Merge branch 'master' of https://github.com/owncloud/core

Conflicts:
	apps/files_external/appinfo/app.php

9 files changed, 317 insertions, 235 deletions

diff --git a/apps/files_external/lib/amazons3.php b/apps/files_external/lib/amazons3.php
index e5ef4eb097c..494885a1dd3 100644
--- a/apps/files_external/lib/amazons3.php
+++ b/apps/files_external/lib/amazons3.php
@@ -1,39 +1,43 @@
 <?php
 
 /**
-* ownCloud
-*
-* @author Michael Gapczynski
-* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
-*
-* You should have received a copy of the GNU Affero General Public
-* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
-*/
+ * ownCloud
+ *
+ * @author Michael Gapczynski
+ * @copyright 2012 Michael Gapczynski mtgap@owncloud.com
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public
+ * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OC\Files\Storage;
 
 require_once 'aws-sdk/sdk.class.php';
 
-class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
+class AmazonS3 extends \OC\Files\Storage\Common {
 
 	private $s3;
 	private $bucket;
 	private $objects = array();
+	private $id;
 
 	private static $tempFiles = array();
 
 	// TODO options: storage class, encryption server side, encrypt before upload?
 
 	public function __construct($params) {
-		$this->s3 = new AmazonS3(array('key' => $params['key'], 'secret' => $params['secret']));
+		$this->id = 'amazon::' . $params['key'] . md5($params['secret']);
+		$this->s3 = new \AmazonS3(array('key' => $params['key'], 'secret' => $params['secret']));
 		$this->bucket = $params['bucket'];
 	}
 
@@ -47,7 +51,7 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 				return $response;
 				// This object could be a folder, a '/' must be at the end of the path
 			} else if (substr($path, -1) != '/') {
-				$response = $this->s3->get_object_metadata($this->bucket, $path.'/');
+				$response = $this->s3->get_object_metadata($this->bucket, $path . '/');
 				if ($response) {
 					$this->objects[$path] = $response;
 					return $response;
@@ -57,6 +61,10 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 		return false;
 	}
 
+	public function getId() {
+		return $this->id;
+	}
+
 	public function mkdir($path) {
 		// Folders in Amazon S3 are 0 byte objects with a '/' at the end of the name
 		if (substr($path, -1) != '/') {
@@ -96,8 +104,8 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 			foreach ($response->body->CommonPrefixes as $object) {
 				$files[] = basename($object->Prefix);
 			}
-			OC_FakeDirStream::$dirs['amazons3'.$path] = $files;
-			return opendir('fakedir://amazons3'.$path);
+			\OC\Files\Stream\Dir::register('amazons3' . $path, $files);
+			return opendir('fakedir://amazons3' . $path);
 		}
 		return false;
 	}
@@ -107,15 +115,10 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 			$stat['size'] = $this->s3->get_bucket_filesize($this->bucket);
 			$stat['atime'] = time();
 			$stat['mtime'] = $stat['atime'];
-			$stat['ctime'] = $stat['atime'];
-		} else {
-			$object = $this->getObject($path);
-			if ($object) {
-				$stat['size'] = $object['Size'];
-				$stat['atime'] = time();
-				$stat['mtime'] = strtotime($object['LastModified']);
-				$stat['ctime'] = $stat['mtime'];
-			}
+		} else if ($object = $this->getObject($path)) {
+			$stat['size'] = $object['Size'];
+			$stat['atime'] = time();
+			$stat['mtime'] = strtotime($object['LastModified']);
 		}
 		if (isset($stat)) {
 			return $stat;
@@ -166,7 +169,7 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 		switch ($mode) {
 			case 'r':
 			case 'rb':
-				$tmpFile = OC_Helper::tmpFile();
+				$tmpFile = \OC_Helper::tmpFile();
 				$handle = fopen($tmpFile, 'w');
 				$response = $this->s3->get_object($this->bucket, $path, array('fileDownload' => $handle));
 				if ($response->isOK()) {
@@ -190,14 +193,14 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 				} else {
 					$ext = '';
 				}
-				$tmpFile = OC_Helper::tmpFile($ext);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile] = array($this, 'writeBack');
+				$tmpFile = \OC_Helper::tmpFile($ext);
+				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
 				if ($this->file_exists($path)) {
 					$source = $this->fopen($path, 'r');
 					file_put_contents($tmpFile, $source);
 				}
 				self::$tempFiles[$tmpFile] = $path;
-				return fopen('close://'.$tmpFile, $mode);
+				return fopen('close://' . $tmpFile, $mode);
 		}
 		return false;
 	}
@@ -206,8 +209,8 @@ class OC_Filestorage_AmazonS3 extends OC_Filestorage_Common {
 		if (isset(self::$tempFiles[$tmpFile])) {
 			$handle = fopen($tmpFile, 'r');
 			$response = $this->s3->create_object($this->bucket,
-												 self::$tempFiles[$tmpFile],
-												 array('fileUpload' => $handle));
+				self::$tempFiles[$tmpFile],
+				array('fileUpload' => $handle));
 			if ($response->isOK()) {
 				unlink($tmpFile);
 			}
diff --git a/apps/files_external/lib/config.php b/apps/files_external/lib/config.php
index 2038939153c..47f0810ec54 100755
--- a/apps/files_external/lib/config.php
+++ b/apps/files_external/lib/config.php
@@ -38,20 +38,20 @@ class OC_Mount_Config {
 	* @return array
 	*/
 	public static function getBackends() {
-
-		$backends['OC_Filestorage_Local']=array(
+		
+		$backends['\OC\Files\Storage\Local']=array(
 				'backend' => 'Local',
 				'configuration' => array(
 					'datadir' => 'Location'));
 
-		$backends['OC_Filestorage_AmazonS3']=array(
+		$backends['\OC\Files\Storage\AmazonS3']=array(
 			'backend' => 'Amazon S3',
 			'configuration' => array(
 				'key' => 'Key',
 				'secret' => '*Secret',
 				'bucket' => 'Bucket'));
 
-		$backends['OC_Filestorage_Dropbox']=array(
+		$backends['\OC\Files\Storage\Dropbox']=array(
 			'backend' => 'Dropbox',
 			'configuration' => array(
 				'configured' => '#configured',
@@ -61,7 +61,7 @@ class OC_Mount_Config {
 				'token_secret' => '#token_secret'),
 				'custom' => 'dropbox');
 
-		if(OC_Mount_Config::checkphpftp()) $backends['OC_Filestorage_FTP']=array(
+		if(OC_Mount_Config::checkphpftp()) $backends['\OC\Files\Storage\FTP']=array(
 			'backend' => 'FTP',
 			'configuration' => array(
 				'host' => 'URL',
@@ -70,15 +70,15 @@ class OC_Mount_Config {
 				'root' => '&Root',
 				'secure' => '!Secure ftps://'));
 
-		$backends['OC_Filestorage_Google']=array(
+		$backends['\OC\Files\Storage\Google']=array(
 			'backend' => 'Google Drive',
 			'configuration' => array(
 				'configured' => '#configured',
 				'token' => '#token',
 				'token_secret' => '#token secret'),
 				'custom' => 'google');
-
-		$backends['OC_Filestorage_SWIFT']=array(
+		
+		$backends['\OC\Files\Storage\SWIFT']=array(
 			'backend' => 'OpenStack Swift',
 			'configuration' => array(
 				'host' => 'URL',
@@ -86,8 +86,8 @@ class OC_Mount_Config {
 				'token' => '*Token',
 				'root' => '&Root',
 				'secure' => '!Secure ftps://'));
-
-		if(OC_Mount_Config::checksmbclient()) $backends['OC_Filestorage_SMB']=array(
+							
+		if(OC_Mount_Config::checksmbclient()) $backends['\OC\Files\Storage\SMB']=array(
 			'backend' => 'SMB / CIFS',
 			'configuration' => array(
 				'host' => 'URL',
@@ -95,8 +95,8 @@ class OC_Mount_Config {
 				'password' => '*Password',
 				'share' => 'Share',
 				'root' => '&Root'));
-
-		$backends['OC_Filestorage_DAV']=array(
+				
+		$backends['\OC\Files\Storage\DAV']=array(
 			'backend' => 'ownCloud / WebDAV',
 			'configuration' => array(
 				'host' => 'URL',
@@ -128,6 +128,10 @@ class OC_Mount_Config {
 		if (isset($mountPoints[self::MOUNT_TYPE_GROUP])) {
 			foreach ($mountPoints[self::MOUNT_TYPE_GROUP] as $group => $mounts) {
 				foreach ($mounts as $mountPoint => $mount) {
+					// Update old classes to new namespace
+					if (strpos($mount['class'], 'OC_Filestorage_') !== false) {
+						$mount['class'] = '\OC\Files\Storage\\'.substr($mount['class'], 15);
+					}
 					// Remove '/$user/files/' from mount point
 					$mountPoint = substr($mountPoint, 13);
 					// Merge the mount point into the current mount points
@@ -147,6 +151,10 @@ class OC_Mount_Config {
 		if (isset($mountPoints[self::MOUNT_TYPE_USER])) {
 			foreach ($mountPoints[self::MOUNT_TYPE_USER] as $user => $mounts) {
 				foreach ($mounts as $mountPoint => $mount) {
+					// Update old classes to new namespace
+					if (strpos($mount['class'], 'OC_Filestorage_') !== false) {
+						$mount['class'] = '\OC\Files\Storage\\'.substr($mount['class'], 15);
+					}
 					// Remove '/$user/files/' from mount point
 					$mountPoint = substr($mountPoint, 13);
 					// Merge the mount point into the current mount points
@@ -177,6 +185,10 @@ class OC_Mount_Config {
 		$personal = array();
 		if (isset($mountPoints[self::MOUNT_TYPE_USER][$uid])) {
 			foreach ($mountPoints[self::MOUNT_TYPE_USER][$uid] as $mountPoint => $mount) {
+				// Update old classes to new namespace
+				if (strpos($mount['class'], 'OC_Filestorage_') !== false) {
+					$mount['class'] = '\OC\Files\Storage\\'.substr($mount['class'], 15);
+				}
 				// Remove '/uid/files/' from mount point
 				$personal[substr($mountPoint, strlen($uid) + 8)] = array('class' => $mount['class'],
 																'backend' => $backends[$mount['class']]['backend'],
@@ -187,22 +199,6 @@ class OC_Mount_Config {
 	}
 
 	/**
-	 * Add directory for mount point to the filesystem
-	 * @param OC_Fileview instance $view
-	 * @param string path to mount point
-	 */
-	private static function addMountPointDirectory($view, $path) {
-		$dir = '';
-		foreach ( explode('/', $path) as $pathPart) {
-			$dir = $dir.'/'.$pathPart;
-			if ( !$view->file_exists($dir)) {
-				$view->mkdir($dir);
-			}
-		}
-	}
-
-
-	/**
 	* Add a mount point to the filesystem
 	* @param string Mount point
 	* @param string Backend class
@@ -221,36 +217,11 @@ class OC_Mount_Config {
 		if ($isPersonal) {
 			// Verify that the mount point applies for the current user
 			// Prevent non-admin users from mounting local storage
-			if ($applicable != OCP\User::getUser() || $class == 'OC_Filestorage_Local') {
+			if ($applicable != OCP\User::getUser() || $class == '\OC\Files\Storage\Local') {
 				return false;
 			}
-			$view = new OC_FilesystemView('/'.OCP\User::getUser().'/files');
-			self::addMountPointDirectory($view, ltrim($mountPoint, '/'));
 			$mountPoint = '/'.$applicable.'/files/'.ltrim($mountPoint, '/');
 		} else {
-			$view = new OC_FilesystemView('/');
-			switch ($mountType) {
-				case 'user':
-					if ($applicable == "all") {
-						$users = OCP\User::getUsers();
-						foreach ( $users as $user ) {
-							$path = $user.'/files/'.ltrim($mountPoint, '/');
-							self::addMountPointDirectory($view, $path);
-						}
-					} else {
-						$path = $applicable.'/files/'.ltrim($mountPoint, '/');
-						self::addMountPointDirectory($view, $path);
-					}
-					break;
-				case 'group' :
-					$groupMembers = OC_Group::usersInGroups(array($applicable));
-					foreach ( $groupMembers as $user ) {
-						$path =  $user.'/files/'.ltrim($mountPoint, '/');
-						self::addMountPointDirectory($view, $path);
-					}
-					break;
-			}
-
 			$mountPoint = '/$user/files/'.ltrim($mountPoint, '/');
 		}
 		$mount = array($applicable => array($mountPoint => array('class' => $class, 'options' => $classOptions)));
diff --git a/apps/files_external/lib/dropbox.php b/apps/files_external/lib/dropbox.php
index 33ca14cab15..11644e4a2c8 100755
--- a/apps/files_external/lib/dropbox.php
+++ b/apps/files_external/lib/dropbox.php
@@ -20,12 +20,15 @@
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+namespace OC\Files\Storage;
+
 require_once 'Dropbox/autoload.php';
 
-class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
+class Dropbox extends \OC\Files\Storage\Common {
 
 	private $dropbox;
 	private $root;
+	private $id;
 	private $metaData = array();
 
 	private static $tempFiles = array();
@@ -37,13 +40,14 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			&& isset($params['token'])
 			&& isset($params['token_secret'])
 		) {
+			$this->id = 'dropbox::'.$params['app_key'] . $params['token']. '/' . $params['root'];
 			$this->root=isset($params['root'])?$params['root']:'';
-			$oauth = new Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
+			$oauth = new \Dropbox_OAuth_Curl($params['app_key'], $params['app_secret']);
 			$oauth->setToken($params['token'], $params['token_secret']);
-			$this->dropbox = new Dropbox_API($oauth, 'dropbox');
+			$this->dropbox = new \Dropbox_API($oauth, 'dropbox');
 			$this->mkdir('');
 		} else {
-			throw new Exception('Creating OC_Filestorage_Dropbox storage failed');
+			throw new \Exception('Creating \OC\Files\Storage\Dropbox storage failed');
 		}
 	}
 
@@ -55,8 +59,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			if ($list) {
 				try {
 					$response = $this->dropbox->getMetaData($path);
-				} catch (Exception $exception) {
-					OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+				} catch (\Exception $exception) {
+					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 					return false;
 				}
 				if ($response && isset($response['contents'])) {
@@ -76,21 +80,25 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 					$response = $this->dropbox->getMetaData($path, 'false');
 					$this->metaData[$path] = $response;
 					return $response;
-				} catch (Exception $exception) {
-					OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+				} catch (\Exception $exception) {
+					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 					return false;
 				}
 			}
 		}
 	}
 
+	public function getId(){
+		return $this->id;
+	}
+
 	public function mkdir($path) {
 		$path = $this->root.$path;
 		try {
 			$this->dropbox->createFolder($path);
 			return true;
-		} catch (Exception $exception) {
-			OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+		} catch (\Exception $exception) {
+			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	}
@@ -106,7 +114,7 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			foreach ($contents as $file) {
 				$files[] = basename($file['path']);
 			}
-			OC_FakeDirStream::$dirs['dropbox'.$path] = $files;
+			\OC\Files\Stream\Dir::register('dropbox'.$path, $files);
 			return opendir('fakedir://dropbox'.$path);
 		}
 		return false;
@@ -118,7 +126,6 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			$stat['size'] = $metaData['bytes'];
 			$stat['atime'] = time();
 			$stat['mtime'] = (isset($metaData['modified'])) ? strtotime($metaData['modified']) : time();
-			$stat['ctime'] = $stat['mtime'];
 			return $stat;
 		}
 		return false;
@@ -163,8 +170,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 		try {
 			$this->dropbox->delete($path);
 			return true;
-		} catch (Exception $exception) {
-			OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+		} catch (\Exception $exception) {
+			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	}
@@ -175,8 +182,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 		try {
 			$this->dropbox->move($path1, $path2);
 			return true;
-		} catch (Exception $exception) {
-			OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+		} catch (\Exception $exception) {
+			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	}
@@ -187,8 +194,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 		try {
 			$this->dropbox->copy($path1, $path2);
 			return true;
-		} catch (Exception $exception) {
-			OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+		} catch (\Exception $exception) {
+			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	}
@@ -198,13 +205,13 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 		switch ($mode) {
 			case 'r':
 			case 'rb':
-				$tmpFile = OC_Helper::tmpFile();
+				$tmpFile = \OC_Helper::tmpFile();
 				try {
 					$data = $this->dropbox->getFile($path);
 					file_put_contents($tmpFile, $data);
 					return fopen($tmpFile, 'r');
-				} catch (Exception $exception) {
-					OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+				} catch (\Exception $exception) {
+					\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 					return false;
 				}
 			case 'w':
@@ -224,8 +231,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 				} else {
 					$ext = '';
 				}
-				$tmpFile = OC_Helper::tmpFile($ext);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile] = array($this, 'writeBack');
+				$tmpFile = \OC_Helper::tmpFile($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);
@@ -242,8 +249,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 			try {
 				$this->dropbox->putFile(self::$tempFiles[$tmpFile], $handle);
 				unlink($tmpFile);
-			} catch (Exception $exception) {
-				OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+			} catch (\Exception $exception) {
+				\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			}
 		}
 	}
@@ -264,8 +271,8 @@ class OC_Filestorage_Dropbox extends OC_Filestorage_Common {
 		try {
 			$info = $this->dropbox->getAccountInfo();
 			return $info['quota_info']['quota'] - $info['quota_info']['normal'];
-		} catch (Exception $exception) {
-			OCP\Util::writeLog('files_external', $exception->getMessage(), OCP\Util::ERROR);
+		} catch (\Exception $exception) {
+			\OCP\Util::writeLog('files_external', $exception->getMessage(), \OCP\Util::ERROR);
 			return false;
 		}
 	}
diff --git a/apps/files_external/lib/ftp.php b/apps/files_external/lib/ftp.php
index e796ae446bf..9a27b63323a 100644
--- a/apps/files_external/lib/ftp.php
+++ b/apps/files_external/lib/ftp.php
@@ -6,7 +6,9 @@
  * See the COPYING-README file.
  */
 
-class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
+namespace OC\Files\Storage;
+
+class FTP extends \OC\Files\Storage\StreamWrapper{
 	private $password;
 	private $user;
 	private $host;
@@ -38,9 +40,13 @@ class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
 		}
 	}
 
+	public function getId(){
+		return 'ftp::' . $this->user . '@' . $this->host . '/' . $this->root;
+	}
+
 	/**
 	 * construct the ftp url
-	 * @param string path
+	 * @param string $path
 	 * @return string
 	 */
 	public function constructUrl($path) {
@@ -51,7 +57,8 @@ class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
 		$url.='://'.$this->user.':'.$this->password.'@'.$this->host.$this->root.$path;
 		return $url;
 	}
-	public function fopen($path, $mode) {
+	public function fopen($path,$mode) {
+		$this->init();
 		switch($mode) {
 			case 'r':
 			case 'rb':
@@ -61,7 +68,7 @@ class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
 			case 'ab':
 				//these are supported by the wrapper
 				$context = stream_context_create(array('ftp' => array('overwrite' => true)));
-				return fopen($this->constructUrl($path), $mode, false, $context);
+				return fopen($this->constructUrl($path),$mode, false,$context);
 			case 'r+':
 			case 'w+':
 			case 'wb+':
@@ -77,16 +84,18 @@ class OC_FileStorage_FTP extends OC_FileStorage_StreamWrapper{
 					$ext='';
 				}
 				$tmpFile=OCP\Files::tmpFile($ext);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this, 'writeBack');
+				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
 				if ($this->file_exists($path)) {
 					$this->getFile($path, $tmpFile);
 				}
 				self::$tempFiles[$tmpFile]=$path;
-				return fopen('close://'.$tmpFile, $mode);
+				return fopen('close://'.$tmpFile,$mode);
 		}
+		return false;
 	}
 
 	public function writeBack($tmpFile) {
+		$this->init();
 		if (isset(self::$tempFiles[$tmpFile])) {
 			$this->uploadFile($tmpFile, self::$tempFiles[$tmpFile]);
 			unlink($tmpFile);
diff --git a/apps/files_external/lib/google.php b/apps/files_external/lib/google.php
index c836a5a07c0..7396c7e3f27 100644
--- a/apps/files_external/lib/google.php
+++ b/apps/files_external/lib/google.php
@@ -20,14 +20,17 @@
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
+namespace OC\Files\Storage;
+
 require_once 'Google/common.inc.php';
 
-class OC_Filestorage_Google extends OC_Filestorage_Common {
+class Google extends \OC\Files\Storage\Common {
 
 	private $consumer;
 	private $oauth_token;
 	private $sig_method;
 	private $entries;
+	private $id;
 
 	private static $tempFiles = array();
 
@@ -38,12 +41,13 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 		) {
 			$consumer_key = isset($params['consumer_key']) ? $params['consumer_key'] : 'anonymous';
 			$consumer_secret = isset($params['consumer_secret']) ? $params['consumer_secret'] : 'anonymous';
-			$this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
-			$this->oauth_token = new OAuthToken($params['token'], $params['token_secret']);
-			$this->sig_method = new OAuthSignatureMethod_HMAC_SHA1();
+			$this->id = 'google::' . $params['token'];
+			$this->consumer = new \OAuthConsumer($consumer_key, $consumer_secret);
+			$this->oauth_token = new \OAuthToken($params['token'], $params['token_secret']);
+			$this->sig_method = new \OAuthSignatureMethod_HMAC_SHA1();
 			$this->entries = array();
 		} else {
-			throw new Exception('Creating OC_Filestorage_Google storage failed');
+			throw new \Exception('Creating \OC\Files\Storage\Google storage failed');
 		}
 	}
 
@@ -68,7 +72,7 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 			$tempStr .= '&' . urlencode($key) . '=' . urlencode($value);
 		}
 		$uri = preg_replace('/&/', '?', $tempStr, 1);
-		$request = OAuthRequest::from_consumer_and_token($this->consumer,
+		$request = \OAuthRequest::from_consumer_and_token($this->consumer,
 														 $this->oauth_token,
 														 $httpMethod,
 														 $uri,
@@ -110,7 +114,7 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 				curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
 		}
 		if ($isDownload) {
-			$tmpFile = OC_Helper::tmpFile();
+			$tmpFile = \OC_Helper::tmpFile();
 			$handle = fopen($tmpFile, 'w');
 			curl_setopt($curl, CURLOPT_FILE, $handle);
 		}
@@ -139,7 +143,7 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 	private function getFeed($feedUri, $httpMethod, $postData = null) {
 		$result = $this->sendRequest($feedUri, $httpMethod, $postData);
 		if ($result) {
-			$dom = new DOMDocument();
+			$dom = new \DOMDocument();
 			$dom->loadXML($result);
 			return $dom;
 		}
@@ -194,6 +198,9 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 		}
 	}
 
+	public function getId(){
+		return $this->id;
+	}
 
 	public function mkdir($path) {
 		$collection = dirname($path);
@@ -266,7 +273,7 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 				$this->entries[$name] = $entry;
 			}
 		}
-		OC_FakeDirStream::$dirs['google'.$path] = $files;
+		\OC\Files\Stream\Dir::register('google'.$path, $files);
 		return opendir('fakedir://google'.$path);
 	}
 
@@ -287,7 +294,6 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 				//$stat['atime'] = strtotime($entry->getElementsByTagNameNS('http://schemas.google.com/g/2005',
 				//															'lastViewed')->item(0)->nodeValue);
 				$stat['mtime'] = strtotime($entry->getElementsByTagName('updated')->item(0)->nodeValue);
-				$stat['ctime'] = strtotime($entry->getElementsByTagName('published')->item(0)->nodeValue);
 			}
 		}
 		if (isset($stat)) {
@@ -443,8 +449,8 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 				} else {
 					$ext = '';
 				}
-				$tmpFile = OC_Helper::tmpFile($ext);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile] = array($this, 'writeBack');
+				$tmpFile = \OC_Helper::tmpFile($ext);
+				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
 				if ($this->file_exists($path)) {
 					$source = $this->fopen($path, 'r');
 					file_put_contents($tmpFile, $source);
@@ -482,7 +488,7 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 		}
 		if (isset($uploadUri) && $handle = fopen($path, 'r')) {
 			$uploadUri .= '?convert=false';
-			$mimetype = OC_Helper::getMimeType($path);
+			$mimetype = \OC_Helper::getMimeType($path);
 			$size = filesize($path);
 			$headers = array('X-Upload-Content-Type: ' => $mimetype, 'X-Upload-Content-Length: ' => $size);
 			$postData = '<?xml version="1.0" encoding="UTF-8"?>';
@@ -590,4 +596,4 @@ class OC_Filestorage_Google extends OC_Filestorage_Common {
 
 	}
 
-}
\ No newline at end of file
+}
diff --git a/apps/files_external/lib/smb.php b/apps/files_external/lib/smb.php
index 071a9cd5f95..96778b0b2e1 100644
--- a/apps/files_external/lib/smb.php
+++ b/apps/files_external/lib/smb.php
@@ -6,9 +6,11 @@
  * See the COPYING-README file.
  */
 
+namespace OC\Files\Storage;
+
 require_once 'smb4php/smb.php';
 
-class OC_FileStorage_SMB extends OC_FileStorage_StreamWrapper{
+class SMB extends \OC\Files\Storage\StreamWrapper{
 	private $password;
 	private $user;
 	private $host;
@@ -30,14 +32,13 @@ class OC_FileStorage_SMB extends OC_FileStorage_StreamWrapper{
 		if ( ! $this->share || $this->share[0]!='/') {
 			$this->share='/'.$this->share;
 		}
-		if (substr($this->share, -1, 1)=='/') {
-			$this->share=substr($this->share, 0, -1);
+		if(substr($this->share, -1, 1)=='/') {
+			$this->share = substr($this->share,0,-1);
 		}
+	}
 
-		//create the root folder if necesary
-		if ( ! $this->is_dir('')) {
-			$this->mkdir('');
-		}
+	public function getId(){
+		return 'smb::' . $this->user . '@' . $this->host . '/' . $this->share . '/' . $this->root;
 	}
 
 	public function constructUrl($path) {
@@ -65,11 +66,13 @@ class OC_FileStorage_SMB extends OC_FileStorage_StreamWrapper{
 
 	/**
 	 * 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 ( ! $path and $this->root=='/') {
+	public function hasUpdated($path,$time) {
+		$this->init();
+		if(!$path and $this->root=='/') {
 			// mtime doesn't work for shares, but giving the nature of the backend,
 			// doing a full update is still just fast enough
 			return true;
diff --git a/apps/files_external/lib/streamwrapper.php b/apps/files_external/lib/streamwrapper.php
index a386e333995..7c3ddcf8a2c 100644
--- a/apps/files_external/lib/streamwrapper.php
+++ b/apps/files_external/lib/streamwrapper.php
@@ -6,16 +6,33 @@
  * See the COPYING-README file.
  */
 
+namespace OC\Files\Storage;
+
+abstract class StreamWrapper extends \OC\Files\Storage\Common{
+	private $ready = false;
+
+	protected function init(){
+		if($this->ready){
+			return;
+		}
+		$this->ready = true;
+
+		//create the root folder if necesary
+		if(!$this->is_dir('')) {
+			$this->mkdir('');
+		}
+	}
 
-abstract class OC_FileStorage_StreamWrapper extends OC_Filestorage_Common{
 	abstract public function constructUrl($path);
 
 	public function mkdir($path) {
+		$this->init();
 		return mkdir($this->constructUrl($path));
 	}
 
 	public function rmdir($path) {
-		if ($this->file_exists($path)) {
+		$this->init();
+		if($this->file_exists($path)) {
 			$succes = rmdir($this->constructUrl($path));
 			clearstatcache();
 			return $succes;
@@ -25,10 +42,12 @@ abstract class OC_FileStorage_StreamWrapper extends OC_Filestorage_Common{
 	}
 
 	public function opendir($path) {
+		$this->init();
 		return opendir($this->constructUrl($path));
 	}
 
 	public function filetype($path) {
+		$this->init();
 		return filetype($this->constructUrl($path));
 	}
 
@@ -41,46 +60,54 @@ abstract class OC_FileStorage_StreamWrapper extends OC_Filestorage_Common{
 	}
 
 	public function file_exists($path) {
+		$this->init();
 		return file_exists($this->constructUrl($path));
 	}
 
 	public function unlink($path) {
+		$this->init();
 		$succes = unlink($this->constructUrl($path));
 		clearstatcache();
 		return $succes;
 	}
 
-	public function fopen($path, $mode) {
-		return fopen($this->constructUrl($path), $mode);
+	public function fopen($path,$mode) {
+		$this->init();
+		return fopen($this->constructUrl($path),$mode);
 	}
 
 	public function free_space($path) {
 		return 0;
 	}
 
-	public function touch($path, $mtime = null) {
-		if (is_null($mtime)) {
-			$fh = $this->fopen($path, 'a');
-			fwrite($fh, '');
+	public function touch($path,$mtime=null) {
+		$this->init();
+		if(is_null($mtime)) {
+			$fh = $this->fopen($path,'a');
+			fwrite($fh,'');
 			fclose($fh);
 		} else {
 			return false;//not supported
 		}
 	}
 
-	public function getFile($path, $target) {
-		return copy($this->constructUrl($path), $target);
+	public function getFile($path,$target) {
+		$this->init();
+		return copy($this->constructUrl($path),$target);
 	}
 
-	public function uploadFile($path, $target) {
-		return copy($path, $this->constructUrl($target));
+	public function uploadFile($path,$target) {
+		$this->init();
+		return copy($path,$this->constructUrl($target));
 	}
 
-	public function rename($path1, $path2) {
-		return rename($this->constructUrl($path1), $this->constructUrl($path2));
+	public function rename($path1,$path2) {
+		$this->init();
+		return rename($this->constructUrl($path1),$this->constructUrl($path2));
 	}
 
 	public function stat($path) {
+		$this->init();
 		return stat($this->constructUrl($path));
 	}
 
diff --git a/apps/files_external/lib/swift.php b/apps/files_external/lib/swift.php
index a071dfdbb03..cbf2007052b 100644
--- a/apps/files_external/lib/swift.php
+++ b/apps/files_external/lib/swift.php
@@ -6,24 +6,28 @@
  * See the COPYING-README file.
  */
 
+namespace OC\Files\Storage;
+
 require_once 'php-cloudfiles/cloudfiles.php';
 
-class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
+class SWIFT extends \OC\Files\Storage\Common{
+	private $id;
 	private $host;
 	private $root;
 	private $user;
 	private $token;
 	private $secure;
+	private $ready = false;
 	/**
-	 * @var CF_Authentication auth
+	 * @var \CF_Authentication auth
 	 */
 	private $auth;
 	/**
-	 * @var CF_Connection conn
+	 * @var \CF_Connection conn
 	 */
 	private $conn;
 	/**
-	 * @var CF_Container rootContainer
+	 * @var \CF_Container rootContainer
 	 */
 	private $rootContainer;
 
@@ -35,18 +39,18 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * translate directory path to container name
-	 * @param string path
+	 * @param string $path
 	 * @return string
 	 */
 	private function getContainerName($path) {
-		$path=trim(trim($this->root, '/')."/".$path, '/.');
+		$path=trim(trim($this->root, '/') . "/".$path, '/.');
 		return str_replace('/', '\\', $path);
 	}
 
 	/**
 	 * get container by path
-	 * @param string path
-	 * @return CF_Container
+	 * @param string $path
+	 * @return \CF_Container
 	 */
 	private function getContainer($path) {
 		if ($path=='' or $path=='/') {
@@ -59,15 +63,15 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 			$container=$this->conn->get_container($this->getContainerName($path));
 			$this->containers[$path]=$container;
 			return $container;
-		} catch(NoSuchContainerException $e) {
+		} catch(\NoSuchContainerException $e) {
 			return null;
 		}
 	}
 
 	/**
 	 * create container
-	 * @param string path
-	 * @return CF_Container
+	 * @param string $path
+	 * @return \CF_Container
 	 */
 	private function createContainer($path) {
 		if ($path=='' or $path=='/' or $path=='.') {
@@ -89,8 +93,8 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * get object by path
-	 * @param string path
-	 * @return CF_Object
+	 * @param string $path
+	 * @return \CF_Object
 	 */
 	private function getObject($path) {
 		if (isset($this->objects[$path])) {
@@ -107,7 +111,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 				$obj=$container->get_object(basename($path));
 				$this->objects[$path]=$obj;
 				return $obj;
-			} catch(NoSuchObjectException $e) {
+			} catch(\NoSuchObjectException $e) {
 				return null;
 			}
 		}
@@ -132,8 +136,8 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * create object
-	 * @param string path
-	 * @return CF_Object
+	 * @param string $path
+	 * @return \CF_Object
 	 */
 	private function createObject($path) {
 		$container=$this->getContainer(dirname($path));
@@ -154,7 +158,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * check if container for path exists
-	 * @param string path
+	 * @param string $path
 	 * @return bool
 	 */
 	private function containerExists($path) {
@@ -163,15 +167,15 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * get the list of emulated sub containers
-	 * @param CF_Container container
+	 * @param \CF_Container $container
 	 * @return array
 	 */
 	private function getSubContainers($container) {
-		$tmpFile=OCP\Files::tmpFile();
+		$tmpFile=\OCP\Files::tmpFile();
 		$obj=$this->getSubContainerFile($container);
 		try {
 			$obj->save_to_filename($tmpFile);
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return array();
 		}
 		$obj->save_to_filename($tmpFile);
@@ -185,15 +189,15 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * add an emulated sub container
-	 * @param CF_Container container
-	 * @param string name
+	 * @param \CF_Container $container
+	 * @param string $name
 	 * @return bool
 	 */
 	private function addSubContainer($container, $name) {
 		if ( ! $name) {
 			return false;
 		}
-		$tmpFile=OCP\Files::tmpFile();
+		$tmpFile=\OCP\Files::tmpFile();
 		$obj=$this->getSubContainerFile($container);
 		try {
 			$obj->save_to_filename($tmpFile);
@@ -201,16 +205,15 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 			foreach ($containers as &$sub) {
 				$sub=trim($sub);
 			}
-			if (array_search($name, $containers)!==false) {
+			if(array_search($name, $containers) !== false) {
 				unlink($tmpFile);
 				return false;
 			} else {
 				$fh=fopen($tmpFile, 'a');
-				fwrite($fh, $name."\n");
+				fwrite($fh,$name . "\n");
 			}
-		} catch(Exception $e) {
-			$containers=array();
-			file_put_contents($tmpFile, $name."\n");
+		} catch(\Exception $e) {
+			file_put_contents($tmpFile, $name . "\n");
 		}
 
 		$obj->load_from_filename($tmpFile);
@@ -220,20 +223,20 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * remove an emulated sub container
-	 * @param CF_Container container
-	 * @param string name
+	 * @param \CF_Container $container
+	 * @param string $name
 	 * @return bool
 	 */
 	private function removeSubContainer($container, $name) {
 		if ( ! $name) {
 			return false;
 		}
-		$tmpFile=OCP\Files::tmpFile();
+		$tmpFile=\OCP\Files::tmpFile();
 		$obj=$this->getSubContainerFile($container);
 		try {
 			$obj->save_to_filename($tmpFile);
 			$containers=file($tmpFile);
-		} catch (Exception $e) {
+		} catch (\Exception $e) {
 			return false;
 		}
 		foreach ($containers as &$sub) {
@@ -255,8 +258,8 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * ensure a subcontainer file exists and return it's object
-	 * @param CF_Container container
-	 * @return CF_Object
+	 * @param \CF_Container $container
+	 * @return \CF_Object
 	 */
 	private function getSubContainerFile($container) {
 		try {
@@ -283,10 +286,19 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 		if ( ! $this->root || $this->root[0]!='/') {
 			$this->root='/'.$this->root;
 		}
-		$this->auth = new CF_Authentication($this->user, $this->token, null, $this->host);
+
+	}
+
+	private function init(){
+		if($this->ready){
+			return;
+		}
+		$this->ready = true;
+
+		$this->auth = new \CF_Authentication($this->user, $this->token, null, $this->host);
 		$this->auth->authenticate();
 
-		$this->conn = new CF_Connection($this->auth);
+		$this->conn = new \CF_Connection($this->auth);
 
 		if ( ! $this->containerExists('/')) {
 			$this->rootContainer=$this->createContainer('/');
@@ -295,8 +307,13 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 		}
 	}
 
+	public function getId(){
+		return $this->id;
+	}
+
 
 	public function mkdir($path) {
+		$this->init();
 		if ($this->containerExists($path)) {
 			return false;
 		} else {
@@ -306,7 +323,8 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function rmdir($path) {
-		if ( ! $this->containerExists($path)) {
+		$this->init();
+		if (!$this->containerExists($path)) {
 			return false;
 		} else {
 			$this->emptyContainer($path);
@@ -343,6 +361,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function opendir($path) {
+		$this->init();
 		$container=$this->getContainer($path);
 		$files=$this->getObjects($container);
 		$i=array_search(self::SUBCONTAINER_FILE, $files);
@@ -352,11 +371,12 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 		$subContainers=$this->getSubContainers($container);
 		$files=array_merge($files, $subContainers);
 		$id=$this->getContainerName($path);
-		OC_FakeDirStream::$dirs[$id]=$files;
+		\OC\Files\Stream\Dir::register($id, $files);
 		return opendir('fakedir://'.$id);
 	}
 
 	public function filetype($path) {
+		$this->init();
 		if ($this->containerExists($path)) {
 			return 'dir';
 		} else {
@@ -373,6 +393,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function file_exists($path) {
+		$this->init();
 		if ($this->is_dir($path)) {
 			return true;
 		} else {
@@ -381,6 +402,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function file_get_contents($path) {
+		$this->init();
 		$obj=$this->getObject($path);
 		if (is_null($obj)) {
 			return false;
@@ -389,6 +411,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function file_put_contents($path, $content) {
+		$this->init();
 		$obj=$this->getObject($path);
 		if (is_null($obj)) {
 			$container=$this->getContainer(dirname($path));
@@ -402,6 +425,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function unlink($path) {
+		$this->init();
 		if ($this->containerExists($path)) {
 			return $this->rmdir($path);
 		}
@@ -415,6 +439,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function fopen($path, $mode) {
+		$this->init();
 		switch($mode) {
 			case 'r':
 			case 'rb':
@@ -440,7 +465,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 			case 'c':
 			case 'c+':
 				$tmpFile=$this->getTmpFile($path);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this, 'writeBack');
+				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
 				self::$tempFiles[$tmpFile]=$path;
 				return fopen('close://'.$tmpFile, $mode);
 		}
@@ -458,6 +483,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function touch($path, $mtime=null) {
+		$this->init();
 		$obj=$this->getObject($path);
 		if (is_null($obj)) {
 			return false;
@@ -472,6 +498,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function rename($path1, $path2) {
+		$this->init();
 		$sourceContainer=$this->getContainer(dirname($path1));
 		$targetContainer=$this->getContainer(dirname($path2));
 		$result=$sourceContainer->move_object_to(basename($path1), $targetContainer, basename($path2));
@@ -484,6 +511,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function copy($path1, $path2) {
+		$this->init();
 		$sourceContainer=$this->getContainer(dirname($path1));
 		$targetContainer=$this->getContainer(dirname($path2));
 		$result=$sourceContainer->copy_object_to(basename($path1), $targetContainer, basename($path2));
@@ -495,6 +523,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	public function stat($path) {
+		$this->init();
 		$container=$this->getContainer($path);
 		if ( ! is_null($container)) {
 			return array(
@@ -523,17 +552,19 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 	}
 
 	private function getTmpFile($path) {
+		$this->init();
 		$obj=$this->getObject($path);
 		if ( ! is_null($obj)) {
-			$tmpFile=OCP\Files::tmpFile();
+			$tmpFile=\OCP\Files::tmpFile();
 			$obj->save_to_filename($tmpFile);
 			return $tmpFile;
 		} else {
-			return OCP\Files::tmpFile();
+			return \OCP\Files::tmpFile();
 		}
 	}
 
 	private function fromTmpFile($tmpFile, $path) {
+		$this->init();
 		$obj=$this->getObject($path);
 		if (is_null($obj)) {
 			$obj=$this->createObject($path);
@@ -544,7 +575,7 @@ class OC_FileStorage_SWIFT extends OC_Filestorage_Common{
 
 	/**
 	 * remove custom mtime metadata
-	 * @param CF_Object obj
+	 * @param \CF_Object $obj
 	 */
 	private function resetMTime($obj) {
 		if (isset($obj->metadata['Mtime'])) {
diff --git a/apps/files_external/lib/webdav.php b/apps/files_external/lib/webdav.php
index 920aefc12de..2a953ac63f4 100644
--- a/apps/files_external/lib/webdav.php
+++ b/apps/files_external/lib/webdav.php
@@ -6,14 +6,17 @@
  * See the COPYING-README file.
  */
 
-class OC_FileStorage_DAV extends OC_Filestorage_Common{
+namespace OC\Files\Storage;
+
+class DAV extends \OC\Files\Storage\Common{
 	private $password;
 	private $user;
 	private $host;
 	private $secure;
 	private $root;
+	private $ready;
 	/**
-	 * @var Sabre_DAV_Client
+	 * @var \Sabre_DAV_Client
 	 */
 	private $client;
 
@@ -43,6 +46,13 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 		if (substr($this->root, -1, 1)!='/') {
 			$this->root.='/';
 		}
+	}
+
+	private function init(){
+		if($this->ready){
+			return;
+		}
+		$this->ready = true;
 
 		$settings = array(
 			'baseUri' => $this->createBaseUri(),
@@ -50,7 +60,7 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 			'password' => $this->password,
 		);
 
-		$this->client = new Sabre_DAV_Client($settings);
+		$this->client = new \Sabre_DAV_Client($settings);
 
 		$caview = \OCP\Files::getStorage('files_external');
 		if ($caview) {
@@ -63,6 +73,10 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 		$this->mkdir('');
 	}
 
+	public function getId(){
+		return 'webdav::' . $this->user . '@' . $this->host . '/' . $this->root;
+	}
+
 	private function createBaseUri() {
 		$baseUri='http';
 		if ($this->secure) {
@@ -73,40 +87,45 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 	}
 
 	public function mkdir($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		return $this->simpleResponse('MKCOL', $path, null, 201);
 	}
 
 	public function rmdir($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		return $this->simpleResponse('DELETE', $path, null, 204);
 	}
 
 	public function opendir($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->propfind($path, array(), 1);
 			$id=md5('webdav'.$this->root.$path);
-			OC_FakeDirStream::$dirs[$id]=array();
+			$content = array();
 			$files=array_keys($response);
 			array_shift($files);//the first entry is the current directory
 			foreach ($files as $file) {
 				$file = urldecode(basename($file));
-				OC_FakeDirStream::$dirs[$id][]=$file;
+				$content[]=$file;
 			}
+			\OC\Files\Stream\Dir::register($id, $content);
 			return opendir('fakedir://'.$id);
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return false;
 		}
 	}
 
 	public function filetype($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->propfind($path, array('{DAV:}resourcetype'));
 			$responseType=$response["{DAV:}resourcetype"]->resourceType;
 			return (count($responseType)>0 and $responseType[0]=="{DAV:}collection")?'dir':'file';
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			error_log($e->getMessage());
 			\OCP\Util::writeLog("webdav client", \OCP\Util::sanitizeHTML($e->getMessage()), \OCP\Util::ERROR);
 			return false;
@@ -122,20 +141,23 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 	}
 
 	public function file_exists($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$this->client->propfind($path, array('{DAV:}resourcetype'));
 			return true;//no 404 exception
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return false;
 		}
 	}
 
 	public function unlink($path) {
-		return $this->simpleResponse('DELETE', $path, null, 204);
+		$this->init();
+		return $this->simpleResponse('DELETE', $path, null ,204);
 	}
 
-	public function fopen($path, $mode) {
+	public function fopen($path,$mode) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		switch($mode) {
 			case 'r':
@@ -172,9 +194,9 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 				} else {
 					$ext='';
 				}
-				$tmpFile=OCP\Files::tmpFile($ext);
-				OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this, 'writeBack');
-				if ($this->file_exists($path)) {
+				$tmpFile = \OCP\Files::tmpFile($ext);
+				\OC\Files\Stream\Close::registerCallback($tmpFile, array($this, 'writeBack'));
+				if($this->file_exists($path)) {
 					$this->getFile($path, $tmpFile);
 				}
 				self::$tempFiles[$tmpFile]=$path;
@@ -190,6 +212,7 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 	}
 
 	public function free_space($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->propfind($path, array('{DAV:}quota-available-bytes'));
@@ -198,12 +221,13 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 			} else {
 				return 0;
 			}
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return 0;
 		}
 	}
 
 	public function touch($path, $mtime=null) {
+		$this->init();
 		if (is_null($mtime)) {
 			$mtime=time();
 		}
@@ -211,12 +235,14 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 		$this->client->proppatch($path, array('{DAV:}lastmodified' => $mtime));
 	}
 
-	public function getFile($path, $target) {
-		$source=$this->fopen($path, 'r');
-		file_put_contents($target, $source);
+	public function getFile($path,$target) {
+		$this->init();
+		$source=$this->fopen($path,'r');
+		file_put_contents($target,$source);
 	}
 
-	public function uploadFile($path, $target) {
+	public function uploadFile($path,$target) {
+		$this->init();
 		$source=fopen($path, 'r');
 
 		$curl = curl_init();
@@ -230,47 +256,46 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 		curl_close ($curl);
 	}
 
-	public function rename($path1, $path2) {
+	public function rename($path1,$path2) {
+		$this->init();
 		$path1=$this->cleanPath($path1);
 		$path2=$this->root.$this->cleanPath($path2);
 		try {
 			$this->client->request('MOVE', $path1, null, array('Destination'=>$path2));
 			return true;
-		} catch(Exception $e) {
-			echo $e;
-			echo 'fail';
+		} catch(\Exception $e) {
 			return false;
 		}
 	}
 
-	public function copy($path1, $path2) {
+	public function copy($path1,$path2) {
+		$this->init();
 		$path1=$this->cleanPath($path1);
 		$path2=$this->root.$this->cleanPath($path2);
 		try {
 			$this->client->request('COPY', $path1, null, array('Destination'=>$path2));
 			return true;
-		} catch(Exception $e) {
-			echo $e;
-			echo 'fail';
+		} catch(\Exception $e) {
 			return false;
 		}
 	}
 
 	public function stat($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->propfind($path, array('{DAV:}getlastmodified', '{DAV:}getcontentlength'));
 			return array(
 				'mtime'=>strtotime($response['{DAV:}getlastmodified']),
 				'size'=>(int)isset($response['{DAV:}getcontentlength']) ? $response['{DAV:}getcontentlength'] : 0,
-				'ctime'=>-1,
 			);
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return array();
 		}
 	}
 
 	public function getMimeType($path) {
+		$this->init();
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->propfind($path, array('{DAV:}getcontenttype', '{DAV:}resourcetype'));
@@ -283,7 +308,7 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 			} else {
 				return false;
 			}
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return false;
 		}
 	}
@@ -296,12 +321,12 @@ class OC_FileStorage_DAV extends OC_Filestorage_Common{
 		}
 	}
 
-	private function simpleResponse($method, $path, $body, $expected) {
+	private function simpleResponse($method,$path,$body,$expected) {
 		$path=$this->cleanPath($path);
 		try {
 			$response=$this->client->request($method, $path, $body);
 			return $response['statusCode']==$expected;
-		} catch(Exception $e) {
+		} catch(\Exception $e) {
 			return false;
 		}
 	}