheData)) {
+                    /** @var CacheEntry $cacheData */
+                    $cacheData = $this->cache->get($file);
+                }
+                if ($cacheData and $reuseExisting and isset($cacheData['fileid'])) {
+                    // prevent empty etag
+                    if (empty($cacheData['etag'])) {
+                        $etag = $data['etag'];
+                    } else {
+                        $etag = $cacheData['etag'];
+                    }
+                    $fileId = $cacheData['fileid'];
+                    $data['fileid'] = $fileId;
+                    // only reuse data if the file hasn't explicitly changed
+                    if (isset($data['storage_mtime']) && isset($cacheData['storage_mtime']) && $data['storage_mtime'] === $cacheData['storage_mtime']) {
+                        $data['mtime'] = $cacheData['mtime'];
+                        if (($reuseExisting & self::REUSE_SIZE) && ($data['size'] === -1)) {
+                            $data['size'] = $cacheData['size'];
+                        }
+                        if ($reuseExisting & self::REUSE_ETAG) {
+                            $data['etag'] = $etag;
+                        }
+                    }
+                    // Only update metadata that has changed
+                    $newData = array_diff_assoc($data, $cacheData->getData());
+                } else {
+                    $newData = $data;
+                    $fileId = -1;
+                }
+                if (!empty($newData)) {
+                    // Reset the checksum if the data has changed
+                    $newData['checksum'] = '';
+                    $data['fileid'] = $this->addToCache($file, $newData, $fileId);
+                }
+                if (isset($cacheData['size'])) {
+                    $data['oldSize'] = $cacheData['size'];
+                } else {
+                    $data['oldSize'] = 0;
+                }
+
+                if (isset($cacheData['encrypted'])) {
+                    $data['encrypted'] = $cacheData['encrypted'];
+                }
+
+                // post-emit only if it was a file. By that we avoid counting/treating folders as files
+                if ($data['mimetype'] !== 'httpd/unix-directory') {
+                    $this->emit('\OC\Files\Cache\Scanner', 'postScanFile', array($file, $this->storageId));
+                    \OC_Hook::emit('\OC\Files\Cache\Scanner', 'post_scan_file', array('path' => $file, 'storage' => $this->storageId));
+                }
+
+            } else {
+                $this->removeFromCache($file);
+            }
+
+            //release the acquired lock
+            if ($lock) {
+                if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                    $this->storage->releaseLock($file, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
+                }
+            }
+
+            if ($data && !isset($data['encrypted'])) {
+                $data['encrypted'] = false;
+            }
+            return $data;
+        }
+
+        return null;
+    }
+
+    protected function removeFromCache($path) {
+        \OC_Hook::emit('Scanner', 'removeFromCache', array('file' => $path));
+        $this->emit('\OC\Files\Cache\Scanner', 'removeFromCache', array($path));
+        if ($this->cacheActive) {
+            $this->cache->remove($path);
+        }
+    }
+
+    /**
+     * @param string $path
+     * @param array $data
+     * @param int $fileId
+     * @return int the id of the added file
+     */
+    protected function addToCache($path, $data, $fileId = -1) {
+        \OC_Hook::emit('Scanner', 'addToCache', array('file' => $path, 'data' => $data));
+        $this->emit('\OC\Files\Cache\Scanner', 'addToCache', array($path, $this->storageId, $data));
+        if ($this->cacheActive) {
+            if ($fileId !== -1) {
+                $this->cache->update($fileId, $data);
+                return $fileId;
+            } else {
+                return $this->cache->put($path, $data);
+            }
+        } else {
+            return -1;
+        }
+    }
+
+    /**
+     * @param string $path
+     * @param array $data
+     * @param int $fileId
+     */
+    protected function updateCache($path, $data, $fileId = -1) {
+        \OC_Hook::emit('Scanner', 'addToCache', array('file' => $path, 'data' => $data));
+        $this->emit('\OC\Files\Cache\Scanner', 'updateCache', array($path, $this->storageId, $data));
+        if ($this->cacheActive) {
+            if ($fileId !== -1) {
+                $this->cache->update($fileId, $data);
+            } else {
+                $this->cache->put($path, $data);
+            }
+        }
+    }
+
+    /**
+     * scan a folder and all it's children
+     *
+     * @param string $path
+     * @param bool $recursive
+     * @param int $reuse
+     * @param bool $lock set to false to disable getting an additional read lock during scanning
+     * @return array an array of the meta data of the scanned file or folder
+     */
+    public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $lock = true) {
+        if ($reuse === -1) {
+            $reuse = ($recursive === self::SCAN_SHALLOW) ? self::REUSE_ETAG | self::REUSE_SIZE : self::REUSE_ETAG;
+        }
+        if ($lock) {
+            if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                $this->storage->acquireLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
+                $this->storage->acquireLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
+            }
+        }
+        $data = $this->scanFile($path, $reuse, -1, null, $lock);
+        if ($data and $data['mimetype'] === 'httpd/unix-directory') {
+            $size = $this->scanChildren($path, $recursive, $reuse, $data['fileid'], $lock);
+            $data['size'] = $size;
+        }
+        if ($lock) {
+            if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
+                $this->storage->releaseLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
+                $this->storage->releaseLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
+            }
+        }
+        return $data;
+    }
+
+    /**
+     * Get the children currently in the cache
+     *
+     * @param int $folderId
+     * @return array[]
+     */
+    protected function getExistingChildren($folderId) {
+        $existingChildren = array();
+        $children = $this->cache->getFolderContentsById($folderId);
+        foreach ($children as $child) {
+            $existingChildren[$child['name']] = $child;
+        }
+        return $existingChildren;
+    }
+
+    /**
+     * Get the children from the storage
+     *
+     * @param string $folder
+     * @return string[]
+     */
+    protected function getNewChildren($folder) {
+        $children = array();
+        if ($dh = $this->storage->opendir($folder)) {
+            if (is_resource($dh)) {
+                while (($file = readdir($dh)) !== false) {
+                    if (!Filesystem::isIgnoredDir($file)) {
+                        $children[] = trim(\OC\Files\Filesystem::normalizePath($file), '/');
+                    }
+                }
+            }
+        }
+        return $children;
+    }
+
+    /**
+     * scan all the files and folders in a folder
+     *
+     * @param string $path
+     * @param bool $recursive
+     * @param int $reuse
+     * @param int $folderId id for the folder to be scanned
+     * @param bool $lock set to false to disable getting an additional read lock during scanning
+     * @return int the size of the scanned folder or -1 if the size is unknown at this stage
+     */
+    protected function scanChildren($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $folderId = null, $lock = true) {
+        if ($reuse === -1) {
+            $reuse = ($recursive === self::SCAN_SHALLOW) ? self::REUSE_ETAG | self::REUSE_SIZE : self::REUSE_ETAG;
+        }
+        $this->emit('\OC\Files\Cache\Scanner', 'scanFolder', array($path, $this->storageId));
+        $size = 0;
+        if (!is_null($folderId)) {
+            $folderId = $this->cache->getId($path);
+        }
+        $childQueue = $this->handleChildren($path, $recursive, $reuse, $folderId, $lock, $size);
+
+        foreach ($childQueue as $child => $childId) {
+            $childSize = $this->scanChildren($child, $recursive, $reuse, $childId, $lock);
+            if ($childSize === -1) {
+                $size = -1;
+            } else if ($size !== -1) {
+                $size += $childSize;
+            }
+        }
+        if ($this->cacheActive) {
+            $this->cache->update($folderId, array('size' => $size));
+        }
+        $this->emit('\OC\Files\Cache\Scanner', 'postScanFolder', array($path, $this->storageId));
+        return $size;
+    }
+
+    private function handleChildren($path, $recursive, $reuse, $folderId, $lock, &$size) {
+        // we put this in it's own function so it cleans up the memory before we start recursing
+        $existingChildren = $this->getExistingChildren($folderId);
+        $newChildren = $this->getNewChildren($path);
+
+        if ($this->useTransactions) {
+            \OC::$server->getDatabaseConnection()->beginTransaction();
+        }
+
+        $exceptionOccurred = false;
+        $childQueue = [];
+        foreach ($newChildren as $file) {
+            $child = ($path) ? $path . '/' . $file : $file;
+            try {
+                $existingData = isset($existingChildren[$file]) ? $existingChildren[$file] : null;
+                $data = $this->scanFile($child, $reuse, $folderId, $existingData, $lock);
+                if ($data) {
+                    if ($data['mimetype'] === 'httpd/unix-directory' and $recursive === self::SCAN_RECURSIVE) {
+                        $childQueue[$child] = $data['fileid'];
+                    } else if ($data['mimetype'] === 'httpd/unix-directory' and $recursive === self::SCAN_RECURSIVE_INCOMPLETE and $data['size'] === -1) {
+                        // only recurse into folders which aren't fully scanned
+                        $childQueue[$child] = $data['fileid'];
+                    } else if ($data['size'] === -1) {
+                        $size = -1;
+                    } else if ($size !== -1) {
+                        $size += $data['size'];
+                    }
+                }
+            } catch (\Doctrine\DBAL\DBALException $ex) {
+                // might happen if inserting duplicate while a scanning
+                // process is running in parallel
+                // log and ignore
+                \OCP\Util::writeLog('core', 'Exception while scanning file "' . $child . '": ' . $ex->getMessage(), \OCP\Util::DEBUG);
+                $exceptionOccurred = true;
+            } catch (\OCP\Lock\LockedException $e) {
+                if ($this->useTransactions) {
+                    \OC::$server->getDatabaseConnection()->rollback();
+                }
+                throw $e;
+            }
+        }
+        $removedChildren = \array_diff(array_keys($existingChildren), $newChildren);
+        foreach ($removedChildren as $childName) {
+            $child = ($path) ? $path . '/' . $childName : $childName;
+            $this->removeFromCache($child);
+        }
+        if ($this->useTransactions) {
+            \OC::$server->getDatabaseConnection()->commit();
+        }
+        if ($exceptionOccurred) {
+            // It might happen that the parallel scan process has already
+            // inserted mimetypes but those weren't available yet inside the transaction
+            // To make sure to have the updated mime types in such cases,
+            // we reload them here
+            \OC::$server->getMimeTypeLoader()->reset();
+        }
+        return $childQueue;
+    }
+
+    /**
+     * check if the file should be ignored when scanning
+     * NOTE: files with a '.part' extension are ignored as well!
+     *       prevents unfinished put requests to be scanned
+     *
+     * @param string $file
+     * @return boolean
+     */
+    public static function isPartialFile($file) {
+        if (pathinfo($file, PATHINFO_EXTENSION) === 'part') {
+            return true;
+        }
+        if (strpos($file, '.part/') !== false) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * walk over any folders that are not fully scanned yet and scan them
+     */
+    public function backgroundScan() {
+        if (!$this->cache->inCache('')) {
+            $this->runBackgroundScanJob(function () {
+                $this->scan('', self::SCAN_RECURSIVE, self::REUSE_ETAG);
+            }, '');
+        } else {
+            $lastPath = null;
+            while (($path = $this->cache->getIncomplete()) !== false && $path !== $lastPath) {
+                $this->runBackgroundScanJob(function () use ($path) {
+                    $this->scan($path, self::SCAN_RECURSIVE_INCOMPLETE, self::REUSE_ETAG | self::REUSE_SIZE);
+                }, $path);
+                // FIXME: this won't proceed with the next item, needs revamping of getIncomplete()
+                // to make this possible
+                $lastPath = $path;
+            }
+        }
+    }
+
+    private function runBackgroundScanJob(callable $callback, $path) {
+        try {
+            $callback();
+            \OC_Hook::emit('Scanner', 'correctFolderSize', array('path' => $path));
+            if ($this->cacheActive && $this->cache instanceof Cache) {
+                $this->cache->correctFolderSize($path);
+            }
+        } catch (\OCP\Files\StorageInvalidException $e) {
+            // skip unavailable storages
+        } catch (\OCP\Files\StorageNotAvailableException $e) {
+            // skip unavailable storages
+        } catch (\OCP\Files\ForbiddenException $e) {
+            // skip forbidden storages
+        } catch (\OCP\Lock\LockedException $e) {
+            // skip unavailable storages
+        }
+    }
+
+    /**
+     * Set whether the cache is affected by scan operations
+     *
+     * @param boolean $active The active state of the cache
+     */
+    public function setCacheActive($active) {
+        $this->cacheActive = $active;
+    }
 }

Spacing +7 added lines, -7 removed lines

@@ -313,7 +313,7 @@ 
 		}
 		if ($lock) {
 			if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$this->storage->acquireLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
+				$this->storage->acquireLock('scanner::'.$path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
 				$this->storage->acquireLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
 			}
 		}
@@ -325,7 +325,7 @@ 
 		if ($lock) {
 			if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
 				$this->storage->releaseLock($path, ILockingProvider::LOCK_SHARED, $this->lockingProvider);
-				$this->storage->releaseLock('scanner::' . $path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
+				$this->storage->releaseLock('scanner::'.$path, ILockingProvider::LOCK_EXCLUSIVE, $this->lockingProvider);
 			}
 		}
 		return $data;
@@ -414,7 +414,7 @@ 
 		$exceptionOccurred = false;
 		$childQueue = [];
 		foreach ($newChildren as $file) {
-			$child = ($path) ? $path . '/' . $file : $file;
+			$child = ($path) ? $path.'/'.$file : $file;
 			try {
 				$existingData = isset($existingChildren[$file]) ? $existingChildren[$file] : null;
 				$data = $this->scanFile($child, $reuse, $folderId, $existingData, $lock);
@@ -434,7 +434,7 @@ 
 				// might happen if inserting duplicate while a scanning
 				// process is running in parallel
 				// log and ignore
-				\OCP\Util::writeLog('core', 'Exception while scanning file "' . $child . '": ' . $ex->getMessage(), \OCP\Util::DEBUG);
+				\OCP\Util::writeLog('core', 'Exception while scanning file "'.$child.'": '.$ex->getMessage(), \OCP\Util::DEBUG);
 				$exceptionOccurred = true;
 			} catch (\OCP\Lock\LockedException $e) {
 				if ($this->useTransactions) {
@@ -445,7 +445,7 @@ 
 		}
 		$removedChildren = \array_diff(array_keys($existingChildren), $newChildren);
 		foreach ($removedChildren as $childName) {
-			$child = ($path) ? $path . '/' . $childName : $childName;
+			$child = ($path) ? $path.'/'.$childName : $childName;
 			$this->removeFromCache($child);
 		}
 		if ($this->useTransactions) {
@@ -485,13 +485,13 @@ 
 	 */
 	public function backgroundScan() {
 		if (!$this->cache->inCache('')) {
-			$this->runBackgroundScanJob(function () {
+			$this->runBackgroundScanJob(function() {
 				$this->scan('', self::SCAN_RECURSIVE, self::REUSE_ETAG);
 			}, '');
 		} else {
 			$lastPath = null;
 			while (($path = $this->cache->getIncomplete()) !== false && $path !== $lastPath) {
-				$this->runBackgroundScanJob(function () use ($path) {
+				$this->runBackgroundScanJob(function() use ($path) {
 					$this->scan($path, self::SCAN_RECURSIVE_INCOMPLETE, self::REUSE_ETAG | self::REUSE_SIZE);
 				}, $path);
 				// FIXME: this won't proceed with the next item, needs revamping of getIncomplete()

lib/private/Files/Config/UserMountCache.php

Doc Comments +1 added lines, -1 removed lines

@@ -206,7 +206,7 @@
 	}
 
 	/**
-	 * @param $fileId
+	 * @param integer $fileId
 	 * @return array
 	 * @throws \OCP\Files\NotFoundException
 	 */

Indentation +291 added lines, -291 removed lines

@@ -44,295 +44,295 @@
  * Cache mounts points per user in the cache so we can easilly look them up
  */
 class UserMountCache implements IUserMountCache {
-	/**
-	 * @var IDBConnection
-	 */
-	private $connection;
-
-	/**
-	 * @var IUserManager
-	 */
-	private $userManager;
-
-	/**
-	 * Cached mount info.
-	 * Map of $userId to ICachedMountInfo.
-	 *
-	 * @var ICache
-	 **/
-	private $mountsForUsers;
-
-	/**
-	 * @var ILogger
-	 */
-	private $logger;
-
-	/**
-	 * @var ICache
-	 */
-	private $cacheInfoCache;
-
-	/**
-	 * UserMountCache constructor.
-	 *
-	 * @param IDBConnection $connection
-	 * @param IUserManager $userManager
-	 * @param ILogger $logger
-	 */
-	public function __construct(IDBConnection $connection, IUserManager $userManager, ILogger $logger) {
-		$this->connection = $connection;
-		$this->userManager = $userManager;
-		$this->logger = $logger;
-		$this->cacheInfoCache = new CappedMemoryCache();
-		$this->mountsForUsers = new CappedMemoryCache();
-	}
-
-	public function registerMounts(IUser $user, array $mounts) {
-		// filter out non-proper storages coming from unit tests
-		$mounts = array_filter($mounts, function (IMountPoint $mount) {
-			return $mount instanceof SharedMount || $mount->getStorage() && $mount->getStorage()->getCache();
-		});
-		/** @var ICachedMountInfo[] $newMounts */
-		$newMounts = array_map(function (IMountPoint $mount) use ($user) {
-			// filter out any storages which aren't scanned yet since we aren't interested in files from those storages (yet)
-			if ($mount->getStorageRootId() === -1) {
-				return null;
-			} else {
-				return new LazyStorageMountInfo($user, $mount);
-			}
-		}, $mounts);
-		$newMounts = array_values(array_filter($newMounts));
-
-		$cachedMounts = $this->getMountsForUser($user);
-		$mountDiff = function (ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
-			// since we are only looking for mounts for a specific user comparing on root id is enough
-			return $mount1->getRootId() - $mount2->getRootId();
-		};
-
-		/** @var ICachedMountInfo[] $addedMounts */
-		$addedMounts = array_udiff($newMounts, $cachedMounts, $mountDiff);
-		/** @var ICachedMountInfo[] $removedMounts */
-		$removedMounts = array_udiff($cachedMounts, $newMounts, $mountDiff);
-
-		$changedMounts = $this->findChangedMounts($newMounts, $cachedMounts);
-
-		foreach ($addedMounts as $mount) {
-			$this->addToCache($mount);
-			$this->mountsForUsers[$user->getUID()][] = $mount;
-		}
-		foreach ($removedMounts as $mount) {
-			$this->removeFromCache($mount);
-			$index = array_search($mount, $this->mountsForUsers[$user->getUID()]);
-			unset($this->mountsForUsers[$user->getUID()][$index]);
-		}
-		foreach ($changedMounts as $mount) {
-			$this->updateCachedMount($mount);
-		}
-	}
-
-	/**
-	 * @param ICachedMountInfo[] $newMounts
-	 * @param ICachedMountInfo[] $cachedMounts
-	 * @return ICachedMountInfo[]
-	 */
-	private function findChangedMounts(array $newMounts, array $cachedMounts) {
-		$changed = [];
-		foreach ($newMounts as $newMount) {
-			foreach ($cachedMounts as $cachedMount) {
-				if (
-					$newMount->getRootId() === $cachedMount->getRootId() &&
-					(
-						$newMount->getMountPoint() !== $cachedMount->getMountPoint() ||
-						$newMount->getStorageId() !== $cachedMount->getStorageId() ||
-						$newMount->getMountId() !== $cachedMount->getMountId()
-					)
-				) {
-					$changed[] = $newMount;
-				}
-			}
-		}
-		return $changed;
-	}
-
-	private function addToCache(ICachedMountInfo $mount) {
-		if ($mount->getStorageId() !== -1) {
-			$this->connection->insertIfNotExist('*PREFIX*mounts', [
-				'storage_id' => $mount->getStorageId(),
-				'root_id' => $mount->getRootId(),
-				'user_id' => $mount->getUser()->getUID(),
-				'mount_point' => $mount->getMountPoint(),
-				'mount_id' => $mount->getMountId()
-			], ['root_id', 'user_id']);
-		} else {
-			// in some cases this is legitimate, like orphaned shares
-			$this->logger->debug('Could not get storage info for mount at ' . $mount->getMountPoint());
-		}
-	}
-
-	private function updateCachedMount(ICachedMountInfo $mount) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->update('mounts')
-			->set('storage_id', $builder->createNamedParameter($mount->getStorageId()))
-			->set('mount_point', $builder->createNamedParameter($mount->getMountPoint()))
-			->set('mount_id', $builder->createNamedParameter($mount->getMountId(), IQueryBuilder::PARAM_INT))
-			->where($builder->expr()->eq('user_id', $builder->createNamedParameter($mount->getUser()->getUID())))
-			->andWhere($builder->expr()->eq('root_id', $builder->createNamedParameter($mount->getRootId(), IQueryBuilder::PARAM_INT)));
-
-		$query->execute();
-	}
-
-	private function removeFromCache(ICachedMountInfo $mount) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->delete('mounts')
-			->where($builder->expr()->eq('user_id', $builder->createNamedParameter($mount->getUser()->getUID())))
-			->andWhere($builder->expr()->eq('root_id', $builder->createNamedParameter($mount->getRootId(), IQueryBuilder::PARAM_INT)));
-		$query->execute();
-	}
-
-	private function dbRowToMountInfo(array $row) {
-		$user = $this->userManager->get($row['user_id']);
-		if (is_null($user)) {
-			return null;
-		}
-		return new CachedMountInfo($user, (int)$row['storage_id'], (int)$row['root_id'], $row['mount_point'], $row['mount_id'], isset($row['path'])? $row['path']:'');
-	}
-
-	/**
-	 * @param IUser $user
-	 * @return ICachedMountInfo[]
-	 */
-	public function getMountsForUser(IUser $user) {
-		if (!isset($this->mountsForUsers[$user->getUID()])) {
-			$builder = $this->connection->getQueryBuilder();
-			$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
-				->from('mounts', 'm')
-				->innerJoin('m', 'filecache', 'f', $builder->expr()->eq('m.root_id', 'f.fileid'))
-				->where($builder->expr()->eq('user_id', $builder->createPositionalParameter($user->getUID())));
-
-			$rows = $query->execute()->fetchAll();
-
-			$this->mountsForUsers[$user->getUID()] = array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
-		}
-		return $this->mountsForUsers[$user->getUID()];
-	}
-
-	/**
-	 * @param int $numericStorageId
-	 * @param string|null $user limit the results to a single user
-	 * @return CachedMountInfo[]
-	 */
-	public function getMountsForStorageId($numericStorageId, $user = null) {
-		$builder = $this->connection->getQueryBuilder();
-		$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
-			->from('mounts', 'm')
-			->innerJoin('m', 'filecache', 'f' , $builder->expr()->eq('m.root_id', 'f.fileid'))
-			->where($builder->expr()->eq('storage_id', $builder->createPositionalParameter($numericStorageId, IQueryBuilder::PARAM_INT)));
-
-		if ($user) {
-			$query->andWhere($builder->expr()->eq('user_id', $builder->createPositionalParameter($user)));
-		}
-
-		$rows = $query->execute()->fetchAll();
-
-		return array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
-	}
-
-	/**
-	 * @param int $rootFileId
-	 * @return CachedMountInfo[]
-	 */
-	public function getMountsForRootId($rootFileId) {
-		$builder = $this->connection->getQueryBuilder();
-		$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
-			->from('mounts', 'm')
-			->innerJoin('m', 'filecache', 'f', $builder->expr()->eq('m.root_id', 'f.fileid'))
-			->where($builder->expr()->eq('root_id', $builder->createPositionalParameter($rootFileId, IQueryBuilder::PARAM_INT)));
-
-		$rows = $query->execute()->fetchAll();
-
-		return array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
-	}
-
-	/**
-	 * @param $fileId
-	 * @return array
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	private function getCacheInfoFromFileId($fileId) {
-		if (!isset($this->cacheInfoCache[$fileId])) {
-			$builder = $this->connection->getQueryBuilder();
-			$query = $builder->select('storage', 'path', 'mimetype')
-				->from('filecache')
-				->where($builder->expr()->eq('fileid', $builder->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
-
-			$row = $query->execute()->fetch();
-			if (is_array($row)) {
-				$this->cacheInfoCache[$fileId] = [
-					(int)$row['storage'],
-					$row['path'],
-					(int)$row['mimetype']
-				];
-			} else {
-				throw new NotFoundException('File with id "' . $fileId . '" not found');
-			}
-		}
-		return $this->cacheInfoCache[$fileId];
-	}
-
-	/**
-	 * @param int $fileId
-	 * @param string|null $user optionally restrict the results to a single user
-	 * @return ICachedMountInfo[]
-	 * @since 9.0.0
-	 */
-	public function getMountsForFileId($fileId, $user = null) {
-		try {
-			list($storageId, $internalPath) = $this->getCacheInfoFromFileId($fileId);
-		} catch (NotFoundException $e) {
-			return [];
-		}
-		$mountsForStorage = $this->getMountsForStorageId($storageId, $user);
-
-		// filter mounts that are from the same storage but a different directory
-		return array_filter($mountsForStorage, function (ICachedMountInfo $mount) use ($internalPath, $fileId) {
-			if ($fileId === $mount->getRootId()) {
-				return true;
-			}
-			$internalMountPath = $mount->getRootInternalPath();
-
-			return $internalMountPath === '' || substr($internalPath, 0, strlen($internalMountPath) + 1) === $internalMountPath . '/';
-		});
-	}
-
-	/**
-	 * Remove all cached mounts for a user
-	 *
-	 * @param IUser $user
-	 */
-	public function removeUserMounts(IUser $user) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->delete('mounts')
-			->where($builder->expr()->eq('user_id', $builder->createNamedParameter($user->getUID())));
-		$query->execute();
-	}
-
-	public function removeUserStorageMount($storageId, $userId) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->delete('mounts')
-			->where($builder->expr()->eq('user_id', $builder->createNamedParameter($userId)))
-			->andWhere($builder->expr()->eq('storage_id', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));
-		$query->execute();
-	}
-
-	public function remoteStorageMounts($storageId) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->delete('mounts')
-			->where($builder->expr()->eq('storage_id', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));
-		$query->execute();
-	}
+    /**
+     * @var IDBConnection
+     */
+    private $connection;
+
+    /**
+     * @var IUserManager
+     */
+    private $userManager;
+
+    /**
+     * Cached mount info.
+     * Map of $userId to ICachedMountInfo.
+     *
+     * @var ICache
+     **/
+    private $mountsForUsers;
+
+    /**
+     * @var ILogger
+     */
+    private $logger;
+
+    /**
+     * @var ICache
+     */
+    private $cacheInfoCache;
+
+    /**
+     * UserMountCache constructor.
+     *
+     * @param IDBConnection $connection
+     * @param IUserManager $userManager
+     * @param ILogger $logger
+     */
+    public function __construct(IDBConnection $connection, IUserManager $userManager, ILogger $logger) {
+        $this->connection = $connection;
+        $this->userManager = $userManager;
+        $this->logger = $logger;
+        $this->cacheInfoCache = new CappedMemoryCache();
+        $this->mountsForUsers = new CappedMemoryCache();
+    }
+
+    public function registerMounts(IUser $user, array $mounts) {
+        // filter out non-proper storages coming from unit tests
+        $mounts = array_filter($mounts, function (IMountPoint $mount) {
+            return $mount instanceof SharedMount || $mount->getStorage() && $mount->getStorage()->getCache();
+        });
+        /** @var ICachedMountInfo[] $newMounts */
+        $newMounts = array_map(function (IMountPoint $mount) use ($user) {
+            // filter out any storages which aren't scanned yet since we aren't interested in files from those storages (yet)
+            if ($mount->getStorageRootId() === -1) {
+                return null;
+            } else {
+                return new LazyStorageMountInfo($user, $mount);
+            }
+        }, $mounts);
+        $newMounts = array_values(array_filter($newMounts));
+
+        $cachedMounts = $this->getMountsForUser($user);
+        $mountDiff = function (ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
+            // since we are only looking for mounts for a specific user comparing on root id is enough
+            return $mount1->getRootId() - $mount2->getRootId();
+        };
+
+        /** @var ICachedMountInfo[] $addedMounts */
+        $addedMounts = array_udiff($newMounts, $cachedMounts, $mountDiff);
+        /** @var ICachedMountInfo[] $removedMounts */
+        $removedMounts = array_udiff($cachedMounts, $newMounts, $mountDiff);
+
+        $changedMounts = $this->findChangedMounts($newMounts, $cachedMounts);
+
+        foreach ($addedMounts as $mount) {
+            $this->addToCache($mount);
+            $this->mountsForUsers[$user->getUID()][] = $mount;
+        }
+        foreach ($removedMounts as $mount) {
+            $this->removeFromCache($mount);
+            $index = array_search($mount, $this->mountsForUsers[$user->getUID()]);
+            unset($this->mountsForUsers[$user->getUID()][$index]);
+        }
+        foreach ($changedMounts as $mount) {
+            $this->updateCachedMount($mount);
+        }
+    }
+
+    /**
+     * @param ICachedMountInfo[] $newMounts
+     * @param ICachedMountInfo[] $cachedMounts
+     * @return ICachedMountInfo[]
+     */
+    private function findChangedMounts(array $newMounts, array $cachedMounts) {
+        $changed = [];
+        foreach ($newMounts as $newMount) {
+            foreach ($cachedMounts as $cachedMount) {
+                if (
+                    $newMount->getRootId() === $cachedMount->getRootId() &&
+                    (
+                        $newMount->getMountPoint() !== $cachedMount->getMountPoint() ||
+                        $newMount->getStorageId() !== $cachedMount->getStorageId() ||
+                        $newMount->getMountId() !== $cachedMount->getMountId()
+                    )
+                ) {
+                    $changed[] = $newMount;
+                }
+            }
+        }
+        return $changed;
+    }
+
+    private function addToCache(ICachedMountInfo $mount) {
+        if ($mount->getStorageId() !== -1) {
+            $this->connection->insertIfNotExist('*PREFIX*mounts', [
+                'storage_id' => $mount->getStorageId(),
+                'root_id' => $mount->getRootId(),
+                'user_id' => $mount->getUser()->getUID(),
+                'mount_point' => $mount->getMountPoint(),
+                'mount_id' => $mount->getMountId()
+            ], ['root_id', 'user_id']);
+        } else {
+            // in some cases this is legitimate, like orphaned shares
+            $this->logger->debug('Could not get storage info for mount at ' . $mount->getMountPoint());
+        }
+    }
+
+    private function updateCachedMount(ICachedMountInfo $mount) {
+        $builder = $this->connection->getQueryBuilder();
+
+        $query = $builder->update('mounts')
+            ->set('storage_id', $builder->createNamedParameter($mount->getStorageId()))
+            ->set('mount_point', $builder->createNamedParameter($mount->getMountPoint()))
+            ->set('mount_id', $builder->createNamedParameter($mount->getMountId(), IQueryBuilder::PARAM_INT))
+            ->where($builder->expr()->eq('user_id', $builder->createNamedParameter($mount->getUser()->getUID())))
+            ->andWhere($builder->expr()->eq('root_id', $builder->createNamedParameter($mount->getRootId(), IQueryBuilder::PARAM_INT)));
+
+        $query->execute();
+    }
+
+    private function removeFromCache(ICachedMountInfo $mount) {
+        $builder = $this->connection->getQueryBuilder();
+
+        $query = $builder->delete('mounts')
+            ->where($builder->expr()->eq('user_id', $builder->createNamedParameter($mount->getUser()->getUID())))
+            ->andWhere($builder->expr()->eq('root_id', $builder->createNamedParameter($mount->getRootId(), IQueryBuilder::PARAM_INT)));
+        $query->execute();
+    }
+
+    private function dbRowToMountInfo(array $row) {
+        $user = $this->userManager->get($row['user_id']);
+        if (is_null($user)) {
+            return null;
+        }
+        return new CachedMountInfo($user, (int)$row['storage_id'], (int)$row['root_id'], $row['mount_point'], $row['mount_id'], isset($row['path'])? $row['path']:'');
+    }
+
+    /**
+     * @param IUser $user
+     * @return ICachedMountInfo[]
+     */
+    public function getMountsForUser(IUser $user) {
+        if (!isset($this->mountsForUsers[$user->getUID()])) {
+            $builder = $this->connection->getQueryBuilder();
+            $query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
+                ->from('mounts', 'm')
+                ->innerJoin('m', 'filecache', 'f', $builder->expr()->eq('m.root_id', 'f.fileid'))
+                ->where($builder->expr()->eq('user_id', $builder->createPositionalParameter($user->getUID())));
+
+            $rows = $query->execute()->fetchAll();
+
+            $this->mountsForUsers[$user->getUID()] = array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
+        }
+        return $this->mountsForUsers[$user->getUID()];
+    }
+
+    /**
+     * @param int $numericStorageId
+     * @param string|null $user limit the results to a single user
+     * @return CachedMountInfo[]
+     */
+    public function getMountsForStorageId($numericStorageId, $user = null) {
+        $builder = $this->connection->getQueryBuilder();
+        $query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
+            ->from('mounts', 'm')
+            ->innerJoin('m', 'filecache', 'f' , $builder->expr()->eq('m.root_id', 'f.fileid'))
+            ->where($builder->expr()->eq('storage_id', $builder->createPositionalParameter($numericStorageId, IQueryBuilder::PARAM_INT)));
+
+        if ($user) {
+            $query->andWhere($builder->expr()->eq('user_id', $builder->createPositionalParameter($user)));
+        }
+
+        $rows = $query->execute()->fetchAll();
+
+        return array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
+    }
+
+    /**
+     * @param int $rootFileId
+     * @return CachedMountInfo[]
+     */
+    public function getMountsForRootId($rootFileId) {
+        $builder = $this->connection->getQueryBuilder();
+        $query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
+            ->from('mounts', 'm')
+            ->innerJoin('m', 'filecache', 'f', $builder->expr()->eq('m.root_id', 'f.fileid'))
+            ->where($builder->expr()->eq('root_id', $builder->createPositionalParameter($rootFileId, IQueryBuilder::PARAM_INT)));
+
+        $rows = $query->execute()->fetchAll();
+
+        return array_filter(array_map([$this, 'dbRowToMountInfo'], $rows));
+    }
+
+    /**
+     * @param $fileId
+     * @return array
+     * @throws \OCP\Files\NotFoundException
+     */
+    private function getCacheInfoFromFileId($fileId) {
+        if (!isset($this->cacheInfoCache[$fileId])) {
+            $builder = $this->connection->getQueryBuilder();
+            $query = $builder->select('storage', 'path', 'mimetype')
+                ->from('filecache')
+                ->where($builder->expr()->eq('fileid', $builder->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
+
+            $row = $query->execute()->fetch();
+            if (is_array($row)) {
+                $this->cacheInfoCache[$fileId] = [
+                    (int)$row['storage'],
+                    $row['path'],
+                    (int)$row['mimetype']
+                ];
+            } else {
+                throw new NotFoundException('File with id "' . $fileId . '" not found');
+            }
+        }
+        return $this->cacheInfoCache[$fileId];
+    }
+
+    /**
+     * @param int $fileId
+     * @param string|null $user optionally restrict the results to a single user
+     * @return ICachedMountInfo[]
+     * @since 9.0.0
+     */
+    public function getMountsForFileId($fileId, $user = null) {
+        try {
+            list($storageId, $internalPath) = $this->getCacheInfoFromFileId($fileId);
+        } catch (NotFoundException $e) {
+            return [];
+        }
+        $mountsForStorage = $this->getMountsForStorageId($storageId, $user);
+
+        // filter mounts that are from the same storage but a different directory
+        return array_filter($mountsForStorage, function (ICachedMountInfo $mount) use ($internalPath, $fileId) {
+            if ($fileId === $mount->getRootId()) {
+                return true;
+            }
+            $internalMountPath = $mount->getRootInternalPath();
+
+            return $internalMountPath === '' || substr($internalPath, 0, strlen($internalMountPath) + 1) === $internalMountPath . '/';
+        });
+    }
+
+    /**
+     * Remove all cached mounts for a user
+     *
+     * @param IUser $user
+     */
+    public function removeUserMounts(IUser $user) {
+        $builder = $this->connection->getQueryBuilder();
+
+        $query = $builder->delete('mounts')
+            ->where($builder->expr()->eq('user_id', $builder->createNamedParameter($user->getUID())));
+        $query->execute();
+    }
+
+    public function removeUserStorageMount($storageId, $userId) {
+        $builder = $this->connection->getQueryBuilder();
+
+        $query = $builder->delete('mounts')
+            ->where($builder->expr()->eq('user_id', $builder->createNamedParameter($userId)))
+            ->andWhere($builder->expr()->eq('storage_id', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));
+        $query->execute();
+    }
+
+    public function remoteStorageMounts($storageId) {
+        $builder = $this->connection->getQueryBuilder();
+
+        $query = $builder->delete('mounts')
+            ->where($builder->expr()->eq('storage_id', $builder->createNamedParameter($storageId, IQueryBuilder::PARAM_INT)));
+        $query->execute();
+    }
 }

Spacing +11 added lines, -11 removed lines

@@ -89,11 +89,11 @@ 
 
 	public function registerMounts(IUser $user, array $mounts) {
 		// filter out non-proper storages coming from unit tests
-		$mounts = array_filter($mounts, function (IMountPoint $mount) {
+		$mounts = array_filter($mounts, function(IMountPoint $mount) {
 			return $mount instanceof SharedMount || $mount->getStorage() && $mount->getStorage()->getCache();
 		});
 		/** @var ICachedMountInfo[] $newMounts */
-		$newMounts = array_map(function (IMountPoint $mount) use ($user) {
+		$newMounts = array_map(function(IMountPoint $mount) use ($user) {
 			// filter out any storages which aren't scanned yet since we aren't interested in files from those storages (yet)
 			if ($mount->getStorageRootId() === -1) {
 				return null;
@@ -104,7 +104,7 @@ 
 		$newMounts = array_values(array_filter($newMounts));
 
 		$cachedMounts = $this->getMountsForUser($user);
-		$mountDiff = function (ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
+		$mountDiff = function(ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
 			// since we are only looking for mounts for a specific user comparing on root id is enough
 			return $mount1->getRootId() - $mount2->getRootId();
 		};
@@ -165,7 +165,7 @@ 
 			], ['root_id', 'user_id']);
 		} else {
 			// in some cases this is legitimate, like orphaned shares
-			$this->logger->debug('Could not get storage info for mount at ' . $mount->getMountPoint());
+			$this->logger->debug('Could not get storage info for mount at '.$mount->getMountPoint());
 		}
 	}
 
@@ -196,7 +196,7 @@ 
 		if (is_null($user)) {
 			return null;
 		}
-		return new CachedMountInfo($user, (int)$row['storage_id'], (int)$row['root_id'], $row['mount_point'], $row['mount_id'], isset($row['path'])? $row['path']:'');
+		return new CachedMountInfo($user, (int) $row['storage_id'], (int) $row['root_id'], $row['mount_point'], $row['mount_id'], isset($row['path']) ? $row['path'] : '');
 	}
 
 	/**
@@ -227,7 +227,7 @@ 
 		$builder = $this->connection->getQueryBuilder();
 		$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point', 'mount_id', 'f.path')
 			->from('mounts', 'm')
-			->innerJoin('m', 'filecache', 'f' , $builder->expr()->eq('m.root_id', 'f.fileid'))
+			->innerJoin('m', 'filecache', 'f', $builder->expr()->eq('m.root_id', 'f.fileid'))
 			->where($builder->expr()->eq('storage_id', $builder->createPositionalParameter($numericStorageId, IQueryBuilder::PARAM_INT)));
 
 		if ($user) {
@@ -270,12 +270,12 @@ 
 			$row = $query->execute()->fetch();
 			if (is_array($row)) {
 				$this->cacheInfoCache[$fileId] = [
-					(int)$row['storage'],
+					(int) $row['storage'],
 					$row['path'],
-					(int)$row['mimetype']
+					(int) $row['mimetype']
 				];
 			} else {
-				throw new NotFoundException('File with id "' . $fileId . '" not found');
+				throw new NotFoundException('File with id "'.$fileId.'" not found');
 			}
 		}
 		return $this->cacheInfoCache[$fileId];
@@ -296,13 +296,13 @@ 
 		$mountsForStorage = $this->getMountsForStorageId($storageId, $user);
 
 		// filter mounts that are from the same storage but a different directory
-		return array_filter($mountsForStorage, function (ICachedMountInfo $mount) use ($internalPath, $fileId) {
+		return array_filter($mountsForStorage, function(ICachedMountInfo $mount) use ($internalPath, $fileId) {
 			if ($fileId === $mount->getRootId()) {
 				return true;
 			}
 			$internalMountPath = $mount->getRootInternalPath();
 
-			return $internalMountPath === '' || substr($internalPath, 0, strlen($internalMountPath) + 1) === $internalMountPath . '/';
+			return $internalMountPath === '' || substr($internalPath, 0, strlen($internalMountPath) + 1) === $internalMountPath.'/';
 		});
 	}
 

lib/private/Files/Node/LazyRoot.php

Doc Comments +1 added lines, -1 removed lines

@@ -52,7 +52,7 @@
 	 * Magic method to first get the real rootFolder and then
 	 * call $method with $args on it
 	 *
-	 * @param $method
+	 * @param string $method
 	 * @param $args
 	 * @return mixed
 	 */

Indentation +443 added lines, -443 removed lines

@@ -34,447 +34,447 @@
  * @package OC\Files\Node
  */
 class LazyRoot implements IRootFolder {
-	/** @var \Closure */
-	private $rootFolderClosure;
-
-	/** @var IRootFolder */
-	private $rootFolder;
-
-	/**
-	 * LazyRoot constructor.
-	 *
-	 * @param \Closure $rootFolderClosure
-	 */
-	public function __construct(\Closure $rootFolderClosure) {
-		$this->rootFolderClosure = $rootFolderClosure;
-	}
-
-	/**
-	 * Magic method to first get the real rootFolder and then
-	 * call $method with $args on it
-	 *
-	 * @param $method
-	 * @param $args
-	 * @return mixed
-	 */
-	public function __call($method, $args) {
-		if ($this->rootFolder === null) {
-			$this->rootFolder = call_user_func($this->rootFolderClosure);
-		}
-
-		return call_user_func_array([$this->rootFolder, $method], $args);
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getUser() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function listen($scope, $method, callable $callback) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function removeListener($scope = null, $method = null, callable $callback = null) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function emit($scope, $method, $arguments = array()) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function mount($storage, $mountPoint, $arguments = array()) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMount($mountPoint) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMountsIn($mountPoint) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMountByStorageId($storageId) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMountByNumericStorageId($numericId) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function unMount($mount) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function get($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function rename($targetPath) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function delete() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function copy($targetPath) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function touch($mtime = null) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getStorage() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getPath() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getInternalPath() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getId() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function stat() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMTime() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getSize() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getEtag() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getPermissions() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isReadable() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isUpdateable() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isDeletable() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isShareable() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getParent() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getName() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getUserFolder($userId) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMimetype() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMimePart() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isEncrypted() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getType() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isShared() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isMounted() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getMountPoint() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getOwner() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getChecksum() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getFullPath($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getRelativePath($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isSubNode($node) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getDirectoryListing() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function nodeExists($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function newFolder($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function newFile($path) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function search($query) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function searchByMime($mimetype) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function searchByTag($tag, $userId) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getById($id) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getFreeSpace() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function isCreatable() {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getNonExistingName($name) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function move($targetPath) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function lock($type) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function changeLock($targetType) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function unlock($type) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function getRecent($limit, $offset = 0) {
-		return $this->__call(__FUNCTION__, func_get_args());
-	}
+    /** @var \Closure */
+    private $rootFolderClosure;
+
+    /** @var IRootFolder */
+    private $rootFolder;
+
+    /**
+     * LazyRoot constructor.
+     *
+     * @param \Closure $rootFolderClosure
+     */
+    public function __construct(\Closure $rootFolderClosure) {
+        $this->rootFolderClosure = $rootFolderClosure;
+    }
+
+    /**
+     * Magic method to first get the real rootFolder and then
+     * call $method with $args on it
+     *
+     * @param $method
+     * @param $args
+     * @return mixed
+     */
+    public function __call($method, $args) {
+        if ($this->rootFolder === null) {
+            $this->rootFolder = call_user_func($this->rootFolderClosure);
+        }
+
+        return call_user_func_array([$this->rootFolder, $method], $args);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getUser() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function listen($scope, $method, callable $callback) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function removeListener($scope = null, $method = null, callable $callback = null) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function emit($scope, $method, $arguments = array()) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function mount($storage, $mountPoint, $arguments = array()) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMount($mountPoint) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMountsIn($mountPoint) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMountByStorageId($storageId) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMountByNumericStorageId($numericId) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function unMount($mount) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function get($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function rename($targetPath) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function delete() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function copy($targetPath) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function touch($mtime = null) {
+        $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getStorage() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getPath() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getInternalPath() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getId() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function stat() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMTime() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getSize() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getEtag() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getPermissions() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isReadable() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isUpdateable() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isDeletable() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isShareable() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getParent() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getName() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getUserFolder($userId) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMimetype() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMimePart() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isEncrypted() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getType() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isShared() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isMounted() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getMountPoint() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getOwner() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getChecksum() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getFullPath($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getRelativePath($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isSubNode($node) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getDirectoryListing() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function nodeExists($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function newFolder($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function newFile($path) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function search($query) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function searchByMime($mimetype) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function searchByTag($tag, $userId) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getById($id) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getFreeSpace() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function isCreatable() {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getNonExistingName($name) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function move($targetPath) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function lock($type) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function changeLock($targetType) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function unlock($type) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getRecent($limit, $offset = 0) {
+        return $this->__call(__FUNCTION__, func_get_args());
+    }
 }

lib/private/Files/Storage/Flysystem.php

Doc Comments +3 added lines

@@ -54,6 +54,9 @@
 		$this->flysystem->addPlugin(new GetWithMetadata());
 	}
 
+	/**
+	 * @param string $path
+	 */
 	protected function buildPath($path) {
 		$fullPath = \OC\Files\Filesystem::normalizePath($this->root . '/' . $path);
 		return ltrim($fullPath, '/');

Indentation +201 added lines, -201 removed lines

@@ -35,223 +35,223 @@
  * To use: subclass and call $this->buildFlysystem with the flysystem adapter of choice
  */
 abstract class Flysystem extends Common {
-	/**
-	 * @var Filesystem
-	 */
-	protected $flysystem;
+    /**
+     * @var Filesystem
+     */
+    protected $flysystem;
 
-	/**
-	 * @var string
-	 */
-	protected $root = '';
+    /**
+     * @var string
+     */
+    protected $root = '';
 
-	/**
-	 * Initialize the storage backend with a flyssytem adapter
-	 *
-	 * @param \League\Flysystem\AdapterInterface $adapter
-	 */
-	protected function buildFlySystem(AdapterInterface $adapter) {
-		$this->flysystem = new Filesystem($adapter);
-		$this->flysystem->addPlugin(new GetWithMetadata());
-	}
+    /**
+     * Initialize the storage backend with a flyssytem adapter
+     *
+     * @param \League\Flysystem\AdapterInterface $adapter
+     */
+    protected function buildFlySystem(AdapterInterface $adapter) {
+        $this->flysystem = new Filesystem($adapter);
+        $this->flysystem->addPlugin(new GetWithMetadata());
+    }
 
-	protected function buildPath($path) {
-		$fullPath = \OC\Files\Filesystem::normalizePath($this->root . '/' . $path);
-		return ltrim($fullPath, '/');
-	}
+    protected function buildPath($path) {
+        $fullPath = \OC\Files\Filesystem::normalizePath($this->root . '/' . $path);
+        return ltrim($fullPath, '/');
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function file_get_contents($path) {
-		return $this->flysystem->read($this->buildPath($path));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function file_get_contents($path) {
+        return $this->flysystem->read($this->buildPath($path));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function file_put_contents($path, $data) {
-		return $this->flysystem->put($this->buildPath($path), $data);
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function file_put_contents($path, $data) {
+        return $this->flysystem->put($this->buildPath($path), $data);
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function file_exists($path) {
-		return $this->flysystem->has($this->buildPath($path));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function file_exists($path) {
+        return $this->flysystem->has($this->buildPath($path));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function unlink($path) {
-		if ($this->is_dir($path)) {
-			return $this->rmdir($path);
-		}
-		try {
-			return $this->flysystem->delete($this->buildPath($path));
-		} catch (FileNotFoundException $e) {
-			return false;
-		}
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function unlink($path) {
+        if ($this->is_dir($path)) {
+            return $this->rmdir($path);
+        }
+        try {
+            return $this->flysystem->delete($this->buildPath($path));
+        } catch (FileNotFoundException $e) {
+            return false;
+        }
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function rename($source, $target) {
-		if ($this->file_exists($target)) {
-			$this->unlink($target);
-		}
-		return $this->flysystem->rename($this->buildPath($source), $this->buildPath($target));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function rename($source, $target) {
+        if ($this->file_exists($target)) {
+            $this->unlink($target);
+        }
+        return $this->flysystem->rename($this->buildPath($source), $this->buildPath($target));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function copy($source, $target) {
-		if ($this->file_exists($target)) {
-			$this->unlink($target);
-		}
-		return $this->flysystem->copy($this->buildPath($source), $this->buildPath($target));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function copy($source, $target) {
+        if ($this->file_exists($target)) {
+            $this->unlink($target);
+        }
+        return $this->flysystem->copy($this->buildPath($source), $this->buildPath($target));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function filesize($path) {
-		if ($this->is_dir($path)) {
-			return 0;
-		} else {
-			return $this->flysystem->getSize($this->buildPath($path));
-		}
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function filesize($path) {
+        if ($this->is_dir($path)) {
+            return 0;
+        } else {
+            return $this->flysystem->getSize($this->buildPath($path));
+        }
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function mkdir($path) {
-		if ($this->file_exists($path)) {
-			return false;
-		}
-		return $this->flysystem->createDir($this->buildPath($path));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function mkdir($path) {
+        if ($this->file_exists($path)) {
+            return false;
+        }
+        return $this->flysystem->createDir($this->buildPath($path));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function filemtime($path) {
-		return $this->flysystem->getTimestamp($this->buildPath($path));
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function filemtime($path) {
+        return $this->flysystem->getTimestamp($this->buildPath($path));
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function rmdir($path) {
-		try {
-			return @$this->flysystem->deleteDir($this->buildPath($path));
-		} catch (FileNotFoundException $e) {
-			return false;
-		}
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function rmdir($path) {
+        try {
+            return @$this->flysystem->deleteDir($this->buildPath($path));
+        } catch (FileNotFoundException $e) {
+            return false;
+        }
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function opendir($path) {
-		try {
-			$content = $this->flysystem->listContents($this->buildPath($path));
-		} catch (FileNotFoundException $e) {
-			return false;
-		}
-		$names = array_map(function ($object) {
-			return $object['basename'];
-		}, $content);
-		return IteratorDirectory::wrap($names);
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function opendir($path) {
+        try {
+            $content = $this->flysystem->listContents($this->buildPath($path));
+        } catch (FileNotFoundException $e) {
+            return false;
+        }
+        $names = array_map(function ($object) {
+            return $object['basename'];
+        }, $content);
+        return IteratorDirectory::wrap($names);
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function fopen($path, $mode) {
-		$fullPath = $this->buildPath($path);
-		$useExisting = true;
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				try {
-					return $this->flysystem->readStream($fullPath);
-				} catch (FileNotFoundException $e) {
-					return false;
-				}
-			case 'w':
-			case 'w+':
-			case 'wb':
-			case 'wb+':
-				$useExisting = false;
-			case 'a':
-			case 'ab':
-			case 'r+':
-			case 'a+':
-			case 'x':
-			case 'x+':
-			case 'c':
-			case 'c+':
-				//emulate these
-				if ($useExisting and $this->file_exists($path)) {
-					if (!$this->isUpdatable($path)) {
-						return false;
-					}
-					$tmpFile = $this->getCachedFile($path);
-				} else {
-					if (!$this->isCreatable(dirname($path))) {
-						return false;
-					}
-					$tmpFile = \OCP\Files::tmpFile();
-				}
-				$source = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($source, null, null, function () use ($tmpFile, $fullPath) {
-					$this->flysystem->putStream($fullPath, fopen($tmpFile, 'r'));
-					unlink($tmpFile);
-				});
-		}
-		return false;
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function fopen($path, $mode) {
+        $fullPath = $this->buildPath($path);
+        $useExisting = true;
+        switch ($mode) {
+            case 'r':
+            case 'rb':
+                try {
+                    return $this->flysystem->readStream($fullPath);
+                } catch (FileNotFoundException $e) {
+                    return false;
+                }
+            case 'w':
+            case 'w+':
+            case 'wb':
+            case 'wb+':
+                $useExisting = false;
+            case 'a':
+            case 'ab':
+            case 'r+':
+            case 'a+':
+            case 'x':
+            case 'x+':
+            case 'c':
+            case 'c+':
+                //emulate these
+                if ($useExisting and $this->file_exists($path)) {
+                    if (!$this->isUpdatable($path)) {
+                        return false;
+                    }
+                    $tmpFile = $this->getCachedFile($path);
+                } else {
+                    if (!$this->isCreatable(dirname($path))) {
+                        return false;
+                    }
+                    $tmpFile = \OCP\Files::tmpFile();
+                }
+                $source = fopen($tmpFile, $mode);
+                return CallbackWrapper::wrap($source, null, null, function () use ($tmpFile, $fullPath) {
+                    $this->flysystem->putStream($fullPath, fopen($tmpFile, 'r'));
+                    unlink($tmpFile);
+                });
+        }
+        return false;
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function touch($path, $mtime = null) {
-		if ($this->file_exists($path)) {
-			return false;
-		} else {
-			$this->file_put_contents($path, '');
-			return true;
-		}
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function touch($path, $mtime = null) {
+        if ($this->file_exists($path)) {
+            return false;
+        } else {
+            $this->file_put_contents($path, '');
+            return true;
+        }
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function stat($path) {
-		$info = $this->flysystem->getWithMetadata($this->buildPath($path), ['timestamp', 'size']);
-		return [
-			'mtime' => $info['timestamp'],
-			'size' => $info['size']
-		];
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function stat($path) {
+        $info = $this->flysystem->getWithMetadata($this->buildPath($path), ['timestamp', 'size']);
+        return [
+            'mtime' => $info['timestamp'],
+            'size' => $info['size']
+        ];
+    }
 
-	/**
-	 * {@inheritdoc}
-	 */
-	public function filetype($path) {
-		if ($path === '' or $path === '/' or $path === '.') {
-			return 'dir';
-		}
-		try {
-			$info = $this->flysystem->getMetadata($this->buildPath($path));
-		} catch (FileNotFoundException $e) {
-			return false;
-		}
-		return $info['type'];
-	}
+    /**
+     * {@inheritdoc}
+     */
+    public function filetype($path) {
+        if ($path === '' or $path === '/' or $path === '.') {
+            return 'dir';
+        }
+        try {
+            $info = $this->flysystem->getMetadata($this->buildPath($path));
+        } catch (FileNotFoundException $e) {
+            return false;
+        }
+        return $info['type'];
+    }
 }

Spacing +3 added lines, -3 removed lines

@@ -56,7 +56,7 @@ 
 	}
 
 	protected function buildPath($path) {
-		$fullPath = \OC\Files\Filesystem::normalizePath($this->root . '/' . $path);
+		$fullPath = \OC\Files\Filesystem::normalizePath($this->root.'/'.$path);
 		return ltrim($fullPath, '/');
 	}
 
@@ -163,7 +163,7 @@ 
 		} catch (FileNotFoundException $e) {
 			return false;
 		}
-		$names = array_map(function ($object) {
+		$names = array_map(function($object) {
 			return $object['basename'];
 		}, $content);
 		return IteratorDirectory::wrap($names);
@@ -209,7 +209,7 @@ 
 					$tmpFile = \OCP\Files::tmpFile();
 				}
 				$source = fopen($tmpFile, $mode);
-				return CallbackWrapper::wrap($source, null, null, function () use ($tmpFile, $fullPath) {
+				return CallbackWrapper::wrap($source, null, null, function() use ($tmpFile, $fullPath) {
 					$this->flysystem->putStream($fullPath, fopen($tmpFile, 'r'));
 					unlink($tmpFile);
 				});

lib/private/Files/Storage/Wrapper/Quota.php

Doc Comments +1 added lines, -1 removed lines

@@ -159,7 +159,7 @@
 	 * Checks whether the given path is a part file
 	 *
 	 * @param string $path Path that may identify a .part file
-	 * @return string File path without .part extension
+	 * @return boolean File path without .part extension
 	 * @note this is needed for reusing keys
 	 */
 	private function isPartFile($path) {

Indentation +168 added lines, -168 removed lines

@@ -30,172 +30,172 @@
 
 class Quota extends Wrapper {
 
-	/**
-	 * @var int $quota
-	 */
-	protected $quota;
-
-	/**
-	 * @var string $sizeRoot
-	 */
-	protected $sizeRoot;
-
-	/**
-	 * @param array $parameters
-	 */
-	public function __construct($parameters) {
-		$this->storage = $parameters['storage'];
-		$this->quota = $parameters['quota'];
-		$this->sizeRoot = isset($parameters['root']) ? $parameters['root'] : '';
-	}
-
-	/**
-	 * @return int quota value
-	 */
-	public function getQuota() {
-		return $this->quota;
-	}
-
-	/**
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage $storage
-	 */
-	protected function getSize($path, $storage = null) {
-		if (is_null($storage)) {
-			$cache = $this->getCache();
-		} else {
-			$cache = $storage->getCache();
-		}
-		$data = $cache->get($path);
-		if ($data instanceof ICacheEntry and isset($data['size'])) {
-			return $data['size'];
-		} else {
-			return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
-		}
-	}
-
-	/**
-	 * Get free space as limited by the quota
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function free_space($path) {
-		if ($this->quota < 0) {
-			return $this->storage->free_space($path);
-		} else {
-			$used = $this->getSize($this->sizeRoot);
-			if ($used < 0) {
-				return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
-			} else {
-				$free = $this->storage->free_space($path);
-				$quotaFree = max($this->quota - $used, 0);
-				// if free space is known
-				if ($free >= 0) {
-					$free = min($free, $quotaFree);
-				} else {
-					$free = $quotaFree;
-				}
-				return $free;
-			}
-		}
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_put_contents.php
-	 *
-	 * @param string $path
-	 * @param string $data
-	 * @return bool
-	 */
-	public function file_put_contents($path, $data) {
-		$free = $this->free_space('');
-		if ($free < 0 or strlen($data) < $free) {
-			return $this->storage->file_put_contents($path, $data);
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $source
-	 * @param string $target
-	 * @return bool
-	 */
-	public function copy($source, $target) {
-		$free = $this->free_space('');
-		if ($free < 0 or $this->getSize($source) < $free) {
-			return $this->storage->copy($source, $target);
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	public function fopen($path, $mode) {
-		$source = $this->storage->fopen($path, $mode);
-
-		// don't apply quota for part files
-		if (!$this->isPartFile($path)) {
-			$free = $this->free_space('');
-			if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
-				// only apply quota for files, not metadata, trash or others
-				if (strpos(ltrim($path, '/'), 'files/') === 0) {
-					return \OC\Files\Stream\Quota::wrap($source, $free);
-				}
-			}
-		}
-		return $source;
-	}
-
-	/**
-	 * Checks whether the given path is a part file
-	 *
-	 * @param string $path Path that may identify a .part file
-	 * @return string File path without .part extension
-	 * @note this is needed for reusing keys
-	 */
-	private function isPartFile($path) {
-		$extension = pathinfo($path, PATHINFO_EXTENSION);
-
-		return ($extension === 'part');
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		$free = $this->free_space('');
-		if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
-			return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		$free = $this->free_space('');
-		if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
-			return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		} else {
-			return false;
-		}
-	}
+    /**
+     * @var int $quota
+     */
+    protected $quota;
+
+    /**
+     * @var string $sizeRoot
+     */
+    protected $sizeRoot;
+
+    /**
+     * @param array $parameters
+     */
+    public function __construct($parameters) {
+        $this->storage = $parameters['storage'];
+        $this->quota = $parameters['quota'];
+        $this->sizeRoot = isset($parameters['root']) ? $parameters['root'] : '';
+    }
+
+    /**
+     * @return int quota value
+     */
+    public function getQuota() {
+        return $this->quota;
+    }
+
+    /**
+     * @param string $path
+     * @param \OC\Files\Storage\Storage $storage
+     */
+    protected function getSize($path, $storage = null) {
+        if (is_null($storage)) {
+            $cache = $this->getCache();
+        } else {
+            $cache = $storage->getCache();
+        }
+        $data = $cache->get($path);
+        if ($data instanceof ICacheEntry and isset($data['size'])) {
+            return $data['size'];
+        } else {
+            return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
+        }
+    }
+
+    /**
+     * Get free space as limited by the quota
+     *
+     * @param string $path
+     * @return int
+     */
+    public function free_space($path) {
+        if ($this->quota < 0) {
+            return $this->storage->free_space($path);
+        } else {
+            $used = $this->getSize($this->sizeRoot);
+            if ($used < 0) {
+                return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
+            } else {
+                $free = $this->storage->free_space($path);
+                $quotaFree = max($this->quota - $used, 0);
+                // if free space is known
+                if ($free >= 0) {
+                    $free = min($free, $quotaFree);
+                } else {
+                    $free = $quotaFree;
+                }
+                return $free;
+            }
+        }
+    }
+
+    /**
+     * see http://php.net/manual/en/function.file_put_contents.php
+     *
+     * @param string $path
+     * @param string $data
+     * @return bool
+     */
+    public function file_put_contents($path, $data) {
+        $free = $this->free_space('');
+        if ($free < 0 or strlen($data) < $free) {
+            return $this->storage->file_put_contents($path, $data);
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * see http://php.net/manual/en/function.copy.php
+     *
+     * @param string $source
+     * @param string $target
+     * @return bool
+     */
+    public function copy($source, $target) {
+        $free = $this->free_space('');
+        if ($free < 0 or $this->getSize($source) < $free) {
+            return $this->storage->copy($source, $target);
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * see http://php.net/manual/en/function.fopen.php
+     *
+     * @param string $path
+     * @param string $mode
+     * @return resource
+     */
+    public function fopen($path, $mode) {
+        $source = $this->storage->fopen($path, $mode);
+
+        // don't apply quota for part files
+        if (!$this->isPartFile($path)) {
+            $free = $this->free_space('');
+            if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
+                // only apply quota for files, not metadata, trash or others
+                if (strpos(ltrim($path, '/'), 'files/') === 0) {
+                    return \OC\Files\Stream\Quota::wrap($source, $free);
+                }
+            }
+        }
+        return $source;
+    }
+
+    /**
+     * Checks whether the given path is a part file
+     *
+     * @param string $path Path that may identify a .part file
+     * @return string File path without .part extension
+     * @note this is needed for reusing keys
+     */
+    private function isPartFile($path) {
+        $extension = pathinfo($path, PATHINFO_EXTENSION);
+
+        return ($extension === 'part');
+    }
+
+    /**
+     * @param \OCP\Files\Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @return bool
+     */
+    public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+        $free = $this->free_space('');
+        if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
+            return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        } else {
+            return false;
+        }
+    }
+
+    /**
+     * @param \OCP\Files\Storage $sourceStorage
+     * @param string $sourceInternalPath
+     * @param string $targetInternalPath
+     * @return bool
+     */
+    public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
+        $free = $this->free_space('');
+        if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
+            return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
+        } else {
+            return false;
+        }
+    }
 }

lib/private/L10N/L10N.php

Doc Comments +1 added lines, -1 removed lines

@@ -176,7 +176,7 @@
 	 * Returns an associative array with all translations
 	 *
 	 * Called by \OC_L10N_String
-	 * @return array
+	 * @return string[]
 	 */
 	public function getTranslations() {
 		return $this->translations;

Indentation +186 added lines, -186 removed lines

@@ -28,190 +28,190 @@
 
 class L10N implements IL10N {
 
-	/** @var IFactory */
-	protected $factory;
-
-	/** @var string App of this object */
-	protected $app;
-
-	/** @var string Language of this object */
-	protected $lang;
-
-	/** @var string Plural forms (string) */
-	private $pluralFormString = 'nplurals=2; plural=(n != 1);';
-
-	/** @var string Plural forms (function) */
-	private $pluralFormFunction = null;
-
-	/** @var string[] */
-	private $translations = [];
-
-	/**
-	 * @param IFactory $factory
-	 * @param string $app
-	 * @param string $lang
-	 * @param array $files
-	 */
-	public function __construct(IFactory $factory, $app, $lang, array $files) {
-		$this->factory = $factory;
-		$this->app = $app;
-		$this->lang = $lang;
-
-		$this->translations = [];
-		foreach ($files as $languageFile) {
-			$this->load($languageFile);
-		}
-	}
-
-	/**
-	 * The code (en, de, ...) of the language that is used for this instance
-	 *
-	 * @return string language
-	 */
-	public function getLanguageCode() {
-		return $this->lang;
-	}
-
-	/**
-	 * Translating
-	 * @param string $text The text we need a translation for
-	 * @param array $parameters default:array() Parameters for sprintf
-	 * @return string Translation or the same text
-	 *
-	 * Returns the translation. If no translation is found, $text will be
-	 * returned.
-	 */
-	public function t($text, $parameters = array()) {
-		return (string) new \OC_L10N_String($this, $text, $parameters);
-	}
-
-	/**
-	 * Translating
-	 * @param string $text_singular the string to translate for exactly one object
-	 * @param string $text_plural the string to translate for n objects
-	 * @param integer $count Number of objects
-	 * @param array $parameters default:array() Parameters for sprintf
-	 * @return string Translation or the same text
-	 *
-	 * Returns the translation. If no translation is found, $text will be
-	 * returned. %n will be replaced with the number of objects.
-	 *
-	 * The correct plural is determined by the plural_forms-function
-	 * provided by the po file.
-	 *
-	 */
-	public function n($text_singular, $text_plural, $count, $parameters = array()) {
-		$identifier = "_${text_singular}_::_${text_plural}_";
-		if (isset($this->translations[$identifier])) {
-			return (string) new \OC_L10N_String($this, $identifier, $parameters, $count);
-		} else {
-			if ($count === 1) {
-				return (string) new \OC_L10N_String($this, $text_singular, $parameters, $count);
-			} else {
-				return (string) new \OC_L10N_String($this, $text_plural, $parameters, $count);
-			}
-		}
-	}
-
-	/**
-	 * Localization
-	 * @param string $type Type of localization
-	 * @param \DateTime|int|string $data parameters for this localization
-	 * @param array $options
-	 * @return string|int|false
-	 *
-	 * Returns the localized data.
-	 *
-	 * Implemented types:
-	 *  - date
-	 *    - Creates a date
-	 *    - params: timestamp (int/string)
-	 *  - datetime
-	 *    - Creates date and time
-	 *    - params: timestamp (int/string)
-	 *  - time
-	 *    - Creates a time
-	 *    - params: timestamp (int/string)
-	 *  - firstday: Returns the first day of the week (0 sunday - 6 saturday)
-	 *  - jsdate: Returns the short JS date format
-	 */
-	public function l($type, $data = null, $options = array()) {
-		// Use the language of the instance
-		$locale = $this->getLanguageCode();
-		if ($locale === 'sr@latin') {
-			$locale = 'sr_latn';
-		}
-
-		if ($type === 'firstday') {
-			return (int) Calendar::getFirstWeekday($locale);
-		}
-		if ($type === 'jsdate') {
-			return (string) Calendar::getDateFormat('short', $locale);
-		}
-
-		$value = new \DateTime();
-		if ($data instanceof \DateTime) {
-			$value = $data;
-		} else if (is_string($data) && !is_numeric($data)) {
-			$data = strtotime($data);
-			$value->setTimestamp($data);
-		} else if ($data !== null) {
-			$value->setTimestamp($data);
-		}
-
-		$options = array_merge(array('width' => 'long'), $options);
-		$width = $options['width'];
-		switch ($type) {
-			case 'date':
-				return (string) Calendar::formatDate($value, $width, $locale);
-			case 'datetime':
-				return (string) Calendar::formatDatetime($value, $width, $locale);
-			case 'time':
-				return (string) Calendar::formatTime($value, $width, $locale);
-			default:
-				return false;
-		}
-	}
-
-	/**
-	 * Returns an associative array with all translations
-	 *
-	 * Called by \OC_L10N_String
-	 * @return array
-	 */
-	public function getTranslations() {
-		return $this->translations;
-	}
-
-	/**
-	 * Returnsed function accepts the argument $n
-	 *
-	 * Called by \OC_L10N_String
-	 * @return string the plural form function
-	 */
-	public function getPluralFormFunction() {
-		if (is_null($this->pluralFormFunction)) {
-			$this->pluralFormFunction = $this->factory->createPluralFunction($this->pluralFormString);
-		}
-		return $this->pluralFormFunction;
-	}
-
-	/**
-	 * @param $translationFile
-	 * @return bool
-	 */
-	protected function load($translationFile) {
-		$json = json_decode(file_get_contents($translationFile), true);
-		if (!is_array($json)) {
-			$jsonError = json_last_error();
-			\OC::$server->getLogger()->warning("Failed to load $translationFile - json error code: $jsonError", ['app' => 'l10n']);
-			return false;
-		}
-
-		if (!empty($json['pluralForm'])) {
-			$this->pluralFormString = $json['pluralForm'];
-		}
-		$this->translations = array_merge($this->translations, $json['translations']);
-		return true;
-	}
+    /** @var IFactory */
+    protected $factory;
+
+    /** @var string App of this object */
+    protected $app;
+
+    /** @var string Language of this object */
+    protected $lang;
+
+    /** @var string Plural forms (string) */
+    private $pluralFormString = 'nplurals=2; plural=(n != 1);';
+
+    /** @var string Plural forms (function) */
+    private $pluralFormFunction = null;
+
+    /** @var string[] */
+    private $translations = [];
+
+    /**
+     * @param IFactory $factory
+     * @param string $app
+     * @param string $lang
+     * @param array $files
+     */
+    public function __construct(IFactory $factory, $app, $lang, array $files) {
+        $this->factory = $factory;
+        $this->app = $app;
+        $this->lang = $lang;
+
+        $this->translations = [];
+        foreach ($files as $languageFile) {
+            $this->load($languageFile);
+        }
+    }
+
+    /**
+     * The code (en, de, ...) of the language that is used for this instance
+     *
+     * @return string language
+     */
+    public function getLanguageCode() {
+        return $this->lang;
+    }
+
+    /**
+     * Translating
+     * @param string $text The text we need a translation for
+     * @param array $parameters default:array() Parameters for sprintf
+     * @return string Translation or the same text
+     *
+     * Returns the translation. If no translation is found, $text will be
+     * returned.
+     */
+    public function t($text, $parameters = array()) {
+        return (string) new \OC_L10N_String($this, $text, $parameters);
+    }
+
+    /**
+     * Translating
+     * @param string $text_singular the string to translate for exactly one object
+     * @param string $text_plural the string to translate for n objects
+     * @param integer $count Number of objects
+     * @param array $parameters default:array() Parameters for sprintf
+     * @return string Translation or the same text
+     *
+     * Returns the translation. If no translation is found, $text will be
+     * returned. %n will be replaced with the number of objects.
+     *
+     * The correct plural is determined by the plural_forms-function
+     * provided by the po file.
+     *
+     */
+    public function n($text_singular, $text_plural, $count, $parameters = array()) {
+        $identifier = "_${text_singular}_::_${text_plural}_";
+        if (isset($this->translations[$identifier])) {
+            return (string) new \OC_L10N_String($this, $identifier, $parameters, $count);
+        } else {
+            if ($count === 1) {
+                return (string) new \OC_L10N_String($this, $text_singular, $parameters, $count);
+            } else {
+                return (string) new \OC_L10N_String($this, $text_plural, $parameters, $count);
+            }
+        }
+    }
+
+    /**
+     * Localization
+     * @param string $type Type of localization
+     * @param \DateTime|int|string $data parameters for this localization
+     * @param array $options
+     * @return string|int|false
+     *
+     * Returns the localized data.
+     *
+     * Implemented types:
+     *  - date
+     *    - Creates a date
+     *    - params: timestamp (int/string)
+     *  - datetime
+     *    - Creates date and time
+     *    - params: timestamp (int/string)
+     *  - time
+     *    - Creates a time
+     *    - params: timestamp (int/string)
+     *  - firstday: Returns the first day of the week (0 sunday - 6 saturday)
+     *  - jsdate: Returns the short JS date format
+     */
+    public function l($type, $data = null, $options = array()) {
+        // Use the language of the instance
+        $locale = $this->getLanguageCode();
+        if ($locale === 'sr@latin') {
+            $locale = 'sr_latn';
+        }
+
+        if ($type === 'firstday') {
+            return (int) Calendar::getFirstWeekday($locale);
+        }
+        if ($type === 'jsdate') {
+            return (string) Calendar::getDateFormat('short', $locale);
+        }
+
+        $value = new \DateTime();
+        if ($data instanceof \DateTime) {
+            $value = $data;
+        } else if (is_string($data) && !is_numeric($data)) {
+            $data = strtotime($data);
+            $value->setTimestamp($data);
+        } else if ($data !== null) {
+            $value->setTimestamp($data);
+        }
+
+        $options = array_merge(array('width' => 'long'), $options);
+        $width = $options['width'];
+        switch ($type) {
+            case 'date':
+                return (string) Calendar::formatDate($value, $width, $locale);
+            case 'datetime':
+                return (string) Calendar::formatDatetime($value, $width, $locale);
+            case 'time':
+                return (string) Calendar::formatTime($value, $width, $locale);
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * Returns an associative array with all translations
+     *
+     * Called by \OC_L10N_String
+     * @return array
+     */
+    public function getTranslations() {
+        return $this->translations;
+    }
+
+    /**
+     * Returnsed function accepts the argument $n
+     *
+     * Called by \OC_L10N_String
+     * @return string the plural form function
+     */
+    public function getPluralFormFunction() {
+        if (is_null($this->pluralFormFunction)) {
+            $this->pluralFormFunction = $this->factory->createPluralFunction($this->pluralFormString);
+        }
+        return $this->pluralFormFunction;
+    }
+
+    /**
+     * @param $translationFile
+     * @return bool
+     */
+    protected function load($translationFile) {
+        $json = json_decode(file_get_contents($translationFile), true);
+        if (!is_array($json)) {
+            $jsonError = json_last_error();
+            \OC::$server->getLogger()->warning("Failed to load $translationFile - json error code: $jsonError", ['app' => 'l10n']);
+            return false;
+        }
+
+        if (!empty($json['pluralForm'])) {
+            $this->pluralFormString = $json['pluralForm'];
+        }
+        $this->translations = array_merge($this->translations, $json['translations']);
+        return true;
+    }
 }

lib/private/legacy/api.php

Doc Comments +1 added lines, -1 removed lines

@@ -331,7 +331,7 @@
 
 	/**
 	 * http basic auth
-	 * @return string|false (username, or false on failure)
+	 * @return string (username, or false on failure)
 	 */
 	private static function loginUser() {
 		if(self::$isLoggedIn === true) {

Indentation +462 added lines, -462 removed lines

@@ -37,467 +37,467 @@
 
 class OC_API {
 
-	/**
-	 * API authentication levels
-	 */
-
-	/** @deprecated Use \OCP\API::GUEST_AUTH instead */
-	const GUEST_AUTH = 0;
-
-	/** @deprecated Use \OCP\API::USER_AUTH instead */
-	const USER_AUTH = 1;
-
-	/** @deprecated Use \OCP\API::SUBADMIN_AUTH instead */
-	const SUBADMIN_AUTH = 2;
-
-	/** @deprecated Use \OCP\API::ADMIN_AUTH instead */
-	const ADMIN_AUTH = 3;
-
-	/**
-	 * API Response Codes
-	 */
-
-	/** @deprecated Use \OCP\API::RESPOND_UNAUTHORISED instead */
-	const RESPOND_UNAUTHORISED = 997;
-
-	/** @deprecated Use \OCP\API::RESPOND_SERVER_ERROR instead */
-	const RESPOND_SERVER_ERROR = 996;
-
-	/** @deprecated Use \OCP\API::RESPOND_NOT_FOUND instead */
-	const RESPOND_NOT_FOUND = 998;
-
-	/** @deprecated Use \OCP\API::RESPOND_UNKNOWN_ERROR instead */
-	const RESPOND_UNKNOWN_ERROR = 999;
-
-	/**
-	 * api actions
-	 */
-	protected static $actions = array();
-	private static $logoutRequired = false;
-	private static $isLoggedIn = false;
-
-	/**
-	 * registers an api call
-	 * @param string $method the http method
-	 * @param string $url the url to match
-	 * @param callable $action the function to run
-	 * @param string $app the id of the app registering the call
-	 * @param int $authLevel the level of authentication required for the call
-	 * @param array $defaults
-	 * @param array $requirements
-	 */
-	public static function register($method, $url, $action, $app,
-				$authLevel = API::USER_AUTH,
-				$defaults = array(),
-				$requirements = array()) {
-		$name = strtolower($method).$url;
-		$name = str_replace(array('/', '{', '}'), '_', $name);
-		if(!isset(self::$actions[$name])) {
-			$oldCollection = OC::$server->getRouter()->getCurrentCollection();
-			OC::$server->getRouter()->useCollection('ocs');
-			OC::$server->getRouter()->create($name, $url)
-				->method($method)
-				->defaults($defaults)
-				->requirements($requirements)
-				->action('OC_API', 'call');
-			self::$actions[$name] = array();
-			OC::$server->getRouter()->useCollection($oldCollection);
-		}
-		self::$actions[$name][] = array('app' => $app, 'action' => $action, 'authlevel' => $authLevel);
-	}
-
-	/**
-	 * handles an api call
-	 * @param array $parameters
-	 */
-	public static function call($parameters) {
-		$request = \OC::$server->getRequest();
-		$method = $request->getMethod();
-
-		// Prepare the request variables
-		if($method === 'PUT') {
-			$parameters['_put'] = $request->getParams();
-		} else if($method === 'DELETE') {
-			$parameters['_delete'] = $request->getParams();
-		}
-		$name = $parameters['_route'];
-		// Foreach registered action
-		$responses = array();
-		foreach(self::$actions[$name] as $action) {
-			// Check authentication and availability
-			if(!self::isAuthorised($action)) {
-				$responses[] = array(
-					'app' => $action['app'],
-					'response' => new OC_OCS_Result(null, API::RESPOND_UNAUTHORISED, 'Unauthorised'),
-					'shipped' => OC_App::isShipped($action['app']),
-					);
-				continue;
-			}
-			if(!is_callable($action['action'])) {
-				$responses[] = array(
-					'app' => $action['app'],
-					'response' => new OC_OCS_Result(null, API::RESPOND_NOT_FOUND, 'Api method not found'),
-					'shipped' => OC_App::isShipped($action['app']),
-					);
-				continue;
-			}
-			// Run the action
-			$responses[] = array(
-				'app' => $action['app'],
-				'response' => call_user_func($action['action'], $parameters),
-				'shipped' => OC_App::isShipped($action['app']),
-				);
-		}
-		$response = self::mergeResponses($responses);
-		$format = self::requestedFormat();
-		if (self::$logoutRequired) {
-			\OC::$server->getUserSession()->logout();
-		}
-
-		self::respond($response, $format);
-	}
-
-	/**
-	 * merge the returned result objects into one response
-	 * @param array $responses
-	 * @return OC_OCS_Result
-	 */
-	public static function mergeResponses($responses) {
-		// Sort into shipped and third-party
-		$shipped = array(
-			'succeeded' => array(),
-			'failed' => array(),
-			);
-		$thirdparty = array(
-			'succeeded' => array(),
-			'failed' => array(),
-			);
-
-		foreach($responses as $response) {
-			if($response['shipped'] || ($response['app'] === 'core')) {
-				if($response['response']->succeeded()) {
-					$shipped['succeeded'][$response['app']] = $response;
-				} else {
-					$shipped['failed'][$response['app']] = $response;
-				}
-			} else {
-				if($response['response']->succeeded()) {
-					$thirdparty['succeeded'][$response['app']] = $response;
-				} else {
-					$thirdparty['failed'][$response['app']] = $response;
-				}
-			}
-		}
-
-		// Remove any error responses if there is one shipped response that succeeded
-		if(!empty($shipped['failed'])) {
-			// Which shipped response do we use if they all failed?
-			// They may have failed for different reasons (different status codes)
-			// Which response code should we return?
-			// Maybe any that are not \OCP\API::RESPOND_SERVER_ERROR
-			// Merge failed responses if more than one
-			$data = array();
-			foreach($shipped['failed'] as $failure) {
-				$data = array_merge_recursive($data, $failure['response']->getData());
-			}
-			$picked = reset($shipped['failed']);
-			$code = $picked['response']->getStatusCode();
-			$meta = $picked['response']->getMeta();
-			$headers = $picked['response']->getHeaders();
-			$response = new OC_OCS_Result($data, $code, $meta['message'], $headers);
-			return $response;
-		} elseif(!empty($shipped['succeeded'])) {
-			$responses = array_merge($shipped['succeeded'], $thirdparty['succeeded']);
-		} elseif(!empty($thirdparty['failed'])) {
-			// Merge failed responses if more than one
-			$data = array();
-			foreach($thirdparty['failed'] as $failure) {
-				$data = array_merge_recursive($data, $failure['response']->getData());
-			}
-			$picked = reset($thirdparty['failed']);
-			$code = $picked['response']->getStatusCode();
-			$meta = $picked['response']->getMeta();
-			$headers = $picked['response']->getHeaders();
-			$response = new OC_OCS_Result($data, $code, $meta['message'], $headers);
-			return $response;
-		} else {
-			$responses = $thirdparty['succeeded'];
-		}
-		// Merge the successful responses
-		$data = [];
-		$codes = [];
-		$header = [];
-
-		foreach($responses as $response) {
-			if($response['shipped']) {
-				$data = array_merge_recursive($response['response']->getData(), $data);
-			} else {
-				$data = array_merge_recursive($data, $response['response']->getData());
-			}
-			$header = array_merge_recursive($header, $response['response']->getHeaders());
-			$codes[] = ['code' => $response['response']->getStatusCode(),
-				'meta' => $response['response']->getMeta()];
-		}
-
-		// Use any non 100 status codes
-		$statusCode = 100;
-		$statusMessage = null;
-		foreach($codes as $code) {
-			if($code['code'] != 100) {
-				$statusCode = $code['code'];
-				$statusMessage = $code['meta']['message'];
-				break;
-			}
-		}
-
-		return new OC_OCS_Result($data, $statusCode, $statusMessage, $header);
-	}
-
-	/**
-	 * authenticate the api call
-	 * @param array $action the action details as supplied to OC_API::register()
-	 * @return bool
-	 */
-	private static function isAuthorised($action) {
-		$level = $action['authlevel'];
-		switch($level) {
-			case API::GUEST_AUTH:
-				// Anyone can access
-				return true;
-			case API::USER_AUTH:
-				// User required
-				return self::loginUser();
-			case API::SUBADMIN_AUTH:
-				// Check for subadmin
-				$user = self::loginUser();
-				if(!$user) {
-					return false;
-				} else {
-					$userObject = \OC::$server->getUserSession()->getUser();
-					if($userObject === null) {
-						return false;
-					}
-					$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
-					$admin = OC_User::isAdminUser($user);
-					if($isSubAdmin || $admin) {
-						return true;
-					} else {
-						return false;
-					}
-				}
-			case API::ADMIN_AUTH:
-				// Check for admin
-				$user = self::loginUser();
-				if(!$user) {
-					return false;
-				} else {
-					return OC_User::isAdminUser($user);
-				}
-			default:
-				// oops looks like invalid level supplied
-				return false;
-		}
-	}
-
-	/**
-	 * http basic auth
-	 * @return string|false (username, or false on failure)
-	 */
-	private static function loginUser() {
-		if(self::$isLoggedIn === true) {
-			return \OC_User::getUser();
-		}
-
-		// reuse existing login
-		$loggedIn = \OC::$server->getUserSession()->isLoggedIn();
-		if ($loggedIn === true) {
-			if (\OC::$server->getTwoFactorAuthManager()->needsSecondFactor(\OC::$server->getUserSession()->getUser())) {
-				// Do not allow access to OCS until the 2FA challenge was solved successfully
-				return false;
-			}
-			$ocsApiRequest = isset($_SERVER['HTTP_OCS_APIREQUEST']) ? $_SERVER['HTTP_OCS_APIREQUEST'] === 'true' : false;
-			if ($ocsApiRequest) {
-
-				// initialize the user's filesystem
-				\OC_Util::setupFS(\OC_User::getUser());
-				self::$isLoggedIn = true;
-
-				return OC_User::getUser();
-			}
-			return false;
-		}
-
-		// basic auth - because OC_User::login will create a new session we shall only try to login
-		// if user and pass are set
-		$userSession = \OC::$server->getUserSession();
-		$request = \OC::$server->getRequest();
-		try {
-			$loginSuccess = $userSession->tryTokenLogin($request);
-			if (!$loginSuccess) {
-				$loginSuccess = $userSession->tryBasicAuthLogin($request, \OC::$server->getBruteForceThrottler());
-			}
-		} catch (\OC\User\LoginException $e) {
-			return false;
-		}
+    /**
+     * API authentication levels
+     */
+
+    /** @deprecated Use \OCP\API::GUEST_AUTH instead */
+    const GUEST_AUTH = 0;
+
+    /** @deprecated Use \OCP\API::USER_AUTH instead */
+    const USER_AUTH = 1;
+
+    /** @deprecated Use \OCP\API::SUBADMIN_AUTH instead */
+    const SUBADMIN_AUTH = 2;
+
+    /** @deprecated Use \OCP\API::ADMIN_AUTH instead */
+    const ADMIN_AUTH = 3;
+
+    /**
+     * API Response Codes
+     */
+
+    /** @deprecated Use \OCP\API::RESPOND_UNAUTHORISED instead */
+    const RESPOND_UNAUTHORISED = 997;
+
+    /** @deprecated Use \OCP\API::RESPOND_SERVER_ERROR instead */
+    const RESPOND_SERVER_ERROR = 996;
+
+    /** @deprecated Use \OCP\API::RESPOND_NOT_FOUND instead */
+    const RESPOND_NOT_FOUND = 998;
+
+    /** @deprecated Use \OCP\API::RESPOND_UNKNOWN_ERROR instead */
+    const RESPOND_UNKNOWN_ERROR = 999;
+
+    /**
+     * api actions
+     */
+    protected static $actions = array();
+    private static $logoutRequired = false;
+    private static $isLoggedIn = false;
+
+    /**
+     * registers an api call
+     * @param string $method the http method
+     * @param string $url the url to match
+     * @param callable $action the function to run
+     * @param string $app the id of the app registering the call
+     * @param int $authLevel the level of authentication required for the call
+     * @param array $defaults
+     * @param array $requirements
+     */
+    public static function register($method, $url, $action, $app,
+                $authLevel = API::USER_AUTH,
+                $defaults = array(),
+                $requirements = array()) {
+        $name = strtolower($method).$url;
+        $name = str_replace(array('/', '{', '}'), '_', $name);
+        if(!isset(self::$actions[$name])) {
+            $oldCollection = OC::$server->getRouter()->getCurrentCollection();
+            OC::$server->getRouter()->useCollection('ocs');
+            OC::$server->getRouter()->create($name, $url)
+                ->method($method)
+                ->defaults($defaults)
+                ->requirements($requirements)
+                ->action('OC_API', 'call');
+            self::$actions[$name] = array();
+            OC::$server->getRouter()->useCollection($oldCollection);
+        }
+        self::$actions[$name][] = array('app' => $app, 'action' => $action, 'authlevel' => $authLevel);
+    }
+
+    /**
+     * handles an api call
+     * @param array $parameters
+     */
+    public static function call($parameters) {
+        $request = \OC::$server->getRequest();
+        $method = $request->getMethod();
+
+        // Prepare the request variables
+        if($method === 'PUT') {
+            $parameters['_put'] = $request->getParams();
+        } else if($method === 'DELETE') {
+            $parameters['_delete'] = $request->getParams();
+        }
+        $name = $parameters['_route'];
+        // Foreach registered action
+        $responses = array();
+        foreach(self::$actions[$name] as $action) {
+            // Check authentication and availability
+            if(!self::isAuthorised($action)) {
+                $responses[] = array(
+                    'app' => $action['app'],
+                    'response' => new OC_OCS_Result(null, API::RESPOND_UNAUTHORISED, 'Unauthorised'),
+                    'shipped' => OC_App::isShipped($action['app']),
+                    );
+                continue;
+            }
+            if(!is_callable($action['action'])) {
+                $responses[] = array(
+                    'app' => $action['app'],
+                    'response' => new OC_OCS_Result(null, API::RESPOND_NOT_FOUND, 'Api method not found'),
+                    'shipped' => OC_App::isShipped($action['app']),
+                    );
+                continue;
+            }
+            // Run the action
+            $responses[] = array(
+                'app' => $action['app'],
+                'response' => call_user_func($action['action'], $parameters),
+                'shipped' => OC_App::isShipped($action['app']),
+                );
+        }
+        $response = self::mergeResponses($responses);
+        $format = self::requestedFormat();
+        if (self::$logoutRequired) {
+            \OC::$server->getUserSession()->logout();
+        }
+
+        self::respond($response, $format);
+    }
+
+    /**
+     * merge the returned result objects into one response
+     * @param array $responses
+     * @return OC_OCS_Result
+     */
+    public static function mergeResponses($responses) {
+        // Sort into shipped and third-party
+        $shipped = array(
+            'succeeded' => array(),
+            'failed' => array(),
+            );
+        $thirdparty = array(
+            'succeeded' => array(),
+            'failed' => array(),
+            );
+
+        foreach($responses as $response) {
+            if($response['shipped'] || ($response['app'] === 'core')) {
+                if($response['response']->succeeded()) {
+                    $shipped['succeeded'][$response['app']] = $response;
+                } else {
+                    $shipped['failed'][$response['app']] = $response;
+                }
+            } else {
+                if($response['response']->succeeded()) {
+                    $thirdparty['succeeded'][$response['app']] = $response;
+                } else {
+                    $thirdparty['failed'][$response['app']] = $response;
+                }
+            }
+        }
+
+        // Remove any error responses if there is one shipped response that succeeded
+        if(!empty($shipped['failed'])) {
+            // Which shipped response do we use if they all failed?
+            // They may have failed for different reasons (different status codes)
+            // Which response code should we return?
+            // Maybe any that are not \OCP\API::RESPOND_SERVER_ERROR
+            // Merge failed responses if more than one
+            $data = array();
+            foreach($shipped['failed'] as $failure) {
+                $data = array_merge_recursive($data, $failure['response']->getData());
+            }
+            $picked = reset($shipped['failed']);
+            $code = $picked['response']->getStatusCode();
+            $meta = $picked['response']->getMeta();
+            $headers = $picked['response']->getHeaders();
+            $response = new OC_OCS_Result($data, $code, $meta['message'], $headers);
+            return $response;
+        } elseif(!empty($shipped['succeeded'])) {
+            $responses = array_merge($shipped['succeeded'], $thirdparty['succeeded']);
+        } elseif(!empty($thirdparty['failed'])) {
+            // Merge failed responses if more than one
+            $data = array();
+            foreach($thirdparty['failed'] as $failure) {
+                $data = array_merge_recursive($data, $failure['response']->getData());
+            }
+            $picked = reset($thirdparty['failed']);
+            $code = $picked['response']->getStatusCode();
+            $meta = $picked['response']->getMeta();
+            $headers = $picked['response']->getHeaders();
+            $response = new OC_OCS_Result($data, $code, $meta['message'], $headers);
+            return $response;
+        } else {
+            $responses = $thirdparty['succeeded'];
+        }
+        // Merge the successful responses
+        $data = [];
+        $codes = [];
+        $header = [];
+
+        foreach($responses as $response) {
+            if($response['shipped']) {
+                $data = array_merge_recursive($response['response']->getData(), $data);
+            } else {
+                $data = array_merge_recursive($data, $response['response']->getData());
+            }
+            $header = array_merge_recursive($header, $response['response']->getHeaders());
+            $codes[] = ['code' => $response['response']->getStatusCode(),
+                'meta' => $response['response']->getMeta()];
+        }
+
+        // Use any non 100 status codes
+        $statusCode = 100;
+        $statusMessage = null;
+        foreach($codes as $code) {
+            if($code['code'] != 100) {
+                $statusCode = $code['code'];
+                $statusMessage = $code['meta']['message'];
+                break;
+            }
+        }
+
+        return new OC_OCS_Result($data, $statusCode, $statusMessage, $header);
+    }
+
+    /**
+     * authenticate the api call
+     * @param array $action the action details as supplied to OC_API::register()
+     * @return bool
+     */
+    private static function isAuthorised($action) {
+        $level = $action['authlevel'];
+        switch($level) {
+            case API::GUEST_AUTH:
+                // Anyone can access
+                return true;
+            case API::USER_AUTH:
+                // User required
+                return self::loginUser();
+            case API::SUBADMIN_AUTH:
+                // Check for subadmin
+                $user = self::loginUser();
+                if(!$user) {
+                    return false;
+                } else {
+                    $userObject = \OC::$server->getUserSession()->getUser();
+                    if($userObject === null) {
+                        return false;
+                    }
+                    $isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
+                    $admin = OC_User::isAdminUser($user);
+                    if($isSubAdmin || $admin) {
+                        return true;
+                    } else {
+                        return false;
+                    }
+                }
+            case API::ADMIN_AUTH:
+                // Check for admin
+                $user = self::loginUser();
+                if(!$user) {
+                    return false;
+                } else {
+                    return OC_User::isAdminUser($user);
+                }
+            default:
+                // oops looks like invalid level supplied
+                return false;
+        }
+    }
+
+    /**
+     * http basic auth
+     * @return string|false (username, or false on failure)
+     */
+    private static function loginUser() {
+        if(self::$isLoggedIn === true) {
+            return \OC_User::getUser();
+        }
+
+        // reuse existing login
+        $loggedIn = \OC::$server->getUserSession()->isLoggedIn();
+        if ($loggedIn === true) {
+            if (\OC::$server->getTwoFactorAuthManager()->needsSecondFactor(\OC::$server->getUserSession()->getUser())) {
+                // Do not allow access to OCS until the 2FA challenge was solved successfully
+                return false;
+            }
+            $ocsApiRequest = isset($_SERVER['HTTP_OCS_APIREQUEST']) ? $_SERVER['HTTP_OCS_APIREQUEST'] === 'true' : false;
+            if ($ocsApiRequest) {
+
+                // initialize the user's filesystem
+                \OC_Util::setupFS(\OC_User::getUser());
+                self::$isLoggedIn = true;
+
+                return OC_User::getUser();
+            }
+            return false;
+        }
+
+        // basic auth - because OC_User::login will create a new session we shall only try to login
+        // if user and pass are set
+        $userSession = \OC::$server->getUserSession();
+        $request = \OC::$server->getRequest();
+        try {
+            $loginSuccess = $userSession->tryTokenLogin($request);
+            if (!$loginSuccess) {
+                $loginSuccess = $userSession->tryBasicAuthLogin($request, \OC::$server->getBruteForceThrottler());
+            }
+        } catch (\OC\User\LoginException $e) {
+            return false;
+        }
 	
-		if ($loginSuccess === true) {
-			self::$logoutRequired = true;
-
-			// initialize the user's filesystem
-			\OC_Util::setupFS(\OC_User::getUser());
-			self::$isLoggedIn = true;
-
-			return \OC_User::getUser();
-		}
-
-		return false;
-	}
-
-	/**
-	 * respond to a call
-	 * @param OC_OCS_Result $result
-	 * @param string $format the format xml|json
-	 */
-	public static function respond($result, $format='xml') {
-		$request = \OC::$server->getRequest();
-
-		// Send 401 headers if unauthorised
-		if($result->getStatusCode() === API::RESPOND_UNAUTHORISED) {
-			// If request comes from JS return dummy auth request
-			if($request->getHeader('X-Requested-With') === 'XMLHttpRequest') {
-				header('WWW-Authenticate: DummyBasic realm="Authorisation Required"');
-			} else {
-				header('WWW-Authenticate: Basic realm="Authorisation Required"');
-			}
-			header('HTTP/1.0 401 Unauthorized');
-		}
-
-		foreach($result->getHeaders() as $name => $value) {
-			header($name . ': ' . $value);
-		}
-
-		$meta = $result->getMeta();
-		$data = $result->getData();
-		if (self::isV2($request)) {
-			$statusCode = self::mapStatusCodes($result->getStatusCode());
-			if (!is_null($statusCode)) {
-				$meta['statuscode'] = $statusCode;
-				OC_Response::setStatus($statusCode);
-			}
-		}
-
-		self::setContentType($format);
-		$body = self::renderResult($format, $meta, $data);
-		echo $body;
-	}
-
-	/**
-	 * @param XMLWriter $writer
-	 */
-	private static function toXML($array, $writer) {
-		foreach($array as $k => $v) {
-			if ($k[0] === '@') {
-				$writer->writeAttribute(substr($k, 1), $v);
-				continue;
-			} else if (is_numeric($k)) {
-				$k = 'element';
-			}
-			if(is_array($v)) {
-				$writer->startElement($k);
-				self::toXML($v, $writer);
-				$writer->endElement();
-			} else {
-				$writer->writeElement($k, $v);
-			}
-		}
-	}
-
-	/**
-	 * @return string
-	 */
-	public static function requestedFormat() {
-		$formats = array('json', 'xml');
-
-		$format = !empty($_GET['format']) && in_array($_GET['format'], $formats) ? $_GET['format'] : 'xml';
-		return $format;
-	}
-
-	/**
-	 * Based on the requested format the response content type is set
-	 * @param string $format
-	 */
-	public static function setContentType($format = null) {
-		$format = is_null($format) ? self::requestedFormat() : $format;
-		if ($format === 'xml') {
-			header('Content-type: text/xml; charset=UTF-8');
-			return;
-		}
-
-		if ($format === 'json') {
-			header('Content-Type: application/json; charset=utf-8');
-			return;
-		}
-
-		header('Content-Type: application/octet-stream; charset=utf-8');
-	}
-
-	/**
-	 * @param \OCP\IRequest $request
-	 * @return bool
-	 */
-	protected static function isV2(\OCP\IRequest $request) {
-		$script = $request->getScriptName();
-
-		return substr($script, -11) === '/ocs/v2.php';
-	}
-
-	/**
-	 * @param integer $sc
-	 * @return int
-	 */
-	public static function mapStatusCodes($sc) {
-		switch ($sc) {
-			case API::RESPOND_NOT_FOUND:
-				return Http::STATUS_NOT_FOUND;
-			case API::RESPOND_SERVER_ERROR:
-				return Http::STATUS_INTERNAL_SERVER_ERROR;
-			case API::RESPOND_UNKNOWN_ERROR:
-				return Http::STATUS_INTERNAL_SERVER_ERROR;
-			case API::RESPOND_UNAUTHORISED:
-				// already handled for v1
-				return null;
-			case 100:
-				return Http::STATUS_OK;
-		}
-		// any 2xx, 4xx and 5xx will be used as is
-		if ($sc >= 200 && $sc < 600) {
-			return $sc;
-		}
-
-		return Http::STATUS_BAD_REQUEST;
-	}
-
-	/**
-	 * @param string $format
-	 * @return string
-	 */
-	public static function renderResult($format, $meta, $data) {
-		$response = array(
-			'ocs' => array(
-				'meta' => $meta,
-				'data' => $data,
-			),
-		);
-		if ($format == 'json') {
-			return OC_JSON::encode($response);
-		}
-
-		$writer = new XMLWriter();
-		$writer->openMemory();
-		$writer->setIndent(true);
-		$writer->startDocument();
-		self::toXML($response, $writer);
-		$writer->endDocument();
-		return $writer->outputMemory(true);
-	}
+        if ($loginSuccess === true) {
+            self::$logoutRequired = true;
+
+            // initialize the user's filesystem
+            \OC_Util::setupFS(\OC_User::getUser());
+            self::$isLoggedIn = true;
+
+            return \OC_User::getUser();
+        }
+
+        return false;
+    }
+
+    /**
+     * respond to a call
+     * @param OC_OCS_Result $result
+     * @param string $format the format xml|json
+     */
+    public static function respond($result, $format='xml') {
+        $request = \OC::$server->getRequest();
+
+        // Send 401 headers if unauthorised
+        if($result->getStatusCode() === API::RESPOND_UNAUTHORISED) {
+            // If request comes from JS return dummy auth request
+            if($request->getHeader('X-Requested-With') === 'XMLHttpRequest') {
+                header('WWW-Authenticate: DummyBasic realm="Authorisation Required"');
+            } else {
+                header('WWW-Authenticate: Basic realm="Authorisation Required"');
+            }
+            header('HTTP/1.0 401 Unauthorized');
+        }
+
+        foreach($result->getHeaders() as $name => $value) {
+            header($name . ': ' . $value);
+        }
+
+        $meta = $result->getMeta();
+        $data = $result->getData();
+        if (self::isV2($request)) {
+            $statusCode = self::mapStatusCodes($result->getStatusCode());
+            if (!is_null($statusCode)) {
+                $meta['statuscode'] = $statusCode;
+                OC_Response::setStatus($statusCode);
+            }
+        }
+
+        self::setContentType($format);
+        $body = self::renderResult($format, $meta, $data);
+        echo $body;
+    }
+
+    /**
+     * @param XMLWriter $writer
+     */
+    private static function toXML($array, $writer) {
+        foreach($array as $k => $v) {
+            if ($k[0] === '@') {
+                $writer->writeAttribute(substr($k, 1), $v);
+                continue;
+            } else if (is_numeric($k)) {
+                $k = 'element';
+            }
+            if(is_array($v)) {
+                $writer->startElement($k);
+                self::toXML($v, $writer);
+                $writer->endElement();
+            } else {
+                $writer->writeElement($k, $v);
+            }
+        }
+    }
+
+    /**
+     * @return string
+     */
+    public static function requestedFormat() {
+        $formats = array('json', 'xml');
+
+        $format = !empty($_GET['format']) && in_array($_GET['format'], $formats) ? $_GET['format'] : 'xml';
+        return $format;
+    }
+
+    /**
+     * Based on the requested format the response content type is set
+     * @param string $format
+     */
+    public static function setContentType($format = null) {
+        $format = is_null($format) ? self::requestedFormat() : $format;
+        if ($format === 'xml') {
+            header('Content-type: text/xml; charset=UTF-8');
+            return;
+        }
+
+        if ($format === 'json') {
+            header('Content-Type: application/json; charset=utf-8');
+            return;
+        }
+
+        header('Content-Type: application/octet-stream; charset=utf-8');
+    }
+
+    /**
+     * @param \OCP\IRequest $request
+     * @return bool
+     */
+    protected static function isV2(\OCP\IRequest $request) {
+        $script = $request->getScriptName();
+
+        return substr($script, -11) === '/ocs/v2.php';
+    }
+
+    /**
+     * @param integer $sc
+     * @return int
+     */
+    public static function mapStatusCodes($sc) {
+        switch ($sc) {
+            case API::RESPOND_NOT_FOUND:
+                return Http::STATUS_NOT_FOUND;
+            case API::RESPOND_SERVER_ERROR:
+                return Http::STATUS_INTERNAL_SERVER_ERROR;
+            case API::RESPOND_UNKNOWN_ERROR:
+                return Http::STATUS_INTERNAL_SERVER_ERROR;
+            case API::RESPOND_UNAUTHORISED:
+                // already handled for v1
+                return null;
+            case 100:
+                return Http::STATUS_OK;
+        }
+        // any 2xx, 4xx and 5xx will be used as is
+        if ($sc >= 200 && $sc < 600) {
+            return $sc;
+        }
+
+        return Http::STATUS_BAD_REQUEST;
+    }
+
+    /**
+     * @param string $format
+     * @return string
+     */
+    public static function renderResult($format, $meta, $data) {
+        $response = array(
+            'ocs' => array(
+                'meta' => $meta,
+                'data' => $data,
+            ),
+        );
+        if ($format == 'json') {
+            return OC_JSON::encode($response);
+        }
+
+        $writer = new XMLWriter();
+        $writer->openMemory();
+        $writer->setIndent(true);
+        $writer->startDocument();
+        self::toXML($response, $writer);
+        $writer->endDocument();
+        return $writer->outputMemory(true);
+    }
 }

Spacing +32 added lines, -32 removed lines

@@ -92,7 +92,7 @@ 
 				$requirements = array()) {
 		$name = strtolower($method).$url;
 		$name = str_replace(array('/', '{', '}'), '_', $name);
-		if(!isset(self::$actions[$name])) {
+		if (!isset(self::$actions[$name])) {
 			$oldCollection = OC::$server->getRouter()->getCurrentCollection();
 			OC::$server->getRouter()->useCollection('ocs');
 			OC::$server->getRouter()->create($name, $url)
@@ -115,17 +115,17 @@ 
 		$method = $request->getMethod();
 
 		// Prepare the request variables
-		if($method === 'PUT') {
+		if ($method === 'PUT') {
 			$parameters['_put'] = $request->getParams();
-		} else if($method === 'DELETE') {
+		} else if ($method === 'DELETE') {
 			$parameters['_delete'] = $request->getParams();
 		}
 		$name = $parameters['_route'];
 		// Foreach registered action
 		$responses = array();
-		foreach(self::$actions[$name] as $action) {
+		foreach (self::$actions[$name] as $action) {
 			// Check authentication and availability
-			if(!self::isAuthorised($action)) {
+			if (!self::isAuthorised($action)) {
 				$responses[] = array(
 					'app' => $action['app'],
 					'response' => new OC_OCS_Result(null, API::RESPOND_UNAUTHORISED, 'Unauthorised'),
@@ -133,7 +133,7 @@ 
 					);
 				continue;
 			}
-			if(!is_callable($action['action'])) {
+			if (!is_callable($action['action'])) {
 				$responses[] = array(
 					'app' => $action['app'],
 					'response' => new OC_OCS_Result(null, API::RESPOND_NOT_FOUND, 'Api method not found'),
@@ -173,15 +173,15 @@ 
 			'failed' => array(),
 			);
 
-		foreach($responses as $response) {
-			if($response['shipped'] || ($response['app'] === 'core')) {
-				if($response['response']->succeeded()) {
+		foreach ($responses as $response) {
+			if ($response['shipped'] || ($response['app'] === 'core')) {
+				if ($response['response']->succeeded()) {
 					$shipped['succeeded'][$response['app']] = $response;
 				} else {
 					$shipped['failed'][$response['app']] = $response;
 				}
 			} else {
-				if($response['response']->succeeded()) {
+				if ($response['response']->succeeded()) {
 					$thirdparty['succeeded'][$response['app']] = $response;
 				} else {
 					$thirdparty['failed'][$response['app']] = $response;
@@ -190,14 +190,14 @@ 
 		}
 
 		// Remove any error responses if there is one shipped response that succeeded
-		if(!empty($shipped['failed'])) {
+		if (!empty($shipped['failed'])) {
 			// Which shipped response do we use if they all failed?
 			// They may have failed for different reasons (different status codes)
 			// Which response code should we return?
 			// Maybe any that are not \OCP\API::RESPOND_SERVER_ERROR
 			// Merge failed responses if more than one
 			$data = array();
-			foreach($shipped['failed'] as $failure) {
+			foreach ($shipped['failed'] as $failure) {
 				$data = array_merge_recursive($data, $failure['response']->getData());
 			}
 			$picked = reset($shipped['failed']);
@@ -206,12 +206,12 @@ 
 			$headers = $picked['response']->getHeaders();
 			$response = new OC_OCS_Result($data, $code, $meta['message'], $headers);
 			return $response;
-		} elseif(!empty($shipped['succeeded'])) {
+		} elseif (!empty($shipped['succeeded'])) {
 			$responses = array_merge($shipped['succeeded'], $thirdparty['succeeded']);
-		} elseif(!empty($thirdparty['failed'])) {
+		} elseif (!empty($thirdparty['failed'])) {
 			// Merge failed responses if more than one
 			$data = array();
-			foreach($thirdparty['failed'] as $failure) {
+			foreach ($thirdparty['failed'] as $failure) {
 				$data = array_merge_recursive($data, $failure['response']->getData());
 			}
 			$picked = reset($thirdparty['failed']);
@@ -228,8 +228,8 @@ 
 		$codes = [];
 		$header = [];
 
-		foreach($responses as $response) {
-			if($response['shipped']) {
+		foreach ($responses as $response) {
+			if ($response['shipped']) {
 				$data = array_merge_recursive($response['response']->getData(), $data);
 			} else {
 				$data = array_merge_recursive($data, $response['response']->getData());
@@ -242,8 +242,8 @@ 
 		// Use any non 100 status codes
 		$statusCode = 100;
 		$statusMessage = null;
-		foreach($codes as $code) {
-			if($code['code'] != 100) {
+		foreach ($codes as $code) {
+			if ($code['code'] != 100) {
 				$statusCode = $code['code'];
 				$statusMessage = $code['meta']['message'];
 				break;
@@ -260,7 +260,7 @@ 
 	 */
 	private static function isAuthorised($action) {
 		$level = $action['authlevel'];
-		switch($level) {
+		switch ($level) {
 			case API::GUEST_AUTH:
 				// Anyone can access
 				return true;
@@ -270,16 +270,16 @@ 
 			case API::SUBADMIN_AUTH:
 				// Check for subadmin
 				$user = self::loginUser();
-				if(!$user) {
+				if (!$user) {
 					return false;
 				} else {
 					$userObject = \OC::$server->getUserSession()->getUser();
-					if($userObject === null) {
+					if ($userObject === null) {
 						return false;
 					}
 					$isSubAdmin = \OC::$server->getGroupManager()->getSubAdmin()->isSubAdmin($userObject);
 					$admin = OC_User::isAdminUser($user);
-					if($isSubAdmin || $admin) {
+					if ($isSubAdmin || $admin) {
 						return true;
 					} else {
 						return false;
@@ -288,7 +288,7 @@ 
 			case API::ADMIN_AUTH:
 				// Check for admin
 				$user = self::loginUser();
-				if(!$user) {
+				if (!$user) {
 					return false;
 				} else {
 					return OC_User::isAdminUser($user);
@@ -304,7 +304,7 @@ 
 	 * @return string|false (username, or false on failure)
 	 */
 	private static function loginUser() {
-		if(self::$isLoggedIn === true) {
+		if (self::$isLoggedIn === true) {
 			return \OC_User::getUser();
 		}
 
@@ -358,13 +358,13 @@ 
 	 * @param OC_OCS_Result $result
 	 * @param string $format the format xml|json
 	 */
-	public static function respond($result, $format='xml') {
+	public static function respond($result, $format = 'xml') {
 		$request = \OC::$server->getRequest();
 
 		// Send 401 headers if unauthorised
-		if($result->getStatusCode() === API::RESPOND_UNAUTHORISED) {
+		if ($result->getStatusCode() === API::RESPOND_UNAUTHORISED) {
 			// If request comes from JS return dummy auth request
-			if($request->getHeader('X-Requested-With') === 'XMLHttpRequest') {
+			if ($request->getHeader('X-Requested-With') === 'XMLHttpRequest') {
 				header('WWW-Authenticate: DummyBasic realm="Authorisation Required"');
 			} else {
 				header('WWW-Authenticate: Basic realm="Authorisation Required"');
@@ -372,8 +372,8 @@ 
 			header('HTTP/1.0 401 Unauthorized');
 		}
 
-		foreach($result->getHeaders() as $name => $value) {
-			header($name . ': ' . $value);
+		foreach ($result->getHeaders() as $name => $value) {
+			header($name.': '.$value);
 		}
 
 		$meta = $result->getMeta();
@@ -395,14 +395,14 @@ 
 	 * @param XMLWriter $writer
 	 */
 	private static function toXML($array, $writer) {
-		foreach($array as $k => $v) {
+		foreach ($array as $k => $v) {
 			if ($k[0] === '@') {
 				$writer->writeAttribute(substr($k, 1), $v);
 				continue;
 			} else if (is_numeric($k)) {
 				$k = 'element';
 			}
-			if(is_array($v)) {
+			if (is_array($v)) {
 				$writer->startElement($k);
 				self::toXML($v, $writer);
 				$writer->endElement();