diff --git a/apps/files_sharing/appinfo/app.php b/apps/files_sharing/appinfo/app.php
index 109f86b2e87..bfed4266ad4 100644
--- a/apps/files_sharing/appinfo/app.php
+++ b/apps/files_sharing/appinfo/app.php
@@ -3,6 +3,7 @@
 OC::$CLASSPATH['OC_Share_Backend_File'] = "apps/files_sharing/lib/share/file.php";
 OC::$CLASSPATH['OC_Share_Backend_Folder'] = 'apps/files_sharing/lib/share/folder.php';
 OC::$CLASSPATH['OC_Filestorage_Shared'] = "apps/files_sharing/lib/sharedstorage.php";
+OC::$CLASSPATH['OC_Files_Sharing_Util'] = "apps/files_sharing/lib/util.php";
 OCP\Util::connectHook('OC_Filesystem', 'setup', 'OC_Filestorage_Shared', 'setup');
 OCP\Share::registerBackend('file', 'OC_Share_Backend_File');
 OCP\Share::registerBackend('folder', 'OC_Share_Backend_Folder', 'file');
diff --git a/apps/files_sharing/lib/sharedstorage.php b/apps/files_sharing/lib/sharedstorage.php
index 6dba76955a0..d2489f9cbad 100644
--- a/apps/files_sharing/lib/sharedstorage.php
+++ b/apps/files_sharing/lib/sharedstorage.php
@@ -112,8 +112,14 @@ class OC_Filestorage_Shared extends OC_Filestorage_Common {
 		if ($path == '' || $path == '/' || !$this->isCreatable(dirname($path))) {
 			return false;
 		} else if ($source = $this->getSourcePath($path)) {
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$intPath = '/'.$parts[3];
 			$storage = OC_Filesystem::getStorage($source);
-			return $storage->mkdir($this->getInternalPath($source));
+			if( ($storage->mkdir($this->getInternalPath($source))) ) {
+				OC_FileCache::put($intPath ,array('user'=>$user), '/'.$user.'/files');
+				return true;
+			}
 		}
 		return false;
 	}
@@ -296,10 +302,15 @@ class OC_Filestorage_Shared extends OC_Filestorage_Common {
 					'target' => $this->sharedFolder.$path,
 					'source' => $source,
 				);
-			OCP\Util::emitHook('OC_Filestorage_Shared', 'file_put_contents', $info);
+			OCP\Util::emitHook('OC_Filestorage_Shared', 'file_put_contents', $info);
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$intPath = '/'.$parts[3];
 			$storage = OC_Filesystem::getStorage($source);
-			$result = $storage->file_put_contents($this->getInternalPath($source), $data);
-			return $result;
+			if( ( $result = $storage->file_put_contents($this->getInternalPath($source), $data) ) ) {
+				OC_FileCache::put($intPath ,array('user'=>$user), '/'.$user.'/files');
+				return $result;
+			}	
 		}
 		return false;
 	}
@@ -368,17 +379,18 @@ class OC_Filestorage_Shared extends OC_Filestorage_Common {
 
 	public function fopen($path, $mode) {
 		if ($source = $this->getSourcePath($path)) {
+			$write = false;
 			switch ($mode) {
+				case 'w':
+				case 'wb':
+				case 'w+':
+				case 'wb+': $write = true;
 				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':
@@ -394,6 +406,14 @@ class OC_Filestorage_Shared extends OC_Filestorage_Common {
 			);
 			OCP\Util::emitHook('OC_Filestorage_Shared', 'fopen', $info);
 			$storage = OC_Filesystem::getStorage($source);
+			
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$intPath = '/'.$parts[3];
+
+			if ( $write && $storage->touch($this->getInternalPath($source)) ) {
+				OC_FileCache::put($intPath ,array('user'=>$user), '/'.$user.'/files');
+			}
 			return $storage->fopen($this->getInternalPath($source), $mode);
 		}
 		return false;
diff --git a/apps/files_sharing/lib/util.php b/apps/files_sharing/lib/util.php
new file mode 100644
index 00000000000..2306408dc0e
--- /dev/null
+++ b/apps/files_sharing/lib/util.php
@@ -0,0 +1,79 @@
+<?php
+/**
+ * ownCloud
+ *
+ * @author Bjoern Schiessle
+ * @copyright 2012 Bjoern Schiessle schiessle@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/>.
+ *
+ */
+
+
+class OC_Files_Sharing_Util {
+
+	private static $files = array();
+
+	/**
+	 * @brief Get the source file path and the permissions granted for a shared file
+	 * @param string Shared target file path
+	 * @return Returns array with the keys path and permissions or false if not found
+	 */
+	private static function getFile($target) {
+		$target = '/'.$target;
+		$target = rtrim($target, '/');
+		if (isset(self::$files[$target])) {
+			return self::$files[$target];
+		} else {
+			$pos = strpos($target, '/', 1);
+			// Get shared folder name
+			if ($pos !== false) {
+				$folder = substr($target, 0, $pos);
+				if (isset(self::$files[$folder])) {
+					$file = self::$files[$folder];
+				} else {
+					$file = OCP\Share::getItemSharedWith('folder', $folder, OC_Share_Backend_File::FORMAT_SHARED_STORAGE);
+				}
+				if ($file) {
+					self::$files[$target]['path'] = $file['path'].substr($target, strlen($folder));
+					self::$files[$target]['permissions'] = $file['permissions'];
+					return self::$files[$target];
+				}
+			} else {
+				$file = OCP\Share::getItemSharedWith('file', $target, OC_Share_Backend_File::FORMAT_SHARED_STORAGE);
+				if ($file) {
+					self::$files[$target] = $file;
+					return self::$files[$target];
+				}
+			}
+			OCP\Util::writeLog('files_sharing', 'File source not found for: '.$target, OCP\Util::ERROR);
+			return false;
+		}
+	}
+
+	/**
+	 * @brief Get the source file path for a shared file
+	 * @param string Shared target file path
+	 * @return Returns source file path or false if not found
+	 */
+	public static function getSourcePath($target) {
+		$file = self::getFile($target);
+		if (isset($file['path'])) {
+			$uid = substr($file['path'], 1, strpos($file['path'], '/', 1) - 1);
+			OC_Filesystem::mount('OC_Filestorage_Local', array('datadir' => OC_User::getHome($uid)), $uid);
+			return $file['path'];
+		}
+		return false;
+	}
+}
\ No newline at end of file
diff --git a/lib/connector/sabre/directory.php b/lib/connector/sabre/directory.php
index 413efef73b7..56c17da1a6e 100644
--- a/lib/connector/sabre/directory.php
+++ b/lib/connector/sabre/directory.php
@@ -117,16 +117,20 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 	 */
 	public function getChildren() {
 
+		$source = $this->getFileSource($this->path);
+		$path = $source['path'];
+		$user = $source['user'];
+		
 		$folder_content = OC_Files::getDirectoryContent($this->path);
 		$paths = array();
 		foreach($folder_content as $info) {
-			$paths[] = $this->path.'/'.$info['name'];
+			$paths[] = $path.'/'.$info['name'];
 		}
 		$properties = array_fill_keys($paths, array());
 		if(count($paths)>0) {
 			$placeholders = join(',', array_fill(0, count($paths), '?'));
 			$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*properties` WHERE `userid` = ?' . ' AND `propertypath` IN ('.$placeholders.')' );
-			array_unshift($paths, OC_User::getUser()); // prepend userid
+			array_unshift($paths, $user); // prepend userid
 			$result = $query->execute( $paths );
 			while($row = $result->fetchRow()) {
 				$propertypath = $row['propertypath'];
@@ -139,7 +143,7 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 		$nodes = array();
 		foreach($folder_content as $info) {
 			$node = $this->getChild($info['name'], $info);
-			$node->setPropertyCache($properties[$this->path.'/'.$info['name']]);
+			$node->setPropertyCache($properties[$path.'/'.$info['name']]);
 			$nodes[] = $node;
 		}
 		return $nodes;
diff --git a/lib/connector/sabre/node.php b/lib/connector/sabre/node.php
index f87e9f9a0b1..6a2ad22fd5d 100644
--- a/lib/connector/sabre/node.php
+++ b/lib/connector/sabre/node.php
@@ -148,13 +148,16 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 * @return bool|array
 	 */
 	public function updateProperties($properties) {
+		// get source path of shared files
+		$source = self::getFileSource($this->path);
+
 		$existing = $this->getProperties(array());
 		foreach($properties as $propertyName => $propertyValue) {
 			// If it was null, we need to delete the property
 			if (is_null($propertyValue)) {
 				if(array_key_exists( $propertyName, $existing )) {
 					$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
-					$query->execute( array( OC_User::getUser(), $this->path, $propertyName ));
+					$query->execute( array( $source['user'], $source['path'], $propertyName ));
 				}
 			}
 			else {
@@ -163,10 +166,10 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 				} else {
 					if(!array_key_exists( $propertyName, $existing )) {
 						$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
-						$query->execute( array( OC_User::getUser(), $this->path, $propertyName,$propertyValue ));
+						$query->execute( array( $source['user'], $source['path'], $propertyName, $propertyValue ));
 					} else {
 						$query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertyvalue` = ? WHERE `userid` = ? AND `propertypath` = ? AND `propertyname` = ?' );
-						$query->execute( array( $propertyValue,OC_User::getUser(), $this->path, $propertyName ));
+						$query->execute( array( $propertyValue, $source['user'], $source['path'], $propertyName ));
 					}
 				}
 			}
@@ -188,16 +191,19 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 * @return array
 	 */
 	public function getProperties($properties) {
-		if (is_null($this->property_cache)) {
+		
+		$source = self::getFileSource($this->path);
+		
+		if (is_null($this->property_cache) || empty($this->property_cache)) {
 			$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*properties` WHERE `userid` = ? AND `propertypath` = ?' );
-			$result = $query->execute( array( OC_User::getUser(), $this->path ));
+			$result = $query->execute( array( $source['user'], $source['path'] ));
 
 			$this->property_cache = array();
 			while( $row = $result->fetchRow()) {
 				$this->property_cache[$row['propertyname']] = $row['propertyvalue'];
 			}
 		}
-
+		
 		// if the array was empty, we need to return everything
 		if(count($properties) == 0) {
 			return $this->property_cache;
@@ -234,9 +240,12 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 		if (empty($tag)) {
 			return null;
 		}
+		
+		$source = self::getFileSource($path);
+			
 		$etag = '"'.$tag.'"';
 		$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*properties` (`userid`,`propertypath`,`propertyname`,`propertyvalue`) VALUES(?,?,?,?)' );
-		$query->execute( array( OC_User::getUser(), $path, self::GETETAG_PROPERTYNAME, $etag ));
+		$query->execute( array( $source['user'], $source['path'], self::GETETAG_PROPERTYNAME, $etag ));
 		return $etag;
 	}
 
@@ -246,6 +255,9 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 	 */
 	static public function removeETagPropertyForPath($path) {
 		// remove tags from this and parent paths
+		$source = self::getFileSource($path);
+		$path = $source['path'];
+		
 		$paths = array();
 		while ($path != '/' && $path != '.' && $path != '' && $path != '\\') {
 			$paths[] = $path;
@@ -261,7 +273,26 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 			.' AND `propertyname` = ?'
 			.' AND `propertypath` IN ('.$path_placeholders.')'
 			);
-		$vals = array( OC_User::getUser(), self::GETETAG_PROPERTYNAME );
+		$vals = array( $source['user'], self::GETETAG_PROPERTYNAME );
 		$query->execute(array_merge( $vals, $paths ));
+		
+		//remove etag for all Shared folders
+		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*properties`'
+				.' WHERE `propertypath` = "/Shared"'
+		);
+		$query->execute(array());
+		
+	}
+	
+	protected static function getFileSource($path) {
+		if ( OC_App::isEnabled('files_sharing') &&  !strncmp($path, '/Shared/', 8)) {
+			$source = OC_Files_Sharing_Util::getSourcePath(str_replace('/Shared/', '', $path));
+			$parts = explode('/', $source, 4);
+			$user =  $parts[1];
+			$path = '/'.$parts[3];
+		} else {
+			$user = OC_User::getUser();
+		}
+		return(array('user' => $user, 'path' => $path));
 	}
 }
diff --git a/lib/filecache.php b/lib/filecache.php
index 9ce94c6f733..40d63021273 100644
--- a/lib/filecache.php
+++ b/lib/filecache.php
@@ -79,8 +79,8 @@ class OC_FileCache{
 
 		// add parent directory to the file cache if it does not exist yet.
 		if ($parent == -1 && $fullpath != $root) {
-			$parentDir = dirname($path);
-			self::scanFile($parentDir);
+			$parentDir = dirname(OC_Filesystem::normalizePath($path));
+			self::scanFile($parentDir, $root);
 			$parent = self::getParentId($fullpath);
 		}
 
@@ -94,15 +94,19 @@ class OC_FileCache{
 		if(!isset($data['versioned'])) {
 			$data['versioned']=false;
 		}
+		if(!isset($data['user'])) {
+			$data['user']=OC_User::getUser();
+		}
+		
+		
 		$mimePart=dirname($data['mimetype']);
 		$data['size']=(int)$data['size'];
 		$data['ctime']=(int)$data['mtime'];
 		$data['writable']=(int)$data['writable'];
 		$data['encrypted']=(int)$data['encrypted'];
 		$data['versioned']=(int)$data['versioned'];
-		$user=OC_User::getUser();
 		$query=OC_DB::prepare('INSERT INTO `*PREFIX*fscache`(`parent`, `name`, `path`, `path_hash`, `size`, `mtime`, `ctime`, `mimetype`, `mimepart`,`user`,`writable`,`encrypted`,`versioned`) VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?)');
-		$result=$query->execute(array($parent,basename($fullpath),$fullpath,md5($fullpath),$data['size'],$data['mtime'],$data['ctime'],$data['mimetype'],$mimePart,$user,$data['writable'],$data['encrypted'],$data['versioned']));
+		$result=$query->execute(array($parent,basename($fullpath),$fullpath,md5($fullpath),$data['size'],$data['mtime'],$data['ctime'],$data['mimetype'],$mimePart,$data['user'],$data['writable'],$data['encrypted'],$data['versioned']));
 		if(OC_DB::isError($result)) {
 			OC_Log::write('files','error while writing file('.$fullpath.') to cache',OC_Log::ERROR);
 		}