Move \OC\Files to PSR-4

65 files changed, 0 insertions, 18273 deletions

diff --git a/lib/private/files/cache/cache.php b/lib/private/files/cache/cache.php
deleted file mode 100644
index 53467c278d2..00000000000
--- a/lib/private/files/cache/cache.php
+++ /dev/null
@@ -1,837 +0,0 @@
-<?php
-/**
- * @author Andreas Fischer <bantu@owncloud.com>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Florin Peter <github@florin-peter.de>
- * @author Jens-Christian Fischer <jens-christian.fischer@switch.ch>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author TheSFReader <TheSFReader@gmail.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Files\Cache\ICache;
-use OCP\Files\Cache\ICacheEntry;
-use \OCP\Files\IMimeTypeLoader;
-use OCP\IDBConnection;
-
-/**
- * Metadata cache for a storage
- *
- * The cache stores the metadata for all files and folders in a storage and is kept up to date trough the following mechanisms:
- *
- * - Scanner: scans the storage and updates the cache where needed
- * - Watcher: checks for changes made to the filesystem outside of the ownCloud instance and rescans files and folder when a change is detected
- * - Updater: listens to changes made to the filesystem inside of the ownCloud instance and updates the cache where needed
- * - ChangePropagator: updates the mtime and etags of parent folders whenever a change to the cache is made to the cache by the updater
- */
-class Cache implements ICache {
-	use MoveFromCacheTrait {
-		MoveFromCacheTrait::moveFromCache as moveFromCacheFallback;
-	}
-
-	/**
-	 * @var array partial data for the cache
-	 */
-	protected $partial = array();
-
-	/**
-	 * @var string
-	 */
-	protected $storageId;
-
-	/**
-	 * @var Storage $storageCache
-	 */
-	protected $storageCache;
-
-	/** @var IMimeTypeLoader */
-	protected $mimetypeLoader;
-
-	/**
-	 * @var IDBConnection
-	 */
-	protected $connection;
-
-	/**
-	 * @param \OC\Files\Storage\Storage|string $storage
-	 */
-	public function __construct($storage) {
-		if ($storage instanceof \OC\Files\Storage\Storage) {
-			$this->storageId = $storage->getId();
-		} else {
-			$this->storageId = $storage;
-		}
-		if (strlen($this->storageId) > 64) {
-			$this->storageId = md5($this->storageId);
-		}
-
-		$this->storageCache = new Storage($storage);
-		$this->mimetypeLoader = \OC::$server->getMimeTypeLoader();
-		$this->connection = \OC::$server->getDatabaseConnection();
-	}
-
-	/**
-	 * Get the numeric storage id for this cache's storage
-	 *
-	 * @return int
-	 */
-	public function getNumericStorageId() {
-		return $this->storageCache->getNumericId();
-	}
-
-	/**
-	 * get the stored metadata of a file or folder
-	 *
-	 * @param string | int $file either the path of a file or folder or the file id for a file or folder
-	 * @return ICacheEntry|false the cache entry as array of false if the file is not found in the cache
-	 */
-	public function get($file) {
-		if (is_string($file) or $file == '') {
-			// normalize file
-			$file = $this->normalize($file);
-
-			$where = 'WHERE `storage` = ? AND `path_hash` = ?';
-			$params = array($this->getNumericStorageId(), md5($file));
-		} else { //file id
-			$where = 'WHERE `fileid` = ?';
-			$params = array($file);
-		}
-		$sql = 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`,
-					   `storage_mtime`, `encrypted`, `etag`, `permissions`, `checksum`
-				FROM `*PREFIX*filecache` ' . $where;
-		$result = $this->connection->executeQuery($sql, $params);
-		$data = $result->fetch();
-
-		//FIXME hide this HACK in the next database layer, or just use doctrine and get rid of MDB2 and PDO
-		//PDO returns false, MDB2 returns null, oracle always uses MDB2, so convert null to false
-		if ($data === null) {
-			$data = false;
-		}
-
-		//merge partial data
-		if (!$data and is_string($file)) {
-			if (isset($this->partial[$file])) {
-				$data = $this->partial[$file];
-			}
-			return $data;
-		} else {
-			//fix types
-			$data['fileid'] = (int)$data['fileid'];
-			$data['parent'] = (int)$data['parent'];
-			$data['size'] = 0 + $data['size'];
-			$data['mtime'] = (int)$data['mtime'];
-			$data['storage_mtime'] = (int)$data['storage_mtime'];
-			$data['encryptedVersion'] = (int)$data['encrypted'];
-			$data['encrypted'] = (bool)$data['encrypted'];
-			$data['storage'] = $this->storageId;
-			$data['mimetype'] = $this->mimetypeLoader->getMimetypeById($data['mimetype']);
-			$data['mimepart'] = $this->mimetypeLoader->getMimetypeById($data['mimepart']);
-			if ($data['storage_mtime'] == 0) {
-				$data['storage_mtime'] = $data['mtime'];
-			}
-			$data['permissions'] = (int)$data['permissions'];
-			return new CacheEntry($data);
-		}
-	}
-
-	/**
-	 * get the metadata of all files stored in $folder
-	 *
-	 * @param string $folder
-	 * @return ICacheEntry[]
-	 */
-	public function getFolderContents($folder) {
-		$fileId = $this->getId($folder);
-		return $this->getFolderContentsById($fileId);
-	}
-
-	/**
-	 * get the metadata of all files stored in $folder
-	 *
-	 * @param int $fileId the file id of the folder
-	 * @return ICacheEntry[]
-	 */
-	public function getFolderContentsById($fileId) {
-		if ($fileId > -1) {
-			$sql = 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`,
-						   `storage_mtime`, `encrypted`, `etag`, `permissions`, `checksum`
-					FROM `*PREFIX*filecache` WHERE `parent` = ? ORDER BY `name` ASC';
-			$result = $this->connection->executeQuery($sql, [$fileId]);
-			$files = $result->fetchAll();
-			foreach ($files as &$file) {
-				$file['mimetype'] = $this->mimetypeLoader->getMimetypeById($file['mimetype']);
-				$file['mimepart'] = $this->mimetypeLoader->getMimetypeById($file['mimepart']);
-				if ($file['storage_mtime'] == 0) {
-					$file['storage_mtime'] = $file['mtime'];
-				}
-				$file['permissions'] = (int)$file['permissions'];
-				$file['mtime'] = (int)$file['mtime'];
-				$file['storage_mtime'] = (int)$file['storage_mtime'];
-				$file['size'] = 0 + $file['size'];
-			}
-			return array_map(function (array $data) {
-				return new CacheEntry($data);
-			}, $files);
-		} else {
-			return array();
-		}
-	}
-
-	/**
-	 * insert or update meta data for a file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	public function put($file, array $data) {
-		if (($id = $this->getId($file)) > -1) {
-			$this->update($id, $data);
-			return $id;
-		} else {
-			return $this->insert($file, $data);
-		}
-	}
-
-	/**
-	 * insert meta data for a new file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	public function insert($file, array $data) {
-		// normalize file
-		$file = $this->normalize($file);
-
-		if (isset($this->partial[$file])) { //add any saved partial data
-			$data = array_merge($this->partial[$file], $data);
-			unset($this->partial[$file]);
-		}
-
-		$requiredFields = array('size', 'mtime', 'mimetype');
-		foreach ($requiredFields as $field) {
-			if (!isset($data[$field])) { //data not complete save as partial and return
-				$this->partial[$file] = $data;
-				return -1;
-			}
-		}
-
-		$data['path'] = $file;
-		$data['parent'] = $this->getParentId($file);
-		$data['name'] = \OC_Util::basename($file);
-
-		list($queryParts, $params) = $this->buildParts($data);
-		$queryParts[] = '`storage`';
-		$params[] = $this->getNumericStorageId();
-
-		$queryParts = array_map(function ($item) {
-			return trim($item, "`");
-		}, $queryParts);
-		$values = array_combine($queryParts, $params);
-		if (\OC::$server->getDatabaseConnection()->insertIfNotExist('*PREFIX*filecache', $values, [
-			'storage',
-			'path_hash',
-		])
-		) {
-			return (int)$this->connection->lastInsertId('*PREFIX*filecache');
-		}
-
-		// The file was created in the mean time
-		if (($id = $this->getId($file)) > -1) {
-			$this->update($id, $data);
-			return $id;
-		} else {
-			throw new \RuntimeException('File entry could not be inserted with insertIfNotExist() but could also not be selected with getId() in order to perform an update. Please try again.');
-		}
-	}
-
-	/**
-	 * update the metadata of an existing file or folder in the cache
-	 *
-	 * @param int $id the fileid of the existing file or folder
-	 * @param array $data [$key => $value] the metadata to update, only the fields provided in the array will be updated, non-provided values will remain unchanged
-	 */
-	public function update($id, array $data) {
-
-		if (isset($data['path'])) {
-			// normalize path
-			$data['path'] = $this->normalize($data['path']);
-		}
-
-		if (isset($data['name'])) {
-			// normalize path
-			$data['name'] = $this->normalize($data['name']);
-		}
-
-		list($queryParts, $params) = $this->buildParts($data);
-		// duplicate $params because we need the parts twice in the SQL statement
-		// once for the SET part, once in the WHERE clause
-		$params = array_merge($params, $params);
-		$params[] = $id;
-
-		// don't update if the data we try to set is the same as the one in the record
-		// some databases (Postgres) don't like superfluous updates
-		$sql = 'UPDATE `*PREFIX*filecache` SET ' . implode(' = ?, ', $queryParts) . '=? ' .
-			'WHERE (' .
-			implode(' <> ? OR ', $queryParts) . ' <> ? OR ' .
-			implode(' IS NULL OR ', $queryParts) . ' IS NULL' .
-			') AND `fileid` = ? ';
-		$this->connection->executeQuery($sql, $params);
-
-	}
-
-	/**
-	 * extract query parts and params array from data array
-	 *
-	 * @param array $data
-	 * @return array [$queryParts, $params]
-	 *        $queryParts: string[], the (escaped) column names to be set in the query
-	 *        $params: mixed[], the new values for the columns, to be passed as params to the query
-	 */
-	protected function buildParts(array $data) {
-		$fields = array(
-			'path', 'parent', 'name', 'mimetype', 'size', 'mtime', 'storage_mtime', 'encrypted',
-			'etag', 'permissions', 'checksum');
-
-		$doNotCopyStorageMTime = false;
-		if (array_key_exists('mtime', $data) && $data['mtime'] === null) {
-			// this horrific magic tells it to not copy storage_mtime to mtime
-			unset($data['mtime']);
-			$doNotCopyStorageMTime = true;
-		}
-
-		$params = array();
-		$queryParts = array();
-		foreach ($data as $name => $value) {
-			if (array_search($name, $fields) !== false) {
-				if ($name === 'path') {
-					$params[] = md5($value);
-					$queryParts[] = '`path_hash`';
-				} elseif ($name === 'mimetype') {
-					$params[] = $this->mimetypeLoader->getId(substr($value, 0, strpos($value, '/')));
-					$queryParts[] = '`mimepart`';
-					$value = $this->mimetypeLoader->getId($value);
-				} elseif ($name === 'storage_mtime') {
-					if (!$doNotCopyStorageMTime && !isset($data['mtime'])) {
-						$params[] = $value;
-						$queryParts[] = '`mtime`';
-					}
-				} elseif ($name === 'encrypted') {
-					if(isset($data['encryptedVersion'])) {
-						$value = $data['encryptedVersion'];
-					} else {
-						// Boolean to integer conversion
-						$value = $value ? 1 : 0;
-					}
-				}
-				$params[] = $value;
-				$queryParts[] = '`' . $name . '`';
-			}
-		}
-		return array($queryParts, $params);
-	}
-
-	/**
-	 * get the file id for a file
-	 *
-	 * A file id is a numeric id for a file or folder that's unique within an owncloud instance which stays the same for the lifetime of a file
-	 *
-	 * File ids are easiest way for apps to store references to a file since unlike paths they are not affected by renames or sharing
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getId($file) {
-		// normalize file
-		$file = $this->normalize($file);
-
-		$pathHash = md5($file);
-
-		$sql = 'SELECT `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?';
-		$result = $this->connection->executeQuery($sql, array($this->getNumericStorageId(), $pathHash));
-		if ($row = $result->fetch()) {
-			return $row['fileid'];
-		} else {
-			return -1;
-		}
-	}
-
-	/**
-	 * get the id of the parent folder of a file
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getParentId($file) {
-		if ($file === '') {
-			return -1;
-		} else {
-			$parent = $this->getParentPath($file);
-			return (int)$this->getId($parent);
-		}
-	}
-
-	private function getParentPath($path) {
-		$parent = dirname($path);
-		if ($parent === '.') {
-			$parent = '';
-		}
-		return $parent;
-	}
-
-	/**
-	 * check if a file is available in the cache
-	 *
-	 * @param string $file
-	 * @return bool
-	 */
-	public function inCache($file) {
-		return $this->getId($file) != -1;
-	}
-
-	/**
-	 * remove a file or folder from the cache
-	 *
-	 * when removing a folder from the cache all files and folders inside the folder will be removed as well
-	 *
-	 * @param string $file
-	 */
-	public function remove($file) {
-		$entry = $this->get($file);
-		$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `fileid` = ?';
-		$this->connection->executeQuery($sql, array($entry['fileid']));
-		if ($entry['mimetype'] === 'httpd/unix-directory') {
-			$this->removeChildren($entry);
-		}
-	}
-
-	/**
-	 * Get all sub folders of a folder
-	 *
-	 * @param array $entry the cache entry of the folder to get the subfolders for
-	 * @return array[] the cache entries for the subfolders
-	 */
-	private function getSubFolders($entry) {
-		$children = $this->getFolderContentsById($entry['fileid']);
-		return array_filter($children, function ($child) {
-			return $child['mimetype'] === 'httpd/unix-directory';
-		});
-	}
-
-	/**
-	 * Recursively remove all children of a folder
-	 *
-	 * @param array $entry the cache entry of the folder to remove the children of
-	 * @throws \OC\DatabaseException
-	 */
-	private function removeChildren($entry) {
-		$subFolders = $this->getSubFolders($entry);
-		foreach ($subFolders as $folder) {
-			$this->removeChildren($folder);
-		}
-		$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `parent` = ?';
-		$this->connection->executeQuery($sql, array($entry['fileid']));
-	}
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * @param string $source
-	 * @param string $target
-	 */
-	public function move($source, $target) {
-		$this->moveFromCache($this, $source, $target);
-	}
-
-	/**
-	 * Get the storage id and path needed for a move
-	 *
-	 * @param string $path
-	 * @return array [$storageId, $internalPath]
-	 */
-	protected function getMoveInfo($path) {
-		return [$this->getNumericStorageId(), $path];
-	}
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * @param \OCP\Files\Cache\ICache $sourceCache
-	 * @param string $sourcePath
-	 * @param string $targetPath
-	 * @throws \OC\DatabaseException
-	 */
-	public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
-		if ($sourceCache instanceof Cache) {
-			// normalize source and target
-			$sourcePath = $this->normalize($sourcePath);
-			$targetPath = $this->normalize($targetPath);
-
-			$sourceData = $sourceCache->get($sourcePath);
-			$sourceId = $sourceData['fileid'];
-			$newParentId = $this->getParentId($targetPath);
-
-			list($sourceStorageId, $sourcePath) = $sourceCache->getMoveInfo($sourcePath);
-			list($targetStorageId, $targetPath) = $this->getMoveInfo($targetPath);
-
-			// sql for final update
-			$moveSql = 'UPDATE `*PREFIX*filecache` SET `storage` =  ?, `path` = ?, `path_hash` = ?, `name` = ?, `parent` =? WHERE `fileid` = ?';
-
-			if ($sourceData['mimetype'] === 'httpd/unix-directory') {
-				//find all child entries
-				$sql = 'SELECT `path`, `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path` LIKE ?';
-				$result = $this->connection->executeQuery($sql, [$sourceStorageId, $this->connection->escapeLikeParameter($sourcePath) . '/%']);
-				$childEntries = $result->fetchAll();
-				$sourceLength = strlen($sourcePath);
-				$this->connection->beginTransaction();
-				$query = $this->connection->prepare('UPDATE `*PREFIX*filecache` SET `storage` = ?, `path` = ?, `path_hash` = ? WHERE `fileid` = ?');
-
-				foreach ($childEntries as $child) {
-					$newTargetPath = $targetPath . substr($child['path'], $sourceLength);
-					$query->execute([$targetStorageId, $newTargetPath, md5($newTargetPath), $child['fileid']]);
-				}
-				$this->connection->executeQuery($moveSql, [$targetStorageId, $targetPath, md5($targetPath), basename($targetPath), $newParentId, $sourceId]);
-				$this->connection->commit();
-			} else {
-				$this->connection->executeQuery($moveSql, [$targetStorageId, $targetPath, md5($targetPath), basename($targetPath), $newParentId, $sourceId]);
-			}
-		} else {
-			$this->moveFromCacheFallback($sourceCache, $sourcePath, $targetPath);
-		}
-	}
-
-	/**
-	 * remove all entries for files that are stored on the storage from the cache
-	 */
-	public function clear() {
-		$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `storage` = ?';
-		$this->connection->executeQuery($sql, array($this->getNumericStorageId()));
-
-		$sql = 'DELETE FROM `*PREFIX*storages` WHERE `id` = ?';
-		$this->connection->executeQuery($sql, array($this->storageId));
-	}
-
-	/**
-	 * Get the scan status of a file
-	 *
-	 * - Cache::NOT_FOUND: File is not in the cache
-	 * - Cache::PARTIAL: File is not stored in the cache but some incomplete data is known
-	 * - Cache::SHALLOW: The folder and it's direct children are in the cache but not all sub folders are fully scanned
-	 * - Cache::COMPLETE: The file or folder, with all it's children) are fully scanned
-	 *
-	 * @param string $file
-	 *
-	 * @return int Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE
-	 */
-	public function getStatus($file) {
-		// normalize file
-		$file = $this->normalize($file);
-
-		$pathHash = md5($file);
-		$sql = 'SELECT `size` FROM `*PREFIX*filecache` WHERE `storage` = ? AND `path_hash` = ?';
-		$result = $this->connection->executeQuery($sql, array($this->getNumericStorageId(), $pathHash));
-		if ($row = $result->fetch()) {
-			if ((int)$row['size'] === -1) {
-				return self::SHALLOW;
-			} else {
-				return self::COMPLETE;
-			}
-		} else {
-			if (isset($this->partial[$file])) {
-				return self::PARTIAL;
-			} else {
-				return self::NOT_FOUND;
-			}
-		}
-	}
-
-	/**
-	 * search for files matching $pattern
-	 *
-	 * @param string $pattern the search pattern using SQL search syntax (e.g. '%searchstring%')
-	 * @return ICacheEntry[] an array of cache entries where the name matches the search pattern
-	 */
-	public function search($pattern) {
-		// normalize pattern
-		$pattern = $this->normalize($pattern);
-
-
-		$sql = '
-			SELECT `fileid`, `storage`, `path`, `parent`, `name`,
-				`mimetype`, `mimepart`, `size`, `mtime`, `encrypted`,
-				`etag`, `permissions`, `checksum`
-			FROM `*PREFIX*filecache`
-			WHERE `storage` = ? AND `name` ILIKE ?';
-		$result = $this->connection->executeQuery($sql,
-			[$this->getNumericStorageId(), $pattern]
-		);
-
-		$files = [];
-		while ($row = $result->fetch()) {
-			$row['mimetype'] = $this->mimetypeLoader->getMimetypeById($row['mimetype']);
-			$row['mimepart'] = $this->mimetypeLoader->getMimetypeById($row['mimepart']);
-			$files[] = $row;
-		}
-		return array_map(function(array $data) {
-			return new CacheEntry($data);
-		}, $files);
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype either a full mimetype to search ('text/plain') or only the first part of a mimetype ('image')
-	 *        where it will search for all mimetypes in the group ('image/*')
-	 * @return ICacheEntry[] an array of cache entries where the mimetype matches the search
-	 */
-	public function searchByMime($mimetype) {
-		if (strpos($mimetype, '/')) {
-			$where = '`mimetype` = ?';
-		} else {
-			$where = '`mimepart` = ?';
-		}
-		$sql = 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, `mimetype`, `mimepart`, `size`, `mtime`, `encrypted`, `etag`, `permissions`, `checksum`
-				FROM `*PREFIX*filecache` WHERE ' . $where . ' AND `storage` = ?';
-		$mimetype = $this->mimetypeLoader->getId($mimetype);
-		$result = $this->connection->executeQuery($sql, array($mimetype, $this->getNumericStorageId()));
-		$files = array();
-		while ($row = $result->fetch()) {
-			$row['mimetype'] = $this->mimetypeLoader->getMimetypeById($row['mimetype']);
-			$row['mimepart'] = $this->mimetypeLoader->getMimetypeById($row['mimepart']);
-			$files[] = $row;
-		}
-		return array_map(function (array $data) {
-			return new CacheEntry($data);
-		}, $files);
-	}
-
-	/**
-	 * Search for files by tag of a given users.
-	 *
-	 * Note that every user can tag files differently.
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return ICacheEntry[] file data
-	 */
-	public function searchByTag($tag, $userId) {
-		$sql = 'SELECT `fileid`, `storage`, `path`, `parent`, `name`, ' .
-			'`mimetype`, `mimepart`, `size`, `mtime`, ' .
-			'`encrypted`, `etag`, `permissions`, `checksum` ' .
-			'FROM `*PREFIX*filecache` `file`, ' .
-			'`*PREFIX*vcategory_to_object` `tagmap`, ' .
-			'`*PREFIX*vcategory` `tag` ' .
-			// JOIN filecache to vcategory_to_object
-			'WHERE `file`.`fileid` = `tagmap`.`objid` ' .
-			// JOIN vcategory_to_object to vcategory
-			'AND `tagmap`.`type` = `tag`.`type` ' .
-			'AND `tagmap`.`categoryid` = `tag`.`id` ' .
-			// conditions
-			'AND `file`.`storage` = ? ' .
-			'AND `tag`.`type` = \'files\' ' .
-			'AND `tag`.`uid` = ? ';
-		if (is_int($tag)) {
-			$sql .= 'AND `tag`.`id` = ? ';
-		} else {
-			$sql .= 'AND `tag`.`category` = ? ';
-		}
-		$result = $this->connection->executeQuery(
-			$sql,
-			[
-				$this->getNumericStorageId(),
-				$userId,
-				$tag
-			]
-		);
-		$files = array();
-		while ($row = $result->fetch()) {
-			$files[] = $row;
-		}
-		return array_map(function (array $data) {
-			return new CacheEntry($data);
-		}, $files);
-	}
-
-	/**
-	 * Re-calculate the folder size and the size of all parent folders
-	 *
-	 * @param string|boolean $path
-	 * @param array $data (optional) meta data of the folder
-	 */
-	public function correctFolderSize($path, $data = null) {
-		$this->calculateFolderSize($path, $data);
-		if ($path !== '') {
-			$parent = dirname($path);
-			if ($parent === '.' or $parent === '/') {
-				$parent = '';
-			}
-			$this->correctFolderSize($parent);
-		}
-	}
-
-	/**
-	 * calculate the size of a folder and set it in the cache
-	 *
-	 * @param string $path
-	 * @param array $entry (optional) meta data of the folder
-	 * @return int
-	 */
-	public function calculateFolderSize($path, $entry = null) {
-		$totalSize = 0;
-		if (is_null($entry) or !isset($entry['fileid'])) {
-			$entry = $this->get($path);
-		}
-		if (isset($entry['mimetype']) && $entry['mimetype'] === 'httpd/unix-directory') {
-			$id = $entry['fileid'];
-			$sql = 'SELECT SUM(`size`) AS f1, MIN(`size`) AS f2 ' .
-				'FROM `*PREFIX*filecache` ' .
-				'WHERE `parent` = ? AND `storage` = ?';
-			$result = $this->connection->executeQuery($sql, array($id, $this->getNumericStorageId()));
-			if ($row = $result->fetch()) {
-				$result->closeCursor();
-				list($sum, $min) = array_values($row);
-				$sum = 0 + $sum;
-				$min = 0 + $min;
-				if ($min === -1) {
-					$totalSize = $min;
-				} else {
-					$totalSize = $sum;
-				}
-				$update = array();
-				if ($entry['size'] !== $totalSize) {
-					$update['size'] = $totalSize;
-				}
-				if (count($update) > 0) {
-					$this->update($id, $update);
-				}
-			} else {
-				$result->closeCursor();
-			}
-		}
-		return $totalSize;
-	}
-
-	/**
-	 * get all file ids on the files on the storage
-	 *
-	 * @return int[]
-	 */
-	public function getAll() {
-		$sql = 'SELECT `fileid` FROM `*PREFIX*filecache` WHERE `storage` = ?';
-		$result = $this->connection->executeQuery($sql, array($this->getNumericStorageId()));
-		$ids = array();
-		while ($row = $result->fetch()) {
-			$ids[] = $row['fileid'];
-		}
-		return $ids;
-	}
-
-	/**
-	 * find a folder in the cache which has not been fully scanned
-	 *
-	 * If multiple incomplete folders are in the cache, the one with the highest id will be returned,
-	 * use the one with the highest id gives the best result with the background scanner, since that is most
-	 * likely the folder where we stopped scanning previously
-	 *
-	 * @return string|bool the path of the folder or false when no folder matched
-	 */
-	public function getIncomplete() {
-		$query = $this->connection->prepare('SELECT `path` FROM `*PREFIX*filecache`'
-			. ' WHERE `storage` = ? AND `size` = -1 ORDER BY `fileid` DESC', 1);
-		$query->execute([$this->getNumericStorageId()]);
-		if ($row = $query->fetch()) {
-			return $row['path'];
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * get the path of a file on this storage by it's file id
-	 *
-	 * @param int $id the file id of the file or folder to search
-	 * @return string|null the path of the file (relative to the storage) or null if a file with the given id does not exists within this cache
-	 */
-	public function getPathById($id) {
-		$sql = 'SELECT `path` FROM `*PREFIX*filecache` WHERE `fileid` = ? AND `storage` = ?';
-		$result = $this->connection->executeQuery($sql, array($id, $this->getNumericStorageId()));
-		if ($row = $result->fetch()) {
-			// Oracle stores empty strings as null...
-			if ($row['path'] === null) {
-				return '';
-			}
-			return $row['path'];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * get the storage id of the storage for a file and the internal path of the file
-	 * unlike getPathById this does not limit the search to files on this storage and
-	 * instead does a global search in the cache table
-	 *
-	 * @param int $id
-	 * @deprecated use getPathById() instead
-	 * @return array first element holding the storage id, second the path
-	 */
-	static public function getById($id) {
-		$connection = \OC::$server->getDatabaseConnection();
-		$sql = 'SELECT `storage`, `path` FROM `*PREFIX*filecache` WHERE `fileid` = ?';
-		$result = $connection->executeQuery($sql, array($id));
-		if ($row = $result->fetch()) {
-			$numericId = $row['storage'];
-			$path = $row['path'];
-		} else {
-			return null;
-		}
-
-		if ($id = Storage::getStorageId($numericId)) {
-			return array($id, $path);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * normalize the given path
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function normalize($path) {
-
-		return trim(\OC_Util::normalizeUnicode($path), '/');
-	}
-}
diff --git a/lib/private/files/cache/cacheentry.php b/lib/private/files/cache/cacheentry.php
deleted file mode 100644
index 6d3c5d5b089..00000000000
--- a/lib/private/files/cache/cacheentry.php
+++ /dev/null
@@ -1,114 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Files\Cache\ICacheEntry;
-
-/**
- * meta data for a file or folder
- */
-class CacheEntry implements ICacheEntry, \ArrayAccess {
-	/**
-	 * @var array
-	 */
-	private $data;
-
-	public function __construct(array $data) {
-		$this->data = $data;
-	}
-
-	public function offsetSet($offset, $value) {
-		$this->data[$offset] = $value;
-	}
-
-	public function offsetExists($offset) {
-		return isset($this->data[$offset]);
-	}
-
-	public function offsetUnset($offset) {
-		unset($this->data[$offset]);
-	}
-
-	public function offsetGet($offset) {
-		if (isset($this->data[$offset])) {
-			return $this->data[$offset];
-		} else {
-			return null;
-		}
-	}
-
-	public function getId() {
-		return (int)$this->data['fileid'];
-	}
-
-	public function getStorageId() {
-		return $this->data['storage'];
-	}
-
-
-	public function getPath() {
-		return $this->data['path'];
-	}
-
-
-	public function getName() {
-		return $this->data['name'];
-	}
-
-
-	public function getMimeType() {
-		return $this->data['mimetype'];
-	}
-
-
-	public function getMimePart() {
-		return $this->data['mimepart'];
-	}
-
-	public function getSize() {
-		return $this->data['size'];
-	}
-
-	public function getMTime() {
-		return $this->data['mtime'];
-	}
-
-	public function getStorageMTime() {
-		return $this->data['storage_mtime'];
-	}
-
-	public function getEtag() {
-		return $this->data['etag'];
-	}
-
-	public function getPermissions() {
-		return $this->data['permissions'];
-	}
-
-	public function isEncrypted() {
-		return isset($this->data['encrypted']) && $this->data['encrypted'];
-	}
-
-	public function getData() {
-		return $this->data;
-	}
-}
diff --git a/lib/private/files/cache/failedcache.php b/lib/private/files/cache/failedcache.php
deleted file mode 100644
index 0386ba3ca32..00000000000
--- a/lib/private/files/cache/failedcache.php
+++ /dev/null
@@ -1,142 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Constants;
-use OCP\Files\Cache\ICache;
-
-/**
- * Storage placeholder to represent a missing precondition, storage unavailable
- */
-class FailedCache implements ICache {
-	/** @var bool whether to show the failed storage in the ui */
-	private $visible;
-
-	/**
-	 * FailedCache constructor.
-	 *
-	 * @param bool $visible
-	 */
-	public function __construct($visible = true) {
-		$this->visible = $visible;
-	}
-
-
-	public function getNumericStorageId() {
-		return -1;
-	}
-
-	public function get($file) {
-		if ($file === '') {
-			return new CacheEntry([
-				'fileid' => -1,
-				'size' => 0,
-				'mimetype' => 'httpd/unix-directory',
-				'mimepart' => 'httpd',
-				'permissions' => $this->visible ? Constants::PERMISSION_READ : 0,
-				'mtime' => time()
-			]);
-		} else {
-			return false;
-		}
-	}
-
-	public function getFolderContents($folder) {
-		return [];
-	}
-
-	public function getFolderContentsById($fileId) {
-		return [];
-	}
-
-	public function put($file, array $data) {
-		return;
-	}
-
-	public function insert($file, array $data) {
-		return;
-	}
-
-	public function update($id, array $data) {
-		return;
-	}
-
-	public function getId($file) {
-		return -1;
-	}
-
-	public function getParentId($file) {
-		return -1;
-	}
-
-	public function inCache($file) {
-		return false;
-	}
-
-	public function remove($file) {
-		return;
-	}
-
-	public function move($source, $target) {
-		return;
-	}
-
-	public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
-		return;
-	}
-
-	public function clear() {
-		return;
-	}
-
-	public function getStatus($file) {
-		return ICache::NOT_FOUND;
-	}
-
-	public function search($pattern) {
-		return [];
-	}
-
-	public function searchByMime($mimetype) {
-		return [];
-	}
-
-	public function searchByTag($tag, $userId) {
-		return [];
-	}
-
-	public function getAll() {
-		return [];
-	}
-
-	public function getIncomplete() {
-		return [];
-	}
-
-	public function getPathById($id) {
-		return null;
-	}
-
-	public function normalize($path) {
-		return $path;
-	}
-}
diff --git a/lib/private/files/cache/homecache.php b/lib/private/files/cache/homecache.php
deleted file mode 100644
index ae92504ddd6..00000000000
--- a/lib/private/files/cache/homecache.php
+++ /dev/null
@@ -1,86 +0,0 @@
-<?php
-/**
- * @author Andreas Fischer <bantu@owncloud.com>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Files\Cache\ICacheEntry;
-
-class HomeCache extends Cache {
-	/**
-	 * get the size of a folder and set it in the cache
-	 *
-	 * @param string $path
-	 * @param array $entry (optional) meta data of the folder
-	 * @return int
-	 */
-	public function calculateFolderSize($path, $entry = null) {
-		if ($path !== '/' and $path !== '' and $path !== 'files' and $path !== 'files_trashbin' and $path !== 'files_versions') {
-			return parent::calculateFolderSize($path, $entry);
-		} elseif ($path === '' or $path === '/') {
-			// since the size of / isn't used (the size of /files is used instead) there is no use in calculating it
-			return 0;
-		}
-
-		$totalSize = 0;
-		if (is_null($entry)) {
-			$entry = $this->get($path);
-		}
-		if ($entry && $entry['mimetype'] === 'httpd/unix-directory') {
-			$id = $entry['fileid'];
-			$sql = 'SELECT SUM(`size`) AS f1 ' .
-			   'FROM `*PREFIX*filecache` ' .
-				'WHERE `parent` = ? AND `storage` = ? AND `size` >= 0';
-			$result = \OC_DB::executeAudited($sql, array($id, $this->getNumericStorageId()));
-			if ($row = $result->fetchRow()) {
-				$result->closeCursor();
-				list($sum) = array_values($row);
-				$totalSize = 0 + $sum;
-				$entry['size'] += 0;
-				if ($entry['size'] !== $totalSize) {
-					$this->update($id, array('size' => $totalSize));
-				}
-			}
-		}
-		return $totalSize;
-	}
-
-	/**
-	 * @param string $path
-	 * @return ICacheEntry
-	 */
-	public function get($path) {
-		$data = parent::get($path);
-		if ($path === '' or $path === '/') {
-			// only the size of the "files" dir counts
-			$filesData = parent::get('files');
-
-			if (isset($filesData['size'])) {
-				$data['size'] = $filesData['size'];
-			}
-		}
-		return $data;
-	}
-}
diff --git a/lib/private/files/cache/homepropagator.php b/lib/private/files/cache/homepropagator.php
deleted file mode 100644
index 8edca9c0c87..00000000000
--- a/lib/private/files/cache/homepropagator.php
+++ /dev/null
@@ -1,50 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-class HomePropagator extends Propagator {
-	private $ignoredBaseFolders;
-
-	/**
-	 * @param \OC\Files\Storage\Storage $storage
-	 */
-	public function __construct(\OC\Files\Storage\Storage $storage) {
-		parent::__construct($storage);
-		$this->ignoredBaseFolders = ['files_encryption'];
-	}
-
-
-	/**
-	 * @param string $internalPath
-	 * @param int $time
-	 * @param int $sizeDifference number of bytes the file has grown
-	 * @return array[] all propagated entries
-	 */
-	public function propagateChange($internalPath, $time, $sizeDifference = 0) {
-		list($baseFolder) = explode('/', $internalPath, 2);
-		if (in_array($baseFolder, $this->ignoredBaseFolders)) {
-			return [];
-		} else {
-			return parent::propagateChange($internalPath, $time, $sizeDifference);
-		}
-	}
-}
diff --git a/lib/private/files/cache/movefromcachetrait.php b/lib/private/files/cache/movefromcachetrait.php
deleted file mode 100644
index 7d8ed7b5d21..00000000000
--- a/lib/private/files/cache/movefromcachetrait.php
+++ /dev/null
@@ -1,87 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Files\Cache\ICache;
-use OCP\Files\Cache\ICacheEntry;
-
-/**
- * Fallback implementation for moveFromCache
- */
-trait MoveFromCacheTrait {
-	/**
-	 * store meta data for a file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	abstract public function put($file, array $data);
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * @param \OCP\Files\Cache\ICache $sourceCache
-	 * @param string $sourcePath
-	 * @param string $targetPath
-	 */
-	public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
-		$sourceEntry = $sourceCache->get($sourcePath);
-
-		$this->copyFromCache($sourceCache, $sourceEntry, $targetPath);
-
-		$sourceCache->remove($sourcePath);
-	}
-
-	/**
-	 * Copy a file or folder in the cache
-	 *
-	 * @param \OCP\Files\Cache\ICache $sourceCache
-	 * @param ICacheEntry $sourceEntry
-	 * @param string $targetPath
-	 */
-	public function copyFromCache(ICache $sourceCache, ICacheEntry $sourceEntry, $targetPath) {
-		$this->put($targetPath, $this->cacheEntryToArray($sourceEntry));
-		if ($sourceEntry->getMimeType() === ICacheEntry::DIRECTORY_MIMETYPE) {
-			$folderContent = $sourceCache->getFolderContentsById($sourceEntry->getId());
-			foreach ($folderContent as $subEntry) {
-				$subTargetPath = $targetPath . '/' . $subEntry->getName();
-				$this->copyFromCache($sourceCache, $subEntry, $subTargetPath);
-			}
-		}
-	}
-
-	private function cacheEntryToArray(ICacheEntry $entry) {
-		return [
-			'size' => $entry->getSize(),
-			'mtime' => $entry->getMTime(),
-			'storage_mtime' => $entry->getStorageMTime(),
-			'mimetype' => $entry->getMimeType(),
-			'mimepart' => $entry->getMimePart(),
-			'etag' => $entry->getEtag(),
-			'permissions' => $entry->getPermissions(),
-			'encrypted' => $entry->isEncrypted()
-		];
-	}
-}
diff --git a/lib/private/files/cache/propagator.php b/lib/private/files/cache/propagator.php
deleted file mode 100644
index 50264e54d44..00000000000
--- a/lib/private/files/cache/propagator.php
+++ /dev/null
@@ -1,74 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OCP\Files\Cache\IPropagator;
-
-/**
- * Propagate etags and mtimes within the storage
- */
-class Propagator implements IPropagator {
-	/**
-	 * @var \OC\Files\Storage\Storage
-	 */
-	protected $storage;
-
-	/**
-	 * @param \OC\Files\Storage\Storage $storage
-	 */
-	public function __construct(\OC\Files\Storage\Storage $storage) {
-		$this->storage = $storage;
-	}
-
-
-	/**
-	 * @param string $internalPath
-	 * @param int $time
-	 * @param int $sizeDifference number of bytes the file has grown
-	 * @return array[] all propagated entries
-	 */
-	public function propagateChange($internalPath, $time, $sizeDifference = 0) {
-		$cache = $this->storage->getCache($internalPath);
-
-		$parentId = $cache->getParentId($internalPath);
-		$propagatedEntries = [];
-		while ($parentId !== -1) {
-			$entry = $cache->get($parentId);
-			$propagatedEntries[] = $entry;
-			if (!$entry) {
-				return $propagatedEntries;
-			}
-			$mtime = max($time, $entry['mtime']);
-
-			if ($entry['size'] === -1) {
-				$newSize = -1;
-			} else {
-				$newSize = $entry['size'] + $sizeDifference;
-			}
-			$cache->update($parentId, ['mtime' => $mtime, 'etag' => $this->storage->getETag($entry['path']), 'size' => $newSize]);
-
-			$parentId = $entry['parent'];
-		}
-
-		return $propagatedEntries;
-	}
-}
diff --git a/lib/private/files/cache/scanner.php b/lib/private/files/cache/scanner.php
deleted file mode 100644
index 8730707f1c2..00000000000
--- a/lib/private/files/cache/scanner.php
+++ /dev/null
@@ -1,503 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Martin Mattel <martin.mattel@diemattels.at>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Owen Winkler <a_github@midnightcircus.com>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-use OC\Files\Filesystem;
-use OC\Hooks\BasicEmitter;
-use OCP\Config;
-use OCP\Files\Cache\IScanner;
-use OCP\Files\Storage\ILockingStorage;
-use OCP\Lock\ILockingProvider;
-
-/**
- * Class Scanner
- *
- * Hooks available in scope \OC\Files\Cache\Scanner:
- *  - scanFile(string $path, string $storageId)
- *  - scanFolder(string $path, string $storageId)
- *  - postScanFile(string $path, string $storageId)
- *  - postScanFolder(string $path, string $storageId)
- *
- * @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) {
-
-		// 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);
-				}
-			}
-
-			$data = $this->getData($file);
-
-			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 = $this->cache->getId($parent);
-				}
-
-				// 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);
-					$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')) {
-				$this->storage->acquireLock($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, $lock);
-			$data['size'] = $size;
-		}
-		if ($lock) {
-			if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$this->storage->releaseLock($path, ILockingProvider::LOCK_SHARED, $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[] = $file;
-					}
-				}
-			}
-		}
-		return $children;
-	}
-
-	/**
-	 * scan all the files and folders in a folder
-	 *
-	 * @param string $path
-	 * @param bool $recursive
-	 * @param int $reuse
-	 * @param array $folderData existing cache data 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, $folderData = 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;
-		$childQueue = array();
-		if (is_array($folderData) and isset($folderData['fileid'])) {
-			$folderId = $folderData['fileid'];
-		} else {
-			$folderId = $this->cache->getId($path);
-		}
-		$existingChildren = $this->getExistingChildren($folderId);
-		$newChildren = $this->getNewChildren($path);
-
-		if ($this->useTransactions) {
-			\OC::$server->getDatabaseConnection()->beginTransaction();
-		}
-		$exceptionOccurred = false;
-		foreach ($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] = $data;
-					} else if ($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();
-		}
-
-		foreach ($childQueue as $child => $childData) {
-			$childSize = $this->scanChildren($child, self::SCAN_RECURSIVE, $reuse, $childData, $lock);
-			if ($childSize === -1) {
-				$size = -1;
-			} else if ($size !== -1) {
-				$size += $childSize;
-			}
-		}
-		if (!is_array($folderData) or !isset($folderData['size']) or $folderData['size'] !== $size) {
-			$this->updateCache($path, array('size' => $size), $folderId);
-		}
-		$this->emit('\OC\Files\Cache\Scanner', 'postScanFolder', array($path, $this->storageId));
-		return $size;
-	}
-
-	/**
-	 * 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, self::REUSE_ETAG);
-				}, $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) {
-				$this->cache->correctFolderSize($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;
-	}
-}
diff --git a/lib/private/files/cache/storage.php b/lib/private/files/cache/storage.php
deleted file mode 100644
index 90c451ecc21..00000000000
--- a/lib/private/files/cache/storage.php
+++ /dev/null
@@ -1,189 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-
-/**
- * Handle the mapping between the string and numeric storage ids
- *
- * Each storage has 2 different ids
- * 	a string id which is generated by the storage backend and reflects the configuration of the storage (e.g. 'smb://user@host/share')
- * 	and a numeric storage id which is referenced in the file cache
- *
- * A mapping between the two storage ids is stored in the database and accessible trough this class
- *
- * @package OC\Files\Cache
- */
-class Storage {
-	private $storageId;
-	private $numericId;
-
-	/**
-	 * @param \OC\Files\Storage\Storage|string $storage
-	 * @param bool $isAvailable
-	 * @throws \RuntimeException
-	 */
-	public function __construct($storage, $isAvailable = true) {
-		if ($storage instanceof \OC\Files\Storage\Storage) {
-			$this->storageId = $storage->getId();
-		} else {
-			$this->storageId = $storage;
-		}
-		$this->storageId = self::adjustStorageId($this->storageId);
-
-		if ($row = self::getStorageById($this->storageId)) {
-			$this->numericId = $row['numeric_id'];
-		} else {
-			$connection = \OC::$server->getDatabaseConnection();
-			$available = $isAvailable ? 1 : 0;
-			if ($connection->insertIfNotExist('*PREFIX*storages', ['id' => $this->storageId, 'available' => $available])) {
-				$this->numericId = $connection->lastInsertId('*PREFIX*storages');
-			} else {
-				if ($row = self::getStorageById($this->storageId)) {
-					$this->numericId = $row['numeric_id'];
-				} else {
-					throw new \RuntimeException('Storage could neither be inserted nor be selected from the database');
-				}
-			}
-		}
-	}
-
-	/**
-	 * @param string $storageId
-	 * @return array|null
-	 */
-	public static function getStorageById($storageId) {
-		$sql = 'SELECT * FROM `*PREFIX*storages` WHERE `id` = ?';
-		$result = \OC_DB::executeAudited($sql, array($storageId));
-		return $result->fetchRow();
-	}
-
-	/**
-	 * Adjusts the storage id to use md5 if too long
-	 * @param string $storageId storage id
-	 * @return string unchanged $storageId if its length is less than 64 characters,
-	 * else returns the md5 of $storageId
-	 */
-	public static function adjustStorageId($storageId) {
-		if (strlen($storageId) > 64) {
-			return md5($storageId);
-		}
-		return $storageId;
-	}
-
-	/**
-	 * Get the numeric id for the storage
-	 *
-	 * @return int
-	 */
-	public function getNumericId() {
-		return $this->numericId;
-	}
-
-	/**
-	 * Get the string id for the storage
-	 *
-	 * @param int $numericId
-	 * @return string|null either the storage id string or null if the numeric id is not known
-	 */
-	public static function getStorageId($numericId) {
-
-		$sql = 'SELECT `id` FROM `*PREFIX*storages` WHERE `numeric_id` = ?';
-		$result = \OC_DB::executeAudited($sql, array($numericId));
-		if ($row = $result->fetchRow()) {
-			return $row['id'];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Get the numeric of the storage with the provided string id
-	 *
-	 * @param $storageId
-	 * @return int|null either the numeric storage id or null if the storage id is not knwon
-	 */
-	public static function getNumericStorageId($storageId) {
-		$storageId = self::adjustStorageId($storageId);
-
-		if ($row = self::getStorageById($storageId)) {
-			return $row['numeric_id'];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @return array|null [ available, last_checked ]
-	 */
-	public function getAvailability() {
-		if ($row = self::getStorageById($this->storageId)) {
-			return [
-				'available' => ((int)$row['available'] === 1),
-				'last_checked' => $row['last_checked']
-			];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @param bool $isAvailable
-	 */
-	public function setAvailability($isAvailable) {
-		$sql = 'UPDATE `*PREFIX*storages` SET `available` = ?, `last_checked` = ? WHERE `id` = ?';
-		$available = $isAvailable ? 1 : 0;
-		\OC_DB::executeAudited($sql, array($available, time(), $this->storageId));
-	}
-
-	/**
-	 * Check if a string storage id is known
-	 *
-	 * @param string $storageId
-	 * @return bool
-	 */
-	public static function exists($storageId) {
-		return !is_null(self::getNumericStorageId($storageId));
-	}
-
-	/**
-	 * remove the entry for the storage
-	 *
-	 * @param string $storageId
-	 */
-	public static function remove($storageId) {
-		$storageId = self::adjustStorageId($storageId);
-		$numericId = self::getNumericStorageId($storageId);
-		$sql = 'DELETE FROM `*PREFIX*storages` WHERE `id` = ?';
-		\OC_DB::executeAudited($sql, array($storageId));
-
-		if (!is_null($numericId)) {
-			$sql = 'DELETE FROM `*PREFIX*filecache` WHERE `storage` = ?';
-			\OC_DB::executeAudited($sql, array($numericId));
-		}
-	}
-}
diff --git a/lib/private/files/cache/updater.php b/lib/private/files/cache/updater.php
deleted file mode 100644
index 3f80f2b6167..00000000000
--- a/lib/private/files/cache/updater.php
+++ /dev/null
@@ -1,228 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-use OCP\Files\Cache\IUpdater;
-use OCP\Files\Storage\IStorage;
-
-/**
- * Update the cache and propagate changes
- *
- */
-class Updater implements IUpdater {
-	/**
-	 * @var bool
-	 */
-	protected $enabled = true;
-
-	/**
-	 * @var \OC\Files\Storage\Storage
-	 */
-	protected $storage;
-
-	/**
-	 * @var \OC\Files\Cache\Propagator
-	 */
-	protected $propagator;
-
-	/**
-	 * @var Scanner
-	 */
-	protected $scanner;
-
-	/**
-	 * @var Cache
-	 */
-	protected $cache;
-
-	/**
-	 * @param \OC\Files\Storage\Storage $storage
-	 */
-	public function __construct(\OC\Files\Storage\Storage $storage) {
-		$this->storage = $storage;
-		$this->propagator = $storage->getPropagator();
-		$this->scanner = $storage->getScanner();
-		$this->cache = $storage->getCache();
-	}
-
-	/**
-	 * Disable updating the cache trough this updater
-	 */
-	public function disable() {
-		$this->enabled = false;
-	}
-
-	/**
-	 * Re-enable the updating of the cache trough this updater
-	 */
-	public function enable() {
-		$this->enabled = true;
-	}
-
-	/**
-	 * Get the propagator for etags and mtime for the view the updater works on
-	 *
-	 * @return Propagator
-	 */
-	public function getPropagator() {
-		return $this->propagator;
-	}
-
-	/**
-	 * Propagate etag and mtime changes for the parent folders of $path up to the root of the filesystem
-	 *
-	 * @param string $path the path of the file to propagate the changes for
-	 * @param int|null $time the timestamp to set as mtime for the parent folders, if left out the current time is used
-	 */
-	public function propagate($path, $time = null) {
-		if (Scanner::isPartialFile($path)) {
-			return;
-		}
-		$this->propagator->propagateChange($path, $time);
-	}
-
-	/**
-	 * Update the cache for $path and update the size, etag and mtime of the parent folders
-	 *
-	 * @param string $path
-	 * @param int $time
-	 */
-	public function update($path, $time = null) {
-		if (!$this->enabled or Scanner::isPartialFile($path)) {
-			return;
-		}
-		if (is_null($time)) {
-			$time = time();
-		}
-
-		$data = $this->scanner->scan($path, Scanner::SCAN_SHALLOW, -1, false);
-		if (
-			isset($data['oldSize']) && isset($data['size']) &&
-			!$data['encrypted'] // encryption is a pita and touches the cache itself
-		) {
-			$sizeDifference = $data['size'] - $data['oldSize'];
-		} else {
-			// scanner didn't provide size info, fallback to full size calculation
-			$sizeDifference = 0;
-			$this->cache->correctFolderSize($path, $data);
-		}
-		$this->correctParentStorageMtime($path);
-		$this->propagator->propagateChange($path, $time, $sizeDifference);
-	}
-
-	/**
-	 * Remove $path from the cache and update the size, etag and mtime of the parent folders
-	 *
-	 * @param string $path
-	 */
-	public function remove($path) {
-		if (!$this->enabled or Scanner::isPartialFile($path)) {
-			return;
-		}
-
-		$parent = dirname($path);
-		if ($parent === '.') {
-			$parent = '';
-		}
-
-		$this->cache->remove($path);
-		$this->cache->correctFolderSize($parent);
-		$this->correctParentStorageMtime($path);
-		$this->propagator->propagateChange($path, time());
-	}
-
-	/**
-	 * Rename a file or folder in the cache and update the size, etag and mtime of the parent folders
-	 *
-	 * @param IStorage $sourceStorage
-	 * @param string $source
-	 * @param string $target
-	 */
-	public function renameFromStorage(IStorage $sourceStorage, $source, $target) {
-		if (!$this->enabled or Scanner::isPartialFile($source) or Scanner::isPartialFile($target)) {
-			return;
-		}
-
-		$time = time();
-
-		$sourceCache = $sourceStorage->getCache();
-		$sourceUpdater = $sourceStorage->getUpdater();
-		$sourcePropagator = $sourceStorage->getPropagator();
-
-		if ($sourceCache->inCache($source)) {
-			if ($this->cache->inCache($target)) {
-				$this->cache->remove($target);
-			}
-
-			if ($sourceStorage === $this->storage) {
-				$this->cache->move($source, $target);
-			} else {
-				$this->cache->moveFromCache($sourceCache, $source, $target);
-			}
-		}
-
-		if (pathinfo($source, PATHINFO_EXTENSION) !== pathinfo($target, PATHINFO_EXTENSION)) {
-			// handle mime type change
-			$mimeType = $this->storage->getMimeType($target);
-			$fileId = $this->cache->getId($target);
-			$this->cache->update($fileId, ['mimetype' => $mimeType]);
-		}
-
-		$sourceCache->correctFolderSize($source);
-		$this->cache->correctFolderSize($target);
-		if ($sourceUpdater instanceof Updater) {
-			$sourceUpdater->correctParentStorageMtime($source);
-		}
-		$this->correctParentStorageMtime($target);
-		$this->updateStorageMTimeOnly($target);
-		$sourcePropagator->propagateChange($source, $time);
-		$this->propagator->propagateChange($target, $time);
-	}
-
-	private function updateStorageMTimeOnly($internalPath) {
-		$fileId = $this->cache->getId($internalPath);
-		if ($fileId !== -1) {
-			$this->cache->update(
-				$fileId, [
-					'mtime' => null, // this magic tells it to not overwrite mtime
-					'storage_mtime' => $this->storage->filemtime($internalPath)
-				]
-			);
-		}
-	}
-
-	/**
-	 * update the storage_mtime of the direct parent in the cache to the mtime from the storage
-	 *
-	 * @param string $internalPath
-	 */
-	private function correctParentStorageMtime($internalPath) {
-		$parentId = $this->cache->getParentId($internalPath);
-		$parent = dirname($internalPath);
-		if ($parentId != -1) {
-			$this->cache->update($parentId, array('storage_mtime' => $this->storage->filemtime($parent)));
-		}
-	}
-}
diff --git a/lib/private/files/cache/watcher.php b/lib/private/files/cache/watcher.php
deleted file mode 100644
index a00e875a2d4..00000000000
--- a/lib/private/files/cache/watcher.php
+++ /dev/null
@@ -1,140 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache;
-use OCP\Files\Cache\ICacheEntry;
-use OCP\Files\Cache\IWatcher;
-
-/**
- * check the storage backends for updates and change the cache accordingly
- */
-class Watcher implements IWatcher {
-
-	protected $watchPolicy = self::CHECK_ONCE;
-
-	protected $checkedPaths = array();
-
-	/**
-	 * @var \OC\Files\Storage\Storage $storage
-	 */
-	protected $storage;
-
-	/**
-	 * @var Cache $cache
-	 */
-	protected $cache;
-
-	/**
-	 * @var Scanner $scanner ;
-	 */
-	protected $scanner;
-
-	/**
-	 * @param \OC\Files\Storage\Storage $storage
-	 */
-	public function __construct(\OC\Files\Storage\Storage $storage) {
-		$this->storage = $storage;
-		$this->cache = $storage->getCache();
-		$this->scanner = $storage->getScanner();
-	}
-
-	/**
-	 * @param int $policy either \OC\Files\Cache\Watcher::CHECK_NEVER, \OC\Files\Cache\Watcher::CHECK_ONCE, \OC\Files\Cache\Watcher::CHECK_ALWAYS
-	 */
-	public function setPolicy($policy) {
-		$this->watchPolicy = $policy;
-	}
-
-	/**
-	 * @return int either \OC\Files\Cache\Watcher::CHECK_NEVER, \OC\Files\Cache\Watcher::CHECK_ONCE, \OC\Files\Cache\Watcher::CHECK_ALWAYS
-	 */
-	public function getPolicy() {
-		return $this->watchPolicy;
-	}
-
-	/**
-	 * check $path for updates and update if needed
-	 *
-	 * @param string $path
-	 * @param ICacheEntry|null $cachedEntry
-	 * @return boolean true if path was updated
-	 */
-	public function checkUpdate($path, $cachedEntry = null) {
-		if (is_null($cachedEntry)) {
-			$cachedEntry = $this->cache->get($path);
-		}
-		if ($this->needsUpdate($path, $cachedEntry)) {
-			$this->update($path, $cachedEntry);
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * Update the cache for changes to $path
-	 *
-	 * @param string $path
-	 * @param ICacheEntry $cachedData
-	 */
-	public function update($path, $cachedData) {
-		if ($this->storage->is_dir($path)) {
-			$this->scanner->scan($path, Scanner::SCAN_SHALLOW);
-		} else {
-			$this->scanner->scanFile($path);
-		}
-		if ($cachedData['mimetype'] === 'httpd/unix-directory') {
-			$this->cleanFolder($path);
-		}
-		$this->cache->correctFolderSize($path);
-	}
-
-	/**
-	 * Check if the cache for $path needs to be updated
-	 *
-	 * @param string $path
-	 * @param ICacheEntry $cachedData
-	 * @return bool
-	 */
-	public function needsUpdate($path, $cachedData) {
-		if ($this->watchPolicy === self::CHECK_ALWAYS or ($this->watchPolicy === self::CHECK_ONCE and array_search($path, $this->checkedPaths) === false)) {
-			$this->checkedPaths[] = $path;
-			return $this->storage->hasUpdated($path, $cachedData['storage_mtime']);
-		}
-		return false;
-	}
-
-	/**
-	 * remove deleted files in $path from the cache
-	 *
-	 * @param string $path
-	 */
-	public function cleanFolder($path) {
-		$cachedContent = $this->cache->getFolderContents($path);
-		foreach ($cachedContent as $entry) {
-			if (!$this->storage->file_exists($entry['path'])) {
-				$this->cache->remove($entry['path']);
-			}
-		}
-	}
-}
diff --git a/lib/private/files/cache/wrapper/cachejail.php b/lib/private/files/cache/wrapper/cachejail.php
deleted file mode 100644
index 88b0f23a1fc..00000000000
--- a/lib/private/files/cache/wrapper/cachejail.php
+++ /dev/null
@@ -1,300 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache\Wrapper;
-
-/**
- * Jail to a subdirectory of the wrapped cache
- */
-class CacheJail extends CacheWrapper {
-	/**
-	 * @var string
-	 */
-	protected $root;
-
-	/**
-	 * @param \OCP\Files\Cache\ICache $cache
-	 * @param string $root
-	 */
-	public function __construct($cache, $root) {
-		parent::__construct($cache);
-		$this->root = $root;
-	}
-
-	protected function getSourcePath($path) {
-		if ($path === '') {
-			return $this->root;
-		} else {
-			return $this->root . '/' . ltrim($path, '/');
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return null|string the jailed path or null if the path is outside the jail
-	 */
-	protected function getJailedPath($path) {
-		$rootLength = strlen($this->root) + 1;
-		if ($path === $this->root) {
-			return '';
-		} else if (substr($path, 0, $rootLength) === $this->root . '/') {
-			return substr($path, $rootLength);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @param array $entry
-	 * @return array
-	 */
-	protected function formatCacheEntry($entry) {
-		if (isset($entry['path'])) {
-			$entry['path'] = $this->getJailedPath($entry['path']);
-		}
-		return $entry;
-	}
-
-	protected function filterCacheEntry($entry) {
-		$rootLength = strlen($this->root) + 1;
-		return ($entry['path'] === $this->root) or (substr($entry['path'], 0, $rootLength) === $this->root . '/');
-	}
-
-	/**
-	 * get the stored metadata of a file or folder
-	 *
-	 * @param string /int $file
-	 * @return array|false
-	 */
-	public function get($file) {
-		if (is_string($file) or $file == '') {
-			$file = $this->getSourcePath($file);
-		}
-		return parent::get($file);
-	}
-
-	/**
-	 * insert meta data for a new file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	public function insert($file, array $data) {
-		return $this->cache->insert($this->getSourcePath($file), $data);
-	}
-
-	/**
-	 * update the metadata in the cache
-	 *
-	 * @param int $id
-	 * @param array $data
-	 */
-	public function update($id, array $data) {
-		$this->cache->update($id, $data);
-	}
-
-	/**
-	 * get the file id for a file
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getId($file) {
-		return $this->cache->getId($this->getSourcePath($file));
-	}
-
-	/**
-	 * get the id of the parent folder of a file
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getParentId($file) {
-		if ($file === '') {
-			return -1;
-		} else {
-			return $this->cache->getParentId($this->getSourcePath($file));
-		}
-	}
-
-	/**
-	 * check if a file is available in the cache
-	 *
-	 * @param string $file
-	 * @return bool
-	 */
-	public function inCache($file) {
-		return $this->cache->inCache($this->getSourcePath($file));
-	}
-
-	/**
-	 * remove a file or folder from the cache
-	 *
-	 * @param string $file
-	 */
-	public function remove($file) {
-		$this->cache->remove($this->getSourcePath($file));
-	}
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * @param string $source
-	 * @param string $target
-	 */
-	public function move($source, $target) {
-		$this->cache->move($this->getSourcePath($source), $this->getSourcePath($target));
-	}
-
-	/**
-	 * remove all entries for files that are stored on the storage from the cache
-	 */
-	public function clear() {
-		$this->cache->remove($this->root);
-	}
-
-	/**
-	 * @param string $file
-	 *
-	 * @return int Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE
-	 */
-	public function getStatus($file) {
-		return $this->cache->getStatus($this->getSourcePath($file));
-	}
-
-	private function formatSearchResults($results) {
-		$results = array_filter($results, array($this, 'filterCacheEntry'));
-		$results = array_values($results);
-		return array_map(array($this, 'formatCacheEntry'), $results);
-	}
-
-	/**
-	 * search for files matching $pattern
-	 *
-	 * @param string $pattern
-	 * @return array an array of file data
-	 */
-	public function search($pattern) {
-		$results = $this->cache->search($pattern);
-		return $this->formatSearchResults($results);
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype
-	 * @return array
-	 */
-	public function searchByMime($mimetype) {
-		$results = $this->cache->searchByMime($mimetype);
-		return $this->formatSearchResults($results);
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return array
-	 */
-	public function searchByTag($tag, $userId) {
-		$results = $this->cache->searchByTag($tag, $userId);
-		return $this->formatSearchResults($results);
-	}
-
-	/**
-	 * update the folder size and the size of all parent folders
-	 *
-	 * @param string|boolean $path
-	 * @param array $data (optional) meta data of the folder
-	 */
-	public function correctFolderSize($path, $data = null) {
-		$this->cache->correctFolderSize($this->getSourcePath($path), $data);
-	}
-
-	/**
-	 * get the size of a folder and set it in the cache
-	 *
-	 * @param string $path
-	 * @param array $entry (optional) meta data of the folder
-	 * @return int
-	 */
-	public function calculateFolderSize($path, $entry = null) {
-		return $this->cache->calculateFolderSize($this->getSourcePath($path), $entry);
-	}
-
-	/**
-	 * get all file ids on the files on the storage
-	 *
-	 * @return int[]
-	 */
-	public function getAll() {
-		// not supported
-		return array();
-	}
-
-	/**
-	 * find a folder in the cache which has not been fully scanned
-	 *
-	 * If multiply incomplete folders are in the cache, the one with the highest id will be returned,
-	 * use the one with the highest id gives the best result with the background scanner, since that is most
-	 * likely the folder where we stopped scanning previously
-	 *
-	 * @return string|bool the path of the folder or false when no folder matched
-	 */
-	public function getIncomplete() {
-		// not supported
-		return false;
-	}
-
-	/**
-	 * get the path of a file on this storage by it's id
-	 *
-	 * @param int $id
-	 * @return string|null
-	 */
-	public function getPathById($id) {
-		$path = $this->cache->getPathById($id);
-		return $this->getJailedPath($path);
-	}
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * Note that this should make sure the entries are removed from the source cache
-	 *
-	 * @param \OCP\Files\Cache\ICache $sourceCache
-	 * @param string $sourcePath
-	 * @param string $targetPath
-	 */
-	public function moveFromCache(\OCP\Files\Cache\ICache $sourceCache, $sourcePath, $targetPath) {
-		if ($sourceCache === $this) {
-			return $this->move($sourcePath, $targetPath);
-		}
-		return $this->cache->moveFromCache($sourceCache, $sourcePath, $targetPath);
-	}
-}
diff --git a/lib/private/files/cache/wrapper/cachepermissionsmask.php b/lib/private/files/cache/wrapper/cachepermissionsmask.php
deleted file mode 100644
index b3a7bcb3a73..00000000000
--- a/lib/private/files/cache/wrapper/cachepermissionsmask.php
+++ /dev/null
@@ -1,46 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache\Wrapper;
-
-class CachePermissionsMask extends CacheWrapper {
-	/**
-	 * @var int
-	 */
-	protected $mask;
-
-	/**
-	 * @param \OCP\Files\Cache\ICache $cache
-	 * @param int $mask
-	 */
-	public function __construct($cache, $mask) {
-		parent::__construct($cache);
-		$this->mask = $mask;
-	}
-
-	protected function formatCacheEntry($entry) {
-		if (isset($entry['permissions'])) {
-			$entry['permissions'] &= $this->mask;
-		}
-		return $entry;
-	}
-}
diff --git a/lib/private/files/cache/wrapper/cachewrapper.php b/lib/private/files/cache/wrapper/cachewrapper.php
deleted file mode 100644
index 8c77e3c340e..00000000000
--- a/lib/private/files/cache/wrapper/cachewrapper.php
+++ /dev/null
@@ -1,309 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Cache\Wrapper;
-
-use OC\Files\Cache\Cache;
-use OCP\Files\Cache\ICacheEntry;
-use OCP\Files\Cache\ICache;
-
-class CacheWrapper extends Cache {
-	/**
-	 * @var \OCP\Files\Cache\ICache
-	 */
-	protected $cache;
-
-	/**
-	 * @param \OCP\Files\Cache\ICache $cache
-	 */
-	public function __construct($cache) {
-		$this->cache = $cache;
-	}
-
-	/**
-	 * Make it easy for wrappers to modify every returned cache entry
-	 *
-	 * @param ICacheEntry $entry
-	 * @return ICacheEntry
-	 */
-	protected function formatCacheEntry($entry) {
-		return $entry;
-	}
-
-	/**
-	 * get the stored metadata of a file or folder
-	 *
-	 * @param string|int $file
-	 * @return ICacheEntry|false
-	 */
-	public function get($file) {
-		$result = $this->cache->get($file);
-		if ($result) {
-			$result = $this->formatCacheEntry($result);
-		}
-		return $result;
-	}
-
-	/**
-	 * get the metadata of all files stored in $folder
-	 *
-	 * @param string $folder
-	 * @return ICacheEntry[]
-	 */
-	public function getFolderContents($folder) {
-		// can't do a simple $this->cache->.... call here since getFolderContentsById needs to be called on this
-		// and not the wrapped cache
-		$fileId = $this->getId($folder);
-		return $this->getFolderContentsById($fileId);
-	}
-
-	/**
-	 * get the metadata of all files stored in $folder
-	 *
-	 * @param int $fileId the file id of the folder
-	 * @return array
-	 */
-	public function getFolderContentsById($fileId) {
-		$results = $this->cache->getFolderContentsById($fileId);
-		return array_map(array($this, 'formatCacheEntry'), $results);
-	}
-
-	/**
-	 * insert or update meta data for a file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	public function put($file, array $data) {
-		if (($id = $this->getId($file)) > -1) {
-			$this->update($id, $data);
-			return $id;
-		} else {
-			return $this->insert($file, $data);
-		}
-	}
-
-	/**
-	 * insert meta data for a new file or folder
-	 *
-	 * @param string $file
-	 * @param array $data
-	 *
-	 * @return int file id
-	 * @throws \RuntimeException
-	 */
-	public function insert($file, array $data) {
-		return $this->cache->insert($file, $data);
-	}
-
-	/**
-	 * update the metadata in the cache
-	 *
-	 * @param int $id
-	 * @param array $data
-	 */
-	public function update($id, array $data) {
-		$this->cache->update($id, $data);
-	}
-
-	/**
-	 * get the file id for a file
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getId($file) {
-		return $this->cache->getId($file);
-	}
-
-	/**
-	 * get the id of the parent folder of a file
-	 *
-	 * @param string $file
-	 * @return int
-	 */
-	public function getParentId($file) {
-		return $this->cache->getParentId($file);
-	}
-
-	/**
-	 * check if a file is available in the cache
-	 *
-	 * @param string $file
-	 * @return bool
-	 */
-	public function inCache($file) {
-		return $this->cache->inCache($file);
-	}
-
-	/**
-	 * remove a file or folder from the cache
-	 *
-	 * @param string $file
-	 */
-	public function remove($file) {
-		$this->cache->remove($file);
-	}
-
-	/**
-	 * Move a file or folder in the cache
-	 *
-	 * @param string $source
-	 * @param string $target
-	 */
-	public function move($source, $target) {
-		$this->cache->move($source, $target);
-	}
-
-	public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
-		$this->cache->moveFromCache($sourceCache, $sourcePath, $targetPath);
-	}
-
-	/**
-	 * remove all entries for files that are stored on the storage from the cache
-	 */
-	public function clear() {
-		$this->cache->clear();
-	}
-
-	/**
-	 * @param string $file
-	 *
-	 * @return int Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE
-	 */
-	public function getStatus($file) {
-		return $this->cache->getStatus($file);
-	}
-
-	/**
-	 * search for files matching $pattern
-	 *
-	 * @param string $pattern
-	 * @return ICacheEntry[] an array of file data
-	 */
-	public function search($pattern) {
-		$results = $this->cache->search($pattern);
-		return array_map(array($this, 'formatCacheEntry'), $results);
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype
-	 * @return ICacheEntry[]
-	 */
-	public function searchByMime($mimetype) {
-		$results = $this->cache->searchByMime($mimetype);
-		return array_map(array($this, 'formatCacheEntry'), $results);
-	}
-
-	/**
-	 * search for files by tag
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return ICacheEntry[] file data
-	 */
-	public function searchByTag($tag, $userId) {
-		$results = $this->cache->searchByTag($tag, $userId);
-		return array_map(array($this, 'formatCacheEntry'), $results);
-	}
-
-	/**
-	 * update the folder size and the size of all parent folders
-	 *
-	 * @param string|boolean $path
-	 * @param array $data (optional) meta data of the folder
-	 */
-	public function correctFolderSize($path, $data = null) {
-		$this->cache->correctFolderSize($path, $data);
-	}
-
-	/**
-	 * get the size of a folder and set it in the cache
-	 *
-	 * @param string $path
-	 * @param array $entry (optional) meta data of the folder
-	 * @return int
-	 */
-	public function calculateFolderSize($path, $entry = null) {
-		return $this->cache->calculateFolderSize($path, $entry);
-	}
-
-	/**
-	 * get all file ids on the files on the storage
-	 *
-	 * @return int[]
-	 */
-	public function getAll() {
-		return $this->cache->getAll();
-	}
-
-	/**
-	 * find a folder in the cache which has not been fully scanned
-	 *
-	 * If multiple incomplete folders are in the cache, the one with the highest id will be returned,
-	 * use the one with the highest id gives the best result with the background scanner, since that is most
-	 * likely the folder where we stopped scanning previously
-	 *
-	 * @return string|bool the path of the folder or false when no folder matched
-	 */
-	public function getIncomplete() {
-		return $this->cache->getIncomplete();
-	}
-
-	/**
-	 * get the path of a file on this storage by it's id
-	 *
-	 * @param int $id
-	 * @return string|null
-	 */
-	public function getPathById($id) {
-		return $this->cache->getPathById($id);
-	}
-
-	/**
-	 * Returns the numeric storage id
-	 *
-	 * @return int
-	 */
-	public function getNumericStorageId() {
-		return $this->cache->getNumericStorageId();
-	}
-
-	/**
-	 * get the storage id of the storage for a file and the internal path of the file
-	 * unlike getPathById this does not limit the search to files on this storage and
-	 * instead does a global search in the cache table
-	 *
-	 * @param int $id
-	 * @return array first element holding the storage id, second the path
-	 */
-	static public function getById($id) {
-		return parent::getById($id);
-	}
-}
diff --git a/lib/private/files/config/cachedmountinfo.php b/lib/private/files/config/cachedmountinfo.php
deleted file mode 100644
index ce75cb66896..00000000000
--- a/lib/private/files/config/cachedmountinfo.php
+++ /dev/null
@@ -1,107 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Config;
-
-use OC\Files\Filesystem;
-use OCP\Files\Config\ICachedMountInfo;
-use OCP\Files\Node;
-use OCP\IUser;
-
-class CachedMountInfo implements ICachedMountInfo {
-	/**
-	 * @var IUser
-	 */
-	protected $user;
-
-	/**
-	 * @var int
-	 */
-	protected $storageId;
-
-	/**
-	 * @var int
-	 */
-	protected $rootId;
-
-	/**
-	 * @var string
-	 */
-	protected $mountPoint;
-
-	/**
-	 * CachedMountInfo constructor.
-	 *
-	 * @param IUser $user
-	 * @param int $storageId
-	 * @param int $rootId
-	 * @param string $mountPoint
-	 */
-	public function __construct(IUser $user, $storageId, $rootId, $mountPoint) {
-		$this->user = $user;
-		$this->storageId = $storageId;
-		$this->rootId = $rootId;
-		$this->mountPoint = $mountPoint;
-	}
-
-	/**
-	 * @return IUser
-	 */
-	public function getUser() {
-		return $this->user;
-	}
-
-	/**
-	 * @return int the numeric storage id of the mount
-	 */
-	public function getStorageId() {
-		return $this->storageId;
-	}
-
-	/**
-	 * @return int the fileid of the root of the mount
-	 */
-	public function getRootId() {
-		return $this->rootId;
-	}
-
-	/**
-	 * @return Node the root node of the mount
-	 */
-	public function getMountPointNode() {
-		// TODO injection etc
-		Filesystem::initMountPoints($this->getUser()->getUID());
-		$userNode = \OC::$server->getUserFolder($this->getUser()->getUID());
-		$nodes = $userNode->getById($this->getRootId());
-		if (count($nodes) > 0) {
-			return $nodes[0];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @return string the mount point of the mount for the user
-	 */
-	public function getMountPoint() {
-		return $this->mountPoint;
-	}
-}
diff --git a/lib/private/files/config/lazystoragemountinfo.php b/lib/private/files/config/lazystoragemountinfo.php
deleted file mode 100644
index 654c5b2b23e..00000000000
--- a/lib/private/files/config/lazystoragemountinfo.php
+++ /dev/null
@@ -1,74 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Config;
-
-use OC\Files\Filesystem;
-use OCP\Files\Config\ICachedMountInfo;
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\Node;
-use OCP\IUser;
-
-class LazyStorageMountInfo extends CachedMountInfo {
-	/** @var IMountPoint  */
-	private $mount;
-
-	/**
-	 * CachedMountInfo constructor.
-	 *
-	 * @param IUser $user
-	 * @param IMountPoint $mount
-	 */
-	public function __construct(IUser $user, IMountPoint $mount) {
-		$this->user = $user;
-		$this->mount = $mount;
-	}
-
-	/**
-	 * @return int the numeric storage id of the mount
-	 */
-	public function getStorageId() {
-		if (!$this->storageId) {
-			$this->storageId = $this->mount->getStorage()->getStorageCache()->getNumericId();
-		}
-		return parent::getStorageId();
-	}
-
-	/**
-	 * @return int the fileid of the root of the mount
-	 */
-	public function getRootId() {
-		if (!$this->rootId) {
-			$this->rootId = $this->mount->getStorageRootId();
-		}
-		return parent::getRootId();
-	}
-
-	/**
-	 * @return string the mount point of the mount for the user
-	 */
-	public function getMountPoint() {
-		if (!$this->mountPoint) {
-			$this->mountPoint = $this->mount->getMountPoint();
-		}
-		return parent::getMountPoint();
-	}
-}
diff --git a/lib/private/files/config/mountprovidercollection.php b/lib/private/files/config/mountprovidercollection.php
deleted file mode 100644
index 499fa576fbc..00000000000
--- a/lib/private/files/config/mountprovidercollection.php
+++ /dev/null
@@ -1,108 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Config;
-
-use OC\Hooks\Emitter;
-use OC\Hooks\EmitterTrait;
-use OCP\Files\Config\IMountProviderCollection;
-use OCP\Files\Config\IMountProvider;
-use OCP\Files\Config\IUserMountCache;
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\Storage\IStorageFactory;
-use OCP\IUser;
-
-class MountProviderCollection implements IMountProviderCollection, Emitter {
-	use EmitterTrait;
-
-	/**
-	 * @var \OCP\Files\Config\IMountProvider[]
-	 */
-	private $providers = array();
-
-	/**
-	 * @var \OCP\Files\Storage\IStorageFactory
-	 */
-	private $loader;
-
-	/**
-	 * @var \OCP\Files\Config\IUserMountCache
-	 */
-	private $mountCache;
-
-	/**
-	 * @param \OCP\Files\Storage\IStorageFactory $loader
-	 * @param IUserMountCache $mountCache
-	 */
-	public function __construct(IStorageFactory $loader, IUserMountCache $mountCache) {
-		$this->loader = $loader;
-		$this->mountCache = $mountCache;
-	}
-
-	/**
-	 * Get all configured mount points for the user
-	 *
-	 * @param \OCP\IUser $user
-	 * @return \OCP\Files\Mount\IMountPoint[]
-	 */
-	public function getMountsForUser(IUser $user) {
-		$loader = $this->loader;
-		$mounts = array_map(function (IMountProvider $provider) use ($user, $loader) {
-			return $provider->getMountsForUser($user, $loader);
-		}, $this->providers);
-		$mounts = array_filter($mounts, function ($result) {
-			return is_array($result);
-		});
-		return array_reduce($mounts, function (array $mounts, array $providerMounts) {
-			return array_merge($mounts, $providerMounts);
-		}, array());
-	}
-
-	/**
-	 * Add a provider for mount points
-	 *
-	 * @param \OCP\Files\Config\IMountProvider $provider
-	 */
-	public function registerProvider(IMountProvider $provider) {
-		$this->providers[] = $provider;
-		$this->emit('\OC\Files\Config', 'registerMountProvider', [$provider]);
-	}
-
-	/**
-	 * Cache mounts for user
-	 *
-	 * @param IUser $user
-	 * @param IMountPoint[] $mountPoints
-	 */
-	public function registerMounts(IUser $user, array $mountPoints) {
-		$this->mountCache->registerMounts($user, $mountPoints);
-	}
-
-	/**
-	 * Get the mount cache which can be used to search for mounts without setting up the filesystem
-	 *
-	 * @return IUserMountCache
-	 */
-	public function getMountCache() {
-		return $this->mountCache;
-	}
-}
diff --git a/lib/private/files/config/usermountcache.php b/lib/private/files/config/usermountcache.php
deleted file mode 100644
index 05ca146f4be..00000000000
--- a/lib/private/files/config/usermountcache.php
+++ /dev/null
@@ -1,290 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Config;
-
-use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
-use OC\Files\Filesystem;
-use OCA\Files_Sharing\SharedMount;
-use OCP\DB\QueryBuilder\IQueryBuilder;
-use OCP\Files\Config\ICachedMountInfo;
-use OCP\Files\Config\IUserMountCache;
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\NotFoundException;
-use OCP\ICache;
-use OCP\IDBConnection;
-use OCP\ILogger;
-use OCP\IUser;
-use OCP\IUserManager;
-
-/**
- * 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 $userManager;
-
-	/** @var ICachedMountInfo[][] [$userId => [$cachedMountInfo, ....], ...] */
-	private $mountsForUsers = [];
-
-	/**
-	 * @var ILogger
-	 */
-	private $logger;
-
-	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;
-	}
-
-	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);
-
-		$changedMounts = array_uintersect($newMounts, $cachedMounts, function (ICachedMountInfo $mount1, ICachedMountInfo $mount2) {
-			// filter mounts with the same root id and different mountpoints
-			if ($mount1->getRootId() !== $mount2->getRootId()) {
-				return -1;
-			}
-			return ($mount1->getMountPoint() !== $mount2->getMountPoint()) ? 0 : 1;
-		});
-
-		foreach ($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) {
-			$this->setMountPoint($mount);
-		}
-	}
-
-	private function addToCache(ICachedMountInfo $mount) {
-		$this->connection->insertIfNotExist('*PREFIX*mounts', [
-			'storage_id' => $mount->getStorageId(),
-			'root_id' => $mount->getRootId(),
-			'user_id' => $mount->getUser()->getUID(),
-			'mount_point' => $mount->getMountPoint()
-		], ['root_id', 'user_id']);
-	}
-
-	private function setMountPoint(ICachedMountInfo $mount) {
-		$builder = $this->connection->getQueryBuilder();
-
-		$query = $builder->update('mounts')
-			->set('mount_point', $builder->createNamedParameter($mount->getMountPoint()))
-			->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']);
-		return new CachedMountInfo($user, (int)$row['storage_id'], (int)$row['root_id'], $row['mount_point']);
-	}
-
-	/**
-	 * @param IUser $user
-	 * @return ICachedMountInfo[]
-	 */
-	public function getMountsForUser(IUser $user) {
-		if (!isset($this->mountsForUsers[$user->getUID()])) {
-			$builder = $this->connection->getQueryBuilder();
-			$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point')
-				->from('mounts')
-				->where($builder->expr()->eq('user_id', $builder->createPositionalParameter($user->getUID())));
-
-			$rows = $query->execute()->fetchAll();
-
-			$this->mountsForUsers[$user->getUID()] = array_map([$this, 'dbRowToMountInfo'], $rows);
-		}
-		return $this->mountsForUsers[$user->getUID()];
-	}
-
-	/**
-	 * @param int $numericStorageId
-	 * @return CachedMountInfo[]
-	 */
-	public function getMountsForStorageId($numericStorageId) {
-		$builder = $this->connection->getQueryBuilder();
-		$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point')
-			->from('mounts')
-			->where($builder->expr()->eq('storage_id', $builder->createPositionalParameter($numericStorageId, IQueryBuilder::PARAM_INT)));
-
-		$rows = $query->execute()->fetchAll();
-
-		return array_map([$this, 'dbRowToMountInfo'], $rows);
-	}
-
-	/**
-	 * @param int $rootFileId
-	 * @return CachedMountInfo[]
-	 */
-	public function getMountsForRootId($rootFileId) {
-		$builder = $this->connection->getQueryBuilder();
-		$query = $builder->select('storage_id', 'root_id', 'user_id', 'mount_point')
-			->from('mounts')
-			->where($builder->expr()->eq('root_id', $builder->createPositionalParameter($rootFileId, IQueryBuilder::PARAM_INT)));
-
-		$rows = $query->execute()->fetchAll();
-
-		return array_map([$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 = $builder->select('storage', 'path')
-				->from('filecache')
-				->where($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']
-				];
-			} else {
-				throw new NotFoundException('File with id "' . $fileId . '" not found');
-			}
-		}
-		return $this->cacheInfoCache[$fileId];
-	}
-
-	/**
-	 * @param int $fileId
-	 * @return ICachedMountInfo[]
-	 * @since 9.0.0
-	 */
-	public function getMountsForFileId($fileId) {
-		try {
-			list($storageId, $internalPath) = $this->getCacheInfoFromFileId($fileId);
-		} catch (NotFoundException $e) {
-			return [];
-		}
-		$mountsForStorage = $this->getMountsForStorageId($storageId);
-
-		// 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;
-			}
-			try {
-				list(, $internalMountPath) = $this->getCacheInfoFromFileId($mount->getRootId());
-			} catch (NotFoundException $e) {
-				return false;
-			}
-
-			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();
-	}
-}
diff --git a/lib/private/files/config/usermountcachelistener.php b/lib/private/files/config/usermountcachelistener.php
deleted file mode 100644
index 99673cf6285..00000000000
--- a/lib/private/files/config/usermountcachelistener.php
+++ /dev/null
@@ -1,48 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Config;
-
-use OC\User\Manager;
-use OCP\Files\Config\IUserMountCache;
-
-/**
- * Listen to hooks and update the mount cache as needed
- */
-class UserMountCacheListener {
-	/**
-	 * @var IUserMountCache
-	 */
-	private $userMountCache;
-
-	/**
-	 * UserMountCacheListener constructor.
-	 *
-	 * @param IUserMountCache $userMountCache
-	 */
-	public function __construct(IUserMountCache $userMountCache) {
-		$this->userMountCache = $userMountCache;
-	}
-
-	public function listen(Manager $manager) {
-		$manager->listen('\OC\User', 'postDelete', [$this->userMountCache, 'removeUserMounts']);
-	}
-}
diff --git a/lib/private/files/fileinfo.php b/lib/private/files/fileinfo.php
deleted file mode 100644
index 5f32ad34bb3..00000000000
--- a/lib/private/files/fileinfo.php
+++ /dev/null
@@ -1,346 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author tbartenstein <tbartenstein@users.noreply.github.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files;
-
-use OCP\Files\Cache\ICacheEntry;
-use OCP\IUser;
-
-class FileInfo implements \OCP\Files\FileInfo, \ArrayAccess {
-	/**
-	 * @var array $data
-	 */
-	private $data;
-
-	/**
-	 * @var string $path
-	 */
-	private $path;
-
-	/**
-	 * @var \OC\Files\Storage\Storage $storage
-	 */
-	private $storage;
-
-	/**
-	 * @var string $internalPath
-	 */
-	private $internalPath;
-
-	/**
-	 * @var \OCP\Files\Mount\IMountPoint
-	 */
-	private $mount;
-
-	/**
-	 * @var IUser
-	 */
-	private $owner;
-
-	/**
-	 * @var string[]
-	 */
-	private $childEtags = [];
-
-	/**
-	 * @param string|boolean $path
-	 * @param Storage\Storage $storage
-	 * @param string $internalPath
-	 * @param array|ICacheEntry $data
-	 * @param \OCP\Files\Mount\IMountPoint $mount
-	 * @param \OCP\IUser|null $owner
-	 */
-	public function __construct($path, $storage, $internalPath, $data, $mount, $owner= null) {
-		$this->path = $path;
-		$this->storage = $storage;
-		$this->internalPath = $internalPath;
-		$this->data = $data;
-		$this->mount = $mount;
-		$this->owner = $owner;
-	}
-
-	public function offsetSet($offset, $value) {
-		$this->data[$offset] = $value;
-	}
-
-	public function offsetExists($offset) {
-		return isset($this->data[$offset]);
-	}
-
-	public function offsetUnset($offset) {
-		unset($this->data[$offset]);
-	}
-
-	public function offsetGet($offset) {
-		if ($offset === 'type') {
-			return $this->getType();
-		} else if ($offset === 'etag') {
-			return $this->getEtag();
-		} elseif ($offset === 'permissions') {
-			return $this->getPermissions();
-		} elseif (isset($this->data[$offset])) {
-			return $this->data[$offset];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getPath() {
-		return $this->path;
-	}
-
-	/**
-	 * @return \OCP\Files\Storage
-	 */
-	public function getStorage() {
-		return $this->storage;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getInternalPath() {
-		return $this->internalPath;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getId() {
-		return $this->data['fileid'];
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getMimetype() {
-		return $this->data['mimetype'];
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getMimePart() {
-		return $this->data['mimepart'];
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getName() {
-		return basename($this->getPath());
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getEtag() {
-		if (count($this->childEtags) > 0) {
-			$combinedEtag = $this->data['etag'] . '::' . implode('::', $this->childEtags);
-			return md5($combinedEtag);
-		} else {
-			return $this->data['etag'];
-		}
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getSize() {
-		return isset($this->data['size']) ? $this->data['size'] : 0;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getMTime() {
-		return $this->data['mtime'];
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isEncrypted() {
-		return $this->data['encrypted'];
-	}
-
-	/**
-	 * Return the currently version used for the HMAC in the encryption app
-	 *
-	 * @return int
-	 */
-	public function getEncryptedVersion() {
-		return isset($this->data['encryptedVersion']) ? (int) $this->data['encryptedVersion'] : 1;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getPermissions() {
-		$perms = $this->data['permissions'];
-		if (\OCP\Util::isSharingDisabledForUser() || ($this->isShared() && !\OC\Share\Share::isResharingAllowed())) {
-			$perms = $perms & ~\OCP\Constants::PERMISSION_SHARE;
-		}
-		return $perms;
-	}
-
-	/**
-	 * @return \OCP\Files\FileInfo::TYPE_FILE|\OCP\Files\FileInfo::TYPE_FOLDER
-	 */
-	public function getType() {
-		if (!isset($this->data['type'])) {
-			$this->data['type'] = ($this->getMimetype() === 'httpd/unix-directory') ? self::TYPE_FOLDER : self::TYPE_FILE;
-		}
-		return $this->data['type'];
-	}
-
-	public function getData() {
-		return $this->data;
-	}
-
-	/**
-	 * @param int $permissions
-	 * @return bool
-	 */
-	protected function checkPermissions($permissions) {
-		return ($this->getPermissions() & $permissions) === $permissions;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isReadable() {
-		return $this->checkPermissions(\OCP\Constants::PERMISSION_READ);
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isUpdateable() {
-		return $this->checkPermissions(\OCP\Constants::PERMISSION_UPDATE);
-	}
-
-	/**
-	 * Check whether new files or folders can be created inside this folder
-	 *
-	 * @return bool
-	 */
-	public function isCreatable() {
-		return $this->checkPermissions(\OCP\Constants::PERMISSION_CREATE);
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isDeletable() {
-		return $this->checkPermissions(\OCP\Constants::PERMISSION_DELETE);
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isShareable() {
-		return $this->checkPermissions(\OCP\Constants::PERMISSION_SHARE);
-	}
-
-	/**
-	 * Check if a file or folder is shared
-	 *
-	 * @return bool
-	 */
-	public function isShared() {
-		$sid = $this->getStorage()->getId();
-		if (!is_null($sid)) {
-			$sid = explode(':', $sid);
-			return ($sid[0] === 'shared');
-		}
-
-		return false;
-	}
-
-	public function isMounted() {
-		$sid = $this->getStorage()->getId();
-		if (!is_null($sid)) {
-			$sid = explode(':', $sid);
-			return ($sid[0] !== 'home' and $sid[0] !== 'shared');
-		}
-
-		return false;
-	}
-
-	/**
-	 * Get the mountpoint the file belongs to
-	 *
-	 * @return \OCP\Files\Mount\IMountPoint
-	 */
-	public function getMountPoint() {
-		return $this->mount;
-	}
-
-	/**
-	 * Get the owner of the file
-	 *
-	 * @return \OCP\IUser
-	 */
-	public function getOwner() {
-		return $this->owner;
-	}
-
-	/**
-	 * Add a cache entry which is the child of this folder
-	 *
-	 * Sets the size, etag and size to for cross-storage childs
-	 *
-	 * @param array $data cache entry for the child
-	 * @param string $entryPath full path of the child entry
-	 */
-	public function addSubEntry($data, $entryPath) {
-		$this->data['size'] += isset($data['size']) ? $data['size'] : 0;
-		if (isset($data['mtime'])) {
-			$this->data['mtime'] = max($this->data['mtime'], $data['mtime']);
-		}
-		if (isset($data['etag'])) {
-			// prefix the etag with the relative path of the subentry to propagate etag on mount moves
-			$relativeEntryPath = substr($entryPath, strlen($this->getPath()));
-			// attach the permissions to propagate etag on permision changes of submounts
-			$permissions = isset($data['permissions']) ? $data['permissions'] : 0;
-			$this->childEtags[] = $relativeEntryPath . '/' . $data['etag'] . $permissions;
-		}
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getChecksum() {
-		return $this->data['checksum'];
-	}
-}
diff --git a/lib/private/files/filesystem.php b/lib/private/files/filesystem.php
deleted file mode 100644
index 7283c815c97..00000000000
--- a/lib/private/files/filesystem.php
+++ /dev/null
@@ -1,928 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Christopher Schäpers <kondou@ts.unde.re>
- * @author Florin Peter <github@florin-peter.de>
- * @author Georg Ehrke <georg@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Sam Tuke <mail@samtuke.com>
- * @author Stephan Peijnik <speijnik@anexia-it.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-/**
- * Class for abstraction of filesystem functions
- * This class won't call any filesystem functions for itself but will pass them to the correct OC_Filestorage object
- * this class should also handle all the file permission related stuff
- *
- * Hooks provided:
- *   read(path)
- *   write(path, &run)
- *   post_write(path)
- *   create(path, &run) (when a file is created, both create and write will be emitted in that order)
- *   post_create(path)
- *   delete(path, &run)
- *   post_delete(path)
- *   rename(oldpath,newpath, &run)
- *   post_rename(oldpath,newpath)
- *   copy(oldpath,newpath, &run) (if the newpath doesn't exists yes, copy, create and write will be emitted in that order)
- *   post_rename(oldpath,newpath)
- *   post_initMountPoints(user, user_dir)
- *
- *   the &run parameter can be set to false to prevent the operation from occurring
- */
-
-namespace OC\Files;
-
-use OC\Files\Config\MountProviderCollection;
-use OC\Files\Mount\MountPoint;
-use OC\Files\Storage\StorageFactory;
-use OCP\Files\Config\IMountProvider;
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\NotFoundException;
-use OCP\IUserManager;
-
-class Filesystem {
-
-	/**
-	 * @var Mount\Manager $mounts
-	 */
-	private static $mounts;
-
-	public static $loaded = false;
-	/**
-	 * @var \OC\Files\View $defaultInstance
-	 */
-	static private $defaultInstance;
-
-	static private $usersSetup = array();
-
-	static private $normalizedPathCache = array();
-
-	static private $listeningForProviders = false;
-
-	/**
-	 * classname which used for hooks handling
-	 * used as signalclass in OC_Hooks::emit()
-	 */
-	const CLASSNAME = 'OC_Filesystem';
-
-	/**
-	 * signalname emitted before file renaming
-	 *
-	 * @param string $oldpath
-	 * @param string $newpath
-	 */
-	const signal_rename = 'rename';
-
-	/**
-	 * signal emitted after file renaming
-	 *
-	 * @param string $oldpath
-	 * @param string $newpath
-	 */
-	const signal_post_rename = 'post_rename';
-
-	/**
-	 * signal emitted before file/dir creation
-	 *
-	 * @param string $path
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_create = 'create';
-
-	/**
-	 * signal emitted after file/dir creation
-	 *
-	 * @param string $path
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_post_create = 'post_create';
-
-	/**
-	 * signal emits before file/dir copy
-	 *
-	 * @param string $oldpath
-	 * @param string $newpath
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_copy = 'copy';
-
-	/**
-	 * signal emits after file/dir copy
-	 *
-	 * @param string $oldpath
-	 * @param string $newpath
-	 */
-	const signal_post_copy = 'post_copy';
-
-	/**
-	 * signal emits before file/dir save
-	 *
-	 * @param string $path
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_write = 'write';
-
-	/**
-	 * signal emits after file/dir save
-	 *
-	 * @param string $path
-	 */
-	const signal_post_write = 'post_write';
-
-	/**
-	 * signal emitted before file/dir update
-	 *
-	 * @param string $path
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_update = 'update';
-
-	/**
-	 * signal emitted after file/dir update
-	 *
-	 * @param string $path
-	 * @param bool $run changing this flag to false in hook handler will cancel event
-	 */
-	const signal_post_update = 'post_update';
-
-	/**
-	 * signal emits when reading file/dir
-	 *
-	 * @param string $path
-	 */
-	const signal_read = 'read';
-
-	/**
-	 * signal emits when removing file/dir
-	 *
-	 * @param string $path
-	 */
-	const signal_delete = 'delete';
-
-	/**
-	 * parameters definitions for signals
-	 */
-	const signal_param_path = 'path';
-	const signal_param_oldpath = 'oldpath';
-	const signal_param_newpath = 'newpath';
-
-	/**
-	 * run - changing this flag to false in hook handler will cancel event
-	 */
-	const signal_param_run = 'run';
-
-	const signal_create_mount = 'create_mount';
-	const signal_delete_mount = 'delete_mount';
-	const signal_param_mount_type = 'mounttype';
-	const signal_param_users = 'users';
-
-	/**
-	 * @var \OC\Files\Storage\StorageFactory $loader
-	 */
-	private static $loader;
-
-	/**
-	 * @param string $wrapperName
-	 * @param callable $wrapper
-	 * @param int $priority
-	 */
-	public static function addStorageWrapper($wrapperName, $wrapper, $priority = 50) {
-		$mounts = self::getMountManager()->getAll();
-		if (!self::getLoader()->addStorageWrapper($wrapperName, $wrapper, $priority, $mounts)) {
-			// do not re-wrap if storage with this name already existed
-			return;
-		}
-	}
-
-	/**
-	 * Returns the storage factory
-	 *
-	 * @return \OCP\Files\Storage\IStorageFactory
-	 */
-	public static function getLoader() {
-		if (!self::$loader) {
-			self::$loader = new StorageFactory();
-		}
-		return self::$loader;
-	}
-
-	/**
-	 * Returns the mount manager
-	 *
-	 * @return \OC\Files\Mount\Manager
-	 */
-	public static function getMountManager($user = '') {
-		if (!self::$mounts) {
-			\OC_Util::setupFS($user);
-		}
-		return self::$mounts;
-	}
-
-	/**
-	 * get the mountpoint of the storage object for a path
-	 * ( note: because a storage is not always mounted inside the fakeroot, the
-	 * returned mountpoint is relative to the absolute root of the filesystem
-	 * and doesn't take the chroot into account )
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	static public function getMountPoint($path) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		$mount = self::$mounts->find($path);
-		if ($mount) {
-			return $mount->getMountPoint();
-		} else {
-			return '';
-		}
-	}
-
-	/**
-	 * get a list of all mount points in a directory
-	 *
-	 * @param string $path
-	 * @return string[]
-	 */
-	static public function getMountPoints($path) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		$result = array();
-		$mounts = self::$mounts->findIn($path);
-		foreach ($mounts as $mount) {
-			$result[] = $mount->getMountPoint();
-		}
-		return $result;
-	}
-
-	/**
-	 * get the storage mounted at $mountPoint
-	 *
-	 * @param string $mountPoint
-	 * @return \OC\Files\Storage\Storage
-	 */
-	public static function getStorage($mountPoint) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		$mount = self::$mounts->find($mountPoint);
-		return $mount->getStorage();
-	}
-
-	/**
-	 * @param string $id
-	 * @return Mount\MountPoint[]
-	 */
-	public static function getMountByStorageId($id) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		return self::$mounts->findByStorageId($id);
-	}
-
-	/**
-	 * @param int $id
-	 * @return Mount\MountPoint[]
-	 */
-	public static function getMountByNumericId($id) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		return self::$mounts->findByNumericId($id);
-	}
-
-	/**
-	 * resolve a path to a storage and internal path
-	 *
-	 * @param string $path
-	 * @return array an array consisting of the storage and the internal path
-	 */
-	static public function resolvePath($path) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		$mount = self::$mounts->find($path);
-		if ($mount) {
-			return array($mount->getStorage(), rtrim($mount->getInternalPath($path), '/'));
-		} else {
-			return array(null, null);
-		}
-	}
-
-	static public function init($user, $root) {
-		if (self::$defaultInstance) {
-			return false;
-		}
-		self::getLoader();
-		self::$defaultInstance = new View($root);
-
-		if (!self::$mounts) {
-			self::$mounts = \OC::$server->getMountManager();
-		}
-
-		//load custom mount config
-		self::initMountPoints($user);
-
-		self::$loaded = true;
-
-		return true;
-	}
-
-	static public function initMountManager() {
-		if (!self::$mounts) {
-			self::$mounts = \OC::$server->getMountManager();
-		}
-	}
-
-	/**
-	 * Initialize system and personal mount points for a user
-	 *
-	 * @param string $user
-	 * @throws \OC\User\NoUserException if the user is not available
-	 */
-	public static function initMountPoints($user = '') {
-		if ($user == '') {
-			$user = \OC_User::getUser();
-		}
-		if ($user === null || $user === false || $user === '') {
-			throw new \OC\User\NoUserException('Attempted to initialize mount points for null user and no user in session');
-		}
-		if (isset(self::$usersSetup[$user])) {
-			return;
-		}
-		$root = \OC_User::getHome($user);
-
-		$userManager = \OC::$server->getUserManager();
-		$userObject = $userManager->get($user);
-
-		if (is_null($userObject)) {
-			\OCP\Util::writeLog('files', ' Backends provided no user object for ' . $user, \OCP\Util::ERROR);
-			throw new \OC\User\NoUserException('Backends provided no user object for ' . $user);
-		}
-
-		self::$usersSetup[$user] = true;
-
-		$homeStorage = \OC::$server->getConfig()->getSystemValue('objectstore');
-		if (!empty($homeStorage)) {
-			// sanity checks
-			if (empty($homeStorage['class'])) {
-				\OCP\Util::writeLog('files', 'No class given for objectstore', \OCP\Util::ERROR);
-			}
-			if (!isset($homeStorage['arguments'])) {
-				$homeStorage['arguments'] = array();
-			}
-			// instantiate object store implementation
-			$homeStorage['arguments']['objectstore'] = new $homeStorage['class']($homeStorage['arguments']);
-			// mount with home object store implementation
-			$homeStorage['class'] = '\OC\Files\ObjectStore\HomeObjectStoreStorage';
-		} else {
-			$homeStorage = array(
-				//default home storage configuration:
-				'class' => '\OC\Files\Storage\Home',
-				'arguments' => array()
-			);
-		}
-		$homeStorage['arguments']['user'] = $userObject;
-
-		// check for legacy home id (<= 5.0.12)
-		if (\OC\Files\Cache\Storage::exists('local::' . $root . '/')) {
-			$homeStorage['arguments']['legacy'] = true;
-		}
-
-		$mount = new MountPoint($homeStorage['class'], '/' . $user, $homeStorage['arguments'], self::getLoader());
-		self::getMountManager()->addMount($mount);
-
-		$home = \OC\Files\Filesystem::getStorage($user);
-
-		self::mountCacheDir($user);
-
-		// Chance to mount for other storages
-		/** @var \OC\Files\Config\MountProviderCollection $mountConfigManager */
-		$mountConfigManager = \OC::$server->getMountProviderCollection();
-		if ($userObject) {
-			$mounts = $mountConfigManager->getMountsForUser($userObject);
-			array_walk($mounts, array(self::$mounts, 'addMount'));
-			$mounts[] = $mount;
-			$mountConfigManager->registerMounts($userObject, $mounts);
-		}
-
-		self::listenForNewMountProviders($mountConfigManager, $userManager);
-		\OC_Hook::emit('OC_Filesystem', 'post_initMountPoints', array('user' => $user, 'user_dir' => $root));
-	}
-
-	/**
-	 * Get mounts from mount providers that are registered after setup
-	 *
-	 * @param MountProviderCollection $mountConfigManager
-	 * @param IUserManager $userManager
-	 */
-	private static function listenForNewMountProviders(MountProviderCollection $mountConfigManager, IUserManager $userManager) {
-		if (!self::$listeningForProviders) {
-			self::$listeningForProviders = true;
-			$mountConfigManager->listen('\OC\Files\Config', 'registerMountProvider', function (IMountProvider $provider) use ($userManager) {
-				foreach (Filesystem::$usersSetup as $user => $setup) {
-					$userObject = $userManager->get($user);
-					if ($userObject) {
-						$mounts = $provider->getMountsForUser($userObject, Filesystem::getLoader());
-						array_walk($mounts, array(self::$mounts, 'addMount'));
-					}
-				}
-			});
-		}
-	}
-
-	/**
-	 * Mounts the cache directory
-	 *
-	 * @param string $user user name
-	 */
-	private static function mountCacheDir($user) {
-		$cacheBaseDir = \OC::$server->getConfig()->getSystemValue('cache_path', '');
-		if ($cacheBaseDir !== '') {
-			$cacheDir = rtrim($cacheBaseDir, '/') . '/' . $user;
-			if (!file_exists($cacheDir)) {
-				mkdir($cacheDir, 0770, true);
-			}
-			// mount external cache dir to "/$user/cache" mount point
-			self::mount('\OC\Files\Storage\Local', array('datadir' => $cacheDir), '/' . $user . '/cache');
-		}
-	}
-
-	/**
-	 * get the default filesystem view
-	 *
-	 * @return View
-	 */
-	static public function getView() {
-		return self::$defaultInstance;
-	}
-
-	/**
-	 * tear down the filesystem, removing all storage providers
-	 */
-	static public function tearDown() {
-		self::clearMounts();
-		self::$defaultInstance = null;
-	}
-
-	/**
-	 * get the relative path of the root data directory for the current user
-	 *
-	 * @return string
-	 *
-	 * Returns path like /admin/files
-	 */
-	static public function getRoot() {
-		if (!self::$defaultInstance) {
-			return null;
-		}
-		return self::$defaultInstance->getRoot();
-	}
-
-	/**
-	 * clear all mounts and storage backends
-	 */
-	public static function clearMounts() {
-		if (self::$mounts) {
-			self::$usersSetup = array();
-			self::$mounts->clear();
-		}
-	}
-
-	/**
-	 * mount an \OC\Files\Storage\Storage in our virtual filesystem
-	 *
-	 * @param \OC\Files\Storage\Storage|string $class
-	 * @param array $arguments
-	 * @param string $mountpoint
-	 */
-	static public function mount($class, $arguments, $mountpoint) {
-		if (!self::$mounts) {
-			\OC_Util::setupFS();
-		}
-		$mount = new Mount\MountPoint($class, $mountpoint, $arguments, self::getLoader());
-		self::$mounts->addMount($mount);
-	}
-
-	/**
-	 * return the path to a local version of the file
-	 * we need this because we can't know if a file is stored local or not from
-	 * outside the filestorage and for some purposes a local file is needed
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	static public function getLocalFile($path) {
-		return self::$defaultInstance->getLocalFile($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	static public function getLocalFolder($path) {
-		return self::$defaultInstance->getLocalFolder($path);
-	}
-
-	/**
-	 * return path to file which reflects one visible in browser
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	static public function getLocalPath($path) {
-		$datadir = \OC_User::getHome(\OC_User::getUser()) . '/files';
-		$newpath = $path;
-		if (strncmp($newpath, $datadir, strlen($datadir)) == 0) {
-			$newpath = substr($path, strlen($datadir));
-		}
-		return $newpath;
-	}
-
-	/**
-	 * check if the requested path is valid
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	static public function isValidPath($path) {
-		$path = self::normalizePath($path);
-		if (!$path || $path[0] !== '/') {
-			$path = '/' . $path;
-		}
-		if (strpos($path, '/../') !== false || strrchr($path, '/') === '/..') {
-			return false;
-		}
-		return true;
-	}
-
-	/**
-	 * checks if a file is blacklisted for storage in the filesystem
-	 * Listens to write and rename hooks
-	 *
-	 * @param array $data from hook
-	 */
-	static public function isBlacklisted($data) {
-		if (isset($data['path'])) {
-			$path = $data['path'];
-		} else if (isset($data['newpath'])) {
-			$path = $data['newpath'];
-		}
-		if (isset($path)) {
-			if (self::isFileBlacklisted($path)) {
-				$data['run'] = false;
-			}
-		}
-	}
-
-	/**
-	 * @param string $filename
-	 * @return bool
-	 */
-	static public function isFileBlacklisted($filename) {
-		$filename = self::normalizePath($filename);
-
-		$blacklist = \OC::$server->getConfig()->getSystemValue('blacklisted_files', array('.htaccess'));
-		$filename = strtolower(basename($filename));
-		return in_array($filename, $blacklist);
-	}
-
-	/**
-	 * check if the directory should be ignored when scanning
-	 * NOTE: the special directories . and .. would cause never ending recursion
-	 *
-	 * @param String $dir
-	 * @return boolean
-	 */
-	static public function isIgnoredDir($dir) {
-		if ($dir === '.' || $dir === '..') {
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * following functions are equivalent to their php builtin equivalents for arguments/return values.
-	 */
-	static public function mkdir($path) {
-		return self::$defaultInstance->mkdir($path);
-	}
-
-	static public function rmdir($path) {
-		return self::$defaultInstance->rmdir($path);
-	}
-
-	static public function opendir($path) {
-		return self::$defaultInstance->opendir($path);
-	}
-
-	static public function readdir($path) {
-		return self::$defaultInstance->readdir($path);
-	}
-
-	static public function is_dir($path) {
-		return self::$defaultInstance->is_dir($path);
-	}
-
-	static public function is_file($path) {
-		return self::$defaultInstance->is_file($path);
-	}
-
-	static public function stat($path) {
-		return self::$defaultInstance->stat($path);
-	}
-
-	static public function filetype($path) {
-		return self::$defaultInstance->filetype($path);
-	}
-
-	static public function filesize($path) {
-		return self::$defaultInstance->filesize($path);
-	}
-
-	static public function readfile($path) {
-		return self::$defaultInstance->readfile($path);
-	}
-
-	static public function isCreatable($path) {
-		return self::$defaultInstance->isCreatable($path);
-	}
-
-	static public function isReadable($path) {
-		return self::$defaultInstance->isReadable($path);
-	}
-
-	static public function isUpdatable($path) {
-		return self::$defaultInstance->isUpdatable($path);
-	}
-
-	static public function isDeletable($path) {
-		return self::$defaultInstance->isDeletable($path);
-	}
-
-	static public function isSharable($path) {
-		return self::$defaultInstance->isSharable($path);
-	}
-
-	static public function file_exists($path) {
-		return self::$defaultInstance->file_exists($path);
-	}
-
-	static public function filemtime($path) {
-		return self::$defaultInstance->filemtime($path);
-	}
-
-	static public function touch($path, $mtime = null) {
-		return self::$defaultInstance->touch($path, $mtime);
-	}
-
-	/**
-	 * @return string
-	 */
-	static public function file_get_contents($path) {
-		return self::$defaultInstance->file_get_contents($path);
-	}
-
-	static public function file_put_contents($path, $data) {
-		return self::$defaultInstance->file_put_contents($path, $data);
-	}
-
-	static public function unlink($path) {
-		return self::$defaultInstance->unlink($path);
-	}
-
-	static public function rename($path1, $path2) {
-		return self::$defaultInstance->rename($path1, $path2);
-	}
-
-	static public function copy($path1, $path2) {
-		return self::$defaultInstance->copy($path1, $path2);
-	}
-
-	static public function fopen($path, $mode) {
-		return self::$defaultInstance->fopen($path, $mode);
-	}
-
-	/**
-	 * @return string
-	 */
-	static public function toTmpFile($path) {
-		return self::$defaultInstance->toTmpFile($path);
-	}
-
-	static public function fromTmpFile($tmpFile, $path) {
-		return self::$defaultInstance->fromTmpFile($tmpFile, $path);
-	}
-
-	static public function getMimeType($path) {
-		return self::$defaultInstance->getMimeType($path);
-	}
-
-	static public function hash($type, $path, $raw = false) {
-		return self::$defaultInstance->hash($type, $path, $raw);
-	}
-
-	static public function free_space($path = '/') {
-		return self::$defaultInstance->free_space($path);
-	}
-
-	static public function search($query) {
-		return self::$defaultInstance->search($query);
-	}
-
-	/**
-	 * @param string $query
-	 */
-	static public function searchByMime($query) {
-		return self::$defaultInstance->searchByMime($query);
-	}
-
-	/**
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return FileInfo[] array or file info
-	 */
-	static public function searchByTag($tag, $userId) {
-		return self::$defaultInstance->searchByTag($tag, $userId);
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	static public function hasUpdated($path, $time) {
-		return self::$defaultInstance->hasUpdated($path, $time);
-	}
-
-	/**
-	 * Fix common problems with a file path
-	 *
-	 * @param string $path
-	 * @param bool $stripTrailingSlash
-	 * @param bool $isAbsolutePath
-	 * @return string
-	 */
-	public static function normalizePath($path, $stripTrailingSlash = true, $isAbsolutePath = false) {
-		/**
-		 * FIXME: This is a workaround for existing classes and files which call
-		 *        this function with another type than a valid string. This
-		 *        conversion should get removed as soon as all existing
-		 *        function calls have been fixed.
-		 */
-		$path = (string)$path;
-
-		$cacheKey = json_encode([$path, $stripTrailingSlash, $isAbsolutePath]);
-
-		if (isset(self::$normalizedPathCache[$cacheKey])) {
-			return self::$normalizedPathCache[$cacheKey];
-		}
-
-		if ($path == '') {
-			return '/';
-		}
-
-		//normalize unicode if possible
-		$path = \OC_Util::normalizeUnicode($path);
-
-		//no windows style slashes
-		$path = str_replace('\\', '/', $path);
-
-		// When normalizing an absolute path, we need to ensure that the drive-letter
-		// is still at the beginning on windows
-		$windows_drive_letter = '';
-		if ($isAbsolutePath && \OC_Util::runningOnWindows() && preg_match('#^([a-zA-Z])$#', $path[0]) && $path[1] == ':' && $path[2] == '/') {
-			$windows_drive_letter = substr($path, 0, 2);
-			$path = substr($path, 2);
-		}
-
-		//add leading slash
-		if ($path[0] !== '/') {
-			$path = '/' . $path;
-		}
-
-		// remove '/./'
-		// ugly, but str_replace() can't replace them all in one go
-		// as the replacement itself is part of the search string
-		// which will only be found during the next iteration
-		while (strpos($path, '/./') !== false) {
-			$path = str_replace('/./', '/', $path);
-		}
-		// remove sequences of slashes
-		$path = preg_replace('#/{2,}#', '/', $path);
-
-		//remove trailing slash
-		if ($stripTrailingSlash and strlen($path) > 1 and substr($path, -1, 1) === '/') {
-			$path = substr($path, 0, -1);
-		}
-
-		// remove trailing '/.'
-		if (substr($path, -2) == '/.') {
-			$path = substr($path, 0, -2);
-		}
-
-		$normalizedPath = $windows_drive_letter . $path;
-		self::$normalizedPathCache[$cacheKey] = $normalizedPath;
-
-		return $normalizedPath;
-	}
-
-	/**
-	 * get the filesystem info
-	 *
-	 * @param string $path
-	 * @param boolean $includeMountPoints whether to add mountpoint sizes,
-	 * defaults to true
-	 * @return \OC\Files\FileInfo|bool False if file does not exist
-	 */
-	public static function getFileInfo($path, $includeMountPoints = true) {
-		return self::$defaultInstance->getFileInfo($path, $includeMountPoints);
-	}
-
-	/**
-	 * change file metadata
-	 *
-	 * @param string $path
-	 * @param array $data
-	 * @return int
-	 *
-	 * returns the fileid of the updated file
-	 */
-	public static function putFileInfo($path, $data) {
-		return self::$defaultInstance->putFileInfo($path, $data);
-	}
-
-	/**
-	 * get the content of a directory
-	 *
-	 * @param string $directory path under datadirectory
-	 * @param string $mimetype_filter limit returned content to this mimetype or mimepart
-	 * @return \OC\Files\FileInfo[]
-	 */
-	public static function getDirectoryContent($directory, $mimetype_filter = '') {
-		return self::$defaultInstance->getDirectoryContent($directory, $mimetype_filter);
-	}
-
-	/**
-	 * Get the path of a file by id
-	 *
-	 * Note that the resulting path is not guaranteed to be unique for the id, multiple paths can point to the same file
-	 *
-	 * @param int $id
-	 * @throws NotFoundException
-	 * @return string
-	 */
-	public static function getPath($id) {
-		return self::$defaultInstance->getPath($id);
-	}
-
-	/**
-	 * Get the owner for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public static function getOwner($path) {
-		return self::$defaultInstance->getOwner($path);
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	static public function getETag($path) {
-		return self::$defaultInstance->getETag($path);
-	}
-}
diff --git a/lib/private/files/mount/manager.php b/lib/private/files/mount/manager.php
deleted file mode 100644
index ba4a7f8d910..00000000000
--- a/lib/private/files/mount/manager.php
+++ /dev/null
@@ -1,165 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Mount;
-
-use \OC\Files\Filesystem;
-use OCP\Files\Mount\IMountManager;
-use OCP\Files\Mount\IMountPoint;
-
-class Manager implements IMountManager {
-	/**
-	 * @var MountPoint[]
-	 */
-	private $mounts = array();
-
-	/**
-	 * @param IMountPoint $mount
-	 */
-	public function addMount(IMountPoint $mount) {
-		$this->mounts[$mount->getMountPoint()] = $mount;
-	}
-
-	/**
-	 * @param string $mountPoint
-	 */
-	public function removeMount($mountPoint) {
-		$mountPoint = Filesystem::normalizePath($mountPoint);
-		if (strlen($mountPoint) > 1) {
-			$mountPoint .= '/';
-		}
-		unset($this->mounts[$mountPoint]);
-	}
-
-	/**
-	 * @param string $mountPoint
-	 * @param string $target
-	 */
-	public function moveMount($mountPoint, $target){
-		$this->mounts[$target] = $this->mounts[$mountPoint];
-		unset($this->mounts[$mountPoint]);
-	}
-
-	/**
-	 * Find the mount for $path
-	 *
-	 * @param string $path
-	 * @return MountPoint
-	 */
-	public function find($path) {
-		\OC_Util::setupFS();
-		$path = $this->formatPath($path);
-		if (isset($this->mounts[$path])) {
-			return $this->mounts[$path];
-		}
-
-		\OC_Hook::emit('OC_Filesystem', 'get_mountpoint', array('path' => $path));
-		$foundMountPoint = '';
-		$mountPoints = array_keys($this->mounts);
-		foreach ($mountPoints as $mountpoint) {
-			if (strpos($path, $mountpoint) === 0 and strlen($mountpoint) > strlen($foundMountPoint)) {
-				$foundMountPoint = $mountpoint;
-			}
-		}
-		if (isset($this->mounts[$foundMountPoint])) {
-			return $this->mounts[$foundMountPoint];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Find all mounts in $path
-	 *
-	 * @param string $path
-	 * @return MountPoint[]
-	 */
-	public function findIn($path) {
-		\OC_Util::setupFS();
-		$path = $this->formatPath($path);
-		$result = array();
-		$pathLength = strlen($path);
-		$mountPoints = array_keys($this->mounts);
-		foreach ($mountPoints as $mountPoint) {
-			if (substr($mountPoint, 0, $pathLength) === $path and strlen($mountPoint) > $pathLength) {
-				$result[] = $this->mounts[$mountPoint];
-			}
-		}
-		return $result;
-	}
-
-	public function clear() {
-		$this->mounts = array();
-	}
-
-	/**
-	 * Find mounts by storage id
-	 *
-	 * @param string $id
-	 * @return MountPoint[]
-	 */
-	public function findByStorageId($id) {
-		\OC_Util::setupFS();
-		if (strlen($id) > 64) {
-			$id = md5($id);
-		}
-		$result = array();
-		foreach ($this->mounts as $mount) {
-			if ($mount->getStorageId() === $id) {
-				$result[] = $mount;
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * @return MountPoint[]
-	 */
-	public function getAll() {
-		return $this->mounts;
-	}
-
-	/**
-	 * Find mounts by numeric storage id
-	 *
-	 * @param int $id
-	 * @return MountPoint[]
-	 */
-	public function findByNumericId($id) {
-		$storageId = \OC\Files\Cache\Storage::getStorageId($id);
-		return $this->findByStorageId($storageId);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	private function formatPath($path) {
-		$path = Filesystem::normalizePath($path);
-		if (strlen($path) > 1) {
-			$path .= '/';
-		}
-		return $path;
-	}
-}
diff --git a/lib/private/files/mount/mountpoint.php b/lib/private/files/mount/mountpoint.php
deleted file mode 100644
index 7b9294fc1e0..00000000000
--- a/lib/private/files/mount/mountpoint.php
+++ /dev/null
@@ -1,251 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Mount;
-
-use \OC\Files\Filesystem;
-use OC\Files\Storage\StorageFactory;
-use OC\Files\Storage\Storage;
-use OCP\Files\Mount\IMountPoint;
-
-class MountPoint implements IMountPoint {
-	/**
-	 * @var \OC\Files\Storage\Storage $storage
-	 */
-	protected $storage = null;
-	protected $class;
-	protected $storageId;
-
-	/**
-	 * Configuration options for the storage backend
-	 *
-	 * @var array
-	 */
-	protected $arguments = array();
-	protected $mountPoint;
-
-	/**
-	 * Mount specific options
-	 *
-	 * @var array
-	 */
-	protected $mountOptions = array();
-
-	/**
-	 * @var \OC\Files\Storage\StorageFactory $loader
-	 */
-	private $loader;
-
-	/**
-	 * Specified whether the storage is invalid after failing to
-	 * instantiate it.
-	 *
-	 * @var bool
-	 */
-	private $invalidStorage = false;
-
-	/**
-	 * @param string|\OC\Files\Storage\Storage $storage
-	 * @param string $mountpoint
-	 * @param array $arguments (optional) configuration for the storage backend
-	 * @param \OCP\Files\Storage\IStorageFactory $loader
-	 * @param array $mountOptions mount specific options
-	 */
-	public function __construct($storage, $mountpoint, $arguments = null, $loader = null, $mountOptions = null) {
-		if (is_null($arguments)) {
-			$arguments = array();
-		}
-		if (is_null($loader)) {
-			$this->loader = new StorageFactory();
-		} else {
-			$this->loader = $loader;
-		}
-
-		if (!is_null($mountOptions)) {
-			$this->mountOptions = $mountOptions;
-		}
-
-		$mountpoint = $this->formatPath($mountpoint);
-		$this->mountPoint = $mountpoint;
-		if ($storage instanceof Storage) {
-			$this->class = get_class($storage);
-			$this->storage = $this->loader->wrap($this, $storage);
-		} else {
-			// Update old classes to new namespace
-			if (strpos($storage, 'OC_Filestorage_') !== false) {
-				$storage = '\OC\Files\Storage\\' . substr($storage, 15);
-			}
-			$this->class = $storage;
-			$this->arguments = $arguments;
-		}
-	}
-
-	/**
-	 * get complete path to the mount point, relative to data/
-	 *
-	 * @return string
-	 */
-	public function getMountPoint() {
-		return $this->mountPoint;
-	}
-
-	/**
-	 * Sets the mount point path, relative to data/
-	 *
-	 * @param string $mountPoint new mount point
-	 */
-	public function setMountPoint($mountPoint) {
-		$this->mountPoint = $this->formatPath($mountPoint);
-	}
-
-	/**
-	 * create the storage that is mounted
-	 *
-	 * @return \OC\Files\Storage\Storage
-	 */
-	private function createStorage() {
-		if ($this->invalidStorage) {
-			return null;
-		}
-
-		if (class_exists($this->class)) {
-			try {
-				return $this->loader->getInstance($this, $this->class, $this->arguments);
-			} catch (\Exception $exception) {
-				$this->invalidStorage = true;
-				if ($this->mountPoint === '/') {
-					// the root storage could not be initialized, show the user!
-					throw new \Exception('The root storage could not be initialized. Please contact your local administrator.', $exception->getCode(), $exception);
-				} else {
-					\OCP\Util::writeLog('core', $exception->getMessage(), \OCP\Util::ERROR);
-				}
-				return null;
-			}
-		} else {
-			\OCP\Util::writeLog('core', 'storage backend ' . $this->class . ' not found', \OCP\Util::ERROR);
-			$this->invalidStorage = true;
-			return null;
-		}
-	}
-
-	/**
-	 * @return \OC\Files\Storage\Storage
-	 */
-	public function getStorage() {
-		if (is_null($this->storage)) {
-			$this->storage = $this->createStorage();
-		}
-		return $this->storage;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getStorageId() {
-		if (!$this->storageId) {
-			if (is_null($this->storage)) {
-				$storage = $this->createStorage(); //FIXME: start using exceptions
-				if (is_null($storage)) {
-					return null;
-				}
-
-				$this->storage = $storage;
-			}
-			$this->storageId = $this->storage->getId();
-			if (strlen($this->storageId) > 64) {
-				$this->storageId = md5($this->storageId);
-			}
-		}
-		return $this->storageId;
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function getInternalPath($path) {
-		if ($this->mountPoint === $path or $this->mountPoint . '/' === $path) {
-			$internalPath = '';
-		} else {
-			$internalPath = substr($path, strlen($this->mountPoint));
-		}
-		// substr returns false instead of an empty string, we always want a string
-		return (string)$internalPath;
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	private function formatPath($path) {
-		$path = Filesystem::normalizePath($path);
-		if (strlen($path) > 1) {
-			$path .= '/';
-		}
-		return $path;
-	}
-
-	/**
-	 * @param callable $wrapper
-	 */
-	public function wrapStorage($wrapper) {
-		$storage = $this->getStorage();
-		// storage can be null if it couldn't be initialized
-		if ($storage != null) {
-			$this->storage = $wrapper($this->mountPoint, $storage, $this);
-		}
-	}
-
-	/**
-	 * Get a mount option
-	 *
-	 * @param string $name Name of the mount option to get
-	 * @param mixed $default Default value for the mount option
-	 * @return mixed
-	 */
-	public function getOption($name, $default) {
-		return isset($this->mountOptions[$name]) ? $this->mountOptions[$name] : $default;
-	}
-
-	/**
-	 * Get all options for the mount
-	 *
-	 * @return array
-	 */
-	public function getOptions() {
-		return $this->mountOptions;
-	}
-
-	/**
-	 * Get the file id of the root of the storage
-	 *
-	 * @return int
-	 */
-	public function getStorageRootId() {
-		return (int)$this->getStorage()->getCache()->getId('');
-	}
-}
diff --git a/lib/private/files/mount/moveablemount.php b/lib/private/files/mount/moveablemount.php
deleted file mode 100644
index 8a1bd7dd9c5..00000000000
--- a/lib/private/files/mount/moveablemount.php
+++ /dev/null
@@ -1,44 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Mount;
-
-/**
- * Defines the mount point to be (re)moved by the user
- */
-interface MoveableMount {
-	/**
-	 * Move the mount point to $target
-	 *
-	 * @param string $target the target mount point
-	 * @return bool
-	 */
-	public function moveMount($target);
-
-	/**
-	 * Remove the mount points
-	 *
-	 * @return mixed
-	 * @return bool
-	 */
-	public function removeMount();
-}
diff --git a/lib/private/files/node/file.php b/lib/private/files/node/file.php
deleted file mode 100644
index 9e0014abb0b..00000000000
--- a/lib/private/files/node/file.php
+++ /dev/null
@@ -1,176 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OCP\Files\NotPermittedException;
-
-class File extends Node implements \OCP\Files\File {
-	/**
-	 * @return string
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function getContent() {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_READ)) {
-			/**
-			 * @var \OC\Files\Storage\Storage $storage;
-			 */
-			return $this->view->file_get_contents($this->path);
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $data
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function putContent($data) {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_UPDATE)) {
-			$this->sendHooks(array('preWrite'));
-			$this->view->file_put_contents($this->path, $data);
-			$this->fileInfo = null;
-			$this->sendHooks(array('postWrite'));
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $mode
-	 * @return resource
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function fopen($mode) {
-		$preHooks = array();
-		$postHooks = array();
-		$requiredPermissions = \OCP\Constants::PERMISSION_READ;
-		switch ($mode) {
-			case 'r+':
-			case 'rb+':
-			case 'w+':
-			case 'wb+':
-			case 'x+':
-			case 'xb+':
-			case 'a+':
-			case 'ab+':
-			case 'w':
-			case 'wb':
-			case 'x':
-			case 'xb':
-			case 'a':
-			case 'ab':
-				$preHooks[] = 'preWrite';
-				$postHooks[] = 'postWrite';
-				$requiredPermissions |= \OCP\Constants::PERMISSION_UPDATE;
-				break;
-		}
-
-		if ($this->checkPermissions($requiredPermissions)) {
-			$this->sendHooks($preHooks);
-			$result = $this->view->fopen($this->path, $mode);
-			$this->sendHooks($postHooks);
-			return $result;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	public function delete() {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_DELETE)) {
-			$this->sendHooks(array('preDelete'));
-			$fileInfo = $this->getFileInfo();
-			$this->view->unlink($this->path);
-			$nonExisting = new NonExistingFile($this->root, $this->view, $this->path, $fileInfo);
-			$this->root->emit('\OC\Files', 'postDelete', array($nonExisting));
-			$this->exists = false;
-			$this->fileInfo = null;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function copy($targetPath) {
-		$targetPath = $this->normalizePath($targetPath);
-		$parent = $this->root->get(dirname($targetPath));
-		if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) {
-			$nonExisting = new NonExistingFile($this->root, $this->view, $targetPath);
-			$this->root->emit('\OC\Files', 'preCopy', array($this, $nonExisting));
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->view->copy($this->path, $targetPath);
-			$targetNode = $this->root->get($targetPath);
-			$this->root->emit('\OC\Files', 'postCopy', array($this, $targetNode));
-			$this->root->emit('\OC\Files', 'postWrite', array($targetNode));
-			return $targetNode;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function move($targetPath) {
-		$targetPath = $this->normalizePath($targetPath);
-		$parent = $this->root->get(dirname($targetPath));
-		if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) {
-			$nonExisting = new NonExistingFile($this->root, $this->view, $targetPath);
-			$this->root->emit('\OC\Files', 'preRename', array($this, $nonExisting));
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->view->rename($this->path, $targetPath);
-			$targetNode = $this->root->get($targetPath);
-			$this->root->emit('\OC\Files', 'postRename', array($this, $targetNode));
-			$this->root->emit('\OC\Files', 'postWrite', array($targetNode));
-			$this->path = $targetPath;
-			$this->fileInfo = null;
-			return $targetNode;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $type
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $raw = false) {
-		return $this->view->hash($type, $this->path, $raw);
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getChecksum() {
-		return $this->getFileInfo()->getChecksum();
-	}
-}
diff --git a/lib/private/files/node/folder.php b/lib/private/files/node/folder.php
deleted file mode 100644
index f4d7dae20a3..00000000000
--- a/lib/private/files/node/folder.php
+++ /dev/null
@@ -1,360 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OCP\Files\FileInfo;
-use OCP\Files\NotFoundException;
-use OCP\Files\NotPermittedException;
-
-class Folder extends Node implements \OCP\Files\Folder {
-	/**
-	 * @param string $path path relative to the folder
-	 * @return string
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function getFullPath($path) {
-		if (!$this->isValidPath($path)) {
-			throw new NotPermittedException();
-		}
-		return $this->path . $this->normalizePath($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function getRelativePath($path) {
-		if ($this->path === '' or $this->path === '/') {
-			return $this->normalizePath($path);
-		}
-		if ($path === $this->path) {
-			return '/';
-		} else if (strpos($path, $this->path . '/') !== 0) {
-			return null;
-		} else {
-			$path = substr($path, strlen($this->path));
-			return $this->normalizePath($path);
-		}
-	}
-
-	/**
-	 * check if a node is a (grand-)child of the folder
-	 *
-	 * @param \OC\Files\Node\Node $node
-	 * @return bool
-	 */
-	public function isSubNode($node) {
-		return strpos($node->getPath(), $this->path . '/') === 0;
-	}
-
-	/**
-	 * get the content of this directory
-	 *
-	 * @throws \OCP\Files\NotFoundException
-	 * @return Node[]
-	 */
-	public function getDirectoryListing() {
-		$folderContent = $this->view->getDirectoryContent($this->path);
-
-		return array_map(function(FileInfo $info) {
-			if ($info->getMimetype() === 'httpd/unix-directory') {
-				return new Folder($this->root, $this->view, $info->getPath(), $info);
-			} else {
-				return new File($this->root, $this->view, $info->getPath(), $info);
-			}
-		}, $folderContent);
-	}
-
-	/**
-	 * @param string $path
-	 * @param FileInfo $info
-	 * @return File|Folder
-	 */
-	protected function createNode($path, FileInfo $info = null) {
-		if (is_null($info)) {
-			$isDir = $this->view->is_dir($path);
-		} else {
-			$isDir = $info->getType() === FileInfo::TYPE_FOLDER;
-		}
-		if ($isDir) {
-			return new Folder($this->root, $this->view, $path, $info);
-		} else {
-			return new File($this->root, $this->view, $path, $info);
-		}
-	}
-
-	/**
-	 * Get the node at $path
-	 *
-	 * @param string $path
-	 * @return \OC\Files\Node\Node
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function get($path) {
-		return $this->root->get($this->getFullPath($path));
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool
-	 */
-	public function nodeExists($path) {
-		try {
-			$this->get($path);
-			return true;
-		} catch (NotFoundException $e) {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return \OC\Files\Node\Folder
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function newFolder($path) {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_CREATE)) {
-			$fullPath = $this->getFullPath($path);
-			$nonExisting = new NonExistingFolder($this->root, $this->view, $fullPath);
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->root->emit('\OC\Files', 'preCreate', array($nonExisting));
-			$this->view->mkdir($fullPath);
-			$node = new Folder($this->root, $this->view, $fullPath);
-			$this->root->emit('\OC\Files', 'postWrite', array($node));
-			$this->root->emit('\OC\Files', 'postCreate', array($node));
-			return $node;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return \OC\Files\Node\File
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function newFile($path) {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_CREATE)) {
-			$fullPath = $this->getFullPath($path);
-			$nonExisting = new NonExistingFile($this->root, $this->view, $fullPath);
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->root->emit('\OC\Files', 'preCreate', array($nonExisting));
-			$this->view->touch($fullPath);
-			$node = new File($this->root, $this->view, $fullPath);
-			$this->root->emit('\OC\Files', 'postWrite', array($node));
-			$this->root->emit('\OC\Files', 'postCreate', array($node));
-			return $node;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * search for files with the name matching $query
-	 *
-	 * @param string $query
-	 * @return \OC\Files\Node\Node[]
-	 */
-	public function search($query) {
-		return $this->searchCommon('search', array('%' . $query . '%'));
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype
-	 * @return Node[]
-	 */
-	public function searchByMime($mimetype) {
-		return $this->searchCommon('searchByMime', array($mimetype));
-	}
-
-	/**
-	 * search for files by tag
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return Node[]
-	 */
-	public function searchByTag($tag, $userId) {
-		return $this->searchCommon('searchByTag', array($tag, $userId));
-	}
-
-	/**
-	 * @param string $method cache method
-	 * @param array $args call args
-	 * @return \OC\Files\Node\Node[]
-	 */
-	private function searchCommon($method, $args) {
-		$files = array();
-		$rootLength = strlen($this->path);
-		$mount = $this->root->getMount($this->path);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($this->path);
-		$internalPath = rtrim($internalPath, '/');
-		if ($internalPath !== '') {
-			$internalPath = $internalPath . '/';
-		}
-		$internalRootLength = strlen($internalPath);
-
-		$cache = $storage->getCache('');
-
-		$results = call_user_func_array(array($cache, $method), $args);
-		foreach ($results as $result) {
-			if ($internalRootLength === 0 or substr($result['path'], 0, $internalRootLength) === $internalPath) {
-				$result['internalPath'] = $result['path'];
-				$result['path'] = substr($result['path'], $internalRootLength);
-				$result['storage'] = $storage;
-				$files[] = new \OC\Files\FileInfo($this->path . '/' . $result['path'], $storage, $result['internalPath'], $result, $mount);
-			}
-		}
-
-		$mounts = $this->root->getMountsIn($this->path);
-		foreach ($mounts as $mount) {
-			$storage = $mount->getStorage();
-			if ($storage) {
-				$cache = $storage->getCache('');
-
-				$relativeMountPoint = substr($mount->getMountPoint(), $rootLength);
-				$results = call_user_func_array(array($cache, $method), $args);
-				foreach ($results as $result) {
-					$result['internalPath'] = $result['path'];
-					$result['path'] = $relativeMountPoint . $result['path'];
-					$result['storage'] = $storage;
-					$files[] = new \OC\Files\FileInfo($this->path . '/' . $result['path'], $storage, $result['internalPath'], $result, $mount);
-				}
-			}
-		}
-
-		return array_map(function(FileInfo $file) {
-			return $this->createNode($file->getPath(), $file);
-		}, $files);
-	}
-
-	/**
-	 * @param int $id
-	 * @return \OC\Files\Node\Node[]
-	 */
-	public function getById($id) {
-		$mounts = $this->root->getMountsIn($this->path);
-		$mounts[] = $this->root->getMount($this->path);
-		// reverse the array so we start with the storage this view is in
-		// which is the most likely to contain the file we're looking for
-		$mounts = array_reverse($mounts);
-
-		$nodes = array();
-		foreach ($mounts as $mount) {
-			/**
-			 * @var \OC\Files\Mount\MountPoint $mount
-			 */
-			if ($mount->getStorage()) {
-				$cache = $mount->getStorage()->getCache();
-				$internalPath = $cache->getPathById($id);
-				if (is_string($internalPath)) {
-					$fullPath = $mount->getMountPoint() . $internalPath;
-					if (!is_null($path = $this->getRelativePath($fullPath))) {
-						$nodes[] = $this->get($path);
-					}
-				}
-			}
-		}
-		return $nodes;
-	}
-
-	public function getFreeSpace() {
-		return $this->view->free_space($this->path);
-	}
-
-	public function delete() {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_DELETE)) {
-			$this->sendHooks(array('preDelete'));
-			$fileInfo = $this->getFileInfo();
-			$this->view->rmdir($this->path);
-			$nonExisting = new NonExistingFolder($this->root, $this->view, $this->path, $fileInfo);
-			$this->root->emit('\OC\Files', 'postDelete', array($nonExisting));
-			$this->exists = false;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function copy($targetPath) {
-		$targetPath = $this->normalizePath($targetPath);
-		$parent = $this->root->get(dirname($targetPath));
-		if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) {
-			$nonExisting = new NonExistingFolder($this->root, $this->view, $targetPath);
-			$this->root->emit('\OC\Files', 'preCopy', array($this, $nonExisting));
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->view->copy($this->path, $targetPath);
-			$targetNode = $this->root->get($targetPath);
-			$this->root->emit('\OC\Files', 'postCopy', array($this, $targetNode));
-			$this->root->emit('\OC\Files', 'postWrite', array($targetNode));
-			return $targetNode;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function move($targetPath) {
-		$targetPath = $this->normalizePath($targetPath);
-		$parent = $this->root->get(dirname($targetPath));
-		if ($parent instanceof Folder and $this->isValidPath($targetPath) and $parent->isCreatable()) {
-			$nonExisting = new NonExistingFolder($this->root, $this->view, $targetPath);
-			$this->root->emit('\OC\Files', 'preRename', array($this, $nonExisting));
-			$this->root->emit('\OC\Files', 'preWrite', array($nonExisting));
-			$this->view->rename($this->path, $targetPath);
-			$targetNode = $this->root->get($targetPath);
-			$this->root->emit('\OC\Files', 'postRename', array($this, $targetNode));
-			$this->root->emit('\OC\Files', 'postWrite', array($targetNode));
-			$this->path = $targetPath;
-			return $targetNode;
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * Add a suffix to the name in case the file exists
-	 *
-	 * @param string $name
-	 * @return string
-	 * @throws NotPermittedException
-	 */
-	public function getNonExistingName($name) {
-		$uniqueName = \OC_Helper::buildNotExistingFileNameForView($this->getPath(), $name, $this->view);
-		return trim($this->getRelativePath($uniqueName), '/');
-	}
-}
diff --git a/lib/private/files/node/hookconnector.php b/lib/private/files/node/hookconnector.php
deleted file mode 100644
index 5c36ca3848e..00000000000
--- a/lib/private/files/node/hookconnector.php
+++ /dev/null
@@ -1,164 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OCP\Files\FileInfo;
-use OC\Files\Filesystem;
-use OC\Files\View;
-use OCP\Util;
-
-class HookConnector {
-	/**
-	 * @var Root
-	 */
-	private $root;
-
-	/**
-	 * @var View
-	 */
-	private $view;
-
-	/**
-	 * @var FileInfo[]
-	 */
-	private $deleteMetaCache = [];
-
-	/**
-	 * HookConnector constructor.
-	 *
-	 * @param Root $root
-	 * @param View $view
-	 */
-	public function __construct(Root $root, View $view) {
-		$this->root = $root;
-		$this->view = $view;
-	}
-
-	public function viewToNode() {
-		Util::connectHook('OC_Filesystem', 'write', $this, 'write');
-		Util::connectHook('OC_Filesystem', 'post_write', $this, 'postWrite');
-
-		Util::connectHook('OC_Filesystem', 'create', $this, 'create');
-		Util::connectHook('OC_Filesystem', 'post_create', $this, 'postCreate');
-
-		Util::connectHook('OC_Filesystem', 'delete', $this, 'delete');
-		Util::connectHook('OC_Filesystem', 'post_delete', $this, 'postDelete');
-
-		Util::connectHook('OC_Filesystem', 'rename', $this, 'rename');
-		Util::connectHook('OC_Filesystem', 'post_rename', $this, 'postRename');
-
-		Util::connectHook('OC_Filesystem', 'copy', $this, 'copy');
-		Util::connectHook('OC_Filesystem', 'post_copy', $this, 'postCopy');
-
-		Util::connectHook('OC_Filesystem', 'touch', $this, 'touch');
-		Util::connectHook('OC_Filesystem', 'post_touch', $this, 'postTouch');
-	}
-
-	public function write($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'preWrite', [$node]);
-	}
-
-	public function postWrite($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'postWrite', [$node]);
-	}
-
-	public function create($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'preCreate', [$node]);
-	}
-
-	public function postCreate($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'postCreate', [$node]);
-	}
-
-	public function delete($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->deleteMetaCache[$node->getPath()] = $node->getFileInfo();
-		$this->root->emit('\OC\Files', 'preDelete', [$node]);
-	}
-
-	public function postDelete($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		unset($this->deleteMetaCache[$node->getPath()]);
-		$this->root->emit('\OC\Files', 'postDelete', [$node]);
-	}
-
-	public function touch($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'preTouch', [$node]);
-	}
-
-	public function postTouch($arguments) {
-		$node = $this->getNodeForPath($arguments['path']);
-		$this->root->emit('\OC\Files', 'postTouch', [$node]);
-	}
-
-	public function rename($arguments) {
-		$source = $this->getNodeForPath($arguments['oldpath']);
-		$target = $this->getNodeForPath($arguments['newpath']);
-		$this->root->emit('\OC\Files', 'preRename', [$source, $target]);
-	}
-
-	public function postRename($arguments) {
-		$source = $this->getNodeForPath($arguments['oldpath']);
-		$target = $this->getNodeForPath($arguments['newpath']);
-		$this->root->emit('\OC\Files', 'postRename', [$source, $target]);
-	}
-
-	public function copy($arguments) {
-		$source = $this->getNodeForPath($arguments['oldpath']);
-		$target = $this->getNodeForPath($arguments['newpath']);
-		$this->root->emit('\OC\Files', 'preCopy', [$source, $target]);
-	}
-
-	public function postCopy($arguments) {
-		$source = $this->getNodeForPath($arguments['oldpath']);
-		$target = $this->getNodeForPath($arguments['newpath']);
-		$this->root->emit('\OC\Files', 'postCopy', [$source, $target]);
-	}
-
-	private function getNodeForPath($path) {
-		$info = Filesystem::getView()->getFileInfo($path);
-		if (!$info) {
-
-			$fullPath = Filesystem::getView()->getAbsolutePath($path);
-			if (isset($this->deleteMetaCache[$fullPath])) {
-				$info = $this->deleteMetaCache[$fullPath];
-			} else {
-				$info = null;
-			}
-			if (Filesystem::is_dir($path)) {
-				return new NonExistingFolder($this->root, $this->view, $fullPath, $info);
-			} else {
-				return new NonExistingFile($this->root, $this->view, $fullPath, $info);
-			}
-		}
-		if ($info->getType() === FileInfo::TYPE_FILE) {
-			return new File($this->root, $this->view, $info->getPath(), $info);
-		} else {
-			return new Folder($this->root, $this->view, $info->getPath(), $info);
-		}
-	}
-}
diff --git a/lib/private/files/node/lazyroot.php b/lib/private/files/node/lazyroot.php
deleted file mode 100644
index 9661f036579..00000000000
--- a/lib/private/files/node/lazyroot.php
+++ /dev/null
@@ -1,474 +0,0 @@
-<?php
-/**
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\Files\Node;
-
-use OC\Files\Mount\MountPoint;
-use OCP\Files\IRootFolder;
-use OCP\Files\NotPermittedException;
-
-/**
- * Class LazyRoot
- *
- * This is a lazy wrapper around the root. So only
- * once it is needed this will get initialized.
- *
- * @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) {
-		$this->__call(__FUNCTION__, func_get_args());
-	}
-
-	/**
-	 * @inheritDoc
-	 */
-	public function rename($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());
-	}
-
-
-}
diff --git a/lib/private/files/node/node.php b/lib/private/files/node/node.php
deleted file mode 100644
index c4fabfc2e2e..00000000000
--- a/lib/private/files/node/node.php
+++ /dev/null
@@ -1,383 +0,0 @@
-<?php
-/**
- * @author Bernhard Posselt <dev@bernhard-posselt.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OC\Files\Filesystem;
-use OCP\Files\FileInfo;
-use OCP\Files\InvalidPathException;
-use OCP\Files\NotFoundException;
-use OCP\Files\NotPermittedException;
-
-class Node implements \OCP\Files\Node {
-	/**
-	 * @var \OC\Files\View $view
-	 */
-	protected $view;
-
-	/**
-	 * @var \OC\Files\Node\Root $root
-	 */
-	protected $root;
-
-	/**
-	 * @var string $path
-	 */
-	protected $path;
-
-	/**
-	 * @var \OCP\Files\FileInfo
-	 */
-	protected $fileInfo;
-
-	/**
-	 * @param \OC\Files\View $view
-	 * @param \OC\Files\Node\Root $root
-	 * @param string $path
-	 * @param FileInfo $fileInfo
-	 */
-	public function __construct($root, $view, $path, $fileInfo = null) {
-		$this->view = $view;
-		$this->root = $root;
-		$this->path = $path;
-		$this->fileInfo = $fileInfo;
-	}
-
-	/**
-	 * Returns the matching file info
-	 *
-	 * @return FileInfo
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getFileInfo() {
-		if (!Filesystem::isValidPath($this->path)) {
-			throw new InvalidPathException();
-		}
-		if (!$this->fileInfo) {
-			$fileInfo = $this->view->getFileInfo($this->path);
-			if ($fileInfo instanceof FileInfo) {
-				$this->fileInfo = $fileInfo;
-			} else {
-				throw new NotFoundException();
-			}
-		}
-		return $this->fileInfo;
-	}
-
-	/**
-	 * @param string[] $hooks
-	 */
-	protected function sendHooks($hooks) {
-		foreach ($hooks as $hook) {
-			$this->root->emit('\OC\Files', $hook, array($this));
-		}
-	}
-
-	/**
-	 * @param int $permissions
-	 * @return bool
-	 */
-	protected function checkPermissions($permissions) {
-		return ($this->getPermissions() & $permissions) === $permissions;
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function move($targetPath) {
-		return;
-	}
-
-	public function delete() {
-		return;
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @return \OC\Files\Node\Node
-	 */
-	public function copy($targetPath) {
-		return;
-	}
-
-	/**
-	 * @param int $mtime
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function touch($mtime = null) {
-		if ($this->checkPermissions(\OCP\Constants::PERMISSION_UPDATE)) {
-			$this->sendHooks(array('preTouch'));
-			$this->view->touch($this->path, $mtime);
-			$this->sendHooks(array('postTouch'));
-			if ($this->fileInfo) {
-				if (is_null($mtime)) {
-					$mtime = time();
-				}
-				$this->fileInfo['mtime'] = $mtime;
-			}
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	/**
-	 * @return \OC\Files\Storage\Storage
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function getStorage() {
-		list($storage,) = $this->view->resolvePath($this->path);
-		return $storage;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getPath() {
-		return $this->path;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getInternalPath() {
-		list(, $internalPath) = $this->view->resolvePath($this->path);
-		return $internalPath;
-	}
-
-	/**
-	 * @return int
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getId() {
-		return $this->getFileInfo()->getId();
-	}
-
-	/**
-	 * @return array
-	 */
-	public function stat() {
-		return $this->view->stat($this->path);
-	}
-
-	/**
-	 * @return int
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getMTime() {
-		return $this->getFileInfo()->getMTime();
-	}
-
-	/**
-	 * @return int
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getSize() {
-		return $this->getFileInfo()->getSize();
-	}
-
-	/**
-	 * @return string
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getEtag() {
-		return $this->getFileInfo()->getEtag();
-	}
-
-	/**
-	 * @return int
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function getPermissions() {
-		return $this->getFileInfo()->getPermissions();
-	}
-
-	/**
-	 * @return bool
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function isReadable() {
-		return $this->getFileInfo()->isReadable();
-	}
-
-	/**
-	 * @return bool
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function isUpdateable() {
-		return $this->getFileInfo()->isUpdateable();
-	}
-
-	/**
-	 * @return bool
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function isDeletable() {
-		return $this->getFileInfo()->isDeletable();
-	}
-
-	/**
-	 * @return bool
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function isShareable() {
-		return $this->getFileInfo()->isShareable();
-	}
-
-	/**
-	 * @return bool
-	 * @throws InvalidPathException
-	 * @throws NotFoundException
-	 */
-	public function isCreatable() {
-		return $this->getFileInfo()->isCreatable();
-	}
-
-	/**
-	 * @return Node
-	 */
-	public function getParent() {
-		return $this->root->get(dirname($this->path));
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getName() {
-		return basename($this->path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	protected function normalizePath($path) {
-		if ($path === '' or $path === '/') {
-			return '/';
-		}
-		//no windows style slashes
-		$path = str_replace('\\', '/', $path);
-		//add leading slash
-		if ($path[0] !== '/') {
-			$path = '/' . $path;
-		}
-		//remove duplicate slashes
-		while (strpos($path, '//') !== false) {
-			$path = str_replace('//', '/', $path);
-		}
-		//remove trailing slash
-		$path = rtrim($path, '/');
-
-		return $path;
-	}
-
-	/**
-	 * check if the requested path is valid
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isValidPath($path) {
-		if (!$path || $path[0] !== '/') {
-			$path = '/' . $path;
-		}
-		if (strstr($path, '/../') || strrchr($path, '/') === '/..') {
-			return false;
-		}
-		return true;
-	}
-
-	public function isMounted() {
-		return $this->getFileInfo()->isMounted();
-	}
-
-	public function isShared() {
-		return $this->getFileInfo()->isShared();
-	}
-
-	public function getMimeType() {
-		return $this->getFileInfo()->getMimetype();
-	}
-
-	public function getMimePart() {
-		return $this->getFileInfo()->getMimePart();
-	}
-
-	public function getType() {
-		return $this->getFileInfo()->getType();
-	}
-
-	public function isEncrypted() {
-		return $this->getFileInfo()->isEncrypted();
-	}
-
-	public function getMountPoint() {
-		return $this->getFileInfo()->getMountPoint();
-	}
-
-	public function getOwner() {
-		return $this->getFileInfo()->getOwner();
-	}
-
-	public function getChecksum() {
-		return;
-	}
-
-	/**
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function lock($type) {
-		$this->view->lockFile($this->path, $type);
-	}
-
-	/**
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function changeLock($type) {
-		$this->view->changeLock($this->path, $type);
-	}
-
-	/**
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function unlock($type) {
-		$this->view->unlockFile($this->path, $type);
-	}
-}
diff --git a/lib/private/files/node/nonexistingfile.php b/lib/private/files/node/nonexistingfile.php
deleted file mode 100644
index c1d09bcc491..00000000000
--- a/lib/private/files/node/nonexistingfile.php
+++ /dev/null
@@ -1,143 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OCP\Files\NotFoundException;
-
-class NonExistingFile extends File {
-	/**
-	 * @param string $newPath
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function rename($newPath) {
-		throw new NotFoundException();
-	}
-
-	public function delete() {
-		throw new NotFoundException();
-	}
-
-	public function copy($newPath) {
-		throw new NotFoundException();
-	}
-
-	public function touch($mtime = null) {
-		throw new NotFoundException();
-	}
-
-	public function getId() {
-		if ($this->fileInfo) {
-			return parent::getId();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function stat() {
-		throw new NotFoundException();
-	}
-
-	public function getMTime() {
-		if ($this->fileInfo) {
-			return parent::getMTime();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getSize() {
-		if ($this->fileInfo) {
-			return parent::getSize();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getEtag() {
-		if ($this->fileInfo) {
-			return parent::getEtag();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getPermissions() {
-		if ($this->fileInfo) {
-			return parent::getPermissions();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isReadable() {
-		if ($this->fileInfo) {
-			return parent::isReadable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isUpdateable() {
-		if ($this->fileInfo) {
-			return parent::isUpdateable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isDeletable() {
-		if ($this->fileInfo) {
-			return parent::isDeletable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isShareable() {
-		if ($this->fileInfo) {
-			return parent::isShareable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getContent() {
-		throw new NotFoundException();
-	}
-
-	public function putContent($data) {
-		throw new NotFoundException();
-	}
-
-	public function getMimeType() {
-		if ($this->fileInfo) {
-			return parent::getMimeType();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function fopen($mode) {
-		throw new NotFoundException();
-	}
-}
diff --git a/lib/private/files/node/nonexistingfolder.php b/lib/private/files/node/nonexistingfolder.php
deleted file mode 100644
index 7d6576f1bd6..00000000000
--- a/lib/private/files/node/nonexistingfolder.php
+++ /dev/null
@@ -1,172 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OCP\Files\NotFoundException;
-
-class NonExistingFolder extends Folder {
-	/**
-	 * @param string $newPath
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function rename($newPath) {
-		throw new NotFoundException();
-	}
-
-	public function delete() {
-		throw new NotFoundException();
-	}
-
-	public function copy($newPath) {
-		throw new NotFoundException();
-	}
-
-	public function touch($mtime = null) {
-		throw new NotFoundException();
-	}
-
-	public function getId() {
-		if ($this->fileInfo) {
-			return parent::getId();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function stat() {
-		throw new NotFoundException();
-	}
-
-	public function getMTime() {
-		if ($this->fileInfo) {
-			return parent::getMTime();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getSize() {
-		if ($this->fileInfo) {
-			return parent::getSize();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getEtag() {
-		if ($this->fileInfo) {
-			return parent::getEtag();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function getPermissions() {
-		if ($this->fileInfo) {
-			return parent::getPermissions();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isReadable() {
-		if ($this->fileInfo) {
-			return parent::isReadable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isUpdateable() {
-		if ($this->fileInfo) {
-			return parent::isUpdateable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isDeletable() {
-		if ($this->fileInfo) {
-			return parent::isDeletable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function isShareable() {
-		if ($this->fileInfo) {
-			return parent::isShareable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-
-	public function get($path) {
-		throw new NotFoundException();
-	}
-
-	public function getDirectoryListing() {
-		throw new NotFoundException();
-	}
-
-	public function nodeExists($path) {
-		return false;
-	}
-
-	public function newFolder($path) {
-		throw new NotFoundException();
-	}
-
-	public function newFile($path) {
-		throw new NotFoundException();
-	}
-
-	public function search($pattern) {
-		throw new NotFoundException();
-	}
-
-	public function searchByMime($mime) {
-		throw new NotFoundException();
-	}
-
-	public function searchByTag($tag, $userId) {
-		throw new NotFoundException();
-	}
-
-	public function getById($id) {
-		throw new NotFoundException();
-	}
-
-	public function getFreeSpace() {
-		throw new NotFoundException();
-	}
-
-	public function isCreatable() {
-		if ($this->fileInfo) {
-			return parent::isCreatable();
-		} else {
-			throw new NotFoundException();
-		}
-	}
-}
diff --git a/lib/private/files/node/root.php b/lib/private/files/node/root.php
deleted file mode 100644
index 04866e60b87..00000000000
--- a/lib/private/files/node/root.php
+++ /dev/null
@@ -1,357 +0,0 @@
-<?php
-/**
- * @author Bernhard Posselt <dev@bernhard-posselt.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Node;
-
-use OC\Files\Mount\Manager;
-use OC\Files\Mount\MountPoint;
-use OCP\Files\NotFoundException;
-use OCP\Files\NotPermittedException;
-use OC\Hooks\PublicEmitter;
-use OCP\Files\IRootFolder;
-
-/**
- * Class Root
- *
- * Hooks available in scope \OC\Files
- * - preWrite(\OCP\Files\Node $node)
- * - postWrite(\OCP\Files\Node $node)
- * - preCreate(\OCP\Files\Node $node)
- * - postCreate(\OCP\Files\Node $node)
- * - preDelete(\OCP\Files\Node $node)
- * - postDelete(\OCP\Files\Node $node)
- * - preTouch(\OC\FilesP\Node $node, int $mtime)
- * - postTouch(\OCP\Files\Node $node)
- * - preCopy(\OCP\Files\Node $source, \OCP\Files\Node $target)
- * - postCopy(\OCP\Files\Node $source, \OCP\Files\Node $target)
- * - preRename(\OCP\Files\Node $source, \OCP\Files\Node $target)
- * - postRename(\OCP\Files\Node $source, \OCP\Files\Node $target)
- *
- * @package OC\Files\Node
- */
-class Root extends Folder implements IRootFolder {
-
-	/**
-	 * @var \OC\Files\Mount\Manager $mountManager
-	 */
-	private $mountManager;
-
-	/**
-	 * @var \OC\Hooks\PublicEmitter
-	 */
-	private $emitter;
-
-	/**
-	 * @var \OC\User\User $user
-	 */
-	private $user;
-
-	/**
-	 * @param \OC\Files\Mount\Manager $manager
-	 * @param \OC\Files\View $view
-	 * @param \OC\User\User|null $user
-	 */
-	public function __construct($manager, $view, $user) {
-		parent::__construct($this, $view, '');
-		$this->mountManager = $manager;
-		$this->user = $user;
-		$this->emitter = new PublicEmitter();
-	}
-
-	/**
-	 * Get the user for which the filesystem is setup
-	 *
-	 * @return \OC\User\User
-	 */
-	public function getUser() {
-		return $this->user;
-	}
-
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 */
-	public function listen($scope, $method, callable $callback) {
-		$this->emitter->listen($scope, $method, $callback);
-	}
-
-	/**
-	 * @param string $scope optional
-	 * @param string $method optional
-	 * @param callable $callback optional
-	 */
-	public function removeListener($scope = null, $method = null, callable $callback = null) {
-		$this->emitter->removeListener($scope, $method, $callback);
-	}
-
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param Node[] $arguments
-	 */
-	public function emit($scope, $method, $arguments = array()) {
-		$this->emitter->emit($scope, $method, $arguments);
-	}
-
-	/**
-	 * @param \OC\Files\Storage\Storage $storage
-	 * @param string $mountPoint
-	 * @param array $arguments
-	 */
-	public function mount($storage, $mountPoint, $arguments = array()) {
-		$mount = new MountPoint($storage, $mountPoint, $arguments);
-		$this->mountManager->addMount($mount);
-	}
-
-	/**
-	 * @param string $mountPoint
-	 * @return \OC\Files\Mount\MountPoint
-	 */
-	public function getMount($mountPoint) {
-		return $this->mountManager->find($mountPoint);
-	}
-
-	/**
-	 * @param string $mountPoint
-	 * @return \OC\Files\Mount\MountPoint[]
-	 */
-	public function getMountsIn($mountPoint) {
-		return $this->mountManager->findIn($mountPoint);
-	}
-
-	/**
-	 * @param string $storageId
-	 * @return \OC\Files\Mount\MountPoint[]
-	 */
-	public function getMountByStorageId($storageId) {
-		return $this->mountManager->findByStorageId($storageId);
-	}
-
-	/**
-	 * @param int $numericId
-	 * @return MountPoint[]
-	 */
-	public function getMountByNumericStorageId($numericId) {
-		return $this->mountManager->findByNumericId($numericId);
-	}
-
-	/**
-	 * @param \OC\Files\Mount\MountPoint $mount
-	 */
-	public function unMount($mount) {
-		$this->mountManager->remove($mount);
-	}
-
-	/**
-	 * @param string $path
-	 * @throws \OCP\Files\NotFoundException
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return string
-	 */
-	public function get($path) {
-		$path = $this->normalizePath($path);
-		if ($this->isValidPath($path)) {
-			$fullPath = $this->getFullPath($path);
-			$fileInfo = $this->view->getFileInfo($fullPath);
-			if ($fileInfo) {
-				return $this->createNode($fullPath, $fileInfo);
-			} else {
-				throw new NotFoundException($path);
-			}
-		} else {
-			throw new NotPermittedException();
-		}
-	}
-
-	//most operations can't be done on the root
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function rename($targetPath) {
-		throw new NotPermittedException();
-	}
-
-	public function delete() {
-		throw new NotPermittedException();
-	}
-
-	/**
-	 * @param string $targetPath
-	 * @throws \OCP\Files\NotPermittedException
-	 * @return \OC\Files\Node\Node
-	 */
-	public function copy($targetPath) {
-		throw new NotPermittedException();
-	}
-
-	/**
-	 * @param int $mtime
-	 * @throws \OCP\Files\NotPermittedException
-	 */
-	public function touch($mtime = null) {
-		throw new NotPermittedException();
-	}
-
-	/**
-	 * @return \OC\Files\Storage\Storage
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function getStorage() {
-		throw new NotFoundException();
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getPath() {
-		return '/';
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getInternalPath() {
-		return '';
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getId() {
-		return null;
-	}
-
-	/**
-	 * @return array
-	 */
-	public function stat() {
-		return null;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getMTime() {
-		return null;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getSize() {
-		return null;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getEtag() {
-		return null;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getPermissions() {
-		return \OCP\Constants::PERMISSION_CREATE;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isReadable() {
-		return false;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isUpdateable() {
-		return false;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isDeletable() {
-		return false;
-	}
-
-	/**
-	 * @return bool
-	 */
-	public function isShareable() {
-		return false;
-	}
-
-	/**
-	 * @return Node
-	 * @throws \OCP\Files\NotFoundException
-	 */
-	public function getParent() {
-		throw new NotFoundException();
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getName() {
-		return '';
-	}
-
-	/**
-	 * Returns a view to user's files folder
-	 *
-	 * @param String $userId user ID
-	 * @return \OCP\Files\Folder
-	 */
-	public function getUserFolder($userId) {
-		\OC\Files\Filesystem::initMountPoints($userId);
-		$dir = '/' . $userId;
-		$folder = null;
-
-		try {
-			$folder = $this->get($dir);
-		} catch (NotFoundException $e) {
-			$folder = $this->newFolder($dir);
-		}
-
-		$dir = '/files';
-		try {
-			$folder = $folder->get($dir);
-		} catch (NotFoundException $e) {
-			$folder = $folder->newFolder($dir);
-			\OC_Util::copySkeleton($userId, $folder);
-		}
-
-		return $folder;
-
-	}
-}
diff --git a/lib/private/files/objectstore/homeobjectstorestorage.php b/lib/private/files/objectstore/homeobjectstorestorage.php
deleted file mode 100644
index 6a330e2dab3..00000000000
--- a/lib/private/files/objectstore/homeobjectstorestorage.php
+++ /dev/null
@@ -1,68 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\ObjectStore;
-
-use OC\User\User;
-
-class HomeObjectStoreStorage extends ObjectStoreStorage implements \OCP\Files\IHomeStorage {
-
-	/**
-	 * The home user storage requires a user object to create a unique storage id
-	 * @param array $params
-	 */
-	public function __construct($params) {
-		if ( ! isset($params['user']) || ! $params['user'] instanceof User) {
-			throw new \Exception('missing user object in parameters');
-		}
-		$this->user = $params['user'];
-		parent::__construct($params);
-	}
-
-	public function getId () {
-		return 'object::user:' . $this->user->getUID();
-	}
-
-	/**
-	 * get the owner of a path
-	 *
-	 * @param string $path The path to get the owner
-	 * @return false|string uid
-	 */
-	public function getOwner($path) {
-		if (is_object($this->user)) {
-			return $this->user->getUID();
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path, optional
-	 * @return \OC\User\User
-	 */
-	public function getUser($path = null) {
-		return $this->user;
-	}
-
-
-}
\ No newline at end of file
diff --git a/lib/private/files/objectstore/noopscanner.php b/lib/private/files/objectstore/noopscanner.php
deleted file mode 100644
index f5316175ecf..00000000000
--- a/lib/private/files/objectstore/noopscanner.php
+++ /dev/null
@@ -1,79 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\ObjectStore;
-use \OC\Files\Cache\Scanner;
-use \OC\Files\Storage\Storage;
-
-class NoopScanner extends Scanner {
-
-	public function __construct(Storage $storage) {
-		//we don't need the storage, so do nothing here
-	}
-
-	/**
-	 * scan a single file and store it in the cache
-	 *
-	 * @param string $file
-	 * @param int $reuseExisting
-	 * @param int $parentId
-	 * @param array|null $cacheData existing data in the cache for the file to be scanned
-	 * @return array an array of metadata of the scanned file
-	 */
-	public function scanFile($file, $reuseExisting = 0, $parentId = -1, $cacheData = null, $lock = true) {
-		return array();
-	}
-
-	/**
-	 * scan a folder and all it's children
-	 *
-	 * @param string $path
-	 * @param bool $recursive
-	 * @param int $reuse
-	 * @return array with the meta data of the scanned file or folder
-	 */
-	public function scan($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $lock = true) {
-		return array();
-	}
-
-	/**
-	 * scan all the files and folders in a folder
-	 *
-	 * @param string $path
-	 * @param bool $recursive
-	 * @param int $reuse
-	 * @param array $folderData existing cache data for the folder to be scanned
-	 * @return int the size of the scanned folder or -1 if the size is unknown at this stage
-	 */
-	protected function scanChildren($path, $recursive = self::SCAN_RECURSIVE, $reuse = -1, $folderData = null, $lock = true) {
-		return 0;
-	}
-
-	/**
-	 * walk over any folders that are not fully scanned yet and scan them
-	 */
-	public function backgroundScan() {
-		//noop
-	}
-}
diff --git a/lib/private/files/objectstore/objectstorestorage.php b/lib/private/files/objectstore/objectstorestorage.php
deleted file mode 100644
index 8c643dbdcc7..00000000000
--- a/lib/private/files/objectstore/objectstorestorage.php
+++ /dev/null
@@ -1,407 +0,0 @@
-<?php
-/**
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\ObjectStore;
-
-use Icewind\Streams\IteratorDirectory;
-use OC\Files\Cache\CacheEntry;
-use OCP\Files\ObjectStore\IObjectStore;
-
-class ObjectStoreStorage extends \OC\Files\Storage\Common {
-
-	/**
-	 * @var array
-	 */
-	private static $tmpFiles = array();
-	/**
-	 * @var \OCP\Files\ObjectStore\IObjectStore $objectStore
-	 */
-	protected $objectStore;
-	/**
-	 * @var string $id
-	 */
-	protected $id;
-	/**
-	 * @var \OC\User\User $user
-	 */
-	protected $user;
-
-	public function __construct($params) {
-		if (isset($params['objectstore']) && $params['objectstore'] instanceof IObjectStore) {
-			$this->objectStore = $params['objectstore'];
-		} else {
-			throw new \Exception('missing IObjectStore instance');
-		}
-		if (isset($params['storageid'])) {
-			$this->id = 'object::store:' . $params['storageid'];
-		} else {
-			$this->id = 'object::store:' . $this->objectStore->getStorageId();
-		}
-		//initialize cache with root directory in cache
-		if (!$this->is_dir('/')) {
-			$this->mkdir('/');
-		}
-	}
-
-	public function mkdir($path) {
-		$path = $this->normalizePath($path);
-
-		if ($this->file_exists($path)) {
-			return false;
-		}
-
-		$mTime = time();
-		$data = [
-			'mimetype' => 'httpd/unix-directory',
-			'size' => 0,
-			'mtime' => $mTime,
-			'storage_mtime' => $mTime,
-			'permissions' => \OCP\Constants::PERMISSION_ALL,
-		];
-		if ($path === '') {
-			//create root on the fly
-			$data['etag'] = $this->getETag('');
-			$this->getCache()->put('', $data);
-			return true;
-		} else {
-			// if parent does not exist, create it
-			$parent = $this->normalizePath(dirname($path));
-			$parentType = $this->filetype($parent);
-			if ($parentType === false) {
-				if (!$this->mkdir($parent)) {
-					// something went wrong
-					return false;
-				}
-			} else if ($parentType === 'file') {
-				// parent is a file
-				return false;
-			}
-			// finally create the new dir
-			$mTime = time(); // update mtime
-			$data['mtime'] = $mTime;
-			$data['storage_mtime'] = $mTime;
-			$data['etag'] = $this->getETag($path);
-			$this->getCache()->put($path, $data);
-			return true;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	private function normalizePath($path) {
-		$path = trim($path, '/');
-		//FIXME why do we sometimes get a path like 'files//username'?
-		$path = str_replace('//', '/', $path);
-
-		// dirname('/folder') returns '.' but internally (in the cache) we store the root as ''
-		if (!$path || $path === '.') {
-			$path = '';
-		}
-
-		return $path;
-	}
-
-	/**
-	 * Object Stores use a NoopScanner because metadata is directly stored in
-	 * the file cache and cannot really scan the filesystem. The storage passed in is not used anywhere.
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the scanner
-	 * @return \OC\Files\ObjectStore\NoopScanner
-	 */
-	public function getScanner($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->scanner)) {
-			$this->scanner = new NoopScanner($storage);
-		}
-		return $this->scanner;
-	}
-
-	public function getId() {
-		return $this->id;
-	}
-
-	public function rmdir($path) {
-		$path = $this->normalizePath($path);
-
-		if (!$this->is_dir($path)) {
-			return false;
-		}
-
-		$this->rmObjects($path);
-
-		$this->getCache()->remove($path);
-
-		return true;
-	}
-
-	private function rmObjects($path) {
-		$children = $this->getCache()->getFolderContents($path);
-		foreach ($children as $child) {
-			if ($child['mimetype'] === 'httpd/unix-directory') {
-				$this->rmObjects($child['path']);
-			} else {
-				$this->unlink($child['path']);
-			}
-		}
-	}
-
-	public function unlink($path) {
-		$path = $this->normalizePath($path);
-		$stat = $this->stat($path);
-
-		if ($stat && isset($stat['fileid'])) {
-			if ($stat['mimetype'] === 'httpd/unix-directory') {
-				return $this->rmdir($path);
-			}
-			try {
-				$this->objectStore->deleteObject($this->getURN($stat['fileid']));
-			} catch (\Exception $ex) {
-				if ($ex->getCode() !== 404) {
-					\OCP\Util::writeLog('objectstore', 'Could not delete object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-					return false;
-				} else {
-					//removing from cache is ok as it does not exist in the objectstore anyway
-				}
-			}
-			$this->getCache()->remove($path);
-			return true;
-		}
-		return false;
-	}
-
-	public function stat($path) {
-		$path = $this->normalizePath($path);
-		$cacheEntry = $this->getCache()->get($path);
-		if ($cacheEntry instanceof CacheEntry) {
-			return $cacheEntry->getData();
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * Override this method if you need a different unique resource identifier for your object storage implementation.
-	 * The default implementations just appends the fileId to 'urn:oid:'. Make sure the URN is unique over all users.
-	 * You may need a mapping table to store your URN if it cannot be generated from the fileid.
-	 *
-	 * @param int $fileId the fileid
-	 * @return null|string the unified resource name used to identify the object
-	 */
-	protected function getURN($fileId) {
-		if (is_numeric($fileId)) {
-			return 'urn:oid:' . $fileId;
-		}
-		return null;
-	}
-
-	public function opendir($path) {
-		$path = $this->normalizePath($path);
-
-		try {
-			$files = array();
-			$folderContents = $this->getCache()->getFolderContents($path);
-			foreach ($folderContents as $file) {
-				$files[] = $file['name'];
-			}
-
-			return IteratorDirectory::wrap($files);
-		} catch (\Exception $e) {
-			\OCP\Util::writeLog('objectstore', $e->getMessage(), \OCP\Util::ERROR);
-			return false;
-		}
-	}
-
-	public function filetype($path) {
-		$path = $this->normalizePath($path);
-		$stat = $this->stat($path);
-		if ($stat) {
-			if ($stat['mimetype'] === 'httpd/unix-directory') {
-				return 'dir';
-			}
-			return 'file';
-		} else {
-			return false;
-		}
-	}
-
-	public function fopen($path, $mode) {
-		$path = $this->normalizePath($path);
-
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				$stat = $this->stat($path);
-				if (is_array($stat)) {
-					try {
-						return $this->objectStore->readObject($this->getURN($stat['fileid']));
-					} catch (\Exception $ex) {
-						\OCP\Util::writeLog('objectstore', 'Could not get object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-						return false;
-					}
-				} else {
-					return false;
-				}
-			case 'w':
-			case 'wb':
-			case 'a':
-			case 'ab':
-			case 'r+':
-			case 'w+':
-			case 'wb+':
-			case 'a+':
-			case 'x':
-			case 'x+':
-			case 'c':
-			case 'c+':
-				if (strrpos($path, '.') !== false) {
-					$ext = substr($path, strrpos($path, '.'));
-				} else {
-					$ext = '';
-				}
-				$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($ext);
-				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
-				if ($this->file_exists($path)) {
-					$source = $this->fopen($path, 'r');
-					file_put_contents($tmpFile, $source);
-				}
-				self::$tmpFiles[$tmpFile] = $path;
-
-				return fopen('close://' . $tmpFile, $mode);
-		}
-		return false;
-	}
-
-	public function file_exists($path) {
-		$path = $this->normalizePath($path);
-		return (bool)$this->stat($path);
-	}
-
-	public function rename($source, $target) {
-		$source = $this->normalizePath($source);
-		$target = $this->normalizePath($target);
-		$this->remove($target);
-		$this->getCache()->move($source, $target);
-		$this->touch(dirname($target));
-		return true;
-	}
-
-	public function getMimeType($path) {
-		$path = $this->normalizePath($path);
-		$stat = $this->stat($path);
-		if (is_array($stat)) {
-			return $stat['mimetype'];
-		} else {
-			return false;
-		}
-	}
-
-	public function touch($path, $mtime = null) {
-		if (is_null($mtime)) {
-			$mtime = time();
-		}
-
-		$path = $this->normalizePath($path);
-		$dirName = dirname($path);
-		$parentExists = $this->is_dir($dirName);
-		if (!$parentExists) {
-			return false;
-		}
-
-		$stat = $this->stat($path);
-		if (is_array($stat)) {
-			// update existing mtime in db
-			$stat['mtime'] = $mtime;
-			$this->getCache()->update($stat['fileid'], $stat);
-		} else {
-			$mimeType = \OC::$server->getMimeTypeDetector()->detectPath($path);
-			// create new file
-			$stat = array(
-				'etag' => $this->getETag($path),
-				'mimetype' => $mimeType,
-				'size' => 0,
-				'mtime' => $mtime,
-				'storage_mtime' => $mtime,
-				'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
-			);
-			$fileId = $this->getCache()->put($path, $stat);
-			try {
-				//read an empty file from memory
-				$this->objectStore->writeObject($this->getURN($fileId), fopen('php://memory', 'r'));
-			} catch (\Exception $ex) {
-				$this->getCache()->remove($path);
-				\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-				return false;
-			}
-		}
-		return true;
-	}
-
-	public function writeBack($tmpFile) {
-		if (!isset(self::$tmpFiles[$tmpFile])) {
-			return;
-		}
-
-		$path = self::$tmpFiles[$tmpFile];
-		$stat = $this->stat($path);
-		if (empty($stat)) {
-			// create new file
-			$stat = array(
-				'permissions' => \OCP\Constants::PERMISSION_ALL - \OCP\Constants::PERMISSION_CREATE,
-			);
-		}
-		// update stat with new data
-		$mTime = time();
-		$stat['size'] = filesize($tmpFile);
-		$stat['mtime'] = $mTime;
-		$stat['storage_mtime'] = $mTime;
-		$stat['mimetype'] = \OC::$server->getMimeTypeDetector()->detect($tmpFile);
-		$stat['etag'] = $this->getETag($path);
-
-		$fileId = $this->getCache()->put($path, $stat);
-		try {
-			//upload to object storage
-			$this->objectStore->writeObject($this->getURN($fileId), fopen($tmpFile, 'r'));
-		} catch (\Exception $ex) {
-			$this->getCache()->remove($path);
-			\OCP\Util::writeLog('objectstore', 'Could not create object: ' . $ex->getMessage(), \OCP\Util::ERROR);
-			throw $ex; // make this bubble up
-		}
-	}
-
-	/**
-	 * external changes are not supported, exclusive access to the object storage is assumed
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return false
-	 */
-	public function hasUpdated($path, $time) {
-		return false;
-	}
-}
diff --git a/lib/private/files/objectstore/swift.php b/lib/private/files/objectstore/swift.php
deleted file mode 100644
index 4af09dca254..00000000000
--- a/lib/private/files/objectstore/swift.php
+++ /dev/null
@@ -1,154 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\ObjectStore;
-
-use Guzzle\Http\Exception\ClientErrorResponseException;
-use OCP\Files\ObjectStore\IObjectStore;
-use OpenCloud\OpenStack;
-use OpenCloud\Rackspace;
-
-class Swift implements IObjectStore {
-	/**
-	 * @var \OpenCloud\OpenStack
-	 */
-	private $client;
-
-	/**
-	 * @var array
-	 */
-	private $params;
-
-	/**
-	 * @var \OpenCloud\ObjectStore\Service
-	 */
-	private $objectStoreService;
-
-	/**
-	 * @var \OpenCloud\ObjectStore\Resource\Container
-	 */
-	private $container;
-
-	public function __construct($params) {
-		if (!isset($params['container'])) {
-			$params['container'] = 'owncloud';
-		}
-		if (!isset($params['autocreate'])) {
-			// should only be true for tests
-			$params['autocreate'] = false;
-		}
-
-		if (isset($params['apiKey'])) {
-			$this->client = new Rackspace($params['url'], $params);
-		} else {
-			$this->client = new OpenStack($params['url'], $params);
-		}
-		$this->params = $params;
-	}
-
-	protected function init() {
-		if ($this->container) {
-			return;
-		}
-
-		// the OpenCloud client library will default to 'cloudFiles' if $serviceName is null
-		$serviceName = null;
-		if (isset($this->params['serviceName'])) {
-			$serviceName = $this->params['serviceName'];
-		}
-
-		// the OpenCloud client library will default to 'publicURL' if $urlType is null
-		$urlType = null;
-		if (isset($this->params['urlType'])) {
-			$urlType = $this->params['urlType'];
-		}
-		$this->objectStoreService = $this->client->objectStoreService($serviceName, $this->params['region'], $urlType);
-
-		try {
-			$this->container = $this->objectStoreService->getContainer($this->params['container']);
-		} catch (ClientErrorResponseException $ex) {
-			// if the container does not exist and autocreate is true try to create the container on the fly
-			if (isset($this->params['autocreate']) && $this->params['autocreate'] === true) {
-				$this->container = $this->objectStoreService->createContainer($this->params['container']);
-			} else {
-				throw $ex;
-			}
-		}
-	}
-
-	/**
-	 * @return string the container name where objects are stored
-	 */
-	public function getStorageId() {
-		return $this->params['container'];
-	}
-
-	/**
-	 * @param string $urn the unified resource name used to identify the object
-	 * @param resource $stream stream with the data to write
-	 * @throws Exception from openstack lib when something goes wrong
-	 */
-	public function writeObject($urn, $stream) {
-		$this->init();
-		$this->container->uploadObject($urn, $stream);
-	}
-
-	/**
-	 * @param string $urn the unified resource name used to identify the object
-	 * @return resource stream with the read data
-	 * @throws Exception from openstack lib when something goes wrong
-	 */
-	public function readObject($urn) {
-		$this->init();
-		$object = $this->container->getObject($urn);
-
-		// we need to keep a reference to objectContent or
-		// the stream will be closed before we can do anything with it
-		/** @var $objectContent \Guzzle\Http\EntityBody * */
-		$objectContent = $object->getContent();
-		$objectContent->rewind();
-
-		$stream = $objectContent->getStream();
-		// save the object content in the context of the stream to prevent it being gc'd until the stream is closed
-		stream_context_set_option($stream, 'swift','content', $objectContent);
-
-		return $stream;
-	}
-
-	/**
-	 * @param string $urn Unified Resource Name
-	 * @return void
-	 * @throws Exception from openstack lib when something goes wrong
-	 */
-	public function deleteObject($urn) {
-		$this->init();
-		// see https://github.com/rackspace/php-opencloud/issues/243#issuecomment-30032242
-		$this->container->dataObject()->setName($urn)->delete();
-	}
-
-	public function deleteContainer($recursive = false) {
-		$this->init();
-		$this->container->delete($recursive);
-	}
-
-}
diff --git a/lib/private/files/storage/common.php b/lib/private/files/storage/common.php
deleted file mode 100644
index 3a811b312c6..00000000000
--- a/lib/private/files/storage/common.php
+++ /dev/null
@@ -1,697 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author hkjolhede <hkjolhede@gmail.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Martin Mattel <martin.mattel@diemattels.at>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Sam Tuke <mail@samtuke.com>
- * @author scambra <sergio@entrecables.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-use OC\Files\Cache\Cache;
-use OC\Files\Cache\Propagator;
-use OC\Files\Cache\Scanner;
-use OC\Files\Cache\Updater;
-use OC\Files\Filesystem;
-use OC\Files\Cache\Watcher;
-use OCP\Files\FileNameTooLongException;
-use OCP\Files\InvalidCharacterInPathException;
-use OCP\Files\InvalidPathException;
-use OCP\Files\ReservedWordException;
-use OCP\Files\Storage\ILockingStorage;
-use OCP\Lock\ILockingProvider;
-
-/**
- * Storage backend class for providing common filesystem operation methods
- * which are not storage-backend specific.
- *
- * \OC\Files\Storage\Common is never used directly; it is extended by all other
- * storage backends, where its methods may be overridden, and additional
- * (backend-specific) methods are defined.
- *
- * Some \OC\Files\Storage\Common methods call functions which are first defined
- * in classes which extend it, e.g. $this->stat() .
- */
-abstract class Common implements Storage, ILockingStorage {
-
-	use LocalTempFileTrait;
-
-	protected $cache;
-	protected $scanner;
-	protected $watcher;
-	protected $propagator;
-	protected $storageCache;
-	protected $updater;
-
-	protected $mountOptions = [];
-	protected $owner = null;
-
-	public function __construct($parameters) {
-	}
-
-	/**
-	 * Remove a file or folder
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	protected function remove($path) {
-		if ($this->is_dir($path)) {
-			return $this->rmdir($path);
-		} else if ($this->is_file($path)) {
-			return $this->unlink($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function is_dir($path) {
-		return $this->filetype($path) === 'dir';
-	}
-
-	public function is_file($path) {
-		return $this->filetype($path) === 'file';
-	}
-
-	public function filesize($path) {
-		if ($this->is_dir($path)) {
-			return 0; //by definition
-		} else {
-			$stat = $this->stat($path);
-			if (isset($stat['size'])) {
-				return $stat['size'];
-			} else {
-				return 0;
-			}
-		}
-	}
-
-	public function isReadable($path) {
-		// at least check whether it exists
-		// subclasses might want to implement this more thoroughly
-		return $this->file_exists($path);
-	}
-
-	public function isUpdatable($path) {
-		// at least check whether it exists
-		// subclasses might want to implement this more thoroughly
-		// a non-existing file/folder isn't updatable
-		return $this->file_exists($path);
-	}
-
-	public function isCreatable($path) {
-		if ($this->is_dir($path) && $this->isUpdatable($path)) {
-			return true;
-		}
-		return false;
-	}
-
-	public function isDeletable($path) {
-		if ($path === '' || $path === '/') {
-			return false;
-		}
-		$parent = dirname($path);
-		return $this->isUpdatable($parent) && $this->isUpdatable($path);
-	}
-
-	public function isSharable($path) {
-		return $this->isReadable($path);
-	}
-
-	public function getPermissions($path) {
-		$permissions = 0;
-		if ($this->isCreatable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_CREATE;
-		}
-		if ($this->isReadable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_READ;
-		}
-		if ($this->isUpdatable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_UPDATE;
-		}
-		if ($this->isDeletable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_DELETE;
-		}
-		if ($this->isSharable($path)) {
-			$permissions |= \OCP\Constants::PERMISSION_SHARE;
-		}
-		return $permissions;
-	}
-
-	public function filemtime($path) {
-		$stat = $this->stat($path);
-		if (isset($stat['mtime']) && $stat['mtime'] > 0) {
-			return $stat['mtime'];
-		} else {
-			return 0;
-		}
-	}
-
-	public function file_get_contents($path) {
-		$handle = $this->fopen($path, "r");
-		if (!$handle) {
-			return false;
-		}
-		$data = stream_get_contents($handle);
-		fclose($handle);
-		return $data;
-	}
-
-	public function file_put_contents($path, $data) {
-		$handle = $this->fopen($path, "w");
-		$this->removeCachedFile($path);
-		$count = fwrite($handle, $data);
-		fclose($handle);
-		return $count;
-	}
-
-	public function rename($path1, $path2) {
-		$this->remove($path2);
-
-		$this->removeCachedFile($path1);
-		return $this->copy($path1, $path2) and $this->remove($path1);
-	}
-
-	public function copy($path1, $path2) {
-		if ($this->is_dir($path1)) {
-			$this->remove($path2);
-			$dir = $this->opendir($path1);
-			$this->mkdir($path2);
-			while ($file = readdir($dir)) {
-				if (!Filesystem::isIgnoredDir($file)) {
-					if (!$this->copy($path1 . '/' . $file, $path2 . '/' . $file)) {
-						return false;
-					}
-				}
-			}
-			closedir($dir);
-			return true;
-		} else {
-			$source = $this->fopen($path1, 'r');
-			$target = $this->fopen($path2, 'w');
-			list(, $result) = \OC_Helper::streamCopy($source, $target);
-			$this->removeCachedFile($path2);
-			return $result;
-		}
-	}
-
-	public function getMimeType($path) {
-		if ($this->is_dir($path)) {
-			return 'httpd/unix-directory';
-		} elseif ($this->file_exists($path)) {
-			return \OC::$server->getMimeTypeDetector()->detectPath($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function hash($type, $path, $raw = false) {
-		$fh = $this->fopen($path, 'rb');
-		$ctx = hash_init($type);
-		hash_update_stream($ctx, $fh);
-		fclose($fh);
-		return hash_final($ctx, $raw);
-	}
-
-	public function search($query) {
-		return $this->searchInDir($query);
-	}
-
-	public function getLocalFile($path) {
-		return $this->getCachedFile($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $target
-	 */
-	private function addLocalFolder($path, $target) {
-		$dh = $this->opendir($path);
-		if (is_resource($dh)) {
-			while (($file = readdir($dh)) !== false) {
-				if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-					if ($this->is_dir($path . '/' . $file)) {
-						mkdir($target . '/' . $file);
-						$this->addLocalFolder($path . '/' . $file, $target . '/' . $file);
-					} else {
-						$tmp = $this->toTmpFile($path . '/' . $file);
-						rename($tmp, $target . '/' . $file);
-					}
-				}
-			}
-		}
-	}
-
-	/**
-	 * @param string $query
-	 * @param string $dir
-	 * @return array
-	 */
-	protected function searchInDir($query, $dir = '') {
-		$files = array();
-		$dh = $this->opendir($dir);
-		if (is_resource($dh)) {
-			while (($item = readdir($dh)) !== false) {
-				if (\OC\Files\Filesystem::isIgnoredDir($item)) continue;
-				if (strstr(strtolower($item), strtolower($query)) !== false) {
-					$files[] = $dir . '/' . $item;
-				}
-				if ($this->is_dir($dir . '/' . $item)) {
-					$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
-				}
-			}
-		}
-		closedir($dh);
-		return $files;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * The method is only used to check if the cache needs to be updated. Storage backends that don't support checking
-	 * the mtime should always return false here. As a result storage implementations that always return false expect
-	 * exclusive access to the backend and will not pick up files that have been added in a way that circumvents
-	 * ownClouds filesystem.
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->filemtime($path) > $time;
-	}
-
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->cache)) {
-			$storage->cache = new Cache($storage);
-		}
-		return $storage->cache;
-	}
-
-	public function getScanner($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->scanner)) {
-			$storage->scanner = new Scanner($storage);
-		}
-		return $storage->scanner;
-	}
-
-	public function getWatcher($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->watcher)) {
-			$this->watcher = new Watcher($storage);
-			$globalPolicy = \OC::$server->getConfig()->getSystemValue('filesystem_check_changes', Watcher::CHECK_NEVER);
-			$this->watcher->setPolicy((int)$this->getMountOption('filesystem_check_changes', $globalPolicy));
-		}
-		return $this->watcher;
-	}
-
-	/**
-	 * get a propagator instance for the cache
-	 *
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Propagator
-	 */
-	public function getPropagator($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->propagator)) {
-			$storage->propagator = new Propagator($storage);
-		}
-		return $storage->propagator;
-	}
-
-	public function getUpdater($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($storage->updater)) {
-			$storage->updater = new Updater($storage);
-		}
-		return $storage->updater;
-	}
-
-	public function getStorageCache($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->storageCache)) {
-			$this->storageCache = new \OC\Files\Cache\Storage($storage);
-		}
-		return $this->storageCache;
-	}
-
-	/**
-	 * get the owner of a path
-	 *
-	 * @param string $path The path to get the owner
-	 * @return string|false uid or false
-	 */
-	public function getOwner($path) {
-		if ($this->owner === null) {
-			$this->owner = \OC_User::getUser();
-		}
-
-		return $this->owner;
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		return uniqid();
-	}
-
-	/**
-	 * clean a path, i.e. remove all redundant '.' and '..'
-	 * making sure that it can't point to higher than '/'
-	 *
-	 * @param string $path The path to clean
-	 * @return string cleaned path
-	 */
-	public function cleanPath($path) {
-		if (strlen($path) == 0 or $path[0] != '/') {
-			$path = '/' . $path;
-		}
-
-		$output = array();
-		foreach (explode('/', $path) as $chunk) {
-			if ($chunk == '..') {
-				array_pop($output);
-			} else if ($chunk == '.') {
-			} else {
-				$output[] = $chunk;
-			}
-		}
-		return implode('/', $output);
-	}
-
-	/**
-	 * Test a storage for availability
-	 *
-	 * @return bool
-	 */
-	public function test() {
-		if ($this->stat('')) {
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * get the free space in the storage
-	 *
-	 * @param string $path
-	 * @return int|false
-	 */
-	public function free_space($path) {
-		return \OCP\Files\FileInfo::SPACE_UNKNOWN;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function isLocal() {
-		// the common implementation returns a temporary file by
-		// default, which is not local
-		return false;
-	}
-
-	/**
-	 * Check if the storage is an instance of $class or is a wrapper for a storage that is an instance of $class
-	 *
-	 * @param string $class
-	 * @return bool
-	 */
-	public function instanceOfStorage($class) {
-		return is_a($this, $class);
-	}
-
-	/**
-	 * A custom storage implementation can return an url for direct download of a give file.
-	 *
-	 * For now the returned array can hold the parameter url - in future more attributes might follow.
-	 *
-	 * @param string $path
-	 * @return array|false
-	 */
-	public function getDirectDownload($path) {
-		return [];
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function verifyPath($path, $fileName) {
-		if (isset($fileName[255])) {
-			throw new FileNameTooLongException();
-		}
-
-		// NOTE: $path will remain unverified for now
-		if (\OC_Util::runningOnWindows()) {
-			$this->verifyWindowsPath($fileName);
-		} else {
-			$this->verifyPosixPath($fileName);
-		}
-	}
-
-	/**
-	 * https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx
-	 * @param string $fileName
-	 * @throws InvalidPathException
-	 */
-	protected function verifyWindowsPath($fileName) {
-		$fileName = trim($fileName);
-		$this->scanForInvalidCharacters($fileName, "\\/<>:\"|?*");
-		$reservedNames = ['CON', 'PRN', 'AUX', 'NUL', 'COM1', 'COM2', 'COM3', 'COM4', 'COM5', 'COM6', 'COM7', 'COM8', 'COM9', 'LPT1', 'LPT2', 'LPT3', 'LPT4', 'LPT5', 'LPT6', 'LPT7', 'LPT8', 'LPT9'];
-		if (in_array(strtoupper($fileName), $reservedNames)) {
-			throw new ReservedWordException();
-		}
-	}
-
-	/**
-	 * @param string $fileName
-	 * @throws InvalidPathException
-	 */
-	protected function verifyPosixPath($fileName) {
-		$fileName = trim($fileName);
-		$this->scanForInvalidCharacters($fileName, "\\/");
-		$reservedNames = ['*'];
-		if (in_array($fileName, $reservedNames)) {
-			throw new ReservedWordException();
-		}
-	}
-
-	/**
-	 * @param string $fileName
-	 * @param string $invalidChars
-	 * @throws InvalidPathException
-	 */
-	private function scanForInvalidCharacters($fileName, $invalidChars) {
-		foreach (str_split($invalidChars) as $char) {
-			if (strpos($fileName, $char) !== false) {
-				throw new InvalidCharacterInPathException();
-			}
-		}
-
-		$sanitizedFileName = filter_var($fileName, FILTER_UNSAFE_RAW, FILTER_FLAG_STRIP_LOW);
-		if ($sanitizedFileName !== $fileName) {
-			throw new InvalidCharacterInPathException();
-		}
-	}
-
-	/**
-	 * @param array $options
-	 */
-	public function setMountOptions(array $options) {
-		$this->mountOptions = $options;
-	}
-
-	/**
-	 * @param string $name
-	 * @param mixed $default
-	 * @return mixed
-	 */
-	public function getMountOption($name, $default = null) {
-		return isset($this->mountOptions[$name]) ? $this->mountOptions[$name] : $default;
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @return bool
-	 */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) {
-		if ($sourceStorage === $this) {
-			return $this->copy($sourceInternalPath, $targetInternalPath);
-		}
-
-		if ($sourceStorage->is_dir($sourceInternalPath)) {
-			$dh = $sourceStorage->opendir($sourceInternalPath);
-			$result = $this->mkdir($targetInternalPath);
-			if (is_resource($dh)) {
-				while ($result and ($file = readdir($dh)) !== false) {
-					if (!Filesystem::isIgnoredDir($file)) {
-						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file);
-					}
-				}
-			}
-		} else {
-			$source = $sourceStorage->fopen($sourceInternalPath, 'r');
-			// TODO: call fopen in a way that we execute again all storage wrappers
-			// to avoid that we bypass storage wrappers which perform important actions
-			// for this operation. Same is true for all other operations which
-			// are not the same as the original one.Once this is fixed we also
-			// need to adjust the encryption wrapper.
-			$target = $this->fopen($targetInternalPath, 'w');
-			list(, $result) = \OC_Helper::streamCopy($source, $target);
-			if ($result and $preserveMtime) {
-				$this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
-			}
-			fclose($source);
-			fclose($target);
-
-			if (!$result) {
-				// delete partially written target file
-				$this->unlink($targetInternalPath);
-				// delete cache entry that was created by fopen
-				$this->getCache()->remove($targetInternalPath);
-			}
-		}
-		return (bool)$result;
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-
-		if (!$sourceStorage->isDeletable($sourceInternalPath)) {
-			return false;
-		}
-
-		$result = $this->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, true);
-		if ($result) {
-			if ($sourceStorage->is_dir($sourceInternalPath)) {
-				$result &= $sourceStorage->rmdir($sourceInternalPath);
-			} else {
-				$result &= $sourceStorage->unlink($sourceInternalPath);
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * @inheritdoc
-	 */
-	public function getMetaData($path) {
-		$permissions = $this->getPermissions($path);
-		if (!$permissions & \OCP\Constants::PERMISSION_READ) {
-			//can't read, nothing we can do
-			return null;
-		}
-
-		$data = [];
-		$data['mimetype'] = $this->getMimeType($path);
-		$data['mtime'] = $this->filemtime($path);
-		if ($data['mimetype'] == 'httpd/unix-directory') {
-			$data['size'] = -1; //unknown
-		} else {
-			$data['size'] = $this->filesize($path);
-		}
-		$data['etag'] = $this->getETag($path);
-		$data['storage_mtime'] = $data['mtime'];
-		$data['permissions'] = $permissions;
-
-		return $data;
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type, ILockingProvider $provider) {
-		$provider->acquireLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function releaseLock($path, $type, ILockingProvider $provider) {
-		$provider->releaseLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function changeLock($path, $type, ILockingProvider $provider) {
-		$provider->changeLock('files/' . md5($this->getId() . '::' . trim($path, '/')), $type);
-	}
-
-	/**
-	 * @return array [ available, last_checked ]
-	 */
-	public function getAvailability() {
-		return $this->getStorageCache()->getAvailability();
-	}
-
-	/**
-	 * @param bool $isAvailable
-	 */
-	public function setAvailability($isAvailable) {
-		$this->getStorageCache()->setAvailability($isAvailable);
-	}
-}
diff --git a/lib/private/files/storage/commontest.php b/lib/private/files/storage/commontest.php
deleted file mode 100644
index 0047a51169c..00000000000
--- a/lib/private/files/storage/commontest.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-/**
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Christopher Schäpers <kondou@ts.unde.re>
- * @author Felix Moeller <mail@felixmoeller.de>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-/**
- * test implementation for \OC\Files\Storage\Common with \OC\Files\Storage\Local
- */
-
-namespace OC\Files\Storage;
-
-class CommonTest extends \OC\Files\Storage\Common{
-	/**
-	 * underlying local storage used for missing functions
-	 * @var \OC\Files\Storage\Local
-	 */
-	private $storage;
-
-	public function __construct($params) {
-		$this->storage=new \OC\Files\Storage\Local($params);
-	}
-
-	public function getId(){
-		return 'test::'.$this->storage->getId();
-	}
-	public function mkdir($path) {
-		return $this->storage->mkdir($path);
-	}
-	public function rmdir($path) {
-		return $this->storage->rmdir($path);
-	}
-	public function opendir($path) {
-		return $this->storage->opendir($path);
-	}
-	public function stat($path) {
-		return $this->storage->stat($path);
-	}
-	public function filetype($path) {
-		return @$this->storage->filetype($path);
-	}
-	public function isReadable($path) {
-		return $this->storage->isReadable($path);
-	}
-	public function isUpdatable($path) {
-		return $this->storage->isUpdatable($path);
-	}
-	public function file_exists($path) {
-		return $this->storage->file_exists($path);
-	}
-	public function unlink($path) {
-		return $this->storage->unlink($path);
-	}
-	public function fopen($path, $mode) {
-		return $this->storage->fopen($path, $mode);
-	}
-	public function free_space($path) {
-		return $this->storage->free_space($path);
-	}
-	public function touch($path, $mtime=null) {
-		return $this->storage->touch($path, $mtime);
-	}
-}
diff --git a/lib/private/files/storage/dav.php b/lib/private/files/storage/dav.php
deleted file mode 100644
index 8eebea1f3ba..00000000000
--- a/lib/private/files/storage/dav.php
+++ /dev/null
@@ -1,817 +0,0 @@
-<?php
-/**
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Carlos Cerrillo <ccerrillo@gmail.com>
- * @author Felix Moeller <mail@felixmoeller.de>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Philipp Kapfer <philipp.kapfer@gmx.at>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-use Exception;
-use GuzzleHttp\Exception\RequestException;
-use GuzzleHttp\Message\ResponseInterface;
-use OC\Files\Filesystem;
-use OC\Files\Stream\Close;
-use Icewind\Streams\IteratorDirectory;
-use OC\MemCache\ArrayCache;
-use OCP\AppFramework\Http;
-use OCP\Constants;
-use OCP\Files;
-use OCP\Files\FileInfo;
-use OCP\Files\StorageInvalidException;
-use OCP\Files\StorageNotAvailableException;
-use OCP\Util;
-use Sabre\DAV\Client;
-use Sabre\DAV\Exception\NotFound;
-use Sabre\DAV\Xml\Property\ResourceType;
-use Sabre\HTTP\ClientException;
-use Sabre\HTTP\ClientHttpException;
-
-/**
- * Class DAV
- *
- * @package OC\Files\Storage
- */
-class DAV extends Common {
-	/** @var string */
-	protected $password;
-	/** @var string */
-	protected $user;
-	/** @var string */
-	protected $host;
-	/** @var bool */
-	protected $secure;
-	/** @var string */
-	protected $root;
-	/** @var string */
-	protected $certPath;
-	/** @var bool */
-	protected $ready;
-	/** @var Client */
-	private $client;
-	/** @var ArrayCache */
-	private $statCache;
-	/** @var array */
-	private static $tempFiles = [];
-	/** @var \OCP\Http\Client\IClientService */
-	private $httpClientService;
-
-	/**
-	 * @param array $params
-	 * @throws \Exception
-	 */
-	public function __construct($params) {
-		$this->statCache = new ArrayCache();
-		$this->httpClientService = \OC::$server->getHTTPClientService();
-		if (isset($params['host']) && isset($params['user']) && isset($params['password'])) {
-			$host = $params['host'];
-			//remove leading http[s], will be generated in createBaseUri()
-			if (substr($host, 0, 8) == "https://") $host = substr($host, 8);
-			else if (substr($host, 0, 7) == "http://") $host = substr($host, 7);
-			$this->host = $host;
-			$this->user = $params['user'];
-			$this->password = $params['password'];
-			if (isset($params['secure'])) {
-				if (is_string($params['secure'])) {
-					$this->secure = ($params['secure'] === 'true');
-				} else {
-					$this->secure = (bool)$params['secure'];
-				}
-			} else {
-				$this->secure = false;
-			}
-			if ($this->secure === true) {
-				// inject mock for testing
-				$certPath = \OC_User::getHome(\OC_User::getUser()) . '/files_external/rootcerts.crt';
-				if (file_exists($certPath)) {
-					$this->certPath = $certPath;
-				}
-			}
-			$this->root = isset($params['root']) ? $params['root'] : '/';
-			if (!$this->root || $this->root[0] != '/') {
-				$this->root = '/' . $this->root;
-			}
-			if (substr($this->root, -1, 1) != '/') {
-				$this->root .= '/';
-			}
-		} else {
-			throw new \Exception('Invalid webdav storage configuration');
-		}
-	}
-
-	private function init() {
-		if ($this->ready) {
-			return;
-		}
-		$this->ready = true;
-
-		$settings = array(
-			'baseUri' => $this->createBaseUri(),
-			'userName' => $this->user,
-			'password' => $this->password,
-		);
-
-		$proxy = \OC::$server->getConfig()->getSystemValue('proxy', '');
-		if($proxy !== '') {
-			$settings['proxy'] = $proxy;
-		}
-
-		$this->client = new Client($settings);
-		$this->client->setThrowExceptions(true);
-		if ($this->secure === true && $this->certPath) {
-			$this->client->addCurlSetting(CURLOPT_CAINFO, $this->certPath);
-		}
-	}
-
-	/**
-	 * Clear the stat cache
-	 */
-	public function clearStatCache() {
-		$this->statCache->clear();
-	}
-
-	/** {@inheritdoc} */
-	public function getId() {
-		return 'webdav::' . $this->user . '@' . $this->host . '/' . $this->root;
-	}
-
-	/** {@inheritdoc} */
-	public function createBaseUri() {
-		$baseUri = 'http';
-		if ($this->secure) {
-			$baseUri .= 's';
-		}
-		$baseUri .= '://' . $this->host . $this->root;
-		return $baseUri;
-	}
-
-	/** {@inheritdoc} */
-	public function mkdir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$result = $this->simpleResponse('MKCOL', $path, null, 201);
-		if ($result) {
-			$this->statCache->set($path, true);
-		}
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function rmdir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		// FIXME: some WebDAV impl return 403 when trying to DELETE
-		// a non-empty folder
-		$result = $this->simpleResponse('DELETE', $path . '/', null, 204);
-		$this->statCache->clear($path . '/');
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function opendir($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			$response = $this->client->propfind(
-				$this->encodePath($path),
-				array(),
-				1
-			);
-			$id = md5('webdav' . $this->root . $path);
-			$content = array();
-			$files = array_keys($response);
-			array_shift($files); //the first entry is the current directory
-
-			if (!$this->statCache->hasKey($path)) {
-				$this->statCache->set($path, true);
-			}
-			foreach ($files as $file) {
-				$file = urldecode($file);
-				// do not store the real entry, we might not have all properties
-				if (!$this->statCache->hasKey($path)) {
-					$this->statCache->set($file, true);
-				}
-				$file = basename($file);
-				$content[] = $file;
-			}
-			return IteratorDirectory::wrap($content);
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404) {
-				$this->statCache->clear($path . '/');
-				$this->statCache->set($path, false);
-				return false;
-			}
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * Propfind call with cache handling.
-	 *
-	 * First checks if information is cached.
-	 * If not, request it from the server then store to cache.
-	 *
-	 * @param string $path path to propfind
-	 *
-	 * @return array propfind response
-	 *
-	 * @throws NotFound
-	 */
-	protected function propfind($path) {
-		$path = $this->cleanPath($path);
-		$cachedResponse = $this->statCache->get($path);
-		if ($cachedResponse === false) {
-			// we know it didn't exist
-			throw new NotFound();
-		}
-		// we either don't know it, or we know it exists but need more details
-		if (is_null($cachedResponse) || $cachedResponse === true) {
-			$this->init();
-			try {
-				$response = $this->client->propfind(
-					$this->encodePath($path),
-					array(
-						'{DAV:}getlastmodified',
-						'{DAV:}getcontentlength',
-						'{DAV:}getcontenttype',
-						'{http://owncloud.org/ns}permissions',
-						'{http://open-collaboration-services.org/ns}share-permissions',
-						'{DAV:}resourcetype',
-						'{DAV:}getetag',
-					)
-				);
-				$this->statCache->set($path, $response);
-			} catch (NotFound $e) {
-				// remember that this path did not exist
-				$this->statCache->clear($path . '/');
-				$this->statCache->set($path, false);
-				throw $e;
-			}
-		} else {
-			$response = $cachedResponse;
-		}
-		return $response;
-	}
-
-	/** {@inheritdoc} */
-	public function filetype($path) {
-		try {
-			$response = $this->propfind($path);
-			$responseType = array();
-			if (isset($response["{DAV:}resourcetype"])) {
-				/** @var ResourceType[] $response */
-				$responseType = $response["{DAV:}resourcetype"]->getValue();
-			}
-			return (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404) {
-				return false;
-			}
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function file_exists($path) {
-		try {
-			$path = $this->cleanPath($path);
-			$cachedState = $this->statCache->get($path);
-			if ($cachedState === false) {
-				// we know the file doesn't exist
-				return false;
-			} else if (!is_null($cachedState)) {
-				return true;
-			}
-			// need to get from server
-			$this->propfind($path);
-			return true; //no 404 exception
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404) {
-				return false;
-			}
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function unlink($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$result = $this->simpleResponse('DELETE', $path, null, 204);
-		$this->statCache->clear($path . '/');
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/** {@inheritdoc} */
-	public function fopen($path, $mode) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				try {
-					$response = $this->httpClientService
-							->newClient()
-							->get($this->createBaseUri() . $this->encodePath($path), [
-									'auth' => [$this->user, $this->password],
-									'stream' => true
-							]);
-				} catch (RequestException $e) {
-					if ($e->getResponse() instanceof ResponseInterface
-						&& $e->getResponse()->getStatusCode() === 404) {
-						return false;
-					} else {
-						throw $e;
-					}
-				}
-
-				if ($response->getStatusCode() !== Http::STATUS_OK) {
-					if ($response->getStatusCode() === Http::STATUS_LOCKED) {
-						throw new \OCP\Lock\LockedException($path);
-					} else {
-						Util::writeLog("webdav client", 'Guzzle get returned status code ' . $response->getStatusCode(), Util::ERROR);
-					}
-				}
-
-				return $response->getBody();
-			case 'w':
-			case 'wb':
-			case 'a':
-			case 'ab':
-			case 'r+':
-			case 'w+':
-			case 'wb+':
-			case 'a+':
-			case 'x':
-			case 'x+':
-			case 'c':
-			case 'c+':
-				//emulate these
-				$tempManager = \OC::$server->getTempManager();
-				if (strrpos($path, '.') !== false) {
-					$ext = substr($path, strrpos($path, '.'));
-				} else {
-					$ext = '';
-				}
-				if ($this->file_exists($path)) {
-					if (!$this->isUpdatable($path)) {
-						return false;
-					}
-					if ($mode === 'w' or $mode === 'w+') {
-						$tmpFile = $tempManager->getTemporaryFile($ext);
-					} else {
-						$tmpFile = $this->getCachedFile($path);
-					}
-				} else {
-					if (!$this->isCreatable(dirname($path))) {
-						return false;
-					}
-					$tmpFile = $tempManager->getTemporaryFile($ext);
-				}
-				Close::registerCallback($tmpFile, array($this, 'writeBack'));
-				self::$tempFiles[$tmpFile] = $path;
-				return fopen('close://' . $tmpFile, $mode);
-		}
-	}
-
-	/**
-	 * @param string $tmpFile
-	 */
-	public function writeBack($tmpFile) {
-		if (isset(self::$tempFiles[$tmpFile])) {
-			$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
-			unlink($tmpFile);
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function free_space($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			// TODO: cacheable ?
-			$response = $this->client->propfind($this->encodePath($path), array('{DAV:}quota-available-bytes'));
-			if (isset($response['{DAV:}quota-available-bytes'])) {
-				return (int)$response['{DAV:}quota-available-bytes'];
-			} else {
-				return FileInfo::SPACE_UNKNOWN;
-			}
-		} catch (\Exception $e) {
-			return FileInfo::SPACE_UNKNOWN;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function touch($path, $mtime = null) {
-		$this->init();
-		if (is_null($mtime)) {
-			$mtime = time();
-		}
-		$path = $this->cleanPath($path);
-
-		// if file exists, update the mtime, else create a new empty file
-		if ($this->file_exists($path)) {
-			try {
-				$this->statCache->remove($path);
-				$this->client->proppatch($this->encodePath($path), array('{DAV:}lastmodified' => $mtime));
-			} catch (ClientHttpException $e) {
-				if ($e->getHttpStatus() === 501) {
-					return false;
-				}
-				$this->convertException($e, $path);
-				return false;
-			} catch (\Exception $e) {
-				$this->convertException($e, $path);
-				return false;
-			}
-		} else {
-			$this->file_put_contents($path, '');
-		}
-		return true;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $data
-	 * @return int
-	 */
-	public function file_put_contents($path, $data) {
-		$path = $this->cleanPath($path);
-		$result = parent::file_put_contents($path, $data);
-		$this->statCache->remove($path);
-		return $result;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $target
-	 */
-	protected function uploadFile($path, $target) {
-		$this->init();
-
-		// invalidate
-		$target = $this->cleanPath($target);
-		$this->statCache->remove($target);
-		$source = fopen($path, 'r');
-
-		$this->httpClientService
-			->newClient()
-			->put($this->createBaseUri() . $this->encodePath($target), [
-				'body' => $source,
-				'auth' => [$this->user, $this->password]
-			]);
-
-		$this->removeCachedFile($target);
-	}
-
-	/** {@inheritdoc} */
-	public function rename($path1, $path2) {
-		$this->init();
-		$path1 = $this->cleanPath($path1);
-		$path2 = $this->cleanPath($path2);
-		try {
-			$this->client->request(
-				'MOVE',
-				$this->encodePath($path1),
-				null,
-				array(
-					'Destination' => $this->createBaseUri() . $this->encodePath($path2)
-				)
-			);
-			$this->statCache->clear($path1 . '/');
-			$this->statCache->clear($path2 . '/');
-			$this->statCache->set($path1, false);
-			$this->statCache->set($path2, true);
-			$this->removeCachedFile($path1);
-			$this->removeCachedFile($path2);
-			return true;
-		} catch (\Exception $e) {
-			$this->convertException($e);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function copy($path1, $path2) {
-		$this->init();
-		$path1 = $this->encodePath($this->cleanPath($path1));
-		$path2 = $this->createBaseUri() . $this->encodePath($this->cleanPath($path2));
-		try {
-			$this->client->request('COPY', $path1, null, array('Destination' => $path2));
-			$this->statCache->clear($path2 . '/');
-			$this->statCache->set($path2, true);
-			$this->removeCachedFile($path2);
-			return true;
-		} catch (\Exception $e) {
-			$this->convertException($e);
-		}
-		return false;
-	}
-
-	/** {@inheritdoc} */
-	public function stat($path) {
-		try {
-			$response = $this->propfind($path);
-			return array(
-				'mtime' => strtotime($response['{DAV:}getlastmodified']),
-				'size' => (int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
-			);
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404) {
-				return array();
-			}
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return array();
-	}
-
-	/** {@inheritdoc} */
-	public function getMimeType($path) {
-		try {
-			$response = $this->propfind($path);
-			$responseType = array();
-			if (isset($response["{DAV:}resourcetype"])) {
-				/** @var ResourceType[] $response */
-				$responseType = $response["{DAV:}resourcetype"]->getValue();
-			}
-			$type = (count($responseType) > 0 and $responseType[0] == "{DAV:}collection") ? 'dir' : 'file';
-			if ($type == 'dir') {
-				return 'httpd/unix-directory';
-			} elseif (isset($response['{DAV:}getcontenttype'])) {
-				return $response['{DAV:}getcontenttype'];
-			} else {
-				return false;
-			}
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404) {
-				return false;
-			}
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function cleanPath($path) {
-		if ($path === '') {
-			return $path;
-		}
-		$path = Filesystem::normalizePath($path);
-		// remove leading slash
-		return substr($path, 1);
-	}
-
-	/**
-	 * URL encodes the given path but keeps the slashes
-	 *
-	 * @param string $path to encode
-	 * @return string encoded path
-	 */
-	private function encodePath($path) {
-		// slashes need to stay
-		return str_replace('%2F', '/', rawurlencode($path));
-	}
-
-	/**
-	 * @param string $method
-	 * @param string $path
-	 * @param string|resource|null $body
-	 * @param int $expected
-	 * @return bool
-	 * @throws StorageInvalidException
-	 * @throws StorageNotAvailableException
-	 */
-	private function simpleResponse($method, $path, $body, $expected) {
-		$path = $this->cleanPath($path);
-		try {
-			$response = $this->client->request($method, $this->encodePath($path), $body);
-			return $response['statusCode'] == $expected;
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404 && $method === 'DELETE') {
-				$this->statCache->clear($path . '/');
-				$this->statCache->set($path, false);
-				return false;
-			}
-
-			$this->convertException($e, $path);
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-		}
-		return false;
-	}
-
-	/**
-	 * check if curl is installed
-	 */
-	public static function checkDependencies() {
-		return true;
-	}
-
-	/** {@inheritdoc} */
-	public function isUpdatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_UPDATE);
-	}
-
-	/** {@inheritdoc} */
-	public function isCreatable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_CREATE);
-	}
-
-	/** {@inheritdoc} */
-	public function isSharable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_SHARE);
-	}
-
-	/** {@inheritdoc} */
-	public function isDeletable($path) {
-		return (bool)($this->getPermissions($path) & Constants::PERMISSION_DELETE);
-	}
-
-	/** {@inheritdoc} */
-	public function getPermissions($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$response = $this->propfind($path);
-		if (isset($response['{http://owncloud.org/ns}permissions'])) {
-			return $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
-		} else if ($this->is_dir($path)) {
-			return Constants::PERMISSION_ALL;
-		} else if ($this->file_exists($path)) {
-			return Constants::PERMISSION_ALL - Constants::PERMISSION_CREATE;
-		} else {
-			return 0;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getETag($path) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		$response = $this->propfind($path);
-		if (isset($response['{DAV:}getetag'])) {
-			return trim($response['{DAV:}getetag'], '"');
-		}
-		return parent::getEtag($path);
-	}
-
-	/**
-	 * @param string $permissionsString
-	 * @return int
-	 */
-	protected function parsePermissions($permissionsString) {
-		$permissions = Constants::PERMISSION_READ;
-		if (strpos($permissionsString, 'R') !== false) {
-			$permissions |= Constants::PERMISSION_SHARE;
-		}
-		if (strpos($permissionsString, 'D') !== false) {
-			$permissions |= Constants::PERMISSION_DELETE;
-		}
-		if (strpos($permissionsString, 'W') !== false) {
-			$permissions |= Constants::PERMISSION_UPDATE;
-		}
-		if (strpos($permissionsString, 'CK') !== false) {
-			$permissions |= Constants::PERMISSION_CREATE;
-			$permissions |= Constants::PERMISSION_UPDATE;
-		}
-		return $permissions;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @throws \OCP\Files\StorageNotAvailableException
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		$this->init();
-		$path = $this->cleanPath($path);
-		try {
-			// force refresh for $path
-			$this->statCache->remove($path);
-			$response = $this->propfind($path);
-			if (isset($response['{DAV:}getetag'])) {
-				$cachedData = $this->getCache()->get($path);
-				$etag = null;
-				if (isset($response['{DAV:}getetag'])) {
-					$etag = trim($response['{DAV:}getetag'], '"');
-				}
-				if (!empty($etag) && $cachedData['etag'] !== $etag) {
-					return true;
-				} else if (isset($response['{http://open-collaboration-services.org/ns}share-permissions'])) {
-					$sharePermissions = (int)$response['{http://open-collaboration-services.org/ns}share-permissions'];
-					return $sharePermissions !== $cachedData['permissions'];
-				} else if (isset($response['{http://owncloud.org/ns}permissions'])) {
-					$permissions = $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
-					return $permissions !== $cachedData['permissions'];
-				} else {
-					return false;
-				}
-			} else {
-				$remoteMtime = strtotime($response['{DAV:}getlastmodified']);
-				return $remoteMtime > $time;
-			}
-		} catch (ClientHttpException $e) {
-			if ($e->getHttpStatus() === 404 || $e->getHttpStatus() === 405) {
-				if ($path === '') {
-					// if root is gone it means the storage is not available
-					throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-				}
-				return false;
-			}
-			$this->convertException($e, $path);
-			return false;
-		} catch (\Exception $e) {
-			$this->convertException($e, $path);
-			return false;
-		}
-	}
-
-	/**
-	 * Interpret the given exception and decide whether it is due to an
-	 * unavailable storage, invalid storage or other.
-	 * This will either throw StorageInvalidException, StorageNotAvailableException
-	 * or do nothing.
-	 *
-	 * @param Exception $e sabre exception
-	 * @param string $path optional path from the operation
-	 *
-	 * @throws StorageInvalidException if the storage is invalid, for example
-	 * when the authentication expired or is invalid
-	 * @throws StorageNotAvailableException if the storage is not available,
-	 * which might be temporary
-	 */
-	private function convertException(Exception $e, $path = '') {
-		Util::writeLog('files_external', $e->getMessage(), Util::ERROR);
-		if ($e instanceof ClientHttpException) {
-			if ($e->getHttpStatus() === 423) {
-				throw new \OCP\Lock\LockedException($path);
-			}
-			if ($e->getHttpStatus() === 401) {
-				// either password was changed or was invalid all along
-				throw new StorageInvalidException(get_class($e) . ': ' . $e->getMessage());
-			} else if ($e->getHttpStatus() === 405) {
-				// ignore exception for MethodNotAllowed, false will be returned
-				return;
-			}
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if ($e instanceof ClientException) {
-			// connection timeout or refused, server could be temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if ($e instanceof \InvalidArgumentException) {
-			// parse error because the server returned HTML instead of XML,
-			// possibly temporarily down
-			throw new StorageNotAvailableException(get_class($e) . ': ' . $e->getMessage());
-		} else if (($e instanceof StorageNotAvailableException) || ($e instanceof StorageInvalidException)) {
-			// rethrow
-			throw $e;
-		}
-
-		// TODO: only log for now, but in the future need to wrap/rethrow exception
-	}
-}
-
diff --git a/lib/private/files/storage/failedstorage.php b/lib/private/files/storage/failedstorage.php
deleted file mode 100644
index df7f76856d5..00000000000
--- a/lib/private/files/storage/failedstorage.php
+++ /dev/null
@@ -1,215 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-use OC\Files\Cache\FailedCache;
-use \OCP\Lock\ILockingProvider;
-use \OCP\Files\StorageNotAvailableException;
-
-/**
- * Storage placeholder to represent a missing precondition, storage unavailable
- */
-class FailedStorage extends Common {
-
-	/** @var \Exception */
-	protected $e;
-
-	/**
-	 * @param array $params ['exception' => \Exception]
-	 */
-	public function __construct($params) {
-		$this->e = $params['exception'];
-		if (!$this->e) {
-			throw new \InvalidArgumentException('Missing "exception" argument in FailedStorage constructor');
-		}
-	}
-
-	public function getId() {
-		// we can't return anything sane here
-		return 'failedstorage';
-	}
-
-	public function mkdir($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function rmdir($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function opendir($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function is_dir($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function is_file($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function stat($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function filetype($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function filesize($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function isCreatable($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function isReadable($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function isUpdatable($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function isDeletable($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function isSharable($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getPermissions($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function file_exists($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function filemtime($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function file_get_contents($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function file_put_contents($path, $data) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function unlink($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function rename($path1, $path2) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function copy($path1, $path2) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function fopen($path, $mode) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getMimeType($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function hash($type, $path, $raw = false) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function free_space($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function search($query) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function touch($path, $mtime = null) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getLocalFile($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getLocalFolder($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function hasUpdated($path, $time) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getETag($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getDirectDownload($path) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function verifyPath($path, $fileName) {
-		return true;
-	}
-
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function acquireLock($path, $type, ILockingProvider $provider) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function releaseLock($path, $type, ILockingProvider $provider) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function changeLock($path, $type, ILockingProvider $provider) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getAvailability() {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function setAvailability($isAvailable) {
-		throw new StorageNotAvailableException($this->e->getMessage(), $this->e->getCode(), $this->e);
-	}
-
-	public function getCache($path = '', $storage = null) {
-		return new FailedCache();
-	}
-}
diff --git a/lib/private/files/storage/flysystem.php b/lib/private/files/storage/flysystem.php
deleted file mode 100644
index 608639b71a6..00000000000
--- a/lib/private/files/storage/flysystem.php
+++ /dev/null
@@ -1,256 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-use Icewind\Streams\CallbackWrapper;
-use Icewind\Streams\IteratorDirectory;
-use League\Flysystem\AdapterInterface;
-use League\Flysystem\FileNotFoundException;
-use League\Flysystem\Filesystem;
-use League\Flysystem\Plugin\GetWithMetadata;
-
-/**
- * Generic adapter between flysystem adapters and owncloud's storage system
- *
- * To use: subclass and call $this->buildFlysystem with the flysystem adapter of choice
- */
-abstract class Flysystem extends Common {
-	/**
-	 * @var Filesystem
-	 */
-	protected $flysystem;
-
-	/**
-	 * @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);
-		$this->flysystem->addPlugin(new GetWithMetadata());
-	}
-
-	protected function buildPath($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($path));
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function file_put_contents($path, $data) {
-		return $this->flysystem->put($this->buildPath($path), $data);
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function file_exists($path) {
-		return $this->flysystem->has($this->buildPath($path));
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function unlink($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 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($path));
-		}
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function mkdir($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($path));
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function rmdir($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 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 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'];
-	}
-}
diff --git a/lib/private/files/storage/home.php b/lib/private/files/storage/home.php
deleted file mode 100644
index 9b98f2f7e12..00000000000
--- a/lib/private/files/storage/home.php
+++ /dev/null
@@ -1,114 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-use OC\Files\Cache\HomePropagator;
-
-/**
- * Specialized version of Local storage for home directory usage
- */
-class Home extends Local implements \OCP\Files\IHomeStorage {
-	/**
-	 * @var string
-	 */
-	protected $id;
-
-	/**
-	 * @var \OC\User\User $user
-	 */
-	protected $user;
-
-	/**
-	 * Construct a Home storage instance
-	 * @param array $arguments array with "user" containing the
-	 * storage owner and "legacy" containing "true" if the storage is
-	 * a legacy storage with "local::" URL instead of the new "home::" one.
-	 */
-	public function __construct($arguments) {
-		$this->user = $arguments['user'];
-		$datadir = $this->user->getHome();
-		if (isset($arguments['legacy']) && $arguments['legacy']) {
-			// legacy home id (<= 5.0.12)
-			$this->id = 'local::' . $datadir . '/';
-		}
-		else {
-		    $this->id = 'home::' . $this->user->getUID();
-		}
-
-		parent::__construct(array('datadir' => $datadir));
-	}
-
-	public function getId() {
-		return $this->id;
-	}
-
-	/**
-	 * @return \OC\Files\Cache\HomeCache
-	 */
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->cache)) {
-			$this->cache = new \OC\Files\Cache\HomeCache($storage);
-		}
-		return $this->cache;
-	}
-
-	/**
-	 * get a propagator instance for the cache
-	 *
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Propagator
-	 */
-	public function getPropagator($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		if (!isset($this->propagator)) {
-			$this->propagator = new HomePropagator($storage);
-		}
-		return $this->propagator;
-	}
-
-
-	/**
-	 * Returns the owner of this home storage
-	 * @return \OC\User\User owner of this home storage
-	 */
-	public function getUser() {
-		return $this->user;
-	}
-
-	/**
-	 * get the owner of a path
-	 *
-	 * @param string $path The path to get the owner
-	 * @return string uid or false
-	 */
-	public function getOwner($path) {
-		return $this->user->getUID();
-	}
-}
diff --git a/lib/private/files/storage/local.php b/lib/private/files/storage/local.php
deleted file mode 100644
index 25b202af5f8..00000000000
--- a/lib/private/files/storage/local.php
+++ /dev/null
@@ -1,404 +0,0 @@
-<?php
-/**
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Brice Maron <brice@bmaron.net>
- * @author Jakob Sack <mail@jakobsack.de>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Klaas Freitag <freitag@owncloud.com>
- * @author Martin Mattel <martin.mattel@diemattels.at>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Sjors van der Pluijm <sjors@desjors.nl>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-/**
- * for local filestore, we only have to map the paths
- */
-class Local extends \OC\Files\Storage\Common {
-	protected $datadir;
-
-	public function __construct($arguments) {
-		$this->datadir = $arguments['datadir'];
-		if (substr($this->datadir, -1) !== '/') {
-			$this->datadir .= '/';
-		}
-	}
-
-	public function __destruct() {
-	}
-
-	public function getId() {
-		return 'local::' . $this->datadir;
-	}
-
-	public function mkdir($path) {
-		return @mkdir($this->getSourcePath($path), 0777, true);
-	}
-
-	public function rmdir($path) {
-		if (!$this->isDeletable($path)) {
-			return false;
-		}
-		try {
-			$it = new \RecursiveIteratorIterator(
-				new \RecursiveDirectoryIterator($this->getSourcePath($path)),
-				\RecursiveIteratorIterator::CHILD_FIRST
-			);
-			/**
-			 * RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
-			 * This bug is fixed in PHP 5.5.9 or before
-			 * See #8376
-			 */
-			$it->rewind();
-			while ($it->valid()) {
-				/**
-				 * @var \SplFileInfo $file
-				 */
-				$file = $it->current();
-				if (in_array($file->getBasename(), array('.', '..'))) {
-					$it->next();
-					continue;
-				} elseif ($file->isDir()) {
-					rmdir($file->getPathname());
-				} elseif ($file->isFile() || $file->isLink()) {
-					unlink($file->getPathname());
-				}
-				$it->next();
-			}
-			return rmdir($this->getSourcePath($path));
-		} catch (\UnexpectedValueException $e) {
-			return false;
-		}
-	}
-
-	public function opendir($path) {
-		return opendir($this->getSourcePath($path));
-	}
-
-	public function is_dir($path) {
-		if (substr($path, -1) == '/') {
-			$path = substr($path, 0, -1);
-		}
-		return is_dir($this->getSourcePath($path));
-	}
-
-	public function is_file($path) {
-		return is_file($this->getSourcePath($path));
-	}
-
-	public function stat($path) {
-		clearstatcache();
-		$fullPath = $this->getSourcePath($path);
-		$statResult = stat($fullPath);
-		if (PHP_INT_SIZE === 4 && !$this->is_dir($path)) {
-			$filesize = $this->filesize($path);
-			$statResult['size'] = $filesize;
-			$statResult[7] = $filesize;
-		}
-		return $statResult;
-	}
-
-	public function filetype($path) {
-		$filetype = filetype($this->getSourcePath($path));
-		if ($filetype == 'link') {
-			$filetype = filetype(realpath($this->getSourcePath($path)));
-		}
-		return $filetype;
-	}
-
-	public function filesize($path) {
-		if ($this->is_dir($path)) {
-			return 0;
-		}
-		$fullPath = $this->getSourcePath($path);
-		if (PHP_INT_SIZE === 4) {
-			$helper = new \OC\LargeFileHelper;
-			return $helper->getFilesize($fullPath);
-		}
-		return filesize($fullPath);
-	}
-
-	public function isReadable($path) {
-		return is_readable($this->getSourcePath($path));
-	}
-
-	public function isUpdatable($path) {
-		return is_writable($this->getSourcePath($path));
-	}
-
-	public function file_exists($path) {
-		return file_exists($this->getSourcePath($path));
-	}
-
-	public function filemtime($path) {
-		clearstatcache($this->getSourcePath($path));
-		return filemtime($this->getSourcePath($path));
-	}
-
-	public function touch($path, $mtime = null) {
-		// sets the modification time of the file to the given value.
-		// If mtime is nil the current time is set.
-		// note that the access time of the file always changes to the current time.
-		if ($this->file_exists($path) and !$this->isUpdatable($path)) {
-			return false;
-		}
-		if (!is_null($mtime)) {
-			$result = touch($this->getSourcePath($path), $mtime);
-		} else {
-			$result = touch($this->getSourcePath($path));
-		}
-		if ($result) {
-			clearstatcache(true, $this->getSourcePath($path));
-		}
-
-		return $result;
-	}
-
-	public function file_get_contents($path) {
-		// file_get_contents() has a memory leak: https://bugs.php.net/bug.php?id=61961
-		$fileName = $this->getSourcePath($path);
-
-		$fileSize = filesize($fileName);
-		if ($fileSize === 0) {
-			return '';
-		}
-
-		$handle = fopen($fileName,'rb');
-		$content = fread($handle, $fileSize);
-		fclose($handle);
-		return $content;
-	}
-
-	public function file_put_contents($path, $data) {
-		return file_put_contents($this->getSourcePath($path), $data);
-	}
-
-	public function unlink($path) {
-		if ($this->is_dir($path)) {
-			return $this->rmdir($path);
-		} else if ($this->is_file($path)) {
-			return unlink($this->getSourcePath($path));
-		} else {
-			return false;
-		}
-
-	}
-
-	public function rename($path1, $path2) {
-		$srcParent = dirname($path1);
-		$dstParent = dirname($path2);
-
-		if (!$this->isUpdatable($srcParent)) {
-			\OCP\Util::writeLog('core', 'unable to rename, source directory is not writable : ' . $srcParent, \OCP\Util::ERROR);
-			return false;
-		}
-
-		if (!$this->isUpdatable($dstParent)) {
-			\OCP\Util::writeLog('core', 'unable to rename, destination directory is not writable : ' . $dstParent, \OCP\Util::ERROR);
-			return false;
-		}
-
-		if (!$this->file_exists($path1)) {
-			\OCP\Util::writeLog('core', 'unable to rename, file does not exists : ' . $path1, \OCP\Util::ERROR);
-			return false;
-		}
-
-		if ($this->is_dir($path2)) {
-			$this->rmdir($path2);
-		} else if ($this->is_file($path2)) {
-			$this->unlink($path2);
-		}
-
-		if ($this->is_dir($path1)) {
-			// we can't move folders across devices, use copy instead
-			$stat1 = stat(dirname($this->getSourcePath($path1)));
-			$stat2 = stat(dirname($this->getSourcePath($path2)));
-			if ($stat1['dev'] !== $stat2['dev']) {
-				$result = $this->copy($path1, $path2);
-				if ($result) {
-					$result &= $this->rmdir($path1);
-				}
-				return $result;
-			}
-		}
-
-		return rename($this->getSourcePath($path1), $this->getSourcePath($path2));
-	}
-
-	public function copy($path1, $path2) {
-		if ($this->is_dir($path1)) {
-			return parent::copy($path1, $path2);
-		} else {
-			return copy($this->getSourcePath($path1), $this->getSourcePath($path2));
-		}
-	}
-
-	public function fopen($path, $mode) {
-		return fopen($this->getSourcePath($path), $mode);
-	}
-
-	public function hash($type, $path, $raw = false) {
-		return hash_file($type, $this->getSourcePath($path), $raw);
-	}
-
-	public function free_space($path) {
-		$sourcePath = $this->getSourcePath($path);
-		// using !is_dir because $sourcePath might be a part file or
-		// non-existing file, so we'd still want to use the parent dir
-		// in such cases
-		if (!is_dir($sourcePath)) {
-			// disk_free_space doesn't work on files
-			$sourcePath = dirname($sourcePath);
-		}
-		$space = @disk_free_space($sourcePath);
-		if ($space === false || is_null($space)) {
-			return \OCP\Files\FileInfo::SPACE_UNKNOWN;
-		}
-		return $space;
-	}
-
-	public function search($query) {
-		return $this->searchInDir($query);
-	}
-
-	public function getLocalFile($path) {
-		return $this->getSourcePath($path);
-	}
-
-	public function getLocalFolder($path) {
-		return $this->getSourcePath($path);
-	}
-
-	/**
-	 * @param string $query
-	 * @param string $dir
-	 * @return array
-	 */
-	protected function searchInDir($query, $dir = '') {
-		$files = array();
-		$physicalDir = $this->getSourcePath($dir);
-		foreach (scandir($physicalDir) as $item) {
-			if (\OC\Files\Filesystem::isIgnoredDir($item))
-				continue;
-			$physicalItem = $physicalDir . '/' . $item;
-
-			if (strstr(strtolower($item), strtolower($query)) !== false) {
-				$files[] = $dir . '/' . $item;
-			}
-			if (is_dir($physicalItem)) {
-				$files = array_merge($files, $this->searchInDir($query, $dir . '/' . $item));
-			}
-		}
-		return $files;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		if ($this->file_exists($path)) {
-			return $this->filemtime($path) > $time;
-		} else {
-			return true;
-		}
-	}
-
-	/**
-	 * Get the source path (on disk) of a given path
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getSourcePath($path) {
-		$fullPath = $this->datadir . $path;
-		return $fullPath;
-	}
-
-	/**
-	 * {@inheritdoc}
-	 */
-	public function isLocal() {
-		return true;
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		if ($this->is_file($path)) {
-			$stat = $this->stat($path);
-			return md5(
-				$stat['mtime'] .
-				$stat['ino'] .
-				$stat['dev'] .
-				$stat['size']
-			);
-		} else {
-			return parent::getETag($path);
-		}
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if($sourceStorage->instanceOfStorage('\OC\Files\Storage\Local')){
-			/**
-			 * @var \OC\Files\Storage\Local $sourceStorage
-			 */
-			$rootStorage = new Local(['datadir' => '/']);
-			return $rootStorage->copy($sourceStorage->getSourcePath($sourceInternalPath), $this->getSourcePath($targetInternalPath));
-		} else {
-			return parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		}
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage->instanceOfStorage('\OC\Files\Storage\Local')) {
-			/**
-			 * @var \OC\Files\Storage\Local $sourceStorage
-			 */
-			$rootStorage = new Local(['datadir' => '/']);
-			return $rootStorage->rename($sourceStorage->getSourcePath($sourceInternalPath), $this->getSourcePath($targetInternalPath));
-		} else {
-			return parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		}
-	}
-}
diff --git a/lib/private/files/storage/localtempfiletrait.php b/lib/private/files/storage/localtempfiletrait.php
deleted file mode 100644
index 88f11e4e752..00000000000
--- a/lib/private/files/storage/localtempfiletrait.php
+++ /dev/null
@@ -1,80 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-/**
- * Storage backend class for providing common filesystem operation methods
- * which are not storage-backend specific.
- *
- * \OC\Files\Storage\Common is never used directly; it is extended by all other
- * storage backends, where its methods may be overridden, and additional
- * (backend-specific) methods are defined.
- *
- * Some \OC\Files\Storage\Common methods call functions which are first defined
- * in classes which extend it, e.g. $this->stat() .
- */
-trait LocalTempFileTrait {
-
-	/** @var string[] */
-	protected $cachedFiles = [];
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	protected function getCachedFile($path) {
-		if (!isset($this->cachedFiles[$path])) {
-			$this->cachedFiles[$path] = $this->toTmpFile($path);
-		}
-		return $this->cachedFiles[$path];
-	}
-
-	/**
-	 * @param string $path
-	 */
-	protected function removeCachedFile($path) {
-		unset($this->cachedFiles[$path]);
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	protected function toTmpFile($path) { //no longer in the storage api, still useful here
-		$source = $this->fopen($path, 'r');
-		if (!$source) {
-			return false;
-		}
-		if ($pos = strrpos($path, '.')) {
-			$extension = substr($path, $pos);
-		} else {
-			$extension = '';
-		}
-		$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($extension);
-		$target = fopen($tmpFile, 'w');
-		\OC_Helper::streamCopy($source, $target);
-		fclose($target);
-		return $tmpFile;
-	}
-}
diff --git a/lib/private/files/storage/polyfill/copydirectory.php b/lib/private/files/storage/polyfill/copydirectory.php
deleted file mode 100644
index d4cac117ade..00000000000
--- a/lib/private/files/storage/polyfill/copydirectory.php
+++ /dev/null
@@ -1,103 +0,0 @@
-<?php
-/**
- * @author Martin Mattel <martin.mattel@diemattels.at>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\PolyFill;
-
-trait CopyDirectory {
-	/**
-	 * Check if a path is a directory
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	abstract public function is_dir($path);
-
-	/**
-	 * Check if a file or folder exists
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	abstract public function file_exists($path);
-
-	/**
-	 * Delete a file or folder
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	abstract public function unlink($path);
-
-	/**
-	 * Open a directory handle for a folder
-	 *
-	 * @param string $path
-	 * @return resource | bool
-	 */
-	abstract public function opendir($path);
-
-	/**
-	 * Create a new folder
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	abstract public function mkdir($path);
-
-	public function copy($source, $target) {
-		if ($this->is_dir($source)) {
-			if ($this->file_exists($target)) {
-				$this->unlink($target);
-			}
-			$this->mkdir($target);
-			return $this->copyRecursive($source, $target);
-		} else {
-			return parent::copy($source, $target);
-		}
-	}
-
-	/**
-	 * For adapters that don't support copying folders natively
-	 *
-	 * @param $source
-	 * @param $target
-	 * @return bool
-	 */
-	protected function copyRecursive($source, $target) {
-		$dh = $this->opendir($source);
-		$result = true;
-		while ($file = readdir($dh)) {
-			if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-				if ($this->is_dir($source . '/' . $file)) {
-					$this->mkdir($target . '/' . $file);
-					$result = $this->copyRecursive($source . '/' . $file, $target . '/' . $file);
-				} else {
-					$result = parent::copy($source . '/' . $file, $target . '/' . $file);
-				}
-				if (!$result) {
-					break;
-				}
-			}
-		}
-		return $result;
-	}
-}
diff --git a/lib/private/files/storage/storage.php b/lib/private/files/storage/storage.php
deleted file mode 100644
index c066336d4b8..00000000000
--- a/lib/private/files/storage/storage.php
+++ /dev/null
@@ -1,119 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-use OCP\Lock\ILockingProvider;
-
-/**
- * Provide a common interface to all different storage options
- *
- * All paths passed to the storage are relative to the storage and should NOT have a leading slash.
- */
-interface Storage extends \OCP\Files\Storage {
-
-	/**
-	 * get a cache instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
-	 * @return \OC\Files\Cache\Cache
-	 */
-	public function getCache($path = '', $storage = null);
-
-	/**
-	 * get a scanner instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the scanner
-	 * @return \OC\Files\Cache\Scanner
-	 */
-	public function getScanner($path = '', $storage = null);
-
-
-	/**
-	 * get the user id of the owner of a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getOwner($path);
-
-	/**
-	 * get a watcher instance for the cache
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Watcher
-	 */
-	public function getWatcher($path = '', $storage = null);
-
-	/**
-	 * get a propagator instance for the cache
-	 *
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Propagator
-	 */
-	public function getPropagator($storage = null);
-
-	/**
-	 * get a updater instance for the cache
-	 *
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Updater
-	 */
-	public function getUpdater($storage = null);
-
-	/**
-	 * @return \OC\Files\Cache\Storage
-	 */
-	public function getStorageCache();
-
-	/**
-	 * @param string $path
-	 * @return array
-	 */
-	public function getMetaData($path);
-
-	/**
-	 * @param string $path The path of the file to acquire the lock for
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type, ILockingProvider $provider);
-
-	/**
-	 * @param string $path The path of the file to release the lock for
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function releaseLock($path, $type, ILockingProvider $provider);
-
-	/**
-	 * @param string $path The path of the file to change the lock for
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function changeLock($path, $type, ILockingProvider $provider);
-}
diff --git a/lib/private/files/storage/storagefactory.php b/lib/private/files/storage/storagefactory.php
deleted file mode 100644
index 84362cabecc..00000000000
--- a/lib/private/files/storage/storagefactory.php
+++ /dev/null
@@ -1,107 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\Storage\IStorageFactory;
-
-class StorageFactory implements IStorageFactory {
-	/**
-	 * @var array[] [$name=>['priority'=>$priority, 'wrapper'=>$callable] $storageWrappers
-	 */
-	private $storageWrappers = [];
-
-	/**
-	 * allow modifier storage behaviour by adding wrappers around storages
-	 *
-	 * $callback should be a function of type (string $mountPoint, Storage $storage) => Storage
-	 *
-	 * @param string $wrapperName name of the wrapper
-	 * @param callable $callback callback
-	 * @param int $priority wrappers with the lower priority are applied last (meaning they get called first)
-	 * @param \OCP\Files\Mount\IMountPoint[] $existingMounts existing mount points to apply the wrapper to
-	 * @return bool true if the wrapper was added, false if there was already a wrapper with this
-	 * name registered
-	 */
-	public function addStorageWrapper($wrapperName, $callback, $priority = 50, $existingMounts = []) {
-		if (isset($this->storageWrappers[$wrapperName])) {
-			return false;
-		}
-
-		// apply to existing mounts before registering it to prevent applying it double in MountPoint::createStorage
-		foreach ($existingMounts as $mount) {
-			$mount->wrapStorage($callback);
-		}
-
-		$this->storageWrappers[$wrapperName] = ['wrapper' => $callback, 'priority' => $priority];
-		return true;
-	}
-
-	/**
-	 * Remove a storage wrapper by name.
-	 * Note: internal method only to be used for cleanup
-	 *
-	 * @param string $wrapperName name of the wrapper
-	 * @internal
-	 */
-	public function removeStorageWrapper($wrapperName) {
-		unset($this->storageWrappers[$wrapperName]);
-	}
-
-	/**
-	 * Create an instance of a storage and apply the registered storage wrappers
-	 *
-	 * @param \OCP\Files\Mount\IMountPoint $mountPoint
-	 * @param string $class
-	 * @param array $arguments
-	 * @return \OCP\Files\Storage
-	 */
-	public function getInstance(IMountPoint $mountPoint, $class, $arguments) {
-		return $this->wrap($mountPoint, new $class($arguments));
-	}
-
-	/**
-	 * @param \OCP\Files\Mount\IMountPoint $mountPoint
-	 * @param \OCP\Files\Storage $storage
-	 * @return \OCP\Files\Storage
-	 */
-	public function wrap(IMountPoint $mountPoint, $storage) {
-		$wrappers = array_values($this->storageWrappers);
-		usort($wrappers, function ($a, $b) {
-			return $b['priority'] - $a['priority'];
-		});
-		/** @var callable[] $wrappers */
-		$wrappers = array_map(function ($wrapper) {
-			return $wrapper['wrapper'];
-		}, $wrappers);
-		foreach ($wrappers as $wrapper) {
-			$storage = $wrapper($mountPoint->getMountPoint(), $storage, $mountPoint);
-			if (!($storage instanceof \OCP\Files\Storage)) {
-				throw new \Exception('Invalid result from storage wrapper');
-			}
-		}
-		return $storage;
-	}
-}
diff --git a/lib/private/files/storage/temporary.php b/lib/private/files/storage/temporary.php
deleted file mode 100644
index 2d8e84c2d52..00000000000
--- a/lib/private/files/storage/temporary.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage;
-
-/**
- * local storage backend in temporary folder for testing purpose
- */
-class Temporary extends Local{
-	public function __construct($arguments = null) {
-		parent::__construct(array('datadir' => \OC::$server->getTempManager()->getTemporaryFolder()));
-	}
-
-	public function cleanUp() {
-		\OC_Helper::rmdirr($this->datadir);
-	}
-
-	public function __destruct() {
-		parent::__destruct();
-		$this->cleanUp();
-	}
-
-	public function getDataDir() {
-		return $this->datadir;
-	}
-}
diff --git a/lib/private/files/storage/wrapper/availability.php b/lib/private/files/storage/wrapper/availability.php
deleted file mode 100644
index 0ed31ba854a..00000000000
--- a/lib/private/files/storage/wrapper/availability.php
+++ /dev/null
@@ -1,461 +0,0 @@
-<?php
-/**
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\Files\Storage\Wrapper;
-
-/**
- * Availability checker for storages
- *
- * Throws a StorageNotAvailableException for storages with known failures
- */
-class Availability extends Wrapper {
-	const RECHECK_TTL_SEC = 600; // 10 minutes
-
-	public static function shouldRecheck($availability) {
-		if (!$availability['available']) {
-			// trigger a recheck if TTL reached
-			if ((time() - $availability['last_checked']) > self::RECHECK_TTL_SEC) {
-				return true;
-			}
-		}
-		return false;
-	}
-
-	/**
-	 * @return bool
-	 */
-	private function updateAvailability() {
-		try {
-			$result = $this->test();
-		} catch (\Exception $e) {
-			$result = false;
-		}
-		$this->setAvailability($result);
-		return $result;
-	}
-
-	/**
-	 * @return bool
-	 */
-	private function isAvailable() {
-		$availability = $this->getAvailability();
-		if (self::shouldRecheck($availability)) {
-			return $this->updateAvailability();
-		}
-		return $availability['available'];
-	}
-
-	/**
-	 * @throws \OCP\Files\StorageNotAvailableException
-	 */
-	private function checkAvailability() {
-		if (!$this->isAvailable()) {
-			throw new \OCP\Files\StorageNotAvailableException();
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function mkdir($path) {
-		$this->checkAvailability();
-		try {
-			return parent::mkdir($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function rmdir($path) {
-		$this->checkAvailability();
-		try {
-			return parent::rmdir($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function opendir($path) {
-		$this->checkAvailability();
-		try {
-			return parent::opendir($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function is_dir($path) {
-		$this->checkAvailability();
-		try {
-			return parent::is_dir($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function is_file($path) {
-		$this->checkAvailability();
-		try {
-			return parent::is_file($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function stat($path) {
-		$this->checkAvailability();
-		try {
-			return parent::stat($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function filetype($path) {
-		$this->checkAvailability();
-		try {
-			return parent::filetype($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function filesize($path) {
-		$this->checkAvailability();
-		try {
-			return parent::filesize($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function isCreatable($path) {
-		$this->checkAvailability();
-		try {
-			return parent::isCreatable($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function isReadable($path) {
-		$this->checkAvailability();
-		try {
-			return parent::isReadable($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function isUpdatable($path) {
-		$this->checkAvailability();
-		try {
-			return parent::isUpdatable($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function isDeletable($path) {
-		$this->checkAvailability();
-		try {
-			return parent::isDeletable($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function isSharable($path) {
-		$this->checkAvailability();
-		try {
-			return parent::isSharable($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getPermissions($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getPermissions($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function file_exists($path) {
-		if ($path === '') {
-			return true;
-		}
-		$this->checkAvailability();
-		try {
-			return parent::file_exists($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function filemtime($path) {
-		$this->checkAvailability();
-		try {
-			return parent::filemtime($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function file_get_contents($path) {
-		$this->checkAvailability();
-		try {
-			return parent::file_get_contents($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function file_put_contents($path, $data) {
-		$this->checkAvailability();
-		try {
-			return parent::file_put_contents($path, $data);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function unlink($path) {
-		$this->checkAvailability();
-		try {
-			return parent::unlink($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function rename($path1, $path2) {
-		$this->checkAvailability();
-		try {
-			return parent::rename($path1, $path2);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function copy($path1, $path2) {
-		$this->checkAvailability();
-		try {
-			return parent::copy($path1, $path2);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function fopen($path, $mode) {
-		$this->checkAvailability();
-		try {
-			return parent::fopen($path, $mode);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getMimeType($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getMimeType($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function hash($type, $path, $raw = false) {
-		$this->checkAvailability();
-		try {
-			return parent::hash($type, $path, $raw);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function free_space($path) {
-		$this->checkAvailability();
-		try {
-			return parent::free_space($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function search($query) {
-		$this->checkAvailability();
-		try {
-			return parent::search($query);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function touch($path, $mtime = null) {
-		$this->checkAvailability();
-		try {
-			return parent::touch($path, $mtime);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getLocalFile($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getLocalFile($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function hasUpdated($path, $time) {
-		$this->checkAvailability();
-		try {
-			return parent::hasUpdated($path, $time);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getOwner($path) {
-		try {
-			return parent::getOwner($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getETag($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getETag($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getDirectDownload($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getDirectDownload($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		$this->checkAvailability();
-		try {
-			return parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		$this->checkAvailability();
-		try {
-			return parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-
-	/** {@inheritdoc} */
-	public function getMetaData($path) {
-		$this->checkAvailability();
-		try {
-			return parent::getMetaData($path);
-		} catch (\OCP\Files\StorageNotAvailableException $e) {
-			$this->setAvailability(false);
-			throw $e;
-		}
-	}
-}
diff --git a/lib/private/files/storage/wrapper/encryption.php b/lib/private/files/storage/wrapper/encryption.php
deleted file mode 100644
index 02da978a700..00000000000
--- a/lib/private/files/storage/wrapper/encryption.php
+++ /dev/null
@@ -1,993 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\Wrapper;
-
-use OC\Encryption\Exceptions\ModuleDoesNotExistsException;
-use OC\Encryption\Update;
-use OC\Encryption\Util;
-use OC\Files\Cache\CacheEntry;
-use OC\Files\Filesystem;
-use OC\Files\Mount\Manager;
-use OC\Files\Storage\LocalTempFileTrait;
-use OC\Memcache\ArrayCache;
-use OCP\Encryption\Exceptions\GenericEncryptionException;
-use OCP\Encryption\IFile;
-use OCP\Encryption\IManager;
-use OCP\Encryption\Keys\IStorage;
-use OCP\Files\Mount\IMountPoint;
-use OCP\Files\Storage;
-use OCP\ILogger;
-use OCP\Files\Cache\ICacheEntry;
-
-class Encryption extends Wrapper {
-
-	use LocalTempFileTrait;
-
-	/** @var string */
-	private $mountPoint;
-
-	/** @var \OC\Encryption\Util */
-	private $util;
-
-	/** @var \OCP\Encryption\IManager */
-	private $encryptionManager;
-
-	/** @var \OCP\ILogger */
-	private $logger;
-
-	/** @var string */
-	private $uid;
-
-	/** @var array */
-	protected $unencryptedSize;
-
-	/** @var \OCP\Encryption\IFile */
-	private $fileHelper;
-
-	/** @var IMountPoint */
-	private $mount;
-
-	/** @var IStorage */
-	private $keyStorage;
-
-	/** @var Update */
-	private $update;
-
-	/** @var Manager */
-	private $mountManager;
-
-	/** @var array remember for which path we execute the repair step to avoid recursions */
-	private $fixUnencryptedSizeOf = array();
-
-	/** @var  ArrayCache */
-	private $arrayCache;
-
-	/**
-	 * @param array $parameters
-	 * @param IManager $encryptionManager
-	 * @param Util $util
-	 * @param ILogger $logger
-	 * @param IFile $fileHelper
-	 * @param string $uid
-	 * @param IStorage $keyStorage
-	 * @param Update $update
-	 * @param Manager $mountManager
-	 * @param ArrayCache $arrayCache
-	 */
-	public function __construct(
-			$parameters,
-			IManager $encryptionManager = null,
-			Util $util = null,
-			ILogger $logger = null,
-			IFile $fileHelper = null,
-			$uid = null,
-			IStorage $keyStorage = null,
-			Update $update = null,
-			Manager $mountManager = null,
-			ArrayCache $arrayCache = null
-		) {
-
-		$this->mountPoint = $parameters['mountPoint'];
-		$this->mount = $parameters['mount'];
-		$this->encryptionManager = $encryptionManager;
-		$this->util = $util;
-		$this->logger = $logger;
-		$this->uid = $uid;
-		$this->fileHelper = $fileHelper;
-		$this->keyStorage = $keyStorage;
-		$this->unencryptedSize = array();
-		$this->update = $update;
-		$this->mountManager = $mountManager;
-		$this->arrayCache = $arrayCache;
-		parent::__construct($parameters);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filesize.php
-	 * The result for filesize when called on a folder is required to be 0
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filesize($path) {
-		$fullPath = $this->getFullPath($path);
-
-		/** @var CacheEntry $info */
-		$info = $this->getCache()->get($path);
-		if (isset($this->unencryptedSize[$fullPath])) {
-			$size = $this->unencryptedSize[$fullPath];
-			// update file cache
-			if ($info instanceof ICacheEntry) {
-				$info = $info->getData();
-				$info['encrypted'] = $info['encryptedVersion'];
-			} else {
-				if (!is_array($info)) {
-					$info = [];
-				}
-				$info['encrypted'] = true;
-			}
-
-			$info['size'] = $size;
-			$this->getCache()->put($path, $info);
-
-			return $size;
-		}
-
-		if (isset($info['fileid']) && $info['encrypted']) {
-			return $this->verifyUnencryptedSize($path, $info['size']);
-		}
-
-		return $this->storage->filesize($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return array
-	 */
-	public function getMetaData($path) {
-		$data = $this->storage->getMetaData($path);
-		if (is_null($data)) {
-			return null;
-		}
-		$fullPath = $this->getFullPath($path);
-		$info = $this->getCache()->get($path);
-
-		if (isset($this->unencryptedSize[$fullPath])) {
-			$data['encrypted'] = true;
-			$data['size'] = $this->unencryptedSize[$fullPath];
-		} else {
-			if (isset($info['fileid']) && $info['encrypted']) {
-				$data['size'] = $this->verifyUnencryptedSize($path, $info['size']);
-				$data['encrypted'] = true;
-			}
-		}
-
-		if (isset($info['encryptedVersion']) && $info['encryptedVersion'] > 1) {
-			$data['encryptedVersion'] = $info['encryptedVersion'];
-		}
-
-		return $data;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_get_contents.php
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function file_get_contents($path) {
-
-		$encryptionModule = $this->getEncryptionModule($path);
-
-		if ($encryptionModule) {
-			$handle = $this->fopen($path, "r");
-			if (!$handle) {
-				return false;
-			}
-			$data = stream_get_contents($handle);
-			fclose($handle);
-			return $data;
-		}
-		return $this->storage->file_get_contents($path);
-	}
-
-	/**
-	 * 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) {
-		// file put content will always be translated to a stream write
-		$handle = $this->fopen($path, 'w');
-		if (is_resource($handle)) {
-			$written = fwrite($handle, $data);
-			fclose($handle);
-			return $written;
-		}
-
-		return false;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.unlink.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function unlink($path) {
-		$fullPath = $this->getFullPath($path);
-		if ($this->util->isExcluded($fullPath)) {
-			return $this->storage->unlink($path);
-		}
-
-		$encryptionModule = $this->getEncryptionModule($path);
-		if ($encryptionModule) {
-			$this->keyStorage->deleteAllFileKeys($this->getFullPath($path));
-		}
-
-		return $this->storage->unlink($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rename.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function rename($path1, $path2) {
-
-		$result = $this->storage->rename($path1, $path2);
-
-		if ($result &&
-			// versions always use the keys from the original file, so we can skip
-			// this step for versions
-			$this->isVersion($path2) === false &&
-			$this->encryptionManager->isEnabled()) {
-			$source = $this->getFullPath($path1);
-			if (!$this->util->isExcluded($source)) {
-				$target = $this->getFullPath($path2);
-				if (isset($this->unencryptedSize[$source])) {
-					$this->unencryptedSize[$target] = $this->unencryptedSize[$source];
-				}
-				$this->keyStorage->renameKeys($source, $target);
-				$module = $this->getEncryptionModule($path2);
-				if ($module) {
-					$module->update($target, $this->uid, []);
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rmdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function rmdir($path) {
-		$result = $this->storage->rmdir($path);
-		$fullPath = $this->getFullPath($path);
-		if ($result &&
-			$this->util->isExcluded($fullPath) === false &&
-			$this->encryptionManager->isEnabled()
-		) {
-			$this->keyStorage->deleteAllFileKeys($fullPath);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * check if a file can be read
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isReadable($path) {
-
-		$isReadable = true;
-
-		$metaData = $this->getMetaData($path);
-		if (
-			!$this->is_dir($path) &&
-			isset($metaData['encrypted']) &&
-			$metaData['encrypted'] === true
-		) {
-			$fullPath = $this->getFullPath($path);
-			$module = $this->getEncryptionModule($path);
-			$isReadable = $module->isReadable($fullPath, $this->uid);
-		}
-
-		return $this->storage->isReadable($path) && $isReadable;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function copy($path1, $path2) {
-
-		$source = $this->getFullPath($path1);
-
-		if ($this->util->isExcluded($source)) {
-			return $this->storage->copy($path1, $path2);
-		}
-
-		// need to stream copy file by file in case we copy between a encrypted
-		// and a unencrypted storage
-		$this->unlink($path2);
-		$result = $this->copyFromStorage($this, $path1, $path2);
-
-		return $result;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource|bool
-	 * @throws GenericEncryptionException
-	 * @throws ModuleDoesNotExistsException
-	 */
-	public function fopen($path, $mode) {
-
-		// check if the file is stored in the array cache, this means that we
-		// copy a file over to the versions folder, in this case we don't want to
-		// decrypt it
-		if ($this->arrayCache->hasKey('encryption_copy_version_' . $path)) {
-			$this->arrayCache->remove('encryption_copy_version_' . $path);
-			return $this->storage->fopen($path, $mode);
-		}
-
-		$encryptionEnabled = $this->encryptionManager->isEnabled();
-		$shouldEncrypt = false;
-		$encryptionModule = null;
-		$header = $this->getHeader($path);
-		$signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
-		$fullPath = $this->getFullPath($path);
-		$encryptionModuleId = $this->util->getEncryptionModuleId($header);
-
-		if ($this->util->isExcluded($fullPath) === false) {
-
-			$size = $unencryptedSize = 0;
-			$realFile = $this->util->stripPartialFileExtension($path);
-			$targetExists = $this->file_exists($realFile) || $this->file_exists($path);
-			$targetIsEncrypted = false;
-			if ($targetExists) {
-				// in case the file exists we require the explicit module as
-				// specified in the file header - otherwise we need to fail hard to
-				// prevent data loss on client side
-				if (!empty($encryptionModuleId)) {
-					$targetIsEncrypted = true;
-					$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-				}
-
-				if ($this->file_exists($path)) {
-					$size = $this->storage->filesize($path);
-					$unencryptedSize = $this->filesize($path);
-				} else {
-					$size = $unencryptedSize = 0;
-				}
-			}
-
-			try {
-
-				if (
-					$mode === 'w'
-					|| $mode === 'w+'
-					|| $mode === 'wb'
-					|| $mode === 'wb+'
-				) {
-					// don't overwrite encrypted files if encryption is not enabled
-					if ($targetIsEncrypted && $encryptionEnabled === false) {
-						throw new GenericEncryptionException('Tried to access encrypted file but encryption is not enabled');
-					}
-					if ($encryptionEnabled) {
-						// if $encryptionModuleId is empty, the default module will be used
-						$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-						$shouldEncrypt = $encryptionModule->shouldEncrypt($fullPath);
-						$signed = true;
-					}
-				} else {
-					$info = $this->getCache()->get($path);
-					// only get encryption module if we found one in the header
-					// or if file should be encrypted according to the file cache
-					if (!empty($encryptionModuleId)) {
-						$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-						$shouldEncrypt = true;
-					} else if (empty($encryptionModuleId) && $info['encrypted'] === true) {
-						// we come from a old installation. No header and/or no module defined
-						// but the file is encrypted. In this case we need to use the
-						// OC_DEFAULT_MODULE to read the file
-						$encryptionModule = $this->encryptionManager->getEncryptionModule('OC_DEFAULT_MODULE');
-						$shouldEncrypt = true;
-						$targetIsEncrypted = true;
-					}
-				}
-			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->warning('Encryption module "' . $encryptionModuleId .
-					'" not found, file will be stored unencrypted (' . $e->getMessage() . ')');
-			}
-
-			// encryption disabled on write of new file and write to existing unencrypted file -> don't encrypt
-			if (!$encryptionEnabled || !$this->mount->getOption('encrypt', true)) {
-				if (!$targetExists || !$targetIsEncrypted) {
-					$shouldEncrypt = false;
-				}
-			}
-
-			if ($shouldEncrypt === true && $encryptionModule !== null) {
-				$headerSize = $this->getHeaderSize($path);
-				$source = $this->storage->fopen($path, $mode);
-				if (!is_resource($source)) {
-					return false;
-				}
-				$handle = \OC\Files\Stream\Encryption::wrap($source, $path, $fullPath, $header,
-					$this->uid, $encryptionModule, $this->storage, $this, $this->util, $this->fileHelper, $mode,
-					$size, $unencryptedSize, $headerSize, $signed);
-				return $handle;
-			}
-
-		}
-
-		return $this->storage->fopen($path, $mode);
-	}
-
-
-	/**
-	 * perform some plausibility checks if the the unencrypted size is correct.
-	 * If not, we calculate the correct unencrypted size and return it
-	 *
-	 * @param string $path internal path relative to the storage root
-	 * @param int $unencryptedSize size of the unencrypted file
-	 *
-	 * @return int unencrypted size
-	 */
-	protected function verifyUnencryptedSize($path, $unencryptedSize) {
-
-		$size = $this->storage->filesize($path);
-		$result = $unencryptedSize;
-
-		if ($unencryptedSize < 0 ||
-			($size > 0 && $unencryptedSize === $size)
-		) {
-			// check if we already calculate the unencrypted size for the
-			// given path to avoid recursions
-			if (isset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]) === false) {
-				$this->fixUnencryptedSizeOf[$this->getFullPath($path)] = true;
-				try {
-					$result = $this->fixUnencryptedSize($path, $size, $unencryptedSize);
-				} catch (\Exception $e) {
-					$this->logger->error('Couldn\'t re-calculate unencrypted size for '. $path);
-					$this->logger->logException($e);
-				}
-				unset($this->fixUnencryptedSizeOf[$this->getFullPath($path)]);
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * calculate the unencrypted size
-	 *
-	 * @param string $path internal path relative to the storage root
-	 * @param int $size size of the physical file
-	 * @param int $unencryptedSize size of the unencrypted file
-	 *
-	 * @return int calculated unencrypted size
-	 */
-	protected function fixUnencryptedSize($path, $size, $unencryptedSize) {
-
-		$headerSize = $this->getHeaderSize($path);
-		$header = $this->getHeader($path);
-		$encryptionModule = $this->getEncryptionModule($path);
-
-		$stream = $this->storage->fopen($path, 'r');
-
-		// if we couldn't open the file we return the old unencrypted size
-		if (!is_resource($stream)) {
-			$this->logger->error('Could not open ' . $path . '. Recalculation of unencrypted size aborted.');
-			return $unencryptedSize;
-		}
-
-		$newUnencryptedSize = 0;
-		$size -= $headerSize;
-		$blockSize = $this->util->getBlockSize();
-
-		// if a header exists we skip it
-		if ($headerSize > 0) {
-			fread($stream, $headerSize);
-		}
-
-		// fast path, else the calculation for $lastChunkNr is bogus
-		if ($size === 0) {
-			return 0;
-		}
-
-		$signed = (isset($header['signed']) && $header['signed'] === 'true') ? true : false;
-		$unencryptedBlockSize = $encryptionModule->getUnencryptedBlockSize($signed);
-
-		// calculate last chunk nr
-		// next highest is end of chunks, one subtracted is last one
-		// we have to read the last chunk, we can't just calculate it (because of padding etc)
-
-		$lastChunkNr = ceil($size/ $blockSize)-1;
-		// calculate last chunk position
-		$lastChunkPos = ($lastChunkNr * $blockSize);
-		// try to fseek to the last chunk, if it fails we have to read the whole file
-		if (@fseek($stream, $lastChunkPos, SEEK_CUR) === 0) {
-			$newUnencryptedSize += $lastChunkNr * $unencryptedBlockSize;
-		}
-
-		$lastChunkContentEncrypted='';
-		$count = $blockSize;
-
-		while ($count > 0) {
-			$data=fread($stream, $blockSize);
-			$count=strlen($data);
-			$lastChunkContentEncrypted .= $data;
-			if(strlen($lastChunkContentEncrypted) > $blockSize) {
-				$newUnencryptedSize += $unencryptedBlockSize;
-				$lastChunkContentEncrypted=substr($lastChunkContentEncrypted, $blockSize);
-			}
-		}
-
-		fclose($stream);
-
-		// we have to decrypt the last chunk to get it actual size
-		$encryptionModule->begin($this->getFullPath($path), $this->uid, 'r', $header, []);
-		$decryptedLastChunk = $encryptionModule->decrypt($lastChunkContentEncrypted, $lastChunkNr . 'end');
-		$decryptedLastChunk .= $encryptionModule->end($this->getFullPath($path), $lastChunkNr . 'end');
-
-		// calc the real file size with the size of the last chunk
-		$newUnencryptedSize += strlen($decryptedLastChunk);
-
-		$this->updateUnencryptedSize($this->getFullPath($path), $newUnencryptedSize);
-
-		// write to cache if applicable
-		$cache = $this->storage->getCache();
-		if ($cache) {
-			$entry = $cache->get($path);
-			$cache->update($entry['fileid'], ['size' => $newUnencryptedSize]);
-		}
-
-		return $newUnencryptedSize;
-	}
-
-	/**
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @return bool
-	 */
-	public function moveFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = true) {
-		if ($sourceStorage === $this) {
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-
-		// TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
-		// - call $this->storage->moveFromStorage() instead of $this->copyBetweenStorage
-		// - copy the file cache update from  $this->copyBetweenStorage to this method
-		// - copy the copyKeys() call from  $this->copyBetweenStorage to this method
-		// - remove $this->copyBetweenStorage
-
-		if (!$sourceStorage->isDeletable($sourceInternalPath)) {
-			return false;
-		}
-
-		$result = $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, true);
-		if ($result) {
-			if ($sourceStorage->is_dir($sourceInternalPath)) {
-				$result &= $sourceStorage->rmdir($sourceInternalPath);
-			} else {
-				$result &= $sourceStorage->unlink($sourceInternalPath);
-			}
-		}
-		return $result;
-	}
-
-
-	/**
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @param bool $isRename
-	 * @return bool
-	 */
-	public function copyFromStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false, $isRename = false) {
-
-		// TODO clean this up once the underlying moveFromStorage in OC\Files\Storage\Wrapper\Common is fixed:
-		// - call $this->storage->copyFromStorage() instead of $this->copyBetweenStorage
-		// - copy the file cache update from  $this->copyBetweenStorage to this method
-		// - copy the copyKeys() call from  $this->copyBetweenStorage to this method
-		// - remove $this->copyBetweenStorage
-
-		return $this->copyBetweenStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename);
-	}
-
-	/**
-	 * Update the encrypted cache version in the database
-	 *
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $isRename
-	 */
-	private function updateEncryptedVersion(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename) {
-		$isEncrypted = $this->encryptionManager->isEnabled() && $this->mount->getOption('encrypt', true) ? 1 : 0;
-		$cacheInformation = [
-			'encrypted' => (bool)$isEncrypted,
-		];
-		if($isEncrypted === 1) {
-			$encryptedVersion = $sourceStorage->getCache()->get($sourceInternalPath)['encryptedVersion'];
-
-			// In case of a move operation from an unencrypted to an encrypted
-			// storage the old encrypted version would stay with "0" while the
-			// correct value would be "1". Thus we manually set the value to "1"
-			// for those cases.
-			// See also https://github.com/owncloud/core/issues/23078
-			if($encryptedVersion === 0) {
-				$encryptedVersion = 1;
-			}
-
-			$cacheInformation['encryptedVersion'] = $encryptedVersion;
-		}
-
-		// in case of a rename we need to manipulate the source cache because
-		// this information will be kept for the new target
-		if ($isRename) {
-			$sourceStorage->getCache()->put($sourceInternalPath, $cacheInformation);
-		} else {
-			$this->getCache()->put($targetInternalPath, $cacheInformation);
-		}
-	}
-
-	/**
-	 * copy file between two storages
-	 *
-	 * @param Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @param bool $preserveMtime
-	 * @param bool $isRename
-	 * @return bool
-	 * @throws \Exception
-	 */
-	private function copyBetweenStorage(Storage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime, $isRename) {
-
-		// for versions we have nothing to do, because versions should always use the
-		// key from the original file. Just create a 1:1 copy and done
-		if ($this->isVersion($targetInternalPath) ||
-			$this->isVersion($sourceInternalPath)) {
-			// remember that we try to create a version so that we can detect it during
-			// fopen($sourceInternalPath) and by-pass the encryption in order to
-			// create a 1:1 copy of the file
-			$this->arrayCache->set('encryption_copy_version_' . $sourceInternalPath, true);
-			$result = $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-			$this->arrayCache->remove('encryption_copy_version_' . $sourceInternalPath);
-			if ($result) {
-				$info = $this->getCache('', $sourceStorage)->get($sourceInternalPath);
-				// make sure that we update the unencrypted size for the version
-				if (isset($info['encrypted']) && $info['encrypted'] === true) {
-					$this->updateUnencryptedSize(
-						$this->getFullPath($targetInternalPath),
-						$info['size']
-					);
-				}
-				$this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
-			}
-			return $result;
-		}
-
-		// first copy the keys that we reuse the existing file key on the target location
-		// and don't create a new one which would break versions for example.
-		$mount = $this->mountManager->findByStorageId($sourceStorage->getId());
-		if (count($mount) === 1) {
-			$mountPoint = $mount[0]->getMountPoint();
-			$source = $mountPoint . '/' . $sourceInternalPath;
-			$target = $this->getFullPath($targetInternalPath);
-			$this->copyKeys($source, $target);
-		} else {
-			$this->logger->error('Could not find mount point, can\'t keep encryption keys');
-		}
-
-		if ($sourceStorage->is_dir($sourceInternalPath)) {
-			$dh = $sourceStorage->opendir($sourceInternalPath);
-			$result = $this->mkdir($targetInternalPath);
-			if (is_resource($dh)) {
-				while ($result and ($file = readdir($dh)) !== false) {
-					if (!Filesystem::isIgnoredDir($file)) {
-						$result &= $this->copyFromStorage($sourceStorage, $sourceInternalPath . '/' . $file, $targetInternalPath . '/' . $file, false, $isRename);
-					}
-				}
-			}
-		} else {
-			try {
-				$source = $sourceStorage->fopen($sourceInternalPath, 'r');
-				$target = $this->fopen($targetInternalPath, 'w');
-				list(, $result) = \OC_Helper::streamCopy($source, $target);
-				fclose($source);
-				fclose($target);
-			} catch (\Exception $e) {
-				fclose($source);
-				fclose($target);
-				throw $e;
-			}
-			if($result) {
-				if ($preserveMtime) {
-					$this->touch($targetInternalPath, $sourceStorage->filemtime($sourceInternalPath));
-				}
-				$this->updateEncryptedVersion($sourceStorage, $sourceInternalPath, $targetInternalPath, $isRename);
-			} else {
-				// delete partially written target file
-				$this->unlink($targetInternalPath);
-				// delete cache entry that was created by fopen
-				$this->getCache()->remove($targetInternalPath);
-			}
-		}
-		return (bool)$result;
-
-	}
-
-	/**
-	 * get the path to a local version of the file.
-	 * The local version of the file can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		if ($this->encryptionManager->isEnabled()) {
-			$cachedFile = $this->getCachedFile($path);
-			if (is_string($cachedFile)) {
-				return $cachedFile;
-			}
-		}
-		return $this->storage->getLocalFile($path);
-	}
-
-	/**
-	 * Returns the wrapped storage's value for isLocal()
-	 *
-	 * @return bool wrapped storage's isLocal() value
-	 */
-	public function isLocal() {
-		if ($this->encryptionManager->isEnabled()) {
-			return false;
-		}
-		return $this->storage->isLocal();
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.stat.php
-	 * only the following keys are required in the result: size and mtime
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function stat($path) {
-		$stat = $this->storage->stat($path);
-		$fileSize = $this->filesize($path);
-		$stat['size'] = $fileSize;
-		$stat[7] = $fileSize;
-		return $stat;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.hash.php
-	 *
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $path, $raw = false) {
-		$fh = $this->fopen($path, 'rb');
-		$ctx = hash_init($type);
-		hash_update_stream($ctx, $fh);
-		fclose($fh);
-		return hash_final($ctx, $raw);
-	}
-
-	/**
-	 * return full path, including mount point
-	 *
-	 * @param string $path relative to mount point
-	 * @return string full path including mount point
-	 */
-	protected function getFullPath($path) {
-		return Filesystem::normalizePath($this->mountPoint . '/' . $path);
-	}
-
-	/**
-	 * read first block of encrypted file, typically this will contain the
-	 * encryption header
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	protected function readFirstBlock($path) {
-		$firstBlock = '';
-		if ($this->storage->file_exists($path)) {
-			$handle = $this->storage->fopen($path, 'r');
-			$firstBlock = fread($handle, $this->util->getHeaderSize());
-			fclose($handle);
-		}
-		return $firstBlock;
-	}
-
-	/**
-	 * return header size of given file
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	protected function getHeaderSize($path) {
-		$headerSize = 0;
-		$realFile = $this->util->stripPartialFileExtension($path);
-		if ($this->storage->file_exists($realFile)) {
-			$path = $realFile;
-		}
-		$firstBlock = $this->readFirstBlock($path);
-
-		if (substr($firstBlock, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
-			$headerSize = $this->util->getHeaderSize();
-		}
-
-		return $headerSize;
-	}
-
-	/**
-	 * parse raw header to array
-	 *
-	 * @param string $rawHeader
-	 * @return array
-	 */
-	protected function parseRawHeader($rawHeader) {
-		$result = array();
-		if (substr($rawHeader, 0, strlen(Util::HEADER_START)) === Util::HEADER_START) {
-			$header = $rawHeader;
-			$endAt = strpos($header, Util::HEADER_END);
-			if ($endAt !== false) {
-				$header = substr($header, 0, $endAt + strlen(Util::HEADER_END));
-
-				// +1 to not start with an ':' which would result in empty element at the beginning
-				$exploded = explode(':', substr($header, strlen(Util::HEADER_START)+1));
-
-				$element = array_shift($exploded);
-				while ($element !== Util::HEADER_END) {
-					$result[$element] = array_shift($exploded);
-					$element = array_shift($exploded);
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * read header from file
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	protected function getHeader($path) {
-		$realFile = $this->util->stripPartialFileExtension($path);
-		if ($this->storage->file_exists($realFile)) {
-			$path = $realFile;
-		}
-
-		$firstBlock = $this->readFirstBlock($path);
-		$result = $this->parseRawHeader($firstBlock);
-
-		// if the header doesn't contain a encryption module we check if it is a
-		// legacy file. If true, we add the default encryption module
-		if (!isset($result[Util::HEADER_ENCRYPTION_MODULE_KEY])) {
-			if (!empty($result)) {
-				$result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
-			} else {
-				// if the header was empty we have to check first if it is a encrypted file at all
-				$info = $this->getCache()->get($path);
-				if (isset($info['encrypted']) && $info['encrypted'] === true) {
-					$result[Util::HEADER_ENCRYPTION_MODULE_KEY] = 'OC_DEFAULT_MODULE';
-				}
-			}
-		}
-
-		return $result;
-	}
-
-	/**
-	 * read encryption module needed to read/write the file located at $path
-	 *
-	 * @param string $path
-	 * @return null|\OCP\Encryption\IEncryptionModule
-	 * @throws ModuleDoesNotExistsException
-	 * @throws \Exception
-	 */
-	protected function getEncryptionModule($path) {
-		$encryptionModule = null;
-		$header = $this->getHeader($path);
-		$encryptionModuleId = $this->util->getEncryptionModuleId($header);
-		if (!empty($encryptionModuleId)) {
-			try {
-				$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
-			} catch (ModuleDoesNotExistsException $e) {
-				$this->logger->critical('Encryption module defined in "' . $path . '" not loaded!');
-				throw $e;
-			}
-		}
-		return $encryptionModule;
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $unencryptedSize
-	 */
-	public function updateUnencryptedSize($path, $unencryptedSize) {
-		$this->unencryptedSize[$path] = $unencryptedSize;
-	}
-
-	/**
-	 * copy keys to new location
-	 *
-	 * @param string $source path relative to data/
-	 * @param string $target path relative to data/
-	 * @return bool
-	 */
-	protected function copyKeys($source, $target) {
-		if (!$this->util->isExcluded($source)) {
-			return $this->keyStorage->copyKeys($source, $target);
-		}
-
-		return false;
-	}
-
-	/**
-	 * check if path points to a files version
-	 *
-	 * @param $path
-	 * @return bool
-	 */
-	protected function isVersion($path) {
-		$normalized = Filesystem::normalizePath($path);
-		return substr($normalized, 0, strlen('/files_versions/')) === '/files_versions/';
-	}
-
-}
diff --git a/lib/private/files/storage/wrapper/jail.php b/lib/private/files/storage/wrapper/jail.php
deleted file mode 100644
index e8063f670c5..00000000000
--- a/lib/private/files/storage/wrapper/jail.php
+++ /dev/null
@@ -1,489 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\Wrapper;
-
-use OC\Files\Cache\Wrapper\CacheJail;
-use OCP\Lock\ILockingProvider;
-
-/**
- * Jail to a subdirectory of the wrapped storage
- *
- * This restricts access to a subfolder of the wrapped storage with the subfolder becoming the root folder new storage
- */
-class Jail extends Wrapper {
-	/**
-	 * @var string
-	 */
-	protected $rootPath;
-
-	/**
-	 * @param array $arguments ['storage' => $storage, 'mask' => $root]
-	 *
-	 * $storage: The storage that will be wrapper
-	 * $root: The folder in the wrapped storage that will become the root folder of the wrapped storage
-	 */
-	public function __construct($arguments) {
-		parent::__construct($arguments);
-		$this->rootPath = $arguments['root'];
-	}
-
-	public function getSourcePath($path) {
-		if ($path === '') {
-			return $this->rootPath;
-		} else {
-			return $this->rootPath . '/' . $path;
-		}
-	}
-
-	public function getId() {
-		return 'link:' . parent::getId() . ':' . $this->rootPath;
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.mkdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function mkdir($path) {
-		return $this->storage->mkdir($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rmdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function rmdir($path) {
-		return $this->storage->rmdir($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.opendir.php
-	 *
-	 * @param string $path
-	 * @return resource
-	 */
-	public function opendir($path) {
-		return $this->storage->opendir($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.is_dir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_dir($path) {
-		return $this->storage->is_dir($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.is_file.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_file($path) {
-		return $this->storage->is_file($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.stat.php
-	 * only the following keys are required in the result: size and mtime
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function stat($path) {
-		return $this->storage->stat($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filetype.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function filetype($path) {
-		return $this->storage->filetype($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filesize.php
-	 * The result for filesize when called on a folder is required to be 0
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filesize($path) {
-		return $this->storage->filesize($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file can be created in $path
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isCreatable($path) {
-		return $this->storage->isCreatable($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file can be read
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isReadable($path) {
-		return $this->storage->isReadable($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file can be written to
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isUpdatable($path) {
-		return $this->storage->isUpdatable($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file can be deleted
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isDeletable($path) {
-		return $this->storage->isDeletable($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file can be shared
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isSharable($path) {
-		return $this->storage->isSharable($this->getSourcePath($path));
-	}
-
-	/**
-	 * get the full permissions of a path.
-	 * Should return a combination of the PERMISSION_ constants defined in lib/public/constants.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function getPermissions($path) {
-		return $this->storage->getPermissions($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_exists.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function file_exists($path) {
-		return $this->storage->file_exists($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filemtime.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filemtime($path) {
-		return $this->storage->filemtime($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_get_contents.php
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function file_get_contents($path) {
-		return $this->storage->file_get_contents($this->getSourcePath($path));
-	}
-
-	/**
-	 * 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) {
-		return $this->storage->file_put_contents($this->getSourcePath($path), $data);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.unlink.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function unlink($path) {
-		return $this->storage->unlink($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rename.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function rename($path1, $path2) {
-		return $this->storage->rename($this->getSourcePath($path1), $this->getSourcePath($path2));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function copy($path1, $path2) {
-		return $this->storage->copy($this->getSourcePath($path1), $this->getSourcePath($path2));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	public function fopen($path, $mode) {
-		return $this->storage->fopen($this->getSourcePath($path), $mode);
-	}
-
-	/**
-	 * get the mimetype for a file or folder
-	 * The mimetype for a folder is required to be "httpd/unix-directory"
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getMimeType($path) {
-		return $this->storage->getMimeType($this->getSourcePath($path));
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.hash.php
-	 *
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $path, $raw = false) {
-		return $this->storage->hash($type, $this->getSourcePath($path), $raw);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.free_space.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function free_space($path) {
-		return $this->storage->free_space($this->getSourcePath($path));
-	}
-
-	/**
-	 * search for occurrences of $query in file names
-	 *
-	 * @param string $query
-	 * @return array
-	 */
-	public function search($query) {
-		return $this->storage->search($query);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.touch.php
-	 * If the backend does not support the operation, false should be returned
-	 *
-	 * @param string $path
-	 * @param int $mtime
-	 * @return bool
-	 */
-	public function touch($path, $mtime = null) {
-		return $this->storage->touch($this->getSourcePath($path), $mtime);
-	}
-
-	/**
-	 * get the path to a local version of the file.
-	 * The local version of the file can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		return $this->storage->getLocalFile($this->getSourcePath($path));
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 *
-	 * hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed.
-	 * returning true for other changes in the folder is optional
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->storage->hasUpdated($this->getSourcePath($path), $time);
-	}
-
-	/**
-	 * get a cache instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
-	 * @return \OC\Files\Cache\Cache
-	 */
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		$sourceCache = $this->storage->getCache($this->getSourcePath($path), $storage);
-		return new CacheJail($sourceCache, $this->rootPath);
-	}
-
-	/**
-	 * get the user id of the owner of a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getOwner($path) {
-		return $this->storage->getOwner($this->getSourcePath($path));
-	}
-
-	/**
-	 * get a watcher instance for the cache
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Watcher
-	 */
-	public function getWatcher($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getWatcher($this->getSourcePath($path), $storage);
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		return $this->storage->getETag($this->getSourcePath($path));
-	}
-
-	/**
-	 * @param string $path
-	 * @return array
-	 */
-	public function getMetaData($path) {
-		return $this->storage->getMetaData($this->getSourcePath($path));
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type, ILockingProvider $provider) {
-		$this->storage->acquireLock($this->getSourcePath($path), $type, $provider);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function releaseLock($path, $type, ILockingProvider $provider) {
-		$this->storage->releaseLock($this->getSourcePath($path), $type, $provider);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function changeLock($path, $type, ILockingProvider $provider) {
-		$this->storage->changeLock($this->getSourcePath($path), $type, $provider);
-	}
-
-	/**
-	 * Resolve the path for the source of the share
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function resolvePath($path) {
-		return [$this->storage, $this->getSourcePath($path)];
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
-			return $this->copy($sourceInternalPath, $targetInternalPath);
-		}
-		return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $this->getSourcePath($targetInternalPath));
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-		return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $this->getSourcePath($targetInternalPath));
-	}
-}
diff --git a/lib/private/files/storage/wrapper/permissionsmask.php b/lib/private/files/storage/wrapper/permissionsmask.php
deleted file mode 100644
index 01dd78d418c..00000000000
--- a/lib/private/files/storage/wrapper/permissionsmask.php
+++ /dev/null
@@ -1,131 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\Wrapper;
-
-use OC\Files\Cache\Wrapper\CachePermissionsMask;
-use OCP\Constants;
-
-/**
- * Mask the permissions of a storage
- *
- * This can be used to restrict update, create, delete and/or share permissions of a storage
- *
- * Note that the read permissions can't be masked
- */
-class PermissionsMask extends Wrapper {
-	/**
-	 * @var int the permissions bits we want to keep
-	 */
-	private $mask;
-
-	/**
-	 * @param array $arguments ['storage' => $storage, 'mask' => $mask]
-	 *
-	 * $storage: The storage the permissions mask should be applied on
-	 * $mask: The permission bits that should be kept, a combination of the \OCP\Constant::PERMISSION_ constants
-	 */
-	public function __construct($arguments) {
-		parent::__construct($arguments);
-		$this->mask = $arguments['mask'];
-	}
-
-	private function checkMask($permissions) {
-		return ($this->mask & $permissions) === $permissions;
-	}
-
-	public function isUpdatable($path) {
-		return $this->checkMask(Constants::PERMISSION_UPDATE) and parent::isUpdatable($path);
-	}
-
-	public function isCreatable($path) {
-		return $this->checkMask(Constants::PERMISSION_CREATE) and parent::isCreatable($path);
-	}
-
-	public function isDeletable($path) {
-		return $this->checkMask(Constants::PERMISSION_DELETE) and parent::isDeletable($path);
-	}
-
-	public function isSharable($path) {
-		return $this->checkMask(Constants::PERMISSION_SHARE) and parent::isSharable($path);
-	}
-
-	public function getPermissions($path) {
-		return $this->storage->getPermissions($path) & $this->mask;
-	}
-
-	public function rename($path1, $path2) {
-		return $this->checkMask(Constants::PERMISSION_UPDATE) and parent::rename($path1, $path2);
-	}
-
-	public function copy($path1, $path2) {
-		return $this->checkMask(Constants::PERMISSION_CREATE) and parent::copy($path1, $path2);
-	}
-
-	public function touch($path, $mtime = null) {
-		$permissions = $this->file_exists($path) ? Constants::PERMISSION_UPDATE : Constants::PERMISSION_CREATE;
-		return $this->checkMask($permissions) and parent::touch($path, $mtime);
-	}
-
-	public function mkdir($path) {
-		return $this->checkMask(Constants::PERMISSION_CREATE) and parent::mkdir($path);
-	}
-
-	public function rmdir($path) {
-		return $this->checkMask(Constants::PERMISSION_DELETE) and parent::rmdir($path);
-	}
-
-	public function unlink($path) {
-		return $this->checkMask(Constants::PERMISSION_DELETE) and parent::unlink($path);
-	}
-
-	public function file_put_contents($path, $data) {
-		$permissions = $this->file_exists($path) ? Constants::PERMISSION_UPDATE : Constants::PERMISSION_CREATE;
-		return $this->checkMask($permissions) and parent::file_put_contents($path, $data);
-	}
-
-	public function fopen($path, $mode) {
-		if ($mode === 'r' or $mode === 'rb') {
-			return parent::fopen($path, $mode);
-		} else {
-			$permissions = $this->file_exists($path) ? Constants::PERMISSION_UPDATE : Constants::PERMISSION_CREATE;
-			return $this->checkMask($permissions) ? parent::fopen($path, $mode) : false;
-		}
-	}
-
-	/**
-	 * get a cache instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
-	 * @return \OC\Files\Cache\Cache
-	 */
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		$sourceCache = parent::getCache($path, $storage);
-		return new CachePermissionsMask($sourceCache, $this->mask);
-	}
-}
diff --git a/lib/private/files/storage/wrapper/quota.php b/lib/private/files/storage/wrapper/quota.php
deleted file mode 100644
index 500677b092e..00000000000
--- a/lib/private/files/storage/wrapper/quota.php
+++ /dev/null
@@ -1,200 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\Wrapper;
-
-use OCP\Files\Cache\ICacheEntry;
-
-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;
-		}
-	}
-}
diff --git a/lib/private/files/storage/wrapper/wrapper.php b/lib/private/files/storage/wrapper/wrapper.php
deleted file mode 100644
index 21d7db1099b..00000000000
--- a/lib/private/files/storage/wrapper/wrapper.php
+++ /dev/null
@@ -1,608 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Storage\Wrapper;
-
-use OCP\Files\InvalidPathException;
-use OCP\Files\Storage\ILockingStorage;
-use OCP\Lock\ILockingProvider;
-
-class Wrapper implements \OC\Files\Storage\Storage, ILockingStorage {
-	/**
-	 * @var \OC\Files\Storage\Storage $storage
-	 */
-	protected $storage;
-
-	public $cache;
-	public $scanner;
-	public $watcher;
-	public $propagator;
-	public $updater;
-
-	/**
-	 * @param array $parameters
-	 */
-	public function __construct($parameters) {
-		$this->storage = $parameters['storage'];
-	}
-
-	/**
-	 * @return \OC\Files\Storage\Storage
-	 */
-	public function getWrapperStorage() {
-		return $this->storage;
-	}
-
-	/**
-	 * Get the identifier for the storage,
-	 * the returned id should be the same for every storage object that is created with the same parameters
-	 * and two storage objects with the same id should refer to two storages that display the same files.
-	 *
-	 * @return string
-	 */
-	public function getId() {
-		return $this->storage->getId();
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.mkdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function mkdir($path) {
-		return $this->storage->mkdir($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rmdir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function rmdir($path) {
-		return $this->storage->rmdir($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.opendir.php
-	 *
-	 * @param string $path
-	 * @return resource
-	 */
-	public function opendir($path) {
-		return $this->storage->opendir($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.is_dir.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_dir($path) {
-		return $this->storage->is_dir($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.is_file.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function is_file($path) {
-		return $this->storage->is_file($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.stat.php
-	 * only the following keys are required in the result: size and mtime
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function stat($path) {
-		return $this->storage->stat($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filetype.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function filetype($path) {
-		return $this->storage->filetype($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filesize.php
-	 * The result for filesize when called on a folder is required to be 0
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filesize($path) {
-		return $this->storage->filesize($path);
-	}
-
-	/**
-	 * check if a file can be created in $path
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isCreatable($path) {
-		return $this->storage->isCreatable($path);
-	}
-
-	/**
-	 * check if a file can be read
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isReadable($path) {
-		return $this->storage->isReadable($path);
-	}
-
-	/**
-	 * check if a file can be written to
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isUpdatable($path) {
-		return $this->storage->isUpdatable($path);
-	}
-
-	/**
-	 * check if a file can be deleted
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isDeletable($path) {
-		return $this->storage->isDeletable($path);
-	}
-
-	/**
-	 * check if a file can be shared
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function isSharable($path) {
-		return $this->storage->isSharable($path);
-	}
-
-	/**
-	 * get the full permissions of a path.
-	 * Should return a combination of the PERMISSION_ constants defined in lib/public/constants.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function getPermissions($path) {
-		return $this->storage->getPermissions($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_exists.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function file_exists($path) {
-		return $this->storage->file_exists($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.filemtime.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function filemtime($path) {
-		return $this->storage->filemtime($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.file_get_contents.php
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function file_get_contents($path) {
-		return $this->storage->file_get_contents($path);
-	}
-
-	/**
-	 * 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) {
-		return $this->storage->file_put_contents($path, $data);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.unlink.php
-	 *
-	 * @param string $path
-	 * @return bool
-	 */
-	public function unlink($path) {
-		return $this->storage->unlink($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.rename.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function rename($path1, $path2) {
-		return $this->storage->rename($path1, $path2);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.copy.php
-	 *
-	 * @param string $path1
-	 * @param string $path2
-	 * @return bool
-	 */
-	public function copy($path1, $path2) {
-		return $this->storage->copy($path1, $path2);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.fopen.php
-	 *
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	public function fopen($path, $mode) {
-		return $this->storage->fopen($path, $mode);
-	}
-
-	/**
-	 * get the mimetype for a file or folder
-	 * The mimetype for a folder is required to be "httpd/unix-directory"
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getMimeType($path) {
-		return $this->storage->getMimeType($path);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.hash.php
-	 *
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return string
-	 */
-	public function hash($type, $path, $raw = false) {
-		return $this->storage->hash($type, $path, $raw);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.free_space.php
-	 *
-	 * @param string $path
-	 * @return int
-	 */
-	public function free_space($path) {
-		return $this->storage->free_space($path);
-	}
-
-	/**
-	 * search for occurrences of $query in file names
-	 *
-	 * @param string $query
-	 * @return array
-	 */
-	public function search($query) {
-		return $this->storage->search($query);
-	}
-
-	/**
-	 * see http://php.net/manual/en/function.touch.php
-	 * If the backend does not support the operation, false should be returned
-	 *
-	 * @param string $path
-	 * @param int $mtime
-	 * @return bool
-	 */
-	public function touch($path, $mtime = null) {
-		return $this->storage->touch($path, $mtime);
-	}
-
-	/**
-	 * get the path to a local version of the file.
-	 * The local version of the file can be temporary and doesn't have to be persistent across requests
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		return $this->storage->getLocalFile($path);
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 *
-	 * hasUpdated for folders should return at least true if a file inside the folder is add, removed or renamed.
-	 * returning true for other changes in the folder is optional
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->storage->hasUpdated($path, $time);
-	}
-
-	/**
-	 * get a cache instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the cache
-	 * @return \OC\Files\Cache\Cache
-	 */
-	public function getCache($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getCache($path, $storage);
-	}
-
-	/**
-	 * get a scanner instance for the storage
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the scanner
-	 * @return \OC\Files\Cache\Scanner
-	 */
-	public function getScanner($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getScanner($path, $storage);
-	}
-
-
-	/**
-	 * get the user id of the owner of a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getOwner($path) {
-		return $this->storage->getOwner($path);
-	}
-
-	/**
-	 * get a watcher instance for the cache
-	 *
-	 * @param string $path
-	 * @param \OC\Files\Storage\Storage (optional) the storage to pass to the watcher
-	 * @return \OC\Files\Cache\Watcher
-	 */
-	public function getWatcher($path = '', $storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getWatcher($path, $storage);
-	}
-
-	public function getPropagator($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getPropagator($storage);
-	}
-
-	public function getUpdater($storage = null) {
-		if (!$storage) {
-			$storage = $this;
-		}
-		return $this->storage->getUpdater($storage);
-	}
-
-	/**
-	 * @return \OC\Files\Cache\Storage
-	 */
-	public function getStorageCache() {
-		return $this->storage->getStorageCache();
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		return $this->storage->getETag($path);
-	}
-
-	/**
-	 * Returns true
-	 *
-	 * @return true
-	 */
-	public function test() {
-		return $this->storage->test();
-	}
-
-	/**
-	 * Returns the wrapped storage's value for isLocal()
-	 *
-	 * @return bool wrapped storage's isLocal() value
-	 */
-	public function isLocal() {
-		return $this->storage->isLocal();
-	}
-
-	/**
-	 * Check if the storage is an instance of $class or is a wrapper for a storage that is an instance of $class
-	 *
-	 * @param string $class
-	 * @return bool
-	 */
-	public function instanceOfStorage($class) {
-		return is_a($this, $class) or $this->storage->instanceOfStorage($class);
-	}
-
-	/**
-	 * Pass any methods custom to specific storage implementations to the wrapped storage
-	 *
-	 * @param string $method
-	 * @param array $args
-	 * @return mixed
-	 */
-	public function __call($method, $args) {
-		return call_user_func_array(array($this->storage, $method), $args);
-	}
-
-	/**
-	 * A custom storage implementation can return an url for direct download of a give file.
-	 *
-	 * For now the returned array can hold the parameter url - in future more attributes might follow.
-	 *
-	 * @param string $path
-	 * @return array
-	 */
-	public function getDirectDownload($path) {
-		return $this->storage->getDirectDownload($path);
-	}
-
-	/**
-	 * Get availability of the storage
-	 *
-	 * @return array [ available, last_checked ]
-	 */
-	public function getAvailability() {
-		return $this->storage->getAvailability();
-	}
-
-	/**
-	 * Set availability of the storage
-	 *
-	 * @param bool $isAvailable
-	 */
-	public function setAvailability($isAvailable) {
-		$this->storage->setAvailability($isAvailable);
-	}
-
-	/**
-	 * @param string $path the path of the target folder
-	 * @param string $fileName the name of the file itself
-	 * @return void
-	 * @throws InvalidPathException
-	 */
-	public function verifyPath($path, $fileName) {
-		$this->storage->verifyPath($path, $fileName);
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function copyFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
-			return $this->copy($sourceInternalPath, $targetInternalPath);
-		}
-
-		return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-	}
-
-	/**
-	 * @param \OCP\Files\Storage $sourceStorage
-	 * @param string $sourceInternalPath
-	 * @param string $targetInternalPath
-	 * @return bool
-	 */
-	public function moveFromStorage(\OCP\Files\Storage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($sourceStorage === $this) {
-			return $this->rename($sourceInternalPath, $targetInternalPath);
-		}
-
-		return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-	}
-
-	/**
-	 * @param string $path
-	 * @return array
-	 */
-	public function getMetaData($path) {
-		return $this->storage->getMetaData($path);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 * @throws \OCP\Lock\LockedException
-	 */
-	public function acquireLock($path, $type, ILockingProvider $provider) {
-		if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-			$this->storage->acquireLock($path, $type, $provider);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function releaseLock($path, $type, ILockingProvider $provider) {
-		if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-			$this->storage->releaseLock($path, $type, $provider);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param \OCP\Lock\ILockingProvider $provider
-	 */
-	public function changeLock($path, $type, ILockingProvider $provider) {
-		if ($this->storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-			$this->storage->changeLock($path, $type, $provider);
-		}
-	}
-}
diff --git a/lib/private/files/stream/close.php b/lib/private/files/stream/close.php
deleted file mode 100644
index 1c9b30705dd..00000000000
--- a/lib/private/files/stream/close.php
+++ /dev/null
@@ -1,118 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-/**
- * stream wrapper that provides a callback on stream close
- */
-class Close {
-	private static $callBacks = array();
-	private $path = '';
-	private $source;
-	private static $open = array();
-
-	public function stream_open($path, $mode, $options, &$opened_path) {
-		$path = substr($path, strlen('close://'));
-		$this->path = $path;
-		$this->source = fopen($path, $mode);
-		if (is_resource($this->source)) {
-			$this->meta = stream_get_meta_data($this->source);
-		}
-		self::$open[] = $path;
-		return is_resource($this->source);
-	}
-
-	public function stream_seek($offset, $whence = SEEK_SET) {
-		return fseek($this->source, $offset, $whence) === 0;
-	}
-
-	public function stream_tell() {
-		return ftell($this->source);
-	}
-
-	public function stream_read($count) {
-		return fread($this->source, $count);
-	}
-
-	public function stream_write($data) {
-		return fwrite($this->source, $data);
-	}
-
-	public function stream_set_option($option, $arg1, $arg2) {
-		switch ($option) {
-			case STREAM_OPTION_BLOCKING:
-				stream_set_blocking($this->source, $arg1);
-				break;
-			case STREAM_OPTION_READ_TIMEOUT:
-				stream_set_timeout($this->source, $arg1, $arg2);
-				break;
-			case STREAM_OPTION_WRITE_BUFFER:
-				stream_set_write_buffer($this->source, $arg1, $arg2);
-		}
-	}
-
-	public function stream_stat() {
-		return fstat($this->source);
-	}
-
-	public function stream_lock($mode) {
-		flock($this->source, $mode);
-	}
-
-	public function stream_flush() {
-		return fflush($this->source);
-	}
-
-	public function stream_eof() {
-		return feof($this->source);
-	}
-
-	public function url_stat($path) {
-		$path = substr($path, strlen('close://'));
-		if (file_exists($path)) {
-			return stat($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function stream_close() {
-		fclose($this->source);
-		if (isset(self::$callBacks[$this->path])) {
-			call_user_func(self::$callBacks[$this->path], $this->path);
-		}
-	}
-
-	public function unlink($path) {
-		$path = substr($path, strlen('close://'));
-		return unlink($path);
-	}
-
-	/**
-	 * @param string $path
-	 */
-	public static function registerCallback($path, $callback) {
-		self::$callBacks[$path] = $callback;
-	}
-}
diff --git a/lib/private/files/stream/dir.php b/lib/private/files/stream/dir.php
deleted file mode 100644
index 7489ee683a2..00000000000
--- a/lib/private/files/stream/dir.php
+++ /dev/null
@@ -1,66 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-class Dir {
-	private static $dirs = array();
-	private $name;
-	private $index;
-
-	public function dir_opendir($path, $options) {
-		$this->name = substr($path, strlen('fakedir://'));
-		$this->index = 0;
-		if (!isset(self::$dirs[$this->name])) {
-			self::$dirs[$this->name] = array();
-		}
-		return true;
-	}
-
-	public function dir_readdir() {
-		if ($this->index >= count(self::$dirs[$this->name])) {
-			return false;
-		}
-		$filename = self::$dirs[$this->name][$this->index];
-		$this->index++;
-		return $filename;
-	}
-
-	public function dir_closedir() {
-		$this->name = '';
-		return true;
-	}
-
-	public function dir_rewinddir() {
-		$this->index = 0;
-		return true;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string[] $content
-	 */
-	public static function register($path, $content) {
-		self::$dirs[$path] = $content;
-	}
-}
diff --git a/lib/private/files/stream/encryption.php b/lib/private/files/stream/encryption.php
deleted file mode 100644
index 772c9769bf7..00000000000
--- a/lib/private/files/stream/encryption.php
+++ /dev/null
@@ -1,500 +0,0 @@
-<?php
-/**
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author jknockaert <jasper@knockaert.nl>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-use Icewind\Streams\Wrapper;
-use OC\Encryption\Exceptions\EncryptionHeaderKeyExistsException;
-
-class Encryption extends Wrapper {
-
-	/** @var \OC\Encryption\Util */
-	protected $util;
-
-	/** @var \OC\Encryption\File */
-	protected $file;
-
-	/** @var \OCP\Encryption\IEncryptionModule */
-	protected $encryptionModule;
-
-	/** @var \OC\Files\Storage\Storage */
-	protected $storage;
-
-	/** @var \OC\Files\Storage\Wrapper\Encryption */
-	protected $encryptionStorage;
-
-	/** @var string */
-	protected $internalPath;
-
-	/** @var string */
-	protected $cache;
-
-	/** @var integer */
-	protected $size;
-
-	/** @var integer */
-	protected $position;
-
-	/** @var integer */
-	protected $unencryptedSize;
-
-	/** @var integer */
-	protected $headerSize;
-
-	/** @var integer */
-	protected $unencryptedBlockSize;
-
-	/** @var array */
-	protected $header;
-
-	/** @var string */
-	protected $fullPath;
-
-	/** @var  bool */
-	protected $signed;
-
-	/**
-	 * header data returned by the encryption module, will be written to the file
-	 * in case of a write operation
-	 *
-	 * @var array
-	 */
-	protected $newHeader;
-
-	/**
-	 * user who perform the read/write operation null for public access
-	 *
-	 * @var string
-	 */
-	protected $uid;
-
-	/** @var bool */
-	protected $readOnly;
-
-	/** @var bool */
-	protected $writeFlag;
-
-	/** @var array */
-	protected $expectedContextProperties;
-
-	public function __construct() {
-		$this->expectedContextProperties = array(
-			'source',
-			'storage',
-			'internalPath',
-			'fullPath',
-			'encryptionModule',
-			'header',
-			'uid',
-			'file',
-			'util',
-			'size',
-			'unencryptedSize',
-			'encryptionStorage',
-			'headerSize',
-			'signed'
-		);
-	}
-
-
-	/**
-	 * Wraps a stream with the provided callbacks
-	 *
-	 * @param resource $source
-	 * @param string $internalPath relative to mount point
-	 * @param string $fullPath relative to data/
-	 * @param array $header
-	 * @param string $uid
-	 * @param \OCP\Encryption\IEncryptionModule $encryptionModule
-	 * @param \OC\Files\Storage\Storage $storage
-	 * @param \OC\Files\Storage\Wrapper\Encryption $encStorage
-	 * @param \OC\Encryption\Util $util
-	 * @param \OC\Encryption\File $file
-	 * @param string $mode
-	 * @param int $size
-	 * @param int $unencryptedSize
-	 * @param int $headerSize
-	 * @param bool $signed
-	 * @param string $wrapper stream wrapper class
-	 * @return resource
-	 *
-	 * @throws \BadMethodCallException
-	 */
-	public static function wrap($source, $internalPath, $fullPath, array $header,
-								$uid,
-								\OCP\Encryption\IEncryptionModule $encryptionModule,
-								\OC\Files\Storage\Storage $storage,
-								\OC\Files\Storage\Wrapper\Encryption $encStorage,
-								\OC\Encryption\Util $util,
-								 \OC\Encryption\File $file,
-								$mode,
-								$size,
-								$unencryptedSize,
-								$headerSize,
-								$signed,
-								$wrapper =  'OC\Files\Stream\Encryption') {
-
-		$context = stream_context_create(array(
-			'ocencryption' => array(
-				'source' => $source,
-				'storage' => $storage,
-				'internalPath' => $internalPath,
-				'fullPath' => $fullPath,
-				'encryptionModule' => $encryptionModule,
-				'header' => $header,
-				'uid' => $uid,
-				'util' => $util,
-				'file' => $file,
-				'size' => $size,
-				'unencryptedSize' => $unencryptedSize,
-				'encryptionStorage' => $encStorage,
-				'headerSize' => $headerSize,
-				'signed' => $signed
-			)
-		));
-
-		return self::wrapSource($source, $context, 'ocencryption', $wrapper, $mode);
-	}
-
-	/**
-	 * add stream wrapper
-	 *
-	 * @param resource $source
-	 * @param string $mode
-	 * @param resource $context
-	 * @param string $protocol
-	 * @param string $class
-	 * @return resource
-	 * @throws \BadMethodCallException
-	 */
-	protected static function wrapSource($source, $context, $protocol, $class, $mode = 'r+') {
-		try {
-			stream_wrapper_register($protocol, $class);
-			if (@rewinddir($source) === false) {
-				$wrapped = fopen($protocol . '://', $mode, false, $context);
-			} else {
-				$wrapped = opendir($protocol . '://', $context);
-			}
-		} catch (\BadMethodCallException $e) {
-			stream_wrapper_unregister($protocol);
-			throw $e;
-		}
-		stream_wrapper_unregister($protocol);
-		return $wrapped;
-	}
-
-	/**
-	 * Load the source from the stream context and return the context options
-	 *
-	 * @param string $name
-	 * @return array
-	 * @throws \BadMethodCallException
-	 */
-	protected function loadContext($name) {
-		$context = parent::loadContext($name);
-
-		foreach ($this->expectedContextProperties as $property) {
-			if (array_key_exists($property, $context)) {
-				$this->{$property} = $context[$property];
-			} else {
-				throw new \BadMethodCallException('Invalid context, "' . $property . '" options not set');
-			}
-		}
-		return $context;
-
-	}
-
-	public function stream_open($path, $mode, $options, &$opened_path) {
-		$this->loadContext('ocencryption');
-
-		$this->position = 0;
-		$this->cache = '';
-		$this->writeFlag = false;
-		$this->unencryptedBlockSize = $this->encryptionModule->getUnencryptedBlockSize($this->signed);
-
-		if (
-			$mode === 'w'
-			|| $mode === 'w+'
-			|| $mode === 'wb'
-			|| $mode === 'wb+'
-			|| $mode === 'r+'
-			|| $mode === 'rb+'
-		) {
-			$this->readOnly = false;
-		} else {
-			$this->readOnly = true;
-		}
-
-		$sharePath = $this->fullPath;
-		if (!$this->storage->file_exists($this->internalPath)) {
-			$sharePath = dirname($sharePath);
-		}
-
-		$accessList = $this->file->getAccessList($sharePath);
-		$this->newHeader = $this->encryptionModule->begin($this->fullPath, $this->uid, $mode, $this->header, $accessList);
-
-		if (
-			$mode === 'w'
-			|| $mode === 'w+'
-			|| $mode === 'wb'
-			|| $mode === 'wb+'
-		) {
-			// We're writing a new file so start write counter with 0 bytes
-			$this->unencryptedSize = 0;
-			$this->writeHeader();
-			$this->headerSize = $this->util->getHeaderSize();
-			$this->size = $this->headerSize;
-		} else {
-			$this->skipHeader();
-		}
-
-		return true;
-
-	}
-
-	public function stream_eof() {
-		return $this->position >= $this->unencryptedSize;
-	}
-
-	public function stream_read($count) {
-
-		$result = '';
-
-		$count = min($count, $this->unencryptedSize - $this->position);
-		while ($count > 0) {
-			$remainingLength = $count;
-			// update the cache of the current block
-			$this->readCache();
-			// determine the relative position in the current block
-			$blockPosition = ($this->position % $this->unencryptedBlockSize);
-			// if entire read inside current block then only position needs to be updated
-			if ($remainingLength < ($this->unencryptedBlockSize - $blockPosition)) {
-				$result .= substr($this->cache, $blockPosition, $remainingLength);
-				$this->position += $remainingLength;
-				$count = 0;
-				// otherwise remainder of current block is fetched, the block is flushed and the position updated
-			} else {
-				$result .= substr($this->cache, $blockPosition);
-				$this->flush();
-				$this->position += ($this->unencryptedBlockSize - $blockPosition);
-				$count -= ($this->unencryptedBlockSize - $blockPosition);
-			}
-		}
-		return $result;
-
-	}
-
-	public function stream_write($data) {
-
-		$length = 0;
-		// loop over $data to fit it in 6126 sized unencrypted blocks
-		while (isset($data[0])) {
-			$remainingLength = strlen($data);
-
-			// set the cache to the current 6126 block
-			$this->readCache();
-
-			// for seekable streams the pointer is moved back to the beginning of the encrypted block
-			// flush will start writing there when the position moves to another block
-			$positionInFile = (int)floor($this->position / $this->unencryptedBlockSize) *
-				$this->util->getBlockSize() + $this->headerSize;
-			$resultFseek = $this->parentStreamSeek($positionInFile);
-
-			// only allow writes on seekable streams, or at the end of the encrypted stream
-			if (!($this->readOnly) && ($resultFseek || $positionInFile === $this->size)) {
-
-				// switch the writeFlag so flush() will write the block
-				$this->writeFlag = true;
-
-				// determine the relative position in the current block
-				$blockPosition = ($this->position % $this->unencryptedBlockSize);
-				// check if $data fits in current block
-				// if so, overwrite existing data (if any)
-				// update position and liberate $data
-				if ($remainingLength < ($this->unencryptedBlockSize - $blockPosition)) {
-					$this->cache = substr($this->cache, 0, $blockPosition)
-						. $data . substr($this->cache, $blockPosition + $remainingLength);
-					$this->position += $remainingLength;
-					$length += $remainingLength;
-					$data = '';
-					// if $data doesn't fit the current block, the fill the current block and reiterate
-					// after the block is filled, it is flushed and $data is updatedxxx
-				} else {
-					$this->cache = substr($this->cache, 0, $blockPosition) .
-						substr($data, 0, $this->unencryptedBlockSize - $blockPosition);
-					$this->flush();
-					$this->position += ($this->unencryptedBlockSize - $blockPosition);
-					$length += ($this->unencryptedBlockSize - $blockPosition);
-					$data = substr($data, $this->unencryptedBlockSize - $blockPosition);
-				}
-			} else {
-				$data = '';
-			}
-			$this->unencryptedSize = max($this->unencryptedSize, $this->position);
-		}
-		return $length;
-	}
-
-	public function stream_tell() {
-		return $this->position;
-	}
-
-	public function stream_seek($offset, $whence = SEEK_SET) {
-
-		$return = false;
-
-		switch ($whence) {
-			case SEEK_SET:
-				$newPosition = $offset;
-				break;
-			case SEEK_CUR:
-				$newPosition = $this->position + $offset;
-				break;
-			case SEEK_END:
-				$newPosition = $this->unencryptedSize + $offset;
-				break;
-			default:
-				return $return;
-		}
-
-		if ($newPosition > $this->unencryptedSize || $newPosition < 0) {
-			return $return;
-		}
-
-		$newFilePosition = floor($newPosition / $this->unencryptedBlockSize)
-			* $this->util->getBlockSize() + $this->headerSize;
-
-		$oldFilePosition = parent::stream_tell();
-		if ($this->parentStreamSeek($newFilePosition)) {
-			$this->parentStreamSeek($oldFilePosition);
-			$this->flush();
-			$this->parentStreamSeek($newFilePosition);
-			$this->position = $newPosition;
-			$return = true;
-		}
-		return $return;
-
-	}
-
-	public function stream_close() {
-		$this->flush('end');
-		$position = (int)floor($this->position/$this->unencryptedBlockSize);
-		$remainingData = $this->encryptionModule->end($this->fullPath, $position . 'end');
-		if ($this->readOnly === false) {
-			if(!empty($remainingData)) {
-				parent::stream_write($remainingData);
-			}
-			$this->encryptionStorage->updateUnencryptedSize($this->fullPath, $this->unencryptedSize);
-		}
-		return parent::stream_close();
-	}
-
-	/**
-	 * write block to file
-	 * @param string $positionPrefix
-	 */
-	protected function flush($positionPrefix = '') {
-		// write to disk only when writeFlag was set to 1
-		if ($this->writeFlag) {
-			// Disable the file proxies so that encryption is not
-			// automatically attempted when the file is written to disk -
-			// we are handling that separately here and we don't want to
-			// get into an infinite loop
-			$position = (int)floor($this->position/$this->unencryptedBlockSize);
-			$encrypted = $this->encryptionModule->encrypt($this->cache, $position . $positionPrefix);
-			$bytesWritten = parent::stream_write($encrypted);
-			$this->writeFlag = false;
-			// Check whether the write concerns the last block
-			// If so then update the encrypted filesize
-			// Note that the unencrypted pointer and filesize are NOT yet updated when flush() is called
-			// We recalculate the encrypted filesize as we do not know the context of calling flush()
-			$completeBlocksInFile=(int)floor($this->unencryptedSize/$this->unencryptedBlockSize);
-			if ($completeBlocksInFile === (int)floor($this->position/$this->unencryptedBlockSize)) {
-				$this->size = $this->util->getBlockSize() * $completeBlocksInFile;
-				$this->size += $bytesWritten;
-				$this->size += $this->headerSize;
-			}
-		}
-		// always empty the cache (otherwise readCache() will not fill it with the new block)
-		$this->cache = '';
-	}
-
-	/**
-	 * read block to file
-	 */
-	protected function readCache() {
-		// cache should always be empty string when this function is called
-		// don't try to fill the cache when trying to write at the end of the unencrypted file when it coincides with new block
-		if ($this->cache === '' && !($this->position === $this->unencryptedSize && ($this->position % $this->unencryptedBlockSize) === 0)) {
-			// Get the data from the file handle
-			$data = parent::stream_read($this->util->getBlockSize());
-			$position = (int)floor($this->position/$this->unencryptedBlockSize);
-			$numberOfChunks = (int)($this->unencryptedSize / $this->unencryptedBlockSize);
-			if($numberOfChunks === $position) {
-				$position .= 'end';
-			}
-			$this->cache = $this->encryptionModule->decrypt($data, $position);
-		}
-	}
-
-	/**
-	 * write header at beginning of encrypted file
-	 *
-	 * @return integer
-	 * @throws EncryptionHeaderKeyExistsException if header key is already in use
-	 */
-	protected function writeHeader() {
-		$header = $this->util->createHeader($this->newHeader, $this->encryptionModule);
-		return parent::stream_write($header);
-	}
-
-	/**
-	 * read first block to skip the header
-	 */
-	protected function skipHeader() {
-		parent::stream_read($this->headerSize);
-	}
-
-	/**
-	 * call stream_seek() from parent class
-	 *
-	 * @param integer $position
-	 * @return bool
-	 */
-	protected function parentStreamSeek($position) {
-		return parent::stream_seek($position);
-	}
-
-	/**
-	 * @param string $path
-	 * @param array $options
-	 * @return bool
-	 */
-	public function dir_opendir($path, $options) {
-		return false;
-	}
-
-}
diff --git a/lib/private/files/stream/oc.php b/lib/private/files/stream/oc.php
deleted file mode 100644
index 8439770e8fa..00000000000
--- a/lib/private/files/stream/oc.php
+++ /dev/null
@@ -1,153 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-/**
- * a stream wrappers for ownCloud's virtual filesystem
- */
-class OC {
-	/**
-	 * @var \OC\Files\View
-	 */
-	static private $rootView;
-
-	private $path;
-
-	/**
-	 * @var resource
-	 */
-	private $dirSource;
-
-	/**
-	 * @var resource
-	 */
-	private $fileSource;
-	private $meta;
-
-	private function setup(){
-		if (!self::$rootView) {
-			self::$rootView = new \OC\Files\View('');
-		}
-	}
-
-	public function stream_open($path, $mode, $options, &$opened_path) {
-		$this->setup();
-		$path = substr($path, strlen('oc://'));
-		$this->path = $path;
-		$this->fileSource = self::$rootView->fopen($path, $mode);
-		if (is_resource($this->fileSource)) {
-			$this->meta = stream_get_meta_data($this->fileSource);
-		}
-		return is_resource($this->fileSource);
-	}
-
-	public function stream_seek($offset, $whence = SEEK_SET) {
-		return fseek($this->fileSource, $offset, $whence) === 0;
-	}
-
-	public function stream_tell() {
-		return ftell($this->fileSource);
-	}
-
-	public function stream_read($count) {
-		return fread($this->fileSource, $count);
-	}
-
-	public function stream_write($data) {
-		return fwrite($this->fileSource, $data);
-	}
-
-	public function stream_set_option($option, $arg1, $arg2) {
-		switch ($option) {
-			case STREAM_OPTION_BLOCKING:
-				stream_set_blocking($this->fileSource, $arg1);
-				break;
-			case STREAM_OPTION_READ_TIMEOUT:
-				stream_set_timeout($this->fileSource, $arg1, $arg2);
-				break;
-			case STREAM_OPTION_WRITE_BUFFER:
-				stream_set_write_buffer($this->fileSource, $arg1, $arg2);
-		}
-	}
-
-	public function stream_stat() {
-		return fstat($this->fileSource);
-	}
-
-	public function stream_lock($mode) {
-		flock($this->fileSource, $mode);
-	}
-
-	public function stream_flush() {
-		return fflush($this->fileSource);
-	}
-
-	public function stream_eof() {
-		return feof($this->fileSource);
-	}
-
-	public function url_stat($path) {
-		$this->setup();
-		$path = substr($path, strlen('oc://'));
-		if (self::$rootView->file_exists($path)) {
-			return self::$rootView->stat($path);
-		} else {
-			return false;
-		}
-	}
-
-	public function stream_close() {
-		fclose($this->fileSource);
-	}
-
-	public function unlink($path) {
-		$this->setup();
-		$path = substr($path, strlen('oc://'));
-		return self::$rootView->unlink($path);
-	}
-
-	public function dir_opendir($path, $options) {
-		$this->setup();
-		$path = substr($path, strlen('oc://'));
-		$this->path = $path;
-		$this->dirSource = self::$rootView->opendir($path);
-		if (is_resource($this->dirSource)) {
-			$this->meta = stream_get_meta_data($this->dirSource);
-		}
-		return is_resource($this->dirSource);
-	}
-
-	public function dir_readdir() {
-		return readdir($this->dirSource);
-	}
-
-	public function dir_closedir() {
-		closedir($this->dirSource);
-	}
-
-	public function dir_rewinddir() {
-		rewinddir($this->dirSource);
-	}
-}
diff --git a/lib/private/files/stream/quota.php b/lib/private/files/stream/quota.php
deleted file mode 100644
index 8d27575c568..00000000000
--- a/lib/private/files/stream/quota.php
+++ /dev/null
@@ -1,156 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-/**
- * stream wrapper limits the amount of data that can be written to a stream
- *
- * usage: void \OC\Files\Stream\Quota::register($id, $stream, $limit)
- * or:    resource \OC\Files\Stream\Quota::wrap($stream, $limit)
- */
-class Quota {
-	private static $streams = array();
-
-	/**
-	 * @var resource $source
-	 */
-	private $source;
-
-	/**
-	 * @var int $limit
-	 */
-	private $limit;
-
-	/**
-	 * @param string $id
-	 * @param resource $stream
-	 * @param int $limit
-	 */
-	public static function register($id, $stream, $limit) {
-		self::$streams[$id] = array($stream, $limit);
-	}
-
-	/**
-	 * remove all registered streams
-	 */
-	public static function clear() {
-		self::$streams = array();
-	}
-
-	/**
-	 * @param resource $stream
-	 * @param int $limit
-	 * @return resource
-	 */
-	static public function wrap($stream, $limit) {
-		$id = uniqid();
-		self::register($id, $stream, $limit);
-		$meta = stream_get_meta_data($stream);
-		return fopen('quota://' . $id, $meta['mode']);
-	}
-
-	public function stream_open($path, $mode, $options, &$opened_path) {
-		$id = substr($path, strlen('quota://'));
-		if (isset(self::$streams[$id])) {
-			list($this->source, $this->limit) = self::$streams[$id];
-			return true;
-		} else {
-			return false;
-		}
-	}
-
-	public function stream_seek($offset, $whence = SEEK_SET) {
-		if ($whence === SEEK_END){
-			// go to the end to find out last position's offset
-			$oldOffset = $this->stream_tell();
-			if (fseek($this->source, 0, $whence) !== 0){
-				return false;
-			}
-			$whence = SEEK_SET;
-			$offset = $this->stream_tell() + $offset;
-			$this->limit += $oldOffset - $offset;
-		}
-		else if ($whence === SEEK_SET) {
-			$this->limit += $this->stream_tell() - $offset;
-		} else {
-			$this->limit -= $offset;
-		}
-		// this wrapper needs to return "true" for success.
-		// the fseek call itself returns 0 on succeess
-		return fseek($this->source, $offset, $whence) === 0;
-	}
-
-	public function stream_tell() {
-		return ftell($this->source);
-	}
-
-	public function stream_read($count) {
-		$this->limit -= $count;
-		return fread($this->source, $count);
-	}
-
-	public function stream_write($data) {
-		$size = strlen($data);
-		if ($size > $this->limit) {
-			$data = substr($data, 0, $this->limit);
-			$size = $this->limit;
-		}
-		$this->limit -= $size;
-		return fwrite($this->source, $data);
-	}
-
-	public function stream_set_option($option, $arg1, $arg2) {
-		switch ($option) {
-			case STREAM_OPTION_BLOCKING:
-				stream_set_blocking($this->source, $arg1);
-				break;
-			case STREAM_OPTION_READ_TIMEOUT:
-				stream_set_timeout($this->source, $arg1, $arg2);
-				break;
-			case STREAM_OPTION_WRITE_BUFFER:
-				stream_set_write_buffer($this->source, $arg1, $arg2);
-		}
-	}
-
-	public function stream_stat() {
-		return fstat($this->source);
-	}
-
-	public function stream_lock($mode) {
-		return flock($this->source, $mode);
-	}
-
-	public function stream_flush() {
-		return fflush($this->source);
-	}
-
-	public function stream_eof() {
-		return feof($this->source);
-	}
-
-	public function stream_close() {
-		fclose($this->source);
-	}
-}
diff --git a/lib/private/files/stream/staticstream.php b/lib/private/files/stream/staticstream.php
deleted file mode 100644
index 7aacf7a9fe4..00000000000
--- a/lib/private/files/stream/staticstream.php
+++ /dev/null
@@ -1,170 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Stream;
-
-class StaticStream {
-	const MODE_FILE = 0100000;
-
-	public $context;
-	protected static $data = array();
-
-	protected $path = '';
-	protected $pointer = 0;
-	protected $writable = false;
-
-	public function stream_close() {
-	}
-
-	public function stream_eof() {
-		return $this->pointer >= strlen(self::$data[$this->path]);
-	}
-
-	public function stream_flush() {
-	}
-
-	public static function clear() {
-		self::$data = array();
-	}
-
-	public function stream_open($path, $mode, $options, &$opened_path) {
-		switch ($mode[0]) {
-			case 'r':
-				if (!isset(self::$data[$path])) return false;
-				$this->path = $path;
-				$this->writable = isset($mode[1]) && $mode[1] == '+';
-				break;
-			case 'w':
-				self::$data[$path] = '';
-				$this->path = $path;
-				$this->writable = true;
-				break;
-			case 'a':
-				if (!isset(self::$data[$path])) self::$data[$path] = '';
-				$this->path = $path;
-				$this->writable = true;
-				$this->pointer = strlen(self::$data[$path]);
-				break;
-			case 'x':
-				if (isset(self::$data[$path])) return false;
-				$this->path = $path;
-				$this->writable = true;
-				break;
-			case 'c':
-				if (!isset(self::$data[$path])) self::$data[$path] = '';
-				$this->path = $path;
-				$this->writable = true;
-				break;
-			default:
-				return false;
-		}
-		$opened_path = $this->path;
-		return true;
-	}
-
-	public function stream_read($count) {
-		$bytes = min(strlen(self::$data[$this->path]) - $this->pointer, $count);
-		$data = substr(self::$data[$this->path], $this->pointer, $bytes);
-		$this->pointer += $bytes;
-		return $data;
-	}
-
-	public function stream_seek($offset, $whence = SEEK_SET) {
-		$len = strlen(self::$data[$this->path]);
-		switch ($whence) {
-			case SEEK_SET:
-				if ($offset <= $len) {
-					$this->pointer = $offset;
-					return true;
-				}
-				break;
-			case SEEK_CUR:
-				if ($this->pointer + $offset <= $len) {
-					$this->pointer += $offset;
-					return true;
-				}
-				break;
-			case SEEK_END:
-				if ($len + $offset <= $len) {
-					$this->pointer = $len + $offset;
-					return true;
-				}
-				break;
-		}
-		return false;
-	}
-
-	public function stream_stat() {
-		return $this->url_stat($this->path);
-	}
-
-	public function stream_tell() {
-		return $this->pointer;
-	}
-
-	public function stream_write($data) {
-		if (!$this->writable) return 0;
-		$size = strlen($data);
-		if ($this->stream_eof()) {
-			self::$data[$this->path] .= $data;
-		} else {
-			self::$data[$this->path] = substr_replace(
-				self::$data[$this->path],
-				$data,
-				$this->pointer
-			);
-		}
-		$this->pointer += $size;
-		return $size;
-	}
-
-	public function unlink($path) {
-		if (isset(self::$data[$path])) {
-			unset(self::$data[$path]);
-		}
-		return true;
-	}
-
-	public function url_stat($path) {
-		if (isset(self::$data[$path])) {
-			$size = strlen(self::$data[$path]);
-			$time = time();
-			$data = array(
-				'dev' => 0,
-				'ino' => 0,
-				'mode' => self::MODE_FILE | 0777,
-				'nlink' => 1,
-				'uid' => 0,
-				'gid' => 0,
-				'rdev' => '',
-				'size' => $size,
-				'atime' => $time,
-				'mtime' => $time,
-				'ctime' => $time,
-				'blksize' => -1,
-				'blocks' => -1,
-			);
-			return array_values($data) + $data;
-		}
-		return false;
-	}
-}
diff --git a/lib/private/files/type/detection.php b/lib/private/files/type/detection.php
deleted file mode 100644
index f106a98064f..00000000000
--- a/lib/private/files/type/detection.php
+++ /dev/null
@@ -1,318 +0,0 @@
-<?php
-/**
- * @author Andreas Fischer <bantu@owncloud.com>
- * @author Jens-Christian Fischer <jens-christian.fischer@switch.ch>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Thomas Tanghus <thomas@tanghus.net>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Type;
-
-use OCP\Files\IMimeTypeDetector;
-use OCP\IURLGenerator;
-
-/**
- * Class Detection
- *
- * Mimetype detection
- *
- * @package OC\Files\Type
- */
-class Detection implements IMimeTypeDetector {
-	protected $mimetypes = [];
-	protected $secureMimeTypes = [];
-
-	protected $mimetypeIcons = [];
-	/** @var string[] */
-	protected $mimeTypeAlias = [];
-
-	/** @var IURLGenerator */
-	private $urlGenerator;
-
-	/** @var string */
-	private $customConfigDir;
-
-	/** @var string */
-	private $defaultConfigDir;
-
-	/**
-	 * @param IURLGenerator $urlGenerator
-	 * @param string $customConfigDir
-	 * @param string $defaultConfigDir
-	 */
-	public function __construct(IURLGenerator $urlGenerator,
-								$customConfigDir,
-								$defaultConfigDir) {
-		$this->urlGenerator = $urlGenerator;
-		$this->customConfigDir = $customConfigDir;
-		$this->defaultConfigDir = $defaultConfigDir;
-	}
-
-	/**
-	 * Add an extension -> mimetype mapping
-	 *
-	 * $mimetype is the assumed correct mime type
-	 * The optional $secureMimeType is an alternative to send to send
-	 * to avoid potential XSS.
-	 *
-	 * @param string $extension
-	 * @param string $mimetype
-	 * @param string|null $secureMimeType
-	 */
-	public function registerType($extension,
-								 $mimetype,
-								 $secureMimeType = null) {
-		$this->mimetypes[$extension] = array($mimetype, $secureMimeType);
-		$this->secureMimeTypes[$mimetype] = $secureMimeType ?: $mimetype;
-	}
-
-	/**
-	 * Add an array of extension -> mimetype mappings
-	 *
-	 * The mimetype value is in itself an array where the first index is
-	 * the assumed correct mimetype and the second is either a secure alternative
-	 * or null if the correct is considered secure.
-	 *
-	 * @param array $types
-	 */
-	public function registerTypeArray($types) {
-		$this->mimetypes = array_merge($this->mimetypes, $types);
-
-		// Update the alternative mimetypes to avoid having to look them up each time.
-		foreach ($this->mimetypes as $mimeType) {
-			$this->secureMimeTypes[$mimeType[0]] = isset($mimeType[1]) ? $mimeType[1]: $mimeType[0];
-		}
-	}
-
-	/**
-	 * Add the mimetype aliases if they are not yet present
-	 */
-	private function loadAliases() {
-		if (!empty($this->mimeTypeAlias)) {
-			return;
-		}
-
-		$this->mimeTypeAlias = json_decode(file_get_contents($this->defaultConfigDir . '/mimetypealiases.dist.json'), true);
-
-		if (file_exists($this->customConfigDir . '/mimetypealiases.json')) {
-			$custom = json_decode(file_get_contents($this->customConfigDir . '/mimetypealiases.json'), true);
-			$this->mimeTypeAlias = array_merge($this->mimeTypeAlias, $custom);
-		}
-	}
-
-	/**
-	 * @return string[]
-	 */
-	public function getAllAliases() {
-		$this->loadAliases();
-		return $this->mimeTypeAlias;
-	}
-
-	/**
-	 * Add mimetype mappings if they are not yet present
-	 */
-	private function loadMappings() {
-		if (!empty($this->mimetypes)) {
-			return;
-		}
-
-		$mimetypeMapping = json_decode(file_get_contents($this->defaultConfigDir . '/mimetypemapping.dist.json'), true);
-
-		//Check if need to load custom mappings
-		if (file_exists($this->customConfigDir . '/mimetypemapping.json')) {
-			$custom = json_decode(file_get_contents($this->customConfigDir . '/mimetypemapping.json'), true);
-			$mimetypeMapping = array_merge($mimetypeMapping, $custom);
-		}
-
-		$this->registerTypeArray($mimetypeMapping);
-	}
-
-	/**
-	 * @return array
-	 */
-	public function getAllMappings() {
-		$this->loadMappings();
-		return $this->mimetypes;
-	}
-
-	/**
-	 * detect mimetype only based on filename, content of file is not used
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function detectPath($path) {
-		$this->loadMappings();
-
-		if (strpos($path, '.')) {
-			//try to guess the type by the file extension
-			$extension = strtolower(strrchr(basename($path), "."));
-			$extension = substr($extension, 1); //remove leading .
-			return (isset($this->mimetypes[$extension]) && isset($this->mimetypes[$extension][0]))
-				? $this->mimetypes[$extension][0]
-				: 'application/octet-stream';
-		} else {
-			return 'application/octet-stream';
-		}
-	}
-
-	/**
-	 * detect mimetype based on both filename and content
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function detect($path) {
-		$this->loadMappings();
-
-		if (@is_dir($path)) {
-			// directories are easy
-			return "httpd/unix-directory";
-		}
-
-		$mimeType = $this->detectPath($path);
-
-		if ($mimeType === 'application/octet-stream' and function_exists('finfo_open')
-			and function_exists('finfo_file') and $finfo = finfo_open(FILEINFO_MIME)
-		) {
-			$info = @strtolower(finfo_file($finfo, $path));
-			finfo_close($finfo);
-			if ($info) {
-				$mimeType = substr($info, 0, strpos($info, ';'));
-				return empty($mimeType) ? 'application/octet-stream' : $mimeType;
-			}
-
-		}
-		$isWrapped = (strpos($path, '://') !== false) and (substr($path, 0, 7) === 'file://');
-		if (!$isWrapped and $mimeType === 'application/octet-stream' && function_exists("mime_content_type")) {
-			// use mime magic extension if available
-			$mimeType = mime_content_type($path);
-		}
-		if (!$isWrapped and $mimeType === 'application/octet-stream' && \OC_Helper::canExecute("file")) {
-			// it looks like we have a 'file' command,
-			// lets see if it does have mime support
-			$path = escapeshellarg($path);
-			$fp = popen("file -b --mime-type $path 2>/dev/null", "r");
-			$reply = fgets($fp);
-			pclose($fp);
-
-			//trim the newline
-			$mimeType = trim($reply);
-
-			if (empty($mimeType)) {
-				$mimeType = 'application/octet-stream';
-			}
-
-		}
-		return $mimeType;
-	}
-
-	/**
-	 * detect mimetype based on the content of a string
-	 *
-	 * @param string $data
-	 * @return string
-	 */
-	public function detectString($data) {
-		if (function_exists('finfo_open') and function_exists('finfo_file')) {
-			$finfo = finfo_open(FILEINFO_MIME);
-			return finfo_buffer($finfo, $data);
-		} else {
-			$tmpFile = \OC::$server->getTempManager()->getTemporaryFile();
-			$fh = fopen($tmpFile, 'wb');
-			fwrite($fh, $data, 8024);
-			fclose($fh);
-			$mime = $this->detect($tmpFile);
-			unset($tmpFile);
-			return $mime;
-		}
-	}
-
-	/**
-	 * Get a secure mimetype that won't expose potential XSS.
-	 *
-	 * @param string $mimeType
-	 * @return string
-	 */
-	public function getSecureMimeType($mimeType) {
-		$this->loadMappings();
-
-		return isset($this->secureMimeTypes[$mimeType])
-			? $this->secureMimeTypes[$mimeType]
-			: 'application/octet-stream';
-	}
-
-	/**
-	 * Get path to the icon of a file type
-	 * @param string $mimetype the MIME type
-	 * @return string the url
-	 */
-	public function mimeTypeIcon($mimetype) {
-		$this->loadAliases();
-
-		while (isset($this->mimeTypeAlias[$mimetype])) {
-			$mimetype = $this->mimeTypeAlias[$mimetype];
-		}
-		if (isset($this->mimetypeIcons[$mimetype])) {
-			return $this->mimetypeIcons[$mimetype];
-		}
-
-		// Replace slash and backslash with a minus
-		$icon = str_replace('/', '-', $mimetype);
-		$icon = str_replace('\\', '-', $icon);
-
-		// Is it a dir?
-		if ($mimetype === 'dir') {
-			$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/folder.png');
-			return $this->mimetypeIcons[$mimetype];
-		}
-		if ($mimetype === 'dir-shared') {
-			$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/folder-shared.png');
-			return $this->mimetypeIcons[$mimetype];
-		}
-		if ($mimetype === 'dir-external') {
-			$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/folder-external.png');
-			return $this->mimetypeIcons[$mimetype];
-		}
-
-		// Icon exists?
-		try {
-			$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/' . $icon . '.png');
-			return $this->mimetypeIcons[$mimetype];
-		} catch (\RuntimeException $e) {
-			// Specified image not found
-		}
-
-		// Try only the first part of the filetype
-		$mimePart = substr($icon, 0, strpos($icon, '-'));
-		try {
-			$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/' . $mimePart . '.png');
-			return $this->mimetypeIcons[$mimetype];
-		} catch (\RuntimeException $e) {
-			// Image for the first part of the mimetype not found
-		}
-
-		$this->mimetypeIcons[$mimetype] = $this->urlGenerator->imagePath('core', 'filetypes/file.png');
-		return $this->mimetypeIcons[$mimetype];
-	}
-}
diff --git a/lib/private/files/type/loader.php b/lib/private/files/type/loader.php
deleted file mode 100644
index 95ba7597257..00000000000
--- a/lib/private/files/type/loader.php
+++ /dev/null
@@ -1,173 +0,0 @@
-<?php
-/**
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Type;
-
-use OCP\Files\IMimeTypeLoader;
-use OCP\IDBConnection;
-
-use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
-
-/**
- * Mimetype database loader
- *
- * @package OC\Files\Type
- */
-class Loader implements IMimeTypeLoader {
-
-	/** @var IDBConnection */
-	private $dbConnection;
-
-	/** @var array [id => mimetype] */
-	protected $mimetypes;
-
-	/** @var array [mimetype => id] */
-	protected $mimetypeIds;
-
-	/**
-	 * @param IDBConnection $dbConnection
-	 */
-	public function __construct(IDBConnection $dbConnection) {
-		$this->dbConnection = $dbConnection;
-		$this->mimetypes = [];
-		$this->mimetypeIds = [];
-	}
-
-	/**
-	 * Get a mimetype from its ID
-	 *
-	 * @param int $id
-	 * @return string|null
-	 */
-	public function getMimetypeById($id) {
-		if (!$this->mimetypes) {
-			$this->loadMimetypes();
-		}
-		if (isset($this->mimetypes[$id])) {
-			return $this->mimetypes[$id];
-		}
-		return null;
-	}
-
-	/**
-	 * Get a mimetype ID, adding the mimetype to the DB if it does not exist
-	 *
-	 * @param string $mimetype
-	 * @return int
-	 */
-	public function getId($mimetype) {
-		if (!$this->mimetypeIds) {
-			$this->loadMimetypes();
-		}
-		if (isset($this->mimetypeIds[$mimetype])) {
-			return $this->mimetypeIds[$mimetype];
-		}
-		return $this->store($mimetype);
-	}
-
-	/**
-	 * Test if a mimetype exists in the database
-	 *
-	 * @param string $mimetype
-	 * @return bool
-	 */
-	public function exists($mimetype) {
-		if (!$this->mimetypeIds) {
-			$this->loadMimetypes();
-		}
-		return isset($this->mimetypeIds[$mimetype]);
-	}
-
-	/**
-	 * Clear all loaded mimetypes, allow for re-loading
-	 */
-	public function reset() {
-		$this->mimetypes = [];
-		$this->mimetypeIds = [];
-	}
-
-	/**
-	 * Store a mimetype in the DB
-	 *
-	 * @param string $mimetype
-	 * @param int inserted ID
-	 */
-	protected function store($mimetype) {
-		try {
-			$qb = $this->dbConnection->getQueryBuilder();
-			$qb->insert('mimetypes')
-				->values([
-					'mimetype' => $qb->createNamedParameter($mimetype)
-				]);
-			$qb->execute();
-		} catch (UniqueConstraintViolationException $e) {
-			// something inserted it before us
-		}
-
-		$fetch = $this->dbConnection->getQueryBuilder();
-		$fetch->select('id')
-			->from('mimetypes')
-			->where(
-				$fetch->expr()->eq('mimetype', $fetch->createNamedParameter($mimetype)
-			));
-		$row = $fetch->execute()->fetch();
-
-		$this->mimetypes[$row['id']] = $mimetype;
-		$this->mimetypeIds[$mimetype] = $row['id'];
-		return $row['id'];
-	}
-
-	/**
-	 * Load all mimetypes from DB
-	 */
-	private function loadMimetypes() {
-		$qb = $this->dbConnection->getQueryBuilder();
-		$qb->select('id', 'mimetype')
-			->from('mimetypes');
-		$results = $qb->execute()->fetchAll();
-
-		foreach ($results as $row) {
-			$this->mimetypes[$row['id']] = $row['mimetype'];
-			$this->mimetypeIds[$row['mimetype']] = $row['id'];
-		}
-	}
-
-	/**
-	 * Update filecache mimetype based on file extension
-	 *
-	 * @param string $ext file extension
-	 * @param int $mimetypeId
-	 * @return int number of changed rows
-	 */
-	public function updateFilecache($ext, $mimetypeId) {
-		$update = $this->dbConnection->getQueryBuilder();
-		$update->update('filecache')
-			->set('mimetype', $update->createNamedParameter($mimetypeId))
-			->where($update->expr()->neq(
-				'mimetype', $update->createNamedParameter($mimetypeId)
-			))
-			->andWhere($update->expr()->like(
-				$update->createFunction('LOWER(`name`)'), $update->createNamedParameter($ext)
-			));
-		return $update->execute();
-	}
-
-}
diff --git a/lib/private/files/type/templatemanager.php b/lib/private/files/type/templatemanager.php
deleted file mode 100644
index 363fb7a2a6c..00000000000
--- a/lib/private/files/type/templatemanager.php
+++ /dev/null
@@ -1,61 +0,0 @@
-<?php
-/**
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Type;
-
-class TemplateManager {
-	protected $templates = array();
-
-	public function registerTemplate($mimetype, $path) {
-		$this->templates[$mimetype] = $path;
-	}
-
-	/**
-	 * get the path of the template for a mimetype
-	 *
-	 * @param string $mimetype
-	 * @return string|null
-	 */
-	public function getTemplatePath($mimetype) {
-		if (isset($this->templates[$mimetype])) {
-			return $this->templates[$mimetype];
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * get the template content for a mimetype
-	 *
-	 * @param string $mimetype
-	 * @return string
-	 */
-	public function getTemplate($mimetype) {
-		$path = $this->getTemplatePath($mimetype);
-		if ($path) {
-			return file_get_contents($path);
-		} else {
-			return '';
-		}
-	}
-}
diff --git a/lib/private/files/utils/scanner.php b/lib/private/files/utils/scanner.php
deleted file mode 100644
index 06526583899..00000000000
--- a/lib/private/files/utils/scanner.php
+++ /dev/null
@@ -1,172 +0,0 @@
-<?php
-/**
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Olivier Paroz <github@oparoz.com>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Files\Utils;
-
-use OC\Files\Filesystem;
-use OC\ForbiddenException;
-use OC\Hooks\PublicEmitter;
-use OC\Lock\DBLockingProvider;
-use OCP\Files\StorageNotAvailableException;
-use OCP\ILogger;
-
-/**
- * Class Scanner
- *
- * Hooks available in scope \OC\Utils\Scanner
- *  - scanFile(string $absolutePath)
- *  - scanFolder(string $absolutePath)
- *
- * @package OC\Files\Utils
- */
-class Scanner extends PublicEmitter {
-	/**
-	 * @var string $user
-	 */
-	private $user;
-
-	/**
-	 * @var \OCP\IDBConnection
-	 */
-	protected $db;
-
-	/**
-	 * @var ILogger
-	 */
-	protected $logger;
-
-	/**
-	 * @param string $user
-	 * @param \OCP\IDBConnection $db
-	 * @param ILogger $logger
-	 */
-	public function __construct($user, $db, ILogger $logger) {
-		$this->logger = $logger;
-		$this->user = $user;
-		$this->db = $db;
-	}
-
-	/**
-	 * get all storages for $dir
-	 *
-	 * @param string $dir
-	 * @return \OC\Files\Mount\MountPoint[]
-	 */
-	protected function getMounts($dir) {
-		//TODO: move to the node based fileapi once that's done
-		\OC_Util::tearDownFS();
-		\OC_Util::setupFS($this->user);
-
-		$mountManager = Filesystem::getMountManager();
-		$mounts = $mountManager->findIn($dir);
-		$mounts[] = $mountManager->find($dir);
-		$mounts = array_reverse($mounts); //start with the mount of $dir
-
-		return $mounts;
-	}
-
-	/**
-	 * attach listeners to the scanner
-	 *
-	 * @param \OC\Files\Mount\MountPoint $mount
-	 */
-	protected function attachListener($mount) {
-		$scanner = $mount->getStorage()->getScanner();
-		$emitter = $this;
-		$scanner->listen('\OC\Files\Cache\Scanner', 'scanFile', function ($path) use ($mount, $emitter) {
-			$emitter->emit('\OC\Files\Utils\Scanner', 'scanFile', array($mount->getMountPoint() . $path));
-		});
-		$scanner->listen('\OC\Files\Cache\Scanner', 'scanFolder', function ($path) use ($mount, $emitter) {
-			$emitter->emit('\OC\Files\Utils\Scanner', 'scanFolder', array($mount->getMountPoint() . $path));
-		});
-		$scanner->listen('\OC\Files\Cache\Scanner', 'postScanFile', function ($path) use ($mount, $emitter) {
-			$emitter->emit('\OC\Files\Utils\Scanner', 'postScanFile', array($mount->getMountPoint() . $path));
-		});
-		$scanner->listen('\OC\Files\Cache\Scanner', 'postScanFolder', function ($path) use ($mount, $emitter) {
-			$emitter->emit('\OC\Files\Utils\Scanner', 'postScanFolder', array($mount->getMountPoint() . $path));
-		});
-	}
-
-	/**
-	 * @param string $dir
-	 */
-	public function backgroundScan($dir) {
-		$mounts = $this->getMounts($dir);
-		foreach ($mounts as $mount) {
-			if (is_null($mount->getStorage())) {
-				continue;
-			}
-			// don't scan the root storage
-			if ($mount->getStorage()->instanceOfStorage('\OC\Files\Storage\Local') && $mount->getMountPoint() === '/') {
-				continue;
-			}
-			$scanner = $mount->getStorage()->getScanner();
-			$this->attachListener($mount);
-			$scanner->backgroundScan();
-		}
-	}
-
-	/**
-	 * @param string $dir
-	 * @throws \OC\ForbiddenException
-	 */
-	public function scan($dir = '') {
-		if (!Filesystem::isValidPath($dir)) {
-			throw new \InvalidArgumentException('Invalid path to scan');
-		}
-		$mounts = $this->getMounts($dir);
-		foreach ($mounts as $mount) {
-			if (is_null($mount->getStorage())) {
-				continue;
-			}
-			$storage = $mount->getStorage();
-			// if the home storage isn't writable then the scanner is run as the wrong user
-			if ($storage->instanceOfStorage('\OC\Files\Storage\Home') and
-				(!$storage->isCreatable('') or !$storage->isCreatable('files'))
-			) {
-				throw new ForbiddenException();
-			}
-			$relativePath = $mount->getInternalPath($dir);
-			$scanner = $storage->getScanner();
-			$scanner->setUseTransactions(false);
-			$this->attachListener($mount);
-			$isDbLocking = \OC::$server->getLockingProvider() instanceof DBLockingProvider;
-			if (!$isDbLocking) {
-				$this->db->beginTransaction();
-			}
-			try {
-				$scanner->scan($relativePath, \OC\Files\Cache\Scanner::SCAN_RECURSIVE, \OC\Files\Cache\Scanner::REUSE_ETAG | \OC\Files\Cache\Scanner::REUSE_SIZE);
-			} catch (StorageNotAvailableException $e) {
-				$this->logger->error('Storage ' . $storage->getId() . ' not available');
-				$this->logger->logException($e);
-				$this->emit('\OC\Files\Utils\Scanner', 'StorageNotAvailable', [$e]);
-			}
-			if (!$isDbLocking) {
-				$this->db->commit();
-			}
-		}
-	}
-}
-
diff --git a/lib/private/files/view.php b/lib/private/files/view.php
deleted file mode 100644
index aac33a4598c..00000000000
--- a/lib/private/files/view.php
+++ /dev/null
@@ -1,2058 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author cmeh <cmeh@users.noreply.github.com>
- * @author Florin Peter <github@florin-peter.de>
- * @author Jesús Macias <jmacias@solidgear.es>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Klaas Freitag <freitag@owncloud.com>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Luke Policinski <lpolicinski@gmail.com>
- * @author Martin Mattel <martin.mattel@diemattels.at>
- * @author Michael Gapczynski <GapczynskiM@gmail.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Sam Tuke <mail@samtuke.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Thomas Tanghus <thomas@tanghus.net>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-
-namespace OC\Files;
-
-use Icewind\Streams\CallbackWrapper;
-use OC\Files\Mount\MoveableMount;
-use OC\Files\Storage\Storage;
-use OC\User\User;
-use OCP\Constants;
-use OCP\Files\Cache\ICacheEntry;
-use OCP\Files\FileNameTooLongException;
-use OCP\Files\InvalidCharacterInPathException;
-use OCP\Files\InvalidPathException;
-use OCP\Files\NotFoundException;
-use OCP\Files\ReservedWordException;
-use OCP\Files\Storage\ILockingStorage;
-use OCP\IUser;
-use OCP\Lock\ILockingProvider;
-use OCP\Lock\LockedException;
-
-/**
- * Class to provide access to ownCloud filesystem via a "view", and methods for
- * working with files within that view (e.g. read, write, delete, etc.). Each
- * view is restricted to a set of directories via a virtual root. The default view
- * uses the currently logged in user's data directory as root (parts of
- * OC_Filesystem are merely a wrapper for OC\Files\View).
- *
- * Apps that need to access files outside of the user data folders (to modify files
- * belonging to a user other than the one currently logged in, for example) should
- * use this class directly rather than using OC_Filesystem, or making use of PHP's
- * built-in file manipulation functions. This will ensure all hooks and proxies
- * are triggered correctly.
- *
- * Filesystem functions are not called directly; they are passed to the correct
- * \OC\Files\Storage\Storage object
- */
-class View {
-	/** @var string */
-	private $fakeRoot = '';
-
-	/**
-	 * @var \OCP\Lock\ILockingProvider
-	 */
-	private $lockingProvider;
-
-	private $lockingEnabled;
-
-	private $updaterEnabled = true;
-
-	private $userManager;
-
-	/**
-	 * @param string $root
-	 * @throws \Exception If $root contains an invalid path
-	 */
-	public function __construct($root = '') {
-		if (is_null($root)) {
-			throw new \InvalidArgumentException('Root can\'t be null');
-		}
-		if (!Filesystem::isValidPath($root)) {
-			throw new \Exception();
-		}
-
-		$this->fakeRoot = $root;
-		$this->lockingProvider = \OC::$server->getLockingProvider();
-		$this->lockingEnabled = !($this->lockingProvider instanceof \OC\Lock\NoopLockingProvider);
-		$this->userManager = \OC::$server->getUserManager();
-	}
-
-	public function getAbsolutePath($path = '/') {
-		if ($path === null) {
-			return null;
-		}
-		$this->assertPathLength($path);
-		if ($path === '') {
-			$path = '/';
-		}
-		if ($path[0] !== '/') {
-			$path = '/' . $path;
-		}
-		return $this->fakeRoot . $path;
-	}
-
-	/**
-	 * change the root to a fake root
-	 *
-	 * @param string $fakeRoot
-	 * @return boolean|null
-	 */
-	public function chroot($fakeRoot) {
-		if (!$fakeRoot == '') {
-			if ($fakeRoot[0] !== '/') {
-				$fakeRoot = '/' . $fakeRoot;
-			}
-		}
-		$this->fakeRoot = $fakeRoot;
-	}
-
-	/**
-	 * get the fake root
-	 *
-	 * @return string
-	 */
-	public function getRoot() {
-		return $this->fakeRoot;
-	}
-
-	/**
-	 * get path relative to the root of the view
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getRelativePath($path) {
-		$this->assertPathLength($path);
-		if ($this->fakeRoot == '') {
-			return $path;
-		}
-
-		if (rtrim($path, '/') === rtrim($this->fakeRoot, '/')) {
-			return '/';
-		}
-
-		// missing slashes can cause wrong matches!
-		$root = rtrim($this->fakeRoot, '/') . '/';
-
-		if (strpos($path, $root) !== 0) {
-			return null;
-		} else {
-			$path = substr($path, strlen($this->fakeRoot));
-			if (strlen($path) === 0) {
-				return '/';
-			} else {
-				return $path;
-			}
-		}
-	}
-
-	/**
-	 * get the mountpoint of the storage object for a path
-	 * ( note: because a storage is not always mounted inside the fakeroot, the
-	 * returned mountpoint is relative to the absolute root of the filesystem
-	 * and does not take the chroot into account )
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getMountPoint($path) {
-		return Filesystem::getMountPoint($this->getAbsolutePath($path));
-	}
-
-	/**
-	 * get the mountpoint of the storage object for a path
-	 * ( note: because a storage is not always mounted inside the fakeroot, the
-	 * returned mountpoint is relative to the absolute root of the filesystem
-	 * and does not take the chroot into account )
-	 *
-	 * @param string $path
-	 * @return \OCP\Files\Mount\IMountPoint
-	 */
-	public function getMount($path) {
-		return Filesystem::getMountManager()->find($this->getAbsolutePath($path));
-	}
-
-	/**
-	 * resolve a path to a storage and internal path
-	 *
-	 * @param string $path
-	 * @return array an array consisting of the storage and the internal path
-	 */
-	public function resolvePath($path) {
-		$a = $this->getAbsolutePath($path);
-		$p = Filesystem::normalizePath($a);
-		return Filesystem::resolvePath($p);
-	}
-
-	/**
-	 * return the path to a local version of the file
-	 * we need this because we can't know if a file is stored local or not from
-	 * outside the filestorage and for some purposes a local file is needed
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFile($path) {
-		$parent = substr($path, 0, strrpos($path, '/'));
-		$path = $this->getAbsolutePath($path);
-		list($storage, $internalPath) = Filesystem::resolvePath($path);
-		if (Filesystem::isValidPath($parent) and $storage) {
-			return $storage->getLocalFile($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return string
-	 */
-	public function getLocalFolder($path) {
-		$parent = substr($path, 0, strrpos($path, '/'));
-		$path = $this->getAbsolutePath($path);
-		list($storage, $internalPath) = Filesystem::resolvePath($path);
-		if (Filesystem::isValidPath($parent) and $storage) {
-			return $storage->getLocalFolder($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * the following functions operate with arguments and return values identical
-	 * to those of their PHP built-in equivalents. Mostly they are merely wrappers
-	 * for \OC\Files\Storage\Storage via basicOperation().
-	 */
-	public function mkdir($path) {
-		return $this->basicOperation('mkdir', $path, array('create', 'write'));
-	}
-
-	/**
-	 * remove mount point
-	 *
-	 * @param \OC\Files\Mount\MoveableMount $mount
-	 * @param string $path relative to data/
-	 * @return boolean
-	 */
-	protected function removeMount($mount, $path) {
-		if ($mount instanceof MoveableMount) {
-			// cut of /user/files to get the relative path to data/user/files
-			$pathParts = explode('/', $path, 4);
-			$relPath = '/' . $pathParts[3];
-			$this->lockFile($relPath, ILockingProvider::LOCK_SHARED, true);
-			\OC_Hook::emit(
-				Filesystem::CLASSNAME, "umount",
-				array(Filesystem::signal_param_path => $relPath)
-			);
-			$this->changeLock($relPath, ILockingProvider::LOCK_EXCLUSIVE, true);
-			$result = $mount->removeMount();
-			$this->changeLock($relPath, ILockingProvider::LOCK_SHARED, true);
-			if ($result) {
-				\OC_Hook::emit(
-					Filesystem::CLASSNAME, "post_umount",
-					array(Filesystem::signal_param_path => $relPath)
-				);
-			}
-			$this->unlockFile($relPath, ILockingProvider::LOCK_SHARED, true);
-			return $result;
-		} else {
-			// do not allow deleting the storage's root / the mount point
-			// because for some storages it might delete the whole contents
-			// but isn't supposed to work that way
-			return false;
-		}
-	}
-
-	public function disableCacheUpdate() {
-		$this->updaterEnabled = false;
-	}
-
-	public function enableCacheUpdate() {
-		$this->updaterEnabled = true;
-	}
-
-	protected function writeUpdate(Storage $storage, $internalPath, $time = null) {
-		if ($this->updaterEnabled) {
-			if (is_null($time)) {
-				$time = time();
-			}
-			$storage->getUpdater()->update($internalPath, $time);
-		}
-	}
-
-	protected function removeUpdate(Storage $storage, $internalPath) {
-		if ($this->updaterEnabled) {
-			$storage->getUpdater()->remove($internalPath);
-		}
-	}
-
-	protected function renameUpdate(Storage $sourceStorage, Storage $targetStorage, $sourceInternalPath, $targetInternalPath) {
-		if ($this->updaterEnabled) {
-			$targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function rmdir($path) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-		if ($mount->getInternalPath($absolutePath) === '') {
-			return $this->removeMount($mount, $absolutePath);
-		}
-		if ($this->is_dir($path)) {
-			return $this->basicOperation('rmdir', $path, array('delete'));
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return resource
-	 */
-	public function opendir($path) {
-		return $this->basicOperation('opendir', $path, array('read'));
-	}
-
-	/**
-	 * @param $handle
-	 * @return mixed
-	 */
-	public function readdir($handle) {
-		$fsLocal = new Storage\Local(array('datadir' => '/'));
-		return $fsLocal->readdir($handle);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function is_dir($path) {
-		if ($path == '/') {
-			return true;
-		}
-		return $this->basicOperation('is_dir', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function is_file($path) {
-		if ($path == '/') {
-			return false;
-		}
-		return $this->basicOperation('is_file', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function stat($path) {
-		return $this->basicOperation('stat', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filetype($path) {
-		return $this->basicOperation('filetype', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filesize($path) {
-		return $this->basicOperation('filesize', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function readfile($path) {
-		$this->assertPathLength($path);
-		@ob_end_clean();
-		$handle = $this->fopen($path, 'rb');
-		if ($handle) {
-			$chunkSize = 8192; // 8 kB chunks
-			while (!feof($handle)) {
-				echo fread($handle, $chunkSize);
-				flush();
-			}
-			$size = $this->filesize($path);
-			return $size;
-		}
-		return false;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isCreatable($path) {
-		return $this->basicOperation('isCreatable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isReadable($path) {
-		return $this->basicOperation('isReadable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isUpdatable($path) {
-		return $this->basicOperation('isUpdatable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function isDeletable($path) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-		if ($mount->getInternalPath($absolutePath) === '') {
-			return $mount instanceof MoveableMount;
-		}
-		return $this->basicOperation('isDeletable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function isSharable($path) {
-		return $this->basicOperation('isSharable', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function file_exists($path) {
-		if ($path == '/') {
-			return true;
-		}
-		return $this->basicOperation('file_exists', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function filemtime($path) {
-		return $this->basicOperation('filemtime', $path);
-	}
-
-	/**
-	 * @param string $path
-	 * @param int|string $mtime
-	 * @return bool
-	 */
-	public function touch($path, $mtime = null) {
-		if (!is_null($mtime) and !is_numeric($mtime)) {
-			$mtime = strtotime($mtime);
-		}
-
-		$hooks = array('touch');
-
-		if (!$this->file_exists($path)) {
-			$hooks[] = 'create';
-			$hooks[] = 'write';
-		}
-		$result = $this->basicOperation('touch', $path, $hooks, $mtime);
-		if (!$result) {
-			// If create file fails because of permissions on external storage like SMB folders,
-			// check file exists and return false if not.
-			if (!$this->file_exists($path)) {
-				return false;
-			}
-			if (is_null($mtime)) {
-				$mtime = time();
-			}
-			//if native touch fails, we emulate it by changing the mtime in the cache
-			$this->putFileInfo($path, array('mtime' => $mtime));
-		}
-		return true;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 */
-	public function file_get_contents($path) {
-		return $this->basicOperation('file_get_contents', $path, array('read'));
-	}
-
-	/**
-	 * @param bool $exists
-	 * @param string $path
-	 * @param bool $run
-	 */
-	protected function emit_file_hooks_pre($exists, $path, &$run) {
-		if (!$exists) {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_create, array(
-				Filesystem::signal_param_path => $this->getHookPath($path),
-				Filesystem::signal_param_run => &$run,
-			));
-		} else {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_update, array(
-				Filesystem::signal_param_path => $this->getHookPath($path),
-				Filesystem::signal_param_run => &$run,
-			));
-		}
-		\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_write, array(
-			Filesystem::signal_param_path => $this->getHookPath($path),
-			Filesystem::signal_param_run => &$run,
-		));
-	}
-
-	/**
-	 * @param bool $exists
-	 * @param string $path
-	 */
-	protected function emit_file_hooks_post($exists, $path) {
-		if (!$exists) {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_create, array(
-				Filesystem::signal_param_path => $this->getHookPath($path),
-			));
-		} else {
-			\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_update, array(
-				Filesystem::signal_param_path => $this->getHookPath($path),
-			));
-		}
-		\OC_Hook::emit(Filesystem::CLASSNAME, Filesystem::signal_post_write, array(
-			Filesystem::signal_param_path => $this->getHookPath($path),
-		));
-	}
-
-	/**
-	 * @param string $path
-	 * @param mixed $data
-	 * @return bool|mixed
-	 * @throws \Exception
-	 */
-	public function file_put_contents($path, $data) {
-		if (is_resource($data)) { //not having to deal with streams in file_put_contents makes life easier
-			$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-			if (Filesystem::isValidPath($path)
-				and !Filesystem::isFileBlacklisted($path)
-			) {
-				$path = $this->getRelativePath($absolutePath);
-
-				$this->lockFile($path, ILockingProvider::LOCK_SHARED);
-
-				$exists = $this->file_exists($path);
-				$run = true;
-				if ($this->shouldEmitHooks($path)) {
-					$this->emit_file_hooks_pre($exists, $path, $run);
-				}
-				if (!$run) {
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					return false;
-				}
-
-				$this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
-
-				/** @var \OC\Files\Storage\Storage $storage */
-				list($storage, $internalPath) = $this->resolvePath($path);
-				$target = $storage->fopen($internalPath, 'w');
-				if ($target) {
-					list (, $result) = \OC_Helper::streamCopy($data, $target);
-					fclose($target);
-					fclose($data);
-
-					$this->writeUpdate($storage, $internalPath);
-
-					$this->changeLock($path, ILockingProvider::LOCK_SHARED);
-
-					if ($this->shouldEmitHooks($path) && $result !== false) {
-						$this->emit_file_hooks_post($exists, $path);
-					}
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					return $result;
-				} else {
-					$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-					return false;
-				}
-			} else {
-				return false;
-			}
-		} else {
-			$hooks = ($this->file_exists($path)) ? array('update', 'write') : array('create', 'write');
-			return $this->basicOperation('file_put_contents', $path, $hooks, $data);
-		}
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|mixed
-	 */
-	public function unlink($path) {
-		if ($path === '' || $path === '/') {
-			// do not allow deleting the root
-			return false;
-		}
-		$postFix = (substr($path, -1, 1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		$mount = Filesystem::getMountManager()->find($absolutePath . $postFix);
-		if ($mount and $mount->getInternalPath($absolutePath) === '') {
-			return $this->removeMount($mount, $absolutePath);
-		}
-		return $this->basicOperation('unlink', $path, array('delete'));
-	}
-
-	/**
-	 * @param string $directory
-	 * @return bool|mixed
-	 */
-	public function deleteAll($directory) {
-		return $this->rmdir($directory);
-	}
-
-	/**
-	 * Rename/move a file or folder from the source path to target path.
-	 *
-	 * @param string $path1 source path
-	 * @param string $path2 target path
-	 *
-	 * @return bool|mixed
-	 */
-	public function rename($path1, $path2) {
-		$absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
-		$absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
-		$result = false;
-		if (
-			Filesystem::isValidPath($path2)
-			and Filesystem::isValidPath($path1)
-			and !Filesystem::isFileBlacklisted($path2)
-		) {
-			$path1 = $this->getRelativePath($absolutePath1);
-			$path2 = $this->getRelativePath($absolutePath2);
-			$exists = $this->file_exists($path2);
-
-			if ($path1 == null or $path2 == null) {
-				return false;
-			}
-
-			$this->lockFile($path1, ILockingProvider::LOCK_SHARED, true);
-			try {
-				$this->lockFile($path2, ILockingProvider::LOCK_SHARED, true);
-			} catch (LockedException $e) {
-				$this->unlockFile($path1, ILockingProvider::LOCK_SHARED);
-				throw $e;
-			}
-
-			$run = true;
-			if ($this->shouldEmitHooks($path1) && (Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2))) {
-				// if it was a rename from a part file to a regular file it was a write and not a rename operation
-				$this->emit_file_hooks_pre($exists, $path2, $run);
-			} elseif ($this->shouldEmitHooks($path1)) {
-				\OC_Hook::emit(
-					Filesystem::CLASSNAME, Filesystem::signal_rename,
-					array(
-						Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-						Filesystem::signal_param_newpath => $this->getHookPath($path2),
-						Filesystem::signal_param_run => &$run
-					)
-				);
-			}
-			if ($run) {
-				$this->verifyPath(dirname($path2), basename($path2));
-
-				$manager = Filesystem::getMountManager();
-				$mount1 = $this->getMount($path1);
-				$mount2 = $this->getMount($path2);
-				$storage1 = $mount1->getStorage();
-				$storage2 = $mount2->getStorage();
-				$internalPath1 = $mount1->getInternalPath($absolutePath1);
-				$internalPath2 = $mount2->getInternalPath($absolutePath2);
-
-				$this->changeLock($path1, ILockingProvider::LOCK_EXCLUSIVE, true);
-				$this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE, true);
-
-				if ($internalPath1 === '' and $mount1 instanceof MoveableMount) {
-					if ($this->isTargetAllowed($absolutePath2)) {
-						/**
-						 * @var \OC\Files\Mount\MountPoint | \OC\Files\Mount\MoveableMount $mount1
-						 */
-						$sourceMountPoint = $mount1->getMountPoint();
-						$result = $mount1->moveMount($absolutePath2);
-						$manager->moveMount($sourceMountPoint, $mount1->getMountPoint());
-					} else {
-						$result = false;
-					}
-					// moving a file/folder within the same mount point
-				} elseif ($storage1 == $storage2) {
-					if ($storage1) {
-						$result = $storage1->rename($internalPath1, $internalPath2);
-					} else {
-						$result = false;
-					}
-					// moving a file/folder between storages (from $storage1 to $storage2)
-				} else {
-					$result = $storage2->moveFromStorage($storage1, $internalPath1, $internalPath2);
-				}
-
-				if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
-					// if it was a rename from a part file to a regular file it was a write and not a rename operation
-
-					$this->writeUpdate($storage2, $internalPath2);
-				} else if ($result) {
-					if ($internalPath1 !== '') { // don't do a cache update for moved mounts
-						$this->renameUpdate($storage1, $storage2, $internalPath1, $internalPath2);
-					}
-				}
-
-				$this->changeLock($path1, ILockingProvider::LOCK_SHARED, true);
-				$this->changeLock($path2, ILockingProvider::LOCK_SHARED, true);
-
-				if ((Cache\Scanner::isPartialFile($path1) && !Cache\Scanner::isPartialFile($path2)) && $result !== false) {
-					if ($this->shouldEmitHooks()) {
-						$this->emit_file_hooks_post($exists, $path2);
-					}
-				} elseif ($result) {
-					if ($this->shouldEmitHooks($path1) and $this->shouldEmitHooks($path2)) {
-						\OC_Hook::emit(
-							Filesystem::CLASSNAME,
-							Filesystem::signal_post_rename,
-							array(
-								Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-								Filesystem::signal_param_newpath => $this->getHookPath($path2)
-							)
-						);
-					}
-				}
-			}
-			$this->unlockFile($path1, ILockingProvider::LOCK_SHARED, true);
-			$this->unlockFile($path2, ILockingProvider::LOCK_SHARED, true);
-		}
-		return $result;
-	}
-
-	/**
-	 * Copy a file/folder from the source path to target path
-	 *
-	 * @param string $path1 source path
-	 * @param string $path2 target path
-	 * @param bool $preserveMtime whether to preserve mtime on the copy
-	 *
-	 * @return bool|mixed
-	 */
-	public function copy($path1, $path2, $preserveMtime = false) {
-		$absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($path1));
-		$absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($path2));
-		$result = false;
-		if (
-			Filesystem::isValidPath($path2)
-			and Filesystem::isValidPath($path1)
-			and !Filesystem::isFileBlacklisted($path2)
-		) {
-			$path1 = $this->getRelativePath($absolutePath1);
-			$path2 = $this->getRelativePath($absolutePath2);
-
-			if ($path1 == null or $path2 == null) {
-				return false;
-			}
-			$run = true;
-
-			$this->lockFile($path2, ILockingProvider::LOCK_SHARED);
-			$this->lockFile($path1, ILockingProvider::LOCK_SHARED);
-			$lockTypePath1 = ILockingProvider::LOCK_SHARED;
-			$lockTypePath2 = ILockingProvider::LOCK_SHARED;
-
-			try {
-
-				$exists = $this->file_exists($path2);
-				if ($this->shouldEmitHooks()) {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						Filesystem::signal_copy,
-						array(
-							Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-							Filesystem::signal_param_newpath => $this->getHookPath($path2),
-							Filesystem::signal_param_run => &$run
-						)
-					);
-					$this->emit_file_hooks_pre($exists, $path2, $run);
-				}
-				if ($run) {
-					$mount1 = $this->getMount($path1);
-					$mount2 = $this->getMount($path2);
-					$storage1 = $mount1->getStorage();
-					$internalPath1 = $mount1->getInternalPath($absolutePath1);
-					$storage2 = $mount2->getStorage();
-					$internalPath2 = $mount2->getInternalPath($absolutePath2);
-
-					$this->changeLock($path2, ILockingProvider::LOCK_EXCLUSIVE);
-					$lockTypePath2 = ILockingProvider::LOCK_EXCLUSIVE;
-
-					if ($mount1->getMountPoint() == $mount2->getMountPoint()) {
-						if ($storage1) {
-							$result = $storage1->copy($internalPath1, $internalPath2);
-						} else {
-							$result = false;
-						}
-					} else {
-						$result = $storage2->copyFromStorage($storage1, $internalPath1, $internalPath2);
-					}
-
-					$this->writeUpdate($storage2, $internalPath2);
-
-					$this->changeLock($path2, ILockingProvider::LOCK_SHARED);
-					$lockTypePath2 = ILockingProvider::LOCK_SHARED;
-
-					if ($this->shouldEmitHooks() && $result !== false) {
-						\OC_Hook::emit(
-							Filesystem::CLASSNAME,
-							Filesystem::signal_post_copy,
-							array(
-								Filesystem::signal_param_oldpath => $this->getHookPath($path1),
-								Filesystem::signal_param_newpath => $this->getHookPath($path2)
-							)
-						);
-						$this->emit_file_hooks_post($exists, $path2);
-					}
-
-				}
-			} catch (\Exception $e) {
-				$this->unlockFile($path2, $lockTypePath2);
-				$this->unlockFile($path1, $lockTypePath1);
-				throw $e;
-			}
-
-			$this->unlockFile($path2, $lockTypePath2);
-			$this->unlockFile($path1, $lockTypePath1);
-
-		}
-		return $result;
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $mode
-	 * @return resource
-	 */
-	public function fopen($path, $mode) {
-		$hooks = array();
-		switch ($mode) {
-			case 'r':
-			case 'rb':
-				$hooks[] = 'read';
-				break;
-			case 'r+':
-			case 'rb+':
-			case 'w+':
-			case 'wb+':
-			case 'x+':
-			case 'xb+':
-			case 'a+':
-			case 'ab+':
-				$hooks[] = 'read';
-				$hooks[] = 'write';
-				break;
-			case 'w':
-			case 'wb':
-			case 'x':
-			case 'xb':
-			case 'a':
-			case 'ab':
-				$hooks[] = 'write';
-				break;
-			default:
-				\OCP\Util::writeLog('core', 'invalid mode (' . $mode . ') for ' . $path, \OCP\Util::ERROR);
-		}
-
-		return $this->basicOperation('fopen', $path, $hooks, $mode);
-	}
-
-	/**
-	 * @param string $path
-	 * @return bool|string
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function toTmpFile($path) {
-		$this->assertPathLength($path);
-		if (Filesystem::isValidPath($path)) {
-			$source = $this->fopen($path, 'r');
-			if ($source) {
-				$extension = pathinfo($path, PATHINFO_EXTENSION);
-				$tmpFile = \OC::$server->getTempManager()->getTemporaryFile($extension);
-				file_put_contents($tmpFile, $source);
-				return $tmpFile;
-			} else {
-				return false;
-			}
-		} else {
-			return false;
-		}
-	}
-
-	/**
-	 * @param string $tmpFile
-	 * @param string $path
-	 * @return bool|mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function fromTmpFile($tmpFile, $path) {
-		$this->assertPathLength($path);
-		if (Filesystem::isValidPath($path)) {
-
-			// Get directory that the file is going into
-			$filePath = dirname($path);
-
-			// Create the directories if any
-			if (!$this->file_exists($filePath)) {
-				$this->mkdir($filePath);
-			}
-
-			$source = fopen($tmpFile, 'r');
-			if ($source) {
-				$result = $this->file_put_contents($path, $source);
-				// $this->file_put_contents() might have already closed
-				// the resource, so we check it, before trying to close it
-				// to avoid messages in the error log.
-				if (is_resource($source)) {
-					fclose($source);
-				}
-				unlink($tmpFile);
-				return $result;
-			} else {
-				return false;
-			}
-		} else {
-			return false;
-		}
-	}
-
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function getMimeType($path) {
-		$this->assertPathLength($path);
-		return $this->basicOperation('getMimeType', $path);
-	}
-
-	/**
-	 * @param string $type
-	 * @param string $path
-	 * @param bool $raw
-	 * @return bool|null|string
-	 */
-	public function hash($type, $path, $raw = false) {
-		$postFix = (substr($path, -1, 1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		if (Filesystem::isValidPath($path)) {
-			$path = $this->getRelativePath($absolutePath);
-			if ($path == null) {
-				return false;
-			}
-			if ($this->shouldEmitHooks($path)) {
-				\OC_Hook::emit(
-					Filesystem::CLASSNAME,
-					Filesystem::signal_read,
-					array(Filesystem::signal_param_path => $this->getHookPath($path))
-				);
-			}
-			list($storage, $internalPath) = Filesystem::resolvePath($absolutePath . $postFix);
-			if ($storage) {
-				$result = $storage->hash($type, $internalPath, $raw);
-				return $result;
-			}
-		}
-		return null;
-	}
-
-	/**
-	 * @param string $path
-	 * @return mixed
-	 * @throws \OCP\Files\InvalidPathException
-	 */
-	public function free_space($path = '/') {
-		$this->assertPathLength($path);
-		return $this->basicOperation('free_space', $path);
-	}
-
-	/**
-	 * abstraction layer for basic filesystem functions: wrapper for \OC\Files\Storage\Storage
-	 *
-	 * @param string $operation
-	 * @param string $path
-	 * @param array $hooks (optional)
-	 * @param mixed $extraParam (optional)
-	 * @return mixed
-	 * @throws \Exception
-	 *
-	 * This method takes requests for basic filesystem functions (e.g. reading & writing
-	 * files), processes hooks and proxies, sanitises paths, and finally passes them on to
-	 * \OC\Files\Storage\Storage for delegation to a storage backend for execution
-	 */
-	private function basicOperation($operation, $path, $hooks = [], $extraParam = null) {
-		$postFix = (substr($path, -1, 1) === '/') ? '/' : '';
-		$absolutePath = Filesystem::normalizePath($this->getAbsolutePath($path));
-		if (Filesystem::isValidPath($path)
-			and !Filesystem::isFileBlacklisted($path)
-		) {
-			$path = $this->getRelativePath($absolutePath);
-			if ($path == null) {
-				return false;
-			}
-
-			if (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks)) {
-				// always a shared lock during pre-hooks so the hook can read the file
-				$this->lockFile($path, ILockingProvider::LOCK_SHARED);
-			}
-
-			$run = $this->runHooks($hooks, $path);
-			/** @var \OC\Files\Storage\Storage $storage */
-			list($storage, $internalPath) = Filesystem::resolvePath($absolutePath . $postFix);
-			if ($run and $storage) {
-				if (in_array('write', $hooks) || in_array('delete', $hooks)) {
-					$this->changeLock($path, ILockingProvider::LOCK_EXCLUSIVE);
-				}
-				try {
-					if (!is_null($extraParam)) {
-						$result = $storage->$operation($internalPath, $extraParam);
-					} else {
-						$result = $storage->$operation($internalPath);
-					}
-				} catch (\Exception $e) {
-					if (in_array('write', $hooks) || in_array('delete', $hooks)) {
-						$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-					} else if (in_array('read', $hooks)) {
-						$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-					}
-					throw $e;
-				}
-
-				if (in_array('delete', $hooks) and $result) {
-					$this->removeUpdate($storage, $internalPath);
-				}
-				if (in_array('write', $hooks) and $operation !== 'fopen') {
-					$this->writeUpdate($storage, $internalPath);
-				}
-				if (in_array('touch', $hooks)) {
-					$this->writeUpdate($storage, $internalPath, $extraParam);
-				}
-
-				if ((in_array('write', $hooks) || in_array('delete', $hooks)) && ($operation !== 'fopen' || $result === false)) {
-					$this->changeLock($path, ILockingProvider::LOCK_SHARED);
-				}
-
-				$unlockLater = false;
-				if ($this->lockingEnabled && $operation === 'fopen' && is_resource($result)) {
-					$unlockLater = true;
-					$result = CallbackWrapper::wrap($result, null, null, function () use ($hooks, $path) {
-						if (in_array('write', $hooks)) {
-							$this->unlockFile($path, ILockingProvider::LOCK_EXCLUSIVE);
-						} else if (in_array('read', $hooks)) {
-							$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-						}
-					});
-				}
-
-				if ($this->shouldEmitHooks($path) && $result !== false) {
-					if ($operation != 'fopen') { //no post hooks for fopen, the file stream is still open
-						$this->runHooks($hooks, $path, true);
-					}
-				}
-
-				if (!$unlockLater
-					&& (in_array('write', $hooks) || in_array('delete', $hooks) || in_array('read', $hooks))
-				) {
-					$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-				}
-				return $result;
-			} else {
-				$this->unlockFile($path, ILockingProvider::LOCK_SHARED);
-			}
-		}
-		return null;
-	}
-
-	/**
-	 * get the path relative to the default root for hook usage
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	private function getHookPath($path) {
-		if (!Filesystem::getView()) {
-			return $path;
-		}
-		return Filesystem::getView()->getRelativePath($this->getAbsolutePath($path));
-	}
-
-	private function shouldEmitHooks($path = '') {
-		if ($path && Cache\Scanner::isPartialFile($path)) {
-			return false;
-		}
-		if (!Filesystem::$loaded) {
-			return false;
-		}
-		$defaultRoot = Filesystem::getRoot();
-		if ($defaultRoot === null) {
-			return false;
-		}
-		if ($this->fakeRoot === $defaultRoot) {
-			return true;
-		}
-		$fullPath = $this->getAbsolutePath($path);
-
-		if ($fullPath === $defaultRoot) {
-			return true;
-		}
-
-		return (strlen($fullPath) > strlen($defaultRoot)) && (substr($fullPath, 0, strlen($defaultRoot) + 1) === $defaultRoot . '/');
-	}
-
-	/**
-	 * @param string[] $hooks
-	 * @param string $path
-	 * @param bool $post
-	 * @return bool
-	 */
-	private function runHooks($hooks, $path, $post = false) {
-		$relativePath = $path;
-		$path = $this->getHookPath($path);
-		$prefix = ($post) ? 'post_' : '';
-		$run = true;
-		if ($this->shouldEmitHooks($relativePath)) {
-			foreach ($hooks as $hook) {
-				if ($hook != 'read') {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						$prefix . $hook,
-						array(
-							Filesystem::signal_param_run => &$run,
-							Filesystem::signal_param_path => $path
-						)
-					);
-				} elseif (!$post) {
-					\OC_Hook::emit(
-						Filesystem::CLASSNAME,
-						$prefix . $hook,
-						array(
-							Filesystem::signal_param_path => $path
-						)
-					);
-				}
-			}
-		}
-		return $run;
-	}
-
-	/**
-	 * check if a file or folder has been updated since $time
-	 *
-	 * @param string $path
-	 * @param int $time
-	 * @return bool
-	 */
-	public function hasUpdated($path, $time) {
-		return $this->basicOperation('hasUpdated', $path, array(), $time);
-	}
-
-	/**
-	 * @param string $ownerId
-	 * @return \OC\User\User
-	 */
-	private function getUserObjectForOwner($ownerId) {
-		$owner = $this->userManager->get($ownerId);
-		if ($owner instanceof IUser) {
-			return $owner;
-		} else {
-			return new User($ownerId, null);
-		}
-	}
-
-	/**
-	 * Get file info from cache
-	 *
-	 * If the file is not in cached it will be scanned
-	 * If the file has changed on storage the cache will be updated
-	 *
-	 * @param \OC\Files\Storage\Storage $storage
-	 * @param string $internalPath
-	 * @param string $relativePath
-	 * @return array|bool
-	 */
-	private function getCacheEntry($storage, $internalPath, $relativePath) {
-		$cache = $storage->getCache($internalPath);
-		$data = $cache->get($internalPath);
-		$watcher = $storage->getWatcher($internalPath);
-
-		try {
-			// if the file is not in the cache or needs to be updated, trigger the scanner and reload the data
-			if (!$data || $data['size'] === -1) {
-				$this->lockFile($relativePath, ILockingProvider::LOCK_SHARED);
-				if (!$storage->file_exists($internalPath)) {
-					$this->unlockFile($relativePath, ILockingProvider::LOCK_SHARED);
-					return false;
-				}
-				$scanner = $storage->getScanner($internalPath);
-				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
-				$data = $cache->get($internalPath);
-				$this->unlockFile($relativePath, ILockingProvider::LOCK_SHARED);
-			} else if (!Cache\Scanner::isPartialFile($internalPath) && $watcher->needsUpdate($internalPath, $data)) {
-				$this->lockFile($relativePath, ILockingProvider::LOCK_SHARED);
-				$watcher->update($internalPath, $data);
-				$storage->getPropagator()->propagateChange($internalPath, time());
-				$data = $cache->get($internalPath);
-				$this->unlockFile($relativePath, ILockingProvider::LOCK_SHARED);
-			}
-		} catch (LockedException $e) {
-			// if the file is locked we just use the old cache info
-		}
-
-		return $data;
-	}
-
-	/**
-	 * get the filesystem info
-	 *
-	 * @param string $path
-	 * @param boolean|string $includeMountPoints true to add mountpoint sizes,
-	 * 'ext' to add only ext storage mount point sizes. Defaults to true.
-	 * defaults to true
-	 * @return \OC\Files\FileInfo|false False if file does not exist
-	 */
-	public function getFileInfo($path, $includeMountPoints = true) {
-		$this->assertPathLength($path);
-		if (!Filesystem::isValidPath($path)) {
-			return false;
-		}
-		if (Cache\Scanner::isPartialFile($path)) {
-			return $this->getPartFileInfo($path);
-		}
-		$relativePath = $path;
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
-
-		$mount = Filesystem::getMountManager()->find($path);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($path);
-		if ($storage) {
-			$data = $this->getCacheEntry($storage, $internalPath, $relativePath);
-
-			if (!$data instanceof ICacheEntry) {
-				return false;
-			}
-
-			if ($mount instanceof MoveableMount && $internalPath === '') {
-				$data['permissions'] |= \OCP\Constants::PERMISSION_DELETE;
-			}
-
-			$owner = $this->getUserObjectForOwner($storage->getOwner($internalPath));
-			$info = new FileInfo($path, $storage, $internalPath, $data, $mount, $owner);
-
-			if ($data and isset($data['fileid'])) {
-				if ($includeMountPoints and $data['mimetype'] === 'httpd/unix-directory') {
-					//add the sizes of other mount points to the folder
-					$extOnly = ($includeMountPoints === 'ext');
-					$mounts = Filesystem::getMountManager()->findIn($path);
-					foreach ($mounts as $mount) {
-						$subStorage = $mount->getStorage();
-						if ($subStorage) {
-							// exclude shared storage ?
-							if ($extOnly && $subStorage instanceof \OC\Files\Storage\Shared) {
-								continue;
-							}
-							$subCache = $subStorage->getCache('');
-							$rootEntry = $subCache->get('');
-							$info->addSubEntry($rootEntry, $mount->getMountPoint());
-						}
-					}
-				}
-			}
-
-			return $info;
-		}
-
-		return false;
-	}
-
-	/**
-	 * get the content of a directory
-	 *
-	 * @param string $directory path under datadirectory
-	 * @param string $mimetype_filter limit returned content to this mimetype or mimepart
-	 * @return FileInfo[]
-	 */
-	public function getDirectoryContent($directory, $mimetype_filter = '') {
-		$this->assertPathLength($directory);
-		if (!Filesystem::isValidPath($directory)) {
-			return [];
-		}
-		$path = $this->getAbsolutePath($directory);
-		$path = Filesystem::normalizePath($path);
-		$mount = $this->getMount($directory);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($path);
-		if ($storage) {
-			$cache = $storage->getCache($internalPath);
-			$user = \OC_User::getUser();
-
-			$data = $this->getCacheEntry($storage, $internalPath, $directory);
-
-			if (!$data instanceof ICacheEntry || !isset($data['fileid']) || !($data->getPermissions() && Constants::PERMISSION_READ)) {
-				return [];
-			}
-
-			$folderId = $data['fileid'];
-			$contents = $cache->getFolderContentsById($folderId); //TODO: mimetype_filter
-
-			$sharingDisabled = \OCP\Util::isSharingDisabledForUser();
-			/**
-			 * @var \OC\Files\FileInfo[] $files
-			 */
-			$files = array_map(function (ICacheEntry $content) use ($path, $storage, $mount, $sharingDisabled) {
-				if ($sharingDisabled) {
-					$content['permissions'] = $content['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
-				}
-				$owner = $this->getUserObjectForOwner($storage->getOwner($content['path']));
-				return new FileInfo($path . '/' . $content['name'], $storage, $content['path'], $content, $mount, $owner);
-			}, $contents);
-
-			//add a folder for any mountpoint in this directory and add the sizes of other mountpoints to the folders
-			$mounts = Filesystem::getMountManager()->findIn($path);
-			$dirLength = strlen($path);
-			foreach ($mounts as $mount) {
-				$mountPoint = $mount->getMountPoint();
-				$subStorage = $mount->getStorage();
-				if ($subStorage) {
-					$subCache = $subStorage->getCache('');
-
-					$rootEntry = $subCache->get('');
-					if (!$rootEntry) {
-						$subScanner = $subStorage->getScanner('');
-						try {
-							$subScanner->scanFile('');
-						} catch (\OCP\Files\StorageNotAvailableException $e) {
-							continue;
-						} catch (\OCP\Files\StorageInvalidException $e) {
-							continue;
-						} catch (\Exception $e) {
-							// sometimes when the storage is not available it can be any exception
-							\OCP\Util::writeLog(
-								'core',
-								'Exception while scanning storage "' . $subStorage->getId() . '": ' .
-								get_class($e) . ': ' . $e->getMessage(),
-								\OCP\Util::ERROR
-							);
-							continue;
-						}
-						$rootEntry = $subCache->get('');
-					}
-
-					if ($rootEntry && ($rootEntry->getPermissions() && Constants::PERMISSION_READ)) {
-						$relativePath = trim(substr($mountPoint, $dirLength), '/');
-						if ($pos = strpos($relativePath, '/')) {
-							//mountpoint inside subfolder add size to the correct folder
-							$entryName = substr($relativePath, 0, $pos);
-							foreach ($files as &$entry) {
-								if ($entry->getName() === $entryName) {
-									$entry->addSubEntry($rootEntry, $mountPoint);
-								}
-							}
-						} else { //mountpoint in this folder, add an entry for it
-							$rootEntry['name'] = $relativePath;
-							$rootEntry['type'] = $rootEntry['mimetype'] === 'httpd/unix-directory' ? 'dir' : 'file';
-							$permissions = $rootEntry['permissions'];
-							// do not allow renaming/deleting the mount point if they are not shared files/folders
-							// for shared files/folders we use the permissions given by the owner
-							if ($mount instanceof MoveableMount) {
-								$rootEntry['permissions'] = $permissions | \OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE;
-							} else {
-								$rootEntry['permissions'] = $permissions & (\OCP\Constants::PERMISSION_ALL - (\OCP\Constants::PERMISSION_UPDATE | \OCP\Constants::PERMISSION_DELETE));
-							}
-
-							//remove any existing entry with the same name
-							foreach ($files as $i => $file) {
-								if ($file['name'] === $rootEntry['name']) {
-									unset($files[$i]);
-									break;
-								}
-							}
-							$rootEntry['path'] = substr(Filesystem::normalizePath($path . '/' . $rootEntry['name']), strlen($user) + 2); // full path without /$user/
-
-							// if sharing was disabled for the user we remove the share permissions
-							if (\OCP\Util::isSharingDisabledForUser()) {
-								$rootEntry['permissions'] = $rootEntry['permissions'] & ~\OCP\Constants::PERMISSION_SHARE;
-							}
-
-							$owner = $this->getUserObjectForOwner($subStorage->getOwner(''));
-							$files[] = new FileInfo($path . '/' . $rootEntry['name'], $subStorage, '', $rootEntry, $mount, $owner);
-						}
-					}
-				}
-			}
-
-			if ($mimetype_filter) {
-				$files = array_filter($files, function (FileInfo $file) use ($mimetype_filter) {
-					if (strpos($mimetype_filter, '/')) {
-						return $file->getMimetype() === $mimetype_filter;
-					} else {
-						return $file->getMimePart() === $mimetype_filter;
-					}
-				});
-			}
-
-			return $files;
-		} else {
-			return [];
-		}
-	}
-
-	/**
-	 * change file metadata
-	 *
-	 * @param string $path
-	 * @param array|\OCP\Files\FileInfo $data
-	 * @return int
-	 *
-	 * returns the fileid of the updated file
-	 */
-	public function putFileInfo($path, $data) {
-		$this->assertPathLength($path);
-		if ($data instanceof FileInfo) {
-			$data = $data->getData();
-		}
-		$path = Filesystem::normalizePath($this->fakeRoot . '/' . $path);
-		/**
-		 * @var \OC\Files\Storage\Storage $storage
-		 * @var string $internalPath
-		 */
-		list($storage, $internalPath) = Filesystem::resolvePath($path);
-		if ($storage) {
-			$cache = $storage->getCache($path);
-
-			if (!$cache->inCache($internalPath)) {
-				$scanner = $storage->getScanner($internalPath);
-				$scanner->scan($internalPath, Cache\Scanner::SCAN_SHALLOW);
-			}
-
-			return $cache->put($internalPath, $data);
-		} else {
-			return -1;
-		}
-	}
-
-	/**
-	 * search for files with the name matching $query
-	 *
-	 * @param string $query
-	 * @return FileInfo[]
-	 */
-	public function search($query) {
-		return $this->searchCommon('search', array('%' . $query . '%'));
-	}
-
-	/**
-	 * search for files with the name matching $query
-	 *
-	 * @param string $query
-	 * @return FileInfo[]
-	 */
-	public function searchRaw($query) {
-		return $this->searchCommon('search', array($query));
-	}
-
-	/**
-	 * search for files by mimetype
-	 *
-	 * @param string $mimetype
-	 * @return FileInfo[]
-	 */
-	public function searchByMime($mimetype) {
-		return $this->searchCommon('searchByMime', array($mimetype));
-	}
-
-	/**
-	 * search for files by tag
-	 *
-	 * @param string|int $tag name or tag id
-	 * @param string $userId owner of the tags
-	 * @return FileInfo[]
-	 */
-	public function searchByTag($tag, $userId) {
-		return $this->searchCommon('searchByTag', array($tag, $userId));
-	}
-
-	/**
-	 * @param string $method cache method
-	 * @param array $args
-	 * @return FileInfo[]
-	 */
-	private function searchCommon($method, $args) {
-		$files = array();
-		$rootLength = strlen($this->fakeRoot);
-
-		$mount = $this->getMount('');
-		$mountPoint = $mount->getMountPoint();
-		$storage = $mount->getStorage();
-		if ($storage) {
-			$cache = $storage->getCache('');
-
-			$results = call_user_func_array(array($cache, $method), $args);
-			foreach ($results as $result) {
-				if (substr($mountPoint . $result['path'], 0, $rootLength + 1) === $this->fakeRoot . '/') {
-					$internalPath = $result['path'];
-					$path = $mountPoint . $result['path'];
-					$result['path'] = substr($mountPoint . $result['path'], $rootLength);
-					$owner = \OC::$server->getUserManager()->get($storage->getOwner($internalPath));
-					$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
-				}
-			}
-
-			$mounts = Filesystem::getMountManager()->findIn($this->fakeRoot);
-			foreach ($mounts as $mount) {
-				$mountPoint = $mount->getMountPoint();
-				$storage = $mount->getStorage();
-				if ($storage) {
-					$cache = $storage->getCache('');
-
-					$relativeMountPoint = substr($mountPoint, $rootLength);
-					$results = call_user_func_array(array($cache, $method), $args);
-					if ($results) {
-						foreach ($results as $result) {
-							$internalPath = $result['path'];
-							$result['path'] = rtrim($relativeMountPoint . $result['path'], '/');
-							$path = rtrim($mountPoint . $internalPath, '/');
-							$owner = \OC::$server->getUserManager()->get($storage->getOwner($internalPath));
-							$files[] = new FileInfo($path, $storage, $internalPath, $result, $mount, $owner);
-						}
-					}
-				}
-			}
-		}
-		return $files;
-	}
-
-	/**
-	 * Get the owner for a file or folder
-	 *
-	 * @param string $path
-	 * @return string the user id of the owner
-	 * @throws NotFoundException
-	 */
-	public function getOwner($path) {
-		$info = $this->getFileInfo($path);
-		if (!$info) {
-			throw new NotFoundException($path . ' not found while trying to get owner');
-		}
-		return $info->getOwner()->getUID();
-	}
-
-	/**
-	 * get the ETag for a file or folder
-	 *
-	 * @param string $path
-	 * @return string
-	 */
-	public function getETag($path) {
-		/**
-		 * @var Storage\Storage $storage
-		 * @var string $internalPath
-		 */
-		list($storage, $internalPath) = $this->resolvePath($path);
-		if ($storage) {
-			return $storage->getETag($internalPath);
-		} else {
-			return null;
-		}
-	}
-
-	/**
-	 * Get the path of a file by id, relative to the view
-	 *
-	 * Note that the resulting path is not guarantied to be unique for the id, multiple paths can point to the same file
-	 *
-	 * @param int $id
-	 * @throws NotFoundException
-	 * @return string
-	 */
-	public function getPath($id) {
-		$id = (int)$id;
-		$manager = Filesystem::getMountManager();
-		$mounts = $manager->findIn($this->fakeRoot);
-		$mounts[] = $manager->find($this->fakeRoot);
-		// reverse the array so we start with the storage this view is in
-		// which is the most likely to contain the file we're looking for
-		$mounts = array_reverse($mounts);
-		foreach ($mounts as $mount) {
-			/**
-			 * @var \OC\Files\Mount\MountPoint $mount
-			 */
-			if ($mount->getStorage()) {
-				$cache = $mount->getStorage()->getCache();
-				$internalPath = $cache->getPathById($id);
-				if (is_string($internalPath)) {
-					$fullPath = $mount->getMountPoint() . $internalPath;
-					if (!is_null($path = $this->getRelativePath($fullPath))) {
-						return $path;
-					}
-				}
-			}
-		}
-		throw new NotFoundException(sprintf('File with id "%s" has not been found.', $id));
-	}
-
-	/**
-	 * @param string $path
-	 * @throws InvalidPathException
-	 */
-	private function assertPathLength($path) {
-		$maxLen = min(PHP_MAXPATHLEN, 4000);
-		// Check for the string length - performed using isset() instead of strlen()
-		// because isset() is about 5x-40x faster.
-		if (isset($path[$maxLen])) {
-			$pathLen = strlen($path);
-			throw new \OCP\Files\InvalidPathException("Path length($pathLen) exceeds max path length($maxLen): $path");
-		}
-	}
-
-	/**
-	 * check if it is allowed to move a mount point to a given target.
-	 * It is not allowed to move a mount point into a different mount point or
-	 * into an already shared folder
-	 *
-	 * @param string $target path
-	 * @return boolean
-	 */
-	private function isTargetAllowed($target) {
-
-		list($targetStorage, $targetInternalPath) = \OC\Files\Filesystem::resolvePath($target);
-		if (!$targetStorage->instanceOfStorage('\OCP\Files\IHomeStorage')) {
-			\OCP\Util::writeLog('files',
-				'It is not allowed to move one mount point into another one',
-				\OCP\Util::DEBUG);
-			return false;
-		}
-
-		// note: cannot use the view because the target is already locked
-		$fileId = (int)$targetStorage->getCache()->getId($targetInternalPath);
-		if ($fileId === -1) {
-			// target might not exist, need to check parent instead
-			$fileId = (int)$targetStorage->getCache()->getId(dirname($targetInternalPath));
-		}
-
-		// check if any of the parents were shared by the current owner (include collections)
-		$shares = \OCP\Share::getItemShared(
-			'folder',
-			$fileId,
-			\OCP\Share::FORMAT_NONE,
-			null,
-			true
-		);
-
-		if (count($shares) > 0) {
-			\OCP\Util::writeLog('files',
-				'It is not allowed to move one mount point into a shared folder',
-				\OCP\Util::DEBUG);
-			return false;
-		}
-
-		return true;
-	}
-
-	/**
-	 * Get a fileinfo object for files that are ignored in the cache (part files)
-	 *
-	 * @param string $path
-	 * @return \OCP\Files\FileInfo
-	 */
-	private function getPartFileInfo($path) {
-		$mount = $this->getMount($path);
-		$storage = $mount->getStorage();
-		$internalPath = $mount->getInternalPath($this->getAbsolutePath($path));
-		$owner = \OC::$server->getUserManager()->get($storage->getOwner($internalPath));
-		return new FileInfo(
-			$this->getAbsolutePath($path),
-			$storage,
-			$internalPath,
-			[
-				'fileid' => null,
-				'mimetype' => $storage->getMimeType($internalPath),
-				'name' => basename($path),
-				'etag' => null,
-				'size' => $storage->filesize($internalPath),
-				'mtime' => $storage->filemtime($internalPath),
-				'encrypted' => false,
-				'permissions' => \OCP\Constants::PERMISSION_ALL
-			],
-			$mount,
-			$owner
-		);
-	}
-
-	/**
-	 * @param string $path
-	 * @param string $fileName
-	 * @throws InvalidPathException
-	 */
-	public function verifyPath($path, $fileName) {
-
-		$l10n = \OC::$server->getL10N('lib');
-
-		// verify empty and dot files
-		$trimmed = trim($fileName);
-		if ($trimmed === '') {
-			throw new InvalidPathException($l10n->t('Empty filename is not allowed'));
-		}
-		if (\OC\Files\Filesystem::isIgnoredDir($trimmed)) {
-			throw new InvalidPathException($l10n->t('Dot files are not allowed'));
-		}
-
-		// verify database - e.g. mysql only 3-byte chars
-		if (preg_match('%(?:
-      \xF0[\x90-\xBF][\x80-\xBF]{2}      # planes 1-3
-    | [\xF1-\xF3][\x80-\xBF]{3}          # planes 4-15
-    | \xF4[\x80-\x8F][\x80-\xBF]{2}      # plane 16
-)%xs', $fileName)) {
-			throw new InvalidPathException($l10n->t('4-byte characters are not supported in file names'));
-		}
-
-		try {
-			/** @type \OCP\Files\Storage $storage */
-			list($storage, $internalPath) = $this->resolvePath($path);
-			$storage->verifyPath($internalPath, $fileName);
-		} catch (ReservedWordException $ex) {
-			throw new InvalidPathException($l10n->t('File name is a reserved word'));
-		} catch (InvalidCharacterInPathException $ex) {
-			throw new InvalidPathException($l10n->t('File name contains at least one invalid character'));
-		} catch (FileNameTooLongException $ex) {
-			throw new InvalidPathException($l10n->t('File name is too long'));
-		}
-	}
-
-	/**
-	 * get all parent folders of $path
-	 *
-	 * @param string $path
-	 * @return string[]
-	 */
-	private function getParents($path) {
-		$path = trim($path, '/');
-		if (!$path) {
-			return [];
-		}
-
-		$parts = explode('/', $path);
-
-		// remove the single file
-		array_pop($parts);
-		$result = array('/');
-		$resultPath = '';
-		foreach ($parts as $part) {
-			if ($part) {
-				$resultPath .= '/' . $part;
-				$result[] = $resultPath;
-			}
-		}
-		return $result;
-	}
-
-	/**
-	 * Returns the mount point for which to lock
-	 *
-	 * @param string $absolutePath absolute path
-	 * @param bool $useParentMount true to return parent mount instead of whatever
-	 * is mounted directly on the given path, false otherwise
-	 * @return \OC\Files\Mount\MountPoint mount point for which to apply locks
-	 */
-	private function getMountForLock($absolutePath, $useParentMount = false) {
-		$results = [];
-		$mount = Filesystem::getMountManager()->find($absolutePath);
-		if (!$mount) {
-			return $results;
-		}
-
-		if ($useParentMount) {
-			// find out if something is mounted directly on the path
-			$internalPath = $mount->getInternalPath($absolutePath);
-			if ($internalPath === '') {
-				// resolve the parent mount instead
-				$mount = Filesystem::getMountManager()->find(dirname($absolutePath));
-			}
-		}
-
-		return $mount;
-	}
-
-	/**
-	 * Lock the given path
-	 *
-	 * @param string $path the path of the file to lock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws \OCP\Lock\LockedException if the path is already locked
-	 */
-	private function lockPath($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			try {
-				$storage = $mount->getStorage();
-				if ($storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$storage->acquireLock(
-						$mount->getInternalPath($absolutePath),
-						$type,
-						$this->lockingProvider
-					);
-				}
-			} catch (\OCP\Lock\LockedException $e) {
-				// rethrow with the a human-readable path
-				throw new \OCP\Lock\LockedException(
-					$this->getPathRelativeToFiles($absolutePath),
-					$e
-				);
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Change the lock type
-	 *
-	 * @param string $path the path of the file to lock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 * @throws \OCP\Lock\LockedException if the path is already locked
-	 */
-	public function changeLock($path, $type, $lockMountPoint = false) {
-		$path = Filesystem::normalizePath($path);
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			try {
-				$storage = $mount->getStorage();
-				if ($storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-					$storage->changeLock(
-						$mount->getInternalPath($absolutePath),
-						$type,
-						$this->lockingProvider
-					);
-				}
-			} catch (\OCP\Lock\LockedException $e) {
-				// rethrow with the a human-readable path
-				throw new \OCP\Lock\LockedException(
-					$this->getPathRelativeToFiles($absolutePath),
-					$e
-				);
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Unlock the given path
-	 *
-	 * @param string $path the path of the file to unlock, relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 */
-	private function unlockPath($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$mount = $this->getMountForLock($absolutePath, $lockMountPoint);
-		if ($mount) {
-			$storage = $mount->getStorage();
-			if ($storage->instanceOfStorage('\OCP\Files\Storage\ILockingStorage')) {
-				$storage->releaseLock(
-					$mount->getInternalPath($absolutePath),
-					$type,
-					$this->lockingProvider
-				);
-			}
-		}
-
-		return true;
-	}
-
-	/**
-	 * Lock a path and all its parents up to the root of the view
-	 *
-	 * @param string $path the path of the file to lock relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 */
-	public function lockFile($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$this->lockPath($path, $type, $lockMountPoint);
-
-		$parents = $this->getParents($path);
-		foreach ($parents as $parent) {
-			$this->lockPath($parent, ILockingProvider::LOCK_SHARED);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Unlock a path and all its parents up to the root of the view
-	 *
-	 * @param string $path the path of the file to lock relative to the view
-	 * @param int $type \OCP\Lock\ILockingProvider::LOCK_SHARED or \OCP\Lock\ILockingProvider::LOCK_EXCLUSIVE
-	 * @param bool $lockMountPoint true to lock the mount point, false to lock the attached mount/storage
-	 *
-	 * @return bool False if the path is excluded from locking, true otherwise
-	 */
-	public function unlockFile($path, $type, $lockMountPoint = false) {
-		$absolutePath = $this->getAbsolutePath($path);
-		$absolutePath = Filesystem::normalizePath($absolutePath);
-		if (!$this->shouldLockFile($absolutePath)) {
-			return false;
-		}
-
-		$this->unlockPath($path, $type, $lockMountPoint);
-
-		$parents = $this->getParents($path);
-		foreach ($parents as $parent) {
-			$this->unlockPath($parent, ILockingProvider::LOCK_SHARED);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Only lock files in data/user/files/
-	 *
-	 * @param string $path Absolute path to the file/folder we try to (un)lock
-	 * @return bool
-	 */
-	protected function shouldLockFile($path) {
-		$path = Filesystem::normalizePath($path);
-
-		$pathSegments = explode('/', $path);
-		if (isset($pathSegments[2])) {
-			// E.g.: /username/files/path-to-file
-			return ($pathSegments[2] === 'files') && (count($pathSegments) > 3);
-		}
-
-		return true;
-	}
-
-	/**
-	 * Shortens the given absolute path to be relative to
-	 * "$user/files".
-	 *
-	 * @param string $absolutePath absolute path which is under "files"
-	 *
-	 * @return string path relative to "files" with trimmed slashes or null
-	 * if the path was NOT relative to files
-	 *
-	 * @throws \InvalidArgumentException if the given path was not under "files"
-	 * @since 8.1.0
-	 */
-	public function getPathRelativeToFiles($absolutePath) {
-		$path = Filesystem::normalizePath($absolutePath);
-		$parts = explode('/', trim($path, '/'), 3);
-		// "$user", "files", "path/to/dir"
-		if (!isset($parts[1]) || $parts[1] !== 'files') {
-			throw new \InvalidArgumentException('$absolutePath must be relative to "files"');
-		}
-		if (isset($parts[2])) {
-			return $parts[2];
-		}
-		return '';
-	}
-
-	/**
-	 * @param string $filename
-	 * @return array
-	 * @throws \OC\User\NoUserException
-	 * @throws NotFoundException
-	 */
-	public function getUidAndFilename($filename) {
-		$info = $this->getFileInfo($filename);
-		if (!$info instanceof \OCP\Files\FileInfo) {
-			throw new NotFoundException($this->getAbsolutePath($filename) . ' not found');
-		}
-		$uid = $info->getOwner()->getUID();
-		if ($uid != \OCP\User::getUser()) {
-			Filesystem::initMountPoints($uid);
-			$ownerView = new View('/' . $uid . '/files');
-			try {
-				$filename = $ownerView->getPath($info['fileid']);
-			} catch (NotFoundException $e) {
-				throw new NotFoundException('File with id ' . $info['fileid'] . ' not found for user ' . $uid);
-			}
-		}
-		return [$uid, $filename];
-	}
-}