Merge branch 'master' into share_expiration

Conflicts:
	core/js/share.js
	lib/util.php

122 files changed, 3372 insertions, 2897 deletions

diff --git a/lib/MDB2/Driver/Datatype/sqlite3.php b/lib/MDB2/Driver/Datatype/sqlite3.php
index d74badbe4f1..ca4c1cbceb8 100644
--- a/lib/MDB2/Driver/Datatype/sqlite3.php
+++ b/lib/MDB2/Driver/Datatype/sqlite3.php
@@ -20,7 +20,7 @@
  *
  */
 
-require_once('MDB2/Driver/Datatype/Common.php');
+require_once 'MDB2/Driver/Datatype/Common.php';
 
 /**
  * MDB2 SQLite driver
@@ -191,7 +191,7 @@ class MDB2_Driver_Datatype_sqlite3 extends MDB2_Driver_Datatype_Common
         $notnull = empty($field['notnull']) ? '' : ' NOT NULL';
         $unsigned = empty($field['unsigned']) ? '' : ' UNSIGNED';
         $name = $db->quoteIdentifier($name, true);
-        if($autoinc){
+        if($autoinc) {
 			return $name.' '.$this->getTypeDeclaration($field).$autoinc;
         }else{
 			return $name.' '.$this->getTypeDeclaration($field).$unsigned.$default.$notnull.$autoinc;
@@ -383,5 +383,3 @@ class MDB2_Driver_Datatype_sqlite3 extends MDB2_Driver_Datatype_Common
 
     // }}}
 }
-
-?>
\ No newline at end of file
diff --git a/lib/MDB2/Driver/Function/sqlite3.php b/lib/MDB2/Driver/Function/sqlite3.php
index 790bd0e747b..235a106e183 100644
--- a/lib/MDB2/Driver/Function/sqlite3.php
+++ b/lib/MDB2/Driver/Function/sqlite3.php
@@ -20,7 +20,7 @@
  *
  */
 
-require_once('MDB2/Driver/Function/Common.php');
+require_once 'MDB2/Driver/Function/Common.php';
 
 /**
  * MDB2 SQLite driver for the function modules
diff --git a/lib/MDB2/Driver/Manager/sqlite3.php b/lib/MDB2/Driver/Manager/sqlite3.php
index 10255a3619a..921153c17dd 100644
--- a/lib/MDB2/Driver/Manager/sqlite3.php
+++ b/lib/MDB2/Driver/Manager/sqlite3.php
@@ -20,7 +20,7 @@
  *
  */
 
-require_once('MDB2/Driver/Manager/Common.php');
+require_once 'MDB2/Driver/Manager/Common.php';
 
 /**
  * MDB2 SQLite driver for the management modules
@@ -531,7 +531,7 @@ class MDB2_Driver_Manager_sqlite3 extends MDB2_Driver_Manager_Common
             return MDB2_OK;
         }
 
-        if (empty($changes['remove']) and empty($changes['rename']) and empty($changes['change']) ){//if only rename or add changes are required, we can use ALTER TABLE
+        if (empty($changes['remove']) and empty($changes['rename']) and empty($changes['change']) ) {//if only rename or add changes are required, we can use ALTER TABLE
 			$query = '';
 			if (!empty($changes['name'])) {
 				$change_name = $db->quoteIdentifier($changes['name'], true);
diff --git a/lib/MDB2/Driver/Native/sqlite3.php b/lib/MDB2/Driver/Native/sqlite3.php
index de650107238..344d523bdf3 100644
--- a/lib/MDB2/Driver/Native/sqlite3.php
+++ b/lib/MDB2/Driver/Native/sqlite3.php
@@ -31,4 +31,3 @@ require_once 'MDB2/Driver/Native/Common.php';
 class MDB2_Driver_Native_sqlite extends MDB2_Driver_Native_Common
 {
 }
-?>
\ No newline at end of file
diff --git a/lib/MDB2/Driver/Reverse/sqlite3.php b/lib/MDB2/Driver/Reverse/sqlite3.php
index 33e5b590268..36626478ce8 100644
--- a/lib/MDB2/Driver/Reverse/sqlite3.php
+++ b/lib/MDB2/Driver/Reverse/sqlite3.php
@@ -20,7 +20,7 @@
  *
  */
 
-require_once('MDB2/Driver/Reverse/Common.php');
+require_once 'MDB2/Driver/Reverse/Common.php';
 
 /**
  * MDB2 SQlite driver for the schema reverse engineering module
@@ -584,5 +584,3 @@ class MDB2_Driver_Reverse_sqlite3 extends MDB2_Driver_Reverse_Common
            'This DBMS can not obtain tableInfo from result sets', __FUNCTION__);
     }
 }
-
-?>
\ No newline at end of file
diff --git a/lib/MDB2/Driver/sqlite3.php b/lib/MDB2/Driver/sqlite3.php
index 6bfccadad9a..9757e4faf94 100644
--- a/lib/MDB2/Driver/sqlite3.php
+++ b/lib/MDB2/Driver/sqlite3.php
@@ -150,7 +150,7 @@ class MDB2_Driver_sqlite3 extends MDB2_Driver_Common
      */
     public function escape($text, $escape_wildcards = false)
     {
-		if($this->connection){
+		if($this->connection) {
 			return $this->connection->escapeString($text);
 		}else{
 			return str_replace("'","''",$text);//TODO; more
@@ -324,7 +324,7 @@ class MDB2_Driver_sqlite3 extends MDB2_Driver_Common
      **/
     function connect()
     {
-		if($this->connection instanceof SQLite3){
+		if($this->connection instanceof SQLite3) {
 			return MDB2_OK;
 		}
 		$datadir=OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
@@ -351,7 +351,7 @@ class MDB2_Driver_sqlite3 extends MDB2_Driver_Common
         }
 
         if ($database_file !== ':memory:') {
-			if(!strpos($database_file,'.db')){
+			if(!strpos($database_file,'.db')) {
 				$database_file="$datadir/$database_file.db";
 			}
             if (!file_exists($database_file)) {
@@ -387,7 +387,7 @@ class MDB2_Driver_sqlite3 extends MDB2_Driver_Common
 
         $php_errormsg = '';
 		$this->connection = new SQLite3($database_file);
-		if(is_callable(array($this->connection,'busyTimeout'))){//busy timout is only available in php>=5.3
+		if(is_callable(array($this->connection,'busyTimeout'))) {//busy timout is only available in php>=5.3
 			$this->connection->busyTimeout(100);
 		}
         $this->_lasterror = $this->connection->lastErrorMsg();
@@ -1055,7 +1055,7 @@ class MDB2_BufferedResult_sqlite3 extends MDB2_Result_sqlite3
     function seek($rownum = 0)
     {
 		$this->result->reset();
-		for($i=0;$i<$rownum;$i++){
+		for($i=0;$i<$rownum;$i++) {
 			$this->result->fetchArray();
 		}
         $this->rownum = $rownum - 1;
@@ -1093,7 +1093,7 @@ class MDB2_BufferedResult_sqlite3 extends MDB2_Result_sqlite3
     {
         $rows = 0;
         $this->result->reset();
-        while($this->result->fetchArray()){
+        while($this->result->fetchArray()) {
 			$rows++;
         }
         $this->result->reset();
@@ -1113,8 +1113,8 @@ class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
 	// }}}
     // {{{ function bindValue($parameter, &$value, $type = null)
 
-	private function getParamType($type){
-		switch(strtolower($type)){
+	private function getParamType($type) {
+		switch(strtolower($type)) {
 			case 'text':
 				return SQLITE3_TEXT;
 			case 'boolean':
@@ -1139,8 +1139,8 @@ class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
      *
      * @access  public
      */
-    function bindValue($parameter, $value, $type = null){
-		if($type){
+    function bindValue($parameter, $value, $type = null) {
+		if($type) {
 			$type=$this->getParamType($type);
 			$this->statement->bindValue($parameter,$value,$type);
 		}else{
@@ -1162,8 +1162,8 @@ class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
      *
      * @access  public
      */
-    function bindParam($parameter, &$value, $type = null){
-        if($type){
+    function bindParam($parameter, &$value, $type = null) {
+        if($type) {
 			$type=$this->getParamType($type);
 			$this->statement->bindParam($parameter,$value,$type);
 		}else{
@@ -1193,7 +1193,7 @@ class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
      *               a MDB2 error on failure
      * @access private
      */
-    function _execute($result_class = true, $result_wrap_class = false){
+    function _execute($result_class = true, $result_wrap_class = false) {
 		if (is_null($this->statement)) {
             $result =& parent::_execute($result_class, $result_wrap_class);
             return $result;
@@ -1313,7 +1313,7 @@ class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
         }
         $values = (array)$values;
         if (!empty($values)) {
-			if(count($this->types)){
+			if(count($this->types)) {
 				$types=$this->types;
 			}else{
 				$types=null;
diff --git a/lib/app.php b/lib/app.php
index 74315903467..28f1f16ebaf 100755
--- a/lib/app.php
+++ b/lib/app.php
@@ -48,30 +48,27 @@ class OC_App{
 	 *
 	 * if $types is set, only apps of those types will be loaded
 	 */
-	public static function loadApps($types=null){
+	public static function loadApps($types=null) {
 		// Load the enabled apps here
 		$apps = self::getEnabledApps();
 		// prevent app.php from printing output
 		ob_start();
-		foreach( $apps as $app ){
-			if((is_null($types) or self::isType($app,$types)) && !in_array($app, self::$loadedApps)){
+		foreach( $apps as $app ) {
+			if((is_null($types) or self::isType($app, $types)) && !in_array($app, self::$loadedApps)) {
 				self::loadApp($app);
 				self::$loadedApps[] = $app;
 			}
 		}
 		ob_end_clean();
 
-		if (!defined('DEBUG') || !DEBUG){
-			if (is_null($types)) {
+		if (!defined('DEBUG') || !DEBUG) {
+			if (is_null($types)
+			    && empty(OC_Util::$core_scripts) 
+			    && empty(OC_Util::$core_styles)) {
 				OC_Util::$core_scripts = OC_Util::$scripts;
 				OC_Util::$scripts = array();
 				OC_Util::$core_styles = OC_Util::$styles;
 				OC_Util::$styles = array();
-
-				if (!OC_AppConfig::getValue('core', 'remote_core.css', false)) {
-					OC_AppConfig::setValue('core', 'remote_core.css', '/core/minimizer.php');
-					OC_AppConfig::setValue('core', 'remote_core.js', '/core/minimizer.php');
-				}
 			}
 		}
 		// return
@@ -82,10 +79,10 @@ class OC_App{
 	 * load a single app
 	 * @param string app
 	 */
-	public static function loadApp($app){
-		if(is_file(self::getAppPath($app).'/appinfo/app.php')){
+	public static function loadApp($app) {
+		if(is_file(self::getAppPath($app).'/appinfo/app.php')) {
 			self::checkUpgrade($app);
-			require_once( $app.'/appinfo/app.php' );
+			require_once $app.'/appinfo/app.php';
 		}
 	}
 
@@ -94,13 +91,13 @@ class OC_App{
 	 * @param string $app
 	 * @param string/array $types
 	 */
-	public static function isType($app,$types){
-		if(is_string($types)){
+	public static function isType($app,$types) {
+		if(is_string($types)) {
 			$types=array($types);
 		}
 		$appTypes=self::getAppTypes($app);
-		foreach($types as $type){
-			if(array_search($type,$appTypes)!==false){
+		foreach($types as $type) {
+			if(array_search($type, $appTypes)!==false) {
 				return true;
 			}
 		}
@@ -112,14 +109,14 @@ class OC_App{
 	 * @param string $app
 	 * @return array
 	 */
-	private static function getAppTypes($app){
+	private static function getAppTypes($app) {
 		//load the cache
-		if(count(self::$appTypes)==0){
-			self::$appTypes=OC_Appconfig::getValues(false,'types');
+		if(count(self::$appTypes)==0) {
+			self::$appTypes=OC_Appconfig::getValues(false, 'types');
 		}
 
-		if(isset(self::$appTypes[$app])){
-			return explode(',',self::$appTypes[$app]);
+		if(isset(self::$appTypes[$app])) {
+			return explode(',', self::$appTypes[$app]);
 		}else{
 			return array();
 		}
@@ -128,29 +125,29 @@ class OC_App{
 	/**
 	 * read app types from info.xml and cache them in the database
 	 */
-	public static function setAppTypes($app){
+	public static function setAppTypes($app) {
 		$appData=self::getAppInfo($app);
 
-		if(isset($appData['types'])){
-			$appTypes=implode(',',$appData['types']);
+		if(isset($appData['types'])) {
+			$appTypes=implode(',', $appData['types']);
 		}else{
 			$appTypes='';
 		}
 
-		OC_Appconfig::setValue($app,'types',$appTypes);
+		OC_Appconfig::setValue($app, 'types', $appTypes);
 	}
 
 	/**
 	 * get all enabled apps
 	 */
-	public static function getEnabledApps(){
+	public static function getEnabledApps() {
 		if(!OC_Config::getValue('installed', false))
 			return array();
 		$apps=array('files');
 		$query = OC_DB::prepare( 'SELECT `appid` FROM `*PREFIX*appconfig` WHERE `configkey` = \'enabled\' AND `configvalue`=\'yes\'' );
 		$result=$query->execute();
-		while($row=$result->fetchRow()){
-			if(array_search($row['appid'],$apps)===false){
+		while($row=$result->fetchRow()) {
+			if(array_search($row['appid'], $apps)===false) {
 				$apps[]=$row['appid'];
 			}
 		}
@@ -164,8 +161,8 @@ class OC_App{
 	 *
 	 * This function checks whether or not an app is enabled.
 	 */
-	public static function isEnabled( $app ){
-		if( 'files'==$app or 'yes' == OC_Appconfig::getValue( $app, 'enabled' )){
+	public static function isEnabled( $app ) {
+		if( 'files'==$app or 'yes' == OC_Appconfig::getValue( $app, 'enabled' )) {
 			return true;
 		}
 
@@ -179,24 +176,24 @@ class OC_App{
 	 *
 	 * This function set an app as enabled in appconfig.
 	 */
-	public static function enable( $app ){
-		if(!OC_Installer::isInstalled($app)){
+	public static function enable( $app ) {
+		if(!OC_Installer::isInstalled($app)) {
 			// check if app is a shipped app or not. OCS apps have an integer as id, shipped apps use a string
-			if(!is_numeric($app)){
+			if(!is_numeric($app)) {
 				$app = OC_Installer::installShippedApp($app);
 			}else{
-				$download=OC_OCSClient::getApplicationDownload($app,1);
+				$download=OC_OCSClient::getApplicationDownload($app, 1);
 				if(isset($download['downloadlink']) and $download['downloadlink']!='') {
 					$app=OC_Installer::installApp(array('source'=>'http','href'=>$download['downloadlink']));
 				}
 			}
 		}
-		if($app!==false){
+		if($app!==false) {
 			// check if the app is compatible with this version of ownCloud
 			$info=OC_App::getAppInfo($app);
 			$version=OC_Util::getVersion();
-			if(!isset($info['require']) or ($version[0]>$info['require'])){
-				OC_Log::write('core','App "'.$info['name'].'" can\'t be installed because it is not compatible with this version of ownCloud',OC_Log::ERROR);
+			if(!isset($info['require']) or ($version[0]>$info['require'])) {
+				OC_Log::write('core', 'App "'.$info['name'].'" can\'t be installed because it is not compatible with this version of ownCloud', OC_Log::ERROR);
 				return false;
 			}else{
 				OC_Appconfig::setValue( $app, 'enabled', 'yes' );
@@ -215,7 +212,7 @@ class OC_App{
 	 *
 	 * This function set an app as disabled in appconfig.
 	 */
-	public static function disable( $app ){
+	public static function disable( $app ) {
 		// check if app is a shiped app or not. if not delete
 		OC_Appconfig::setValue( $app, 'enabled', 'no' );
 	}
@@ -237,9 +234,9 @@ class OC_App{
 	 *   - order: integer, that influences the position of your application in
 	 *     the navigation. Lower values come first.
 	 */
-	public static function addNavigationEntry( $data ){
+	public static function addNavigationEntry( $data ) {
 		$data['active']=false;
-		if(!isset($data['icon'])){
+		if(!isset($data['icon'])) {
 			$data['icon']='';
 		}
 		OC_App::$navigation[] = $data;
@@ -255,7 +252,7 @@ class OC_App{
 	 * property from all other entries. The templates can use this for
 	 * highlighting the current position of the user.
 	 */
-	public static function setActiveNavigationEntry( $id ){
+	public static function setActiveNavigationEntry( $id ) {
 		self::$activeapp = $id;
 		return true;
 	}
@@ -267,7 +264,7 @@ class OC_App{
 	 * This function returns the id of the active navigation entry (set by
 	 * setActiveNavigationEntry
 	 */
-	public static function getActiveNavigationEntry(){
+	public static function getActiveNavigationEntry() {
 		return self::$activeapp;
 	}
 
@@ -278,15 +275,15 @@ class OC_App{
 	 * This function returns an array containing all settings pages added. The
 	 * entries are sorted by the key 'order' ascending.
 	 */
-	public static function getSettingsNavigation(){
-		$l=OC_L10N::get('core');
+	public static function getSettingsNavigation() {
+		$l=OC_L10N::get('lib');
 
 		$settings = array();
 		// by default, settings only contain the help menu
-		if(OC_Config::getValue('knowledgebaseenabled', true)==true){
+		if(OC_Config::getValue('knowledgebaseenabled', true)==true) {
 			$settings = array(
 				array( "id" => "help", "order" => 1000, "href" => OC_Helper::linkTo( "settings", "help.php" ), "name" => $l->t("Help"), "icon" => OC_Helper::imagePath( "settings", "help.svg" ))
- 			);
+			);
 		}
 
 		// if the user is logged-in
@@ -300,7 +297,7 @@ class OC_App{
 				$settings[]=array( "id" => "settings", "order" => 1000, "href" => OC_Helper::linkTo( "settings", "settings.php" ), "name" => $l->t("Settings"), "icon" => OC_Helper::imagePath( "settings", "settings.svg" ));
 
 			//SubAdmins are also allowed to access user management
-			if(OC_SubAdmin::isSubAdmin($_SESSION["user_id"]) || OC_Group::inGroup( $_SESSION["user_id"], "admin" )){
+			if(OC_SubAdmin::isSubAdmin($_SESSION["user_id"]) || OC_Group::inGroup( $_SESSION["user_id"], "admin" )) {
 				// admin users menu
 				$settings[] = array( "id" => "core_users", "order" => 2, "href" => OC_Helper::linkTo( "settings", "users.php" ), "name" => $l->t("Users"), "icon" => OC_Helper::imagePath( "settings", "users.svg" ));
 			}
@@ -313,17 +310,17 @@ class OC_App{
 
 				$settings[]=array( "id" => "admin", "order" => 1000, "href" => OC_Helper::linkTo( "settings", "admin.php" ), "name" => $l->t("Admin"), "icon" => OC_Helper::imagePath( "settings", "admin.svg" ));
 			}
- 		}
+		}
 
 		$navigation = self::proceedNavigation($settings);
 		return $navigation;
 	}
 
 	/// This is private as well. It simply works, so don't ask for more details
-	private static function proceedNavigation( $list ){
-		foreach( $list as &$naventry ){
+	private static function proceedNavigation( $list ) {
+		foreach( $list as &$naventry ) {
 			$naventry['subnavigation'] = array();
-			if( $naventry['id'] == self::$activeapp ){
+			if( $naventry['id'] == self::$activeapp ) {
 				$naventry['active'] = true;
 			}
 			else{
@@ -331,7 +328,7 @@ class OC_App{
 			}
 		} unset( $naventry );
 
-		usort( $list, create_function( '$a, $b', 'if( $a["order"] == $b["order"] ){return 0;}elseif( $a["order"] < $b["order"] ){return -1;}else{return 1;}' ));
+		usort( $list, create_function( '$a, $b', 'if( $a["order"] == $b["order"] ) {return 0;}elseif( $a["order"] < $b["order"] ) {return -1;}else{return 1;}' ));
 
 		return $list;
 	}
@@ -349,7 +346,7 @@ class OC_App{
 				return $dir['path'];
 		}
 
-		OC_Log::write('core','No application directories are marked as writable.',OC_Log::ERROR);
+		OC_Log::write('core', 'No application directories are marked as writable.', OC_Log::ERROR);
 		return null;
 	}
 
@@ -388,10 +385,10 @@ class OC_App{
 	/**
 	 * get the last version of the app, either from appinfo/version or from appinfo/info.xml
 	 */
-	public static function getAppVersion($appid){
+	public static function getAppVersion($appid) {
 		$file= self::getAppPath($appid).'/appinfo/version';
 		$version=@file_get_contents($file);
-		if($version){
+		if($version) {
 			return trim($version);
 		}else{
 			$appData=self::getAppInfo($appid);
@@ -405,38 +402,41 @@ class OC_App{
 	 * @param boolean path (optional)
 	 * @returns array
 	*/
-	public static function getAppInfo($appid,$path=false){
-		if($path){
+	public static function getAppInfo($appid,$path=false) {
+		if($path) {
 			$file=$appid;
 		}else{
-			if(isset(self::$appInfo[$appid])){
+			if(isset(self::$appInfo[$appid])) {
 				return self::$appInfo[$appid];
 			}
 			$file= self::getAppPath($appid).'/appinfo/info.xml';
 		}
 		$data=array();
 		$content=@file_get_contents($file);
-		if(!$content){
+		if(!$content) {
 			return;
 		}
 		$xml = new SimpleXMLElement($content);
 		$data['info']=array();
 		$data['remote']=array();
 		$data['public']=array();
-		foreach($xml->children() as $child){
-			if($child->getName()=='remote'){
-				foreach($child->children() as $remote){
+		foreach($xml->children() as $child) {
+			if($child->getName()=='remote') {
+				foreach($child->children() as $remote) {
 					$data['remote'][$remote->getName()]=(string)$remote;
 				}
-			}elseif($child->getName()=='public'){
-				foreach($child->children() as $public){
+			}elseif($child->getName()=='public') {
+				foreach($child->children() as $public) {
 					$data['public'][$public->getName()]=(string)$public;
 				}
-			}elseif($child->getName()=='types'){
+			}elseif($child->getName()=='types') {
 				$data['types']=array();
-				foreach($child->children() as $type){
+				foreach($child->children() as $type) {
 					$data['types'][]=$type->getName();
 				}
+			}elseif($child->getName()=='description') {
+				$xml=(string)$child->asXML();
+				$data[$child->getName()]=substr($xml, 13, -14);//script <description> tags
 			}else{
 				$data[$child->getName()]=(string)$child;
 			}
@@ -456,7 +456,7 @@ class OC_App{
 	 *   - children: array that is empty if the key 'active' is false or
 	 *     contains the subentries if the key 'active' is true
 	 */
-	public static function getNavigation(){
+	public static function getNavigation() {
 		$navigation = self::proceedNavigation( self::$navigation );
 		return $navigation;
 	}
@@ -465,12 +465,12 @@ class OC_App{
 	 * get the id of loaded app
 	 * @return string
 	 */
-	public static function getCurrentApp(){
-		$script=substr($_SERVER["SCRIPT_NAME"],strlen(OC::$WEBROOT)+1);
-		$topFolder=substr($script,0,strpos($script,'/'));
-		if($topFolder=='apps'){
+	public static function getCurrentApp() {
+		$script=substr($_SERVER["SCRIPT_NAME"], strlen(OC::$WEBROOT)+1);
+		$topFolder=substr($script, 0, strpos($script, '/'));
+		if($topFolder=='apps') {
 			$length=strlen($topFolder);
-			return substr($script,$length+1,strpos($script,'/',$length+1)-$length-1);
+			return substr($script, $length+1, strpos($script, '/', $length+1)-$length-1);
 		}else{
 			return $topFolder;
 		}
@@ -480,9 +480,9 @@ class OC_App{
 	/**
 	 * get the forms for either settings, admin or personal
 	 */
-	public static function getForms($type){
+	public static function getForms($type) {
 		$forms=array();
-		switch($type){
+		switch($type) {
 			case 'settings':
 				$source=self::$settingsForms;
 				break;
@@ -493,7 +493,7 @@ class OC_App{
 				$source=self::$personalForms;
 				break;
 		}
-		foreach($source as $form){
+		foreach($source as $form) {
 			$forms[]=include $form;
 		}
 		return $forms;
@@ -502,33 +502,33 @@ class OC_App{
 	/**
 	 * register a settings form to be shown
 	 */
-	public static function registerSettings($app,$page){
+	public static function registerSettings($app,$page) {
 		self::$settingsForms[]= $app.'/'.$page.'.php';
 	}
 
 	/**
 	 * register an admin form to be shown
 	 */
-	public static function registerAdmin($app,$page){
+	public static function registerAdmin($app,$page) {
 		self::$adminForms[]= $app.'/'.$page.'.php';
 	}
 
 	/**
 	 * register a personal form to be shown
 	 */
-	public static function registerPersonal($app,$page){
+	public static function registerPersonal($app,$page) {
 		self::$personalForms[]= $app.'/'.$page.'.php';
 	}
 
 	/**
 	 * get a list of all apps in the apps folder
 	 */
-	public static function getAllApps(){
+	public static function getAllApps() {
 		$apps=array();
 		foreach(OC::$APPSROOTS as $apps_dir) {
 			$dh=opendir($apps_dir['path']);
-			while($file=readdir($dh)){
-				if($file[0]!='.' and is_file($apps_dir['path'].'/'.$file.'/appinfo/app.php')){
+			while($file=readdir($dh)) {
+				if($file[0]!='.' and is_file($apps_dir['path'].'/'.$file.'/appinfo/app.php')) {
 					$apps[]=$file;
 				}
 			}
@@ -549,7 +549,7 @@ class OC_App{
 		if ($currentVersion) {
 			$installedVersion = $versions[$app];
 			if (version_compare($currentVersion, $installedVersion, '>')) {
-				OC_Log::write($app, 'starting app upgrade from '.$installedVersion.' to '.$currentVersion,OC_Log::DEBUG);
+				OC_Log::write($app, 'starting app upgrade from '.$installedVersion.' to '.$currentVersion, OC_Log::DEBUG);
 				OC_App::updateApp($app);
 				OC_Appconfig::setValue($app, 'installed_version', OC_App::getAppVersion($app));
 			}
@@ -562,7 +562,7 @@ class OC_App{
 	 * This is important if you upgrade ownCloud and have non ported 3rd
 	 * party apps installed.
 	 */
-	public static function checkAppsRequirements($apps = array()){
+	public static function checkAppsRequirements($apps = array()) {
 		if (empty($apps)) {
 			$apps = OC_App::getEnabledApps();
 		}
@@ -570,8 +570,8 @@ class OC_App{
 		foreach($apps as $app) {
 			// check if the app is compatible with this version of ownCloud
 			$info = OC_App::getAppInfo($app);
-			if(!isset($info['require']) or ($version[0]>$info['require'])){
-				OC_Log::write('core','App "'.$info['name'].'" can\'t be used because it is not compatible with this version of ownCloud',OC_Log::ERROR);
+			if(!isset($info['require']) or ($version[0]>$info['require'])) {
+				OC_Log::write('core', 'App "'.$info['name'].'" ('.$app.') can\'t be used because it is not compatible with this version of ownCloud', OC_Log::ERROR);
 				OC_App::disable( $app );
 			}
 		}
@@ -580,7 +580,7 @@ class OC_App{
 	/**
 	 * get the installed version of all apps
 	 */
-	public static function getAppVersions(){
+	public static function getAppVersions() {
 		static $versions;
 		if (isset($versions)) {   // simple cache, needs to be fixed
 			return $versions; // when function is used besides in checkUpgrade
@@ -588,7 +588,7 @@ class OC_App{
 		$versions=array();
 		$query = OC_DB::prepare( 'SELECT `appid`, `configvalue` FROM `*PREFIX*appconfig` WHERE `configkey` = \'installed_version\'' );
 		$result = $query->execute();
-		while($row = $result->fetchRow()){
+		while($row = $result->fetchRow()) {
 			$versions[$row['appid']]=$row['configvalue'];
 		}
 		return $versions;
@@ -598,24 +598,24 @@ class OC_App{
 	 * update the database for the app and call the update script
 	 * @param string appid
 	 */
-	public static function updateApp($appid){
-		if(file_exists(self::getAppPath($appid).'/appinfo/database.xml')){
+	public static function updateApp($appid) {
+		if(file_exists(self::getAppPath($appid).'/appinfo/database.xml')) {
 			OC_DB::updateDbFromStructure(self::getAppPath($appid).'/appinfo/database.xml');
 		}
-		if(!self::isEnabled($appid)){
+		if(!self::isEnabled($appid)) {
 			return;
 		}
-		if(file_exists(self::getAppPath($appid).'/appinfo/update.php')){
+		if(file_exists(self::getAppPath($appid).'/appinfo/update.php')) {
 			self::loadApp($appid);
 			include self::getAppPath($appid).'/appinfo/update.php';
 		}
 
 		//set remote/public handelers
 		$appData=self::getAppInfo($appid);
-		foreach($appData['remote'] as $name=>$path){
+		foreach($appData['remote'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'remote_'.$name, $appid.'/'.$path);
 		}
-		foreach($appData['public'] as $name=>$path){
+		foreach($appData['public'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'public_'.$name, $appid.'/'.$path);
 		}
 
@@ -626,20 +626,20 @@ class OC_App{
 	 * @param string appid
 	 * @return OC_FilesystemView
 	 */
-	public static function getStorage($appid){
-		if(OC_App::isEnabled($appid)){//sanity check
-			if(OC_User::isLoggedIn()){
+	public static function getStorage($appid) {
+		if(OC_App::isEnabled($appid)) {//sanity check
+			if(OC_User::isLoggedIn()) {
 				$view = new OC_FilesystemView('/'.OC_User::getUser());
 				if(!$view->file_exists($appid)) {
 					$view->mkdir($appid);
 				}
 				return new OC_FilesystemView('/'.OC_User::getUser().'/'.$appid);
 			}else{
-				OC_Log::write('core','Can\'t get app storage, app, user not logged in',OC_Log::ERROR);
+				OC_Log::write('core', 'Can\'t get app storage, app, user not logged in', OC_Log::ERROR);
 				return false;
 			}
 		}else{
-			OC_Log::write('core','Can\'t get app storage, app '.$appid.' not enabled',OC_Log::ERROR);
+			OC_Log::write('core', 'Can\'t get app storage, app '.$appid.' not enabled', OC_Log::ERROR);
 			false;
 		}
 	}
diff --git a/lib/appconfig.php b/lib/appconfig.php
index 372cded9a5f..7f58b878504 100644
--- a/lib/appconfig.php
+++ b/lib/appconfig.php
@@ -45,13 +45,13 @@ class OC_Appconfig{
 	 * This function returns a list of all apps that have at least one
 	 * entry in the appconfig table.
 	 */
-	public static function getApps(){
+	public static function getApps() {
 		// No magic in here!
 		$query = OC_DB::prepare( 'SELECT DISTINCT `appid` FROM `*PREFIX*appconfig`' );
 		$result = $query->execute();
 
 		$apps = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$apps[] = $row["appid"];
 		}
 
@@ -66,13 +66,13 @@ class OC_Appconfig{
 	 * This function gets all keys of an app. Please note that the values are
 	 * not returned.
 	 */
-	public static function getKeys( $app ){
+	public static function getKeys( $app ) {
 		// No magic in here as well
 		$query = OC_DB::prepare( 'SELECT `configkey` FROM `*PREFIX*appconfig` WHERE `appid` = ?' );
 		$result = $query->execute( array( $app ));
 
 		$keys = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$keys[] = $row["configkey"];
 		}
 
@@ -89,29 +89,29 @@ class OC_Appconfig{
 	 * This function gets a value from the appconfig table. If the key does
 	 * not exist the default value will be returnes
 	 */
-	public static function getValue( $app, $key, $default = null ){
+	public static function getValue( $app, $key, $default = null ) {
 		// At least some magic in here :-)
 		$query = OC_DB::prepare( 'SELECT `configvalue` FROM `*PREFIX*appconfig` WHERE `appid` = ? AND `configkey` = ?' );
 		$result = $query->execute( array( $app, $key ));
 		$row = $result->fetchRow();
-		if($row){
+		if($row) {
 			return $row["configvalue"];
 		}else{
 			return $default;
 		}
 	}
-	
+
 	/**
 	 * @brief check if a key is set in the appconfig
 	 * @param string $app
 	 * @param string $key
 	 * @return bool
 	 */
-	public static function hasKey($app,$key){
+	public static function hasKey($app,$key) {
 		$exists = self::getKeys( $app );
 		return in_array( $key, $exists );
 	}
-	
+
 	/**
 	 * @brief sets a value in the appconfig
 	 * @param $app app
@@ -121,9 +121,9 @@ class OC_Appconfig{
 	 *
 	 * Sets a value. If the key did not exist before it will be created.
 	 */
-	public static function setValue( $app, $key, $value ){
+	public static function setValue( $app, $key, $value ) {
 		// Does the key exist? yes: update. No: insert
-		if(! self::hasKey($app,$key)){
+		if(! self::hasKey($app,$key)) {
 			$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*appconfig` ( `appid`, `configkey`, `configvalue` ) VALUES( ?, ?, ? )' );
 			$query->execute( array( $app, $key, $value ));
 		}
@@ -141,7 +141,7 @@ class OC_Appconfig{
 	 *
 	 * Deletes a key.
 	 */
-	public static function deleteKey( $app, $key ){
+	public static function deleteKey( $app, $key ) {
 		// Boring!
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*appconfig` WHERE `appid` = ? AND `configkey` = ?' );
 		$query->execute( array( $app, $key ));
@@ -156,28 +156,28 @@ class OC_Appconfig{
 	 *
 	 * Removes all keys in appconfig belonging to the app.
 	 */
-	public static function deleteApp( $app ){
+	public static function deleteApp( $app ) {
 		// Nothing special
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*appconfig` WHERE `appid` = ?' );
 		$query->execute( array( $app ));
 
 		return true;
 	}
-	
+
 	/**
 	 * get multiply values, either the app or key can be used as wildcard by setting it to false
 	 * @param app
 	 * @param key
 	 * @return array
 	 */
-	public static function getValues($app,$key){
-		if($app!==false and $key!==false){
+	public static function getValues($app,$key) {
+		if($app!==false and $key!==false) {
 			return false;
 		}
 		$fields='`configvalue`';
 		$where='WHERE';
 		$params=array();
-		if($app!==false){
+		if($app!==false) {
 			$fields.=', `configkey`';
 			$where.=' `appid` = ?';
 			$params[]=$app;
@@ -192,7 +192,7 @@ class OC_Appconfig{
 		$query=OC_DB::prepare($queryString);
 		$result=$query->execute($params);
 		$values=array();
-		while($row=$result->fetchRow()){
+		while($row=$result->fetchRow()) {
 			$values[$row[$key]]=$row['configvalue'];
 		}
 		return $values;
diff --git a/lib/archive.php b/lib/archive.php
index fabd7cc7a51..b4459c2b6ce 100644
--- a/lib/archive.php
+++ b/lib/archive.php
@@ -12,15 +12,15 @@ abstract class OC_Archive{
 	 * @param string path
 	 * @return OC_Archive
 	 */
-	public static function open($path){
+	public static function open($path) {
 		$ext=substr($path,strrpos($path,'.'));
-		switch($ext){
+		switch($ext) {
 			case '.zip':
 				return new OC_Archive_ZIP($path);
 			case '.gz':
 			case '.bz':
 			case '.bz2':
-				if(strpos($path,'.tar.')){
+				if(strpos($path,'.tar.')) {
 					return new OC_Archive_TAR($path);
 				}
 				break;
@@ -28,7 +28,7 @@ abstract class OC_Archive{
 				return new OC_Archive_TAR($path);
 		}
 	}
-	
+
 	abstract function __construct($source);
 	/**
 	 * add an empty folder to the archive
@@ -118,14 +118,14 @@ abstract class OC_Archive{
 	 * @param string source
 	 * @return bool
 	 */
-	function addRecursive($path,$source){
-		if($dh=opendir($source)){
+	function addRecursive($path,$source) {
+		if($dh=opendir($source)) {
 			$this->addFolder($path);
-			while($file=readdir($dh)){
-				if($file=='.' or $file=='..'){
+			while($file=readdir($dh)) {
+				if($file=='.' or $file=='..') {
 					continue;
 				}
-				if(is_dir($source.'/'.$file)){
+				if(is_dir($source.'/'.$file)) {
 					$this->addRecursive($path.'/'.$file,$source.'/'.$file);
 				}else{
 					$this->addFile($path.'/'.$file,$source.'/'.$file);
diff --git a/lib/archive/tar.php b/lib/archive/tar.php
index f6efd6d0ecc..639d2392b63 100644
--- a/lib/archive/tar.php
+++ b/lib/archive/tar.php
@@ -6,7 +6,7 @@
  * See the COPYING-README file.
  */
 
-require_once '3rdparty/Archive/Tar.php';
+require_once 'Archive/Tar.php';
 
 class OC_Archive_TAR extends OC_Archive{
 	const PLAIN=0;
@@ -14,17 +14,17 @@ class OC_Archive_TAR extends OC_Archive{
 	const BZIP=2;
 
 	private $fileList;
-	
+
 	/**
 	 * @var Archive_Tar tar
 	 */
 	private $tar=null;
 	private $path;
 
-	function __construct($source){
+	function __construct($source) {
 		$types=array(null,'gz','bz');
 		$this->path=$source;
-		$this->tar=new Archive_Tar($source,$types[self::getTarType($source)]);
+		$this->tar=new Archive_Tar($source, $types[self::getTarType($source)]);
 	}
 
 	/**
@@ -32,10 +32,10 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string file
 	 * @return str
 	 */
-	static public function getTarType($file){
-		if(strpos($file,'.')){
-			$extension=substr($file,strrpos($file,'.'));
-			switch($extension){
+	static public function getTarType($file) {
+		if(strpos($file, '.')) {
+			$extension=substr($file, strrpos($file, '.'));
+			switch($extension) {
 				case 'gz':
 				case 'tgz':
 					return self::GZIP;
@@ -55,23 +55,23 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string path
 	 * @return bool
 	 */
-	function addFolder($path){
+	function addFolder($path) {
 		$tmpBase=OC_Helper::tmpFolder();
-		if(substr($path,-1,1)!='/'){
+		if(substr($path, -1, 1)!='/') {
 			$path.='/';
 		}
-		if($this->fileExists($path)){
+		if($this->fileExists($path)) {
 			return false;
 		}
-		$parts=explode('/',$path);
+		$parts=explode('/', $path);
 		$folder=$tmpBase;
-		foreach($parts as $part){
+		foreach($parts as $part) {
 			$folder.='/'.$part;
-			if(!is_dir($folder)){
+			if(!is_dir($folder)) {
 				mkdir($folder);
 			}
 		}
-		$result=$this->tar->addModify(array($tmpBase.$path),'',$tmpBase);
+		$result=$this->tar->addModify(array($tmpBase.$path), '', $tmpBase);
 		rmdir($tmpBase.$path);
 		$this->fileList=false;
 		return $result;
@@ -82,17 +82,17 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string source either a local file or string data
 	 * @return bool
 	 */
-	function addFile($path,$source=''){
-		if($this->fileExists($path)){
+	function addFile($path,$source='') {
+		if($this->fileExists($path)) {
 			$this->remove($path);
 		}
-		if($source and $source[0]=='/' and file_exists($source)){
+		if($source and $source[0]=='/' and file_exists($source)) {
 			$header=array();
 			$dummy='';
 			$this->tar->_openAppend();
-			$result=$this->tar->_addfile($source,$header,$dummy,$dummy,$path);
+			$result=$this->tar->_addfile($source, $header, $dummy, $dummy, $path);
 		}else{
-			$result=$this->tar->addString($path,$source);
+			$result=$this->tar->addString($path, $source);
 		}
 		$this->fileList=false;
 		return $result;
@@ -104,36 +104,36 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function rename($source,$dest){
+	function rename($source,$dest) {
 		//no proper way to delete, rename entire archive, rename file and remake archive
 		$tmp=OCP\Files::tmpFolder();
 		$this->tar->extract($tmp);
-		rename($tmp.$source,$tmp.$dest);
+		rename($tmp.$source, $tmp.$dest);
 		$this->tar=null;
 		unlink($this->path);
-		$types=array(null,'gz','bz');
-		$this->tar=new Archive_Tar($this->path,$types[self::getTarType($this->path)]);
-		$this->tar->createModify(array($tmp),'',$tmp.'/');
+		$types=array(null, 'gz', 'bz');
+		$this->tar=new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
+		$this->tar->createModify(array($tmp), '', $tmp.'/');
 		$this->fileList=false;
 		return true;
 	}
 
-	private function getHeader($file){
+	private function getHeader($file) {
 		$headers=$this->tar->listContent();
-		foreach($headers as $header){
-			if($file==$header['filename'] or $file.'/'==$header['filename'] or '/'.$file.'/'==$header['filename'] or '/'.$file==$header['filename']){
+		foreach($headers as $header) {
+			if($file==$header['filename'] or $file.'/'==$header['filename'] or '/'.$file.'/'==$header['filename'] or '/'.$file==$header['filename']) {
 				return $header;
 			}
 		}
 		return null;
 	}
-	
+
 	/**
 	 * get the uncompressed size of a file in the archive
 	 * @param string path
 	 * @return int
 	 */
-	function filesize($path){
+	function filesize($path) {
 		$stat=$this->getHeader($path);
 		return $stat['size'];
 	}
@@ -142,7 +142,7 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string path
 	 * @return int
 	 */
-	function mtime($path){
+	function mtime($path) {
 		$stat=$this->getHeader($path);
 		return $stat['mtime'];
 	}
@@ -152,20 +152,20 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param path
 	 * @return array
 	 */
-	function getFolder($path){
+	function getFolder($path) {
 		$files=$this->getFiles();
 		$folderContent=array();
 		$pathLength=strlen($path);
-		foreach($files as $file){
-			if($file[0]=='/'){
-				$file=substr($file,1);
+		foreach($files as $file) {
+			if($file[0]=='/') {
+				$file=substr($file, 1);
 			}
-			if(substr($file,0,$pathLength)==$path and $file!=$path){
-				$result=substr($file,$pathLength);
-				if($pos=strpos($result,'/')){
-					$result=substr($result,0,$pos+1);
+			if(substr($file, 0, $pathLength)==$path and $file!=$path) {
+				$result=substr($file, $pathLength);
+				if($pos=strpos($result, '/')) {
+					$result=substr($result, 0, $pos+1);
 				}
-				if(array_search($result,$folderContent)===false){
+				if(array_search($result, $folderContent)===false) {
 					$folderContent[]=$result;
 				}
 			}
@@ -176,13 +176,13 @@ class OC_Archive_TAR extends OC_Archive{
 	 *get all files in the archive
 	 * @return array
 	 */
-	function getFiles(){
-		if($this->fileList){
+	function getFiles() {
+		if($this->fileList) {
 			return $this->fileList;
 		}
 		$headers=$this->tar->listContent();
 		$files=array();
-		foreach($headers as $header){
+		foreach($headers as $header) {
 			$files[]=$header['filename'];
 		}
 		$this->fileList=$files;
@@ -193,7 +193,7 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string path
 	 * @return string
 	 */
-	function getFile($path){
+	function getFile($path) {
 		return $this->tar->extractInString($path);
 	}
 	/**
@@ -202,18 +202,18 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function extractFile($path,$dest){
+	function extractFile($path,$dest) {
 		$tmp=OCP\Files::tmpFolder();
-		if(!$this->fileExists($path)){
+		if(!$this->fileExists($path)) {
 			return false;
 		}
-		if($this->fileExists('/'.$path)){
-			$success=$this->tar->extractList(array('/'.$path),$tmp);
+		if($this->fileExists('/'.$path)) {
+			$success=$this->tar->extractList(array('/'.$path), $tmp);
 		}else{
-			$success=$this->tar->extractList(array($path),$tmp);
+			$success=$this->tar->extractList(array($path), $tmp);
 		}
-		if($success){
-			rename($tmp.$path,$dest);
+		if($success) {
+			rename($tmp.$path, $dest);
 		}
 		OCP\Files::rmdirr($tmp);
 		return $success;
@@ -224,7 +224,7 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function extract($dest){
+	function extract($dest) {
 		return $this->tar->extract($dest);
 	}
 	/**
@@ -232,36 +232,36 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string path
 	 * @return bool
 	 */
-	function fileExists($path){
+	function fileExists($path) {
 		$files=$this->getFiles();
-		if((array_search($path,$files)!==false) or (array_search($path.'/',$files)!==false)){
+		if((array_search($path, $files)!==false) or (array_search($path.'/', $files)!==false)) {
 			return true;
 		}else{
 			$folderPath=$path;
-			if(substr($folderPath,-1,1)!='/'){
+			if(substr($folderPath, -1, 1)!='/') {
 				$folderPath.='/';
 			}
 			$pathLength=strlen($folderPath);
-			foreach($files as $file){
-				if(strlen($file)>$pathLength and substr($file,0,$pathLength)==$folderPath){
+			foreach($files as $file) {
+				if(strlen($file)>$pathLength and substr($file, 0, $pathLength)==$folderPath) {
 					return true;
 				}
 			}
 		}
-		if($path[0]!='/'){//not all programs agree on the use of a leading /
+		if($path[0]!='/') {//not all programs agree on the use of a leading /
 			return $this->fileExists('/'.$path);
 		}else{
 			return false;
 		}
 	}
-	
+
 	/**
 	 * remove a file or folder from the archive
 	 * @param string path
 	 * @return bool
 	 */
-	function remove($path){
-		if(!$this->fileExists($path)){
+	function remove($path) {
+		if(!$this->fileExists($path)) {
 			return false;
 		}
 		$this->fileList=false;
@@ -272,7 +272,7 @@ class OC_Archive_TAR extends OC_Archive{
 		$this->tar=null;
 		unlink($this->path);
 		$this->reopen();
-		$this->tar->createModify(array($tmp),'',$tmp);
+		$this->tar->createModify(array($tmp), '', $tmp);
 		return true;
 	}
 	/**
@@ -281,24 +281,24 @@ class OC_Archive_TAR extends OC_Archive{
 	 * @param string mode
 	 * @return resource
 	 */
-	function getStream($path,$mode){
-		if(strrpos($path,'.')!==false){
-			$ext=substr($path,strrpos($path,'.'));
+	function getStream($path,$mode) {
+		if(strrpos($path, '.')!==false) {
+			$ext=substr($path, strrpos($path, '.'));
 		}else{
 			$ext='';
 		}
 		$tmpFile=OCP\Files::tmpFile($ext);
-		if($this->fileExists($path)){
-			$this->extractFile($path,$tmpFile);
-		}elseif($mode=='r' or $mode=='rb'){
+		if($this->fileExists($path)) {
+			$this->extractFile($path, $tmpFile);
+		}elseif($mode=='r' or $mode=='rb') {
 			return false;
 		}
-		if($mode=='r' or $mode=='rb'){
-			return fopen($tmpFile,$mode);
+		if($mode=='r' or $mode=='rb') {
+			return fopen($tmpFile, $mode);
 		}else{
 			OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this,'writeBack');
 			self::$tempFiles[$tmpFile]=$path;
-			return fopen('close://'.$tmpFile,$mode);
+			return fopen('close://'.$tmpFile, $mode);
 		}
 	}
 
@@ -306,9 +306,9 @@ class OC_Archive_TAR extends OC_Archive{
 	/**
 	 * write back temporary files
 	 */
-	function writeBack($tmpFile){
-		if(isset(self::$tempFiles[$tmpFile])){
-			$this->addFile(self::$tempFiles[$tmpFile],$tmpFile);
+	function writeBack($tmpFile) {
+		if(isset(self::$tempFiles[$tmpFile])) {
+			$this->addFile(self::$tempFiles[$tmpFile], $tmpFile);
 			unlink($tmpFile);
 		}
 	}
@@ -316,12 +316,12 @@ class OC_Archive_TAR extends OC_Archive{
 	/**
 	 * reopen the archive to ensure everything is written
 	 */
-	private function reopen(){
-		if($this->tar){
+	private function reopen() {
+		if($this->tar) {
 			$this->tar->_close();
 			$this->tar=null;
 		}
 		$types=array(null,'gz','bz');
-		$this->tar=new Archive_Tar($this->path,$types[self::getTarType($this->path)]);
+		$this->tar=new Archive_Tar($this->path, $types[self::getTarType($this->path)]);
 	}
 }
diff --git a/lib/archive/zip.php b/lib/archive/zip.php
index c1a5c35738b..a2b07f1a35d 100644
--- a/lib/archive/zip.php
+++ b/lib/archive/zip.php
@@ -12,13 +12,13 @@ class OC_Archive_ZIP extends OC_Archive{
 	 */
 	private $zip=null;
 	private $path;
-	
-	function __construct($source){
+
+	function __construct($source) {
 		$this->path=$source;
 		$this->zip=new ZipArchive();
-		if($this->zip->open($source,ZipArchive::CREATE)){
+		if($this->zip->open($source, ZipArchive::CREATE)) {
 		}else{
-			OCP\Util::writeLog('files_archive','Error while opening archive '.$source,OCP\Util::WARN);
+			OCP\Util::writeLog('files_archive', 'Error while opening archive '.$source, OCP\Util::WARN);
 		}
 	}
 	/**
@@ -26,7 +26,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string path
 	 * @return bool
 	 */
-	function addFolder($path){
+	function addFolder($path) {
 		return $this->zip->addEmptyDir($path);
 	}
 	/**
@@ -35,13 +35,13 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string source either a local file or string data
 	 * @return bool
 	 */
-	function addFile($path,$source=''){
-		if($source and $source[0]=='/' and file_exists($source)){
-			$result=$this->zip->addFile($source,$path);
+	function addFile($path,$source='') {
+		if($source and $source[0]=='/' and file_exists($source)) {
+			$result=$this->zip->addFile($source, $path);
 		}else{
-			$result=$this->zip->addFromString($path,$source);
+			$result=$this->zip->addFromString($path, $source);
 		}
-		if($result){
+		if($result) {
 			$this->zip->close();//close and reopen to save the zip
 			$this->zip->open($this->path);
 		}
@@ -53,17 +53,17 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function rename($source,$dest){
+	function rename($source,$dest) {
 		$source=$this->stripPath($source);
 		$dest=$this->stripPath($dest);
-		$this->zip->renameName($source,$dest);
+		$this->zip->renameName($source, $dest);
 	}
 	/**
 	 * get the uncompressed size of a file in the archive
 	 * @param string path
 	 * @return int
 	 */
-	function filesize($path){
+	function filesize($path) {
 		$stat=$this->zip->statName($path);
 		return $stat['size'];
 	}
@@ -72,7 +72,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string path
 	 * @return int
 	 */
-	function mtime($path){
+	function mtime($path) {
 		return filemtime($this->path);
 	}
 	/**
@@ -80,14 +80,14 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param path
 	 * @return array
 	 */
-	function getFolder($path){
+	function getFolder($path) {
 		$files=$this->getFiles();
 		$folderContent=array();
 		$pathLength=strlen($path);
-		foreach($files as $file){
-			if(substr($file,0,$pathLength)==$path and $file!=$path){
-				if(strrpos(substr($file,0,-1),'/')<=$pathLength){
-					$folderContent[]=substr($file,$pathLength);
+		foreach($files as $file) {
+			if(substr($file, 0, $pathLength)==$path and $file!=$path) {
+				if(strrpos(substr($file, 0, -1),'/')<=$pathLength) {
+					$folderContent[]=substr($file, $pathLength);
 				}
 			}
 		}
@@ -97,10 +97,10 @@ class OC_Archive_ZIP extends OC_Archive{
 	 *get all files in the archive
 	 * @return array
 	 */
-	function getFiles(){
+	function getFiles() {
 		$fileCount=$this->zip->numFiles;
 		$files=array();
-		for($i=0;$i<$fileCount;$i++){
+		for($i=0;$i<$fileCount;$i++) {
 			$files[]=$this->zip->getNameIndex($i);
 		}
 		return $files;
@@ -110,7 +110,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string path
 	 * @return string
 	 */
-	function getFile($path){
+	function getFile($path) {
 		return $this->zip->getFromName($path);
 	}
 	/**
@@ -119,9 +119,9 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function extractFile($path,$dest){
+	function extractFile($path,$dest) {
 		$fp = $this->zip->getStream($path);
-		file_put_contents($dest,$fp);
+		file_put_contents($dest, $fp);
 	}
 	/**
 	 * extract the archive
@@ -129,7 +129,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string dest
 	 * @return bool
 	 */
-	function extract($dest){
+	function extract($dest) {
 		return $this->zip->extractTo($dest);
 	}
 	/**
@@ -137,7 +137,7 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string path
 	 * @return bool
 	 */
-	function fileExists($path){
+	function fileExists($path) {
 		return ($this->zip->locateName($path)!==false) or ($this->zip->locateName($path.'/')!==false);
 	}
 	/**
@@ -145,8 +145,8 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string path
 	 * @return bool
 	 */
-	function remove($path){
-		if($this->fileExists($path.'/')){
+	function remove($path) {
+		if($this->fileExists($path.'/')) {
 			return $this->zip->deleteName($path.'/');
 		}else{
 			return $this->zip->deleteName($path);
@@ -158,22 +158,22 @@ class OC_Archive_ZIP extends OC_Archive{
 	 * @param string mode
 	 * @return resource
 	 */
-	function getStream($path,$mode){
-		if($mode=='r' or $mode=='rb'){
+	function getStream($path,$mode) {
+		if($mode=='r' or $mode=='rb') {
 			return $this->zip->getStream($path);
 		}else{//since we cant directly get a writable stream, make a temp copy of the file and put it back in the archive when the stream is closed
-			if(strrpos($path,'.')!==false){
-				$ext=substr($path,strrpos($path,'.'));
+			if(strrpos($path, '.')!==false) {
+				$ext=substr($path, strrpos($path, '.'));
 			}else{
 				$ext='';
 			}
 			$tmpFile=OCP\Files::tmpFile($ext);
 			OC_CloseStreamWrapper::$callBacks[$tmpFile]=array($this,'writeBack');
-			if($this->fileExists($path)){
-				$this->extractFile($path,$tmpFile);
+			if($this->fileExists($path)) {
+				$this->extractFile($path, $tmpFile);
 			}
 			self::$tempFiles[$tmpFile]=$path;
-			return fopen('close://'.$tmpFile,$mode);
+			return fopen('close://'.$tmpFile, $mode);
 		}
 	}
 
@@ -181,16 +181,16 @@ class OC_Archive_ZIP extends OC_Archive{
 	/**
 	 * write back temporary files
 	 */
-	function writeBack($tmpFile){
-		if(isset(self::$tempFiles[$tmpFile])){
-			$this->addFile(self::$tempFiles[$tmpFile],$tmpFile);
+	function writeBack($tmpFile) {
+		if(isset(self::$tempFiles[$tmpFile])) {
+			$this->addFile(self::$tempFiles[$tmpFile], $tmpFile);
 			unlink($tmpFile);
 		}
 	}
 
-	private function stripPath($path){
-		if(!$path || $path[0]=='/'){
-			return substr($path,1);
+	private function stripPath($path) {
+		if(!$path || $path[0]=='/') {
+			return substr($path, 1);
 		}else{
 			return $path;
 		}
diff --git a/lib/backgroundjob/queuedtask.php b/lib/backgroundjob/queuedtask.php
index a7ec3efbf33..8264e1a0ae6 100644
--- a/lib/backgroundjob/queuedtask.php
+++ b/lib/backgroundjob/queuedtask.php
@@ -29,7 +29,7 @@ class OC_BackgroundJob_QueuedTask{
 	 * @param $id ID of the task
 	 * @return associative array
 	 */
-	public static function find( $id ){
+	public static function find( $id ) {
 		$stmt = OC_DB::prepare( 'SELECT * FROM `*PREFIX*queuedtasks` WHERE `id` = ?' );
 		$result = $stmt->execute(array($id));
 		return $result->fetchRow();
@@ -39,14 +39,14 @@ class OC_BackgroundJob_QueuedTask{
 	 * @brief Gets all queued tasks
 	 * @return array with associative arrays
 	 */
-	public static function all(){
+	public static function all() {
 		// Array for objects
 		$return = array();
 
 		// Get Data
 		$stmt = OC_DB::prepare( 'SELECT * FROM `*PREFIX*queuedtasks`' );
 		$result = $stmt->execute(array());
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$return[] = $row;
 		}
 
@@ -58,14 +58,14 @@ class OC_BackgroundJob_QueuedTask{
 	 * @param $app app name
 	 * @return array with associative arrays
 	 */
-	public static function whereAppIs( $app ){
+	public static function whereAppIs( $app ) {
 		// Array for objects
 		$return = array();
 
 		// Get Data
 		$stmt = OC_DB::prepare( 'SELECT * FROM `*PREFIX*queuedtasks` WHERE `app` = ?' );
 		$result = $stmt->execute(array($app));
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$return[] = $row;
 		}
 
@@ -81,7 +81,7 @@ class OC_BackgroundJob_QueuedTask{
 	 * @param $parameters all useful data as text
 	 * @return id of task
 	 */
-	public static function add( $app, $klass, $method, $parameters ){
+	public static function add( $app, $klass, $method, $parameters ) {
 		$stmt = OC_DB::prepare( 'INSERT INTO `*PREFIX*queuedtasks` (`app`, `klass`, `method`, `parameters`) VALUES(?,?,?,?)' );
 		$result = $stmt->execute(array($app, $klass, $method, $parameters ));
 
@@ -95,7 +95,7 @@ class OC_BackgroundJob_QueuedTask{
 	 *
 	 * Deletes a report
 	 */
-	public static function delete( $id ){
+	public static function delete( $id ) {
 		$stmt = OC_DB::prepare( 'DELETE FROM `*PREFIX*queuedtasks` WHERE `id` = ?' );
 		$result = $stmt->execute(array($id));
 
diff --git a/lib/backgroundjob/regulartask.php b/lib/backgroundjob/regulartask.php
index 53bd4eb5e9b..9976872ee13 100644
--- a/lib/backgroundjob/regulartask.php
+++ b/lib/backgroundjob/regulartask.php
@@ -32,7 +32,7 @@ class OC_BackgroundJob_RegularTask{
 	 * @param $method method name
 	 * @return true
 	 */
-	static public function register( $klass, $method ){
+	static public function register( $klass, $method ) {
 		// Create the data structure
 		self::$registered["$klass-$method"] = array( $klass, $method );
 
@@ -46,7 +46,7 @@ class OC_BackgroundJob_RegularTask{
 	 *
 	 * key is string "$klass-$method", value is array( $klass, $method )
 	 */
-	static public function all(){
+	static public function all() {
 		return self::$registered;
 	}
 }
diff --git a/lib/backgroundjob/worker.php b/lib/backgroundjob/worker.php
index b4f0429b319..e966ac9647c 100644
--- a/lib/backgroundjob/worker.php
+++ b/lib/backgroundjob/worker.php
@@ -22,7 +22,7 @@
 
 /**
  * This class does the dirty work.
- * 
+ *
  * TODO: locking in doAllSteps
  */
 class OC_BackgroundJob_Worker{
@@ -34,14 +34,14 @@ class OC_BackgroundJob_Worker{
 	 * This method should be called by cli scripts that do not let the user
 	 * wait.
 	 */
-	public static function doAllSteps(){
+	public static function doAllSteps() {
 		// Do our regular work
 		$lasttask = OC_Appconfig::getValue( 'core', 'backgroundjobs_task', '' );
 
 		$regular_tasks = OC_BackgroundJob_RegularTask::all();
 		ksort( $regular_tasks );
-		foreach( $regular_tasks as $key => $value ){
-			if( strcmp( $key, $lasttask ) > 0 ){
+		foreach( $regular_tasks as $key => $value ) {
+			if( strcmp( $key, $lasttask ) > 0 ) {
 				// Set "restart here" config value
 				OC_Appconfig::setValue( 'core', 'backgroundjobs_task', $key );
 				call_user_func( $value );
@@ -52,11 +52,11 @@ class OC_BackgroundJob_Worker{
 
 		// Do our queued tasks
 		$queued_tasks = OC_BackgroundJob_QueuedTask::all();
-		foreach( $queued_tasks as $task ){
+		foreach( $queued_tasks as $task ) {
 			OC_BackgroundJob_QueuedTask::delete( $task['id'] );
 			call_user_func( array( $task['klass'], $task['method'] ), $task['parameters'] );
 		}
-		
+
 		return true;
 	}
 
@@ -68,10 +68,10 @@ class OC_BackgroundJob_Worker{
 	 * with the next step. This method should be used by webcron and ajax
 	 * services.
 	 */
-	public static function doNextStep(){
+	public static function doNextStep() {
 		$laststep = OC_Appconfig::getValue( 'core', 'backgroundjobs_step', 'regular_tasks' );
-		
-		if( $laststep == 'regular_tasks' ){
+
+		if( $laststep == 'regular_tasks' ) {
 			// get last app
 			$lasttask = OC_Appconfig::getValue( 'core', 'backgroundjobs_task', '' );
 
@@ -79,10 +79,10 @@ class OC_BackgroundJob_Worker{
 			$regular_tasks = OC_BackgroundJob_RegularTask::all();
 			ksort( $regular_tasks );
 			$done = false;
-			
+
 			// search for next background job
-			foreach( $regular_tasks as $key => $value ){
-				if( strcmp( $key, $lasttask ) > 0 ){
+			foreach( $regular_tasks as $key => $value ) {
+				if( strcmp( $key, $lasttask ) > 0 ) {
 					OC_Appconfig::setValue( 'core', 'backgroundjobs_task', $key );
 					$done = true;
 					call_user_func( $value );
@@ -90,14 +90,14 @@ class OC_BackgroundJob_Worker{
 				}
 			}
 
-			if( $done == false ){
+			if( $done == false ) {
 				// Next time load queued tasks
 				OC_Appconfig::setValue( 'core', 'backgroundjobs_step', 'queued_tasks' );
 			}
 		}
 		else{
 			$tasks = OC_BackgroundJob_QueuedTask::all();
-			if( count( $tasks )){
+			if( count( $tasks )) {
 				$task = $tasks[0];
 				// delete job before we execute it. This prevents endless loops
 				// of failing jobs.
@@ -112,7 +112,7 @@ class OC_BackgroundJob_Worker{
 				OC_Appconfig::setValue( 'core', 'backgroundjobs_task', '' );
 			}
 		}
-		
+
 		return true;
 	}
 }
diff --git a/lib/base.php b/lib/base.php
index b4f3e667133..679acdb6e5d 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -51,7 +51,8 @@ class OC{
 	 */
 	public static $THIRDPARTYWEBROOT = '';
 	/**
-	 * The installation path array of the apps folder on the server (e.g. /srv/http/owncloud) 'path' and web path in 'url'
+	 * The installation path array of the apps folder on the server (e.g. /srv/http/owncloud) 'path' and
+	 * web path in 'url'
 	 */
 	public static $APPSROOTS = array();
 	/*
@@ -69,50 +70,57 @@ class OC{
 	/**
 	 * SPL autoload
 	 */
-	public static function autoload($className){
-		if(array_key_exists($className,OC::$CLASSPATH)){
+	public static function autoload($className) {
+		if(array_key_exists($className, OC::$CLASSPATH)) {
 			/** @TODO: Remove this when necessary
 			 Remove "apps/" from inclusion path for smooth migration to mutli app dir
 			*/
-			$path = preg_replace('/apps\//','', OC::$CLASSPATH[$className]);
+			$path = str_replace('apps/', '', OC::$CLASSPATH[$className]);
 			require_once $path;
 		}
-		elseif(strpos($className,'OC_')===0){
-			require_once strtolower(str_replace('_','/',substr($className,3)) . '.php');
+		elseif(strpos($className, 'OC_')===0) {
+			$path = strtolower(str_replace('_', '/', substr($className, 3)) . '.php');
 		}
-		elseif(strpos($className,'OCP\\')===0){
-			require_once 'public/'.strtolower(str_replace('\\','/',substr($className,3)) . '.php');
+		elseif(strpos($className, 'OCP\\')===0) {
+			$path = 'public/'.strtolower(str_replace('\\', '/', substr($className, 3)) . '.php');
 		}
-		elseif(strpos($className,'OCA\\')===0){
-			require_once 'apps/'.strtolower(str_replace('\\','/',substr($className,3)) . '.php');
+		elseif(strpos($className, 'OCA\\')===0) {
+			$path = 'apps/'.strtolower(str_replace('\\', '/', substr($className, 3)) . '.php');
 		}
-		elseif(strpos($className,'Sabre_')===0) {
-			require_once str_replace('_','/',$className) . '.php';
+		elseif(strpos($className, 'Sabre_')===0) {
+			$path =  str_replace('_', '/', $className) . '.php';
 		}
-		elseif(strpos($className,'Test_')===0){
-			require_once 'tests/lib/'.strtolower(str_replace('_','/',substr($className,5)) . '.php');
+		elseif(strpos($className, 'Test_')===0) {
+			$path =  'tests/lib/'.strtolower(str_replace('_', '/', substr($className, 5)) . '.php');
+		}else{
+			return false;
+		}
+
+		if($fullPath = stream_resolve_include_path($path)) {
+			require_once $path;
 		}
+		return false;
 	}
 
-	public static function initPaths(){
+	public static function initPaths() {
 		// calculate the root directories
-		OC::$SERVERROOT=str_replace("\\",'/',substr(__FILE__,0,-13));
-		OC::$SUBURI= str_replace("\\","/",substr(realpath($_SERVER["SCRIPT_FILENAME"]),strlen(OC::$SERVERROOT)));
+		OC::$SERVERROOT=str_replace("\\", '/', substr(__FILE__, 0, -13));
+		OC::$SUBURI= str_replace("\\", "/", substr(realpath($_SERVER["SCRIPT_FILENAME"]), strlen(OC::$SERVERROOT)));
 		$scriptName=$_SERVER["SCRIPT_NAME"];
-		if(substr($scriptName,-1)=='/'){
+		if(substr($scriptName, -1)=='/') {
 			$scriptName.='index.php';
 			//make sure suburi follows the same rules as scriptName
-			if(substr(OC::$SUBURI,-9)!='index.php'){
-				if(substr(OC::$SUBURI,-1)!='/'){
+			if(substr(OC::$SUBURI, -9)!='index.php') {
+				if(substr(OC::$SUBURI, -1)!='/') {
 					OC::$SUBURI=OC::$SUBURI.'/';
 				}
 				OC::$SUBURI=OC::$SUBURI.'index.php';
 			}
 		}
 
-		OC::$WEBROOT=substr($scriptName,0,strlen($scriptName)-strlen(OC::$SUBURI));
+		OC::$WEBROOT=substr($scriptName, 0, strlen($scriptName)-strlen(OC::$SUBURI));
 
-		if(OC::$WEBROOT!='' and OC::$WEBROOT[0]!=='/'){
+		if(OC::$WEBROOT!='' and OC::$WEBROOT[0]!=='/') {
 			OC::$WEBROOT='/'.OC::$WEBROOT;
 		}
 
@@ -123,13 +131,13 @@ class OC{
 		);
 
 		// search the 3rdparty folder
-		if(OC_Config::getValue('3rdpartyroot', '')<>'' and OC_Config::getValue('3rdpartyurl', '')<>''){
+		if(OC_Config::getValue('3rdpartyroot', '')<>'' and OC_Config::getValue('3rdpartyurl', '')<>'') {
 			OC::$THIRDPARTYROOT=OC_Config::getValue('3rdpartyroot', '');
 			OC::$THIRDPARTYWEBROOT=OC_Config::getValue('3rdpartyurl', '');
-		}elseif(file_exists(OC::$SERVERROOT.'/3rdparty')){
+		}elseif(file_exists(OC::$SERVERROOT.'/3rdparty')) {
 			OC::$THIRDPARTYROOT=OC::$SERVERROOT;
 			OC::$THIRDPARTYWEBROOT=OC::$WEBROOT;
-		}elseif(file_exists(OC::$SERVERROOT.'/../3rdparty')){
+		}elseif(file_exists(OC::$SERVERROOT.'/../3rdparty')) {
 			OC::$THIRDPARTYWEBROOT=rtrim(dirname(OC::$WEBROOT), '/');
 			OC::$THIRDPARTYROOT=rtrim(dirname(OC::$SERVERROOT), '/');
 		}else{
@@ -138,21 +146,21 @@ class OC{
 		}
 		// search the apps folder
 		$config_paths = OC_Config::getValue('apps_paths', array());
-		if(! empty($config_paths)){
+		if(! empty($config_paths)) {
 			foreach($config_paths as $paths) {
 				if( isset($paths['url']) && isset($paths['path'])) {
-					$paths['url'] = rtrim($paths['url'],'/');
-					$paths['path'] = rtrim($paths['path'],'/');
+					$paths['url'] = rtrim($paths['url'], '/');
+					$paths['path'] = rtrim($paths['path'], '/');
 					OC::$APPSROOTS[] = $paths;
 				}
 			}
-		}elseif(file_exists(OC::$SERVERROOT.'/apps')){
+		}elseif(file_exists(OC::$SERVERROOT.'/apps')) {
 			OC::$APPSROOTS[] = array('path'=> OC::$SERVERROOT.'/apps', 'url' => '/apps', 'writable' => true);
-		}elseif(file_exists(OC::$SERVERROOT.'/../apps')){
+		}elseif(file_exists(OC::$SERVERROOT.'/../apps')) {
 			OC::$APPSROOTS[] = array('path'=> rtrim(dirname(OC::$SERVERROOT), '/').'/apps', 'url' => '/apps', 'writable' => true);
 		}
 
-		if(empty(OC::$APPSROOTS)){
+		if(empty(OC::$APPSROOTS)) {
 			echo("apps directory not found! Please put the ownCloud apps folder in the ownCloud folder or the folder above. You can also configure the location in the config.php file.");
 			exit;
 		}
@@ -174,7 +182,7 @@ class OC{
 	public static function checkInstalled() {
 		// Redirect to installer if not installed
 		if (!OC_Config::getValue('installed', false) && OC::$SUBURI != '/index.php') {
-			if(!OC::$CLI){
+			if(!OC::$CLI) {
 				$url = 'http://'.$_SERVER['SERVER_NAME'].OC::$WEBROOT.'/index.php';
 				header("Location: $url");
 			}
@@ -184,7 +192,7 @@ class OC{
 
 	public static function checkSSL() {
 		// redirect to https site if configured
-		if( OC_Config::getValue( "forcessl", false )){
+		if( OC_Config::getValue( "forcessl", false )) {
 			ini_set("session.cookie_secure", "on");
 			if(OC_Request::serverProtocol()<>'https' and !OC::$CLI) {
 				$url = "https://". OC_Request::serverHost() . $_SERVER['REQUEST_URI'];
@@ -195,24 +203,25 @@ class OC{
 	}
 
 	public static function checkUpgrade() {
-		if(OC_Config::getValue('installed', false)){
-			$installedVersion=OC_Config::getValue('version','0.0.0');
-			$currentVersion=implode('.',OC_Util::getVersion());
+		if(OC_Config::getValue('installed', false)) {
+			$installedVersion=OC_Config::getValue('version', '0.0.0');
+			$currentVersion=implode('.', OC_Util::getVersion());
 			if (version_compare($currentVersion, $installedVersion, '>')) {
-				OC_Log::write('core','starting upgrade from '.$installedVersion.' to '.$currentVersion,OC_Log::DEBUG);
+				OC_Log::write('core', 'starting upgrade from '.$installedVersion.' to '.$currentVersion, OC_Log::DEBUG);
 				$result=OC_DB::updateDbFromStructure(OC::$SERVERROOT.'/db_structure.xml');
-				if(!$result){
+				if(!$result) {
 					echo 'Error while upgrading the database';
 					die();
 				}
 				if(file_exists(OC::$SERVERROOT."/config/config.php") and !is_writable(OC::$SERVERROOT."/config/config.php")) {
 					$tmpl = new OC_Template( '', 'error', 'guest' );
-					$tmpl->assign('errors',array(1=>array('error'=>"Can't write into config directory 'config'",'hint'=>"You can usually fix this by giving the webserver user write access to the config directory in owncloud")));
+					$tmpl->assign('errors', array(1=>array('error'=>"Can't write into config directory 'config'",'hint'=>"You can usually fix this by giving the webserver user write access to the config directory in owncloud")));
 					$tmpl->printPage();
 					exit;
 				}
+				OC_Minimizer::clearCache();
 
-				OC_Config::setValue('version',implode('.',OC_Util::getVersion()));
+				OC_Config::setValue('version', implode('.', OC_Util::getVersion()));
 				OC_App::checkAppsRequirements();
 				// load all apps to also upgrade enabled apps
 				OC_App::loadApps();
@@ -232,14 +241,14 @@ class OC{
 		OC_Util::addScript( "eventsource" );
 		OC_Util::addScript( "config" );
 		//OC_Util::addScript( "multiselect" );
-		OC_Util::addScript('search','result');
+		OC_Util::addScript('search', 'result');
 
-		if( OC_Config::getValue( 'installed', false )){
-			if( OC_Appconfig::getValue( 'core', 'backgroundjobs_mode', 'ajax' ) == 'ajax' ){
+		if( OC_Config::getValue( 'installed', false )) {
+			if( OC_Appconfig::getValue( 'core', 'backgroundjobs_mode', 'ajax' ) == 'ajax' ) {
 				OC_Util::addScript( 'backgroundjobs' );
 			}
 		}
-		
+
 		OC_Util::addStyle( "styles" );
 		OC_Util::addStyle( "multiselect" );
 		OC_Util::addStyle( "jquery-ui-1.8.16.custom" );
@@ -247,11 +256,11 @@ class OC{
 	}
 
 	public static function initSession() {
-		ini_set('session.cookie_httponly','1;');
+		ini_set('session.cookie_httponly', '1;');
 		session_start();
 	}
 
-	public static function init(){
+	public static function init() {
 		// register autoloader
 		spl_autoload_register(array('OC','autoload'));
 		setlocale(LC_ALL, 'en_US.UTF-8');
@@ -259,13 +268,13 @@ class OC{
 		// set some stuff
 		//ob_start();
 		error_reporting(E_ALL | E_STRICT);
-		if (defined('DEBUG') && DEBUG){
+		if (defined('DEBUG') && DEBUG) {
 			ini_set('display_errors', 1);
 		}
 		self::$CLI=(php_sapi_name() == 'cli');
 
 		date_default_timezone_set('UTC');
-		ini_set('arg_separator.output','&amp;');
+		ini_set('arg_separator.output', '&amp;');
 
 		// try to switch magic quotes off.
 		if(function_exists('set_magic_quotes_runtime')) {
@@ -278,29 +287,27 @@ class OC{
 
 		//try to set the maximum execution time to 60min
 		@set_time_limit(3600);
-		@ini_set('max_execution_time',3600);
-		@ini_set('max_input_time',3600);
+		@ini_set('max_execution_time', 3600);
+		@ini_set('max_input_time', 3600);
 
 		//try to set the maximum filesize to 10G
-		@ini_set('upload_max_filesize','10G');
-		@ini_set('post_max_size','10G');
-		@ini_set('file_uploads','50');
+		@ini_set('upload_max_filesize', '10G');
+		@ini_set('post_max_size', '10G');
+		@ini_set('file_uploads', '50');
 
 		//try to set the session lifetime to 60min
-		@ini_set('gc_maxlifetime','3600');
+		@ini_set('gc_maxlifetime', '3600');
 
 
 		//set http auth headers for apache+php-cgi work around
-		if (isset($_SERVER['HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['HTTP_AUTHORIZATION'], $matches))
-		{
+		if (isset($_SERVER['HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['HTTP_AUTHORIZATION'], $matches)) {
 			list($name, $password) = explode(':', base64_decode($matches[1]));
 			$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
 			$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
 		}
 
 		//set http auth headers for apache+php-cgi work around if variable gets renamed by apache
-		if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches))
-		{
+		if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches)) {
 			list($name, $password) = explode(':', base64_decode($matches[1]));
 			$_SERVER['PHP_AUTH_USER'] = strip_tags($name);
 			$_SERVER['PHP_AUTH_PW'] = strip_tags($password);
@@ -308,8 +315,15 @@ class OC{
 
 		self::initPaths();
 
+		// set debug mode if an xdebug session is active
+		if (!defined('DEBUG') || !DEBUG) {
+			if(isset($_COOKIE['XDEBUG_SESSION'])) {
+				define('DEBUG', true);
+			}
+		}
+
 		// register the stream wrappers
-		require_once('streamwrappers.php');
+		require_once 'streamwrappers.php';
 		stream_wrapper_register("fakedir", "OC_FakeDirStream");
 		stream_wrapper_register('static', 'OC_StaticStreamWrapper');
 		stream_wrapper_register('close', 'OC_CloseStreamWrapper');
@@ -327,7 +341,7 @@ class OC{
 		}
 
 		// User and Groups
-		if( !OC_Config::getValue( "installed", false )){
+		if( !OC_Config::getValue( "installed", false )) {
 			$_SESSION['user_id'] = '';
 		}
 
@@ -338,16 +352,23 @@ class OC{
 		// This includes plugins for users and filesystems as well
 		global $RUNTIME_NOAPPS;
 		global $RUNTIME_APPTYPES;
-		if(!$RUNTIME_NOAPPS ){
-			if($RUNTIME_APPTYPES){
+		if(!$RUNTIME_NOAPPS ) {
+			if($RUNTIME_APPTYPES) {
 				OC_App::loadApps($RUNTIME_APPTYPES);
 			}else{
 				OC_App::loadApps();
 			}
 		}
 
+		//setup extra user backends
+		OC_User::setupBackends();
+
+		// register cache cleanup jobs
+		OC_BackgroundJob_RegularTask::register('OC_Cache_FileGlobal', 'gc');
+		OC_Hook::connect('OC_User', 'post_login', 'OC_Cache_File', 'loginListener');
+
 		// Check for blacklisted files
-		OC_Hook::connect('OC_Filesystem','write','OC_Filesystem','isBlacklisted');
+		OC_Hook::connect('OC_Filesystem', 'write', 'OC_Filesystem', 'isBlacklisted');
 		OC_Hook::connect('OC_Filesystem', 'rename', 'OC_Filesystem', 'isBlacklisted');
 
 		//make sure temporary files are cleaned up
@@ -355,7 +376,7 @@ class OC{
 
 		//parse the given parameters
 		self::$REQUESTEDAPP = (isset($_GET['app']) && trim($_GET['app']) != '' && !is_null($_GET['app'])?str_replace(array('\0', '/', '\\', '..'), '', strip_tags($_GET['app'])):OC_Config::getValue('defaultapp', 'files'));
-		if(substr_count(self::$REQUESTEDAPP, '?') != 0){
+		if(substr_count(self::$REQUESTEDAPP, '?') != 0) {
 			$app = substr(self::$REQUESTEDAPP, 0, strpos(self::$REQUESTEDAPP, '?'));
 			$param = substr($_GET['app'], strpos($_GET['app'], '?') + 1);
 			parse_str($param, $get);
@@ -364,7 +385,7 @@ class OC{
 			$_GET['app'] = $app;
 		}
 		self::$REQUESTEDFILE = (isset($_GET['getfile'])?$_GET['getfile']:null);
-		if(substr_count(self::$REQUESTEDFILE, '?') != 0){
+		if(substr_count(self::$REQUESTEDFILE, '?') != 0) {
 			$file = substr(self::$REQUESTEDFILE, 0, strpos(self::$REQUESTEDFILE, '?'));
 			$param = substr(self::$REQUESTEDFILE, strpos(self::$REQUESTEDFILE, '?') + 1);
 			parse_str($param, $get);
@@ -372,10 +393,10 @@ class OC{
 			self::$REQUESTEDFILE = $file;
 			$_GET['getfile'] = $file;
 		}
-		if(!is_null(self::$REQUESTEDFILE)){
+		if(!is_null(self::$REQUESTEDFILE)) {
 			$subdir = OC_App::getAppPath(OC::$REQUESTEDAPP) . '/' . self::$REQUESTEDFILE;
 			$parent = OC_App::getAppPath(OC::$REQUESTEDAPP);
-			if(!OC_Helper::issubdirectory($subdir, $parent)){
+			if(!OC_Helper::issubdirectory($subdir, $parent)) {
 				self::$REQUESTEDFILE = null;
 				header('HTTP/1.0 404 Not Found');
 				exit;
@@ -390,30 +411,31 @@ class OC{
 		if (!OC_Config::getValue('installed', false)) {
 			// Check for autosetup:
 			$autosetup_file = OC::$SERVERROOT."/config/autoconfig.php";
-			if( file_exists( $autosetup_file )){
-				OC_Log::write('core','Autoconfig file found, setting up owncloud...',OC_Log::INFO);
-				include( $autosetup_file );
+			if( file_exists( $autosetup_file )) {
+				OC_Log::write('core', 'Autoconfig file found, setting up owncloud...', OC_Log::INFO);
+				include $autosetup_file;
 				$_POST['install'] = 'true';
 				$_POST = array_merge ($_POST, $AUTOCONFIG);
 				unlink($autosetup_file);
 			}
 			OC_Util::addScript('setup');
-			require_once('setup.php');
+			require_once 'setup.php';
 			exit();
 		}
 		// Handle WebDAV
-		if($_SERVER['REQUEST_METHOD']=='PROPFIND'){
+		if($_SERVER['REQUEST_METHOD']=='PROPFIND') {
 			header('location: '.OC_Helper::linkToRemote('webdav'));
 			return;
 		}
 		// Handle app css files
-		if(substr(OC::$REQUESTEDFILE,-3) == 'css') {
+		if(substr(OC::$REQUESTEDFILE, -3) == 'css') {
 			self::loadCSSFile();
 			return;
 		}
 		// Someone is logged in :
 		if(OC_User::isLoggedIn()) {
 			OC_App::loadApps();
+			OC_User::setupBackends();
 			if(isset($_GET["logout"]) and ($_GET["logout"])) {
 				OC_User::logout();
 				header("Location: ".OC::$WEBROOT.'/');
@@ -424,8 +446,7 @@ class OC{
 					$file = 'index.php';
 				}
 				$file_ext = substr($file, -3);
-				if ($file_ext != 'php'
-					|| !self::loadAppScriptFile($app, $file)) {
+				if ($file_ext != 'php'|| !self::loadAppScriptFile($app, $file)) {
 					header('HTTP/1.0 404 Not Found');
 				}
 			}
@@ -440,7 +461,7 @@ class OC{
 		$file = $app_path . '/' . $file;
 		unset($app, $app_path);
 		if (file_exists($file)) {
-			require_once($file);
+			require_once $file;
 			return true;
 		}
 		return false;
@@ -469,7 +490,7 @@ class OC{
 		// Someone wants to log in :
 		} elseif (OC::tryFormLogin()) {
 			$error = true;
-		
+
 		// The user is already authenticated using Apaches AuthType Basic... very usable in combination with LDAP
 		} elseif (OC::tryBasicAuthLogin()) {
 			$error = true;
@@ -479,18 +500,20 @@ class OC{
 
 	protected static function tryRememberLogin() {
 		if(!isset($_COOKIE["oc_remember_login"])
-		|| !isset($_COOKIE["oc_token"])
-		|| !isset($_COOKIE["oc_username"])
-		|| !$_COOKIE["oc_remember_login"]) {
+			|| !isset($_COOKIE["oc_token"])
+			|| !isset($_COOKIE["oc_username"])
+			|| !$_COOKIE["oc_remember_login"])
+		{
 			return false;
 		}
 		OC_App::loadApps(array('authentication'));
 		if(defined("DEBUG") && DEBUG) {
-			OC_Log::write('core','Trying to login from cookie',OC_Log::DEBUG);
+			OC_Log::write('core', 'Trying to login from cookie', OC_Log::DEBUG);
 		}
 		// confirm credentials in cookie
 		if(isset($_COOKIE['oc_token']) && OC_User::userExists($_COOKIE['oc_username']) &&
-		OC_Preferences::getValue($_COOKIE['oc_username'], "login", "token") === $_COOKIE['oc_token']) {
+			OC_Preferences::getValue($_COOKIE['oc_username'], "login", "token") === $_COOKIE['oc_token'])
+		{
 			OC_User::setUserId($_COOKIE['oc_username']);
 			OC_Util::redirectToDefaultPage();
 		}
@@ -508,11 +531,16 @@ class OC{
 		|| ($_SESSION['sectoken']!=$_POST['sectoken']) ) {
 			return false;
 		}
+
 		OC_App::loadApps();
+
+		//setup extra user backends
+		OC_User::setupBackends();
+
 		if(OC_User::login($_POST["user"], $_POST["password"])) {
-			if(!empty($_POST["remember_login"])){
+			if(!empty($_POST["remember_login"])) {
 				if(defined("DEBUG") && DEBUG) {
-					OC_Log::write('core','Setting remember login to cookie', OC_Log::DEBUG);
+					OC_Log::write('core', 'Setting remember login to cookie', OC_Log::DEBUG);
 				}
 				$token = md5($_POST["user"].time().$_POST['password']);
 				OC_Preferences::setValue($_POST['user'], 'login', 'token', $token);
@@ -528,11 +556,11 @@ class OC{
 
 	protected static function tryBasicAuthLogin() {
 		if (!isset($_SERVER["PHP_AUTH_USER"])
-		 || !isset($_SERVER["PHP_AUTH_PW"])){
-		 	return false;
+		 || !isset($_SERVER["PHP_AUTH_PW"])) {
+			return false;
 		}
 		OC_App::loadApps(array('authentication'));
-		if (OC_User::login($_SERVER["PHP_AUTH_USER"],$_SERVER["PHP_AUTH_PW"]))	{
+		if (OC_User::login($_SERVER["PHP_AUTH_USER"], $_SERVER["PHP_AUTH_PW"])) {
 			//OC_Log::write('core',"Logged in with HTTP Authentication",OC_Log::DEBUG);
 			OC_User::unsetMagicInCookie();
 			$_REQUEST['redirect_url'] = (isset($_SERVER['REQUEST_URI'])?$_SERVER['REQUEST_URI']:'');
@@ -544,7 +572,7 @@ class OC{
 }
 
 // define runtime variables - unless this already has been done
-if( !isset( $RUNTIME_NOAPPS )){
+if( !isset( $RUNTIME_NOAPPS )) {
 	$RUNTIME_NOAPPS = false;
 }
 
@@ -554,7 +582,7 @@ if(!function_exists('get_temp_dir')) {
 		if( $temp=getenv('TMP') )        return $temp;
 		if( $temp=getenv('TEMP') )        return $temp;
 		if( $temp=getenv('TMPDIR') )    return $temp;
-		$temp=tempnam(__FILE__,'');
+		$temp=tempnam(__FILE__, '');
 		if (file_exists($temp)) {
 			unlink($temp);
 			return dirname($temp);
diff --git a/lib/cache.php b/lib/cache.php
index 55f189a5da8..62003793d5f 100644
--- a/lib/cache.php
+++ b/lib/cache.php
@@ -38,14 +38,14 @@ class OC_Cache {
 			if (!self::$global_cache_fast && function_exists('apc_store')) {
 				self::$global_cache_fast = new OC_Cache_APC(true);
 			}
-			
+
 			self::$global_cache = new OC_Cache_FileGlobal();
 			if (self::$global_cache_fast) {
 				self::$global_cache = new OC_Cache_Broker(self::$global_cache_fast, self::$global_cache);
 			}
 		}
-		if($fast){
-			if(self::$global_cache_fast){
+		if($fast) {
+			if(self::$global_cache_fast) {
 				return self::$global_cache_fast;
 			}else{
 				return false;
@@ -67,15 +67,15 @@ class OC_Cache {
 			if (!self::$user_cache_fast && function_exists('apc_store')) {
 				self::$user_cache_fast = new OC_Cache_APC();
 			}
-			
+
 			self::$user_cache = new OC_Cache_File();
 			if (self::$user_cache_fast) {
 				self::$user_cache = new OC_Cache_Broker(self::$user_cache_fast, self::$user_cache);
 			}
 		}
 
-		if($fast){
-			if(self::$user_cache_fast){
+		if($fast) {
+			if(self::$user_cache_fast) {
 				return self::$user_cache_fast;
 			}else{
 				return false;
@@ -138,7 +138,7 @@ class OC_Cache {
 	 * @return true
 	 */
 	static public function isFast() {
-		if(is_null(self::$isFast)){
+		if(is_null(self::$isFast)) {
 			self::$isFast=function_exists('xcache_set') || function_exists('apc_store');
 		}
 		return self::$isFast;
diff --git a/lib/cache/apc.php b/lib/cache/apc.php
index c192fe2f196..6dda0a0ff8c 100644
--- a/lib/cache/apc.php
+++ b/lib/cache/apc.php
@@ -43,7 +43,7 @@ class OC_Cache_APC {
 		return apc_delete($this->getNamespace().$key);
 	}
 
-	public function clear($prefix=''){
+	public function clear($prefix='') {
 		$ns = $this->getNamespace().$prefix;
 		$cache = apc_cache_info('user');
 		foreach($cache['cache_list'] as $entry) {
diff --git a/lib/cache/broker.php b/lib/cache/broker.php
index c2aceabaf53..a161dbfa3bb 100644
--- a/lib/cache/broker.php
+++ b/lib/cache/broker.php
@@ -46,7 +46,7 @@ class OC_Cache_Broker {
 		return $this->slow_cache->remove($key);
 	}
 
-	public function clear($prefix=''){
+	public function clear($prefix='') {
 		$this->fast_cache->clear($prefix);
 		$this->slow_cache->clear($prefix);
 	}
diff --git a/lib/cache/file.php b/lib/cache/file.php
index 562c3d17167..27d8b19f36e 100644
--- a/lib/cache/file.php
+++ b/lib/cache/file.php
@@ -8,16 +8,21 @@
 
 
 class OC_Cache_File{
+	protected $storage;
 	protected function getStorage() {
-		if(OC_User::isLoggedIn()){
+		if (isset($this->storage)) {
+			return $this->storage;
+		}
+		if(OC_User::isLoggedIn()) {
 			$subdir = 'cache';
 			$view = new OC_FilesystemView('/'.OC_User::getUser());
 			if(!$view->file_exists($subdir)) {
 				$view->mkdir($subdir);
 			}
-			return new OC_FilesystemView('/'.OC_User::getUser().'/'.$subdir);
+			$this->storage = new OC_FilesystemView('/'.OC_User::getUser().'/'.$subdir);
+			return $this->storage;
 		}else{
-			OC_Log::write('core','Can\'t get cache storage, user not logged in', OC_Log::ERROR);
+			OC_Log::write('core', 'Can\'t get cache storage, user not logged in', OC_Log::ERROR);
 			return false;
 		}
 	}
@@ -56,22 +61,43 @@ class OC_Cache_File{
 
 	public function remove($key) {
 		$storage = $this->getStorage();
-		if(!$storage){
+		if(!$storage) {
 			return false;
 		}
 		return $storage->unlink($key);
 	}
 
-	public function clear($prefix=''){
+	public function clear($prefix='') {
 		$storage = $this->getStorage();
-		if($storage and $storage->is_dir('/')){
+		if($storage and $storage->is_dir('/')) {
 			$dh=$storage->opendir('/');
-			while($file=readdir($dh)){
-				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)){
+			while($file=readdir($dh)) {
+				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
 					$storage->unlink('/'.$file);
 				}
 			}
 		}
 		return true;
 	}
+
+	public function gc() {
+		$storage = $this->getStorage();
+		if($storage and $storage->is_dir('/')) {
+			$now = time();
+			$dh=$storage->opendir('/');
+			while($file=readdir($dh)) {
+				if($file!='.' and $file!='..') {
+					$mtime = $storage->filemtime('/'.$file);
+					if ($mtime < $now) {
+						$storage->unlink('/'.$file);
+					}
+				}
+			}
+		}
+	}
+
+	public static function loginListener() {
+		$c = new self();
+		$c->gc();
+	}
 }
diff --git a/lib/cache/fileglobal.php b/lib/cache/fileglobal.php
index 1c2c9bdc82d..6d01964e185 100644
--- a/lib/cache/fileglobal.php
+++ b/lib/cache/fileglobal.php
@@ -8,7 +8,7 @@
 
 
 class OC_Cache_FileGlobal{
-	protected function getCacheDir() {
+	static protected function getCacheDir() {
 		$cache_dir = get_temp_dir().'/owncloud-'.OC_Util::getInstanceId().'/';
 		if (!is_dir($cache_dir)) {
 			mkdir($cache_dir);
@@ -23,7 +23,7 @@ class OC_Cache_FileGlobal{
 	public function get($key) {
 		$key = $this->fixKey($key);
 		if ($this->hasKey($key)) {
-			$cache_dir = $this->getCacheDir();
+			$cache_dir = self::getCacheDir();
 			return file_get_contents($cache_dir.$key);
 		}
 		return null;
@@ -31,7 +31,7 @@ class OC_Cache_FileGlobal{
 
 	public function set($key, $value, $ttl=0) {
 		$key = $this->fixKey($key);
-		$cache_dir = $this->getCacheDir();
+		$cache_dir = self::getCacheDir();
 		if ($cache_dir and file_put_contents($cache_dir.$key, $value)) {
 			if ($ttl === 0) {
 				$ttl = 86400; // 60*60*24
@@ -43,7 +43,7 @@ class OC_Cache_FileGlobal{
 
 	public function hasKey($key) {
 		$key = $this->fixKey($key);
-		$cache_dir = $this->getCacheDir();
+		$cache_dir = self::getCacheDir();
 		if ($cache_dir && is_file($cache_dir.$key)) {
 			$mtime = filemtime($cache_dir.$key);
 			if ($mtime < time()) {
@@ -56,23 +56,46 @@ class OC_Cache_FileGlobal{
 	}
 
 	public function remove($key) {
-		$cache_dir = $this->getCacheDir();
-		if(!$cache_dir){
+		$cache_dir = self::getCacheDir();
+		if(!$cache_dir) {
 			return false;
 		}
 		$key = $this->fixKey($key);
 		return unlink($cache_dir.$key);
 	}
 
-	public function clear(){
-		$cache_dir = $this->getCacheDir();
-		if($cache_dir and is_dir($cache_dir)){
+	public function clear($prefix='') {
+		$cache_dir = self::getCacheDir();
+		$prefix = $this->fixKey($prefix);
+		if($cache_dir and is_dir($cache_dir)) {
 			$dh=opendir($cache_dir);
-			while($file=readdir($dh)){
-				if($file!='.' and $file!='..'){
+			while($file=readdir($dh)) {
+				if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
 					unlink($cache_dir.$file);
 				}
 			}
 		}
 	}
+
+	static public function gc() {
+		$last_run = OC_AppConfig::getValue('core', 'global_cache_gc_lastrun', 0);
+		$now = time();
+		if (($now - $last_run) < 300) {
+			// only do cleanup every 5 minutes
+			return;
+		}
+		OC_AppConfig::setValue('core', 'global_cache_gc_lastrun', $now);
+		$cache_dir = self::getCacheDir();
+		if($cache_dir and is_dir($cache_dir)) {
+			$dh=opendir($cache_dir);
+			while($file=readdir($dh)) {
+				if($file!='.' and $file!='..') {
+					$mtime = filemtime($cache_dir.$file);
+					if ($mtime < $now) {
+						unlink($cache_dir.$file);
+					}
+				}
+			}
+		}
+	}
 }
diff --git a/lib/cache/xcache.php b/lib/cache/xcache.php
index 951f9b47545..cecdf46351c 100644
--- a/lib/cache/xcache.php
+++ b/lib/cache/xcache.php
@@ -28,10 +28,10 @@ class OC_Cache_XCache {
 	}
 
 	public function set($key, $value, $ttl=0) {
-		if($ttl>0){
-			return xcache_set($this->getNamespace().$key,$value,$ttl);
+		if($ttl>0) {
+			return xcache_set($this->getNamespace().$key, $value, $ttl);
 		}else{
-			return xcache_set($this->getNamespace().$key,$value);
+			return xcache_set($this->getNamespace().$key, $value);
 		}
 	}
 
@@ -43,7 +43,7 @@ class OC_Cache_XCache {
 		return xcache_unset($this->getNamespace().$key);
 	}
 
-	public function clear($prefix=''){
+	public function clear($prefix='') {
 		xcache_unset_by_prefix($this->getNamespace().$prefix);
 		return true;
 	}
diff --git a/lib/config.php b/lib/config.php
index 266d559126c..032d401264c 100644
--- a/lib/config.php
+++ b/lib/config.php
@@ -52,7 +52,7 @@ class OC_Config{
 	 * This function returns all keys saved in config.php. Please note that it
 	 * does not return the values.
 	 */
-	public static function getKeys(){
+	public static function getKeys() {
 		self::readData();
 
 		return array_keys( self::$cache );
@@ -67,10 +67,10 @@ class OC_Config{
 	 * This function gets the value from config.php. If it does not exist,
 	 * $default will be returned.
 	 */
-	public static function getValue( $key, $default = null ){
+	public static function getValue( $key, $default = null ) {
 		self::readData();
 
-		if( array_key_exists( $key, self::$cache )){
+		if( array_key_exists( $key, self::$cache )) {
 			return self::$cache[$key];
 		}
 
@@ -86,7 +86,7 @@ class OC_Config{
 	 * This function sets the value and writes the config.php. If the file can
 	 * not be written, false will be returned.
 	 */
-	public static function setValue( $key, $value ){
+	public static function setValue( $key, $value ) {
 		self::readData();
 
 		// Add change
@@ -105,10 +105,10 @@ class OC_Config{
 	 * This function removes a key from the config.php. If owncloud has no
 	 * write access to config.php, the function will return false.
 	 */
-	public static function deleteKey( $key ){
+	public static function deleteKey( $key ) {
 		self::readData();
 
-		if( array_key_exists( $key, self::$cache )){
+		if( array_key_exists( $key, self::$cache )) {
 			// Delete key from cache
 			unset( self::$cache[$key] );
 
@@ -125,18 +125,18 @@ class OC_Config{
 	 *
 	 * Reads the config file and saves it to the cache
 	 */
-	private static function readData(){
-		if( self::$init ){
+	private static function readData() {
+		if( self::$init ) {
 			return true;
 		}
 
-		if( !file_exists( OC::$SERVERROOT."/config/config.php" )){
+		if( !file_exists( OC::$SERVERROOT."/config/config.php" )) {
 			return false;
 		}
 
 		// Include the file, save the data from $CONFIG
-		include( OC::$SERVERROOT."/config/config.php" );
-		if( isset( $CONFIG ) && is_array( $CONFIG )){
+		include OC::$SERVERROOT."/config/config.php";
+		if( isset( $CONFIG ) && is_array( $CONFIG )) {
 			self::$cache = $CONFIG;
 		}
 
@@ -153,7 +153,7 @@ class OC_Config{
 	 * Saves the config to the config file.
 	 *
 	 */
-	public static function writeData(){
+	public static function writeData() {
 		// Create a php file ...
 		$content = "<?php\n\$CONFIG = ";
 		$content .= var_export(self::$cache, true);
@@ -164,7 +164,9 @@ class OC_Config{
 		$result=@file_put_contents( $filename, $content );
 		if(!$result) {
 			$tmpl = new OC_Template( '', 'error', 'guest' );
-			$tmpl->assign('errors',array(1=>array('error'=>"Can't write into config directory 'config'",'hint'=>"You can usually fix this by giving the webserver user write access to the config directory in owncloud")));
+			$tmpl->assign('errors', array(1=>array(
+				'error'=>"Can't write into config directory 'config'",
+				'hint'=>"You can usually fix this by giving the webserver user write access to the config directory in owncloud")));
 			$tmpl->printPage();
 			exit;
 		}
diff --git a/lib/connector/sabre/auth.php b/lib/connector/sabre/auth.php
index 99f696e3a07..0c34c7ea29f 100644
--- a/lib/connector/sabre/auth.php
+++ b/lib/connector/sabre/auth.php
@@ -30,13 +30,13 @@ class OC_Connector_Sabre_Auth extends Sabre_DAV_Auth_Backend_AbstractBasic {
 	 *
 	 * @return bool
 	 */
-	protected function validateUserPass($username, $password){
+	protected function validateUserPass($username, $password) {
 		if (OC_User::isLoggedIn()) {
 			OC_Util::setupFS($username);
 			return true;
 		} else {
 			OC_Util::setUpFS();//login hooks may need early access to the filesystem
-			if(OC_User::login($username,$password)){
+			if(OC_User::login($username, $password)) {
 				OC_Util::setUpFS($username);
 				return true;
 			}
@@ -45,4 +45,4 @@ class OC_Connector_Sabre_Auth extends Sabre_DAV_Auth_Backend_AbstractBasic {
 			}
 		}
 	}
-} 
+}
diff --git a/lib/connector/sabre/client.php b/lib/connector/sabre/client.php
index 7e8f21264f9..8df5fb9a9ad 100644
--- a/lib/connector/sabre/client.php
+++ b/lib/connector/sabre/client.php
@@ -1,173 +1,173 @@
-<?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_Connector_Sabre_Client extends Sabre_DAV_Client {

-	

-	protected $trustedCertificates;

-

-	/**

-	 * Add trusted root certificates to the webdav client.

-	 *

-	 * The parameter certificates should be a absulute path to a file which contains

-	 * all trusted certificates

-	 *

-	 * @param string $certificates

-	 */

-	public function addTrustedCertificates($certificates) {

-		$this->trustedCertificates = $certificates;

-	}

-	

-	/**

-	 * Copied from SabreDAV with some modification to use user defined curlSettings

-	 * Performs an actual HTTP request, and returns the result.

-	 *

-	 * If the specified url is relative, it will be expanded based on the base

-	 * url.

-	 *

-	 * The returned array contains 3 keys:

-	 *   * body - the response body

-	 *   * httpCode - a HTTP code (200, 404, etc)

-	 *   * headers - a list of response http headers. The header names have

-	 *     been lowercased.

-	 *

-	 * @param string $method

-	 * @param string $url

-	 * @param string $body

-	 * @param array $headers

-	 * @return array

-	 */

-	public function request($method, $url = '', $body = null, $headers = array()) {

-	

-		$url = $this->getAbsoluteUrl($url);

-	

-		$curlSettings = array(

-				CURLOPT_RETURNTRANSFER => true,

-				// Return headers as part of the response

-				CURLOPT_HEADER => true,

-				CURLOPT_POSTFIELDS => $body,

-				// Automatically follow redirects

-				CURLOPT_FOLLOWLOCATION => true,

-				CURLOPT_MAXREDIRS => 5,

-		);

-	

-		if($this->trustedCertificates) {

-			$curlSettings[CURLOPT_CAINFO] = $this->trustedCertificates;

-		}

-		

-		switch ($method) {

-			case 'HEAD' :

-	

-				// do not read body with HEAD requests (this is neccessary because cURL does not ignore the body with HEAD

-				// requests when the Content-Length header is given - which in turn is perfectly valid according to HTTP

-				// specs...) cURL does unfortunately return an error in this case ("transfer closed transfer closed with

-				// ... bytes remaining to read") this can be circumvented by explicitly telling cURL to ignore the

-				// response body

-				$curlSettings[CURLOPT_NOBODY] = true;

-				$curlSettings[CURLOPT_CUSTOMREQUEST] = 'HEAD';

-				break;

-	

-			default:

-				$curlSettings[CURLOPT_CUSTOMREQUEST] = $method;

-				break;

-	

-		}

-	

-		// Adding HTTP headers

-		$nHeaders = array();

-		foreach($headers as $key=>$value) {

-	

-			$nHeaders[] = $key . ': ' . $value;

-	

-		}

-		$curlSettings[CURLOPT_HTTPHEADER] = $nHeaders;

-	

-		if ($this->proxy) {

-			$curlSettings[CURLOPT_PROXY] = $this->proxy;

-		}

-	

-		if ($this->userName && $this->authType) {

-			$curlType = 0;

-			if ($this->authType & self::AUTH_BASIC) {

-				$curlType |= CURLAUTH_BASIC;

-			}

-			if ($this->authType & self::AUTH_DIGEST) {

-				$curlType |= CURLAUTH_DIGEST;

-			}

-			$curlSettings[CURLOPT_HTTPAUTH] = $curlType;

-			$curlSettings[CURLOPT_USERPWD] = $this->userName . ':' . $this->password;

-		}

-	

-		list(

-				$response,

-				$curlInfo,

-				$curlErrNo,

-				$curlError

-		) = $this->curlRequest($url, $curlSettings);

-	

-		$headerBlob = substr($response, 0, $curlInfo['header_size']);

-		$response = substr($response, $curlInfo['header_size']);

-	

-		// In the case of 100 Continue, or redirects we'll have multiple lists

-		// of headers for each separate HTTP response. We can easily split this

-		// because they are separated by \r\n\r\n

-		$headerBlob = explode("\r\n\r\n", trim($headerBlob, "\r\n"));

-	

-		// We only care about the last set of headers

-		$headerBlob = $headerBlob[count($headerBlob)-1];

-	

-		// Splitting headers

-		$headerBlob = explode("\r\n", $headerBlob);

-	

-		$headers = array();

-		foreach($headerBlob as $header) {

-			$parts = explode(':', $header, 2);

-			if (count($parts)==2) {

-				$headers[strtolower(trim($parts[0]))] = trim($parts[1]);

-			}

-		}

-	

-		$response = array(

-				'body' => $response,

-				'statusCode' => $curlInfo['http_code'],

-				'headers' => $headers

-		);

-	

-		if ($curlErrNo) {

-			throw new Sabre_DAV_Exception('[CURL] Error while making request: ' . $curlError . ' (error code: ' . $curlErrNo . ')');

-		}

-	

-		if ($response['statusCode']>=400) {

-			switch ($response['statusCode']) {

-				case 404:

-					throw new Sabre_DAV_Exception_NotFound('Resource ' . $url . ' not found.');

-					break;

-	

-				default:

-					throw new Sabre_DAV_Exception('HTTP error response. (errorcode ' . $response['statusCode'] . ')');

-			}

-		}

-	

-		return $response;

-	

-	}	

+<?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_Connector_Sabre_Client extends Sabre_DAV_Client {
+
+	protected $trustedCertificates;
+
+	/**
+	 * Add trusted root certificates to the webdav client.
+	 *
+	 * The parameter certificates should be a absulute path to a file which contains
+	 * all trusted certificates
+	 *
+	 * @param string $certificates
+	 */
+	public function addTrustedCertificates($certificates) {
+		$this->trustedCertificates = $certificates;
+	}
+
+	/**
+	 * Copied from SabreDAV with some modification to use user defined curlSettings
+	 * Performs an actual HTTP request, and returns the result.
+	 *
+	 * If the specified url is relative, it will be expanded based on the base
+	 * url.
+	 *
+	 * The returned array contains 3 keys:
+	 *   * body - the response body
+	 *   * httpCode - a HTTP code (200, 404, etc)
+	 *   * headers - a list of response http headers. The header names have
+	 *     been lowercased.
+	 *
+	 * @param string $method
+	 * @param string $url
+	 * @param string $body
+	 * @param array $headers
+	 * @return array
+	 */
+	public function request($method, $url = '', $body = null, $headers = array()) {
+
+		$url = $this->getAbsoluteUrl($url);
+
+		$curlSettings = array(
+				CURLOPT_RETURNTRANSFER => true,
+				// Return headers as part of the response
+				CURLOPT_HEADER => true,
+				CURLOPT_POSTFIELDS => $body,
+				// Automatically follow redirects
+				CURLOPT_FOLLOWLOCATION => true,
+				CURLOPT_MAXREDIRS => 5,
+		);
+
+		if($this->trustedCertificates) {
+			$curlSettings[CURLOPT_CAINFO] = $this->trustedCertificates;
+		}
+
+		switch ($method) {
+			case 'HEAD' :
+
+				// do not read body with HEAD requests (this is neccessary because cURL does not ignore the body with HEAD
+				// requests when the Content-Length header is given - which in turn is perfectly valid according to HTTP
+				// specs...) cURL does unfortunately return an error in this case ("transfer closed transfer closed with
+				// ... bytes remaining to read") this can be circumvented by explicitly telling cURL to ignore the
+				// response body
+				$curlSettings[CURLOPT_NOBODY] = true;
+				$curlSettings[CURLOPT_CUSTOMREQUEST] = 'HEAD';
+				break;
+
+			default:
+				$curlSettings[CURLOPT_CUSTOMREQUEST] = $method;
+				break;
+
+		}
+
+		// Adding HTTP headers
+		$nHeaders = array();
+		foreach($headers as $key=>$value) {
+
+			$nHeaders[] = $key . ': ' . $value;
+
+		}
+		$curlSettings[CURLOPT_HTTPHEADER] = $nHeaders;
+
+		if ($this->proxy) {
+			$curlSettings[CURLOPT_PROXY] = $this->proxy;
+		}
+
+		if ($this->userName && $this->authType) {
+			$curlType = 0;
+			if ($this->authType & self::AUTH_BASIC) {
+				$curlType |= CURLAUTH_BASIC;
+			}
+			if ($this->authType & self::AUTH_DIGEST) {
+				$curlType |= CURLAUTH_DIGEST;
+			}
+			$curlSettings[CURLOPT_HTTPAUTH] = $curlType;
+			$curlSettings[CURLOPT_USERPWD] = $this->userName . ':' . $this->password;
+		}
+
+		list(
+				$response,
+				$curlInfo,
+				$curlErrNo,
+				$curlError
+		) = $this->curlRequest($url, $curlSettings);
+
+		$headerBlob = substr($response, 0, $curlInfo['header_size']);
+		$response = substr($response, $curlInfo['header_size']);
+
+		// In the case of 100 Continue, or redirects we'll have multiple lists
+		// of headers for each separate HTTP response. We can easily split this
+		// because they are separated by \r\n\r\n
+		$headerBlob = explode("\r\n\r\n", trim($headerBlob, "\r\n"));
+
+		// We only care about the last set of headers
+		$headerBlob = $headerBlob[count($headerBlob)-1];
+
+		// Splitting headers
+		$headerBlob = explode("\r\n", $headerBlob);
+
+		$headers = array();
+		foreach($headerBlob as $header) {
+			$parts = explode(':', $header, 2);
+			if (count($parts)==2) {
+				$headers[strtolower(trim($parts[0]))] = trim($parts[1]);
+			}
+		}
+
+		$response = array(
+				'body' => $response,
+				'statusCode' => $curlInfo['http_code'],
+				'headers' => $headers
+		);
+
+		if ($curlErrNo) {
+			throw new Sabre_DAV_Exception('[CURL] Error while making request: ' . $curlError . ' (error code: ' . $curlErrNo . ')');
+		}
+
+		if ($response['statusCode']>=400) {
+			switch ($response['statusCode']) {
+				case 404:
+					throw new Sabre_DAV_Exception_NotFound('Resource ' . $url . ' not found.');
+					break;
+
+				default:
+					throw new Sabre_DAV_Exception('HTTP error response. (errorcode ' . $response['statusCode'] . ')');
+			}
+		}
+
+		return $response;
+
+	}
 }
\ No newline at end of file
diff --git a/lib/connector/sabre/directory.php b/lib/connector/sabre/directory.php
index cd3ed60292c..39606577f6d 100644
--- a/lib/connector/sabre/directory.php
+++ b/lib/connector/sabre/directory.php
@@ -60,7 +60,7 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 			}
 		} else {
 			$newPath = $this->path . '/' . $name;
-			OC_Filesystem::file_put_contents($newPath,$data);
+			OC_Filesystem::file_put_contents($newPath, $data);
 			return OC_Connector_Sabre_Node::getETagPropertyForPath($newPath);
 		}
 
@@ -119,7 +119,7 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 			$paths[] = $this->path.'/'.$info['name'];
 		}
 		$properties = array_fill_keys($paths, array());
-		if(count($paths)>0){
+		if(count($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($paths, OC_User::getUser()); // prepend userid
@@ -195,12 +195,10 @@ class OC_Connector_Sabre_Directory extends OC_Connector_Sabre_Node implements Sa
 	 */
 	public function getProperties($properties) {
 		$props = parent::getProperties($properties);
-		if (in_array(self::GETETAG_PROPERTYNAME, $properties)
-		    && !isset($props[self::GETETAG_PROPERTYNAME])) {
-			$props[self::GETETAG_PROPERTYNAME] =
-				OC_Connector_Sabre_Node::getETagPropertyForPath($this->path);
+		if (in_array(self::GETETAG_PROPERTYNAME, $properties) && !isset($props[self::GETETAG_PROPERTYNAME])) {
+			$props[self::GETETAG_PROPERTYNAME] 
+				= OC_Connector_Sabre_Node::getETagPropertyForPath($this->path);
 		}
 		return $props;
 	}
 }
-
diff --git a/lib/connector/sabre/file.php b/lib/connector/sabre/file.php
index 9d571fceb0d..5bd38240d44 100644
--- a/lib/connector/sabre/file.php
+++ b/lib/connector/sabre/file.php
@@ -126,4 +126,3 @@ class OC_Connector_Sabre_File extends OC_Connector_Sabre_Node implements Sabre_D
 
 	}
 }
-
diff --git a/lib/connector/sabre/locks.php b/lib/connector/sabre/locks.php
index 0ddc8b18d2f..dbcc57558e0 100644
--- a/lib/connector/sabre/locks.php
+++ b/lib/connector/sabre/locks.php
@@ -42,7 +42,7 @@ class OC_Connector_Sabre_Locks extends Sabre_DAV_Locks_Backend_Abstract {
 		// pure sql. MySQL's non-standard string concatination prevents us
 		// from doing this though.
 		// NOTE: SQLite requires time() to be inserted directly. That's ugly
-		// but otherwise reading locks from SQLite Databases will return 
+		// but otherwise reading locks from SQLite Databases will return
 		// nothing
 		$query = 'SELECT * FROM `*PREFIX*locks` WHERE `userid` = ? AND (`created` + `timeout`) > '.time().' AND (( `uri` = ?)';
 		$params = array(OC_User::getUser(),$uri);
@@ -75,9 +75,9 @@ class OC_Connector_Sabre_Locks extends Sabre_DAV_Locks_Backend_Abstract {
 
 		$stmt = OC_DB::prepare( $query );
 		$result = $stmt->execute( $params );
-		
+
 		$lockList = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 
 			$lockInfo = new Sabre_DAV_Locks_LockInfo();
 			$lockInfo->owner = $row['owner'];
@@ -114,7 +114,7 @@ class OC_Connector_Sabre_Locks extends Sabre_DAV_Locks_Backend_Abstract {
 		foreach($locks as $lock) {
 			if ($lock->token == $lockInfo->token) $exists = true;
 		}
-	
+
 		if ($exists) {
 			$query = OC_DB::prepare( 'UPDATE `*PREFIX*locks` SET `owner` = ?, `timeout` = ?, `scope` = ?, `depth` = ?, `uri` = ?, `created` = ? WHERE `userid` = ? AND `token` = ?' );
 			$result = $query->execute( array($lockInfo->owner,$lockInfo->timeout,$lockInfo->scope,$lockInfo->depth,$uri,$lockInfo->created,OC_User::getUser(),$lockInfo->token));
diff --git a/lib/connector/sabre/node.php b/lib/connector/sabre/node.php
index b9bf474a041..2916575e2d5 100644
--- a/lib/connector/sabre/node.php
+++ b/lib/connector/sabre/node.php
@@ -80,9 +80,9 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 		$oldPath = $this->path;
 
 		OC_Filesystem::rename($this->path,$newPath);
-	
+
 		$this->path = $newPath;
-		
+
 		$query = OC_DB::prepare( 'UPDATE `*PREFIX*properties` SET `propertypath` = ? WHERE `userid` = ? AND `propertypath` = ?' );
 		$query->execute( array( $newPath,OC_User::getUser(), $oldPath ));
 
@@ -123,8 +123,8 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 
 	}
 
-	/** 
-	 *  sets the last modification time of the file (mtime) to the value given 
+	/**
+	 *  sets the last modification time of the file (mtime) to the value given
 	 *  in the second parameter or to now if the second param is empty.
 	 *  Even if the modification time is set to a custom value the access time is set to now.
 	 */
@@ -145,7 +145,7 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 			$propertyName = preg_replace("/^{.*}/", "", $propertyName); // remove leading namespace from property name
 			// If it was null, we need to delete the property
 			if (is_null($propertyValue)) {
-				if(array_key_exists( $propertyName, $existing )){
+				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 ));
 				}
@@ -154,7 +154,7 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 				if( strcmp( $propertyName, "lastmodified") === 0) {
 					$this->touch($propertyValue);
 				} else {
-					if(!array_key_exists( $propertyName, $existing )){
+					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 ));
 					} else {
@@ -186,16 +186,16 @@ abstract class OC_Connector_Sabre_Node implements Sabre_DAV_INode, Sabre_DAV_IPr
 			$result = $query->execute( array( OC_User::getUser(), $this->path ));
 
 			$this->property_cache = array();
-			while( $row = $result->fetchRow()){
+			while( $row = $result->fetchRow()) {
 				$this->property_cache[$row['propertyname']] = $row['propertyvalue'];
 			}
 		}
 
 		// if the array was empty, we need to return everything
-		if(count($properties) == 0){
+		if(count($properties) == 0) {
 			return $this->property_cache;
 		}
-		
+
 		$props = array();
 		foreach($properties as $property) {
 			if (isset($this->property_cache[$property])) $props[$property] = $this->property_cache[$property];
diff --git a/lib/connector/sabre/principal.php b/lib/connector/sabre/principal.php
index d1456f7c642..ee95ae63306 100644
--- a/lib/connector/sabre/principal.php
+++ b/lib/connector/sabre/principal.php
@@ -66,7 +66,7 @@ class OC_Connector_Sabre_Principal implements Sabre_DAVACL_IPrincipalBackend {
 	 */
 	public function getGroupMemberSet($principal) {
 		// TODO: for now the group principal has only one member, the user itself
-		list($prefix,$name) = Sabre_DAV_URLUtil::splitPath($principal);
+		list($prefix, $name) = Sabre_DAV_URLUtil::splitPath($principal);
 
 		$principal = $this->getPrincipalByPath($prefix);
 		if (!$principal) throw new Sabre_DAV_Exception('Principal not found');
@@ -115,6 +115,12 @@ class OC_Connector_Sabre_Principal implements Sabre_DAVACL_IPrincipalBackend {
 	public function setGroupMemberSet($principal, array $members) {
 		throw new Sabre_DAV_Exception('Setting members of the group is not supported yet');
 	}
-	function updatePrincipal($path, $mutations){return 0;}
-	function searchPrincipals($prefixPath, array $searchProperties){return 0;}
+	
+	function updatePrincipal($path, $mutations) {
+		return 0;
+	}
+	
+	function searchPrincipals($prefixPath, array $searchProperties) {
+		return 0;
+	}
 }
diff --git a/lib/db.php b/lib/db.php
index 4214451c85f..ee69e5f8299 100644
--- a/lib/db.php
+++ b/lib/db.php
@@ -27,7 +27,7 @@
 class OC_DB {
 	const BACKEND_PDO=0;
 	const BACKEND_MDB2=1;
-	
+
 	static private $connection; //the prefered connection to use, either PDO or MDB2
 	static private $backend=null;
 	static private $MDB2=false;
@@ -41,35 +41,36 @@ class OC_DB {
 	 * check which backend we should use
 	 * @return BACKEND_MDB2 or BACKEND_PDO
 	 */
-	private static function getDBBackend(){
-		if(class_exists('PDO') && OC_Config::getValue('installed', false)){//check if we can use PDO, else use MDB2 (installation always needs to be done my mdb2)
+	private static function getDBBackend() {
+		//check if we can use PDO, else use MDB2 (installation always needs to be done my mdb2)
+		if(class_exists('PDO') && OC_Config::getValue('installed', false)) {
 			$type = OC_Config::getValue( "dbtype", "sqlite" );
 			if($type=='oci') { //oracle also always needs mdb2
 				return self::BACKEND_MDB2;
 			}
 			if($type=='sqlite3') $type='sqlite';
 			$drivers=PDO::getAvailableDrivers();
-			if(array_search($type,$drivers)!==false){
+			if(array_search($type, $drivers)!==false) {
 				return self::BACKEND_PDO;
 			}
 		}
 		return self::BACKEND_MDB2;
 	}
-	
+
 	/**
 	 * @brief connects to the database
 	 * @returns true if connection can be established or nothing (die())
 	 *
 	 * Connects to the database as specified in config.php
 	 */
-	public static function connect($backend=null){
-		if(self::$connection){
+	public static function connect($backend=null) {
+		if(self::$connection) {
 			return;
 		}
-		if(is_null($backend)){
+		if(is_null($backend)) {
 			$backend=self::getDBBackend();
 		}
-		if($backend==self::BACKEND_PDO){
+		if($backend==self::BACKEND_PDO) {
 			self::connectPDO();
 			self::$connection=self::$PDO;
 			self::$backend=self::BACKEND_PDO;
@@ -83,9 +84,9 @@ class OC_DB {
 	/**
 	 * connect to the database using pdo
 	 */
-	public static function connectPDO(){
-		if(self::$connection){
-			if(self::$backend==self::BACKEND_MDB2){
+	public static function connectPDO() {
+		if(self::$connection) {
+			if(self::$backend==self::BACKEND_MDB2) {
 				self::disconnect();
 			}else{
 				return;
@@ -97,18 +98,18 @@ class OC_DB {
 		$user = OC_Config::getValue( "dbuser", "" );
 		$pass = OC_Config::getValue( "dbpassword", "" );
 		$type = OC_Config::getValue( "dbtype", "sqlite" );
-		if(strpos($host,':')){
-			list($host,$port)=explode(':',$host,2);
+		if(strpos($host, ':')) {
+			list($host, $port)=explode(':', $host,2);
 		}else{
 			$port=false;
 		}
 		$opts = array();
 		$datadir=OC_Config::getValue( "datadirectory", OC::$SERVERROOT.'/data' );
-		
+
 		// do nothing if the connection already has been established
-		if(!self::$PDO){
+		if(!self::$PDO) {
 			// Add the dsn according to the database type
-			switch($type){
+			switch($type) {
 				case 'sqlite':
 					$dsn='sqlite2:'.$datadir.'/'.$name.'.db';
 					break;
@@ -116,7 +117,7 @@ class OC_DB {
 					$dsn='sqlite:'.$datadir.'/'.$name.'.db';
 					break;
 				case 'mysql':
-					if($port){
+					if($port) {
 						$dsn='mysql:dbname='.$name.';host='.$host.';port='.$port;
 					}else{
 						$dsn='mysql:dbname='.$name.';host='.$host;
@@ -124,7 +125,7 @@ class OC_DB {
 					$opts[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES 'UTF8'";
 					break;
 				case 'pgsql':
-					if($port){
+					if($port) {
 						$dsn='pgsql:dbname='.$name.';host='.$host.';port='.$port;
 					}else{
 						$dsn='pgsql:dbname='.$name.';host='.$host;
@@ -139,32 +140,32 @@ class OC_DB {
 					/** END OF FIX***/
 					break;
 				case 'oci': // Oracle with PDO is unsupported
-						if ($port) {
-								$dsn = 'oci:dbname=//' . $host . ':' . $port . '/' . $name;
-						} else {
-								$dsn = 'oci:dbname=//' . $host . '/' . $name;
-						}
-						break;
+					if ($port) {
+							$dsn = 'oci:dbname=//' . $host . ':' . $port . '/' . $name;
+					} else {
+							$dsn = 'oci:dbname=//' . $host . '/' . $name;
+					}
+					break;
 			}
 			try{
-				self::$PDO=new PDO($dsn,$user,$pass,$opts);
-			}catch(PDOException $e){
+				self::$PDO=new PDO($dsn, $user, $pass, $opts);
+			}catch(PDOException $e) {
 				echo( '<b>can not connect to database, using '.$type.'. ('.$e->getMessage().')</center>');
 				die();
 			}
 			// We always, really always want associative arrays
-			self::$PDO->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE,PDO::FETCH_ASSOC);
-			self::$PDO->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
+			self::$PDO->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+			self::$PDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
 		}
 		return true;
 	}
-	
+
 	/**
 	 * connect to the database using mdb2
 	 */
-	public static function connectMDB2(){
-		if(self::$connection){
-			if(self::$backend==self::BACKEND_PDO){
+	public static function connectMDB2() {
+		if(self::$connection) {
+			if(self::$backend==self::BACKEND_PDO) {
 				self::disconnect();
 			}else{
 				return;
@@ -180,9 +181,9 @@ class OC_DB {
 		$datadir=OC_Config::getValue( "datadirectory", "$SERVERROOT/data" );
 
 		// do nothing if the connection already has been established
-		if(!self::$MDB2){
+		if(!self::$MDB2) {
 			// Require MDB2.php (not required in the head of the file so we only load it when needed)
-			require_once('MDB2.php');
+			require_once 'MDB2.php';
 
 			// Prepare options array
 			$options = array(
@@ -193,7 +194,7 @@ class OC_DB {
 			  'quote_identifier' => true  );
 
 			// Add the dsn according to the database type
-			switch($type){
+			switch($type) {
 				case 'sqlite':
 				case 'sqlite3':
 					$dsn = array(
@@ -234,22 +235,22 @@ class OC_DB {
 					}
 					break;
 			}
-			
+
 			// Try to establish connection
 			self::$MDB2 = MDB2::factory( $dsn, $options );
-			
+
 			// Die if we could not connect
-			if( PEAR::isError( self::$MDB2 )){
+			if( PEAR::isError( self::$MDB2 )) {
 				echo( '<b>can not connect to database, using '.$type.'. ('.self::$MDB2->getUserInfo().')</center>');
-				OC_Log::write('core',self::$MDB2->getUserInfo(),OC_Log::FATAL);
-				OC_Log::write('core',self::$MDB2->getMessage(),OC_Log::FATAL);
+				OC_Log::write('core', self::$MDB2->getUserInfo(), OC_Log::FATAL);
+				OC_Log::write('core', self::$MDB2->getMessage(), OC_Log::FATAL);
 				die( $error );
 			}
-			
+
 			// We always, really always want associative arrays
 			self::$MDB2->setFetchMode(MDB2_FETCHMODE_ASSOC);
 		}
-		
+
 		// we are done. great!
 		return true;
 	}
@@ -261,8 +262,8 @@ class OC_DB {
 	 *
 	 * SQL query via MDB2 prepare(), needs to be execute()'d!
 	 */
-	static public function prepare( $query , $limit=null, $offset=null ){
-		
+	static public function prepare( $query , $limit=null, $offset=null ) {
+
 		if (!is_null($limit) && $limit != -1) {
 			if (self::$backend == self::BACKEND_MDB2) {
 				//MDB2 uses or emulates limits & offset internally
@@ -290,24 +291,24 @@ class OC_DB {
 
 		self::connect();
 		// return the result
-		if(self::$backend==self::BACKEND_MDB2){
+		if(self::$backend==self::BACKEND_MDB2) {
 			$result = self::$connection->prepare( $query );
 
 			// Die if we have an error (error means: bad query, not 0 results!)
 			if( PEAR::isError($result)) {
 				$entry = 'DB Error: "'.$result->getMessage().'"<br />';
 				$entry .= 'Offending command was: '.$query.'<br />';
-				OC_Log::write('core',$entry,OC_Log::FATAL);
+				OC_Log::write('core', $entry,OC_Log::FATAL);
 				error_log('DB error: '.$entry);
 				die( $entry );
 			}
 		}else{
 			try{
 				$result=self::$connection->prepare($query);
-			}catch(PDOException $e){
+			}catch(PDOException $e) {
 				$entry = 'DB Error: "'.$e->getMessage().'"<br />';
 				$entry .= 'Offending command was: '.$query.'<br />';
-				OC_Log::write('core',$entry,OC_Log::FATAL);
+				OC_Log::write('core', $entry,OC_Log::FATAL);
 				error_log('DB error: '.$entry);
 				die( $entry );
 			}
@@ -326,9 +327,9 @@ class OC_DB {
 	 * Call this method right after the insert command or other functions may
 	 * cause trouble!
 	 */
-	public static function insertid($table=null){
+	public static function insertid($table=null) {
 		self::connect();
-		if($table !== null){
+		if($table !== null) {
 			$prefix = OC_Config::getValue( "dbtableprefix", "oc_" );
 			$suffix = OC_Config::getValue( "dbsequencesuffix", "_id_seq" );
 			$table = str_replace( '*PREFIX*', $prefix, $table );
@@ -342,10 +343,10 @@ class OC_DB {
 	 *
 	 * This is good bye, good bye, yeah!
 	 */
-	public static function disconnect(){
+	public static function disconnect() {
 		// Cut connection if required
-		if(self::$connection){
-			if(self::$backend==self::BACKEND_MDB2){
+		if(self::$connection) {
+			if(self::$backend==self::BACKEND_MDB2) {
 				self::$connection->disconnect();
 			}
 			self::$connection=false;
@@ -363,7 +364,7 @@ class OC_DB {
 	 *
 	 * TODO: write more documentation
 	 */
-	public static function getDbStructure( $file ,$mode=MDB2_SCHEMA_DUMP_STRUCTURE){
+	public static function getDbStructure( $file ,$mode=MDB2_SCHEMA_DUMP_STRUCTURE) {
 		self::connectScheme();
 
 		// write the scheme
@@ -385,7 +386,7 @@ class OC_DB {
 	 *
 	 * TODO: write more documentation
 	 */
-	public static function createDbFromStructure( $file ){
+	public static function createDbFromStructure( $file ) {
 		$CONFIG_DBNAME  = OC_Config::getValue( "dbname", "owncloud" );
 		$CONFIG_DBTABLEPREFIX = OC_Config::getValue( "dbtableprefix", "oc_" );
 		$CONFIG_DBTYPE = OC_Config::getValue( "dbtype", "sqlite" );
@@ -394,7 +395,7 @@ class OC_DB {
 
 		// read file
 		$content = file_get_contents( $file );
-		
+
 		// Make changes and save them to an in-memory file
 		$file2 = 'static://db_scheme';
 		$content = str_replace( '*dbname*', $CONFIG_DBNAME, $content );
@@ -405,45 +406,46 @@ class OC_DB {
 		 * http://www.postgresql.org/docs/8.1/static/functions-datetime.html
 		 * http://www.sqlite.org/lang_createtable.html
 		 * http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions037.htm
+		 */
 
-		 if( $CONFIG_DBTYPE == 'pgsql' ){ //mysql support it too but sqlite doesn't
+		 if( $CONFIG_DBTYPE == 'pgsql' ) { //mysql support it too but sqlite doesn't
 				 $content = str_replace( '<default>0000-00-00 00:00:00</default>', '<default>CURRENT_TIMESTAMP</default>', $content );
 		 }
-		 */
+
 		file_put_contents( $file2, $content );
 
 		// Try to create tables
 		$definition = self::$schema->parseDatabaseDefinitionFile( $file2 );
-		
+
 		//clean up memory
 		unlink( $file2 );
 
 		// Die in case something went wrong
-		if( $definition instanceof MDB2_Schema_Error ){
+		if( $definition instanceof MDB2_Schema_Error ) {
 			die( $definition->getMessage().': '.$definition->getUserInfo());
 		}
-		if(OC_Config::getValue('dbtype','sqlite')==='oci'){
+		if(OC_Config::getValue('dbtype', 'sqlite')==='oci') {
 			unset($definition['charset']); //or MDB2 tries SHUTDOWN IMMEDIATE
 			$oldname = $definition['name'];
 			$definition['name']=OC_Config::getValue( "dbuser", $oldname );
 		}
-		
+
 		$ret=self::$schema->createDatabase( $definition );
 
 		// Die in case something went wrong
-		if( $ret instanceof MDB2_Error ){
+		if( $ret instanceof MDB2_Error ) {
 			echo (self::$MDB2->getDebugOutput());
 			die ($ret->getMessage() . ': ' . $ret->getUserInfo());
 		}
 
 		return true;
 	}
-	
+
 	/**
 	 * @brief update the database scheme
 	 * @param $file file to read structure from
 	 */
-	public static function updateDbFromStructure($file){
+	public static function updateDbFromStructure($file) {
 		$CONFIG_DBTABLEPREFIX = OC_Config::getValue( "dbtableprefix", "oc_" );
 		$CONFIG_DBTYPE = OC_Config::getValue( "dbtype", "sqlite" );
 
@@ -451,11 +453,11 @@ class OC_DB {
 
 		// read file
 		$content = file_get_contents( $file );
-		
+
 		$previousSchema = self::$schema->getDefinitionFromDatabase();
 		if (PEAR::isError($previousSchema)) {
 			$error = $previousSchema->getMessage();
-			OC_Log::write('core','Failed to get existing database structure for upgrading ('.$error.')',OC_Log::FATAL);
+			OC_Log::write('core', 'Failed to get existing database structure for upgrading ('.$error.')', OC_Log::FATAL);
 			return false;
 		}
 
@@ -469,20 +471,20 @@ class OC_DB {
 		 * http://www.postgresql.org/docs/8.1/static/functions-datetime.html
 		 * http://www.sqlite.org/lang_createtable.html
 		 * http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions037.htm
-		if( $CONFIG_DBTYPE == 'pgsql' ){ //mysql support it too but sqlite doesn't
+		if( $CONFIG_DBTYPE == 'pgsql' ) { //mysql support it too but sqlite doesn't
 			$content = str_replace( '<default>0000-00-00 00:00:00</default>', '<default>CURRENT_TIMESTAMP</default>', $content );
 		}
 		 */
 		file_put_contents( $file2, $content );
 		$op = self::$schema->updateDatabase($file2, $previousSchema, array(), false);
-		
+
 		//clean up memory
 		unlink( $file2 );
-		
+
 		if (PEAR::isError($op)) {
 			$error = $op->getMessage();
 			$detail = $op->getDebugInfo();
-			OC_Log::write('core','Failed to update database structure ('.$error.', '.$detail.')',OC_Log::FATAL);
+			OC_Log::write('core', 'Failed to update database structure ('.$error.', '.$detail.')', OC_Log::FATAL);
 			return false;
 		}
 		return true;
@@ -494,15 +496,15 @@ class OC_DB {
 	 *
 	 * Connects to a MDB2 database scheme
 	 */
-	private static function connectScheme(){
+	private static function connectScheme() {
 		// We need a mdb2 database connection
 		self::connectMDB2();
 		self::$MDB2->loadModule('Manager');
 		self::$MDB2->loadModule('Reverse');
 
 		// Connect if this did not happen before
-		if(!self::$schema){
-			require_once('MDB2/Schema.php');
+		if(!self::$schema) {
+			require_once 'MDB2/Schema.php';
 			self::$schema=MDB2_Schema::factory(self::$MDB2);
 		}
 
@@ -517,29 +519,29 @@ class OC_DB {
 	 * This function replaces *PREFIX* with the value of $CONFIG_DBTABLEPREFIX
 	 * and replaces the ` woth ' or " according to the database driver.
 	 */
-	private static function processQuery( $query ){
+	private static function processQuery( $query ) {
 		self::connect();
 		// We need Database type and table prefix
-		if(is_null(self::$type)){
+		if(is_null(self::$type)) {
 			self::$type=OC_Config::getValue( "dbtype", "sqlite" );
 		}
 		$type = self::$type;
-		if(is_null(self::$prefix)){
+		if(is_null(self::$prefix)) {
 			self::$prefix=OC_Config::getValue( "dbtableprefix", "oc_" );
 		}
 		$prefix = self::$prefix;
-		
+
 		// differences in escaping of table names ('`' for mysql) and getting the current timestamp
-		if( $type == 'sqlite' || $type == 'sqlite3' ){
+		if( $type == 'sqlite' || $type == 'sqlite3' ) {
 			$query = str_replace( '`', '"', $query );
-			$query = str_replace( 'NOW()', 'datetime(\'now\')', $query );
-			$query = str_replace( 'now()', 'datetime(\'now\')', $query );
-		}elseif( $type == 'pgsql' ){
+			$query = str_ireplace( 'NOW()', 'datetime(\'now\')', $query );
+			$query = str_ireplace( 'UNIX_TIMESTAMP()', 'strftime(\'%s\',\'now\')', $query );
+		}elseif( $type == 'pgsql' ) {
 			$query = str_replace( '`', '"', $query );
-		}elseif( $type == 'oci'  ){
+			$query = str_ireplace( 'UNIX_TIMESTAMP()', 'cast(extract(epoch from current_timestamp) as integer)', $query );
+		}elseif( $type == 'oci'  ) {
 			$query = str_replace( '`', '"', $query );
-			$query = str_replace( 'NOW()', 'CURRENT_TIMESTAMP', $query );
-			$query = str_replace( 'now()', 'CURRENT_TIMESTAMP', $query );
+			$query = str_ireplace( 'NOW()', 'CURRENT_TIMESTAMP', $query );
 		}
 
 		// replace table name prefix
@@ -547,22 +549,22 @@ class OC_DB {
 
 		return $query;
 	}
-	
+
 	/**
 	 * @brief drop a table
 	 * @param string $tableNamme the table to drop
 	 */
-	public static function dropTable($tableName){
+	public static function dropTable($tableName) {
 		self::connectMDB2();
 		self::$MDB2->loadModule('Manager');
 		self::$MDB2->dropTable($tableName);
 	}
-	
+
 	/**
 	 * remove all tables defined in a database structure xml file
 	 * @param string $file the xml file describing the tables
 	 */
-	public static function removeDBStructure($file){
+	public static function removeDBStructure($file) {
 		$CONFIG_DBNAME  = OC_Config::getValue( "dbname", "owncloud" );
 		$CONFIG_DBTABLEPREFIX = OC_Config::getValue( "dbtableprefix", "oc_" );
 		self::connectScheme();
@@ -578,42 +580,41 @@ class OC_DB {
 
 		// get the tables
 		$definition = self::$schema->parseDatabaseDefinitionFile( $file2 );
-		
+
 		// Delete our temporary file
 		unlink( $file2 );
 		$tables=array_keys($definition['tables']);
-		foreach($tables as $table){
+		foreach($tables as $table) {
 			self::dropTable($table);
 		}
 	}
-	
+
 	/**
 	 * @brief replaces the owncloud tables with a new set
 	 * @param $file string path to the MDB2 xml db export file
 	 */
-	public static function replaceDB( $file ){
-	 	$apps = OC_App::getAllApps();
-	 	self::beginTransaction();
-	 	// Delete the old tables
-	 	self::removeDBStructure( OC::$SERVERROOT . '/db_structure.xml' );
-	 	
-	 	foreach($apps as $app){
-	 		$path = OC_App::getAppPath($app).'/appinfo/database.xml';
-	 		if(file_exists($path)){
-	 			self::removeDBStructure( $path );	
-	 		}
-	 	}
-	 	
-	 	// Create new tables
-	 	self::createDBFromStructure( $file );
-	 	self::commit();
-	 	
-	 }
-	
+	public static function replaceDB( $file ) {
+		$apps = OC_App::getAllApps();
+		self::beginTransaction();
+		// Delete the old tables
+		self::removeDBStructure( OC::$SERVERROOT . '/db_structure.xml' );
+
+		foreach($apps as $app) {
+			$path = OC_App::getAppPath($app).'/appinfo/database.xml';
+			if(file_exists($path)) {
+				self::removeDBStructure( $path );
+			}
+		}
+
+		// Create new tables
+		self::createDBFromStructure( $file );
+		self::commit();
+	}
+
 	/**
 	 * Start a transaction
 	 */
-	public static function beginTransaction(){
+	public static function beginTransaction() {
 		self::connect();
 		if (self::$backend==self::BACKEND_MDB2 && !self::$connection->supports('transactions')) {
 			return false;
@@ -625,9 +626,9 @@ class OC_DB {
 	/**
 	 * Commit the database changes done during a transaction that is in progress
 	 */
-	public static function commit(){
+	public static function commit() {
 		self::connect();
-		if(!self::$inTransaction){
+		if(!self::$inTransaction) {
 			return false;
 		}
 		self::$connection->commit();
@@ -639,10 +640,10 @@ class OC_DB {
 	 * @param mixed $result
 	 * @return bool
 	 */
-	public static function isError($result){
-		if(!$result){
+	public static function isError($result) {
+		if(!$result) {
 			return true;
-		}elseif(self::$backend==self::BACKEND_MDB2 and PEAR::isError($result)){
+		}elseif(self::$backend==self::BACKEND_MDB2 and PEAR::isError($result)) {
 			return true;
 		}else{
 			return false;
@@ -657,31 +658,31 @@ class PDOStatementWrapper{
 	private $statement=null;
 	private $lastArguments=array();
 
-	public function __construct($statement){
+	public function __construct($statement) {
 		$this->statement=$statement;
 	}
-	
+
 	/**
 	 * make execute return the result instead of a bool
 	 */
-	public function execute($input=array()){
+	public function execute($input=array()) {
 		$this->lastArguments=$input;
-		if(count($input)>0){
+		if(count($input)>0) {
 			$result=$this->statement->execute($input);
 		}else{
 			$result=$this->statement->execute();
 		}
-		if($result){
+		if($result) {
 			return $this;
 		}else{
 			return false;
 		}
 	}
-	
+
 	/**
 	 * provide numRows
 	 */
-	public function numRows(){
+	public function numRows() {
 		$regex = '/^SELECT\s+(?:ALL\s+|DISTINCT\s+)?(?:.*?)\s+FROM\s+(.*)$/i';
 		if (preg_match($regex, $this->statement->queryString, $output) > 0) {
 			$query = OC_DB::prepare("SELECT COUNT(*) FROM {$output[1]}", PDO::FETCH_NUM);
@@ -690,28 +691,27 @@ class PDOStatementWrapper{
 			return $this->statement->rowCount();
 		}
 	}
-	
+
 	/**
 	 * provide an alias for fetch
 	 */
-	public function fetchRow(){
+	public function fetchRow() {
 		return $this->statement->fetch();
 	}
-	
+
 	/**
 	 * pass all other function directly to the PDOStatement
 	 */
-	public function __call($name,$arguments){
-		return call_user_func_array(array($this->statement,$name),$arguments);
+	public function __call($name,$arguments) {
+		return call_user_func_array(array($this->statement,$name), $arguments);
 	}
-	
+
 	/**
 	 * Provide a simple fetchOne.
 	 * fetch single column from the next row
 	 * @param int $colnum the column number to fetch
 	 */
-	public function fetchOne($colnum = 0){
+	public function fetchOne($colnum = 0) {
 		return $this->statement->fetchColumn($colnum);
 	}
 }
-
diff --git a/lib/eventsource.php b/lib/eventsource.php
index 95af2e471bc..900b5b101e6 100644
--- a/lib/eventsource.php
+++ b/lib/eventsource.php
@@ -30,19 +30,19 @@
 class OC_EventSource{
 	private $fallback;
 	private $fallBackId=0;
-	
-	public function __construct(){
+
+	public function __construct() {
 		@ob_end_clean();
 		header('Cache-Control: no-cache');
 		$this->fallback=isset($_GET['fallback']) and $_GET['fallback']=='true';
-		if($this->fallback){
+		if($this->fallback) {
 			$this->fallBackId=$_GET['fallback_id'];
 			header("Content-Type: text/html");
 			echo str_repeat('<span></span>'.PHP_EOL,10); //dummy data to keep IE happy
 		}else{
 			header("Content-Type: text/event-stream");
 		}
-		if( !OC_Util::isCallRegistered()){
+		if( !OC_Util::isCallRegistered()) {
 			exit();
 		}
 		flush();
@@ -56,16 +56,16 @@ class OC_EventSource{
 	 *
 	 * if only one paramater is given, a typeless message will be send with that paramater as data
 	 */
-	public function send($type,$data=null){
-		if(is_null($data)){
+	public function send($type,$data=null) {
+		if(is_null($data)) {
 			$data=$type;
 			$type=null;
 		}
-		if($this->fallback){
+		if($this->fallback) {
 			$response='<script type="text/javascript">window.parent.OC.EventSource.fallBackCallBack('.$this->fallBackId.',"'.$type.'",'.json_encode($data).')</script>'.PHP_EOL;
 			echo $response;
 		}else{
-			if($type){
+			if($type) {
 				echo 'event: '.$type.PHP_EOL;
 			}
 			echo 'data: '.json_encode($data).PHP_EOL;
@@ -77,7 +77,7 @@ class OC_EventSource{
 	/**
 	 * close the connection of the even source
 	 */
-	public function close(){
+	public function close() {
 		$this->send('__internal__','close');//server side closing can be an issue, let the client do it
 	}
 }
\ No newline at end of file
diff --git a/lib/filecache.php b/lib/filecache.php
index e85d6747f90..adcf97753ed 100644
--- a/lib/filecache.php
+++ b/lib/filecache.php
@@ -42,9 +42,9 @@ class OC_FileCache{
 	 * - encrypted
 	 * - versioned
 	 */
-	public static function get($path,$root=false){
-		if(OC_FileCache_Update::hasUpdated($path,$root)){
-			if($root===false){//filesystem hooks are only valid for the default root
+	public static function get($path,$root=false) {
+		if(OC_FileCache_Update::hasUpdated($path,$root)) {
+			if($root===false) {//filesystem hooks are only valid for the default root
 				OC_Hook::emit('OC_Filesystem','post_write',array('path'=>$path));
 			}else{
 				OC_FileCache_Update::update($path,$root);
@@ -61,37 +61,37 @@ class OC_FileCache{
 	 *
 	 * $data is an assiciative array in the same format as returned by get
 	 */
-	public static function put($path,$data,$root=false){
-		if($root===false){
+	public static function put($path,$data,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 		$fullpath=$root.$path;
 		$parent=self::getParentId($fullpath);
 		$id=self::getId($fullpath,'');
-		if(isset(OC_FileCache_Cached::$savedData[$fullpath])){
+		if(isset(OC_FileCache_Cached::$savedData[$fullpath])) {
 			$data=array_merge(OC_FileCache_Cached::$savedData[$fullpath],$data);
 			unset(OC_FileCache_Cached::$savedData[$fullpath]);
 		}
-		if($id!=-1){
+		if($id!=-1) {
 			self::update($id,$data);
 			return;
 		}
-		
+
 		// add parent directory to the file cache if it does not exist yet.
 		if ($parent == -1 && $fullpath != $root) {
 			$parentDir = substr(dirname($path), 0, strrpos(dirname($path), DIRECTORY_SEPARATOR));
 			self::scanFile($parentDir);
 			$parent = self::getParentId($fullpath);
 		}
-		
-		if(!isset($data['size']) or !isset($data['mtime'])){//save incomplete data for the next time we write it
+
+		if(!isset($data['size']) or !isset($data['mtime'])) {//save incomplete data for the next time we write it
 			OC_FileCache_Cached::$savedData[$fullpath]=$data;
 			return;
 		}
-		if(!isset($data['encrypted'])){
+		if(!isset($data['encrypted'])) {
 			$data['encrypted']=false;
 		}
-		if(!isset($data['versioned'])){
+		if(!isset($data['versioned'])) {
 			$data['versioned']=false;
 		}
 		$mimePart=dirname($data['mimetype']);
@@ -103,11 +103,11 @@ class OC_FileCache{
 		$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'],$data['versioned']));
-		if(OC_DB::isError($result)){
+		if(OC_DB::isError($result)) {
 			OC_Log::write('files','error while writing file('.$fullpath.') to cache',OC_Log::ERROR);
 		}
 
-		if($cache=OC_Cache::getUserCache(true)){
+		if($cache=OC_Cache::getUserCache(true)) {
 			$cache->remove('fileid/'.$fullpath);//ensure we don't have -1 cached
 		}
 	}
@@ -117,13 +117,13 @@ class OC_FileCache{
 	 * @param int $id
 	 * @param array $data
 	 */
-	private static function update($id,$data){
+	private static function update($id,$data) {
 		$arguments=array();
 		$queryParts=array();
-		foreach(array('size','mtime','ctime','mimetype','encrypted','versioned','writable') as $attribute){
-			if(isset($data[$attribute])){
+		foreach(array('size','mtime','ctime','mimetype','encrypted','versioned','writable') as $attribute) {
+			if(isset($data[$attribute])) {
 				//Convert to int it args are false
-				if($data[$attribute] === false){
+				if($data[$attribute] === false) {
 					$arguments[] = 0;
 				}else{
 					$arguments[] = $data[$attribute];
@@ -131,16 +131,16 @@ class OC_FileCache{
 				$queryParts[]='`'.$attribute.'`=?';
 			}
 		}
-		if(isset($data['mimetype'])){
+		if(isset($data['mimetype'])) {
 			$arguments[]=dirname($data['mimetype']);
 			$queryParts[]='`mimepart`=?';
 		}
 		$arguments[]=$id;
-		
+
 		$sql = 'UPDATE `*PREFIX*fscache` SET '.implode(' , ',$queryParts).' WHERE `id`=?';
 		$query=OC_DB::prepare($sql);
 		$result=$query->execute($arguments);
-		if(OC_DB::isError($result)){
+		if(OC_DB::isError($result)) {
 			OC_Log::write('files','error while updating file('.$id.') in cache',OC_Log::ERROR);
 		}
 	}
@@ -151,17 +151,21 @@ class OC_FileCache{
 	 * @param string newPath
 	 * @param string root (optional)
 	 */
-	public static function move($oldPath,$newPath,$root=false){
-		if($root===false){
+	public static function move($oldPath,$newPath,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
+		// If replacing an existing file, delete the file
+		if (self::inCache($newPath, $root)) {
+			self::delete($newPath, $root);
+		}
 		$oldPath=$root.$oldPath;
 		$newPath=$root.$newPath;
 		$newParent=self::getParentId($newPath);
 		$query=OC_DB::prepare('UPDATE `*PREFIX*fscache` SET `parent`=? ,`name`=?, `path`=?, `path_hash`=? WHERE `path_hash`=?');
 		$query->execute(array($newParent,basename($newPath),$newPath,md5($newPath),md5($oldPath)));
 
-		if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$oldPath)){
+		if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$oldPath)) {
 			$cache->set('fileid/'.$newPath,$cache->get('fileid/'.$oldPath));
 			$cache->remove('fileid/'.$oldPath);
 		}
@@ -169,12 +173,12 @@ class OC_FileCache{
 		$query=OC_DB::prepare('SELECT `path` FROM `*PREFIX*fscache` WHERE `path` LIKE ?');
 		$oldLength=strlen($oldPath);
 		$updateQuery=OC_DB::prepare('UPDATE `*PREFIX*fscache` SET `path`=?, `path_hash`=? WHERE `path_hash`=?');
-		while($row= $query->execute(array($oldPath.'/%'))->fetchRow()){
+		while($row= $query->execute(array($oldPath.'/%'))->fetchRow()) {
 			$old=$row['path'];
 			$new=$newPath.substr($old,$oldLength);
 			$updateQuery->execute(array($new,md5($new),md5($old)));
 
-			if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$old)){
+			if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$old)) {
 				$cache->set('fileid/'.$new,$cache->get('fileid/'.$old));
 				$cache->remove('fileid/'.$old);
 			}
@@ -186,20 +190,20 @@ class OC_FileCache{
 	 * @param string path
 	 * @param string root (optional)
 	 */
-	public static function delete($path,$root=false){
-		if($root===false){
+	public static function delete($path,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 		$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE `path_hash`=?');
 		$query->execute(array(md5($root.$path)));
-		
+
 		//delete everything inside the folder
 		$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE `path` LIKE ?');
 		$query->execute(array($root.$path.'/%'));
 
 		OC_Cache::remove('fileid/'.$root.$path);
 	}
-	
+
 	/**
 	 * return array of filenames matching the querty
 	 * @param string $query
@@ -207,20 +211,20 @@ class OC_FileCache{
 	 * @param string root (optional)
 	 * @return array of filepaths
 	 */
-	public static function search($search,$returnData=false,$root=false){
-		if($root===false){
+	public static function search($search,$returnData=false,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 		$rootLen=strlen($root);
-		if(!$returnData){
+		if(!$returnData) {
 			$query=OC_DB::prepare('SELECT `path` FROM `*PREFIX*fscache` WHERE `name` LIKE ? AND `user`=?');
 		}else{
 			$query=OC_DB::prepare('SELECT * FROM `*PREFIX*fscache` WHERE `name` LIKE ? AND `user`=?');
 		}
 		$result=$query->execute(array("%$search%",OC_User::getUser()));
 		$names=array();
-		while($row=$result->fetchRow()){
-			if(!$returnData){
+		while($row=$result->fetchRow()) {
+			if(!$returnData) {
 				$names[]=substr($row['path'],$rootLen);
 			}else{
 				$row['path']=substr($row['path'],$rootLen);
@@ -245,8 +249,8 @@ class OC_FileCache{
 	 * - encrypted
 	 * - versioned
 	 */
-	public static function getFolderContent($path,$root=false,$mimetype_filter=''){
-		if(OC_FileCache_Update::hasUpdated($path,$root,true)){
+	public static function getFolderContent($path,$root=false,$mimetype_filter='') {
+		if(OC_FileCache_Update::hasUpdated($path,$root,true)) {
 			OC_FileCache_Update::updateFolder($path,$root);
 		}
 		return OC_FileCache_Cached::getFolderContent($path,$root,$mimetype_filter);
@@ -258,7 +262,7 @@ class OC_FileCache{
 	 * @param string root (optional)
 	 * @return bool
 	 */
-	public static function inCache($path,$root=false){
+	public static function inCache($path,$root=false) {
 		return self::getId($path,$root)!=-1;
 	}
 
@@ -268,44 +272,44 @@ class OC_FileCache{
 	 * @param string root (optional)
 	 * @return int
 	 */
-	public static function getId($path,$root=false){
-		if($root===false){
+	public static function getId($path,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 
 		$fullPath=$root.$path;
-		if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$fullPath)){
+		if(($cache=OC_Cache::getUserCache(true)) && $cache->hasKey('fileid/'.$fullPath)) {
 			return $cache->get('fileid/'.$fullPath);
 		}
-		
+
 		$query=OC_DB::prepare('SELECT `id` FROM `*PREFIX*fscache` WHERE `path_hash`=?');
 		$result=$query->execute(array(md5($fullPath)));
-		if(OC_DB::isError($result)){
+		if(OC_DB::isError($result)) {
 			OC_Log::write('files','error while getting file id of '.$path,OC_Log::ERROR);
 			return -1;
 		}
-		
+
 		$result=$result->fetchRow();
-		if(is_array($result)){
+		if(is_array($result)) {
 			$id=$result['id'];
 		}else{
 			$id=-1;
 		}
-		if($cache=OC_Cache::getUserCache(true)){
+		if($cache=OC_Cache::getUserCache(true)) {
 			$cache->set('fileid/'.$fullPath,$id);
 		}
-		
+
 		return $id;
 	}
-	
+
 	/**
 	 * get the file path from the id, relative to the home folder of the user
 	 * @param int id
 	 * @param string user (optional)
 	 * @return string
 	 */
-	public static function getPath($id,$user=''){
-		if(!$user){
+	public static function getPath($id,$user='') {
+		if(!$user) {
 			$user=OC_User::getUser();
 		}
 		$query=OC_DB::prepare('SELECT `path` FROM `*PREFIX*fscache` WHERE `id`=? AND `user`=?');
@@ -313,7 +317,7 @@ class OC_FileCache{
 		$row=$result->fetchRow();
 		$path=$row['path'];
 		$root='/'.$user.'/files';
-		if(substr($path,0,strlen($root))!=$root){
+		if(substr($path,0,strlen($root))!=$root) {
 			return false;
 		}
 		return substr($path,strlen($root));
@@ -324,24 +328,24 @@ class OC_FileCache{
 	 * @param string $path
 	 * @return int
 	 */
-	private static function getParentId($path){
-		if($path=='/'){
+	private static function getParentId($path) {
+		if($path=='/') {
 			return -1;
 		}else{
 			return self::getId(dirname($path),'');
 		}
 	}
-	
+
 	/**
 	 * adjust the size of the parent folders
 	 * @param string $path
 	 * @param int $sizeDiff
 	 * @param string root (optinal)
 	 */
-	public static function increaseSize($path,$sizeDiff, $root=false){
+	public static function increaseSize($path,$sizeDiff, $root=false) {
 		if($sizeDiff==0) return;
 		$id=self::getId($path,$root);
-		while($id!=-1){//walk up the filetree increasing the size of all parent folders
+		while($id!=-1) {//walk up the filetree increasing the size of all parent folders
 			$query=OC_DB::prepare('UPDATE `*PREFIX*fscache` SET `size`=`size`+? WHERE `id`=?');
 			$query->execute(array($sizeDiff,$id));
 			$id=self::getParentId($path);
@@ -356,8 +360,8 @@ class OC_FileCache{
 	 * @param int count (optional)
 	 * @param string root (optional)
 	 */
-	public static function scan($path,$eventSource=false,&$count=0,$root=false){
-		if($eventSource){
+	public static function scan($path,$eventSource=false,&$count=0,$root=false) {
+		if($eventSource) {
 			$eventSource->send('scanning',array('file'=>$path,'count'=>$count));
 		}
 		$lastSend=$count;
@@ -365,7 +369,7 @@ class OC_FileCache{
 		if (substr($path, 0, 7) == '/Shared') {
 			return;
 		}
-		if($root===false){
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
@@ -373,16 +377,16 @@ class OC_FileCache{
 		self::scanFile($path,$root);
 		$dh=$view->opendir($path.'/');
 		$totalSize=0;
-		if($dh){
+		if($dh) {
 			while (($filename = readdir($dh)) !== false) {
-				if($filename != '.' and $filename != '..'){
+				if($filename != '.' and $filename != '..') {
 					$file=$path.'/'.$filename;
-					if($view->is_dir($file.'/')){
+					if($view->is_dir($file.'/')) {
 						self::scan($file,$eventSource,$count,$root);
 					}else{
 						$totalSize+=self::scanFile($file,$root);
 						$count++;
-						if($count>$lastSend+25 and $eventSource){
+						if($count>$lastSend+25 and $eventSource) {
 							$lastSend=$count;
 							$eventSource->send('scanning',array('file'=>$path,'count'=>$count));
 						}
@@ -390,7 +394,7 @@ class OC_FileCache{
 				}
 			}
 		}
-		
+
 		OC_FileCache_Update::cleanFolder($path,$root);
 		self::increaseSize($path,$totalSize,$root);
 	}
@@ -401,12 +405,12 @@ class OC_FileCache{
 	 * @param string root (optional)
 	 * @return int size of the scanned file
 	 */
-	public static function scanFile($path,$root=false){
+	public static function scanFile($path,$root=false) {
 		// NOTE: Ugly hack to prevent shared files from going into the cache (the source already exists somewhere in the cache)
 		if (substr($path, 0, 7) == '/Shared') {
 			return;
 		}
-		if($root===false){
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
@@ -415,14 +419,14 @@ class OC_FileCache{
 		clearstatcache();
 		$mimetype=$view->getMimeType($path);
 		$stat=$view->stat($path);
-		if($mimetype=='httpd/unix-directory'){
+		if($mimetype=='httpd/unix-directory') {
 			$writable=$view->is_writable($path.'/');
 		}else{
 			$writable=$view->is_writable($path);
 		}
 		$stat['mimetype']=$mimetype;
 		$stat['writable']=$writable;
-		if($path=='/'){
+		if($path=='/') {
 			$path='';
 		}
 		self::put($path,$stat,$root);
@@ -442,14 +446,14 @@ class OC_FileCache{
 	 * seccond mimetype part can be ommited
 	 * e.g. searchByMime('audio')
 	 */
-	public static function searchByMime($part1,$part2=null,$root=false){
-		if($root===false){
+	public static function searchByMime($part1,$part2=null,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 		$rootLen=strlen($root);
 		$root .= '%';
 		$user=OC_User::getUser();
-		if(!$part2){
+		if(!$part2) {
 			$query=OC_DB::prepare('SELECT `path` FROM `*PREFIX*fscache` WHERE `mimepart`=? AND `user`=? AND `path` LIKE ?');
 			$result=$query->execute(array($part1,$user, $root));
 		}else{
@@ -457,7 +461,7 @@ class OC_FileCache{
 			$result=$query->execute(array($part1.'/'.$part2,$user, $root));
 		}
 		$names=array();
-		while($row=$result->fetchRow()){
+		while($row=$result->fetchRow()) {
 			$names[]=substr($row['path'],$rootLen);
 		}
 		return $names;
@@ -466,10 +470,24 @@ class OC_FileCache{
 	/**
 	 * clean old pre-path_hash entries
 	 */
-	public static function clean(){
+	public static function clean() {
 		$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE LENGTH(`path_hash`)<30');
 		$query->execute();
 	}
+
+	/**
+	 * clear filecache entries
+	 * @param string user (optonal)
+	 */
+	public static function clear($user='') {
+		if($user) {
+			$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE user=?');
+			$query->execute(array($user));
+		}else{
+			$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache`');
+			$query->execute();
+		}
+	}
 }
 
 //watch for changes and try to keep the cache up to date
diff --git a/lib/filecache/cached.php b/lib/filecache/cached.php
index 95cc0ac300e..4e8ff23793e 100644
--- a/lib/filecache/cached.php
+++ b/lib/filecache/cached.php
@@ -12,21 +12,21 @@
  */
 class OC_FileCache_Cached{
 	public static $savedData=array();
-	
-	public static function get($path,$root=false){
-		if($root===false){
+
+	public static function get($path,$root=false) {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
 		$path=$root.$path;
 		$query=OC_DB::prepare('SELECT `path`,`ctime`,`mtime`,`mimetype`,`size`,`encrypted`,`versioned`,`writable` FROM `*PREFIX*fscache` WHERE `path_hash`=?');
 		$result=$query->execute(array(md5($path)))->fetchRow();
-		if(is_array($result)){
-			if(isset(self::$savedData[$path])){
-				$result=array_merge($result,self::$savedData[$path]);
+		if(is_array($result)) {
+			if(isset(self::$savedData[$path])) {
+				$result=array_merge($result, self::$savedData[$path]);
 			}
 			return $result;
 		}else{
-			if(isset(self::$savedData[$path])){
+			if(isset(self::$savedData[$path])) {
 				return self::$savedData[$path];
 			}else{
 				return array();
@@ -50,20 +50,20 @@ class OC_FileCache_Cached{
 	 * - encrypted
 	 * - versioned
 	 */
-	public static function getFolderContent($path,$root=false,$mimetype_filter=''){
-		if($root===false){
+	public static function getFolderContent($path,$root=false,$mimetype_filter='') {
+		if($root===false) {
 			$root=OC_Filesystem::getRoot();
 		}
-		$parent=OC_FileCache::getId($path,$root);
-		if($parent==-1){
+		$parent=OC_FileCache::getId($path, $root);
+		if($parent==-1) {
 			return array();
 		}
 		$query=OC_DB::prepare('SELECT `id`,`path`,`name`,`ctime`,`mtime`,`mimetype`,`size`,`encrypted`,`versioned`,`writable` FROM `*PREFIX*fscache` WHERE `parent`=? AND (`mimetype` LIKE ? OR `mimetype` = ?)');
 		$result=$query->execute(array($parent, $mimetype_filter.'%', 'httpd/unix-directory'))->fetchAll();
-		if(is_array($result)){
+		if(is_array($result)) {
 			return $result;
 		}else{
-			OC_Log::write('files','getFolderContent(): file not found in cache ('.$path.')',OC_Log::DEBUG);
+			OC_Log::write('files', 'getFolderContent(): file not found in cache ('.$path.')', OC_Log::DEBUG);
 			return false;
 		}
 	}
diff --git a/lib/filecache/update.php b/lib/filecache/update.php
index 0b5ff8e2446..2b64a2a90ff 100644
--- a/lib/filecache/update.php
+++ b/lib/filecache/update.php
@@ -18,50 +18,50 @@ class OC_FileCache_Update{
 	 * @param boolean folder
 	 * @return bool
 	 */
-	public static function hasUpdated($path,$root=false,$folder=false){
-		if($root===false){
+	public static function hasUpdated($path,$root=false,$folder=false) {
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
 		}
-		if(!$view->file_exists($path)){
+		if(!$view->file_exists($path)) {
 			return false;
 		}
-		$cachedData=OC_FileCache_Cached::get($path,$root);
-		if(isset($cachedData['mtime'])){
+		$cachedData=OC_FileCache_Cached::get($path, $root);
+		if(isset($cachedData['mtime'])) {
 			$cachedMTime=$cachedData['mtime'];
-			if($folder){
-				return $view->hasUpdated($path.'/',$cachedMTime);
+			if($folder) {
+				return $view->hasUpdated($path.'/', $cachedMTime);
 			}else{
-				return $view->hasUpdated($path,$cachedMTime);
+				return $view->hasUpdated($path, $cachedMTime);
 			}
 		}else{//file not in cache, so it has to be updated
-			if(($path=='/' or $path=='') and $root===false){//dont auto update the home folder, it will be scanned
+			if(($path=='/' or $path=='') and $root===false) {//dont auto update the home folder, it will be scanned
 				return false;
 			}
 			return true;
 		}
 	}
-	
+
 	/**
 	 * delete non existing files from the cache
 	 */
-	public static function cleanFolder($path,$root=false){
-		if($root===false){
+	public static function cleanFolder($path,$root=false) {
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
 		}
 
 		$cachedContent=OC_FileCache_Cached::getFolderContent($path,$root);
-		foreach($cachedContent as $fileData){
+		foreach($cachedContent as $fileData) {
 			$path=$fileData['path'];
 			$file=$view->getRelativePath($path);
-			if(!$view->file_exists($file)){
-				if($root===false){//filesystem hooks are only valid for the default root
-					OC_Hook::emit('OC_Filesystem','post_delete',array('path'=>$file));
+			if(!$view->file_exists($file)) {
+				if($root===false) {//filesystem hooks are only valid for the default root
+					OC_Hook::emit('OC_Filesystem', 'post_delete', array('path'=>$file));
 				}else{
-					self::delete($file,$root);
+					self::delete($file, $root);
 				}
 			}
 		}
@@ -72,35 +72,35 @@ class OC_FileCache_Update{
 	 * @param string path
 	 * @param string root (optional)
 	 */
-	public static function updateFolder($path,$root=false){
-		if($root===false){
+	public static function updateFolder($path,$root=false) {
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
 		}
 		$dh=$view->opendir($path.'/');
-		if($dh){//check for changed/new files
+		if($dh) {//check for changed/new files
 			while (($filename = readdir($dh)) !== false) {
-				if($filename != '.' and $filename != '..'){
+				if($filename != '.' and $filename != '..') {
 					$file=$path.'/'.$filename;
-					if(self::hasUpdated($file,$root)){
-						if($root===false){//filesystem hooks are only valid for the default root
-							OC_Hook::emit('OC_Filesystem','post_write',array('path'=>$file));
+					if(self::hasUpdated($file, $root)) {
+						if($root===false) {//filesystem hooks are only valid for the default root
+							OC_Hook::emit('OC_Filesystem', 'post_write', array('path'=>$file));
 						}else{
-							self::update($file,$root);
+							self::update($file, $root);
 						}
 					}
 				}
 			}
 		}
 
-		self::cleanFolder($path,$root);
+		self::cleanFolder($path, $root);
 
 		//update the folder last, so we can calculate the size correctly
-		if($root===false){//filesystem hooks are only valid for the default root
-			OC_Hook::emit('OC_Filesystem','post_write',array('path'=>$path));
+		if($root===false) {//filesystem hooks are only valid for the default root
+			OC_Hook::emit('OC_Filesystem', 'post_write', array('path'=>$path));
 		}else{
-			self::update($path,$root);
+			self::update($path, $root);
 		}
 	}
 
@@ -109,7 +109,7 @@ class OC_FileCache_Update{
 	 * @param array $params
 	 * @param string root (optional)
 	 */
-	public static function fileSystemWatcherWrite($params){
+	public static function fileSystemWatcherWrite($params) {
 		$path=$params['path'];
 		self::update($path);
 	}
@@ -119,7 +119,7 @@ class OC_FileCache_Update{
 	 * @param array $params
 	 * @param string root (optional)
 	 */
-	public static function fileSystemWatcherDelete($params){
+	public static function fileSystemWatcherDelete($params) {
 		$path=$params['path'];
 		self::delete($path);
 	}
@@ -129,10 +129,10 @@ class OC_FileCache_Update{
 	 * @param array $params
 	 * @param string root (optional)
 	 */
-	public static function fileSystemWatcherRename($params){
+	public static function fileSystemWatcherRename($params) {
 		$oldPath=$params['oldpath'];
 		$newPath=$params['newpath'];
-		self::rename($oldPath,$newPath);
+		self::rename($oldPath, $newPath);
 	}
 
 	/**
@@ -140,38 +140,38 @@ class OC_FileCache_Update{
 	 * @param string path
 	 * @param string root (optional)
 	 */
-	public static function update($path,$root=false){
-		if($root===false){
+	public static function update($path,$root=false) {
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
 		}
 
 		$mimetype=$view->getMimeType($path);
-		
+
 		$size=0;
 		$cached=OC_FileCache_Cached::get($path,$root);
 		$cachedSize=isset($cached['size'])?$cached['size']:0;
 
-		if($view->is_dir($path.'/')){
-			if(OC_FileCache::inCache($path,$root)){
-				$cachedContent=OC_FileCache_Cached::getFolderContent($path,$root);
-				foreach($cachedContent as $file){
+		if($view->is_dir($path.'/')) {
+			if(OC_FileCache::inCache($path, $root)) {
+				$cachedContent=OC_FileCache_Cached::getFolderContent($path, $root);
+				foreach($cachedContent as $file) {
 					$size+=$file['size'];
 				}
 				$mtime=$view->filemtime($path.'/');
 				$ctime=$view->filectime($path.'/');
 				$writable=$view->is_writable($path.'/');
-				OC_FileCache::put($path,array('size'=>$size,'mtime'=>$mtime,'ctime'=>$ctime,'mimetype'=>$mimetype,'writable'=>$writable));
+				OC_FileCache::put($path, array('size'=>$size,'mtime'=>$mtime,'ctime'=>$ctime,'mimetype'=>$mimetype,'writable'=>$writable));
 			}else{
 				$count=0;
-				OC_FileCache::scan($path,null,$count,$root);
+				OC_FileCache::scan($path, null, $count, $root);
 				return; //increaseSize is already called inside scan
 			}
 		}else{
-			$size=OC_FileCache::scanFile($path,$root);
+			$size=OC_FileCache::scanFile($path, $root);
 		}
-		OC_FileCache::increaseSize(dirname($path),$size-$cachedSize,$root);
+		OC_FileCache::increaseSize(dirname($path), $size-$cachedSize, $root);
 	}
 
 	/**
@@ -179,14 +179,14 @@ class OC_FileCache_Update{
 	 * @param string path
 	 * @param string root (optional)
 	 */
-	public static function delete($path,$root=false){
-		$cached=OC_FileCache_Cached::get($path,$root);
-		if(!isset($cached['size'])){
+	public static function delete($path,$root=false) {
+		$cached=OC_FileCache_Cached::get($path, $root);
+		if(!isset($cached['size'])) {
 			return;
 		}
 		$size=$cached['size'];
-		OC_FileCache::increaseSize(dirname($path),-$size,$root);
-		OC_FileCache::delete($path,$root);
+		OC_FileCache::increaseSize(dirname($path), -$size, $root);
+		OC_FileCache::delete($path, $root);
 	}
 
 	/**
@@ -195,20 +195,20 @@ class OC_FileCache_Update{
 	 * @param string newPath
 	 * @param string root (optional)
 	 */
-	public static function rename($oldPath,$newPath,$root=false){
-		if(!OC_FileCache::inCache($oldPath,$root)){
+	public static function rename($oldPath,$newPath,$root=false) {
+		if(!OC_FileCache::inCache($oldPath, $root)) {
 			return;
 		}
-		if($root===false){
+		if($root===false) {
 			$view=OC_Filesystem::getView();
 		}else{
 			$view=new OC_FilesystemView($root);
 		}
 
-		$cached=OC_FileCache_Cached::get($oldPath,$root);
+		$cached=OC_FileCache_Cached::get($oldPath, $root);
 		$oldSize=$cached['size'];
-		OC_FileCache::increaseSize(dirname($oldPath),-$oldSize,$root);
-		OC_FileCache::increaseSize(dirname($newPath),$oldSize,$root);
-		OC_FileCache::move($oldPath,$newPath);
+		OC_FileCache::increaseSize(dirname($oldPath), -$oldSize, $root);
+		OC_FileCache::increaseSize(dirname($newPath), $oldSize, $root);
+		OC_FileCache::move($oldPath, $newPath);
 	}
 }
\ No newline at end of file
diff --git a/lib/fileproxy.php b/lib/fileproxy.php
index ec04faa9bc5..17380c656a3 100644
--- a/lib/fileproxy.php
+++ b/lib/fileproxy.php
@@ -43,7 +43,7 @@
 class OC_FileProxy{
 	private static $proxies=array();
 	public static $enabled=true;
-	
+
 	/**
 	 * fallback function when a proxy operation is not implemented
 	 * @param string $function the name of the proxy operation
@@ -51,45 +51,45 @@ class OC_FileProxy{
 	 *
 	 * this implements a dummy proxy for all operations
 	 */
-	public function __call($function,$arguments){
-		if(substr($function,0,3)=='pre'){
+	public function __call($function,$arguments) {
+		if(substr($function,0,3)=='pre') {
 			return true;
 		}else{
 			return $arguments[1];
 		}
 	}
-	
+
 	/**
 	 * register a proxy to be used
 	 * @param OC_FileProxy $proxy
 	 */
-	public static function register($proxy){
+	public static function register($proxy) {
 		self::$proxies[]=$proxy;
 	}
-	
-	public static function getProxies($operation){
+
+	public static function getProxies($operation) {
 		$proxies=array();
-		foreach(self::$proxies as $proxy){
-			if(method_exists($proxy,$operation)){
+		foreach(self::$proxies as $proxy) {
+			if(method_exists($proxy,$operation)) {
 				$proxies[]=$proxy;
 			}
 		}
 		return $proxies;
 	}
 
-	public static function runPreProxies($operation,&$filepath,&$filepath2=null){
-		if(!self::$enabled){
+	public static function runPreProxies($operation,&$filepath,&$filepath2=null) {
+		if(!self::$enabled) {
 			return true;
 		}
 		$operation='pre'.$operation;
 		$proxies=self::getProxies($operation);
-		foreach($proxies as $proxy){
-			if(!is_null($filepath2)){
-				if($proxy->$operation($filepath,$filepath2)===false){
+		foreach($proxies as $proxy) {
+			if(!is_null($filepath2)) {
+				if($proxy->$operation($filepath,$filepath2)===false) {
 					return false;
 				}
 			}else{
-				if($proxy->$operation($filepath)===false){
+				if($proxy->$operation($filepath)===false) {
 					return false;
 				}
 			}
@@ -97,19 +97,19 @@ class OC_FileProxy{
 		return true;
 	}
 
-	public static function runPostProxies($operation,$path,$result){
-		if(!self::$enabled){
+	public static function runPostProxies($operation,$path,$result) {
+		if(!self::$enabled) {
 			return $result;
 		}
 		$operation='post'.$operation;
 		$proxies=self::getProxies($operation);
-		foreach($proxies as $proxy){
+		foreach($proxies as $proxy) {
 			$result=$proxy->$operation($path,$result);
 		}
 		return $result;
 	}
 
-	public static function clearProxies(){
+	public static function clearProxies() {
 		self::$proxies=array();
 	}
 }
diff --git a/lib/fileproxy/quota.php b/lib/fileproxy/quota.php
index 7316224cc61..adbff3d301a 100644
--- a/lib/fileproxy/quota.php
+++ b/lib/fileproxy/quota.php
@@ -27,33 +27,33 @@
 
 class OC_FileProxy_Quota extends OC_FileProxy{
 	private $userQuota=-1;
-	
+
 	/**
 	 * get the quota for the current user
 	 * @return int
 	 */
-	private function getQuota(){
-		if($this->userQuota!=-1){
+	private function getQuota() {
+		if($this->userQuota!=-1) {
 			return $this->userQuota;
 		}
 		$userQuota=OC_Preferences::getValue(OC_User::getUser(),'files','quota','default');
-		if($userQuota=='default'){
+		if($userQuota=='default') {
 			$userQuota=OC_AppConfig::getValue('files','default_quota','none');
 		}
-		if($userQuota=='none'){
+		if($userQuota=='none') {
 			$this->userQuota=0;
 		}else{
 			$this->userQuota=OC_Helper::computerFileSize($userQuota);
 		}
 		return $this->userQuota;
-		
+
 	}
-	
+
 	/**
 	 * get the free space in the users home folder
 	 * @return int
 	 */
-	private function getFreeSpace(){
+	private function getFreeSpace() {
 		$rootInfo=OC_FileCache_Cached::get('');
 		// TODO Remove after merge of share_api
 		if (OC_FileCache::inCache('/Shared')) {
@@ -64,36 +64,36 @@ class OC_FileProxy_Quota extends OC_FileProxy{
 		$usedSpace=isset($rootInfo['size'])?$rootInfo['size']:0;
 		$usedSpace=isset($sharedInfo['size'])?$usedSpace-$sharedInfo['size']:$usedSpace;
 		$totalSpace=$this->getQuota();
-		if($totalSpace==0){
+		if($totalSpace==0) {
 			return 0;
 		}
 		return $totalSpace-$usedSpace;
 	}
-	
-	public function postFree_space($path,$space){
+
+	public function postFree_space($path,$space) {
 		$free=$this->getFreeSpace();
-		if($free==0){
+		if($free==0) {
 			return $space;
 		}
 		return min($free,$space);
 	}
 
-	public function preFile_put_contents($path,$data){
+	public function preFile_put_contents($path,$data) {
 		if (is_resource($data)) {
 			$data = '';//TODO: find a way to get the length of the stream without emptying it
 		}
 		return (strlen($data)<$this->getFreeSpace() or $this->getFreeSpace()==0);
 	}
 
-	public function preCopy($path1,$path2){
+	public function preCopy($path1,$path2) {
 		return (OC_Filesystem::filesize($path1)<$this->getFreeSpace() or $this->getFreeSpace()==0);
 	}
 
-	public function preFromTmpFile($tmpfile,$path){
+	public function preFromTmpFile($tmpfile,$path) {
 		return (filesize($tmpfile)<$this->getFreeSpace() or $this->getFreeSpace()==0);
 	}
 
-	public function preFromUploadedFile($tmpfile,$path){
+	public function preFromUploadedFile($tmpfile,$path) {
 		return (filesize($tmpfile)<$this->getFreeSpace() or $this->getFreeSpace()==0);
 	}
 }
\ No newline at end of file
diff --git a/lib/files.php b/lib/files.php
index 1a1fffa0a50..63dd96b9509 100644
--- a/lib/files.php
+++ b/lib/files.php
@@ -32,9 +32,9 @@ class OC_Files {
 	* get the content of a directory
 	* @param dir $directory path under datadirectory
 	*/
-	public static function getDirectoryContent($directory, $mimetype_filter = ''){
+	public static function getDirectoryContent($directory, $mimetype_filter = '') {
 		$directory=OC_Filesystem::normalizePath($directory);
-		if($directory=='/'){
+		if($directory=='/') {
 			$directory='';
 		}
 		$files = array();
@@ -56,7 +56,11 @@ class OC_Files {
 			foreach ($files as &$file) {
 				$file['directory'] = $directory;
 				$file['type'] = ($file['mimetype'] == 'httpd/unix-directory') ? 'dir' : 'file';
-				$permissions = OCP\Share::PERMISSION_READ | OCP\Share::PERMISSION_SHARE;
+				$permissions = OCP\Share::PERMISSION_READ;
+				// NOTE: Remove check when new encryption is merged
+				if (!$file['encrypted']) {
+					$permissions |= OCP\Share::PERMISSION_SHARE;
+				}
 				if ($file['type'] == 'dir' && $file['writable']) {
 					$permissions |= OCP\Share::PERMISSION_CREATE;
 				}
@@ -83,12 +87,12 @@ class OC_Files {
 	* @param file $file ; seperated list of files to download
 	* @param boolean $only_header ; boolean to only send header of the request
 	*/
-	public static function get($dir,$files, $only_header = false){
-		if(strpos($files,';')){
+	public static function get($dir,$files, $only_header = false) {
+		if(strpos($files,';')) {
 			$files=explode(';',$files);
 		}
 
-		if(is_array($files)){
+		if(is_array($files)) {
 			self::validateZipDownload($dir,$files);
 			$executionTime = intval(ini_get('max_execution_time'));
 			set_time_limit(0);
@@ -97,19 +101,19 @@ class OC_Files {
 			if ($zip->open($filename, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE)!==TRUE) {
 				exit("cannot open <$filename>\n");
 			}
-			foreach($files as $file){
+			foreach($files as $file) {
 				$file=$dir.'/'.$file;
-				if(OC_Filesystem::is_file($file)){
+				if(OC_Filesystem::is_file($file)) {
 					$tmpFile=OC_Filesystem::toTmpFile($file);
 					self::$tmpFiles[]=$tmpFile;
 					$zip->addFile($tmpFile,basename($file));
-				}elseif(OC_Filesystem::is_dir($file)){
+				}elseif(OC_Filesystem::is_dir($file)) {
 					self::zipAddDir($file,$zip);
 				}
 			}
 			$zip->close();
 			set_time_limit($executionTime);
-		}elseif(OC_Filesystem::is_dir($dir.'/'.$files)){
+		}elseif(OC_Filesystem::is_dir($dir.'/'.$files)) {
 			self::validateZipDownload($dir,$files);
 			$executionTime = intval(ini_get('max_execution_time'));
 			set_time_limit(0);
@@ -127,18 +131,18 @@ class OC_Files {
 			$filename=$dir.'/'.$files;
 		}
 		@ob_end_clean();
-		if($zip or OC_Filesystem::is_readable($filename)){
+		if($zip or OC_Filesystem::is_readable($filename)) {
 			header('Content-Disposition: attachment; filename="'.basename($filename).'"');
 			header('Content-Transfer-Encoding: binary');
 			OC_Response::disableCaching();
-			if($zip){
+			if($zip) {
 				ini_set('zlib.output_compression', 'off');
 				header('Content-Type: application/zip');
 				header('Content-Length: ' . filesize($filename));
 			}else{
 				header('Content-Type: '.OC_Filesystem::getMimeType($filename));
 			}
-		}elseif($zip or !OC_Filesystem::file_exists($filename)){
+		}elseif($zip or !OC_Filesystem::file_exists($filename)) {
 			header("HTTP/1.0 404 Not Found");
 			$tmpl = new OC_Template( '', '404', 'guest' );
 			$tmpl->assign('file',$filename);
@@ -147,12 +151,12 @@ class OC_Files {
 			header("HTTP/1.0 403 Forbidden");
 			die('403 Forbidden');
 		}
-		if($only_header){
+		if($only_header) {
 			if(!$zip)
 				header("Content-Length: ".OC_Filesystem::filesize($filename));
 			return ;
 		}
-		if($zip){
+		if($zip) {
 			$handle=fopen($filename,'r');
 			if ($handle) {
 				$chunkSize = 8*1024;// 1 MB chunks
@@ -165,26 +169,26 @@ class OC_Files {
 		}else{
 			OC_Filesystem::readfile($filename);
 		}
-		foreach(self::$tmpFiles as $tmpFile){
-			if(file_exists($tmpFile) and is_file($tmpFile)){
+		foreach(self::$tmpFiles as $tmpFile) {
+			if(file_exists($tmpFile) and is_file($tmpFile)) {
 				unlink($tmpFile);
 			}
 		}
 	}
 
-	public static function zipAddDir($dir,$zip,$internalDir=''){
+	public static function zipAddDir($dir,$zip,$internalDir='') {
 		$dirname=basename($dir);
 		$zip->addEmptyDir($internalDir.$dirname);
 		$internalDir.=$dirname.='/';
 		$files=OC_Files::getdirectorycontent($dir);
-		foreach($files as $file){
+		foreach($files as $file) {
 			$filename=$file['name'];
 			$file=$dir.'/'.$filename;
-			if(OC_Filesystem::is_file($file)){
+			if(OC_Filesystem::is_file($file)) {
 				$tmpFile=OC_Filesystem::toTmpFile($file);
 				OC_Files::$tmpFiles[]=$tmpFile;
 				$zip->addFile($tmpFile,$internalDir.$filename);
-			}elseif(OC_Filesystem::is_dir($file)){
+			}elseif(OC_Filesystem::is_dir($file)) {
 				self::zipAddDir($file,$zip,$internalDir);
 			}
 		}
@@ -197,8 +201,8 @@ class OC_Files {
 	* @param dir  $targetDir
 	* @param file $target
 	*/
-	public static function move($sourceDir,$source,$targetDir,$target){
-		if(OC_User::isLoggedIn() && ($sourceDir != '' || $source != 'Shared') && !OC_Filesystem::file_exists($targetDir.'/'.$target)){
+	public static function move($sourceDir,$source,$targetDir,$target) {
+		if(OC_User::isLoggedIn() && ($sourceDir != '' || $source != 'Shared')) {
 			$targetFile=self::normalizePath($targetDir.'/'.$target);
 			$sourceFile=self::normalizePath($sourceDir.'/'.$source);
 			return OC_Filesystem::rename($sourceFile,$targetFile);
@@ -215,8 +219,8 @@ class OC_Files {
 	* @param dir  $targetDir
 	* @param file $target
 	*/
-	public static function copy($sourceDir,$source,$targetDir,$target){
-		if(OC_User::isLoggedIn()){
+	public static function copy($sourceDir,$source,$targetDir,$target) {
+		if(OC_User::isLoggedIn()) {
 			$targetFile=$targetDir.'/'.$target;
 			$sourceFile=$sourceDir.'/'.$source;
 			return OC_Filesystem::copy($sourceFile,$targetFile);
@@ -230,14 +234,14 @@ class OC_Files {
 	* @param file $name
 	* @param type $type
 	*/
-	public static function newFile($dir,$name,$type){
-		if(OC_User::isLoggedIn()){
+	public static function newFile($dir,$name,$type) {
+		if(OC_User::isLoggedIn()) {
 			$file=$dir.'/'.$name;
-			if($type=='dir'){
+			if($type=='dir') {
 				return OC_Filesystem::mkdir($file);
-			}elseif($type=='file'){
+			}elseif($type=='file') {
 				$fileHandle=OC_Filesystem::fopen($file, 'w');
-				if($fileHandle){
+				if($fileHandle) {
 					fclose($fileHandle);
 					return true;
 				}else{
@@ -253,7 +257,7 @@ class OC_Files {
 	* @param dir  $dir
 	* @param file $name
 	*/
-	public static function delete($dir,$file){
+	public static function delete($dir,$file) {
 		if(OC_User::isLoggedIn() && ($dir!= '' || $file != 'Shared')) {
 			$file=$dir.'/'.$file;
 			return OC_Filesystem::unlink($file);
@@ -268,7 +272,7 @@ class OC_Files {
 	*/
 	static function validateZipDownload($dir, $files) {
 		if(!OC_Config::getValue('allowZipDownload', true)) {
-			$l = OC_L10N::get('files');
+			$l = OC_L10N::get('lib');
 			header("HTTP/1.0 409 Conflict");
 			$tmpl = new OC_Template( '', 'error', 'user' );
 			$errors = array(
@@ -285,15 +289,15 @@ class OC_Files {
 		$zipLimit = OC_Config::getValue('maxZipInputSize', OC_Helper::computerFileSize('800 MB'));
 		if($zipLimit > 0) {
 			$totalsize = 0;
-			if(is_array($files)){
-				foreach($files as $file){
+			if(is_array($files)) {
+				foreach($files as $file) {
 					$totalsize += OC_Filesystem::filesize($dir.'/'.$file);
 				}
 			}else{
 				$totalsize += OC_Filesystem::filesize($dir.'/'.$files);
 			}
 			if($totalsize > $zipLimit) {
-				$l = OC_L10N::get('files');
+				$l = OC_L10N::get('lib');
 				header("HTTP/1.0 409 Conflict");
 				$tmpl = new OC_Template( '', 'error', 'user' );
 				$errors = array(
@@ -315,7 +319,7 @@ class OC_Files {
 	* @param  string  path
 	* @return string  guessed mime type
 	*/
-	static function getMimeType($path){
+	static function getMimeType($path) {
 		return OC_Filesystem::getMimeType($path);
 	}
 
@@ -325,7 +329,7 @@ class OC_Files {
 	* @param  string  path
 	* @return array
 	*/
-	static function getTree($path){
+	static function getTree($path) {
 		return OC_Filesystem::getTree($path);
 	}
 
@@ -337,7 +341,7 @@ class OC_Files {
 	* @param  string  file
 	* @return string  guessed mime type
 	*/
-	static function pull($source,$token,$dir,$file){
+	static function pull($source,$token,$dir,$file) {
 		$tmpfile=tempnam(get_temp_dir(),'remoteCloudFile');
 		$fp=fopen($tmpfile,'w+');
 		$url=$source.="/files/pull.php?token=$token";
@@ -349,7 +353,7 @@ class OC_Files {
 		$info=curl_getinfo($ch);
 		$httpCode=$info['http_code'];
 		curl_close($ch);
-		if($httpCode==200 or $httpCode==0){
+		if($httpCode==200 or $httpCode==0) {
 			OC_Filesystem::fromTmpFile($tmpfile,$dir.'/'.$file);
 			return true;
 		}else{
@@ -362,7 +366,7 @@ class OC_Files {
 	 * @param int size filesisze in bytes
 	 * @return false on failure, size on success
 	 */
-	static function setUploadLimit($size){
+	static function setUploadLimit($size) {
 		//don't allow user to break his config -- upper boundary
 		if($size > PHP_INT_MAX) {
 			//max size is always 1 byte lower than computerFileSize returns
@@ -406,9 +410,9 @@ class OC_Files {
 		//check for write permissions
 		if(is_writable(OC::$SERVERROOT.'/.htaccess')) {
 			file_put_contents(OC::$SERVERROOT.'/.htaccess', $htaccess);
-			return OC_Helper::computerFileSize($size);	
+			return OC_Helper::computerFileSize($size);
 		} else { OC_Log::write('files','Can\'t write upload limit to '.OC::$SERVERROOT.'/.htaccess. Please check the file permissions',OC_Log::WARN); }
-		
+
 		return false;
 	}
 
@@ -417,10 +421,10 @@ class OC_Files {
 	 * @param string $path
 	 * @return string
 	 */
-	static public function normalizePath($path){
+	static public function normalizePath($path) {
 		$path='/'.$path;
 		$old='';
-		while($old!=$path){//replace any multiplicity of slashes with a single one
+		while($old!=$path) {//replace any multiplicity of slashes with a single one
 			$old=$path;
 			$path=str_replace('//','/',$path);
 		}
@@ -428,10 +432,10 @@ class OC_Files {
 	}
 }
 
-function fileCmp($a,$b){
-	if($a['type']=='dir' and $b['type']!='dir'){
+function fileCmp($a,$b) {
+	if($a['type']=='dir' and $b['type']!='dir') {
 		return -1;
-	}elseif($a['type']!='dir' and $b['type']=='dir'){
+	}elseif($a['type']!='dir' and $b['type']=='dir') {
 		return 1;
 	}else{
 		return strnatcasecmp($a['name'],$b['name']);
diff --git a/lib/filestorage/common.php b/lib/filestorage/common.php
index c829be62f74..351714437c5 100644
--- a/lib/filestorage/common.php
+++ b/lib/filestorage/common.php
@@ -21,11 +21,11 @@
 */
 
 /**
- * Storage backend class for providing common filesystem operation methods 
+ * Storage backend class for providing common filesystem operation methods
  * which are not storage-backend specific.
  *
  * OC_Filestorage_Common is never used directly; it is extended by all other
- * storage backends, where its methods may be overridden, and additional 
+ * storage backends, where its methods may be overridden, and additional
  * (backend-specific) methods are defined.
  *
  * Some OC_Filestorage_Common methods call functions which are first defined
@@ -34,20 +34,20 @@
 
 abstract class OC_Filestorage_Common extends OC_Filestorage {
 
-	public function __construct($parameters){}
+	public function __construct($parameters) {}
 // 	abstract public function mkdir($path);
 // 	abstract public function rmdir($path);
 // 	abstract public function opendir($path);
-	public function is_dir($path){
+	public function is_dir($path) {
 		return $this->filetype($path)=='dir';
 	}
-	public function is_file($path){
+	public function is_file($path) {
 		return $this->filetype($path)=='file';
 	}
 // 	abstract public function stat($path);
 // 	abstract public function filetype($path);
 	public function filesize($path) {
-		if($this->is_dir($path)){
+		if($this->is_dir($path)) {
 			return 0;//by definition
 		}else{
 			$stat = $this->stat($path);
@@ -80,11 +80,11 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 	}
 	public function file_get_contents($path) {
 		$handle = $this->fopen($path, "r");
-		if(!$handle){
+		if(!$handle) {
 			return false;
 		}
 		$size=$this->filesize($path);
-		if($size==0){
+		if($size==0) {
 			return '';
 		}
 		return fread($handle, $size);
@@ -94,8 +94,8 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 		return fwrite($handle, $data);
 	}
 // 	abstract public function unlink($path);
-	public function rename($path1,$path2){
-		if($this->copy($path1,$path2)){
+	public function rename($path1,$path2) {
+		if($this->copy($path1,$path2)) {
 			return $this->unlink($path1);
 		}else{
 			return false;
@@ -115,85 +115,85 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 	 * @param $empty Flag indicating whether directory will be emptied
 	 * @returns true/false
 	 *
-	 * @note By default the directory specified by $directory will be 
+	 * @note By default the directory specified by $directory will be
 	 * deleted together with its contents. To avoid this set $empty to true
 	 */
 	public function deleteAll( $directory, $empty = false ) {
-	
+
 		// strip leading slash
 		if( substr( $directory, 0, 1 ) == "/" ) {
-		
+
 			$directory = substr( $directory, 1 );
-			
+
 		}
-		
+
 		// strip trailing slash
 		if( substr( $directory, -1) == "/" ) {
-		
+
 			$directory = substr( $directory, 0, -1 );
-			
+
 		}
-		
+
 		if ( !$this->file_exists( \OCP\USER::getUser() . '/' . $directory ) || !$this->is_dir( \OCP\USER::getUser() . '/' . $directory ) ) {
-		
+
 			return false;
-			
+
 		} elseif( !$this->is_readable( \OCP\USER::getUser() . '/' . $directory ) ) {
-		
+
 			return false;
-			
+
 		} else {
-			
+
 			$directoryHandle = $this->opendir( \OCP\USER::getUser() . '/' . $directory );
-			
+
 			while ( $contents = readdir( $directoryHandle ) ) {
-			
+
 				if ( $contents != '.' && $contents != '..') {
-					
+
 					$path = $directory . "/" . $contents;
-				
+
 					if ( $this->is_dir( $path ) ) {
-						
+
 						deleteAll( $path );
-					
+
 					} else {
-						
+
 						$this->unlink( \OCP\USER::getUser() .'/' . $path ); // TODO: make unlink use same system path as is_dir
-					
+
 					}
 				}
-			
+
 			}
-		
+
 			//$this->closedir( $directoryHandle ); // TODO: implement closedir in OC_FSV
 
 			if ( $empty == false ) {
-			
+
 				if ( !$this->rmdir( $directory ) ) {
-				
+
 					return false;
-					
+
 				}
-				
+
 			}
-		
+
 			return true;
 		}
-		
+
 	}
-	public function getMimeType($path){
-		if(!$this->file_exists($path)){
+	public function getMimeType($path) {
+		if(!$this->file_exists($path)) {
 			return false;
 		}
-		if($this->is_dir($path)){
+		if($this->is_dir($path)) {
 			return 'httpd/unix-directory';
 		}
 		$source=$this->fopen($path,'r');
-		if(!$source){
+		if(!$source) {
 			return false;
 		}
 		$head=fread($source,8192);//8kb should suffice to determine a mimetype
-		if($pos=strrpos($path,'.')){
+		if($pos=strrpos($path,'.')) {
 			$extension=substr($path,$pos);
 		}else{
 			$extension='';
@@ -204,25 +204,25 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 		unlink($tmpFile);
 		return $mime;
 	}
-	public function hash($type,$path,$raw = false){
+	public function hash($type,$path,$raw = false) {
 		$tmpFile=$this->getLocalFile();
 		$hash=hash($type,$tmpFile,$raw);
 		unlink($tmpFile);
 		return $hash;
 	}
 // 	abstract public function free_space($path);
-	public function search($query){
+	public function search($query) {
 		return $this->searchInDir($query);
 	}
-	public function getLocalFile($path){
+	public function getLocalFile($path) {
 		return $this->toTmpFile($path);
 	}
-	private function toTmpFile($path){//no longer in the storage api, still usefull here
+	private function toTmpFile($path) {//no longer in the storage api, still usefull here
 		$source=$this->fopen($path,'r');
-		if(!$source){
+		if(!$source) {
 			return false;
 		}
-		if($pos=strrpos($path,'.')){
+		if($pos=strrpos($path,'.')) {
 			$extension=substr($path,$pos);
 		}else{
 			$extension='';
@@ -232,16 +232,16 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 		OC_Helper::streamCopy($source,$target);
 		return $tmpFile;
 	}
-	public function getLocalFolder($path){
+	public function getLocalFolder($path) {
 		$baseDir=OC_Helper::tmpFolder();
 		$this->addLocalFolder($path,$baseDir);
 		return $baseDir;
 	}
-	private function addLocalFolder($path,$target){
-		if($dh=$this->opendir($path)){
-			while($file=readdir($dh)){
-				if($file!=='.' and $file!=='..'){
-					if($this->is_dir($path.'/'.$file)){
+	private function addLocalFolder($path,$target) {
+		if($dh=$this->opendir($path)) {
+			while($file=readdir($dh)) {
+				if($file!=='.' and $file!=='..') {
+					if($this->is_dir($path.'/'.$file)) {
 						mkdir($target.'/'.$file);
 						$this->addLocalFolder($path.'/'.$file,$target.'/'.$file);
 					}else{
@@ -254,16 +254,16 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 	}
 // 	abstract public function touch($path, $mtime=null);
 
-	protected function searchInDir($query,$dir=''){
+	protected function searchInDir($query,$dir='') {
 		$files=array();
 		$dh=$this->opendir($dir);
-		if($dh){
-			while($item=readdir($dh)){
+		if($dh) {
+			while($item=readdir($dh)) {
 				if ($item == '.' || $item == '..') continue;
-				if(strstr(strtolower($item),strtolower($query))!==false){
+				if(strstr(strtolower($item),strtolower($query))!==false) {
 					$files[]=$dir.'/'.$item;
 				}
-				if($this->is_dir($dir.'/'.$item)){
+				if($this->is_dir($dir.'/'.$item)) {
 					$files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item));
 				}
 			}
@@ -276,7 +276,7 @@ abstract class OC_Filestorage_Common extends OC_Filestorage {
 	 * @param int $time
 	 * @return bool
 	 */
-	public function hasUpdated($path,$time){
+	public function hasUpdated($path,$time) {
 		return $this->filemtime($path)>$time;
 	}
 }
diff --git a/lib/filestorage/commontest.php b/lib/filestorage/commontest.php
index b5126a407b3..b88bb232c36 100644
--- a/lib/filestorage/commontest.php
+++ b/lib/filestorage/commontest.php
@@ -31,45 +31,45 @@ class OC_Filestorage_CommonTest extends OC_Filestorage_Common{
 	 * @var OC_FileStorage_Local
 	 */
 	private $storage;
-	
-	public function __construct($params){
+
+	public function __construct($params) {
 		$this->storage=new OC_Filestorage_Local($params);
 	}
-	
-	public function mkdir($path){
+
+	public function mkdir($path) {
 		return $this->storage->mkdir($path);
 	}
-	public function rmdir($path){
+	public function rmdir($path) {
 		return $this->storage->rmdir($path);
 	}
-	public function opendir($path){
+	public function opendir($path) {
 		return $this->storage->opendir($path);
 	}
-	public function stat($path){
+	public function stat($path) {
 		return $this->storage->stat($path);
 	}
-	public function filetype($path){
+	public function filetype($path) {
 		return $this->storage->filetype($path);
 	}
-	public function isReadable($path){
+	public function isReadable($path) {
 		return $this->storage->isReadable($path);
 	}
-	public function isUpdatable($path){
+	public function isUpdatable($path) {
 		return $this->storage->isUpdatable($path);
 	}
-	public function file_exists($path){
+	public function file_exists($path) {
 		return $this->storage->file_exists($path);
 	}
-	public function unlink($path){
+	public function unlink($path) {
 		return $this->storage->unlink($path);
 	}
-	public function fopen($path,$mode){
+	public function fopen($path,$mode) {
 		return $this->storage->fopen($path,$mode);
 	}
-	public function free_space($path){
+	public function free_space($path) {
 		return $this->storage->free_space($path);
 	}
-	public function touch($path, $mtime=null){
+	public function touch($path, $mtime=null) {
 		return $this->storage->touch($path,$mtime);
 	}
 }
\ No newline at end of file
diff --git a/lib/filestorage/local.php b/lib/filestorage/local.php
index 22d17469df3..80aa548047c 100644
--- a/lib/filestorage/local.php
+++ b/lib/filestorage/local.php
@@ -4,67 +4,67 @@
  */
 class OC_Filestorage_Local extends OC_Filestorage_Common{
 	protected $datadir;
-	public function __construct($arguments){
+	public function __construct($arguments) {
 		$this->datadir=$arguments['datadir'];
-		if(substr($this->datadir,-1)!=='/'){
+		if(substr($this->datadir,-1)!=='/') {
 			$this->datadir.='/';
 		}
 	}
-	public function mkdir($path){
+	public function mkdir($path) {
 		return @mkdir($this->datadir.$path);
 	}
-	public function rmdir($path){
+	public function rmdir($path) {
 		return @rmdir($this->datadir.$path);
 	}
-	public function opendir($path){
+	public function opendir($path) {
 		return opendir($this->datadir.$path);
 	}
-	public function is_dir($path){
-		if(substr($path,-1)=='/'){
+	public function is_dir($path) {
+		if(substr($path,-1)=='/') {
 			$path=substr($path,0,-1);
 		}
 		return is_dir($this->datadir.$path);
 	}
-	public function is_file($path){
+	public function is_file($path) {
 		return is_file($this->datadir.$path);
 	}
-	public function stat($path){
+	public function stat($path) {
 		return stat($this->datadir.$path);
 	}
-	public function filetype($path){
+	public function filetype($path) {
 		$filetype=filetype($this->datadir.$path);
-		if($filetype=='link'){
+		if($filetype=='link') {
 			$filetype=filetype(realpath($this->datadir.$path));
 		}
 		return $filetype;
 	}
-	public function filesize($path){
-		if($this->is_dir($path)){
+	public function filesize($path) {
+		if($this->is_dir($path)) {
 			return 0;
 		}else{
 			return filesize($this->datadir.$path);
 		}
 	}
-	public function isReadable($path){
+	public function isReadable($path) {
 		return is_readable($this->datadir.$path);
 	}
-	public function isUpdatable($path){
+	public function isUpdatable($path) {
 		return is_writable($this->datadir.$path);
 	}
-	public function file_exists($path){
+	public function file_exists($path) {
 		return file_exists($this->datadir.$path);
 	}
-	public function filectime($path){
+	public function filectime($path) {
 		return filectime($this->datadir.$path);
 	}
-	public function filemtime($path){
+	public function filemtime($path) {
 		return filemtime($this->datadir.$path);
 	}
-	public function touch($path, $mtime=null){
-		// sets the modification time of the file to the given value. 
+	public function touch($path, $mtime=null) {
+		// sets the modification time of the file to the given value.
 		// If mtime is nil the current time is set.
 		// note that the access time of the file always changes to the current time.
-		if(!is_null($mtime)){
+		if(!is_null($mtime)) {
 			$result=touch( $this->datadir.$path, $mtime );
 		}else{
 			$result=touch( $this->datadir.$path);
@@ -72,35 +72,35 @@ class OC_Filestorage_Local extends OC_Filestorage_Common{
 		if( $result ) {
 			clearstatcache( true, $this->datadir.$path );
 		}
-		
+
 		return $result;
 	}
-	public function file_get_contents($path){
+	public function file_get_contents($path) {
 		return file_get_contents($this->datadir.$path);
 	}
-	public function file_put_contents($path,$data){
+	public function file_put_contents($path,$data) {
 		return file_put_contents($this->datadir.$path,$data);
 	}
-	public function unlink($path){
+	public function unlink($path) {
 		return $this->delTree($path);
 	}
-	public function rename($path1,$path2){
+	public function rename($path1,$path2) {
 		if (!$this->isUpdatable($path1)) {
 			OC_Log::write('core','unable to rename, file is not writable : '.$path1,OC_Log::ERROR);
 			return false;
 		}
-		if(! $this->file_exists($path1)){
+		if(! $this->file_exists($path1)) {
 			OC_Log::write('core','unable to rename, file does not exists : '.$path1,OC_Log::ERROR);
 			return false;
 		}
 
-		if($return=rename($this->datadir.$path1,$this->datadir.$path2)){
+		if($return=rename($this->datadir.$path1,$this->datadir.$path2)) {
 		}
 		return $return;
 	}
-	public function copy($path1,$path2){
-		if($this->is_dir($path2)){
-			if(!$this->file_exists($path2)){
+	public function copy($path1,$path2) {
+		if($this->is_dir($path2)) {
+			if(!$this->file_exists($path2)) {
 				$this->mkdir($path2);
 			}
 			$source=substr($path1,strrpos($path1,'/')+1);
@@ -108,9 +108,9 @@ class OC_Filestorage_Local extends OC_Filestorage_Common{
 		}
 		return copy($this->datadir.$path1,$this->datadir.$path2);
 	}
-	public function fopen($path,$mode){
-		if($return=fopen($this->datadir.$path,$mode)){
-			switch($mode){
+	public function fopen($path,$mode) {
+		if($return=fopen($this->datadir.$path,$mode)) {
+			switch($mode) {
 				case 'r':
 					break;
 				case 'r+':
@@ -127,8 +127,8 @@ class OC_Filestorage_Local extends OC_Filestorage_Common{
 		return $return;
 	}
 
-	public function getMimeType($path){
-		if($this->isReadable($path)){
+	public function getMimeType($path) {
+		if($this->isReadable($path)) {
 			return OC_Helper::getMimeType($this->datadir.$path);
 		}else{
 			return false;
@@ -142,46 +142,46 @@ class OC_Filestorage_Local extends OC_Filestorage_Common{
 		if (!is_dir($dir) || is_link($dir)) return unlink($dir);
 		foreach (scandir($dir) as $item) {
 			if ($item == '.' || $item == '..') continue;
-			if(is_file($dir.'/'.$item)){
-				if(unlink($dir.'/'.$item)){
+			if(is_file($dir.'/'.$item)) {
+				if(unlink($dir.'/'.$item)) {
 				}
-			}elseif(is_dir($dir.'/'.$item)){
-				if (!$this->delTree($dirRelative. "/" . $item)){
+			}elseif(is_dir($dir.'/'.$item)) {
+				if (!$this->delTree($dirRelative. "/" . $item)) {
 					return false;
 				};
 			}
 		}
-		if($return=rmdir($dir)){
+		if($return=rmdir($dir)) {
 		}
 		return $return;
 	}
 
-	public function hash($path,$type,$raw=false){
+	public function hash($path,$type,$raw=false) {
 		return hash_file($type,$this->datadir.$path,$raw);
 	}
 
-	public function free_space($path){
-		return disk_free_space($this->datadir.$path);
+	public function free_space($path) {
+		return @disk_free_space($this->datadir.$path);
 	}
 
-	public function search($query){
+	public function search($query) {
 		return $this->searchInDir($query);
 	}
-	public function getLocalFile($path){
+	public function getLocalFile($path) {
 		return $this->datadir.$path;
 	}
-	public function getLocalFolder($path){
+	public function getLocalFolder($path) {
 		return $this->datadir.$path;
 	}
 
-	protected function searchInDir($query,$dir=''){
+	protected function searchInDir($query,$dir='') {
 		$files=array();
 		foreach (scandir($this->datadir.$dir) as $item) {
 			if ($item == '.' || $item == '..') continue;
-			if(strstr(strtolower($item),strtolower($query))!==false){
+			if(strstr(strtolower($item),strtolower($query))!==false) {
 				$files[]=$dir.'/'.$item;
 			}
-			if(is_dir($this->datadir.$dir.'/'.$item)){
+			if(is_dir($this->datadir.$dir.'/'.$item)) {
 				$files=array_merge($files,$this->searchInDir($query,$dir.'/'.$item));
 			}
 		}
@@ -193,7 +193,7 @@ class OC_Filestorage_Local extends OC_Filestorage_Common{
 	 * @param int $time
 	 * @return bool
 	 */
-	public function hasUpdated($path,$time){
+	public function hasUpdated($path,$time) {
 		return $this->filemtime($path)>$time;
 	}
 }
diff --git a/lib/filestorage/temporary.php b/lib/filestorage/temporary.php
index 8f2373c8e95..876ba045a63 100644
--- a/lib/filestorage/temporary.php
+++ b/lib/filestorage/temporary.php
@@ -3,15 +3,15 @@
  * local storage backnd in temporary folder for testing purpores
  */
 class OC_Filestorage_Temporary extends OC_Filestorage_Local{
-	public function __construct($arguments){
+	public function __construct($arguments) {
 		$this->datadir=OC_Helper::tmpFolder();
 	}
 
-	public function cleanUp(){
+	public function cleanUp() {
 		OC_Helper::rmdirr($this->datadir);
 	}
 
-	public function __destruct(){
+	public function __destruct() {
 		$this->cleanUp();
 	}
 }
diff --git a/lib/filesystem.php b/lib/filesystem.php
index fbb02900456..92eb4fa4778 100644
--- a/lib/filesystem.php
+++ b/lib/filesystem.php
@@ -3,22 +3,22 @@
 /**
 * ownCloud
 *
-* @author Frank Karlitschek 
-* @copyright 2012 Frank Karlitschek frank@owncloud.org 
-* 
+* @author Frank Karlitschek
+* @copyright 2012 Frank Karlitschek frank@owncloud.org
+*
 * 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 
+* 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 
+*
+* 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/>.
-* 
+*
 */
 
 
@@ -146,22 +146,22 @@ class OC_Filesystem{
 	 * @param string path
 	  * @return string
 	 */
-	static public function getMountPoint($path){
+	static public function getMountPoint($path) {
 		OC_Hook::emit(self::CLASSNAME,'get_mountpoint',array('path'=>$path));
-		if(!$path){
+		if(!$path) {
 			$path='/';
 		}
-		if($path[0]!=='/'){
+		if($path[0]!=='/') {
 			$path='/'.$path;
 		}
 		$path=str_replace('//', '/',$path);
 		$foundMountPoint='';
 		$mountPoints=array_keys(OC_Filesystem::$mounts);
-		foreach($mountPoints as $mountpoint){
-			if($mountpoint==$path){
+		foreach($mountPoints as $mountpoint) {
+			if($mountpoint==$path) {
 				return $mountpoint;
 			}
-			if(strpos($path,$mountpoint)===0 and strlen($mountpoint)>strlen($foundMountPoint)){
+			if(strpos($path,$mountpoint)===0 and strlen($mountpoint)>strlen($foundMountPoint)) {
 				$foundMountPoint=$mountpoint;
 			}
 		}
@@ -173,7 +173,7 @@ class OC_Filesystem{
 	* @param  string  path
 	* @return bool
 	*/
-	static public function getInternalPath($path){
+	static public function getInternalPath($path) {
 		$mountPoint=self::getMountPoint($path);
 		$internalPath=substr($path,strlen($mountPoint));
 		return $internalPath;
@@ -183,38 +183,38 @@ class OC_Filesystem{
 	* @param string path
 	* @return OC_Filestorage
 	*/
-	static public function getStorage($path){
+	static public function getStorage($path) {
 		$mountpoint=self::getMountPoint($path);
-		if($mountpoint){
-			if(!isset(OC_Filesystem::$storages[$mountpoint])){
+		if($mountpoint) {
+			if(!isset(OC_Filesystem::$storages[$mountpoint])) {
 				$mount=OC_Filesystem::$mounts[$mountpoint];
 				OC_Filesystem::$storages[$mountpoint]=OC_Filesystem::createStorage($mount['class'],$mount['arguments']);
 			}
 			return OC_Filesystem::$storages[$mountpoint];
 		}
 	}
-	
-	static public function init($root){
-		if(self::$defaultInstance){
+
+	static public function init($root) {
+		if(self::$defaultInstance) {
 			return false;
 		}
 		self::$defaultInstance=new OC_FilesystemView($root);
 
 		//load custom mount config
-		if(is_file(OC::$SERVERROOT.'/config/mount.php')){
+		if(is_file(OC::$SERVERROOT.'/config/mount.php')) {
 			$mountConfig=include(OC::$SERVERROOT.'/config/mount.php');
-			if(isset($mountConfig['global'])){
-				foreach($mountConfig['global'] as $mountPoint=>$options){
+			if(isset($mountConfig['global'])) {
+				foreach($mountConfig['global'] as $mountPoint=>$options) {
 					self::mount($options['class'],$options['options'],$mountPoint);
 				}
 			}
 
-			if(isset($mountConfig['group'])){
-				foreach($mountConfig['group'] as $group=>$mounts){
-					if(OC_Group::inGroup(OC_User::getUser(),$group)){
-						foreach($mounts as $mountPoint=>$options){
+			if(isset($mountConfig['group'])) {
+				foreach($mountConfig['group'] as $group=>$mounts) {
+					if(OC_Group::inGroup(OC_User::getUser(),$group)) {
+						foreach($mounts as $mountPoint=>$options) {
 							$mountPoint=self::setUserVars($mountPoint);
-							foreach($options as &$option){
+							foreach($options as &$option) {
 								$option=self::setUserVars($option);
 							}
 							self::mount($options['class'],$options['options'],$mountPoint);
@@ -223,12 +223,12 @@ class OC_Filesystem{
 				}
 			}
 
-			if(isset($mountConfig['user'])){
-				foreach($mountConfig['user'] as $user=>$mounts){
-					if($user==='all' or strtolower($user)===strtolower(OC_User::getUser())){
-						foreach($mounts as $mountPoint=>$options){
+			if(isset($mountConfig['user'])) {
+				foreach($mountConfig['user'] as $user=>$mounts) {
+					if($user==='all' or strtolower($user)===strtolower(OC_User::getUser())) {
+						foreach($mounts as $mountPoint=>$options) {
 							$mountPoint=self::setUserVars($mountPoint);
-							foreach($options as &$option){
+							foreach($options as &$option) {
 								$option=self::setUserVars($option);
 							}
 							self::mount($options['class'],$options['options'],$mountPoint);
@@ -236,8 +236,15 @@ class OC_Filesystem{
 					}
 				}
 			}
+
+			$mtime=filemtime(OC::$SERVERROOT.'/config/mount.php');
+			$previousMTime=OC_Appconfig::getValue('files','mountconfigmtime',0);
+			if($mtime>$previousMTime) {//mount config has changed, filecache needs to be updated
+				OC_FileCache::clear();
+				OC_Appconfig::setValue('files','mountconfigmtime',$mtime);
+			}
 		}
-		
+
 		self::$loaded=true;
 	}
 
@@ -246,7 +253,7 @@ class OC_Filesystem{
 	 * @param string intput
 	 * @return string
 	 */
-	private static function setUserVars($input){
+	private static function setUserVars($input) {
 		return str_replace('$user',OC_User::getUser(),$input);
 	}
 
@@ -254,25 +261,25 @@ class OC_Filesystem{
 	 * get the default filesystem view
 	 * @return OC_FilesystemView
 	 */
-	static public function getView(){
+	static public function getView() {
 		return self::$defaultInstance;
 	}
-	
+
 	/**
 	 * tear down the filesystem, removing all storage providers
 	 */
-	static public function tearDown(){
+	static public function tearDown() {
 		self::$storages=array();
 	}
-	
+
 	/**
 	* create a new storage of a specific type
 	* @param  string  type
 	* @param  array  arguments
 	* @return OC_Filestorage
 	*/
-	static private function createStorage($class,$arguments){
-		if(class_exists($class)){
+	static private function createStorage($class,$arguments) {
+		if(class_exists($class)) {
 			try {
 				return new $class($arguments);
 			} catch (Exception $exception) {
@@ -284,13 +291,13 @@ class OC_Filesystem{
 			return false;
 		}
 	}
-	
+
 	/**
 	* change the root to a fake root
 	* @param  string  fakeRoot
 	* @return bool
 	*/
-	static public function chroot($fakeRoot){
+	static public function chroot($fakeRoot) {
 		return self::$defaultInstance->chroot($fakeRoot);
 	}
 
@@ -300,14 +307,14 @@ class OC_Filesystem{
 	 *
 	 * Returns path like /admin/files
 	 */
-	static public function getRoot(){
+	static public function getRoot() {
 		return self::$defaultInstance->getRoot();
 	}
 
 	/**
 	 * clear all mounts and storage backends
 	 */
-	public static function clearMounts(){
+	public static function clearMounts() {
 		self::$mounts=array();
 		self::$storages=array();
 	}
@@ -317,33 +324,33 @@ class OC_Filesystem{
 	* @param OC_Filestorage storage
 	* @param string mountpoint
 	*/
-	static public function mount($class,$arguments,$mountpoint){
-		if($mountpoint[0]!='/'){
+	static public function mount($class,$arguments,$mountpoint) {
+		if($mountpoint[0]!='/') {
 			$mountpoint='/'.$mountpoint;
 		}
-		if(substr($mountpoint,-1)!=='/'){
+		if(substr($mountpoint,-1)!=='/') {
 			$mountpoint=$mountpoint.'/';
 		}
 		self::$mounts[$mountpoint]=array('class'=>$class,'arguments'=>$arguments);
 	}
-	
+
 	/**
 	* 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($path){
+	static public function getLocalFile($path) {
 		return self::$defaultInstance->getLocalFile($path);
 	}
 	/**
 	 * @param string path
 	 * @return string
 	 */
-	static public function getLocalFolder($path){
+	static public function getLocalFolder($path) {
 		return self::$defaultInstance->getLocalFolder($path);
 	}
-	
+
 	/**
 	* return path to file which reflects one visible in browser
 	* @param string path
@@ -357,28 +364,28 @@ class OC_Filesystem{
 		}
 		return $newpath;
 	}
-	
+
 	/**
 	 * check if the requested path is valid
 	 * @param string path
 	 * @return bool
 	 */
-	static public function isValidPath($path){
-		if(!$path || $path[0]!=='/'){
+	static public function isValidPath($path) {
+		if(!$path || $path[0]!=='/') {
 			$path='/'.$path;
 		}
-		if(strstr($path,'/../') || strrchr($path, '/') === '/..' ){
+		if(strstr($path,'/../') || strrchr($path, '/') === '/..' ) {
 			return false;
 		}
 		return true;
 	}
-	
+
 	/**
 	 * checks if a file is blacklsited for storage in the filesystem
 	 * Listens to write and rename hooks
 	 * @param array $data from hook
 	 */
-	static public function isBlacklisted($data){
+	static public function isBlacklisted($data) {
 		$blacklist = array('.htaccess');
 		if (isset($data['path'])) {
 			$path = $data['path'];
@@ -392,50 +399,50 @@ class OC_Filesystem{
 			}
 		}
 	}
-	
+
 	/**
 	 * following functions are equivilent to their php buildin equivilents for arguments/return values.
 	 */
-	static public function mkdir($path){
+	static public function mkdir($path) {
 		return self::$defaultInstance->mkdir($path);
 	}
-	static public function rmdir($path){
+	static public function rmdir($path) {
 		return self::$defaultInstance->rmdir($path);
 	}
-	static public function opendir($path){
+	static public function opendir($path) {
 		return self::$defaultInstance->opendir($path);
 	}
-	static public function readdir($path){
+	static public function readdir($path) {
 		return self::$defaultInstance->readdir($path);
 	}
-	static public function is_dir($path){
+	static public function is_dir($path) {
 		return self::$defaultInstance->is_dir($path);
 	}
-	static public function is_file($path){
+	static public function is_file($path) {
 		return self::$defaultInstance->is_file($path);
 	}
-	static public function stat($path){
+	static public function stat($path) {
 		return self::$defaultInstance->stat($path);
 	}
-	static public function filetype($path){
+	static public function filetype($path) {
 		return self::$defaultInstance->filetype($path);
 	}
-	static public function filesize($path){
+	static public function filesize($path) {
 		return self::$defaultInstance->filesize($path);
 	}
-	static public function readfile($path){
+	static public function readfile($path) {
 		return self::$defaultInstance->readfile($path);
 	}
 	/**
 	* @deprecated Replaced by isReadable() as part of CRUDS
 	*/
-	static public function is_readable($path){
+	static public function is_readable($path) {
 		return self::$defaultInstance->is_readable($path);
 	}
 	/**
 	* @deprecated Replaced by isCreatable(), isUpdatable(), isDeletable() as part of CRUDS
 	*/
-	static public function is_writable($path){
+	static public function is_writable($path) {
 		return self::$defaultInstance->is_writable($path);
 	}
 	static public function isCreatable($path) {
@@ -453,55 +460,55 @@ class OC_Filesystem{
 	static public function isSharable($path) {
 		return self::$defaultInstance->isSharable($path);
 	}
-	static public function file_exists($path){
+	static public function file_exists($path) {
 		return self::$defaultInstance->file_exists($path);
 	}
-	static public function filectime($path){
+	static public function filectime($path) {
 		return self::$defaultInstance->filectime($path);
 	}
-	static public function filemtime($path){
+	static public function filemtime($path) {
 		return self::$defaultInstance->filemtime($path);
 	}
-	static public function touch($path, $mtime=null){
+	static public function touch($path, $mtime=null) {
 		return self::$defaultInstance->touch($path, $mtime);
 	}
-	static public function file_get_contents($path){
+	static public function file_get_contents($path) {
 		return self::$defaultInstance->file_get_contents($path);
 	}
-	static public function file_put_contents($path,$data){
+	static public function file_put_contents($path,$data) {
 		return self::$defaultInstance->file_put_contents($path,$data);
 	}
-	static public function unlink($path){
+	static public function unlink($path) {
 		return self::$defaultInstance->unlink($path);
 	}
-	static public function rename($path1,$path2){
+	static public function rename($path1,$path2) {
 		return self::$defaultInstance->rename($path1,$path2);
 	}
-	static public function copy($path1,$path2){
+	static public function copy($path1,$path2) {
 		return self::$defaultInstance->copy($path1,$path2);
 	}
-	static public function fopen($path,$mode){
+	static public function fopen($path,$mode) {
 		return self::$defaultInstance->fopen($path,$mode);
 	}
-	static public function toTmpFile($path){
+	static public function toTmpFile($path) {
 		return self::$defaultInstance->toTmpFile($path);
 	}
-	static public function fromTmpFile($tmpFile,$path){
+	static public function fromTmpFile($tmpFile,$path) {
 		return self::$defaultInstance->fromTmpFile($tmpFile,$path);
 	}
 
-	static public function getMimeType($path){
+	static public function getMimeType($path) {
 		return self::$defaultInstance->getMimeType($path);
 	}
-	static public function hash($type,$path, $raw = false){
+	static public function hash($type,$path, $raw = false) {
 		return self::$defaultInstance->hash($type,$path, $raw);
 	}
-	
-	static public function free_space($path='/'){
+
+	static public function free_space($path='/') {
 		return self::$defaultInstance->free_space($path);
 	}
-	
-	static public function search($query){
+
+	static public function search($query) {
 		return OC_FileCache::search($query);
 	}
 
@@ -510,7 +517,7 @@ class OC_Filesystem{
 	 * @param int $time
 	 * @return bool
 	 */
-	static public function hasUpdated($path,$time){
+	static public function hasUpdated($path,$time) {
 		return self::$defaultInstance->hasUpdated($path,$time);
 	}
 
@@ -529,26 +536,26 @@ class OC_Filesystem{
 	 * @param bool $stripTrailingSlash
 	 * @return string
 	 */
-	public static function normalizePath($path,$stripTrailingSlash=true){
-		if($path==''){
+	public static function normalizePath($path,$stripTrailingSlash=true) {
+		if($path=='') {
 			return '/';
 		}
 		//no windows style slashes
 		$path=str_replace('\\','/',$path);
 		//add leading slash
-		if($path[0]!=='/'){
+		if($path[0]!=='/') {
 			$path='/'.$path;
 		}
 		//remove trainling slash
-		if($stripTrailingSlash and strlen($path)>1 and substr($path,-1,1)==='/'){
+		if($stripTrailingSlash and strlen($path)>1 and substr($path,-1,1)==='/') {
 			$path=substr($path,0,-1);
 		}
 		//remove duplicate slashes
-		while(strpos($path,'//')!==false){
+		while(strpos($path,'//')!==false) {
 			$path=str_replace('//','/',$path);
 		}
 		//normalize unicode if possible
-		if(class_exists('Normalizer')){
+		if(class_exists('Normalizer')) {
 			$path=Normalizer::normalize($path);
 		}
 		return $path;
@@ -559,4 +566,4 @@ OC_Hook::connect('OC_Filesystem','post_delete','OC_Filesystem','removeETagHook')
 OC_Hook::connect('OC_Filesystem','post_rename','OC_Filesystem','removeETagHook');
 
 OC_Util::setupFS();
-require_once('filecache.php');
+require_once 'filecache.php';
diff --git a/lib/filesystemview.php b/lib/filesystemview.php
index a888e5340ea..3a17af510cf 100644
--- a/lib/filesystemview.php
+++ b/lib/filesystemview.php
@@ -48,22 +48,22 @@ class OC_FilesystemView {
 	}
 
 	public function getAbsolutePath($path) {
-		if(!$path){
+		if(!$path) {
 			$path='/';
 		}
-		if($path[0]!=='/'){
+		if($path[0]!=='/') {
 			$path='/'.$path;
 		}
 		return $this->fakeRoot.$path;
 	}
-	
+
 	/**
 	* change the root to a fake toor
 	* @param  string  fakeRoot
 	* @return bool
 	*/
 	public function chroot($fakeRoot) {
-		if(!$fakeRoot==''){
+		if(!$fakeRoot=='') {
 			if($fakeRoot[0]!=='/') {
 				$fakeRoot='/'.$fakeRoot;
 			}
@@ -104,7 +104,7 @@ class OC_FilesystemView {
 			return null;
 		}else{
 			$path=substr($path, strlen($this->fakeRoot));
-			if(strlen($path)===0){
+			if(strlen($path)===0) {
 				return '/';
 			}else{
 				return $path;
@@ -177,13 +177,13 @@ class OC_FilesystemView {
 		return $fsLocal->readdir( $handle );
 	}
 	public function is_dir($path) {
-		if($path=='/'){
+		if($path=='/') {
 			return true;
 		}
 		return $this->basicOperation('is_dir', $path);
 	}
 	public function is_file($path) {
-		if($path=='/'){
+		if($path=='/') {
 			return false;
 		}
 		return $this->basicOperation('is_file', $path);
@@ -214,13 +214,13 @@ class OC_FilesystemView {
 	/**
 	* @deprecated Replaced by isReadable() as part of CRUDS
 	*/
-	public function is_readable($path){
+	public function is_readable($path) {
 		return $this->basicOperation('isReadable',$path);
 	}
 	/**
 	* @deprecated Replaced by isCreatable(), isUpdatable(), isDeletable() as part of CRUDS
 	*/
-	public function is_writable($path){
+	public function is_writable($path) {
 		return $this->basicOperation('isUpdatable',$path);
 	}
 	public function isCreatable($path) {
@@ -239,7 +239,7 @@ class OC_FilesystemView {
 		return $this->basicOperation('isSharable', $path);
 	}
 	public function file_exists($path) {
-		if($path=='/'){
+		if($path=='/') {
 			return true;
 		}
 		return $this->basicOperation('file_exists', $path);
@@ -295,12 +295,12 @@ class OC_FilesystemView {
 							OC_Filesystem::signal_post_create,
 							array( OC_Filesystem::signal_param_path => $path)
 						);
-					}
+					}/*
 					OC_Hook::emit(
 						OC_Filesystem::CLASSNAME,
 						OC_Filesystem::signal_post_write,
 						array( OC_Filesystem::signal_param_path => $path)
-					);
+					);*/
 					OC_FileProxy::runPostProxies('file_put_contents', $absolutePath, $count);
 					return $count > 0;
 				}else{
@@ -325,7 +325,7 @@ class OC_FilesystemView {
 		if(OC_FileProxy::runPreProxies('rename', $absolutePath1, $absolutePath2) and OC_Filesystem::isValidPath($path2)) {
 			$path1 = $this->getRelativePath($absolutePath1);
 			$path2 = $this->getRelativePath($absolutePath2);
-			
+
 			if($path1 == null or $path2 == null) {
 				return false;
 			}
@@ -352,7 +352,7 @@ class OC_FilesystemView {
 					$storage1 = $this->getStorage($path1);
 					$storage1->unlink($this->getInternalPath($path1.$postFix1));
 					$result = $count>0;
-				} 
+				}
 				OC_Hook::emit(
 					OC_Filesystem::CLASSNAME,
 					OC_Filesystem::signal_post_rename,
@@ -373,7 +373,7 @@ class OC_FilesystemView {
 		if(OC_FileProxy::runPreProxies('copy', $absolutePath1, $absolutePath2) and OC_Filesystem::isValidPath($path2)) {
 			$path1 = $this->getRelativePath($absolutePath1);
 			$path2 = $this->getRelativePath($absolutePath2);
-			
+
 			if($path1 == null or $path2 == null) {
 				return false;
 			}
@@ -411,7 +411,7 @@ class OC_FilesystemView {
 			if($run) {
 				$mp1=$this->getMountPoint($path1.$postFix1);
 				$mp2=$this->getMountPoint($path2.$postFix2);
-				if($mp1 == $mp2){
+				if($mp1 == $mp2) {
 					if($storage = $this->getStorage($path1.$postFix1)) {
 						$result=$storage->copy($this->getInternalPath($path1.$postFix1), $this->getInternalPath($path2.$postFix2));
 					}
@@ -579,7 +579,7 @@ class OC_FilesystemView {
 		return null;
 	}
 
-	private function runHooks($hooks,$path,$post=false){
+	private function runHooks($hooks,$path,$post=false) {
 		$prefix=($post)?'post_':'';
 		$run=true;
 		if(OC_Filesystem::$loaded and $this->fakeRoot==OC_Filesystem::getRoot()) {
diff --git a/lib/geo.php b/lib/geo.php
index a967ab28a96..4eb785da355 100644
--- a/lib/geo.php
+++ b/lib/geo.php
@@ -12,11 +12,11 @@ class OC_Geo{
 	 * @param (string) $longitude - Longitude
 	 * @return (string) $timezone - closest timezone
 	 */
-	public static function timezone($latitude, $longitude){	
+	public static function timezone($latitude, $longitude) {
 		$alltimezones = DateTimeZone::listIdentifiers();
 		$variances = array();
 		//calculate for all timezones the system know
-		foreach($alltimezones as $timezone){
+		foreach($alltimezones as $timezone) {
 			$datetimezoneobj = new DateTimeZone($timezone);
 			$locationinformations = $datetimezoneobj->getLocation();
 			$latitudeoftimezone = $locationinformations['latitude'];
diff --git a/lib/group.php b/lib/group.php
index 72cf5dc89af..b56a4ad456c 100644
--- a/lib/group.php
+++ b/lib/group.php
@@ -42,8 +42,8 @@ class OC_Group {
 	 * @param  string  $backend  The backend to use for user managment
 	 * @returns true/false
 	 */
-	public static function useBackend( $backend ){
-		if($backend instanceof OC_Group_Interface){
+	public static function useBackend( $backend ) {
+		if($backend instanceof OC_Group_Interface) {
 			self::$_usedBackends[]=$backend;
 		}
 	}
@@ -51,7 +51,7 @@ class OC_Group {
 	/**
 	 * remove all used backends
 	 */
-	public static function clearBackends(){
+	public static function clearBackends() {
 		self::$_usedBackends=array();
 	}
 
@@ -65,27 +65,27 @@ class OC_Group {
 	 *
 	 * Allowed characters in the username are: "a-z", "A-Z", "0-9" and "_.@-"
 	 */
-	public static function createGroup( $gid ){
+	public static function createGroup( $gid ) {
 		// Check the name for bad characters
 		// Allowed are: "a-z", "A-Z", "0-9" and "_.@-"
-		if( preg_match( '/[^a-zA-Z0-9 _\.@\-]/', $gid )){
+		if( preg_match( '/[^a-zA-Z0-9 _\.@\-]/', $gid )) {
 			return false;
 		}
 		// No empty group names!
-		if( !$gid ){
+		if( !$gid ) {
 			return false;
 		}
 		// No duplicate group names
-		if( in_array( $gid, self::getGroups())){
+		if( in_array( $gid, self::getGroups())) {
 			return false;
 		}
 
 		$run = true;
 		OC_Hook::emit( "OC_Group", "pre_createGroup", array( "run" => &$run, "gid" => $gid ));
 
-		if($run){
+		if($run) {
 			//create the group in the first backend that supports creating groups
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				if(!$backend->implementsActions(OC_GROUP_BACKEND_CREATE_GROUP))
 					continue;
 
@@ -106,18 +106,18 @@ class OC_Group {
 	 *
 	 * Deletes a group and removes it from the group_user-table
 	 */
-	public static function deleteGroup( $gid ){
+	public static function deleteGroup( $gid ) {
 		// Prevent users from deleting group admin
-		if( $gid == "admin" ){
+		if( $gid == "admin" ) {
 			return false;
 		}
 
 		$run = true;
 		OC_Hook::emit( "OC_Group", "pre_deleteGroup", array( "run" => &$run, "gid" => $gid ));
 
-		if($run){
+		if($run) {
 			//delete the group from all backends
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				if(!$backend->implementsActions(OC_GROUP_BACKEND_DELETE_GROUP))
 					continue;
 
@@ -139,9 +139,9 @@ class OC_Group {
 	 *
 	 * Checks whether the user is member of a group or not.
 	 */
-	public static function inGroup( $uid, $gid ){
-		foreach(self::$_usedBackends as $backend){
-			if($backend->inGroup($uid,$gid)){
+	public static function inGroup( $uid, $gid ) {
+		foreach(self::$_usedBackends as $backend) {
+			if($backend->inGroup($uid,$gid)) {
 				return true;
 			}
 		}
@@ -156,9 +156,9 @@ class OC_Group {
 	 *
 	 * Adds a user to a group.
 	 */
-	public static function addToGroup( $uid, $gid ){
+	public static function addToGroup( $uid, $gid ) {
 		// Does the group exist?
-		if( !OC_Group::groupExists($gid)){
+		if( !OC_Group::groupExists($gid)) {
 			return false;
 		}
 
@@ -166,19 +166,19 @@ class OC_Group {
 		$run = true;
 		OC_Hook::emit( "OC_Group", "pre_addToGroup", array( "run" => &$run, "uid" => $uid, "gid" => $gid ));
 
-		if($run){
+		if($run) {
 			$succes=false;
 
 			//add the user to the all backends that have the group
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				if(!$backend->implementsActions(OC_GROUP_BACKEND_ADD_TO_GROUP))
 					continue;
 
-				if($backend->groupExists($gid)){
+				if($backend->groupExists($gid)) {
 					$succes|=$backend->addToGroup($uid, $gid);
 				}
 			}
-			if($succes){
+			if($succes) {
 				OC_Hook::emit( "OC_User", "post_addToGroup", array( "uid" => $uid, "gid" => $gid ));
 			}
 			return $succes;
@@ -195,13 +195,13 @@ class OC_Group {
 	 *
 	 * removes the user from a group.
 	 */
-	public static function removeFromGroup( $uid, $gid ){
+	public static function removeFromGroup( $uid, $gid ) {
 		$run = true;
 		OC_Hook::emit( "OC_Group", "pre_removeFromGroup", array( "run" => &$run, "uid" => $uid, "gid" => $gid ));
 
-		if($run){
+		if($run) {
 			//remove the user from the all backends that have the group
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				if(!$backend->implementsActions(OC_GROUP_BACKEND_REMOVE_FROM_GOUP))
 					continue;
 
@@ -222,9 +222,9 @@ class OC_Group {
 	 * This function fetches all groups a user belongs to. It does not check
 	 * if the user exists at all.
 	 */
-	public static function getUserGroups( $uid ){
+	public static function getUserGroups( $uid ) {
 		$groups=array();
-		foreach(self::$_usedBackends as $backend){
+		foreach(self::$_usedBackends as $backend) {
 			$groups=array_merge($backend->getUserGroups($uid),$groups);
 		}
 		asort($groups);
@@ -251,9 +251,9 @@ class OC_Group {
 	 * @param string $gid
 	 * @return bool
 	 */
-	public static function groupExists($gid){
-		foreach(self::$_usedBackends as $backend){
-			if ($backend->groupExists($gid)){
+	public static function groupExists($gid) {
+		foreach(self::$_usedBackends as $backend) {
+			if ($backend->groupExists($gid)) {
 				return true;
 			}
 		}
@@ -266,12 +266,12 @@ class OC_Group {
 	 */
 	public static function usersInGroup($gid, $search = '', $limit = -1, $offset = 0) {
 		$users=array();
-		foreach(self::$_usedBackends as $backend){
+		foreach(self::$_usedBackends as $backend) {
 			$users = array_merge($backend->usersInGroup($gid, $search, $limit, $offset), $users);
 		}
 		return $users;
 	}
-	
+
 	/**
 	 * @brief get a list of all users in several groups
 	 * @param array $gids
diff --git a/lib/group/backend.php b/lib/group/backend.php
index 5969986c652..1ba34c940cf 100644
--- a/lib/group/backend.php
+++ b/lib/group/backend.php
@@ -52,9 +52,9 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	* Returns the supported actions as int to be
 	* compared with OC_USER_BACKEND_CREATE_USER etc.
 	*/
-	public function getSupportedActions(){
+	public function getSupportedActions() {
 		$actions = 0;
-		foreach($this->possibleActions AS $action => $methodName){
+		foreach($this->possibleActions AS $action => $methodName) {
 			if(method_exists($this, $methodName)) {
 				$actions |= $action;
 			}
@@ -71,7 +71,7 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	* Returns the supported actions as int to be
 	* compared with OC_GROUP_BACKEND_CREATE_GROUP etc.
 	*/
-	public function implementsActions($actions){
+	public function implementsActions($actions) {
 		return (bool)($this->getSupportedActions() & $actions);
 	}
 
@@ -83,7 +83,7 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	 *
 	 * Checks whether the user is member of a group or not.
 	 */
-	public function inGroup($uid, $gid){
+	public function inGroup($uid, $gid) {
 		return in_array($gid, $this->getUserGroups($uid));
 	}
 
@@ -95,7 +95,7 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	 * This function fetches all groups a user belongs to. It does not check
 	 * if the user exists at all.
 	 */
-	public function getUserGroups($uid){
+	public function getUserGroups($uid) {
 		return array();
 	}
 
@@ -115,7 +115,7 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	 * @param string $gid
 	 * @return bool
 	 */
-	public function groupExists($gid){
+	public function groupExists($gid) {
 		return in_array($gid, $this->getGroups($gid, 1));
 	}
 
diff --git a/lib/group/database.php b/lib/group/database.php
index 52608b2db73..f3012563acf 100644
--- a/lib/group/database.php
+++ b/lib/group/database.php
@@ -50,12 +50,12 @@ class OC_Group_Database extends OC_Group_Backend {
 	 * Trys to create a new group. If the group name already exists, false will
 	 * be returned.
 	 */
-	public function createGroup( $gid ){
+	public function createGroup( $gid ) {
 		// Check for existence
 		$stmt = OC_DB::prepare( "SELECT `gid` FROM `*PREFIX*groups` WHERE `gid` = ?" );
 		$result = $stmt->execute( array( $gid ));
 
-		if( $result->fetchRow() ){
+		if( $result->fetchRow() ) {
 			// Can not add an existing group
 			return false;
 		}
@@ -75,7 +75,7 @@ class OC_Group_Database extends OC_Group_Backend {
 	 *
 	 * Deletes a group and removes it from the group_user-table
 	 */
-	public function deleteGroup( $gid ){
+	public function deleteGroup( $gid ) {
 		// Delete the group
 		$stmt = OC_DB::prepare( "DELETE FROM `*PREFIX*groups` WHERE `gid` = ?" );
 		$result = $stmt->execute( array( $gid ));
@@ -95,7 +95,7 @@ class OC_Group_Database extends OC_Group_Backend {
 	 *
 	 * Checks whether the user is member of a group or not.
 	 */
-	public function inGroup( $uid, $gid ){
+	public function inGroup( $uid, $gid ) {
 		// check
 		$stmt = OC_DB::prepare( "SELECT `uid` FROM `*PREFIX*group_user` WHERE `gid` = ? AND `uid` = ?" );
 		$result = $stmt->execute( array( $gid, $uid ));
@@ -111,9 +111,9 @@ class OC_Group_Database extends OC_Group_Backend {
 	 *
 	 * Adds a user to a group.
 	 */
-	public function addToGroup( $uid, $gid ){
+	public function addToGroup( $uid, $gid ) {
 		// No duplicate entries!
-		if( !$this->inGroup( $uid, $gid )){
+		if( !$this->inGroup( $uid, $gid )) {
 			$stmt = OC_DB::prepare( "INSERT INTO `*PREFIX*group_user` ( `uid`, `gid` ) VALUES( ?, ? )" );
 			$stmt->execute( array( $uid, $gid ));
 			return true;
@@ -130,7 +130,7 @@ class OC_Group_Database extends OC_Group_Backend {
 	 *
 	 * removes the user from a group.
 	 */
-	public function removeFromGroup( $uid, $gid ){
+	public function removeFromGroup( $uid, $gid ) {
 		$stmt = OC_DB::prepare( "DELETE FROM `*PREFIX*group_user` WHERE `uid` = ? AND `gid` = ?" );
 		$stmt->execute( array( $uid, $gid ));
 
@@ -145,13 +145,13 @@ class OC_Group_Database extends OC_Group_Backend {
 	 * This function fetches all groups a user belongs to. It does not check
 	 * if the user exists at all.
 	 */
-	public function getUserGroups( $uid ){
+	public function getUserGroups( $uid ) {
 		// No magic!
 		$stmt = OC_DB::prepare( "SELECT `gid` FROM `*PREFIX*group_user` WHERE `uid` = ?" );
 		$result = $stmt->execute( array( $uid ));
 
 		$groups = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$groups[] = $row["gid"];
 		}
 
diff --git a/lib/group/dummy.php b/lib/group/dummy.php
index 51eca28f3f4..8116dcbd675 100644
--- a/lib/group/dummy.php
+++ b/lib/group/dummy.php
@@ -34,8 +34,8 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 * Trys to create a new group. If the group name already exists, false will
 	 * be returned.
 	 */
-	public function createGroup($gid){
-		if(!isset($this->groups[$gid])){
+	public function createGroup($gid) {
+		if(!isset($this->groups[$gid])) {
 			$this->groups[$gid]=array();
 			return true;
 		}else{
@@ -50,8 +50,8 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 *
 	 * Deletes a group and removes it from the group_user-table
 	 */
-	public function deleteGroup($gid){
-		if(isset($this->groups[$gid])){
+	public function deleteGroup($gid) {
+		if(isset($this->groups[$gid])) {
 			unset($this->groups[$gid]);
 			return true;
 		}else{
@@ -67,8 +67,8 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 *
 	 * Checks whether the user is member of a group or not.
 	 */
-	public function inGroup($uid, $gid){
-		if(isset($this->groups[$gid])){
+	public function inGroup($uid, $gid) {
+		if(isset($this->groups[$gid])) {
 			return (array_search($uid,$this->groups[$gid])!==false);
 		}else{
 			return false;
@@ -83,9 +83,9 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 *
 	 * Adds a user to a group.
 	 */
-	public function addToGroup($uid, $gid){
-		if(isset($this->groups[$gid])){
-			if(array_search($uid,$this->groups[$gid])===false){
+	public function addToGroup($uid, $gid) {
+		if(isset($this->groups[$gid])) {
+			if(array_search($uid,$this->groups[$gid])===false) {
 				$this->groups[$gid][]=$uid;
 				return true;
 			}else{
@@ -104,9 +104,9 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 *
 	 * removes the user from a group.
 	 */
-	public function removeFromGroup($uid,$gid){
-		if(isset($this->groups[$gid])){
-			if(($index=array_search($uid,$this->groups[$gid]))!==false){
+	public function removeFromGroup($uid,$gid) {
+		if(isset($this->groups[$gid])) {
+			if(($index=array_search($uid,$this->groups[$gid]))!==false) {
 				unset($this->groups[$gid][$index]);
 			}else{
 				return false;
@@ -124,11 +124,11 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 * This function fetches all groups a user belongs to. It does not check
 	 * if the user exists at all.
 	 */
-	public function getUserGroups($uid){
+	public function getUserGroups($uid) {
 		$groups=array();
 		$allGroups=array_keys($this->groups);
-		foreach($allGroups as $group){
-			if($this->inGroup($uid,$group)){
+		foreach($allGroups as $group) {
+			if($this->inGroup($uid,$group)) {
 				$groups[]=$group;
 			}
 		}
@@ -150,7 +150,7 @@ class OC_Group_Dummy extends OC_Group_Backend {
 	 * @returns array with user ids
 	 */
 	public function usersInGroup($gid, $search = '', $limit = -1, $offset = 0) {
-		if(isset($this->groups[$gid])){
+		if(isset($this->groups[$gid])) {
 			return $this->groups[$gid];
 		}else{
 			return array();
diff --git a/lib/helper.php b/lib/helper.php
index 3cf464dfa7b..70b2f78862b 100644
--- a/lib/helper.php
+++ b/lib/helper.php
@@ -32,16 +32,17 @@ class OC_Helper {
 	 * @brief Creates an url
 	 * @param $app app
 	 * @param $file file
+	 * @param $args array with param=>value, will be appended to the returned url
 	 * @returns the url
 	 *
 	 * Returns a url to the given app and file.
 	 */
-	public static function linkTo( $app, $file ){
-		if( $app != '' ){
+	public static function linkTo( $app, $file, $args = array() ) {
+		if( $app != '' ) {
 			$app_path = OC_App::getAppPath($app);
 			// Check if the app is in the app folder
-			if( $app_path && file_exists( $app_path.'/'.$file )){
-				if(substr($file, -3) == 'php' || substr($file, -3) == 'css'){
+			if( $app_path && file_exists( $app_path.'/'.$file )) {
+				if(substr($file, -3) == 'php' || substr($file, -3) == 'css') {
 					$urlLinkTo =  OC::$WEBROOT . '/?app=' . $app;
 					$urlLinkTo .= ($file!='index.php')?'&getfile=' . urlencode($file):'';
 				}else{
@@ -53,7 +54,7 @@ class OC_Helper {
 			}
 		}
 		else{
-			if( file_exists( OC::$SERVERROOT . '/core/'. $file )){
+			if( file_exists( OC::$SERVERROOT . '/core/'. $file )) {
 				$urlLinkTo =  OC::$WEBROOT . '/core/'.$file;
 			}
 			else{
@@ -61,6 +62,10 @@ class OC_Helper {
 			}
 		}
 
+		foreach($args as $k => $v) {
+			$urlLinkTo .= '&'.$k.'='.$v;
+		}
+
 		return $urlLinkTo;
 	}
 
@@ -68,12 +73,13 @@ class OC_Helper {
 	 * @brief Creates an absolute url
 	 * @param $app app
 	 * @param $file file
+	 * @param $args array with param=>value, will be appended to the returned url
 	 * @returns the url
 	 *
 	 * Returns a absolute url to the given app and file.
 	 */
-	public static function linkToAbsolute( $app, $file ) {
-		$urlLinkTo = self::linkTo( $app, $file );
+	public static function linkToAbsolute( $app, $file, $args = array() ) {
+		$urlLinkTo = self::linkTo( $app, $file, $args );
 		return self::makeURLAbsolute($urlLinkTo);
 	}
 
@@ -119,22 +125,22 @@ class OC_Helper {
 	 *
 	 * Returns the path to the image.
 	 */
-	public static function imagePath( $app, $image ){
+	public static function imagePath( $app, $image ) {
 		// Read the selected theme from the config file
 		$theme=OC_Config::getValue( "theme" );
 
 		// Check if the app is in the app folder
-		if( file_exists( OC::$SERVERROOT."/themes/$theme/apps/$app/img/$image" )){
+		if( file_exists( OC::$SERVERROOT."/themes/$theme/apps/$app/img/$image" )) {
 			return OC::$WEBROOT."/themes/$theme/apps/$app/img/$image";
-		}elseif( file_exists(OC_App::getAppPath($app)."/img/$image" )){
+		}elseif( file_exists(OC_App::getAppPath($app)."/img/$image" )) {
 			return OC_App::getAppWebPath($app)."/img/$image";
-		}elseif( !empty( $app ) and file_exists( OC::$SERVERROOT."/themes/$theme/$app/img/$image" )){
+		}elseif( !empty( $app ) and file_exists( OC::$SERVERROOT."/themes/$theme/$app/img/$image" )) {
 			return OC::$WEBROOT."/themes/$theme/$app/img/$image";
-		}elseif( !empty( $app ) and file_exists( OC::$SERVERROOT."/$app/img/$image" )){
+		}elseif( !empty( $app ) and file_exists( OC::$SERVERROOT."/$app/img/$image" )) {
 			return OC::$WEBROOT."/$app/img/$image";
-		}elseif( file_exists( OC::$SERVERROOT."/themes/$theme/core/img/$image" )){
+		}elseif( file_exists( OC::$SERVERROOT."/themes/$theme/core/img/$image" )) {
 			return OC::$WEBROOT."/themes/$theme/core/img/$image";
-		}elseif( file_exists( OC::$SERVERROOT."/core/img/$image" )){
+		}elseif( file_exists( OC::$SERVERROOT."/core/img/$image" )) {
 			return OC::$WEBROOT."/core/img/$image";
 		}else{
 			echo('image not found: image:'.$image.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
@@ -149,26 +155,26 @@ class OC_Helper {
 	 *
 	 * Returns the path to the image of this file type.
 	 */
-	public static function mimetypeIcon( $mimetype ){
+	public static function mimetypeIcon( $mimetype ) {
 		$alias=array('application/xml'=>'code/xml');
-		if(isset($alias[$mimetype])){
+		if(isset($alias[$mimetype])) {
 			$mimetype=$alias[$mimetype];
 		}
 		// Replace slash with a minus
 		$mimetype = str_replace( "/", "-", $mimetype );
 
 		// Is it a dir?
-		if( $mimetype == "dir" ){
+		if( $mimetype == "dir" ) {
 			return OC::$WEBROOT."/core/img/filetypes/folder.png";
 		}
 
 		// Icon exists?
-		if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.png" )){
+		if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.png" )) {
 			return OC::$WEBROOT."/core/img/filetypes/$mimetype.png";
 		}
 		//try only the first part of the filetype
 		$mimetype=substr($mimetype,0,strpos($mimetype,'-'));
-		if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.png" )){
+		if( file_exists( OC::$SERVERROOT."/core/img/filetypes/$mimetype.png" )) {
 			return OC::$WEBROOT."/core/img/filetypes/$mimetype.png";
 		}
 		else{
@@ -183,16 +189,16 @@ class OC_Helper {
 	 *
 	 * Makes 2048 to 2 kB.
 	 */
-	public static function humanFileSize( $bytes ){
-		if( $bytes < 1024 ){
+	public static function humanFileSize( $bytes ) {
+		if( $bytes < 1024 ) {
 			return "$bytes B";
 		}
 		$bytes = round( $bytes / 1024, 1 );
-		if( $bytes < 1024 ){
+		if( $bytes < 1024 ) {
 			return "$bytes kB";
 		}
 		$bytes = round( $bytes / 1024, 1 );
-		if( $bytes < 1024 ){
+		if( $bytes < 1024 ) {
 			return "$bytes MB";
 		}
 
@@ -210,7 +216,7 @@ class OC_Helper {
 	 *
 	 * Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
 	 */
-	public static function computerFileSize( $str ){
+	public static function computerFileSize( $str ) {
 		$bytes = 0;
 		$str=strtolower($str);
 
@@ -274,17 +280,17 @@ class OC_Helper {
 	 *
 	 */
 	static function copyr($src, $dest) {
-		if(is_dir($src)){
-			if(!is_dir($dest)){
+		if(is_dir($src)) {
+			if(!is_dir($dest)) {
 				mkdir($dest);
 			}
 			$files = scandir($src);
-			foreach ($files as $file){
-				if ($file != "." && $file != ".."){
+			foreach ($files as $file) {
+				if ($file != "." && $file != "..") {
 					self::copyr("$src/$file", "$dest/$file");
 				}
 			}
-		}elseif(file_exists($src)){
+		}elseif(file_exists($src)) {
 			copy($src, $dest);
 		}
 	}
@@ -297,13 +303,13 @@ class OC_Helper {
 	static function rmdirr($dir) {
 		if(is_dir($dir)) {
 			$files=scandir($dir);
-			foreach($files as $file){
-				if ($file != "." && $file != ".."){
+			foreach($files as $file) {
+				if ($file != "." && $file != "..") {
 					self::rmdirr("$dir/$file");
 				}
 			}
 			rmdir($dir);
-		}elseif(file_exists($dir)){
+		}elseif(file_exists($dir)) {
 			unlink($dir);
 		}
 		if(file_exists($dir)) {
@@ -317,7 +323,7 @@ class OC_Helper {
 	 * @return string
 	 * does NOT work for ownClouds filesystem, use OC_FileSystem::getMimeType instead
 	 */
-	static function getMimeType($path){
+	static function getMimeType($path) {
 		$isWrapped=(strpos($path,'://')!==false) and (substr($path,0,7)=='file://');
 
 		if (@is_dir($path)) {
@@ -325,9 +331,9 @@ class OC_Helper {
 			return "httpd/unix-directory";
 		}
 
-		if(strpos($path,'.')){
+		if(strpos($path,'.')) {
 			//try to guess the type by the file extension
-			if(!self::$mimetypes || self::$mimetypes != include('mimetypes.list.php')){
+			if(!self::$mimetypes || self::$mimetypes != include('mimetypes.list.php')) {
 				self::$mimetypes=include('mimetypes.list.php');
 			}
 			$extension=strtolower(strrchr(basename($path), "."));
@@ -337,9 +343,9 @@ class OC_Helper {
 			$mimeType='application/octet-stream';
 		}
 
-		if($mimeType=='application/octet-stream' and function_exists('finfo_open') and function_exists('finfo_file') and $finfo=finfo_open(FILEINFO_MIME)){
+		if($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,$path));
-			if($info){
+			if($info) {
 				$mimeType=substr($info,0,strpos($info,';'));
 			}
 			finfo_close($finfo);
@@ -373,8 +379,8 @@ class OC_Helper {
 	 * @param string data
 	 * @return string
 	 */
-	static function getStringMimeType($data){
-		if(function_exists('finfo_open') and function_exists('finfo_file')){
+	static function getStringMimeType($data) {
+		if(function_exists('finfo_open') and function_exists('finfo_file')) {
 			$finfo=finfo_open(FILEINFO_MIME);
 			return finfo_buffer($finfo, $data);
 		}else{
@@ -423,7 +429,7 @@ class OC_Helper {
 	* @param  string  optional search path, defaults to $PATH
 	* @return bool    true if executable program found in path
 	*/
-	public static function canExecute($name, $path = false){
+	public static function canExecute($name, $path = false) {
 		// path defaults to PATH from environment if not set
 		if ($path === false) {
 			$path = getenv("PATH");
@@ -467,12 +473,12 @@ class OC_Helper {
 	 * @param resource target
 	 * @return int the number of bytes copied
 	 */
-	public static function streamCopy($source,$target){
-		if(!$source or !$target){
+	public static function streamCopy($source,$target) {
+		if(!$source or !$target) {
 			return false;
 		}
 		$count=0;
-		while(!feof($source)){
+		while(!feof($source)) {
 			$count+=fwrite($target,fread($source,8192));
 		}
 		return $count;
@@ -485,7 +491,7 @@ class OC_Helper {
 	 *
 	 * temporary files are automatically cleaned up after the script is finished
 	 */
-	public static function tmpFile($postfix=''){
+	public static function tmpFile($postfix='') {
 		$file=get_temp_dir().'/'.md5(time().rand()).$postfix;
 		$fh=fopen($file,'w');
 		fclose($fh);
@@ -499,7 +505,7 @@ class OC_Helper {
 	 *
 	 * temporary files are automatically cleaned up after the script is finished
 	 */
-	public static function tmpFolder(){
+	public static function tmpFolder() {
 		$path=get_temp_dir().'/'.md5(time().rand());
 		mkdir($path);
 		self::$tmpFiles[]=$path;
@@ -509,9 +515,9 @@ class OC_Helper {
 	/**
 	 * remove all files created by self::tmpFile
 	 */
-	public static function cleanTmp(){
+	public static function cleanTmp() {
 		$leftoversFile=get_temp_dir().'/oc-not-deleted';
-		if(file_exists($leftoversFile)){
+		if(file_exists($leftoversFile)) {
 			$leftovers=file($leftoversFile);
 			foreach($leftovers as $file) {
 				self::rmdirr($file);
@@ -519,8 +525,8 @@ class OC_Helper {
 			unlink($leftoversFile);
 		}
 
-		foreach(self::$tmpFiles as $file){
-			if(file_exists($file)){
+		foreach(self::$tmpFiles as $file) {
+			if(file_exists($file)) {
 				if(!self::rmdirr($file)) {
 					file_put_contents($leftoversFile, $file."\n", FILE_APPEND);
 				}
@@ -535,8 +541,8 @@ class OC_Helper {
 	* @param $filename
 	* @return string
 	*/
-	public static function buildNotExistingFileName($path, $filename){
-		if($path==='/'){
+	public static function buildNotExistingFileName($path, $filename) {
+		if($path==='/') {
 			$path='';
 		}
 		if ($pos = strrpos($filename, '.')) {
@@ -565,21 +571,21 @@ class OC_Helper {
 	 * @param $parent
 	 * @return bool
 	 */
-	public static function issubdirectory($sub, $parent){
-		if($sub == null || $sub == '' || $parent == null || $parent == ''){
+	public static function issubdirectory($sub, $parent) {
+		if($sub == null || $sub == '' || $parent == null || $parent == '') {
 			return false;
 		}
 		$realpath_sub = realpath($sub);
 		$realpath_parent = realpath($parent);
-		if(($realpath_sub == false && substr_count($realpath_sub, './') != 0) || ($realpath_parent == false && substr_count($realpath_parent, './') != 0)){ //it checks for  both ./ and ../
+		if(($realpath_sub == false && substr_count($realpath_sub, './') != 0) || ($realpath_parent == false && substr_count($realpath_parent, './') != 0)) { //it checks for  both ./ and ../
 			return false;
 		}
-		if($realpath_sub && $realpath_sub != '' && $realpath_parent && $realpath_parent != ''){
-			if(substr($realpath_sub, 0, strlen($realpath_parent)) == $realpath_parent){
+		if($realpath_sub && $realpath_sub != '' && $realpath_parent && $realpath_parent != '') {
+			if(substr($realpath_sub, 0, strlen($realpath_parent)) == $realpath_parent) {
 				return true;
 			}
 		}else{
-			if(substr($sub, 0, strlen($parent)) == $parent){
+			if(substr($sub, 0, strlen($parent)) == $parent) {
 				return true;
 			}
 		}
@@ -604,7 +610,7 @@ class OC_Helper {
 	* based on http://www.php.net/manual/en/function.array-change-key-case.php#107715
 	*
 	*/
-	public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8'){
+	public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') {
 		$case = ($case != MB_CASE_UPPER) ? MB_CASE_LOWER : MB_CASE_UPPER;
 		$ret = array();
 		foreach ($input as $k => $v) {
diff --git a/lib/hook.php b/lib/hook.php
index b53755310e0..1bf80f604f6 100644
--- a/lib/hook.php
+++ b/lib/hook.php
@@ -19,12 +19,12 @@ class OC_Hook{
 	 *
 	 * TODO: write example
 	 */
-	static public function connect( $signalclass, $signalname, $slotclass, $slotname ){
+	static public function connect( $signalclass, $signalname, $slotclass, $slotname ) {
 		// Create the data structure
-		if( !array_key_exists( $signalclass, self::$registered )){
+		if( !array_key_exists( $signalclass, self::$registered )) {
 			self::$registered[$signalclass] = array();
 		}
-		if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
+		if( !array_key_exists( $signalname, self::$registered[$signalclass] )) {
 			self::$registered[$signalclass][$signalname] = array();
 		}
 
@@ -48,17 +48,17 @@ class OC_Hook{
 	 *
 	 * TODO: write example
 	 */
-	static public function emit( $signalclass, $signalname, $params = array()){
+	static public function emit( $signalclass, $signalname, $params = array()) {
 		// Return false if there are no slots
-		if( !array_key_exists( $signalclass, self::$registered )){
+		if( !array_key_exists( $signalclass, self::$registered )) {
 			return false;
 		}
-		if( !array_key_exists( $signalname, self::$registered[$signalclass] )){
+		if( !array_key_exists( $signalname, self::$registered[$signalclass] )) {
 			return false;
 		}
 
 		// Call all slots
-		foreach( self::$registered[$signalclass][$signalname] as $i ){
+		foreach( self::$registered[$signalclass][$signalname] as $i ) {
 			call_user_func( array( $i["class"], $i["name"] ), $params );
 		}
 
@@ -71,9 +71,9 @@ class OC_Hook{
 	 * @param string signalclass
 	 * @param string signalname
 	 */
-	static public function clear($signalclass='', $signalname=''){
-		if($signalclass){
-			if($signalname){
+	static public function clear($signalclass='', $signalname='') {
+		if($signalclass) {
+			if($signalname) {
 				self::$registered[$signalclass][$signalname]=array();
 			}else{
 				self::$registered[$signalclass]=array();
@@ -83,4 +83,3 @@ class OC_Hook{
 		}
 	}
 }
- 
diff --git a/lib/image.php b/lib/image.php
index 90c64320a7c..861353e039d 100644
--- a/lib/image.php
+++ b/lib/image.php
@@ -262,7 +262,7 @@ class OC_Image {
 	* @returns The orientation or -1 if no EXIF data is available.
 	*/
 	public function getOrientation() {
-		if(!is_callable('exif_read_data')){
+		if(!is_callable('exif_read_data')) {
 			OC_Log::write('core','OC_Image->fixOrientation() Exif module not enabled.', OC_Log::DEBUG);
 			return -1;
 		}
@@ -383,7 +383,7 @@ class OC_Image {
 	/**
 	* @brief Loads an image from an open file handle.
 	* It is the responsibility of the caller to position the pointer at the correct place and to close the handle again.
-	* @param $handle 
+	* @param $handle
 	* @returns An image resource or false on error
 	*/
 	public function loadFromFileHandle($handle) {
@@ -468,7 +468,7 @@ class OC_Image {
 				break;
 			*/
 			default:
-			
+
 				// this is mostly file created from encrypted file
 				$this->resource = imagecreatefromstring(\OC_Filesystem::file_get_contents(\OC_Filesystem::getLocalPath($imagepath)));
 				$itype = IMAGETYPE_PNG;
@@ -534,7 +534,7 @@ class OC_Image {
 		$width_orig=imageSX($this->resource);
 		$height_orig=imageSY($this->resource);
 		$ratio_orig = $width_orig/$height_orig;
-		
+
 		if ($ratio_orig > 1) {
 			$new_height = round($maxsize/$ratio_orig);
 			$new_width = $maxsize;
@@ -543,28 +543,14 @@ class OC_Image {
 			$new_height = $maxsize;
 		}
 
-		$process = imagecreatetruecolor(round($new_width), round($new_height));
-		if ($process == false) {
-			OC_Log::write('core',__METHOD__.'(): Error creating true color image',OC_Log::ERROR);
-			imagedestroy($process);
-			return false;
-		}
-
-		imagecopyresampled($process, $this->resource, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig);
-		if ($process == false) {
-			OC_Log::write('core',__METHOD__.'(): Error resampling process image '.$new_width.'x'.$new_height,OC_Log::ERROR);
-			imagedestroy($process);
-			return false;
-		}
-		imagedestroy($this->resource);
-		$this->resource = $process;
+		$this->preciseResize(round($new_width), round($new_height));
 		return true;
 	}
 
 	public function preciseResize($width, $height) {
 		if (!$this->valid()) {
 			OC_Log::write('core',__METHOD__.'(): No image loaded', OC_Log::ERROR);
-			return false;			
+			return false;
 		}
 		$width_orig=imageSX($this->resource);
 		$height_orig=imageSY($this->resource);
@@ -612,7 +598,7 @@ class OC_Image {
 			$y = ($height_orig/2) - ($height/2);
 			$x = 0;
 		}
-		if($size>0){
+		if($size>0) {
 			$targetWidth=$size;
 			$targetHeight=$size;
 		}else{
@@ -666,14 +652,36 @@ class OC_Image {
 		return true;
 	}
 
-	public function destroy(){
-		if($this->valid()){
+	/**
+	 * @brief Resizes the image to fit within a boundry while preserving ratio.
+	 * @param $maxWidth
+	 * @param $maxHeight
+	 * @returns bool
+	 */
+	public function fitIn($maxWidth, $maxHeight) {
+		if(!$this->valid()) {
+			OC_Log::write('core',__METHOD__.'(): No image loaded', OC_Log::ERROR);
+			return false;
+		}
+		$width_orig=imageSX($this->resource);
+		$height_orig=imageSY($this->resource);
+		$ratio = $width_orig/$height_orig;
+
+		$newWidth = min($maxWidth, $ratio*$maxHeight);
+		$newHeight = min($maxHeight, $maxWidth/$ratio);
+		
+		$this->preciseResize(round($newWidth), round($newHeight));
+		return true;
+	}
+
+	public function destroy() {
+		if($this->valid()) {
 			imagedestroy($this->resource);
 		}
 		$this->resource=null;
 	}
 
-	public function __destruct(){
+	public function __destruct() {
 		$this->destroy();
 	}
 }
diff --git a/lib/installer.php b/lib/installer.php
index b8a3226aa0b..9135c60fc05 100644
--- a/lib/installer.php
+++ b/lib/installer.php
@@ -55,22 +55,22 @@ class OC_Installer{
 	 * It is the task of oc_app_install to create the tables and do whatever is
 	 * needed to get the app working.
 	 */
-	public static function installApp( $data = array()){
-		if(!isset($data['source'])){
+	public static function installApp( $data = array()) {
+		if(!isset($data['source'])) {
 			OC_Log::write('core','No source specified when installing app',OC_Log::ERROR);
 			return false;
 		}
 
 		//download the file if necesary
-		if($data['source']=='http'){
+		if($data['source']=='http') {
 			$path=OC_Helper::tmpFile();
-			if(!isset($data['href'])){
+			if(!isset($data['href'])) {
 				OC_Log::write('core','No href specified when installing app from http',OC_Log::ERROR);
 				return false;
 			}
 			copy($data['href'],$path);
 		}else{
-			if(!isset($data['path'])){
+			if(!isset($data['path'])) {
 				OC_Log::write('core','No path specified when installing app from local file',OC_Log::ERROR);
 				return false;
 			}
@@ -79,10 +79,10 @@ class OC_Installer{
 
 		//detect the archive type
 		$mime=OC_Helper::getMimeType($path);
-		if($mime=='application/zip'){
+		if($mime=='application/zip') {
 			rename($path,$path.'.zip');
 			$path.='.zip';
-		}elseif($mime=='application/x-gzip'){
+		}elseif($mime=='application/x-gzip') {
 			rename($path,$path.'.tgz');
 			$path.='.tgz';
 		}else{
@@ -94,40 +94,40 @@ class OC_Installer{
 		$extractDir=OC_Helper::tmpFolder();
 		OC_Helper::rmdirr($extractDir);
 		mkdir($extractDir);
-		if($archive=OC_Archive::open($path)){
+		if($archive=OC_Archive::open($path)) {
 			$archive->extract($extractDir);
 		} else {
 			OC_Log::write('core','Failed to open archive when installing app',OC_Log::ERROR);
 			OC_Helper::rmdirr($extractDir);
-			if($data['source']=='http'){
+			if($data['source']=='http') {
 				unlink($path);
 			}
 			return false;
 		}
 
 		//load the info.xml file of the app
-		if(!is_file($extractDir.'/appinfo/info.xml')){
+		if(!is_file($extractDir.'/appinfo/info.xml')) {
 			//try to find it in a subdir
 			$dh=opendir($extractDir);
-			while($folder=readdir($dh)){
-				if($folder[0]!='.' and is_dir($extractDir.'/'.$folder)){
-					if(is_file($extractDir.'/'.$folder.'/appinfo/info.xml')){
+			while($folder=readdir($dh)) {
+				if($folder[0]!='.' and is_dir($extractDir.'/'.$folder)) {
+					if(is_file($extractDir.'/'.$folder.'/appinfo/info.xml')) {
 						$extractDir.='/'.$folder;
 					}
 				}
 			}
 		}
-		if(!is_file($extractDir.'/appinfo/info.xml')){
+		if(!is_file($extractDir.'/appinfo/info.xml')) {
 			OC_Log::write('core','App does not provide an info.xml file',OC_Log::ERROR);
 			OC_Helper::rmdirr($extractDir);
-			if($data['source']=='http'){
+			if($data['source']=='http') {
 				unlink($path);
 			}
 			return false;
 		}
 		$info=OC_App::getAppInfo($extractDir.'/appinfo/info.xml',true);
 		// check the code for not allowed calls
-		if(!OC_Installer::checkCode($info['id'],$extractDir)){
+		if(!OC_Installer::checkCode($info['id'],$extractDir)) {
 			OC_Log::write('core','App can\'t be installed because of not allowed code in the App',OC_Log::ERROR);
 			OC_Helper::rmdirr($extractDir);
 			return false;
@@ -135,17 +135,17 @@ class OC_Installer{
 
 		// check if the app is compatible with this version of ownCloud
 		$version=OC_Util::getVersion();
-		if(!isset($info['require']) or ($version[0]>$info['require'])){
+		if(!isset($info['require']) or ($version[0]>$info['require'])) {
 			OC_Log::write('core','App can\'t be installed because it is not compatible with this version of ownCloud',OC_Log::ERROR);
 			OC_Helper::rmdirr($extractDir);
 			return false;
 		}
 
 		//check if an app with the same id is already installed
-		if(self::isInstalled( $info['id'] )){
+		if(self::isInstalled( $info['id'] )) {
 			OC_Log::write('core','App already installed',OC_Log::WARN);
 			OC_Helper::rmdirr($extractDir);
-			if($data['source']=='http'){
+			if($data['source']=='http') {
 				unlink($path);
 			}
 			return false;
@@ -153,24 +153,24 @@ class OC_Installer{
 
 		$basedir=OC_App::getInstallPath().'/'.$info['id'];
 		//check if the destination directory already exists
-		if(is_dir($basedir)){
+		if(is_dir($basedir)) {
 			OC_Log::write('core','App directory already exists',OC_Log::WARN);
 			OC_Helper::rmdirr($extractDir);
-			if($data['source']=='http'){
+			if($data['source']=='http') {
 				unlink($path);
 			}
 			return false;
 		}
 
-		if(isset($data['pretent']) and $data['pretent']==true){
+		if(isset($data['pretent']) and $data['pretent']==true) {
 			return false;
 		}
 
 		//copy the app to the correct place
-		if(@!mkdir($basedir)){
+		if(@!mkdir($basedir)) {
 			OC_Log::write('core','Can\'t create app folder. Please fix permissions. ('.$basedir.')',OC_Log::ERROR);
 			OC_Helper::rmdirr($extractDir);
-			if($data['source']=='http'){
+			if($data['source']=='http') {
 				unlink($path);
 			}
 			return false;
@@ -181,12 +181,12 @@ class OC_Installer{
 		OC_Helper::rmdirr($extractDir);
 
 		//install the database
-		if(is_file($basedir.'/appinfo/database.xml')){
+		if(is_file($basedir.'/appinfo/database.xml')) {
 			OC_DB::createDbFromStructure($basedir.'/appinfo/database.xml');
 		}
 
 		//run appinfo/install.php
-		if((!isset($data['noinstall']) or $data['noinstall']==false) and file_exists($basedir.'/appinfo/install.php')){
+		if((!isset($data['noinstall']) or $data['noinstall']==false) and file_exists($basedir.'/appinfo/install.php')) {
 			include($basedir.'/appinfo/install.php');
 		}
 
@@ -195,10 +195,10 @@ class OC_Installer{
 		OC_Appconfig::setValue($info['id'],'enabled','no');
 
 		//set remote/public handelers
-		foreach($info['remote'] as $name=>$path){
+		foreach($info['remote'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'remote_'.$name, $info['id'].'/'.$path);
 		}
-		foreach($info['public'] as $name=>$path){
+		foreach($info['public'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'public_'.$name, $info['id'].'/'.$path);
 		}
 
@@ -214,9 +214,9 @@ class OC_Installer{
 	 *
 	 * Checks whether or not an app is installed, i.e. registered in apps table.
 	 */
-	public static function isInstalled( $app ){
+	public static function isInstalled( $app ) {
 
-		if( null == OC_Appconfig::getValue( $app, "installed_version" )){
+		if( null == OC_Appconfig::getValue( $app, "installed_version" )) {
 			return false;
 		}
 
@@ -250,7 +250,7 @@ class OC_Installer{
 	 *
 	 * upgrade.php can determine the current installed version of the app using "OC_Appconfig::getValue($appid,'installed_version')"
 	 */
-	public static function upgradeApp( $data = array()){
+	public static function upgradeApp( $data = array()) {
 		// TODO: write function
 		return true;
 	}
@@ -275,7 +275,7 @@ class OC_Installer{
 	 * The function will not delete preferences, tables and the configuration,
 	 * this has to be done by the function oc_app_uninstall().
 	 */
-	public static function removeApp( $name, $options = array()){
+	public static function removeApp( $name, $options = array()) {
 		// TODO: write function
 		return true;
 	}
@@ -285,16 +285,16 @@ class OC_Installer{
 	 *
 	 * This function installs all apps found in the 'apps' directory that should be enabled by default;
 	 */
-	public static function installShippedApps(){
+	public static function installShippedApps() {
 		foreach(OC::$APPSROOTS as $app_dir) {
-			if($dir = opendir( $app_dir['path'] )){
-				while( false !== ( $filename = readdir( $dir ))){
-					if( substr( $filename, 0, 1 ) != '.' and is_dir($app_dir['path']."/$filename") ){
-						if( file_exists( $app_dir['path']."/$filename/appinfo/app.php" )){
-							if(!OC_Installer::isInstalled($filename)){
+			if($dir = opendir( $app_dir['path'] )) {
+				while( false !== ( $filename = readdir( $dir ))) {
+					if( substr( $filename, 0, 1 ) != '.' and is_dir($app_dir['path']."/$filename") ) {
+						if( file_exists( $app_dir['path']."/$filename/appinfo/app.php" )) {
+							if(!OC_Installer::isInstalled($filename)) {
 								$info=OC_App::getAppInfo($filename);
 								$enabled = isset($info['default_enable']);
-								if( $enabled ){
+								if( $enabled ) {
 									OC_Installer::installShippedApp($filename);
 									OC_Appconfig::setValue($filename,'enabled','yes');
 								}
@@ -312,24 +312,24 @@ class OC_Installer{
 	 * @param string $app id of the app to install
 	 * @returns array see OC_App::getAppInfo
 	 */
-	public static function installShippedApp($app){
+	public static function installShippedApp($app) {
 		//install the database
-		if(is_file(OC_App::getAppPath($app)."/appinfo/database.xml")){
+		if(is_file(OC_App::getAppPath($app)."/appinfo/database.xml")) {
 			OC_DB::createDbFromStructure(OC_App::getAppPath($app)."/appinfo/database.xml");
 		}
 
 		//run appinfo/install.php
-		if(is_file(OC_App::getAppPath($app)."/appinfo/install.php")){
+		if(is_file(OC_App::getAppPath($app)."/appinfo/install.php")) {
 			include(OC_App::getAppPath($app)."/appinfo/install.php");
 		}
 		$info=OC_App::getAppInfo($app);
 		OC_Appconfig::setValue($app,'installed_version',OC_App::getAppVersion($app));
 
 		//set remote/public handelers
-		foreach($info['remote'] as $name=>$path){
+		foreach($info['remote'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'remote_'.$name, $app.'/'.$path);
 		}
-		foreach($info['public'] as $name=>$path){
+		foreach($info['public'] as $name=>$path) {
 			OCP\CONFIG::setAppValue('core', 'public_'.$name, $app.'/'.$path);
 		}
 
@@ -344,7 +344,7 @@ class OC_Installer{
 	 * @param string $folder the folder of the app to check
 	 * @returns true for app is o.k. and false for app is not o.k.
 	 */
-	public static function checkCode($appname,$folder){
+	public static function checkCode($appname,$folder) {
 
 		$blacklist=array(
 			'exec(',
@@ -355,7 +355,7 @@ class OC_Installer{
 		);
 
 		// is the code checker enabled?
-		if(OC_Config::getValue('appcodechecker', false)){
+		if(OC_Config::getValue('appcodechecker', false)) {
 
 			// check if grep is installed
 			$grep = exec('which grep');
diff --git a/lib/json.php b/lib/json.php
index 3d9d5c96fa3..518c3c87c49 100644
--- a/lib/json.php
+++ b/lib/json.php
@@ -11,8 +11,8 @@ class OC_JSON{
 	/**
 	 * set Content-Type header to jsonrequest
 	 */
-	public static function setContentTypeHeader($type='application/json'){
-		if (!self::$send_content_type_header){
+	public static function setContentTypeHeader($type='application/json') {
+		if (!self::$send_content_type_header) {
 			// We send json data
 			header( 'Content-Type: '.$type );
 			self::$send_content_type_header = true;
@@ -22,9 +22,9 @@ class OC_JSON{
 	/**
 	* Check if the app is enabled, send json error msg if not
 	*/
-	public static function checkAppEnabled($app){
-		if( !OC_App::isEnabled($app)){
-			$l = OC_L10N::get('core');
+	public static function checkAppEnabled($app) {
+		if( !OC_App::isEnabled($app)) {
+			$l = OC_L10N::get('lib');
 			self::error(array( 'data' => array( 'message' => $l->t('Application is not enabled') )));
 			exit();
 		}
@@ -33,9 +33,9 @@ class OC_JSON{
 	/**
 	* Check if the user is logged in, send json error msg if not
 	*/
-	public static function checkLoggedIn(){
-		if( !OC_User::isLoggedIn()){
-			$l = OC_L10N::get('core');
+	public static function checkLoggedIn() {
+		if( !OC_User::isLoggedIn()) {
+			$l = OC_L10N::get('lib');
 			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
 			exit();
 		}
@@ -45,33 +45,33 @@ class OC_JSON{
 	 * @brief Check an ajax get/post call if the request token is valid.
 	 * @return json Error msg if not valid.
 	 */
-	public static function callCheck(){
-		if( !OC_Util::isCallRegistered()){
-			$l = OC_L10N::get('core');
+	public static function callCheck() {
+		if( !OC_Util::isCallRegistered()) {
+			$l = OC_L10N::get('lib');
 			self::error(array( 'data' => array( 'message' => $l->t('Token expired. Please reload page.') )));
 			exit();
 		}
 	}
-        
+
 	/**
 	* Check if the user is a admin, send json error msg if not
 	*/
-	public static function checkAdminUser(){
+	public static function checkAdminUser() {
 		self::checkLoggedIn();
-		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )){
-			$l = OC_L10N::get('core');
+		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )) {
+			$l = OC_L10N::get('lib');
 			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
 			exit();
 		}
 	}
-        
+
 	/**
 	* Check if the user is a subadmin, send json error msg if not
 	*/
-	public static function checkSubAdminUser(){
+	public static function checkSubAdminUser() {
 		self::checkLoggedIn();
-		if(!OC_Group::inGroup(OC_User::getUser(),'admin') && !OC_SubAdmin::isSubAdmin(OC_User::getUser())){
-			$l = OC_L10N::get('core');
+		if(!OC_Group::inGroup(OC_User::getUser(),'admin') && !OC_SubAdmin::isSubAdmin(OC_User::getUser())) {
+			$l = OC_L10N::get('lib');
 			self::error(array( 'data' => array( 'message' => $l->t('Authentication error') )));
 			exit();
 		}
@@ -80,7 +80,7 @@ class OC_JSON{
 	/**
 	* Send json error msg
 	*/
-	public static function error($data = array()){
+	public static function error($data = array()) {
 		$data['status'] = 'error';
 		self::encodedPrint($data);
 	}
@@ -88,7 +88,7 @@ class OC_JSON{
 	/**
 	* Send json success msg
 	*/
-	public static function success($data = array()){
+	public static function success($data = array()) {
 		$data['status'] = 'success';
 		self::encodedPrint($data);
 	}
@@ -96,7 +96,7 @@ class OC_JSON{
 	/**
 	 * Convert OC_L10N_String to string, for use in json encodings
 	 */
-	protected static function to_string(&$value){
+	protected static function to_string(&$value) {
 		if ($value instanceof OC_L10N_String) {
 			$value = (string)$value;
 		}
@@ -105,10 +105,10 @@ class OC_JSON{
 	/**
 	* Encode and print $data in json format
 	*/
-	public static function encodedPrint($data,$setContentType=true){
+	public static function encodedPrint($data,$setContentType=true) {
 		// Disable mimesniffing, don't move this to setContentTypeHeader!
 		header( 'X-Content-Type-Options: nosniff' );
-		if($setContentType){
+		if($setContentType) {
 			self::setContentTypeHeader();
 		}
 		array_walk_recursive($data, array('OC_JSON', 'to_string'));
diff --git a/lib/l10n.php b/lib/l10n.php
index e7f5ffea0e4..90877cbd747 100644
--- a/lib/l10n.php
+++ b/lib/l10n.php
@@ -28,17 +28,17 @@ class OC_L10N{
 	 * cached instances
 	 */
 	protected static $instances=array();
-	
+
 	/**
 	 * cache
 	 */
 	protected static $cache = array();
-	
+
 	/**
 	 * The best language
 	 */
 	protected static $language = '';
-	
+
 	/**
 	 * App of this object
 	 */
@@ -53,7 +53,7 @@ class OC_L10N{
 	 * Translations
 	 */
 	private $translations = array();
-	
+
 	/**
 	 * Localization
 	 */
@@ -61,14 +61,14 @@ class OC_L10N{
 		'date' => 'd.m.Y',
 		'datetime' => 'd.m.Y H:i:s',
 		'time' => 'H:i:s');
-		
+
 	/**
 	 * get an L10N instance
 	 * @return OC_L10N
 	 */
-	public static function get($app,$lang=null){
-		if(is_null($lang)){
-			if(!isset(self::$instances[$app])){
+	public static function get($app,$lang=null) {
+		if(is_null($lang)) {
+			if(!isset(self::$instances[$app])) {
 				self::$instances[$app]=new OC_L10N($app);
 			}
 			return self::$instances[$app];
@@ -76,7 +76,7 @@ class OC_L10N{
 			return new OC_L10N($app,$lang);
 		}
 	}
-	
+
 	/**
 	 * @brief The constructor
 	 * @param $app the app requesting l10n
@@ -86,12 +86,12 @@ class OC_L10N{
 	 * If language is not set, the constructor tries to find the right
 	 * language.
 	 */
-	public function __construct($app, $lang = null){
+	public function __construct($app, $lang = null) {
 		$this->app = $app;
 		$this->lang = $lang;
 	}
-		
-	protected function init(){
+
+	protected function init() {
 		if ($this->app === true) {
 			return;
 		}
@@ -99,12 +99,12 @@ class OC_L10N{
 		$lang = $this->lang;
 		$this->app = true;
 		// Find the right language
-		if(is_null($lang)){
+		if(is_null($lang) || $lang == '') {
 			$lang = self::findLanguage($app);
 		}
 
 		// Use cache if possible
-		if(array_key_exists($app.'::'.$lang, self::$cache)){
+		if(array_key_exists($app.'::'.$lang, self::$cache)) {
 
 			$this->translations = self::$cache[$app.'::'.$lang]['t'];
 			$this->localizations = self::$cache[$app.'::'.$lang]['l'];
@@ -113,18 +113,21 @@ class OC_L10N{
 			$i18ndir = self::findI18nDir($app);
 			// Localization is in /l10n, Texts are in $i18ndir
 			// (Just no need to define date/time format etc. twice)
-			if((OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC_App::getAppPath($app).'/l10n/') || OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/core/l10n/') || OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/settings')) && file_exists($i18ndir.$lang.'.php')) {
+			if((OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC_App::getAppPath($app).'/l10n/') ||
+				OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/core/l10n/') ||
+				OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/lib/l10n/') ||
+				OC_Helper::issubdirectory($i18ndir.$lang.'.php', OC::$SERVERROOT.'/settings')) && file_exists($i18ndir.$lang.'.php')) {
 				// Include the file, save the data from $CONFIG
 				include(strip_tags($i18ndir).strip_tags($lang).'.php');
-				if(isset($TRANSLATIONS) && is_array($TRANSLATIONS)){
+				if(isset($TRANSLATIONS) && is_array($TRANSLATIONS)) {
 					$this->translations = $TRANSLATIONS;
 				}
-			} 
+			}
 
-			if(file_exists(OC::$SERVERROOT.'/core/l10n/l10n-'.$lang.'.php')){
+			if(file_exists(OC::$SERVERROOT.'/core/l10n/l10n-'.$lang.'.php')) {
 				// Include the file, save the data from $CONFIG
 				include(OC::$SERVERROOT.'/core/l10n/l10n-'.$lang.'.php');
-				if(isset($LOCALIZATIONS) && is_array($LOCALIZATIONS)){
+				if(isset($LOCALIZATIONS) && is_array($LOCALIZATIONS)) {
 					$this->localizations = array_merge($this->localizations, $LOCALIZATIONS);
 				}
 			}
@@ -134,16 +137,16 @@ class OC_L10N{
 		}
 	}
 
-	/**
-	 * @brief Translating
-	 * @param $text The text we need a translation for
-	 * @param $parameters default:array() Parameters for sprintf
-	 * @returns Translation or the same text
-	 *
-	 * Returns the translation. If no translation is found, $text will be
-	 * returned.
-	 */
-	public function t($text, $parameters = array()){
+    /**
+     * @brief Translating
+     * @param $text String The text we need a translation for
+     * @param array|\default $parameters default:array() Parameters for sprintf
+     * @return \OC_L10N_String Translation or the same text
+     *
+     * Returns the translation. If no translation is found, $text will be
+     * returned.
+     */
+	public function t($text, $parameters = array()) {
 		return new OC_L10N_String($this, $text, $parameters);
 	}
 
@@ -161,10 +164,10 @@ class OC_L10N{
 	 *
 	 *
 	 */
-	public function tA($textArray){
+	public function tA($textArray) {
 		OC_Log::write('core', 'DEPRECATED: the method tA is deprecated and will be removed soon.',OC_Log::WARN);
 		$result = array();
-		foreach($textArray as $key => $text){
+		foreach($textArray as $key => $text) {
 			$result[$key] = (string)$this->t($text);
 		}
 		return $result;
@@ -176,7 +179,7 @@ class OC_L10N{
 	 *
 	 * Returns an associative array with all translations
 	 */
-	public function getTranslations(){
+	public function getTranslations() {
 		$this->init();
 		return $this->translations;
 	}
@@ -188,7 +191,7 @@ class OC_L10N{
 	 * @returns String or false
 	 *
 	 * Returns the localized data.
-	 * 
+	 *
 	 * Implemented types:
 	 *  - date
 	 *    - Creates a date
@@ -203,9 +206,9 @@ class OC_L10N{
 	 *    - l10n-field: time
 	 *    - params: timestamp (int/string)
 	 */
-	public function l($type, $data){
+	public function l($type, $data) {
 		$this->init();
-		switch($type){
+		switch($type) {
 			// If you add something don't forget to add it to $localizations
 			// at the top of the page
 			case 'date':
@@ -230,7 +233,7 @@ class OC_L10N{
 	 * This function is useful to avoid loading thousands of files if only one
 	 * simple string is needed, for example in appinfo.php
 	 */
-	public static function selectLanguage($text){
+	public static function selectLanguage($text) {
 		$lang = self::findLanguage(array_keys($text));
 		return $text[$lang];
 	}
@@ -241,42 +244,42 @@ class OC_L10N{
 	 * @returns language
 	 *
 	 * If $app is an array, ownCloud assumes that these are the available
-	 * languages. Otherwise ownCloud tries to find the files in the l10n 
+	 * languages. Otherwise ownCloud tries to find the files in the l10n
 	 * folder.
 	 *
 	 * If nothing works it returns 'en'
 	 */
-	public static function findLanguage($app = null){
-		if(!is_array($app) && self::$language != ''){
+	public static function findLanguage($app = null) {
+		if(!is_array($app) && self::$language != '') {
 			return self::$language;
 		}
 
-		if(OC_User::getUser() && OC_Preferences::getValue(OC_User::getUser(), 'core', 'lang')){
+		if(OC_User::getUser() && OC_Preferences::getValue(OC_User::getUser(), 'core', 'lang')) {
 			$lang = OC_Preferences::getValue(OC_User::getUser(), 'core', 'lang');
 			self::$language = $lang;
-			if(is_array($app)){
+			if(is_array($app)) {
 				$available = $app;
 				$lang_exists = array_search($lang, $available) !== false;
 			}
 			else {
 				$lang_exists = self::languageExists($app, $lang);
 			}
-			if($lang_exists){
+			if($lang_exists) {
 				return $lang;
 			}
 		}
 
-		if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
+		if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
 			$accepted_languages = preg_split('/,\s*/', $_SERVER['HTTP_ACCEPT_LANGUAGE']);
-			if(is_array($app)){
+			if(is_array($app)) {
 				$available = $app;
 			}
 			else{
 				$available = self::findAvailableLanguages($app);
 			}
-			foreach($accepted_languages as $i){
+			foreach($accepted_languages as $i) {
 				$temp = explode(';', $i);
-				if(array_search($temp[0], $available) !== false){
+				if(array_search($temp[0], $available) !== false) {
 					return $temp[0];
 				}
 			}
@@ -291,12 +294,12 @@ class OC_L10N{
 	 * @param $app App that needs to be translated
 	 * @returns directory
 	 */
-	protected static function findI18nDir($app){
+	protected static function findI18nDir($app) {
 		// find the i18n dir
 		$i18ndir = OC::$SERVERROOT.'/core/l10n/';
-		if($app != ''){
+		if($app != '') {
 			// Check if the app is in the app folder
-			if(file_exists(OC_App::getAppPath($app).'/l10n/')){
+			if(file_exists(OC_App::getAppPath($app).'/l10n/')) {
 				$i18ndir = OC_App::getAppPath($app).'/l10n/';
 			}
 			else{
@@ -311,13 +314,13 @@ class OC_L10N{
 	 * @param $app App that needs to be translated
 	 * @returns array an array of available languages
 	 */
-	public static function findAvailableLanguages($app=null){
+	public static function findAvailableLanguages($app=null) {
 		$available=array('en');//english is always available
 		$dir = self::findI18nDir($app);
-		if(is_dir($dir)){
+		if(is_dir($dir)) {
 			$files=scandir($dir);
-			foreach($files as $file){
-				if(substr($file, -4, 4) == '.php'){
+			foreach($files as $file) {
+				if(substr($file, -4, 4) == '.php') {
 					$i = substr($file, 0, -4);
 					$available[] = $i;
 				}
@@ -326,12 +329,12 @@ class OC_L10N{
 		return $available;
 	}
 
-	public static function languageExists($app, $lang){
-		if ($lang == 'en'){//english is always available
+	public static function languageExists($app, $lang) {
+		if ($lang == 'en') {//english is always available
 			return true;
 		}
 		$dir = self::findI18nDir($app);
-		if(is_dir($dir)){
+		if(is_dir($dir)) {
 			return file_exists($dir.'/'.$lang.'.php');
 		}
 		return false;
diff --git a/lib/l10n/ca.php b/lib/l10n/ca.php
index 8e4c30caec9..031207227ec 100644
--- a/lib/l10n/ca.php
+++ b/lib/l10n/ca.php
@@ -21,5 +21,8 @@
 "last month" => "el mes passat",
 "months ago" => "mesos enrere",
 "last year" => "l'any passat",
-"years ago" => "fa anys"
+"years ago" => "fa anys",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s està disponible. Obtén <a href=\"%s\">més informació</a>",
+"up to date" => "actualitzat",
+"updates check is disabled" => "la comprovació d'actualitzacions està desactivada"
 );
diff --git a/lib/l10n/cs_CZ.php b/lib/l10n/cs_CZ.php
index 933dbe541f5..00815f97533 100644
--- a/lib/l10n/cs_CZ.php
+++ b/lib/l10n/cs_CZ.php
@@ -4,14 +4,14 @@
 "Settings" => "Nastavení",
 "Users" => "Uživatelé",
 "Apps" => "Aplikace",
-"Admin" => "Admin",
+"Admin" => "Administrace",
 "ZIP download is turned off." => "Stahování ZIPu je vypnuto.",
-"Files need to be downloaded one by one." => "Soubory je nutno stahovat samostatně.",
+"Files need to be downloaded one by one." => "Soubory musí být stahovány jednotlivě.",
 "Back to Files" => "Zpět k souborům",
-"Selected files too large to generate zip file." => "Vybarné soubory jsou pro vytvoření zipu příliš velké.",
+"Selected files too large to generate zip file." => "Vybrané soubory jsou příliš velké pro vytvoření zip souboru.",
 "Application is not enabled" => "Aplikace není povolena",
-"Authentication error" => "Chyba autorizace",
-"Token expired. Please reload page." => "Realce expirovala. Obnovte prosím stranu.",
+"Authentication error" => "Chyba ověření",
+"Token expired. Please reload page." => "Token vypršel. Obnovte prosím stránku.",
 "seconds ago" => "před vteřinami",
 "1 minute ago" => "před 1 minutou",
 "%d minutes ago" => "před %d minutami",
@@ -21,5 +21,8 @@
 "last month" => "minulý měsíc",
 "months ago" => "před měsíci",
 "last year" => "loni",
-"years ago" => "před lety"
+"years ago" => "před lety",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s je dostupná. Získat <a href=\"%s\">více informací</a>",
+"up to date" => "aktuální",
+"updates check is disabled" => "kontrola aktualizací je vypnuta"
 );
diff --git a/lib/l10n/da.php b/lib/l10n/da.php
new file mode 100644
index 00000000000..7a9ee26b477
--- /dev/null
+++ b/lib/l10n/da.php
@@ -0,0 +1,25 @@
+<?php $TRANSLATIONS = array(
+"Help" => "Hjælp",
+"Personal" => "Personlig",
+"Settings" => "Indstillinger",
+"Users" => "Brugere",
+"Apps" => "Apps",
+"Admin" => "Admin",
+"ZIP download is turned off." => "ZIP-download er slået fra.",
+"Files need to be downloaded one by one." => "Filer skal downloades en for en.",
+"Back to Files" => "Tilbage til Filer",
+"Selected files too large to generate zip file." => "De markerede filer er for store til at generere en ZIP-fil.",
+"Application is not enabled" => "Programmet er ikke aktiveret",
+"Authentication error" => "Adgangsfejl",
+"Token expired. Please reload page." => "Adgang er udløbet. Genindlæs siden.",
+"seconds ago" => "sekunder siden",
+"1 minute ago" => "1 minut siden",
+"%d minutes ago" => "%d minutter siden",
+"today" => "I dag",
+"yesterday" => "I går",
+"%d days ago" => "%d dage siden",
+"last month" => "Sidste måned",
+"months ago" => "måneder siden",
+"last year" => "Sidste år",
+"years ago" => "år siden"
+);
diff --git a/lib/l10n/de.php b/lib/l10n/de.php
index e77ec97df75..4a567003de2 100644
--- a/lib/l10n/de.php
+++ b/lib/l10n/de.php
@@ -21,5 +21,8 @@
 "last month" => "Letzten Monat",
 "months ago" => "Vor Monaten",
 "last year" => "Letztes Jahr",
-"years ago" => "Vor Jahren"
+"years ago" => "Vor Jahren",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s ist verfügbar. <a href=\"%s\">Weitere Informationen</a>",
+"up to date" => "aktuell",
+"updates check is disabled" => "Die Update-Überprüfung ist ausgeschaltet"
 );
diff --git a/lib/l10n/eo.php b/lib/l10n/eo.php
index 96bcb06a8d7..b3c1c52ecee 100644
--- a/lib/l10n/eo.php
+++ b/lib/l10n/eo.php
@@ -4,6 +4,7 @@
 "Settings" => "Agordo",
 "Users" => "Uzantoj",
 "Apps" => "Aplikaĵoj",
+"Admin" => "Administranto",
 "ZIP download is turned off." => "ZIP-elŝuto estas malkapabligita.",
 "Files need to be downloaded one by one." => "Dosieroj devas elŝutiĝi unuope.",
 "Back to Files" => "Reen al la dosieroj",
@@ -20,5 +21,8 @@
 "last month" => "lasta monato",
 "months ago" => "monatojn antaŭe",
 "last year" => "lasta jaro",
-"years ago" => "jarojn antaŭe"
+"years ago" => "jarojn antaŭe",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s haveblas. Ekhavu <a href=\"%s\">pli da informo</a>",
+"up to date" => "ĝisdata",
+"updates check is disabled" => "ĝisdateckontrolo estas malkapabligita"
 );
diff --git a/lib/l10n/es.php b/lib/l10n/es.php
index 174fe0720fd..6d2a310ca3b 100644
--- a/lib/l10n/es.php
+++ b/lib/l10n/es.php
@@ -21,5 +21,8 @@
 "last month" => "este mes",
 "months ago" => "hace meses",
 "last year" => "este año",
-"years ago" => "hace años"
+"years ago" => "hace años",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s está disponible. Obtén <a href=\"%s\">más información</a>",
+"up to date" => "actualizado",
+"updates check is disabled" => "comprobar actualizaciones está desactivado"
 );
diff --git a/lib/l10n/et_EE.php b/lib/l10n/et_EE.php
index d8da90a3cbf..87f222af838 100644
--- a/lib/l10n/et_EE.php
+++ b/lib/l10n/et_EE.php
@@ -21,5 +21,8 @@
 "last month" => "eelmisel kuul",
 "months ago" => "kuud tagasi",
 "last year" => "eelmisel aastal",
-"years ago" => "aastat tagasi"
+"years ago" => "aastat tagasi",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s on saadaval. Vaata <a href=\"%s\">lisainfot</a>",
+"up to date" => "ajakohane",
+"updates check is disabled" => "uuenduste kontrollimine on välja lülitatud"
 );
diff --git a/lib/l10n/eu.php b/lib/l10n/eu.php
new file mode 100644
index 00000000000..461bf458778
--- /dev/null
+++ b/lib/l10n/eu.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "Laguntza",
+"Personal" => "Pertsonala",
+"Settings" => "Ezarpenak",
+"Users" => "Erabiltzaileak",
+"Apps" => "Aplikazioak",
+"Admin" => "Admin",
+"ZIP download is turned off." => "ZIP deskarga ez dago gaituta.",
+"Files need to be downloaded one by one." => "Fitxategiak banan-banan deskargatu behar dira.",
+"Back to Files" => "Itzuli fitxategietara",
+"Selected files too large to generate zip file." => "Hautatuko fitxategiak oso handiak dira zip fitxategia sortzeko.",
+"Application is not enabled" => "Aplikazioa ez dago gaituta",
+"Authentication error" => "Autentikazio errorea",
+"Token expired. Please reload page." => "Tokena iraungitu da. Mesedez birkargatu orria.",
+"seconds ago" => "orain dela segundu batzuk",
+"1 minute ago" => "orain dela minutu 1",
+"%d minutes ago" => "orain dela %d minutu",
+"today" => "gaur",
+"yesterday" => "atzo",
+"%d days ago" => "orain dela %d egun",
+"last month" => "joan den hilabetea",
+"months ago" => "orain dela hilabete batzuk",
+"last year" => "joan den urtea",
+"years ago" => "orain dela urte batzuk",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s eskuragarri dago. Lortu <a href=\"%s\">informazio gehiago</a>",
+"up to date" => "eguneratuta",
+"updates check is disabled" => "eguneraketen egiaztapena ez dago gaituta"
+);
diff --git a/lib/l10n/fi_FI.php b/lib/l10n/fi_FI.php
index dda2c760373..6f0ebcd16e6 100644
--- a/lib/l10n/fi_FI.php
+++ b/lib/l10n/fi_FI.php
@@ -21,5 +21,8 @@
 "last month" => "viime kuussa",
 "months ago" => "kuukautta sitten",
 "last year" => "viime vuonna",
-"years ago" => "vuotta sitten"
+"years ago" => "vuotta sitten",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s on saatavilla. Lue <a href=\"%s\">lisätietoja</a>",
+"up to date" => "ajan tasalla",
+"updates check is disabled" => "päivitysten tarkistus on pois käytöstä"
 );
diff --git a/lib/l10n/fr.php b/lib/l10n/fr.php
index c674b79b959..c10259e6376 100644
--- a/lib/l10n/fr.php
+++ b/lib/l10n/fr.php
@@ -21,5 +21,8 @@
 "last month" => "le mois dernier",
 "months ago" => "il y a plusieurs mois",
 "last year" => "l'année dernière",
-"years ago" => "il y a plusieurs années"
+"years ago" => "il y a plusieurs années",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s est disponible. Obtenez <a href=\"%s\">plus d'informations</a>",
+"up to date" => "À jour",
+"updates check is disabled" => "la vérification des mises à jour est désactivée"
 );
diff --git a/lib/l10n/he.php b/lib/l10n/he.php
new file mode 100644
index 00000000000..149637d09d2
--- /dev/null
+++ b/lib/l10n/he.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "עזרה",
+"Personal" => "אישי",
+"Settings" => "הגדרות",
+"Users" => "משתמשים",
+"Apps" => "יישומים",
+"Admin" => "מנהל",
+"ZIP download is turned off." => "הורדת ZIP כבויה",
+"Files need to be downloaded one by one." => "יש להוריד את הקבצים אחד אחרי השני.",
+"Back to Files" => "חזרה לקבצים",
+"Selected files too large to generate zip file." => "הקבצים הנבחרים גדולים מידי ליצירת קובץ zip.",
+"Application is not enabled" => "יישומים אינם מופעלים",
+"Authentication error" => "שגיאת הזדהות",
+"Token expired. Please reload page." => "פג תוקף. נא לטעון שוב את הדף.",
+"seconds ago" => "שניות",
+"1 minute ago" => "לפני דקה אחת",
+"%d minutes ago" => "לפני %d דקות",
+"today" => "היום",
+"yesterday" => "אתמול",
+"%d days ago" => "לפני %d ימים",
+"last month" => "חודש שעבר",
+"months ago" => "חודשים",
+"last year" => "שנה שעברה",
+"years ago" => "שנים",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s זמין. קבלת <a href=\"%s\">מידע נוסף</a>",
+"up to date" => "עדכני",
+"updates check is disabled" => "בדיקת עדכונים מנוטרלת"
+);
diff --git a/lib/l10n/hu_HU.php b/lib/l10n/hu_HU.php
new file mode 100644
index 00000000000..eb074b79c61
--- /dev/null
+++ b/lib/l10n/hu_HU.php
@@ -0,0 +1,25 @@
+<?php $TRANSLATIONS = array(
+"Help" => "Súgó",
+"Personal" => "Személyes",
+"Settings" => "Beállítások",
+"Users" => "Felhasználók",
+"Apps" => "Alkalmazások",
+"Admin" => "Admin",
+"ZIP download is turned off." => "ZIP-letöltés letiltva",
+"Files need to be downloaded one by one." => "A file-okat egyenként kell letölteni",
+"Back to Files" => "Vissza a File-okhoz",
+"Selected files too large to generate zip file." => "Túl nagy file-ok a zip-generáláshoz",
+"Application is not enabled" => "Az alkalmazás nincs engedélyezve",
+"Authentication error" => "Hitelesítési hiba",
+"Token expired. Please reload page." => "A token lejárt. Frissítsd az oldalt.",
+"seconds ago" => "másodperccel ezelőtt",
+"1 minute ago" => "1 perccel ezelőtt",
+"%d minutes ago" => "%d perccel ezelőtt",
+"today" => "ma",
+"yesterday" => "tegnap",
+"%d days ago" => "%d évvel ezelőtt",
+"last month" => "múlt hónapban",
+"months ago" => "hónappal ezelőtt",
+"last year" => "tavaly",
+"years ago" => "évvel ezelőtt"
+);
diff --git a/lib/l10n/it.php b/lib/l10n/it.php
index 2c88818dc6c..c4c7d90610b 100644
--- a/lib/l10n/it.php
+++ b/lib/l10n/it.php
@@ -21,5 +21,8 @@
 "last month" => "il mese scorso",
 "months ago" => "mesi fa",
 "last year" => "l'anno scorso",
-"years ago" => "anni fa"
+"years ago" => "anni fa",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s è disponibile. Ottieni <a href=\"%s\">ulteriori informazioni</a>",
+"up to date" => "aggiornato",
+"updates check is disabled" => "il controllo degli aggiornamenti è disabilitato"
 );
diff --git a/lib/l10n/ja_JP.php b/lib/l10n/ja_JP.php
new file mode 100644
index 00000000000..10f7276703a
--- /dev/null
+++ b/lib/l10n/ja_JP.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "ヘルプ",
+"Personal" => "個人設定",
+"Settings" => "設定",
+"Users" => "ユーザ",
+"Apps" => "アプリ",
+"Admin" => "管理者",
+"ZIP download is turned off." => "ZIPダウンロードは無効です。",
+"Files need to be downloaded one by one." => "ファイルは1つずつダウンロードする必要があります。",
+"Back to Files" => "ファイルに戻る",
+"Selected files too large to generate zip file." => "選択したファイルはZIPファイルの生成には大きすぎます。",
+"Application is not enabled" => "アプリケーションは無効です",
+"Authentication error" => "認証エラー",
+"Token expired. Please reload page." => "トークンが無効になりました。ページを再読込してください。",
+"seconds ago" => "秒前",
+"1 minute ago" => "1分前",
+"%d minutes ago" => "%d 分前",
+"today" => "今日",
+"yesterday" => "昨日",
+"%d days ago" => "%d 日前",
+"last month" => "先月",
+"months ago" => "月前",
+"last year" => "昨年",
+"years ago" => "年前",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s が利用可能です。<a href=\"%s\">詳細情報</a> を確認ください",
+"up to date" => "最新です",
+"updates check is disabled" => "更新チェックは無効です"
+);
diff --git a/lib/l10n/nl.php b/lib/l10n/nl.php
index 01bc4d3e19f..a90fc6caa6c 100644
--- a/lib/l10n/nl.php
+++ b/lib/l10n/nl.php
@@ -21,5 +21,8 @@
 "last month" => "vorige maand",
 "months ago" => "maanden geleden",
 "last year" => "vorig jaar",
-"years ago" => "jaar geleden"
+"years ago" => "jaar geleden",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s is beschikbaar. Verkrijg <a href=\"%s\">meer informatie</a>",
+"up to date" => "Bijgewerkt",
+"updates check is disabled" => "Meest recente versie controle is uitgeschakeld"
 );
diff --git a/lib/l10n/pl.php b/lib/l10n/pl.php
new file mode 100644
index 00000000000..087aaa227d3
--- /dev/null
+++ b/lib/l10n/pl.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "Pomoc",
+"Personal" => "Osobiste",
+"Settings" => "Ustawienia",
+"Users" => "Użytkownicy",
+"Apps" => "Aplikacje",
+"Admin" => "Administrator",
+"ZIP download is turned off." => "Pobieranie ZIP jest wyłączone.",
+"Files need to be downloaded one by one." => "Pliki muszą zostać pobrane pojedynczo.",
+"Back to Files" => "Wróć do plików",
+"Selected files too large to generate zip file." => "Wybrane pliki są zbyt duże, aby wygenerować plik zip.",
+"Application is not enabled" => "Aplikacja nie jest włączona",
+"Authentication error" => "Błąd uwierzytelniania",
+"Token expired. Please reload page." => "Token wygasł. Proszę ponownie załadować stronę.",
+"seconds ago" => "sekund temu",
+"1 minute ago" => "1 minutę temu",
+"%d minutes ago" => "%d minut temu",
+"today" => "dzisiaj",
+"yesterday" => "wczoraj",
+"%d days ago" => "%d dni temu",
+"last month" => "ostatni miesiąc",
+"months ago" => "miesięcy temu",
+"last year" => "ostatni rok",
+"years ago" => "lat temu",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s jest dostępna. Uzyskaj <a href=\"%s\">więcej informacji</a>",
+"up to date" => "Aktualne",
+"updates check is disabled" => "wybór aktualizacji jest wyłączony"
+);
diff --git a/lib/l10n/ru.php b/lib/l10n/ru.php
index 07dacc598ae..74425f0e134 100644
--- a/lib/l10n/ru.php
+++ b/lib/l10n/ru.php
@@ -21,5 +21,8 @@
 "last month" => "в прошлом месяце",
 "months ago" => "месяцы назад",
 "last year" => "в прошлом году",
-"years ago" => "годы назад"
+"years ago" => "годы назад",
+"%s is available. Get <a href=\"%s\">more information</a>" => "Возможно обновление до %s. <a href=\"%s\">Подробнее</a>",
+"up to date" => "актуальная версия",
+"updates check is disabled" => "проверка обновлений отключена"
 );
diff --git a/lib/l10n/sl.php b/lib/l10n/sl.php
index fad16417253..273773f2f7b 100644
--- a/lib/l10n/sl.php
+++ b/lib/l10n/sl.php
@@ -21,5 +21,8 @@
 "last month" => "prejšnji mesec",
 "months ago" => "mesecev nazaj",
 "last year" => "lani",
-"years ago" => "let nazaj"
+"years ago" => "let nazaj",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s je na voljo. <a href=\"%s\">Več informacij.</a>",
+"up to date" => "ažuren",
+"updates check is disabled" => "preverjanje za posodobitve je onemogočeno"
 );
diff --git a/lib/l10n/string.php b/lib/l10n/string.php
index 4769790a16d..8eef10071e6 100644
--- a/lib/l10n/string.php
+++ b/lib/l10n/string.php
@@ -8,16 +8,16 @@
 
 class OC_L10N_String{
 	protected $l10n;
-	public function __construct($l10n, $text, $parameters){
+	public function __construct($l10n, $text, $parameters) {
 		$this->l10n = $l10n;
 		$this->text = $text;
 		$this->parameters = $parameters;
 
 	}
 
-	public function __toString(){
+	public function __toString() {
 		$translations = $this->l10n->getTranslations();
-		if(array_key_exists($this->text, $translations)){
+		if(array_key_exists($this->text, $translations)) {
 			return vsprintf($translations[$this->text], $this->parameters);
 		}
 		return vsprintf($this->text, $this->parameters);
diff --git a/lib/l10n/sv.php b/lib/l10n/sv.php
index cff3a63c442..3d377133f22 100644
--- a/lib/l10n/sv.php
+++ b/lib/l10n/sv.php
@@ -21,5 +21,8 @@
 "last month" => "förra månaden",
 "months ago" => "månader sedan",
 "last year" => "förra året",
-"years ago" => "år sedan"
+"years ago" => "år sedan",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s finns. Få <a href=\"%s\">mer information</a>",
+"up to date" => "uppdaterad",
+"updates check is disabled" => "uppdateringskontroll är inaktiverad"
 );
diff --git a/lib/l10n/th_TH.php b/lib/l10n/th_TH.php
index cb2610fa204..2aa2ffaba8c 100644
--- a/lib/l10n/th_TH.php
+++ b/lib/l10n/th_TH.php
@@ -21,5 +21,8 @@
 "last month" => "เดือนที่แล้ว",
 "months ago" => "เดือนมาแล้ว",
 "last year" => "ปีที่แล้ว",
-"years ago" => "ปีที่ผ่านมา"
+"years ago" => "ปีที่ผ่านมา",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s พร้อมให้ใช้งานได้แล้ว. <a href=\"%s\">ดูรายละเอียดเพิ่มเติม</a>",
+"up to date" => "ทันสมัย",
+"updates check is disabled" => "การตรวจสอบชุดอัพเดทถูกปิดใช้งานไว้"
 );
diff --git a/lib/l10n/uk.php b/lib/l10n/uk.php
index 18f6a4a623d..423aa12b2d7 100644
--- a/lib/l10n/uk.php
+++ b/lib/l10n/uk.php
@@ -20,5 +20,6 @@
 "last month" => "минулого місяця",
 "months ago" => "місяці тому",
 "last year" => "минулого року",
-"years ago" => "роки тому"
+"years ago" => "роки тому",
+"updates check is disabled" => "перевірка оновлень відключена"
 );
diff --git a/lib/l10n/vi.php b/lib/l10n/vi.php
new file mode 100644
index 00000000000..fc41d69819a
--- /dev/null
+++ b/lib/l10n/vi.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "Giúp đỡ",
+"Personal" => "Cá nhân",
+"Settings" => "Cài đặt",
+"Users" => "Người dùng",
+"Apps" => "Ứng dụng",
+"Admin" => "Quản trị",
+"ZIP download is turned off." => "Tải về ZIP đã bị tắt.",
+"Files need to be downloaded one by one." => "Tập tin cần phải được tải về từng người một.",
+"Back to Files" => "Trở lại tập tin",
+"Selected files too large to generate zip file." => "Tập tin được chọn quá lớn để tạo tập tin ZIP.",
+"Application is not enabled" => "Ứng dụng không được BẬT",
+"Authentication error" => "Lỗi xác thực",
+"Token expired. Please reload page." => "Mã Token đã hết hạn. Hãy tải lại trang.",
+"seconds ago" => "1 giây trước",
+"1 minute ago" => "1 phút trước",
+"%d minutes ago" => "%d phút trước",
+"today" => "hôm nay",
+"yesterday" => "hôm qua",
+"%d days ago" => "%d ngày trước",
+"last month" => "tháng trước",
+"months ago" => "tháng trước",
+"last year" => "năm trước",
+"years ago" => "năm trước",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s có sẵn.  <a href=\"%s\">xem thêm ở đây</a>",
+"up to date" => "đến ngày",
+"updates check is disabled" => "đã TĂT chức năng cập nhật "
+);
diff --git a/lib/l10n/zh_CN.php b/lib/l10n/zh_CN.php
index 2d05ad3567e..8229c77d2dd 100644
--- a/lib/l10n/zh_CN.php
+++ b/lib/l10n/zh_CN.php
@@ -21,5 +21,8 @@
 "last month" => "上月",
 "months ago" => "几月前",
 "last year" => "上年",
-"years ago" => "几年前"
+"years ago" => "几年前",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s 已存在. 点此 <a href=\"%s\">获取更多信息</a>",
+"up to date" => "已更新。",
+"updates check is disabled" => "检查更新功能被关闭。"
 );
diff --git a/lib/l10n/zh_TW.php b/lib/l10n/zh_TW.php
new file mode 100644
index 00000000000..c9a26a53b2a
--- /dev/null
+++ b/lib/l10n/zh_TW.php
@@ -0,0 +1,28 @@
+<?php $TRANSLATIONS = array(
+"Help" => "說明",
+"Personal" => "個人",
+"Settings" => "設定",
+"Users" => "使用者",
+"Apps" => "應用程式",
+"Admin" => "管理",
+"ZIP download is turned off." => "ZIP 下載已關閉",
+"Files need to be downloaded one by one." => "檔案需要逐一下載",
+"Back to Files" => "回到檔案列表",
+"Selected files too large to generate zip file." => "選擇的檔案太大以致於無法產生壓縮檔",
+"Application is not enabled" => "應用程式未啟用",
+"Authentication error" => "認證錯誤",
+"Token expired. Please reload page." => "Token 過期. 請重新整理頁面",
+"seconds ago" => "幾秒前",
+"1 minute ago" => "1 分鐘前",
+"%d minutes ago" => "%d 分鐘前",
+"today" => "今天",
+"yesterday" => "昨天",
+"%d days ago" => "%d 天前",
+"last month" => "上個月",
+"months ago" => "幾個月前",
+"last year" => "去年",
+"years ago" => "幾年前",
+"%s is available. Get <a href=\"%s\">more information</a>" => "%s 已經可用. 取得 <a href=\"%s\">更多資訊</a>",
+"up to date" => "最新的",
+"updates check is disabled" => "檢查更新已停用"
+);
diff --git a/lib/log/owncloud.php b/lib/log/owncloud.php
index 9eb21832c55..d4644163ad5 100644
--- a/lib/log/owncloud.php
+++ b/lib/log/owncloud.php
@@ -45,7 +45,7 @@ class OC_Log_Owncloud {
 	 */
 	public static function write($app, $message, $level) {
 		$minLevel=min(OC_Config::getValue( "loglevel", OC_Log::WARN ),OC_Log::ERROR);
-		if($level>=$minLevel){
+		if($level>=$minLevel) {
 			$entry=array('app'=>$app, 'message'=>$message, 'level'=>$level,'time'=>time());
 			$fh=fopen(self::$logFile, 'a');
 			fwrite($fh, json_encode($entry)."\n");
@@ -59,7 +59,7 @@ class OC_Log_Owncloud {
 	 * @param int offset
 	 * @return array
 	 */
-	public static function getEntries($limit=50, $offset=0){
+	public static function getEntries($limit=50, $offset=0) {
 		self::init();
 		$minLevel=OC_Config::getValue( "loglevel", OC_Log::WARN );
 		$entries = array();
diff --git a/lib/mail.php b/lib/mail.php
index 0ac9a97c1bf..8d30fff9f28 100644
--- a/lib/mail.php
+++ b/lib/mail.php
@@ -12,12 +12,12 @@
  * A class to handle mail sending.
  */
 
-require_once('class.phpmailer.php');
+require_once 'class.phpmailer.php';
 
 class OC_Mail {
 
 	/**
-	 * send an email 
+	 * send an email
 	 *
 	 * @param string $toaddress
 	 * @param string $toname
@@ -31,17 +31,17 @@ class OC_Mail {
 
 		$SMTPMODE = OC_Config::getValue( 'mail_smtpmode', 'sendmail' );
 		$SMTPHOST = OC_Config::getValue( 'mail_smtphost', '127.0.0.1' );
-		$SMTPAUTH = OC_Config::getValue( 'mail_smtpauth', false ); 
-		$SMTPUSERNAME = OC_Config::getValue( 'mail_smtpname', '' ); 
-		$SMTPPASSWORD = OC_Config::getValue( 'mail_smtppassword', '' );  
+		$SMTPAUTH = OC_Config::getValue( 'mail_smtpauth', false );
+		$SMTPUSERNAME = OC_Config::getValue( 'mail_smtpname', '' );
+		$SMTPPASSWORD = OC_Config::getValue( 'mail_smtppassword', '' );
 
 
 		$mailo = new PHPMailer(true);
 		if($SMTPMODE=='sendmail') {
 			$mailo->IsSendmail();
-		}elseif($SMTPMODE=='smtp'){
+		}elseif($SMTPMODE=='smtp') {
 			$mailo->IsSMTP();
-		}elseif($SMTPMODE=='qmail'){
+		}elseif($SMTPMODE=='qmail') {
 			$mailo->IsQmail();
 		}else{
 			$mailo->IsMail();
@@ -55,6 +55,7 @@ class OC_Mail {
 
 		$mailo->From =$fromaddress;
 		$mailo->FromName = $fromname;;
+		$mailo->Sender =$fromaddress;
 		$a=explode(' ',$toaddress);
 		try {
 			foreach($a as $ad) {
diff --git a/lib/migrate.php b/lib/migrate.php
index e998cf1f4a8..823b3574f16 100644
--- a/lib/migrate.php
+++ b/lib/migrate.php
@@ -52,20 +52,20 @@ class OC_Migrate{
 	 * register a new migration provider
 	 * @param OC_Migrate_Provider $provider
 	 */
-	public static function registerProvider($provider){
+	public static function registerProvider($provider) {
 		self::$providers[]=$provider;
 	}
 
 	/**
 	* @brief finds and loads the providers
 	*/
-	static private function findProviders(){
+	static private function findProviders() {
 		// Find the providers
 		$apps = OC_App::getAllApps();
 
-		foreach($apps as $app){
+		foreach($apps as $app) {
 			$path = OC_App::getAppPath($app) . '/appinfo/migrate.php';
-			if( file_exists( $path ) ){
+			if( file_exists( $path ) ) {
 				include( $path );
 			}
 		}
@@ -78,21 +78,21 @@ class OC_Migrate{
 	 * @param otional $path string path to zip output folder
 	 * @return false on error, path to zip on success
 	 */
-	 public static function export( $uid=null, $type='user', $path=null ){
+	 public static function export( $uid=null, $type='user', $path=null ) {
 		$datadir = OC_Config::getValue( 'datadirectory' );
 	 	// Validate export type
 	 	$types = array( 'user', 'instance', 'system', 'userfiles' );
-	 	if( !in_array( $type, $types ) ){
+	 	if( !in_array( $type, $types ) ) {
 	 		OC_Log::write( 'migration', 'Invalid export type', OC_Log::ERROR );
 	 		return json_encode( array( array( 'success' => false ) ) );
 	 	}
 	 	self::$exporttype = $type;
 	 	// Userid?
-	 	if( self::$exporttype == 'user' ){
+	 	if( self::$exporttype == 'user' ) {
 	 		// Check user exists
-	 		if( !is_null($uid) ){
+	 		if( !is_null($uid) ) {
 				$db = new OC_User_Database;
-		 		if( !$db->userExists( $uid ) ){
+		 		if( !$db->userExists( $uid ) ) {
 					OC_Log::write('migration', 'User: '.$uid.' is not in the database and so cannot be exported.', OC_Log::ERROR);
 					return json_encode( array( 'success' => false ) );
 				}
@@ -102,18 +102,18 @@ class OC_Migrate{
 	 		}
 	 	}
 	 	// Calculate zipname
-	 	if( self::$exporttype == 'user' ){
+	 	if( self::$exporttype == 'user' ) {
 	 		$zipname = 'oc_export_' . self::$uid . '_' . date("y-m-d_H-i-s") . '.zip';
 	 	} else {
 	 		$zipname = 'oc_export_' . self::$exporttype . '_' . date("y-m-d_H-i-s") . '.zip';
 	 	}
 	 	// Calculate path
-	 	if( self::$exporttype == 'user' ){
+	 	if( self::$exporttype == 'user' ) {
 	 		self::$zippath = $datadir . '/' . self::$uid . '/' . $zipname;
 	 	} else {
-	 		if( !is_null( $path ) ){
+	 		if( !is_null( $path ) ) {
 	 			// Validate custom path
-	 			if( !file_exists( $path ) || !is_writeable( $path ) ){
+	 			if( !file_exists( $path ) || !is_writeable( $path ) ) {
 	 				OC_Log::write( 'migration', 'Path supplied is invalid.', OC_Log::ERROR );
 	 				return json_encode( array( 'success' => false ) );
 	 			}
@@ -124,17 +124,17 @@ class OC_Migrate{
 	 		}
 	 	}
 	 	// Create the zip object
-	 	if( !self::createZip() ){
+	 	if( !self::createZip() ) {
 	 		return json_encode( array( 'success' => false ) );
 	 	}
 	 	// Do the export
 	 	self::findProviders();
 	 	$exportdata = array();
-	 	switch( self::$exporttype ){
+	 	switch( self::$exporttype ) {
 	 		case 'user':
 	 			// Connect to the db
 	 			self::$dbpath = $datadir . '/' . self::$uid . '/migration.db';
-	 			if( !self::connectDB() ){
+	 			if( !self::connectDB() ) {
 	 				return json_encode( array( 'success' => false ) );
 	 			}
 	 			self::$content = new OC_Migration_Content( self::$zip, self::$MDB2 );
@@ -158,14 +158,14 @@ class OC_Migrate{
 				// Add the export to the zip
 				self::$content->addFromString( $dbexport, "dbexport.xml" );
 				// Add user data
-				foreach(OC_User::getUsers() as $user){
+				foreach(OC_User::getUsers() as $user) {
 					self::$content->addDir(OC_User::getHome($user), true, "/userdata/" );
 				}
 			break;
 			case 'userfiles':
 				self::$content = new OC_Migration_Content( self::$zip );
 				// Creates a zip with all of the users files
-				foreach(OC_User::getUsers() as $user){
+				foreach(OC_User::getUsers() as $user) {
 					self::$content->addDir(OC_User::getHome($user), true, "/" );
 				}
 			break;
@@ -178,12 +178,12 @@ class OC_Migrate{
 				}
 			break;
 	 	}
-	 	if( !$info = self::getExportInfo( $exportdata ) ){
+	 	if( !$info = self::getExportInfo( $exportdata ) ) {
 	 		return json_encode( array( 'success' => false ) );
 	 	}
 	 	// Add the export info json to the export zip
 	 	self::$content->addFromString( $info, 'export_info.json' );
-	 	if( !self::$content->finish() ){
+	 	if( !self::$content->finish() ) {
 	 		return json_encode( array( 'success' => false ) );
 	 	}
 	 	return json_encode( array( 'success' => true, 'data' => self::$zippath ) );
@@ -195,22 +195,22 @@ class OC_Migrate{
 	* @param optional $type type of import (user or instance)
 	* @param optional $uid userid of new user
 	*/
-	public static function import( $path, $type='user', $uid=null ){
-		
+	public static function import( $path, $type='user', $uid=null ) {
+
 		$datadir = OC_Config::getValue( 'datadirectory' );
 		// Extract the zip
-		if( !$extractpath = self::extractZip( $path ) ){
+		if( !$extractpath = self::extractZip( $path ) ) {
 			return json_encode( array( 'success' => false ) );
 		}
 		// Get export_info.json
 		$scan = scandir( $extractpath );
 		// Check for export_info.json
-		if( !in_array( 'export_info.json', $scan ) ){
+		if( !in_array( 'export_info.json', $scan ) ) {
 			OC_Log::write( 'migration', 'Invalid import file, export_info.json note found', OC_Log::ERROR );
 			return json_encode( array( 'success' => false ) );
 		}
 		$json = json_decode( file_get_contents( $extractpath . 'export_info.json' ) );
-		if( $json->exporttype != $type ){
+		if( $json->exporttype != $type ) {
 			OC_Log::write( 'migration', 'Invalid import file', OC_Log::ERROR );
 			return json_encode( array( 'success' => false ) );
 		}
@@ -219,37 +219,37 @@ class OC_Migrate{
 		$currentuser = OC_User::getUser();
 
 		// Have we got a user if type is user
-		if( self::$exporttype == 'user' ){
+		if( self::$exporttype == 'user' ) {
 			self::$uid = !is_null($uid) ? $uid : $currentuser;
 		}
-		
+
 		// We need to be an admin if we are not importing our own data
-		if(($type == 'user' && self::$uid != $currentuser) || $type != 'user' ){
-			if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )){
+		if(($type == 'user' && self::$uid != $currentuser) || $type != 'user' ) {
+			if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )) {
 				// Naughty.
 				OC_Log::write( 'migration', 'Import not permitted.', OC_Log::ERROR );
-				return json_encode( array( 'success' => false ) ); 	
+				return json_encode( array( 'success' => false ) );
 			}
 		}
 
 		// Handle export types
-		switch( self::$exporttype ){
+		switch( self::$exporttype ) {
 			case 'user':
 				// Check user availability
-				if( !OC_User::userExists( self::$uid ) ){
+				if( !OC_User::userExists( self::$uid ) ) {
 					OC_Log::write( 'migration', 'User doesn\'t exist', OC_Log::ERROR );
 					return json_encode( array( 'success' => false ) );
 				}
 				// Copy data
-				if( !self::copy_r( $extractpath . $json->exporteduser, $datadir . '/' . self::$uid ) ){
+				if( !self::copy_r( $extractpath . $json->exporteduser, $datadir . '/' . self::$uid ) ) {
 					return json_encode( array( 'success' => false ) );
 				}
 				// Import user app data
-				if( !$appsimported = self::importAppData( $extractpath . $json->exporteduser . '/migration.db', $json, self::$uid ) ){
+				if( !$appsimported = self::importAppData( $extractpath . $json->exporteduser . '/migration.db', $json, self::$uid ) ) {
 					return json_encode( array( 'success' => false ) );
 				}
 				// All done!
-				if( !self::unlink_r( $extractpath ) ){
+				if( !self::unlink_r( $extractpath ) ) {
 					OC_Log::write( 'migration', 'Failed to delete the extracted zip', OC_Log::ERROR );
 				}
 				return json_encode( array( 'success' => true, 'data' => $appsimported ) );
@@ -262,19 +262,19 @@ class OC_Migrate{
 
 					// Delete current data folder.
 					OC_Log::write( 'migration', "Deleting current data dir", OC_Log::INFO );
-					if( !self::unlink_r( $datadir, false ) ){
+					if( !self::unlink_r( $datadir, false ) ) {
 						OC_Log::write( 'migration', 'Failed to delete the current data dir', OC_Log::ERROR );
 						return json_encode( array( 'success' => false ) );
 					}
 
 					// Copy over data
-					if( !self::copy_r( $extractpath . 'userdata', $datadir ) ){
+					if( !self::copy_r( $extractpath . 'userdata', $datadir ) ) {
 						OC_Log::write( 'migration', 'Failed to copy over data directory', OC_Log::ERROR );
 						return json_encode( array( 'success' => false ) );
 					}
 
 					// Import the db
-					if( !OC_DB::replaceDB( $extractpath . 'dbexport.xml' ) ){
+					if( !OC_DB::replaceDB( $extractpath . 'dbexport.xml' ) ) {
 						return json_encode( array( 'success' => false ) );
 					}
 					// Done
@@ -291,15 +291,15 @@ class OC_Migrate{
 	* $param optional $deleteRootToo bool delete the root directory
 	* @return bool
 	*/
-	private static function unlink_r( $dir, $deleteRootToo=true ){
-		if( !$dh = @opendir( $dir ) ){
+	private static function unlink_r( $dir, $deleteRootToo=true ) {
+		if( !$dh = @opendir( $dir ) ) {
 			return false;
 		}
-		while (false !== ($obj = readdir($dh))){
+		while (false !== ($obj = readdir($dh))) {
 			if($obj == '.' || $obj == '..') {
 				continue;
 			}
-			if (!@unlink($dir . '/' . $obj)){
+			if (!@unlink($dir . '/' . $obj)) {
 				self::unlink_r($dir.'/'.$obj, true);
 			}
 		}
@@ -316,16 +316,16 @@ class OC_Migrate{
 	* @param $dest string path to destination
 	* @return bool
 	*/
-	private static function copy_r( $path, $dest ){
-		if( is_dir($path) ){
+	private static function copy_r( $path, $dest ) {
+		if( is_dir($path) ) {
 			@mkdir( $dest );
 			$objects = scandir( $path );
-			if( sizeof( $objects ) > 0 ){
-				foreach( $objects as $file ){
+			if( sizeof( $objects ) > 0 ) {
+				foreach( $objects as $file ) {
 					if( $file == "." || $file == ".." || $file == ".htaccess")
 					continue;
 					// go on
-					if( is_dir( $path . '/' . $file ) ){
+					if( is_dir( $path . '/' . $file ) ) {
 						self::copy_r( $path  .'/' . $file, $dest . '/' . $file );
 					} else {
 						copy( $path . '/' . $file, $dest . '/' . $file );
@@ -334,7 +334,7 @@ class OC_Migrate{
 			}
 			return true;
 		}
-		elseif( is_file( $path ) ){
+		elseif( is_file( $path ) ) {
 			return copy( $path, $dest );
 		} else {
 			return false;
@@ -346,10 +346,10 @@ class OC_Migrate{
 	* @param $path string path to the zip
 	* @return string path to extract location (with a trailing slash) or false on failure
 	*/
-	static private function extractZip( $path ){
+	static private function extractZip( $path ) {
 		self::$zip = new ZipArchive;
 		// Validate path
-	 	if( !file_exists( $path ) ){
+	 	if( !file_exists( $path ) ) {
 	 		OC_Log::write( 'migration', 'Zip not found', OC_Log::ERROR );
 	 		return false;
 	 	}
@@ -358,7 +358,7 @@ class OC_Migrate{
 			return false;
 		}
 		$to = get_temp_dir() . '/oc_import_' . self::$exporttype . '_' . date("y-m-d_H-i-s") . '/';
-		if( !self::$zip->extractTo( $to ) ){
+		if( !self::$zip->extractTo( $to ) ) {
 			return false;
 		}
 		self::$zip->close();
@@ -369,14 +369,14 @@ class OC_Migrate{
 	 * @brief connects to a MDB2 database scheme
 	 * @returns bool
 	 */
-	static private function connectScheme(){
+	static private function connectScheme() {
 		// We need a mdb2 database connection
 		self::$MDB2->loadModule( 'Manager' );
 		self::$MDB2->loadModule( 'Reverse' );
 
 		// Connect if this did not happen before
-		if( !self::$schema ){
-			require_once('MDB2/Schema.php');
+		if( !self::$schema ) {
+			require_once 'MDB2/Schema.php';
 			self::$schema=MDB2_Schema::factory( self::$MDB2 );
 		}
 
@@ -387,23 +387,23 @@ class OC_Migrate{
 	 * @brief creates a migration.db in the users data dir with their app data in
 	 * @return bool whether operation was successfull
 	 */
-	private static function exportAppData( ){
+	private static function exportAppData( ) {
 
 		$success = true;
 		$return = array();
 
 		// Foreach provider
-		foreach( self::$providers as $provider ){
+		foreach( self::$providers as $provider ) {
 			// Check if the app is enabled
-			if( OC_App::isEnabled( $provider->getID() ) ){
+			if( OC_App::isEnabled( $provider->getID() ) ) {
 				$success = true;
 				// Does this app use the database?
-				if( file_exists( OC_App::getAppPath($provider->getID()).'/appinfo/database.xml' ) ){
+				if( file_exists( OC_App::getAppPath($provider->getID()).'/appinfo/database.xml' ) ) {
 					// Create some app tables
 					$tables = self::createAppTables( $provider->getID() );
-					if( is_array( $tables ) ){
+					if( is_array( $tables ) ) {
 						// Save the table names
-						foreach($tables as $table){
+						foreach($tables as $table) {
 							$return['apps'][$provider->getID()]['tables'][] = $table;
 						}
 					} else {
@@ -411,9 +411,9 @@ class OC_Migrate{
 						$success = false;
 					}
 				}
-	
+
 				// Run the export function?
-				if( $success ){
+				if( $success ) {
 					// Set the provider properties
 					$provider->setData( self::$uid, self::$content );
 					$return['apps'][$provider->getID()]['success'] = $provider->export();
@@ -421,7 +421,7 @@ class OC_Migrate{
 					$return['apps'][$provider->getID()]['success'] = false;
 					$return['apps'][$provider->getID()]['message'] = 'failed to create the app tables';
 				}
-	
+
 				// Now add some app info the the return array
 				$appinfo = OC_App::getAppInfo( $provider->getID() );
 				$return['apps'][$provider->getID()]['version'] = OC_App::getAppVersion($provider->getID());
@@ -438,7 +438,7 @@ class OC_Migrate{
 	 * @param optional $array array of data to include in the returned json
 	 * @return bool
 	 */
-	static private function getExportInfo( $array=array() ){
+	static private function getExportInfo( $array=array() ) {
 		$info = array(
 						'ocversion' => OC_Util::getVersion(),
 						'exporttime' => time(),
@@ -447,7 +447,7 @@ class OC_Migrate{
 						'exporteduser' => self::$uid
 					);
 
-		if( !is_array( $array ) ){
+		if( !is_array( $array ) ) {
 			OC_Log::write( 'migration', 'Supplied $array was not an array in getExportInfo()', OC_Log::ERROR );
 		}
 		// Merge in other data
@@ -462,23 +462,23 @@ class OC_Migrate{
 	 * @param $db optional path to migration.db, defaults to user data dir
 	 * @return bool whether the operation was successful
 	 */
-	static private function connectDB( $path=null ){
+	static private function connectDB( $path=null ) {
 		// Has the dbpath been set?
 		self::$dbpath = !is_null( $path ) ? $path : self::$dbpath;
-		if( !self::$dbpath ){
+		if( !self::$dbpath ) {
 			OC_Log::write( 'migration', 'connectDB() was called without dbpath being set', OC_Log::ERROR );
 			return false;
 		}
 		// Already connected
-		if(!self::$MDB2){
-			require_once('MDB2.php');
+		if(!self::$MDB2) {
+			require_once 'MDB2.php';
 
 			$datadir = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
 
 			// DB type
-			if( class_exists( 'SQLite3' ) ){
+			if( class_exists( 'SQLite3' ) ) {
 				$dbtype = 'sqlite3';
-			} else if( is_callable( 'sqlite_open' ) ){
+			} else if( is_callable( 'sqlite_open' ) ) {
 				$dbtype = 'sqlite';
 			} else {
 				OC_Log::write( 'migration', 'SQLite not found', OC_Log::ERROR );
@@ -502,7 +502,7 @@ class OC_Migrate{
 			// Try to establish connection
 			self::$MDB2 = MDB2::factory( $dsn, $options );
 			// Die if we could not connect
-			if( PEAR::isError( self::$MDB2 ) ){
+			if( PEAR::isError( self::$MDB2 ) ) {
 				die( self::$MDB2->getMessage() );
 				OC_Log::write( 'migration', 'Failed to create/connect to migration.db', OC_Log::FATAL );
 				OC_Log::write( 'migration', self::$MDB2->getUserInfo(), OC_Log::FATAL );
@@ -521,9 +521,9 @@ class OC_Migrate{
 	 * @param $appid string id of the app
 	 * @return bool whether the operation was successful
 	 */
-	static private function createAppTables( $appid ){
+	static private function createAppTables( $appid ) {
 
-		if( !self::connectScheme() ){
+		if( !self::connectScheme() ) {
 			return false;
 		}
 
@@ -538,7 +538,7 @@ class OC_Migrate{
 		$content = str_replace( '*dbprefix*', '', $content );
 
 		$xml = new SimpleXMLElement($content);
-		foreach($xml->table as $table){
+		foreach($xml->table as $table) {
 			$tables[] = (string)$table->name;
 		}
 
@@ -550,7 +550,7 @@ class OC_Migrate{
 		unlink( $file2 );
 
 		// Die in case something went wrong
-		if( $definition instanceof MDB2_Schema_Error ){
+		if( $definition instanceof MDB2_Schema_Error ) {
 			OC_Log::write( 'migration', 'Failed to parse database.xml for: '.$appid, OC_Log::FATAL );
 			OC_Log::write( 'migration', $definition->getMessage().': '.$definition->getUserInfo(), OC_Log::FATAL );
 			return false;
@@ -561,7 +561,7 @@ class OC_Migrate{
 		$ret = self::$schema->createDatabase( $definition );
 
 		// Die in case something went wrong
-		if( $ret instanceof MDB2_Error ){
+		if( $ret instanceof MDB2_Error ) {
 			OC_Log::write( 'migration', 'Failed to create tables for: '.$appid, OC_Log::FATAL );
 			OC_Log::write( 'migration', $ret->getMessage().': '.$ret->getUserInfo(), OC_Log::FATAL );
 			return false;
@@ -575,10 +575,10 @@ class OC_Migrate{
 	* @param $path string path to zip destination
 	* @return bool
 	*/
-	static private function createZip(){
+	static private function createZip() {
 		self::$zip = new ZipArchive;
 		// Check if properties are set
-		if( !self::$zippath ){
+		if( !self::$zippath ) {
 			OC_Log::write('migration', 'createZip() called but $zip and/or $zippath have not been set', OC_Log::ERROR);
 			return false;
 		}
@@ -594,11 +594,11 @@ class OC_Migrate{
 	* @brief returns an array of apps that support migration
 	* @return array
 	*/
-	static public function getApps(){
+	static public function getApps() {
 		$allapps = OC_App::getAllApps();
-		foreach($allapps as $app){
+		foreach($allapps as $app) {
 			$path = self::getAppPath($app) . '/lib/migrate.php';
-			if( file_exists( $path ) ){
+			if( file_exists( $path ) ) {
 				$supportsmigration[] = $app;
 			}
 		}
@@ -612,11 +612,11 @@ class OC_Migrate{
 	* @param $uid optional uid to use
 	* @return array of apps with import statuses, or false on failure.
 	*/
-	public static function importAppData( $db, $info, $uid=null ){
+	public static function importAppData( $db, $info, $uid=null ) {
 		// Check if the db exists
-		if( file_exists( $db ) ){
+		if( file_exists( $db ) ) {
 			// Connect to the db
-			if(!self::connectDB( $db )){
+			if(!self::connectDB( $db )) {
 				OC_Log::write('migration','Failed to connect to migration.db',OC_Log::ERROR);
 				return false;
 			}
@@ -634,25 +634,25 @@ class OC_Migrate{
 							'newuid' => self::$uid
 							);
 
-		foreach( self::$providers as $provider){
+		foreach( self::$providers as $provider) {
 			// Is the app in the export?
 			$id = $provider->getID();
-			if( isset( $info->apps->$id ) ){
+			if( isset( $info->apps->$id ) ) {
 				// Is the app installed
-				if( !OC_App::isEnabled( $id ) ){
+				if( !OC_App::isEnabled( $id ) ) {
 					OC_Log::write( 'migration', 'App: ' . $id . ' is not installed, can\'t import data.', OC_Log::INFO );
 					$appsstatus[$id] = 'notsupported';
 				} else {
 					// Did it succeed on export?
-					if( $info->apps->$id->success ){
+					if( $info->apps->$id->success ) {
 						// Give the provider the content object
-						if( !self::connectDB( $db ) ){
+						if( !self::connectDB( $db ) ) {
 							return false;
 						}
 						$content = new OC_Migration_Content( self::$zip, self::$MDB2 );
 						$provider->setData( self::$uid, $content, $info );
 						// Then do the import
-						if( !$appsstatus[$id] = $provider->import( $info->apps->$id, $importinfo ) ){
+						if( !$appsstatus[$id] = $provider->import( $info->apps->$id, $importinfo ) ) {
 							// Failed to import app
 							OC_Log::write( 'migration', 'Failed to import app data for user: ' . self::$uid . ' for app: ' . $id, OC_Log::ERROR );
 						}
@@ -674,17 +674,17 @@ class OC_Migrate{
 	* @param $hash string hash of the user to be created
 	* @return bool result of user creation
 	*/
-	public static function createUser( $uid, $hash ){
+	public static function createUser( $uid, $hash ) {
 
 		// Check if userid exists
-		if(OC_User::userExists( $uid )){
+		if(OC_User::userExists( $uid )) {
 			return false;
 		}
 
 		// Create the user
 		$query = OC_DB::prepare( "INSERT INTO `*PREFIX*users` ( `uid`, `password` ) VALUES( ?, ? )" );
 		$result = $query->execute( array( $uid, $hash));
-		if( !$result ){
+		if( !$result ) {
 			OC_Log::write('migration', 'Failed to create the new user "'.$uid."");
 		}
 		return $result ? true : false;
diff --git a/lib/migration/content.php b/lib/migration/content.php
index 5c89e6bacd6..64b8168cd98 100644
--- a/lib/migration/content.php
+++ b/lib/migration/content.php
@@ -25,42 +25,42 @@
  * provides methods to add and access data from the migration
  */
 class OC_Migration_Content{
-	
+
 	private $zip=false;
 	// Holds the MDB2 object
 	private $db=null;
 	// Holds an array of tmpfiles to delete after zip creation
 	private $tmpfiles=false;
-	
+
 	/**
 	* @brief sets up the
 	* @param $zip ZipArchive object
 	* @param optional $db a MDB2 database object (required for exporttype user)
 	* @return bool
 	*/
-	public function __construct( $zip, $db=null ){
+	public function __construct( $zip, $db=null ) {
 
 		$this->zip = $zip;
 		$this->db = $db;
-		
-		if( !is_null( $db ) ){
+
+		if( !is_null( $db ) ) {
 			// Get db path
 			$db = $this->db->getDatabase();
 			$this->tmpfiles[] = $db;
 		}
-		
+
 	}
-	
+
 	// @brief prepares the db
 	// @param $query the sql query to prepare
-	public function prepare( $query ){
-		
+	public function prepare( $query ) {
+
 		// Optimize the query
 		$query = $this->processQuery( $query );
-		
+
 		// Optimize the query
 		$query = $this->db->prepare( $query );
-		
+
 		// Die if we have an error (error means: bad query, not 0 results!)
 		if( PEAR::isError( $query ) ) {
 			$entry = 'DB Error: "'.$result->getMessage().'"<br />';
@@ -68,17 +68,17 @@ class OC_Migration_Content{
 			OC_Log::write( 'migration', $entry, OC_Log::FATAL );
 			return false;
 		} else {
-			return $query;	
+			return $query;
 		}
-		
+
 	}
-	
+
 	/**
 	* @brief processes the db query
 	* @param $query the query to process
 	* @return string of processed query
 	*/
-	private function processQuery( $query ){
+	private function processQuery( $query ) {
 		$query = str_replace( '`', '\'', $query );
 		$query = str_replace( 'NOW()', 'datetime(\'now\')', $query );
 		$query = str_replace( 'now()', 'datetime(\'now\')', $query );
@@ -86,28 +86,28 @@ class OC_Migration_Content{
 		$query = str_replace( '*PREFIX*', '', $query );
 		return $query;
 	}
-	
+
 	/**
 	* @brief copys rows to migration.db from the main database
 	* @param $options array of options.
 	* @return bool
 	*/
-	public function copyRows( $options ){
-		if( !array_key_exists( 'table', $options ) ){
-			return false;	
+	public function copyRows( $options ) {
+		if( !array_key_exists( 'table', $options ) ) {
+			return false;
 		}
-		
+
 		$return = array();
-					
+
 		// Need to include 'where' in the query?
-		if( array_key_exists( 'matchval', $options ) && array_key_exists( 'matchcol', $options ) ){
-			
+		if( array_key_exists( 'matchval', $options ) && array_key_exists( 'matchcol', $options ) ) {
+
 			// If only one matchval, create an array
-			if(!is_array($options['matchval'])){
-				$options['matchval'] = array( $options['matchval'] );	
+			if(!is_array($options['matchval'])) {
+				$options['matchval'] = array( $options['matchval'] );
 			}
-			
-			foreach( $options['matchval'] as $matchval ){
+
+			foreach( $options['matchval'] as $matchval ) {
 				// Run the query for this match value (where x = y value)
 				$sql = 'SELECT * FROM `*PREFIX*' . $options['table'] . '` WHERE `' . $options['matchcol'] . '` LIKE ?';
 				$query = OC_DB::prepare( $sql );
@@ -122,29 +122,29 @@ class OC_Migration_Content{
 			$query = OC_DB::prepare( $sql );
 			$results = $query->execute();
 			$return = $this->insertData( $results, $options );
-	
+
 		}
-		
+
 		return $return;
-		
+
 	}
-	
+
 	/**
 	* @brief saves a sql data set into migration.db
 	* @param $data a sql data set returned from self::prepare()->query()
 	* @param $options array of copyRows options
 	* @return void
 	*/
-	private function insertData( $data, $options ){
+	private function insertData( $data, $options ) {
 		$return = array();
 		// Foreach row of data to insert
-		while( $row = $data->fetchRow() ){
+		while( $row = $data->fetchRow() ) {
 			// Now save all this to the migration.db
-			foreach($row as $field=>$value){
+			foreach($row as $field=>$value) {
 				$fields[] = $field;
 				$values[] = $value;
 			}
-			
+
 			// Generate some sql
 			$sql = "INSERT INTO `" . $options['table'] . '` ( `';
 			$fieldssql = implode( '`, `', $fields );
@@ -153,19 +153,19 @@ class OC_Migration_Content{
 			$sql .= $valuessql . " )";
 			// Make the query
 			$query = $this->prepare( $sql );
-			if( !$query ){
-				OC_Log::write( 'migration', 'Invalid sql produced: '.$sql, OC_Log::FATAL );	
+			if( !$query ) {
+				OC_Log::write( 'migration', 'Invalid sql produced: '.$sql, OC_Log::FATAL );
 				return false;
 				exit();
 			} else {
 				$query->execute( $values );
 				// Do we need to return some values?
-				if( array_key_exists( 'idcol', $options ) ){
+				if( array_key_exists( 'idcol', $options ) ) {
 					// Yes we do
-					$return[] = $row[$options['idcol']];	
+					$return[] = $row[$options['idcol']];
 				} else {
 					// Take a guess and return the first field :)
-					$return[] = reset($row);	
+					$return[] = reset($row);
 				}
 			}
 			$fields = '';
@@ -173,11 +173,11 @@ class OC_Migration_Content{
 		}
 		return $return;
 	}
-	
+
 	/**
 	* @brief adds a directory to the zip object
 	* @param $dir string path of the directory to add
-	* @param $recursive bool 
+	* @param $recursive bool
 	* @param $internaldir string path of folder to add dir to in zip
 	* @return bool
 	*/
@@ -185,14 +185,14 @@ class OC_Migration_Content{
 	    $dirname = basename($dir);
 	    $this->zip->addEmptyDir($internaldir . $dirname);
 	    $internaldir.=$dirname.='/';
-		if( !file_exists( $dir ) ){
-			return false;	
+		if( !file_exists( $dir ) ) {
+			return false;
 		}
 	    if ($dirhandle = opendir($dir)) {
 			while (false !== ( $file = readdir($dirhandle))) {
-	
+
 				if (( $file != '.' ) && ( $file != '..' )) {
-		
+
 					if (is_dir($dir . '/' . $file) && $recursive) {
 						$this->addDir($dir . '/' . $file, $recursive, $internaldir);
 					} elseif (is_file($dir . '/' . $file)) {
@@ -207,46 +207,46 @@ class OC_Migration_Content{
 	    }
 	    return true;
 	}
-	
+
 	/**
 	* @brief adds a file to the zip from a given string
 	* @param $data string of data to add
 	* @param $path the relative path inside of the zip to save the file to
 	* @return bool
 	*/
-	public function addFromString( $data, $path ){
+	public function addFromString( $data, $path ) {
 		// Create a temp file
 		$file = tempnam( get_temp_dir(). '/', 'oc_export_tmp_' );
 		$this->tmpfiles[] = $file;
-		if( !file_put_contents( $file, $data ) ){
+		if( !file_put_contents( $file, $data ) ) {
 			OC_Log::write( 'migation', 'Failed to save data to a temporary file', OC_Log::ERROR );
-			return false;	
+			return false;
 		}
 		// Add file to the zip
 		$this->zip->addFile( $file, $path );
 		return true;
 	}
-	
+
 	/**
 	* @brief closes the zip, removes temp files
 	* @return bool
 	*/
-	public function finish(){
-		if( !$this->zip->close() ){
+	public function finish() {
+		if( !$this->zip->close() ) {
 			OC_Log::write( 'migration', 'Failed to write the zip file with error: '.$this->zip->getStatusString(), OC_Log::ERROR );
-			return false;	
+			return false;
 		}
 		$this->cleanup();
-		return true;	
-	}	
-	
+		return true;
+	}
+
 		/**
 	* @brief cleans up after the zip
 	*/
-	private function cleanup(){
+	private function cleanup() {
 		// Delete tmp files
-		foreach($this->tmpfiles as $i){
-			unlink( $i );	
-		}	
+		foreach($this->tmpfiles as $i) {
+			unlink( $i );
+		}
 	}
 }
diff --git a/lib/migration/provider.php b/lib/migration/provider.php
index 91336f3019d..234ab3351f3 100644
--- a/lib/migration/provider.php
+++ b/lib/migration/provider.php
@@ -3,50 +3,50 @@
  * provides search functionalty
  */
 abstract class OC_Migration_Provider{
-	
+
 	protected $id=false;
-	protected $content=false; 
+	protected $content=false;
 	protected $uid=false;
 	protected $olduid=false;
 	protected $appinfo=false;
-	
-	public function __construct( $appid ){
+
+	public function __construct( $appid ) {
 		// Set the id
 		$this->id = $appid;
 		OC_Migrate::registerProvider( $this );
 	}
-	
+
 	/**
 	 * @brief exports data for apps
 	 * @return array appdata to be exported
 	 */
 	abstract function export( );
-	
+
 	/**
 	 * @brief imports data for the app
 	 * @return void
 	 */
 	abstract function import( );
-	
+
 	/**
 	* @brief sets the OC_Migration_Content object to $this->content
 	* @param $content a OC_Migration_Content object
 	*/
-	public function setData( $uid, $content, $info=null ){
-		$this->content = $content;	
+	public function setData( $uid, $content, $info=null ) {
+		$this->content = $content;
 		$this->uid = $uid;
 		$id = $this->id;
-		if( !is_null( $info ) ){
+		if( !is_null( $info ) ) {
 			$this->olduid = $info->exporteduser;
 			$this->appinfo = $info->apps->$id;
 		}
 	}
-	 	
+
 	/**
 	* @brief returns the appid of the provider
 	* @return string
 	*/
-	public function getID(){
-		return $this->id;	
+	public function getID() {
+		return $this->id;
 	}
 }
diff --git a/lib/minimizer.php b/lib/minimizer.php
index 3dc89e331a6..d50ab0d2397 100644
--- a/lib/minimizer.php
+++ b/lib/minimizer.php
@@ -1,16 +1,15 @@
 <?php
 
 abstract class OC_Minimizer {
-	public function getLastModified($files) {
-		$last_modified = 0;
+	public function generateETag($files) {
+		$etag = '';
+		sort($files);
 		foreach($files as $file_info) {
 			$file = $file_info[0] . '/' . $file_info[2];
-			$filemtime = filemtime($file);
-			if ($filemtime > $last_modified) {
-				$last_modified = $filemtime;
-			}
+			$stat = stat($file);
+			$etag .= $file.$stat['mtime'].$stat['size'];
 		}
-		return $last_modified;
+		return md5($etag);
 	}
 
 	abstract public function minimizeFiles($files);
@@ -18,23 +17,21 @@ abstract class OC_Minimizer {
 	public function output($files, $cache_key) {
 		header('Content-Type: '.$this->contentType);
 		OC_Response::enableCaching();
-		$last_modified = $this->getLastModified($files);
-		OC_Response::setLastModifiedHeader($last_modified);
+		$etag = $this->generateETag($files);
+		$cache_key .= '-'.$etag;
 
 		$gzout = false;
 		$cache = OC_Cache::getGlobalCache();
-		if (!OC_Request::isNoCache() && (!defined('DEBUG') || !DEBUG)){
+		if (!OC_Request::isNoCache() && (!defined('DEBUG') || !DEBUG)) {
+			OC_Response::setETagHeader($etag);
 			$gzout = $cache->get($cache_key.'.gz');
-			if ($gzout) {
-				OC_Response::setETagHeader(md5($gzout));
-			}
 		}
 
 		if (!$gzout) {
 			$out = $this->minimizeFiles($files);
 			$gzout = gzencode($out);
-			OC_Response::setETagHeader(md5($gzout));
 			$cache->set($cache_key.'.gz', $gzout);
+			OC_Response::setETagHeader($etag);
 		}
 		if ($encoding = OC_Request::acceptGZip()) {
 			header('Content-Encoding: '.$encoding);
@@ -45,6 +42,12 @@ abstract class OC_Minimizer {
 		header('Content-Length: '.strlen($out));
 		echo $out;
 	}
+
+	public function clearCache() {
+		$cache = OC_Cache::getGlobalCache();
+		$cache->clear('core.css');
+		$cache->clear('core.js');
+	}
 }
 
 if (!function_exists('gzdecode')) {
diff --git a/lib/minimizer/css.php b/lib/minimizer/css.php
index 110935ea3b7..8d130572e2b 100644
--- a/lib/minimizer/css.php
+++ b/lib/minimizer/css.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once('mediawiki/CSSMin.php');
+require_once 'mediawiki/CSSMin.php';
 
 class OC_Minimizer_CSS extends OC_Minimizer
 {
@@ -16,7 +16,7 @@ class OC_Minimizer_CSS extends OC_Minimizer
 
 			$in_root = false;
 			foreach(OC::$APPSROOTS as $app_root) {
-				if(strpos($file, $app_root['path']) === 0) {
+				if(strpos($file, $app_root['path'].'/') === 0) {
 					$in_root = rtrim($webroot.$app_root['url'], '/');
 					break;
 				}
@@ -30,7 +30,7 @@ class OC_Minimizer_CSS extends OC_Minimizer
 			$remote .= dirname($file_info[2]);
 			$css_out .= CSSMin::remap($css, dirname($file), $remote, true);
 		}
-		if (!defined('DEBUG') || !DEBUG){
+		if (!defined('DEBUG') || !DEBUG) {
 			$css_out = CSSMin::minify($css_out);
 		}
 		return $css_out;
diff --git a/lib/minimizer/js.php b/lib/minimizer/js.php
index 0f5cb7e5577..bd2d836deb0 100644
--- a/lib/minimizer/js.php
+++ b/lib/minimizer/js.php
@@ -1,6 +1,6 @@
 <?php
 
-require_once('mediawiki/JavaScriptMinifier.php');
+require_once 'mediawiki/JavaScriptMinifier.php';
 
 class OC_Minimizer_JS extends OC_Minimizer
 {
@@ -13,7 +13,7 @@ class OC_Minimizer_JS extends OC_Minimizer
 			$js_out .= '/* ' . $file . ' */' . "\n";
 			$js_out .= file_get_contents($file);
 		}
-		if (!defined('DEBUG') || !DEBUG){
+		if (!defined('DEBUG') || !DEBUG) {
 			$js_out = JavaScriptMinifier::minify($js_out);
 		}
 		return $js_out;
diff --git a/lib/ocs.php b/lib/ocs.php
index 3157aae99e6..7350c3c8821 100644
--- a/lib/ocs.php
+++ b/lib/ocs.php
@@ -84,7 +84,7 @@ class OC_OCS {
 			$method='get';
 		}elseif($_SERVER['REQUEST_METHOD'] == 'PUT') {
 			$method='put';
-			parse_str(file_get_contents("php://input"),$put_vars);
+			parse_str(file_get_contents("php://input"), $put_vars);
 		}elseif($_SERVER['REQUEST_METHOD'] == 'POST') {
 			$method='post';
 		}else{
@@ -94,89 +94,89 @@ class OC_OCS {
 
 		// preprocess url
 		$url = strtolower($_SERVER['REQUEST_URI']);
-		if(substr($url,(strlen($url)-1))<>'/') $url.='/';
-		$ex=explode('/',$url);
+		if(substr($url, (strlen($url)-1))<>'/') $url.='/';
+		$ex=explode('/', $url);
 		$paracount=count($ex);
 		$format = self::readData($method, 'format', 'text', '');
 
 		// eventhandler
 		// CONFIG
 		// apiconfig - GET - CONFIG
-		if(($method=='get') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'config')){
+		if(($method=='get') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'config')) {
 			OC_OCS::apiconfig($format);
 
 		// PERSON
 		// personcheck - POST - PERSON/CHECK
-		}elseif(($method=='post') and ($ex[$paracount-4] == 'v1.php') and ($ex[$paracount-3]=='person') and ($ex[$paracount-2] == 'check')){
+		} elseif(($method=='post') and ($ex[$paracount-4] == 'v1.php') and ($ex[$paracount-3]=='person') and ($ex[$paracount-2] == 'check')) {
 			$login = self::readData($method, 'login', 'text');
 			$passwd = self::readData($method, 'password', 'text');
-			OC_OCS::personcheck($format,$login,$passwd);
+			OC_OCS::personcheck($format, $login, $passwd);
 
 		// ACTIVITY
 		// activityget - GET ACTIVITY   page,pagesize als urlparameter
-		}elseif(($method=='get') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'activity')){
+		}elseif(($method=='get') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'activity')) {
 			$page = self::readData($method, 'page', 'int', 0);
-			$pagesize = self::readData($method, 'pagesize','int', 10);
+			$pagesize = self::readData($method, 'pagesize', 'int', 10);
 			if($pagesize<1 or $pagesize>100) $pagesize=10;
-			OC_OCS::activityget($format,$page,$pagesize);
+			OC_OCS::activityget($format, $page, $pagesize);
 
 		// activityput - POST ACTIVITY
-		}elseif(($method=='post') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'activity')){
+		}elseif(($method=='post') and ($ex[$paracount-3] == 'v1.php') and ($ex[$paracount-2] == 'activity')) {
 			$message = self::readData($method, 'message', 'text');
-			OC_OCS::activityput($format,$message);
+			OC_OCS::activityput($format, $message);
 
 
 		// PRIVATEDATA
 		// get - GET DATA
-		}elseif(($method=='get') and ($ex[$paracount-4] == 'v1.php') and ($ex[$paracount-2] == 'getattribute')){
+		}elseif(($method=='get') and ($ex[$paracount-4] == 'v1.php') and ($ex[$paracount-2] == 'getattribute')) {
 			OC_OCS::privateDataGet($format);
 
-		}elseif(($method=='get') and ($ex[$paracount-5] == 'v1.php') and ($ex[$paracount-3] == 'getattribute')){
+		}elseif(($method=='get') and ($ex[$paracount-5] == 'v1.php') and ($ex[$paracount-3] == 'getattribute')) {
 			$app=$ex[$paracount-2];
 			OC_OCS::privateDataGet($format, $app);
-		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-4] == 'getattribute')){
+		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-4] == 'getattribute')) {
 
 			$key=$ex[$paracount-2];
 			$app=$ex[$paracount-3];
-			OC_OCS::privateDataGet($format, $app,$key);
+			OC_OCS::privateDataGet($format, $app, $key);
 
 		// set - POST DATA
-		}elseif(($method=='post') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-4] == 'setattribute')){
+		}elseif(($method=='post') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-4] == 'setattribute')) {
 			$key=$ex[$paracount-2];
 			$app=$ex[$paracount-3];
 			$value = self::readData($method, 'value', 'text');
 			OC_OCS::privatedataset($format, $app, $key, $value);
 		// delete - POST DATA
-		}elseif(($method=='post') and ($ex[$paracount-6] =='v1.php') and ($ex[$paracount-4] == 'deleteattribute')){
+		}elseif(($method=='post') and ($ex[$paracount-6] =='v1.php') and ($ex[$paracount-4] == 'deleteattribute')) {
 			$key=$ex[$paracount-2];
 			$app=$ex[$paracount-3];
 			OC_OCS::privatedatadelete($format, $app, $key);
 
 		// CLOUD
-		// systemWebApps 
-		}elseif(($method=='get') and ($ex[$paracount-5] == 'v1.php') and ($ex[$paracount-4]=='cloud') and ($ex[$paracount-3] == 'system') and ($ex[$paracount-2] == 'webapps')){
+		// systemWebApps
+		}elseif(($method=='get') and ($ex[$paracount-5] == 'v1.php') and ($ex[$paracount-4]=='cloud') and ($ex[$paracount-3] == 'system') and ($ex[$paracount-2] == 'webapps')) {
 			OC_OCS::systemwebapps($format);
 
-		// quotaget 
-		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'quota')){
+		// quotaget
+		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'quota')) {
 			$user=$ex[$paracount-3];
-			OC_OCS::quotaget($format,$user);
+			OC_OCS::quotaget($format, $user);
 
-		// quotaset 
-		}elseif(($method=='post') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'quota')){
+		// quotaset
+		}elseif(($method=='post') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'quota')) {
 			$user=$ex[$paracount-3];
 			$quota = self::readData('post', 'quota', 'int');
-			OC_OCS::quotaset($format,$user,$quota);
+			OC_OCS::quotaset($format, $user, $quota);
 
-		// keygetpublic 
-		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'publickey')){
+		// keygetpublic
+		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'publickey')) {
 			$user=$ex[$paracount-3];
-			OC_OCS::publicKeyGet($format,$user);
+			OC_OCS::publicKeyGet($format, $user);
 
-		// keygetprivate 
-		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'privatekey')){
+		// keygetprivate
+		}elseif(($method=='get') and ($ex[$paracount-6] == 'v1.php') and ($ex[$paracount-5]=='cloud') and ($ex[$paracount-4] == 'user') and ($ex[$paracount-2] == 'privatekey')) {
 			$user=$ex[$paracount-3];
-			OC_OCS::privateKeyGet($format,$user);
+			OC_OCS::privateKeyGet($format, $user);
 
 
 // add more calls here
@@ -196,7 +196,7 @@ class OC_OCS {
 		}else{
 			$txt='Invalid query, please check the syntax. API specifications are here: http://www.freedesktop.org/wiki/Specifications/open-collaboration-services. DEBUG OUTPUT:'."\n";
 			$txt.=OC_OCS::getdebugoutput();
-			echo(OC_OCS::generatexml($format,'failed',999,$txt));
+			echo(OC_OCS::generatexml($format, 'failed', 999, $txt));
 		}
 		exit();
 	}
@@ -229,7 +229,7 @@ class OC_OCS {
 		if(isset($_SERVER['PHP_AUTH_PW']))   $authpw=$_SERVER['PHP_AUTH_PW']; else $authpw='';
 
 		if(empty($authuser)) {
-			if($forceuser){
+			if($forceuser) {
 				header('WWW-Authenticate: Basic realm="your valid user account or api key"');
 				header('HTTP/1.0 401 Unauthorized');
 				exit;
@@ -237,8 +237,8 @@ class OC_OCS {
 				$identifieduser='';
 			}
 		}else{
-			if(!OC_User::login($authuser,$authpw)){
-				if($forceuser){
+			if(!OC_User::login($authuser, $authpw)) {
+				if($forceuser) {
 					header('WWW-Authenticate: Basic realm="your valid user account or api key"');
 					header('HTTP/1.0 401 Unauthorized');
 					exit;
@@ -283,69 +283,69 @@ class OC_OCS {
 			$writer = xmlwriter_open_memory();
 			xmlwriter_set_indent( $writer, 2 );
 			xmlwriter_start_document($writer );
-			xmlwriter_start_element($writer,'ocs');
-			xmlwriter_start_element($writer,'meta');
-			xmlwriter_write_element($writer,'status',$status);
-			xmlwriter_write_element($writer,'statuscode',$statuscode);
-			xmlwriter_write_element($writer,'message',$message);
+			xmlwriter_start_element($writer, 'ocs');
+			xmlwriter_start_element($writer, 'meta');
+			xmlwriter_write_element($writer, 'status', $status);
+			xmlwriter_write_element($writer, 'statuscode', $statuscode);
+			xmlwriter_write_element($writer, 'message', $message);
 			if($itemscount<>'') xmlwriter_write_element($writer,'totalitems',$itemscount);
-			if(!empty($itemsperpage)) xmlwriter_write_element($writer,'itemsperpage',$itemsperpage);
+			if(!empty($itemsperpage)) xmlwriter_write_element($writer, 'itemsperpage', $itemsperpage);
 			xmlwriter_end_element($writer);
 			if($dimension=='0') {
 				// 0 dimensions
-				xmlwriter_write_element($writer,'data',$data);
+				xmlwriter_write_element($writer, 'data', $data);
 
 			}elseif($dimension=='1') {
-				xmlwriter_start_element($writer,'data');
+				xmlwriter_start_element($writer, 'data');
 				foreach($data as $key=>$entry) {
-				xmlwriter_write_element($writer,$key,$entry);
+					xmlwriter_write_element($writer, $key, $entry);
 				}
 				xmlwriter_end_element($writer);
 
 			}elseif($dimension=='2') {
 				xmlwriter_start_element($writer,'data');
 				foreach($data as $entry) {
-				xmlwriter_start_element($writer,$tag);
-				if(!empty($tagattribute)) {
-				xmlwriter_write_attribute($writer,'details',$tagattribute);
-				}
-				foreach($entry as $key=>$value) {
-				if(is_array($value)){
-				foreach($value as $k=>$v) {
-					xmlwriter_write_element($writer,$k,$v);
-				}
-				} else {
-				xmlwriter_write_element($writer,$key,$value);
-				}
-				}
-				xmlwriter_end_element($writer);
-				}
+					xmlwriter_start_element($writer, $tag);
+					if(!empty($tagattribute)) {
+						xmlwriter_write_attribute($writer, 'details', $tagattribute);
+					}
+					foreach($entry as $key=>$value) {
+						if(is_array($value)) {
+							foreach($value as $k=>$v) {
+								xmlwriter_write_element($writer, $k, $v);
+							}
+						} else {
+							xmlwriter_write_element($writer, $key, $value);
+						}
+					}
+					xmlwriter_end_element($writer);
+					}
 				xmlwriter_end_element($writer);
 
 			}elseif($dimension=='3') {
-				xmlwriter_start_element($writer,'data');
+				xmlwriter_start_element($writer, 'data');
 				foreach($data as $entrykey=>$entry) {
-				xmlwriter_start_element($writer,$tag);
-				if(!empty($tagattribute)) {
-				xmlwriter_write_attribute($writer,'details',$tagattribute);
-				}
-				foreach($entry as $key=>$value) {
-				if(is_array($value)){
-				xmlwriter_start_element($writer,$entrykey);
-				foreach($value as $k=>$v) {
-					xmlwriter_write_element($writer,$k,$v);
-				}
-				xmlwriter_end_element($writer);
-				} else {
-				xmlwriter_write_element($writer,$key,$value);
-				}
-				}
-				xmlwriter_end_element($writer);
+					xmlwriter_start_element($writer, $tag);
+					if(!empty($tagattribute)) {
+						xmlwriter_write_attribute($writer, 'details', $tagattribute);
+					}
+					foreach($entry as $key=>$value) {
+						if(is_array($value)) {
+							xmlwriter_start_element($writer, $entrykey);
+							foreach($value as $k=>$v) {
+								xmlwriter_write_element($writer, $k, $v);
+							}
+							xmlwriter_end_element($writer);
+						} else {
+							xmlwriter_write_element($writer, $key, $value);
+						}
+					}
+					xmlwriter_end_element($writer);
 				}
 				xmlwriter_end_element($writer);
 			}elseif($dimension=='dynamic') {
-				xmlwriter_start_element($writer,'data');
-				OC_OCS::toxml($writer,$data,'comment');
+				xmlwriter_start_element($writer, 'data');
+				OC_OCS::toxml($writer, $data, 'comment');
 				xmlwriter_end_element($writer);
 			}
 
@@ -363,19 +363,16 @@ class OC_OCS {
 			if (is_numeric($key)) {
 				$key = $node;
 			}
-			if (is_array($value)){
-				xmlwriter_start_element($writer,$key);
-				OC_OCS::toxml($writer,$value,$node);
+			if (is_array($value)) {
+				xmlwriter_start_element($writer, $key);
+				OC_OCS::toxml($writer,$value, $node);
 				xmlwriter_end_element($writer);
 			}else{
-				xmlwriter_write_element($writer,$key,$value);
+				xmlwriter_write_element($writer, $key, $value);
 			}
 		}
 	}
 
-
-
-
 	/**
 	* return the config data of this server
 	* @param string $format
@@ -383,17 +380,16 @@ class OC_OCS {
 	*/
 	private static function apiConfig($format) {
 		$user=OC_OCS::checkpassword(false);
-		$url=substr(OCP\Util::getServerHost().$_SERVER['SCRIPT_NAME'],0,-11).'';
+		$url=substr(OCP\Util::getServerHost().$_SERVER['SCRIPT_NAME'], 0, -11).'';
 
 		$xml['version']='1.7';
 		$xml['website']='ownCloud';
 		$xml['host']=OCP\Util::getServerHost();
 		$xml['contact']='';
 		$xml['ssl']='false';
-		echo(OC_OCS::generatexml($format,'ok',100,'',$xml,'config','',1));
+		echo(OC_OCS::generatexml($format, 'ok', 100, '', $xml, 'config', '', 1));
 	}
 
-
 	/**
 	* check if the provided login/apikey/password is valid
 	* @param string $format
@@ -402,20 +398,18 @@ class OC_OCS {
 	* @return string xml/json
 	*/
 	private static function personCheck($format,$login,$passwd) {
-		if($login<>''){
-			if(OC_User::login($login,$passwd)){
+		if($login<>'') {
+			if(OC_User::login($login, $passwd)) {
 				$xml['person']['personid']=$login;
-				echo(OC_OCS::generatexml($format,'ok',100,'',$xml,'person','check',2));
+				echo(OC_OCS::generatexml($format, 'ok', 100, '', $xml, 'person', 'check', 2));
 			}else{
-				echo(OC_OCS::generatexml($format,'failed',102,'login not valid'));
+				echo(OC_OCS::generatexml($format, 'failed', 102, 'login not valid'));
 			}
 		}else{
-			echo(OC_OCS::generatexml($format,'failed',101,'please specify all mandatory fields'));
+			echo(OC_OCS::generatexml($format, 'failed', 101, 'please specify all mandatory fields'));
 		}
 	}
 
-
-
 	// ACTIVITY API #############################################
 
 	/**
@@ -425,12 +419,12 @@ class OC_OCS {
 	* @param string $pagesize
 	* @return string xml/json
 	*/
-	private static function activityGet($format,$page,$pagesize) {
+	private static function activityGet($format, $page, $pagesize) {
 		$user=OC_OCS::checkpassword();
 
 			//TODO
 
-		$txt=OC_OCS::generatexml($format,'ok',100,'',$xml,'activity','full',2,$totalcount,$pagesize);
+		$txt=OC_OCS::generatexml($format, 'ok', 100, '', $xml, 'activity', 'full', 2, $totalcount,$pagesize);
 		echo($txt);
 	}
 
@@ -443,7 +437,7 @@ class OC_OCS {
 	private static function activityPut($format,$message) {
 		// not implemented in ownCloud
 		$user=OC_OCS::checkpassword();
-		echo(OC_OCS::generatexml($format,'ok',100,''));
+		echo(OC_OCS::generatexml($format, 'ok', 100, ''));
 	}
 
 	// PRIVATEDATA API #############################################
@@ -455,9 +449,9 @@ class OC_OCS {
 	* @param string $key
 	* @return string xml/json
 	*/
-	private static function privateDataGet($format,$app="",$key="") {
+	private static function privateDataGet($format, $app="", $key="") {
 		$user=OC_OCS::checkpassword();
-		$result=OC_OCS::getData($user,$app,$key);
+		$result=OC_OCS::getData($user, $app, $key);
 		$xml=array();
 		foreach($result as $i=>$log) {
 			$xml[$i]['key']=$log['key'];
@@ -480,8 +474,8 @@ class OC_OCS {
 	*/
 	private static function privateDataSet($format, $app, $key, $value) {
 		$user=OC_OCS::checkpassword();
-		if(OC_OCS::setData($user,$app,$key,$value)){
-			echo(OC_OCS::generatexml($format,'ok',100,''));
+		if(OC_OCS::setData($user, $app, $key, $value)) {
+			echo(OC_OCS::generatexml($format, 'ok', 100, ''));
 		}
 	}
 
@@ -493,15 +487,15 @@ class OC_OCS {
 	* @return string xml/json
 	*/
 	private static function privateDataDelete($format, $app, $key) {
-		if($key=="" or $app==""){
+		if($key=="" or $app=="") {
 			return; //key and app are NOT optional here
 		}
 		$user=OC_OCS::checkpassword();
-		if(OC_OCS::deleteData($user,$app,$key)){
-			echo(OC_OCS::generatexml($format,'ok',100,''));
+		if(OC_OCS::deleteData($user, $app, $key)) {
+			echo(OC_OCS::generatexml($format, 'ok', 100, ''));
 		}
 	}
-	
+
 	/**
 	* get private data
 	* @param string $user
@@ -510,24 +504,24 @@ class OC_OCS {
 	* @param bool $like use LIKE instead of = when comparing keys
 	* @return array
 	*/
-	public static function getData($user,$app="",$key="") {
-		if($app){
+	public static function getData($user, $app="", $key="") {
+		if($app) {
 			$apps=array($app);
 		}else{
 			$apps=OC_Preferences::getApps($user);
 		}
-		if($key){
+		if($key) {
 			$keys=array($key);
 		}else{
-			foreach($apps as $app){
-				$keys=OC_Preferences::getKeys($user,$app);
+			foreach($apps as $app) {
+				$keys=OC_Preferences::getKeys($user, $app);
 			}
 		}
 		$result=array();
-		foreach($apps as $app){
-			foreach($keys as $key){
-				$value=OC_Preferences::getValue($user,$app,$key);
-				$result[]=array('app'=>$app,'key'=>$key,'value'=>$value);
+		foreach($apps as $app) {
+			foreach($keys as $key) {
+				$value=OC_Preferences::getValue($user, $app, $key);
+				$result[]=array('app'=>$app, 'key'=>$key, 'value'=>$value);
 			}
 		}
 		return $result;
@@ -542,7 +536,7 @@ class OC_OCS {
 	* @return bool
 	*/
 	public static function setData($user, $app, $key, $value) {
-		return OC_Preferences::setValue($user,$app,$key,$value);
+		return OC_Preferences::setValue($user, $app, $key, $value);
 	}
 
 	/**
@@ -553,7 +547,7 @@ class OC_OCS {
 	* @return string xml/json
 	*/
 	public static function deleteData($user, $app, $key) {
-		return OC_Preferences::deleteKey($user,$app,$key);
+		return OC_Preferences::deleteKey($user, $app, $key);
 	}
 
 
@@ -592,7 +586,7 @@ class OC_OCS {
                 $login=OC_OCS::checkpassword();
 		if(OC_Group::inGroup($login, 'admin') or ($login==$user)) {
 
-			if(OC_User::userExists($user)){
+			if(OC_User::userExists($user)) {
 				// calculate the disc space
 				$user_dir = '/'.$user.'/files';
 				OC_Filesystem::init($user_dir);
@@ -653,7 +647,7 @@ class OC_OCS {
         private static function publicKeyGet($format,$user) {
                 $login=OC_OCS::checkpassword();
 
-		if(OC_User::userExists($user)){
+		if(OC_User::userExists($user)) {
 			// calculate the disc space
 			$txt='this is the public key of '.$user;
 			echo($txt);
@@ -672,7 +666,7 @@ class OC_OCS {
                 $login=OC_OCS::checkpassword();
                 if(OC_Group::inGroup($login, 'admin') or ($login==$user)) {
 
-                        if(OC_User::userExists($user)){
+                        if(OC_User::userExists($user)) {
                                 // calculate the disc space
                                 $txt='this is the private key of '.$user;
                                 echo($txt);
diff --git a/lib/ocsclient.php b/lib/ocsclient.php
index ae35470cff6..8596ea0b3c7 100644
--- a/lib/ocsclient.php
+++ b/lib/ocsclient.php
@@ -29,22 +29,22 @@
 class OC_OCSClient{
 
 	/**
-	 * @brief Get the url of the OCS AppStore server. 
+	 * @brief Get the url of the OCS AppStore server.
 	 * @returns string of the AppStore server
 	 *
 	 * This function returns the url of the OCS AppStore server. It´s possible to set it in the config file or it will fallback to the default
 	 */
-	private static function getAppStoreURL(){
+	private static function getAppStoreURL() {
 		$url = OC_Config::getValue('appstoreurl', 'http://api.apps.owncloud.com/v1');
 		return($url);
 	}
 
         /**
-         * @brief Get the url of the OCS KB server. 
+         * @brief Get the url of the OCS KB server.
          * @returns string of the KB server
          * This function returns the url of the OCS knowledge base server. It´s possible to set it in the config file or it will fallback to the default
          */
-        private static function getKBURL(){
+        private static function getKBURL() {
                 $url = OC_Config::getValue('knowledgebaseurl', 'http://api.apps.owncloud.com/v1');
                 return($url);
         }
@@ -56,18 +56,18 @@ class OC_OCSClient{
 	 *
 	 * This function returns a list of all the application categories on the OCS server
 	 */
-	public static function getCategories(){
-		if(OC_Config::getValue('appstoreenabled', true)==false){
+	public static function getCategories() {
+		if(OC_Config::getValue('appstoreenabled', true)==false) {
 			return NULL;
 		}
 		$url=OC_OCSClient::getAppStoreURL().'/content/categories';
-	
+
 		$xml=@file_get_contents($url);
-		if($xml==FALSE){
+		if($xml==FALSE) {
 			return NULL;
 		}
 		$data=simplexml_load_string($xml);
-	
+
 		$tmp=$data->data;
 		$cats=array();
 
@@ -88,8 +88,8 @@ class OC_OCSClient{
 	 *
 	 * This function returns a list of all the applications on the OCS server
 	 */
-	public static function getApplications($categories,$page){
-		if(OC_Config::getValue('appstoreenabled', true)==false){
+	public static function getApplications($categories,$page,$filter) {
+		if(OC_Config::getValue('appstoreenabled', true)==false) {
 			return(array());
 		}
 
@@ -98,10 +98,13 @@ class OC_OCSClient{
 		}else{
 			$categoriesstring=$categories;
 		}
-		$url=OC_OCSClient::getAppStoreURL().'/content/data?categories='.urlencode($categoriesstring).'&sortmode=new&page='.urlencode($page).'&pagesize=100';
+
+		$version='&version='.implode('x',\OC_Util::getVersion());
+		$filterurl='&filter='.urlencode($filter);
+		$url=OC_OCSClient::getAppStoreURL().'/content/data?categories='.urlencode($categoriesstring).'&sortmode=new&page='.urlencode($page).'&pagesize=100'.$filterurl.$version;
 		$apps=array();
 		$xml=@file_get_contents($url);
-		if($xml==FALSE){
+		if($xml==FALSE) {
 			return NULL;
 		}
 		$data=simplexml_load_string($xml);
@@ -119,9 +122,9 @@ class OC_OCSClient{
 			$app['preview']=(string)$tmp[$i]->smallpreviewpic1;
 			$app['changed']=strtotime($tmp[$i]->changed);
 			$app['description']=(string)$tmp[$i]->description;
-	
+
 			$apps[]=$app;
-		} 
+		}
 		return $apps;
 	}
 
@@ -132,14 +135,14 @@ class OC_OCSClient{
 	 *
 	 * This function returns an  applications from the OCS server
 	 */
-	public static function getApplication($id){
-		if(OC_Config::getValue('appstoreenabled', true)==false){
+	public static function getApplication($id) {
+		if(OC_Config::getValue('appstoreenabled', true)==false) {
 			return NULL;
 		}
 		$url=OC_OCSClient::getAppStoreURL().'/content/data/'.urlencode($id);
 
 		$xml=@file_get_contents($url);
-		if($xml==FALSE){
+		if($xml==FALSE) {
 			OC_Log::write('core','Unable to parse OCS content',OC_Log::FATAL);
 			return NULL;
 		}
@@ -169,14 +172,14 @@ class OC_OCSClient{
 		*
 		* This function returns an download url for an applications from the OCS server
 		*/
-	public static function getApplicationDownload($id,$item){
-		if(OC_Config::getValue('appstoreenabled', true)==false){
+	public static function getApplicationDownload($id,$item) {
+		if(OC_Config::getValue('appstoreenabled', true)==false) {
 			return NULL;
 		}
 		$url=OC_OCSClient::getAppStoreURL().'/content/download/'.urlencode($id).'/'.urlencode($item);
 
 		$xml=@file_get_contents($url);
-		if($xml==FALSE){
+		if($xml==FALSE) {
 			OC_Log::write('core','Unable to parse OCS content',OC_Log::FATAL);
 			return NULL;
 		}
@@ -184,10 +187,10 @@ class OC_OCSClient{
 
 		$tmp=$data->data->content;
 		$app=array();
-		if(isset($tmp->downloadlink)) { 
+		if(isset($tmp->downloadlink)) {
 			$app['downloadlink']=$tmp->downloadlink;
 		}else{
-	 		$app['downloadlink']='';
+			$app['downloadlink']='';
 		}
 		return $app;
 	}
@@ -199,8 +202,8 @@ class OC_OCSClient{
 	 *
 	 * This function returns a list of all the knowledgebase entries from the OCS server
 	 */
-	public static function getKnownledgebaseEntries($page,$pagesize,$search=''){	
-		if(OC_Config::getValue('knowledgebaseenabled', true)==false){
+	public static function getKnownledgebaseEntries($page,$pagesize,$search='') {
+		if(OC_Config::getValue('knowledgebaseenabled', true)==false) {
 			$kbe=array();
 			$kbe['totalitems']=0;
 			return $kbe;
@@ -213,7 +216,7 @@ class OC_OCSClient{
 
 		$kbe=array();
 		$xml=@file_get_contents($url);
-		if($xml==FALSE){
+		if($xml==FALSE) {
 			OC_Log::write('core','Unable to parse knowledgebase content',OC_Log::FATAL);
 			return NULL;
 		}
diff --git a/lib/preferences.php b/lib/preferences.php
index b6c4c3a163f..3d61887785c 100644
--- a/lib/preferences.php
+++ b/lib/preferences.php
@@ -45,13 +45,13 @@ class OC_Preferences{
 	 * This function returns a list of all users that have at least one entry
 	 * in the preferences table.
 	 */
-	public static function getUsers(){
+	public static function getUsers() {
 		// No need for more comments
 		$query = OC_DB::prepare( 'SELECT DISTINCT( `userid` ) FROM `*PREFIX*preferences`' );
 		$result = $query->execute();
 
 		$users = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$users[] = $row["userid"];
 		}
 
@@ -66,13 +66,13 @@ class OC_Preferences{
 	 * This function returns a list of all apps of the user that have at least
 	 * one entry in the preferences table.
 	 */
-	public static function getApps( $user ){
+	public static function getApps( $user ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'SELECT DISTINCT( `appid` ) FROM `*PREFIX*preferences` WHERE `userid` = ?' );
 		$result = $query->execute( array( $user ));
 
 		$apps = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$apps[] = $row["appid"];
 		}
 
@@ -88,13 +88,13 @@ class OC_Preferences{
 	 * This function gets all keys of an app of an user. Please note that the
 	 * values are not returned.
 	 */
-	public static function getKeys( $user, $app ){
+	public static function getKeys( $user, $app ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'SELECT `configkey` FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ?' );
 		$result = $query->execute( array( $user, $app ));
 
 		$keys = array();
-		while( $row = $result->fetchRow()){
+		while( $row = $result->fetchRow()) {
 			$keys[] = $row["configkey"];
 		}
 
@@ -112,13 +112,13 @@ class OC_Preferences{
 	 * This function gets a value from the prefernces table. If the key does
 	 * not exist the default value will be returnes
 	 */
-	public static function getValue( $user, $app, $key, $default = null ){
+	public static function getValue( $user, $app, $key, $default = null ) {
 		// Try to fetch the value, return default if not exists.
 		$query = OC_DB::prepare( 'SELECT `configvalue` FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?' );
 		$result = $query->execute( array( $user, $app, $key ));
-		
+
 		$row = $result->fetchRow();
-		if($row){
+		if($row) {
 			return $row["configvalue"];
 		}else{
 			return $default;
@@ -136,13 +136,13 @@ class OC_Preferences{
 	 * Adds a value to the preferences. If the key did not exist before, it
 	 * will be added automagically.
 	 */
-	public static function setValue( $user, $app, $key, $value ){
+	public static function setValue( $user, $app, $key, $value ) {
 		// Check if the key does exist
 		$query = OC_DB::prepare( 'SELECT `configvalue` FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?' );
 		$values=$query->execute(array($user,$app,$key))->fetchAll();
 		$exists=(count($values)>0);
 
-		if( !$exists ){
+		if( !$exists ) {
 			$query = OC_DB::prepare( 'INSERT INTO `*PREFIX*preferences` ( `userid`, `appid`, `configkey`, `configvalue` ) VALUES( ?, ?, ?, ? )' );
 			$query->execute( array( $user, $app, $key, $value ));
 		}
@@ -162,7 +162,7 @@ class OC_Preferences{
 	 *
 	 * Deletes a key.
 	 */
-	public static function deleteKey( $user, $app, $key ){
+	public static function deleteKey( $user, $app, $key ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ? AND `configkey` = ?' );
 		$result = $query->execute( array( $user, $app, $key ));
@@ -178,7 +178,7 @@ class OC_Preferences{
 	 *
 	 * Removes all keys in appconfig belonging to the app and the user.
 	 */
-	public static function deleteApp( $user, $app ){
+	public static function deleteApp( $user, $app ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ?' );
 		$result = $query->execute( array( $user, $app ));
@@ -193,7 +193,7 @@ class OC_Preferences{
 	 *
 	 * Removes all keys in appconfig belonging to the user.
 	 */
-	public static function deleteUser( $user ){
+	public static function deleteUser( $user ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*preferences` WHERE `userid` = ?' );
 		$result = $query->execute( array( $user ));
@@ -208,7 +208,7 @@ class OC_Preferences{
 	 *
 	 * Removes all keys in preferences belonging to the app.
 	 */
-	public static function deleteAppFromAllUsers( $app ){
+	public static function deleteAppFromAllUsers( $app ) {
 		// No need for more comments
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*preferences` WHERE `appid` = ?' );
 		$result = $query->execute( array( $app ));
diff --git a/lib/public/app.php b/lib/public/app.php
index e74f1550740..809a656f17f 100644
--- a/lib/public/app.php
+++ b/lib/public/app.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,120 +34,109 @@ namespace OCP;
  * This class provides functions to manage apps in ownCloud
  */
 class App {
-        /**
-         * @brief Makes owncloud aware of this app
-         * @brief This call is deprecated and not necessary to use.
-         * @param $data array with all information
-         * @returns true/false
-         *
-         * @deprecated this method is deprecated
-         * Do not call it anymore
-         * It'll remain in our public API for compatibility reasons
-         *
-         */
-        public static function register( $data ){
+	/**
+	 * @brief Makes owncloud aware of this app
+	 * @brief This call is deprecated and not necessary to use.
+	 * @param $data array with all information
+	 * @returns true/false
+	 *
+	 * @deprecated this method is deprecated
+	 * Do not call it anymore
+	 * It'll remain in our public API for compatibility reasons
+	 *
+	 */
+	public static function register( $data ) {
 		return true; // don't do anything
-        }
+	}
 
-        /**
-         * @brief adds an entry to the navigation
-         * @param $data array containing the data
-         * @returns true/false
-         *
-         * This function adds a new entry to the navigation visible to users. $data
-         * is an associative array.
-         * The following keys are required:
-         *   - id: unique id for this entry ('addressbook_index')
-         *   - href: link to the page
-         *   - name: Human readable name ('Addressbook')
-         *
-         * The following keys are optional:
-         *   - icon: path to the icon of the app
-         *   - order: integer, that influences the position of your application in
-         *     the navigation. Lower values come first.
-         */
-        public static function addNavigationEntry( $data ){
+	/**
+	 * @brief adds an entry to the navigation
+	 * @param $data array containing the data
+	 * @returns true/false
+	 *
+	 * This function adds a new entry to the navigation visible to users. $data
+	 * is an associative array.
+	 * The following keys are required:
+	 *   - id: unique id for this entry ('addressbook_index')
+	 *   - href: link to the page
+	 *   - name: Human readable name ('Addressbook')
+	 *
+	 * The following keys are optional:
+	 *   - icon: path to the icon of the app
+	 *   - order: integer, that influences the position of your application in
+	 *	 the navigation. Lower values come first.
+	 */
+	public static function addNavigationEntry( $data ) {
 		return \OC_App::addNavigationEntry( $data );
 	}
 
-
-        /**
-         * @brief marks a navigation entry as active
-         * @param $id id of the entry
-         * @returns true/false
-         *
-         * This function sets a navigation entry as active and removes the 'active'
-         * property from all other entries. The templates can use this for
-         * highlighting the current position of the user.
-         */
-        public static function setActiveNavigationEntry( $id ){
+	/**
+	 * @brief marks a navigation entry as active
+	 * @param $id id of the entry
+	 * @returns true/false
+	 *
+	 * This function sets a navigation entry as active and removes the 'active'
+	 * property from all other entries. The templates can use this for
+	 * highlighting the current position of the user.
+	 */
+	public static function setActiveNavigationEntry( $id ) {
 		return \OC_App::setActiveNavigationEntry( $id );
 	}
 
-
-        /**
-         * @brief Register a Configuration Screen that should appear in the personal settings section.
-         * @param $app string appid
-         * @param $page string page to be included
-        */
-        public static function registerPersonal( $app, $page ){
+	/**
+	 * @brief Register a Configuration Screen that should appear in the personal settings section.
+	 * @param $app string appid
+	 * @param $page string page to be included
+	*/
+	public static function registerPersonal( $app, $page ) {
 		return \OC_App::registerPersonal( $app, $page );
 	}
 
-
 	/**
-         * @brief Register a Configuration Screen that should appear in the Admin section.
-         * @param $app string appid
-         * @param $page string page to be included
+	 * @brief Register a Configuration Screen that should appear in the Admin section.
+	 * @param $app string appid
+	 * @param $page string page to be included
 	 */
-	public static function registerAdmin( $app, $page ){
+	public static function registerAdmin( $app, $page ) {
 		return \OC_App::registerAdmin( $app, $page );
 	}
 
-
-        /**
-         * @brief Read app metadata from the info.xml file
-         * @param string $app id of the app or the path of the info.xml file
-         * @param boolean path (optional)
-         * @returns array
-        */
-        public static function getAppInfo( $app, $path=false ){
+	/**
+	 * @brief Read app metadata from the info.xml file
+	 * @param string $app id of the app or the path of the info.xml file
+	 * @param boolean path (optional)
+	 * @returns array
+	*/
+	public static function getAppInfo( $app, $path=false ) {
 		return \OC_App::getAppInfo( $app, $path);
 	}
 
-
-
-        /**
-         * @brief checks whether or not an app is enabled
-         * @param $app app
-         * @returns true/false
-         *
-         * This function checks whether or not an app is enabled.
-         */
-        public static function isEnabled( $app ){
+	/**
+	 * @brief checks whether or not an app is enabled
+	 * @param $app app
+	 * @returns true/false
+	 *
+	 * This function checks whether or not an app is enabled.
+	 */
+	public static function isEnabled( $app ) {
 		return \OC_App::isEnabled( $app );
 	}
 
+	/**
+	 * @brief Check if the app is enabled, redirects to home if not
+	 * @param $app app
+	 * @returns true/false
+	*/
+	public static function checkAppEnabled( $app ) {
+		return \OC_Util::checkAppEnabled( $app );
+	}
 
-        /**
-         * @brief Check if the app is enabled, redirects to home if not 
-         * @param $app app
-         * @returns true/false
-        */
-        public static function checkAppEnabled( $app ){
-                return \OC_Util::checkAppEnabled( $app );
-        }
-
-
-        /**
-         * @brief Get the last version of the app, either from appinfo/version or from appinfo/info.xml 
-         * @param $app app
-         * @returns true/false
-         */
-        public static function getAppVersion( $app ){
+	/**
+	 * @brief Get the last version of the app, either from appinfo/version or from appinfo/info.xml
+	 * @param $app app
+	 * @returns true/false
+	 */
+	public static function getAppVersion( $app ) {
 		return \OC_App::getAppVersion( $app );
 	}
-
-
-
 }
diff --git a/lib/public/backgroundjob.php b/lib/public/backgroundjob.php
index 834bebb5c3c..aba7d2b7620 100644
--- a/lib/public/backgroundjob.php
+++ b/lib/public/backgroundjob.php
@@ -24,7 +24,7 @@
  * Public interface of ownCloud forbackground jobs.
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -42,7 +42,7 @@ namespace OCP;
  * An example of the queued task would be the creation of the thumbnail. As
  * soon as the user uploads a picture the gallery app registers the queued
  * task "create thumbnail" and saves the path in the parameter instead of doing
- * the work right away. This makes the app more responsive. As soon as the task 
+ * the work right away. This makes the app more responsive. As soon as the task
  * is done it will be deleted from the list.
  */
 class BackgroundJob {
@@ -52,7 +52,7 @@ class BackgroundJob {
 	 * @param $method method name
 	 * @return true
 	 */
-	public static function addRegularTask( $klass, $method ){
+	public static function addRegularTask( $klass, $method ) {
 		return \OC_BackgroundJob_RegularTask::register( $klass, $method );
 	}
 
@@ -62,7 +62,7 @@ class BackgroundJob {
 	 *
 	 * key is string "$klass-$method", value is array( $klass, $method )
 	 */
-	static public function allRegularTasks(){
+	static public function allRegularTasks() {
 		return \OC_BackgroundJob_RegularTask::all();
 	}
 
@@ -71,7 +71,7 @@ class BackgroundJob {
 	 * @param $id ID of the task
 	 * @return associative array
 	 */
-	public static function findQueuedTask( $id ){
+	public static function findQueuedTask( $id ) {
 		return \OC_BackgroundJob_QueuedTask::find( $id );
 	}
 
@@ -79,7 +79,7 @@ class BackgroundJob {
 	 * @brief Gets all queued tasks
 	 * @return array with associative arrays
 	 */
-	public static function allQueuedTasks(){
+	public static function allQueuedTasks() {
 		return \OC_BackgroundJob_QueuedTask::all();
 	}
 
@@ -88,7 +88,7 @@ class BackgroundJob {
 	 * @param $app app name
 	 * @return array with associative arrays
 	 */
-	public static function queuedTaskWhereAppIs( $app ){
+	public static function queuedTaskWhereAppIs( $app ) {
 		return \OC_BackgroundJob_QueuedTask::whereAppIs( $app );
 	}
 
@@ -100,7 +100,7 @@ class BackgroundJob {
 	 * @param $parameters all useful data as text
 	 * @return id of task
 	 */
-	public static function addQueuedTask( $app, $klass, $method, $parameters ){
+	public static function addQueuedTask( $app, $klass, $method, $parameters ) {
 		return \OC_BackgroundJob_QueuedTask::add( $app, $klass, $method, $parameters );
 	}
 
@@ -111,7 +111,7 @@ class BackgroundJob {
 	 *
 	 * Deletes a report
 	 */
-	public static function deleteQueuedTask( $id ){
+	public static function deleteQueuedTask( $id ) {
 		return \OC_BackgroundJob_QueuedTask::delete( $id );
 	}
 }
diff --git a/lib/public/config.php b/lib/public/config.php
index ab01902ffe6..377150115ff 100644
--- a/lib/public/config.php
+++ b/lib/public/config.php
@@ -27,7 +27,7 @@
  */
 
 /**
- * @brief use OCP namespace for all classes that are considered public. 
+ * @brief use OCP namespace for all classes that are considered public.
  *
  * Classes that use this namespace are for use by apps, and not for use by internal
  * OC classes
@@ -38,8 +38,6 @@ namespace OCP;
  * This class provides functions to read and write configuration data. configuration can be on a system, application or user level
  */
 class Config {
-
-
 	/**
 	 * @brief Gets a value from config.php
 	 * @param $key key
@@ -49,11 +47,10 @@ class Config {
 	 * This function gets the value from config.php. If it does not exist,
 	 * $default will be returned.
 	 */
-	public static function getSystemValue( $key, $default = null ){
+	public static function getSystemValue( $key, $default = null ) {
 		return(\OC_Config::getValue( $key, $default ));
 	}
 
-
 	/**
 	 * @brief Sets a value
 	 * @param $key key
@@ -63,74 +60,64 @@ class Config {
 	 * This function sets the value and writes the config.php. If the file can
 	 * not be written, false will be returned.
 	 */
-	public static function setSystemValue( $key, $value ){
+	public static function setSystemValue( $key, $value ) {
 		return(\OC_Config::setValue( $key, $value ));
 	}
 
-
-        /**
-         * @brief Gets the config value
-         * @param $app app
-         * @param $key key
-         * @param $default = null, default value if the key does not exist
-         * @returns the value or $default
-         *
-         * This function gets a value from the appconfig table. If the key does
-         * not exist the default value will be returnes
-         */
-        public static function getAppValue( $app, $key, $default = null ){
+	/**
+	 * @brief Gets the config value
+	 * @param $app app
+	 * @param $key key
+	 * @param $default = null, default value if the key does not exist
+	 * @returns the value or $default
+	 *
+	 * This function gets a value from the appconfig table. If the key does
+	 * not exist the default value will be returnes
+	 */
+	public static function getAppValue( $app, $key, $default = null ) {
 		return(\OC_Appconfig::getValue( $app, $key, $default ));
 	}
 
-
-        /**
-         * @brief sets a value in the appconfig
-         * @param $app app
-         * @param $key key
-         * @param $value value
-         * @returns true/false
-         *
-         * Sets a value. If the key did not exist before it will be created.
-         */
-        public static function setAppValue( $app, $key, $value ){
+	/**
+	 * @brief sets a value in the appconfig
+	 * @param $app app
+	 * @param $key key
+	 * @param $value value
+	 * @returns true/false
+	 *
+	 * Sets a value. If the key did not exist before it will be created.
+	 */
+	public static function setAppValue( $app, $key, $value ) {
 		return(\OC_Appconfig::setValue( $app, $key, $value ));
 	}
 
-
-        /**
-         * @brief Gets the preference
-         * @param $user user
-         * @param $app app
-         * @param $key key
-         * @param $default = null, default value if the key does not exist
-         * @returns the value or $default
-         *
-         * This function gets a value from the prefernces table. If the key does
-         * not exist the default value will be returnes
-         */
-        public static function getUserValue( $user, $app, $key, $default = null ){
+	/**
+	 * @brief Gets the preference
+	 * @param $user user
+	 * @param $app app
+	 * @param $key key
+	 * @param $default = null, default value if the key does not exist
+	 * @returns the value or $default
+	 *
+	 * This function gets a value from the prefernces table. If the key does
+	 * not exist the default value will be returnes
+	 */
+	public static function getUserValue( $user, $app, $key, $default = null ) {
 		return(\OC_Preferences::getValue( $user, $app, $key, $default ));
 	}
 
-
-        /**
-         * @brief sets a value in the preferences
-         * @param $user user
-         * @param $app app
-         * @param $key key
-         * @param $value value
-         * @returns true/false
-         *
-         * Adds a value to the preferences. If the key did not exist before, it
-         * will be added automagically.
-         */
-        public static function setUserValue( $user, $app, $key, $value ){
+	/**
+	 * @brief sets a value in the preferences
+	 * @param $user user
+	 * @param $app app
+	 * @param $key key
+	 * @param $value value
+	 * @returns true/false
+	 *
+	 * Adds a value to the preferences. If the key did not exist before, it
+	 * will be added automagically.
+	 */
+	public static function setUserValue( $user, $app, $key, $value ) {
 		return(\OC_Preferences::setValue(  $user, $app, $key, $value ));
 	}
-
-
-
-
-
-
 }
diff --git a/lib/public/db.php b/lib/public/db.php
index 23c670cf442..6ce62b27ca2 100644
--- a/lib/public/db.php
+++ b/lib/public/db.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,8 +34,6 @@ namespace OCP;
  * This class provides access to the internal database system. Use this class exlusively if you want to access databases
  */
 class DB {
-
-
 	/**
 	 * @brief Prepare a SQL query
 	 * @param $query Query string
@@ -43,11 +41,10 @@ class DB {
 	 *
 	 * SQL query via MDB2 prepare(), needs to be execute()'d!
 	 */
-	static public function prepare( $query, $limit=null, $offset=null ){
+	static public function prepare( $query, $limit=null, $offset=null ) {
 		return(\OC_DB::prepare($query,$limit,$offset));
 	}
 
-
 	/**
 	 * @brief gets last value of autoincrement
 	 * @param $table string The optional table name (will replace *PREFIX*) and add sequence suffix
@@ -58,36 +55,30 @@ class DB {
 	 * Call this method right after the insert command or other functions may
 	 * cause trouble!
 	 */
-	public static function insertid($table=null){
+	public static function insertid($table=null) {
 		return(\OC_DB::insertid($table));
 	}
 
-
 	/**
 	 * @brief Start a transaction
 	 */
-	public static function beginTransaction(){
+	public static function beginTransaction() {
 		return(\OC_DB::beginTransaction());
 	}
 
-
 	/**
 	 * @brief Commit the database changes done during a transaction that is in progress
 	 */
-	public static function commit(){
+	public static function commit() {
 		return(\OC_DB::commit());
 	}
 
-
 	/**
 	 * @brief check if a result is an error, works with MDB2 and PDOException
 	 * @param mixed $result
 	 * @return bool
 	 */
-	public static function isError($result){
+	public static function isError($result) {
 		return(\OC_DB::isError($result));
 	}
-
-
-
 }
diff --git a/lib/public/files.php b/lib/public/files.php
index 32b3f036744..90889c59ad8 100644
--- a/lib/public/files.php
+++ b/lib/public/files.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,8 +34,6 @@ namespace OCP;
  * This class provides access to the internal filesystem abstraction layer. Use this class exlusively if you want to access files
  */
 class Files {
-
-
 	/**
 	 * @brief Recusive deletion of folders
 	 * @param string $dir path to the folder
@@ -45,29 +43,26 @@ class Files {
 		\OC_Helper::rmdirr( $dir );
 	}
 
-
 	/**
 	 * get the mimetype form a local file
 	 * @param string path
 	 * @return string
 	 * does NOT work for ownClouds filesystem, use OC_FileSystem::getMimeType instead
 	 */
-	static function getMimeType( $path ){
+	static function getMimeType( $path ) {
 		return(\OC_Helper::getMimeType( $path ));
 	}
 
-
 	/**
 	 * copy the contents of one stream to another
 	 * @param resource source
 	 * @param resource target
 	 * @return int the number of bytes copied
 	 */
-	public static function streamCopy( $source, $target ){
+	public static function streamCopy( $source, $target ) {
 		return(\OC_Helper::streamCopy( $source, $target ));
 	}
 
-
 	/**
 	 * create a temporary file with an unique filename
 	 * @param string postfix
@@ -75,22 +70,20 @@ class Files {
 	 *
 	 * temporary files are automatically cleaned up after the script is finished
 	 */
-	public static function tmpFile( $postfix='' ){
+	public static function tmpFile( $postfix='' ) {
 		return(\OC_Helper::tmpFile( $postfix ));
 	}
 
-
 	/**
 	 * create a temporary folder with an unique filename
 	 * @return string
 	 *
 	 * temporary files are automatically cleaned up after the script is finished
 	 */
-	public static function tmpFolder(){
+	public static function tmpFolder() {
 		return(\OC_Helper::tmpFolder());
 	}
 
-
 	/**
 	 * Adds a suffix to the name in case the file exists
 	 *
@@ -98,20 +91,16 @@ class Files {
 	 * @param $filename
 	 * @return string
 	 */
-	public static function buildNotExistingFileName( $path, $filename ){
+	public static function buildNotExistingFileName( $path, $filename ) {
 		return(\OC_Helper::buildNotExistingFileName( $path, $filename ));
 	}
 
-        /**
-         * @param string appid
-         * @param $app app
-         * @return OC_FilesystemView
-         */
-        public static function getStorage( $app ){
+	/**
+	 * @param string appid
+	 * @param $app app
+	 * @return OC_FilesystemView
+	 */
+	public static function getStorage( $app ) {
 		return \OC_App::getStorage( $app );
 	}
-
-
-
-
 }
diff --git a/lib/public/json.php b/lib/public/json.php
index 99df79173eb..2186dd8ee49 100644
--- a/lib/public/json.php
+++ b/lib/public/json.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,92 +34,91 @@ namespace OCP;
  * This class provides convinient functions to generate and send JSON data. Usefull for Ajax calls
  */
 class JSON {
-
 	/**
 	* @brief Encode and print $data in JSON format
 	* @param array $data The data to use
 	* @param string $setContentType the optional content type
 	* @return string json formatted string.
 	*/
-	public static function encodedPrint( $data, $setContentType=true ){
+	public static function encodedPrint( $data, $setContentType=true ) {
 		return(\OC_JSON::encodedPrint( $data, $setContentType ));
 	}
 
 	/**
 	* Check if the user is logged in, send json error msg if not.
-	* 
+	*
 	* This method checks if a user is logged in. If not, a json error
 	* response will be return and the method will exit from execution
 	* of the script.
 	* The returned json will be in the format:
-	* 
+	*
 	*     {"status":"error","data":{"message":"Authentication error."}}
-	* 
+	*
 	* Add this call to the start of all ajax method files that requires
 	* an authenticated user.
-	* 
+	*
 	* @return string json formatted error string if not authenticated.
 	*/
-	public static function checkLoggedIn(){
+	public static function checkLoggedIn() {
 		return(\OC_JSON::checkLoggedIn());
 	}
 
 	/**
 	* Check an ajax get/post call if the request token is valid.
-	* 
+	*
 	* This method checks for a valid variable 'requesttoken' in $_GET,
 	* $_POST and $_SERVER. If a valid token is not found, a json error
 	* response will be return and the method will exit from execution
 	* of the script.
 	* The returned json will be in the format:
-	* 
+	*
 	*     {"status":"error","data":{"message":"Token expired. Please reload page."}}
-	* 
-	* Add this call to the start of all ajax method files that creates, 
+	*
+	* Add this call to the start of all ajax method files that creates,
 	* updates or deletes anything.
 	* In cases where you e.g. use an ajax call to load a dialog containing
 	* a submittable form, you will need to add the requesttoken first as a
 	* parameter to the ajax call, then assign it to the template and finally
 	* add a hidden input field also named 'requesttoken' containing the value.
-	* 
+	*
 	* @return string json formatted error string if not valid.
 	*/
-	public static function callCheck(){
+	public static function callCheck() {
 		return(\OC_JSON::callCheck());
 	}
 
 	/**
 	* Send json success msg
-	* 
+	*
 	* Return a json success message with optional extra data.
-	* @see OCP\JSON::error() 		for the format to use.
-	* 
+	* @see OCP\JSON::error()		for the format to use.
+	*
 	* @param array $data The data to use
 	* @return string json formatted string.
 	*/
-	public static function success( $data = array() ){
+	public static function success( $data = array() ) {
 		return(\OC_JSON::success( $data ));
 	}
 
 	/**
 	* Send json error msg
-	* 
-	* Return a json error message with optional extra data for 
+	*
+	* Return a json error message with optional extra data for
 	* error message or app specific data.
-	* 
+	*
 	* Example use:
-	* 
+	*
 	*     $id = [some value]
 	*     OCP\JSON::error(array('data':array('message':'An error happened', 'id': $id)));
-	* 
+	*
 	* Will return the json formatted string:
-	* 
+	*
 	*     {"status":"error","data":{"message":"An error happened", "id":[some value]}}
-	* 
+	*
 	* @param array $data The data to use
 	* @return string json formatted error string.
 	*/
-	public static function error( $data = array() ){
+	public static function error( $data = array() ) {
 		return(\OC_JSON::error( $data ));
 	}
 
@@ -128,47 +127,46 @@ class JSON {
 	* @param array $type The contwnt type header
 	* @return string json formatted string.
 	*/
-	public static function setContentTypeHeader( $type='application/json' ){
+	public static function setContentTypeHeader( $type='application/json' ) {
 		return(\OC_JSON::setContentTypeHeader( $type ));
 	}
 
 	/**
 	* Check if the App is enabled and send JSON error message instead
-	* 
+	*
 	* This method checks if a specific app is enabled. If not, a json error
 	* response will be return and the method will exit from execution
 	* of the script.
 	* The returned json will be in the format:
-	* 
+	*
 	*     {"status":"error","data":{"message":"Application is not enabled."}}
-	* 
+	*
 	* Add this call to the start of all ajax method files that requires
 	* a specific app to be enabled.
-	* 
+	*
 	* @param string $app The app to check
 	* @return string json formatted string if not enabled.
 	*/
-	public static function checkAppEnabled( $app ){
+	public static function checkAppEnabled( $app ) {
 		return(\OC_JSON::checkAppEnabled( $app ));
 	}
 
 	/**
 	* Check if the user is a admin, send json error msg if not
-	* 
+	*
 	* This method checks if the current user has admin rights. If not, a json error
 	* response will be return and the method will exit from execution
 	* of the script.
 	* The returned json will be in the format:
-	* 
+	*
 	*     {"status":"error","data":{"message":"Authentication error."}}
-	* 
+	*
 	* Add this call to the start of all ajax method files that requires
 	* administrative rights.
-	* 
+	*
 	* @return string json formatted string if not admin user.
 	*/
-	public static function checkAdminUser(){
+	public static function checkAdminUser() {
 		return(\OC_JSON::checkAdminUser());
 	}
-
 }
diff --git a/lib/public/response.php b/lib/public/response.php
index 8dff3bcd354..95e67a85720 100644
--- a/lib/public/response.php
+++ b/lib/public/response.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,8 +34,6 @@ namespace OCP;
  * This class provides convinient functions to send the correct http response headers
  */
 class Response {
-
-
 	/**
 	* @brief Enable response caching by sending correct HTTP headers
 	* @param $cache_time time to cache the response
@@ -47,7 +45,6 @@ class Response {
 		return(\OC_Response::enableCaching( $cache_time ));
 	}
 
-
 	/**
 	* Checks and set Last-Modified header, when the request matches sends a
 	* 'not modified' response
@@ -57,7 +54,6 @@ class Response {
 		return(\OC_Response::setLastModifiedHeader( $lastModified ));
 	}
 
-
 	/**
 	* @brief disable browser caching
 	* @see enableCaching with cache_time = 0
@@ -66,7 +62,6 @@ class Response {
 		return(\OC_Response::disableCaching());
 	}
 
-
 	/**
 	* Checks and set ETag header, when the request matches sends a
 	* 'not modified' response
@@ -76,7 +71,6 @@ class Response {
 		return(\OC_Response::setETagHeader( $etag ));
 	}
 
-
 	/**
 	* @brief Send file as response, checking and setting caching headers
 	* @param $filepath of file to send
@@ -102,6 +96,4 @@ class Response {
 	static public function redirect( $location ) {
 		return(\OC_Response::redirect( $location ));
 	}
-
-
-}
+}
\ No newline at end of file
diff --git a/lib/public/share.php b/lib/public/share.php
index a9fd23bfac8..b215d7f9389 100644
--- a/lib/public/share.php
+++ b/lib/public/share.php
@@ -23,6 +23,7 @@ namespace OCP;
 \OC_Hook::connect('OC_User', 'post_deleteUser', 'OCP\Share', 'post_deleteUser');
 \OC_Hook::connect('OC_User', 'post_addToGroup', 'OCP\Share', 'post_addToGroup');
 \OC_Hook::connect('OC_User', 'post_removeFromGroup', 'OCP\Share', 'post_removeFromGroup');
+\OC_Hook::connect('OC_User', 'post_deleteGroup', 'OCP\Share', 'post_deleteGroup');
 
 /**
 * This class provides the ability for apps to share their content between users.
@@ -229,6 +230,16 @@ class Share {
 			$shareWith['users'] = array_diff(\OC_Group::usersInGroup($group), array($uidOwner));
 		} else if ($shareType === self::SHARE_TYPE_LINK) {
 			if (\OC_Appconfig::getValue('core', 'shareapi_allow_links', 'yes') == 'yes') {
+				if ($checkExists = self::getItems($itemType, $itemSource, self::SHARE_TYPE_LINK, null, $uidOwner, self::FORMAT_NONE, null, 1)) {
+					// If password is set delete the old link
+					if (isset($shareWith)) {
+						self::delete($checkExists['id']);
+					} else {
+						$message = 'Sharing '.$itemSource.' failed, because this item is already shared with a link';
+						\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
+						throw new \Exception($message);
+					}
+				}
 				// Generate hash of password - same method as user passwords
 				if (isset($shareWith)) {
 					$forcePortable = (CRYPT_BLOWFISH != 1);
@@ -241,26 +252,26 @@ class Share {
 			\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
 			throw new \Exception($message);
 			return false;
-		} else if ($shareType === self::SHARE_TYPE_CONTACT) {
-			if (!\OC_App::isEnabled('contacts')) {
-				$message = 'Sharing '.$itemSource.' failed, because the contacts app is not enabled';
-				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
-				return false;
-			}
-			$vcard = \OC_Contacts_App::getContactVCard($shareWith);
-			if (!isset($vcard)) {
-				$message = 'Sharing '.$itemSource.' failed, because the contact does not exist';
-				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
-				throw new \Exception($message);
-			}
-			$details = \OC_Contacts_VCard::structureContact($vcard);
-			// TODO Add ownCloud user to contacts vcard
-			if (!isset($details['EMAIL'])) {
-				$message = 'Sharing '.$itemSource.' failed, because no email address is associated with the contact';
-				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
-				throw new \Exception($message);
-			}
-			return self::shareItem($itemType, $itemSource, self::SHARE_TYPE_EMAIL, $details['EMAIL'], $permissions);
+// 		} else if ($shareType === self::SHARE_TYPE_CONTACT) {
+// 			if (!\OC_App::isEnabled('contacts')) {
+// 				$message = 'Sharing '.$itemSource.' failed, because the contacts app is not enabled';
+// 				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
+// 				return false;
+// 			}
+// 			$vcard = \OC_Contacts_App::getContactVCard($shareWith);
+// 			if (!isset($vcard)) {
+// 				$message = 'Sharing '.$itemSource.' failed, because the contact does not exist';
+// 				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
+// 				throw new \Exception($message);
+// 			}
+// 			$details = \OC_Contacts_VCard::structureContact($vcard);
+// 			// TODO Add ownCloud user to contacts vcard
+// 			if (!isset($details['EMAIL'])) {
+// 				$message = 'Sharing '.$itemSource.' failed, because no email address is associated with the contact';
+// 				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
+// 				throw new \Exception($message);
+// 			}
+// 			return self::shareItem($itemType, $itemSource, self::SHARE_TYPE_EMAIL, $details['EMAIL'], $permissions);
 		} else {
 			// Future share types need to include their own conditions
 			$message = 'Share type '.$shareType.' is not valid for '.$itemSource;
@@ -326,10 +337,21 @@ class Share {
 	public static function unshareFromSelf($itemType, $itemTarget) {
 		if ($item = self::getItemSharedWith($itemType, $itemTarget)) {
 			if ((int)$item['share_type'] === self::SHARE_TYPE_GROUP) {
-				// TODO
+				// Insert an extra row for the group share and set permission to 0 to prevent it from showing up for the user
+				$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`, `parent`, `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`, `file_target`) VALUES (?,?,?,?,?,?,?,?,?,?,?)');
+				$query->execute(array($item['item_type'], $item['item_source'], $item['item_target'], $item['id'], self::$shareTypeGroupUserUnique, \OC_User::getUser(), $item['uid_owner'], 0, $item['stime'], $item['file_source'], $item['file_target']));
+				\OC_DB::insertid('*PREFIX*share');
+				// Delete all reshares by this user of the group share
+				self::delete($item['id'], true, \OC_User::getUser());
+			} else if ((int)$item['share_type'] === self::$shareTypeGroupUserUnique) {
+				// Set permission to 0 to prevent it from showing up for the user
+				$query = \OC_DB::prepare('UPDATE `*PREFIX*share` SET `permissions` = ? WHERE `id` = ?');
+				$query->execute(array(0, $item['id']));
+				self::delete($item['id'], true);
+			} else {
+				self::delete($item['id']);
 			}
-			// Delete
-			return self::delete($item['id'], true);
+			return true;
 		}
 		return false;
 	}
@@ -347,7 +369,7 @@ class Share {
 		if ($item = self::getItems($itemType, $itemSource, $shareType, $shareWith, \OC_User::getUser(), self::FORMAT_NONE, null, 1, false)) {
 			// Check if this item is a reshare and verify that the permissions granted don't exceed the parent shared item
 			if (isset($item['parent'])) {
-				$query = \OC_DB::prepare('SELECT `permissions` FROM `*PREFIX*share` WHERE `id` = ?',1);
+				$query = \OC_DB::prepare('SELECT `permissions` FROM `*PREFIX*share` WHERE `id` = ?', 1);
 				$result = $query->execute(array($item['parent']))->fetchRow();
 				if (~(int)$result['permissions'] & $permissions) {
 					$message = 'Setting permissions for '.$itemSource.' failed, because the permissions exceed permissions granted to '.\OC_User::getUser();
@@ -446,8 +468,11 @@ class Share {
 				$collectionTypes[] = $type;
 			}
 		}
-		if (count($collectionTypes) > 1) {
+		if (!self::getBackend($itemType) instanceof Share_Backend_Collection) {
 			unset($collectionTypes[0]);
+		}
+		// Return array if collections were found or the item type is a collection itself - collections can be inside collections
+		if (count($collectionTypes) > 0) {
 			return $collectionTypes;
 		}
 		return false;
@@ -492,9 +517,13 @@ class Share {
 			$root = '';
 			if ($includeCollections && !isset($item) && ($collectionTypes = self::getCollectionItemTypes($itemType))) {
 				// If includeCollections is true, find collections of this item type, e.g. a music album contains songs
-				$itemTypes = array_merge(array($itemType), $collectionTypes);
+				if (!in_array($itemType, $collectionTypes)) {
+					$itemTypes = array_merge(array($itemType), $collectionTypes);
+				} else {
+					$itemTypes = $collectionTypes;
+				}
 				$placeholders = join(',', array_fill(0, count($itemTypes), '?'));
-				$where = ' WHERE `item_type` IN ('.$placeholders.')';
+				$where .= ' WHERE item_type IN ('.$placeholders.'))';
 				$queryArgs = $itemTypes;
 			} else {
 				$where = ' WHERE `item_type` = ?';
@@ -563,12 +592,13 @@ class Share {
 			} else {
 				if ($itemType == 'file' || $itemType == 'folder') {
 					$where .= ' `file_target` = ?';
+					$item = \OC_Filesystem::normalizePath($item);
 				} else {
 					$where .= ' `item_target` = ?';
 				}
 			}
 			$queryArgs[] = $item;
-			if ($includeCollections && $collectionTypes = self::getCollectionItemTypes($itemType)) {
+			if ($includeCollections && $collectionTypes) {
 				$placeholders = join(',', array_fill(0, count($collectionTypes), '?'));
 				$where .= ' OR item_type IN ('.$placeholders.'))';
 				$queryArgs = array_merge($queryArgs, $collectionTypes);
@@ -627,6 +657,9 @@ class Share {
 				$row['share_with'] = $items[$row['parent']]['share_with'];
 				// Remove the parent group share
 				unset($items[$row['parent']]);
+				if ($row['permissions'] == 0) {
+					continue;
+				}
 			} else if (!isset($uidOwner)) {
 				// Check if the same target already exists
 				if (isset($targets[$row[$column]])) {
@@ -681,29 +714,54 @@ class Share {
 					}
 				}
 				// Check if this is a collection of the requested item type
-				if ($includeCollections && $row['item_type'] != $itemType) {
+				if ($includeCollections && $collectionTypes && in_array($row['item_type'], $collectionTypes)) {
 					if (($collectionBackend = self::getBackend($row['item_type'])) && $collectionBackend instanceof Share_Backend_Collection) {
-						$row['collection'] = array('item_type' => $itemType, $column => $row[$column]);
-						// Fetch all of the children sources
-						$children = $collectionBackend->getChildren($row[$column]);
-						foreach ($children as $child) {
-							$childItem = $row;
-							$childItem['item_source'] = $child;
-	// 						$childItem['item_target'] = $child['target']; TODO
-							if (isset($item)) {
-								if ($childItem[$column] == $item) {
-									// Return only the item instead of a 2-dimensional array
-									if ($limit == 1 && $format == self::FORMAT_NONE) {
-										return $childItem;
+						// Collections can be inside collections, check if the item is a collection
+						if (isset($item) && $row['item_type'] == $itemType && $row[$column] == $item) {
+							$collectionItems[] = $row;
+						} else {
+							$collection = array();
+							$collection['item_type'] = $row['item_type'];
+							if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
+								$collection['path'] = basename($row['path']);
+							}
+							$row['collection'] = $collection;
+							// Fetch all of the children sources
+							$children = $collectionBackend->getChildren($row[$column]);
+							foreach ($children as $child) {
+								$childItem = $row;
+								$childItem['item_type'] = $itemType;
+								if ($row['item_type'] != 'file' && $row['item_type'] != 'folder') {
+									$childItem['item_source'] = $child['source'];
+									$childItem['item_target'] = $child['target'];
+								}
+								if ($backend instanceof Share_Backend_File_Dependent) {
+									if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
+										$childItem['file_source'] = $child['source'];
 									} else {
-										// Unset the items array and break out of both loops
-										$items = array();
-										$items[] = $childItem;
-										break 2;
+										$childItem['file_source'] = \OC_FileCache::getId($child['file_path']);
 									}
+									$childItem['file_target'] = \OC_Filesystem::normalizePath($child['file_path']);
+								}
+								if (isset($item)) {
+									if ($childItem[$column] == $item) {
+										// Return only the item instead of a 2-dimensional array
+										if ($limit == 1) {
+											if ($format == self::FORMAT_NONE) {
+												return $childItem;
+											} else {
+												// Unset the items array and break out of both loops
+												$items = array();
+												$items[] = $childItem;
+												break 2;
+											}
+										} else {
+											$collectionItems[] = $childItem;
+										}
+									}
+								} else {
+									$collectionItems[] = $childItem;
 								}
-							} else {
-								$collectionItems[] = $childItem;
 							}
 						}
 					}
@@ -769,9 +827,9 @@ class Share {
 					// TODO Don't check if inside folder
 					$parent = $checkReshare['id'];
 					$itemSource = $checkReshare['item_source'];
-					// TODO Suggest item/file target
-					$suggestedItemTarget = $checkReshare['item_target'];
 					$fileSource = $checkReshare['file_source'];
+					$suggestedItemTarget = $checkReshare['item_target'];
+					$suggestedFileTarget = $checkReshare['file_target'];
 					$filePath = $checkReshare['file_target'];
 				}
 			} else {
@@ -781,6 +839,8 @@ class Share {
 			}
 		} else {
 			$parent = null;
+			$suggestedItemTarget = null;
+			$suggestedFileTarget = null;
 			if (!$backend->isValidSource($itemSource, $uidOwner)) {
 				$message = 'Sharing '.$itemSource.' failed, because the sharing backend for '.$itemType.' could not find its source';
 				\OC_Log::write('OCP\Share', $message, \OC_Log::ERROR);
@@ -789,7 +849,7 @@ class Share {
 			$parent = null;
 			if ($backend instanceof Share_Backend_File_Dependent) {
 				$filePath = $backend->getFilePath($itemSource, $uidOwner);
-				if ($itemType == 'file' && $itemType == 'folder') {
+				if ($itemType == 'file' || $itemType == 'folder') {
 					$fileSource = $itemSource;
 				} else {
 					$fileSource = \OC_FileCache::getId($filePath);
@@ -807,35 +867,34 @@ class Share {
 		$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`, `parent`, `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`, `file_target`) VALUES (?,?,?,?,?,?,?,?,?,?,?)');
 		// Share with a group
 		if ($shareType == self::SHARE_TYPE_GROUP) {
+			$groupItemTarget = self::generateTarget($itemType, $itemSource, $shareType, $shareWith['group'], $uidOwner, $suggestedItemTarget);
 			if (isset($fileSource)) {
 				if ($parentFolder) {
 					if ($parentFolder === true) {
-						$groupFileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith['group'], $uidOwner);
+						$groupFileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith['group'], $uidOwner, $suggestedFileTarget);
 						// Set group default file target for future use
 						$parentFolders[0]['folder'] = $groupFileTarget;
 					} else {
 						// Get group default file target
 						$groupFileTarget = $parentFolder[0]['folder'].$itemSource;
 						$parent = $parentFolder[0]['id'];
-						unset($parentFolder[0]);
-						// Only loop through users we know have different file target paths
-						$uidSharedWith = array_keys($parentFolder);
 					}
 				} else {
-					$groupFileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith['group'], $uidOwner);
+					$groupFileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith['group'], $uidOwner, $suggestedFileTarget);
 				}
 			} else {
 				$groupFileTarget = null;
 			}
-			$groupItemTarget = self::generateTarget($itemType, $itemSource, $shareType, $shareWith['group'], $uidOwner);
-			$uniqueTargets = array();
+			$query->execute(array($itemType, $itemSource, $groupItemTarget, $parent, $shareType, $shareWith['group'], $uidOwner, $permissions, time(), $fileSource, $groupFileTarget));
+			// Save this id, any extra rows for this group share will need to reference it
+			$parent = \OC_DB::insertid('*PREFIX*share');
 			// Loop through all users of this group in case we need to add an extra row
 			foreach ($shareWith['users'] as $uid) {
-				$itemTarget = self::generateTarget($itemType, $itemSource, self::SHARE_TYPE_USER, $uid, $uidOwner);
+				$itemTarget = self::generateTarget($itemType, $itemSource, self::SHARE_TYPE_USER, $uid, $uidOwner, $suggestedItemTarget, $parent);
 				if (isset($fileSource)) {
 					if ($parentFolder) {
 						if ($parentFolder === true) {
-							$fileTarget = self::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $uid, $uidOwner);
+							$fileTarget = self::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $uid, $uidOwner, $suggestedFileTarget, $parent);
 							if ($fileTarget != $groupFileTarget) {
 								$parentFolders[$uid]['folder'] = $fileTarget;
 							}
@@ -844,24 +903,15 @@ class Share {
 							$parent = $parentFolder[$uid]['id'];
 						}
 					} else {
-						$fileTarget = self::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $uid, $uidOwner);
+						$fileTarget = self::generateTarget('file', $filePath, self::SHARE_TYPE_USER, $uid, $uidOwner, $suggestedFileTarget, $parent);
 					}
 				} else {
 					$fileTarget = null;
 				}
 				// Insert an extra row for the group share if the item or file target is unique for this user
 				if ($itemTarget != $groupItemTarget || (isset($fileSource) && $fileTarget != $groupFileTarget)) {
-					$uniqueTargets[] = array('uid' => $uid, 'item_target' => $itemTarget, 'file_target' => $fileTarget);
-				}
-			}
-			$query->execute(array($itemType, $itemSource, $groupItemTarget, $parent, $shareType, $shareWith['group'], $uidOwner, $permissions, time(), $fileSource, $groupFileTarget));
-			// Save this id, any extra rows for this group share will need to reference it
-			$parent = \OC_DB::insertid('*PREFIX*share');
-			foreach ($uniqueTargets as $unique) {
-				$query->execute(array($itemType, $itemSource, $unique['item_target'], $parent, self::$shareTypeGroupUserUnique, $unique['uid'], $uidOwner, $permissions, time(), $fileSource, $unique['file_target']));
-				$id = \OC_DB::insertid('*PREFIX*share');
-				if ($parentFolder === true) {
-					$parentFolders['id'] = $id;
+					$query->execute(array($itemType, $itemSource, $itemTarget, $parent, self::$shareTypeGroupUserUnique, $uid, $uidOwner, $permissions, time(), $fileSource, $fileTarget));
+					\OC_DB::insertid('*PREFIX*share');
 				}
 			}
 			if ($parentFolder === true) {
@@ -869,18 +919,18 @@ class Share {
 				return $parentFolders;
 			}
 		} else {
-			$itemTarget = self::generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner);
+			$itemTarget = self::generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $suggestedItemTarget);
 			if (isset($fileSource)) {
 				if ($parentFolder) {
 					if ($parentFolder === true) {
-						$fileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith, $uidOwner);
+						$fileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith, $uidOwner, $suggestedFileTarget);
 						$parentFolders['folder'] = $fileTarget;
 					} else {
 						$fileTarget = $parentFolder['folder'].$itemSource;
 						$parent = $parentFolder['id'];
 					}
 				} else {
-					$fileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith, $uidOwner);
+					$fileTarget = self::generateTarget('file', $filePath, $shareType, $shareWith, $uidOwner, $suggestedFileTarget);
 				}
 			} else {
 				$fileTarget = null;
@@ -902,14 +952,16 @@ class Share {
 	* @param string Item source
 	* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, or SHARE_TYPE_LINK
 	* @param string User or group the item is being shared with
+	* @param string The suggested target originating from a reshare (optional)
+	* @param int The id of the parent group share (optional)
 	* @return string Item target
-	*
-	* TODO Use a suggested item target by default
-	*
 	*/
-	private static function generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner) {
+	private static function generateTarget($itemType, $itemSource, $shareType, $shareWith, $uidOwner, $suggestedTarget = null, $groupParent = null) {
 		$backend = self::getBackend($itemType);
 		if ($shareType == self::SHARE_TYPE_LINK) {
+			if (isset($suggestedTarget)) {
+				return $suggestedTarget;
+			}
 			return $backend->generateTarget($itemSource, false);
 		} else {
 			if ($itemType == 'file' || $itemType == 'folder') {
@@ -927,19 +979,35 @@ class Share {
 			$exclude = null;
 			// Backend has 3 opportunities to generate a unique target
 			for ($i = 0; $i < 2; $i++) {
-				if ($shareType == self::SHARE_TYPE_GROUP) {
-					$target = $backend->generateTarget($itemSource, false, $exclude);
+				// Check if suggested target exists first
+				if ($i == 0 && isset($suggestedTarget)) {
+					$target = $suggestedTarget;
 				} else {
-					$target = $backend->generateTarget($itemSource, $shareWith, $exclude);
-				}
-				if (is_array($exclude) && in_array($target, $exclude)) {
-					break;
+					if ($shareType == self::SHARE_TYPE_GROUP) {
+						$target = $backend->generateTarget($itemSource, false, $exclude);
+					} else {
+						$target = $backend->generateTarget($itemSource, $shareWith, $exclude);
+					}
+					if (is_array($exclude) && in_array($target, $exclude)) {
+						break;
+					}
 				}
 				// Check if target already exists
-				if ($checkTarget = self::getItems($itemType, $target, $shareType, $shareWith, null, self::FORMAT_NONE, null, 1)) {
-					// If matching target is from the same owner, use the same target. The share type will be different so this isn't the same share.
-					if ($checkTarget['uid_owner'] == $uidOwner) {
-						return $target;
+				$checkTarget = self::getItems($itemType, $target, $shareType, $shareWith);
+				if (!empty($checkTarget)) {
+					foreach ($checkTarget as $item) {
+						// Skip item if it is the group parent row
+						if (isset($groupParent) && $item['id'] == $groupParent) {
+							if (count($checkTarget) == 1) {
+								return $target;
+							} else {
+								continue;
+							}
+						}
+						// If matching target is from the same owner, use the same target. The share type will be different so this isn't the same share.
+						if ($item['uid_owner'] == $uidOwner) {
+							return $target;
+						}
 					}
 					if (!isset($exclude)) {
 						$exclude = array();
@@ -1030,7 +1098,27 @@ class Share {
 	}
 
 	public static function post_addToGroup($arguments) {
-		// TODO
+		// Find the group shares and check if the user needs a unique target
+		$query = \OC_DB::prepare('SELECT * FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?');
+		$result = $query->execute(array(self::SHARE_TYPE_GROUP, $arguments['gid']));
+		$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`, `parent`, `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`, `file_target`) VALUES (?,?,?,?,?,?,?,?,?,?,?)');
+		while ($item = $result->fetchRow()) {
+			if ($item['item_type'] == 'file' || $item['item_type'] == 'file') {
+				$itemTarget = null;
+			} else {
+				$itemTarget = self::generateTarget($item['item_type'], $item['item_source'], self::SHARE_TYPE_USER, $arguments['uid'], $item['uid_owner'], $item['item_target'], $item['id']);
+			}
+			if (isset($item['file_source'])) {
+				$fileTarget = self::generateTarget($item['item_type'], $item['item_source'], self::SHARE_TYPE_USER, $arguments['uid'], $item['uid_owner'], $item['file_target'], $item['id']);
+			} else {
+				$fileTarget = null;
+			}
+			// Insert an extra row for the group share if the item or file target is unique for this user
+			if ($itemTarget != $item['item_target'] || $fileTarget != $item['file_target']) {
+				$query->execute(array($item['item_type'], $item['item_source'], $itemTarget, $item['id'], self::$shareTypeGroupUserUnique, $arguments['uid'], $item['uid_owner'], $item['permissions'], $item['stime'], $item['file_source'], $fileTarget));
+				\OC_DB::insertid('*PREFIX*share');
+			}
+		}
 	}
 
 	public static function post_removeFromGroup($arguments) {
@@ -1047,6 +1135,14 @@ class Share {
 		}
 	}
 
+	public static function post_deleteGroup($arguments) {
+		$query = \OC_DB::prepare('SELECT id FROM `*PREFIX*share` WHERE `share_type` = ? AND `share_with` = ?');
+		$result = $query->execute(array(self::SHARE_TYPE_GROUP, $arguments['gid']));
+		while ($item = $result->fetchRow()) {
+			self::delete($item['id']);
+		}
+	}
+
 }
 
 /**
@@ -1121,10 +1217,8 @@ interface Share_Backend_Collection extends Share_Backend {
 	/**
 	* @brief Get the sources of the children of the item
 	* @param string Item source
-	* @return array Returns an array of sources
+	* @return array Returns an array of children each inside an array with the keys: source, target, and file_path if applicable
 	*/
 	public function getChildren($itemSource);
 
 }
-
-?>
diff --git a/lib/public/template.php b/lib/public/template.php
index a0ed618cb2c..4cda3650866 100644
--- a/lib/public/template.php
+++ b/lib/public/template.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -39,7 +39,7 @@ namespace OCP;
  *
  * For further information have a look at OC_Helper::imagePath
  */
-function image_path( $app, $image ){
+function image_path( $app, $image ) {
 	return(\image_path( $app, $image ));
 }
 
@@ -50,7 +50,7 @@ function image_path( $app, $image ){
  * @param $mimetype mimetype
  * @returns link to the image
  */
-function mimetype_icon( $mimetype ){
+function mimetype_icon( $mimetype ) {
 	return(\mimetype_icon( $mimetype ));
 }
 
@@ -61,7 +61,7 @@ function mimetype_icon( $mimetype ){
  * @param $bytes size in bytes
  * @returns size as string
  */
-function human_file_size( $bytes ){
+function human_file_size( $bytes ) {
 	return(\human_file_size( $bytes ));
 }
 
@@ -88,13 +88,13 @@ function simple_file_size($bytes) {
 
 /**
  * @brief Generate html code for an options block.
- * @param $options the options 
- * @param $selected which one is selected? 
- * @param $params the parameters 
+ * @param $options the options
+ * @param $selected which one is selected?
+ * @param $params the parameters
  * @returns html options
  */
 function html_select_options($options, $selected, $params=array()) {
-	return(\html_select_options($options, $selected, $params)); 
+	return(\html_select_options($options, $selected, $params));
 }
 
 
diff --git a/lib/public/user.php b/lib/public/user.php
index 2fa599488a7..b320ce8ea0c 100644
--- a/lib/public/user.php
+++ b/lib/public/user.php
@@ -26,7 +26,7 @@
  *
  */
 
-// use OCP namespace for all classes that are considered public. 
+// use OCP namespace for all classes that are considered public.
 // This means that they should be used by apps instead of the internal ownCloud classes
 namespace OCP;
 
@@ -34,60 +34,53 @@ namespace OCP;
  * This class provides access to the user management. You can get information about the currently logged in user and the permissions for example
  */
 class User {
-
-
 	/**
 	 * @brief get the user id of the user currently logged in.
 	 * @return string uid or false
 	 */
-	public static function getUser(){
+	public static function getUser() {
 		return \OC_USER::getUser();
 	}
 
-
 	/**
 	 * @brief Get a list of all users
 	 * @returns array with all uids
 	 *
 	 * Get a list of all users.
 	 */
-	public static function getUsers($search = '', $limit = -1, $offset = 0) {
+	public static function getUsers($search = '', $limit = null, $offset = null) {
 		return \OC_USER::getUsers();
 	}
 
-
 	/**
 	 * @brief Check if the user is logged in
 	 * @returns true/false
 	 *
 	 * Checks if the user is logged in
 	 */
-	public static function isLoggedIn(){
+	public static function isLoggedIn() {
 		return \OC_USER::isLoggedIn();
 	}
 
-
 	/**
 	 * @brief check if a user exists
 	 * @param string $uid the username
 	 * @return boolean
 	 */
-	public static function userExists( $uid ){
+	public static function userExists( $uid ) {
 		return \OC_USER::userExists( $uid );
 	}
 
-
 	/**
 	 * @brief Loggs the user out including all the session data
 	 * @returns true
 	 *
 	 * Logout, destroys session
 	 */
-	public static function logout(){
+	public static function logout() {
 		return \OC_USER::logout();
 	}
 
-
 	/**
 	 * @brief Check if the password is correct
 	 * @param $uid The username
@@ -96,27 +89,22 @@ class User {
 	 *
 	 * Check if the password is correct without logging in the user
 	 */
-	public static function checkPassword( $uid, $password ){
+	public static function checkPassword( $uid, $password ) {
 		return \OC_USER::checkPassword( $uid, $password );
 	}
 
+	/**
+	* Check if the user is a admin, redirects to home if not
+	*/
+	public static function checkAdminUser() {
+		\OC_Util::checkAdminUser();
+	}
 
-        /**
-        * Check if the user is a admin, redirects to home if not
-        */
-        public static function checkAdminUser(){
-                \OC_Util::checkAdminUser();
-        }
-
-
-        /**
-        * Check if the user is logged in, redirects to home if not. With
-        * redirect URL parameter to the request URI.
-        */
-        public static function checkLoggedIn(){
-                \OC_Util::checkLoggedIn();
-        }
-
-
-
+	/**
+	* Check if the user is logged in, redirects to home if not. With
+	* redirect URL parameter to the request URI.
+	*/
+	public static function checkLoggedIn() {
+		\OC_Util::checkLoggedIn();
+	}
 }
diff --git a/lib/public/util.php b/lib/public/util.php
index 8d7303bf7a4..747448e62eb 100644
--- a/lib/public/util.php
+++ b/lib/public/util.php
@@ -34,8 +34,6 @@ namespace OCP;
  * This class provides different helper functions to make the life of a developer easier
  */
 class Util {
-
-
 	// consts for Logging
 	const DEBUG=0;
 	const INFO=1;
@@ -43,16 +41,14 @@ class Util {
 	const ERROR=3;
 	const FATAL=4;
 
-
 	/**
 	 * @brief get the current installed version of ownCloud
 	 * @return array
 	 */
-	public static function getVersion(){
+	public static function getVersion() {
 		return(\OC_Util::getVersion());
 	}
 
-
 	/**
 	 * @brief send an email
 	 * @param string $toaddress
@@ -68,36 +64,33 @@ class Util {
 		\OC_MAIL::send( $toaddress, $toname, $subject, $mailtext, $fromaddress, $fromname, $html=0, $altbody='', $ccaddress='', $ccname='', $bcc='');
 	}
 
-
-        /**
+	/**
 	 * @brief write a message in the log
 	 * @param string $app
 	 * @param string $message
 	 * @param int level
-         */
-        public static function writeLog( $app, $message, $level ) {
-                // call the internal log class
-                \OC_LOG::write( $app, $message, $level );
-        }
-
+	 */
+	public static function writeLog( $app, $message, $level ) {
+		// call the internal log class
+		\OC_LOG::write( $app, $message, $level );
+	}
 
 	/**
 	 * @brief add a css file
 	 * @param url  $url
 	 */
-	public static function addStyle( $application, $file = null ){
+	public static function addStyle( $application, $file = null ) {
 		\OC_Util::addStyle( $application, $file );
-        }
-
+	}
 
 	/**
 	 * @brief add a javascript file
 	 * @param appid  $application
 	 * @param filename  $file
 	 */
-	public static function addScript( $application, $file = null ){
+	public static function addScript( $application, $file = null ) {
 		\OC_Util::addScript( $application, $file );
-        }
+	}
 
 	/**
 	 * @brief Add a custom element to the header
@@ -105,7 +98,7 @@ class Util {
 	 * @param array $attributes array of attributes for the element
 	 * @param string $text the text content for the element
 	 */
-	public static function addHeader( $tag, $attributes, $text=''){
+	public static function addHeader( $tag, $attributes, $text='') {
 		\OC_Util::addHeader( $tag, $attributes, $text );
 	}
 
@@ -114,25 +107,23 @@ class Util {
 	 * @param int timestamp $timestamp
 	 * @param bool dateOnly option to ommit time from the result
 	 */
-	public static function formatDate( $timestamp,$dateOnly=false){
+	public static function formatDate( $timestamp,$dateOnly=false) {
 		return(\OC_Util::formatDate( $timestamp,$dateOnly ));
 	}
 
-
-
 	/**
 	 * @brief Creates an absolute url
 	 * @param $app app
 	 * @param $file file
+	 * @param $args array with param=>value, will be appended to the returned url
 	 * @returns the url
 	 *
 	 * Returns a absolute url to the given app and file.
 	 */
-	public static function linkToAbsolute( $app, $file ) {
-		return(\OC_Helper::linkToAbsolute( $app, $file ));
+	public static function linkToAbsolute( $app, $file, $args = array() ) {
+		return(\OC_Helper::linkToAbsolute( $app, $file, $args ));
 	}
 
-
 	/**
 	 * @brief Creates an absolute url for remote use
 	 * @param $service id
@@ -155,17 +146,17 @@ class Util {
 		return \OC_Helper::linkToPublic($service);
 	}
 
-
 	/**
 	* @brief Creates an url
 	* @param $app app
 	* @param $file file
+	* @param $args array with param=>value, will be appended to the returned url
 	* @returns the url
 	*
 	* Returns a url to the given app and file.
 	*/
-	public static function linkTo( $app, $file ){
-		return(\OC_Helper::linkTo( $app, $file ));
+	public static function linkTo( $app, $file, $args = array() ) {
+		return(\OC_Helper::linkTo( $app, $file, $args ));
 	}
 
 	/**
@@ -197,11 +188,10 @@ class Util {
 	 *
 	 * Returns the path to the image.
 	 */
-        public static function imagePath( $app, $image ){
+	public static function imagePath( $app, $image ) {
 		return(\OC_Helper::imagePath( $app, $image ));
 	}
 
-
 	/**
 	 * @brief Make a human file size
 	 * @param $bytes file size in bytes
@@ -209,7 +199,7 @@ class Util {
 	 *
 	 * Makes 2048 to 2 kB.
 	 */
-	public static function humanFileSize( $bytes ){
+	public static function humanFileSize( $bytes ) {
 		return(\OC_Helper::humanFileSize( $bytes ));
 	}
 
@@ -222,7 +212,7 @@ class Util {
 	 *
 	 * Inspired by: http://www.php.net/manual/en/function.filesize.php#92418
 	 */
-	public static function computerFileSize( $str ){
+	public static function computerFileSize( $str ) {
 		return(\OC_Helper::computerFileSize( $str ));
 	}
 
@@ -238,11 +228,10 @@ class Util {
 	 *
 	 * TODO: write example
 	 */
-	static public function connectHook( $signalclass, $signalname, $slotclass, $slotname ){
+	static public function connectHook( $signalclass, $signalname, $slotclass, $slotname ) {
 		return(\OC_Hook::connect( $signalclass, $signalname, $slotclass, $slotname ));
 	}
 
-
 	/**
 	 * @brief emitts a signal
 	 * @param $signalclass class name of emitter
@@ -254,25 +243,23 @@ class Util {
 	 *
 	 * TODO: write example
 	 */
-	static public function emitHook( $signalclass, $signalname, $params = array()){
+	static public function emitHook( $signalclass, $signalname, $params = array()) {
 		return(\OC_Hook::emit( $signalclass, $signalname, $params ));
 	}
 
-
 	/**
- 	 * Register an get/post call. This is important to prevent CSRF attacks
+	 * Register an get/post call. This is important to prevent CSRF attacks
 	 * TODO: write example
 	 */
-	public static function callRegister(){
+	public static function callRegister() {
 		return(\OC_Util::callRegister());
 	}
 
-
 	/**
 	 * Check an ajax get/post call if the request token is valid. exit if not.
 	 * Todo: Write howto
 	 */
-	public static function callCheck(){
+	public static function callCheck() {
 		return(\OC_Util::callCheck());
 	}
 
@@ -284,7 +271,7 @@ class Util {
 	 * @param string or array of strings
 	 * @return array with sanitized strings or a single sinitized string, depends on the input parameter.
 	 */
-	public static function sanitizeHTML( $value ){
+	public static function sanitizeHTML( $value ) {
 		return(\OC_Util::sanitizeHTML($value));
 	}
 
@@ -298,7 +285,7 @@ class Util {
 	*
 	*
 	*/
-	public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8'){
+	public static function mb_array_change_key_case($input, $case = MB_CASE_LOWER, $encoding = 'UTF-8') {
 		return(\OC_Helper::mb_array_change_key_case($input, $case, $encoding));
 	}
 
diff --git a/lib/request.php b/lib/request.php
index 3fe61fbddcd..87262d98625 100644
--- a/lib/request.php
+++ b/lib/request.php
@@ -15,7 +15,7 @@ class OC_Request {
 	 * reverse proxies
 	 */
 	public static function serverHost() {
-		if(OC::$CLI){
+		if(OC::$CLI) {
 			return 'localhost';
 		}
 		if (isset($_SERVER['HTTP_X_FORWARDED_HOST'])) {
@@ -49,7 +49,7 @@ class OC_Request {
 				$proto = 'http';
 			}
 		}
-		return($proto);
+		return $proto;
 	}
 
 	/**
@@ -57,7 +57,7 @@ class OC_Request {
 	 * @returns string Path info or false when not found
 	 */
 	public static function getPathInfo() {
-		if (array_key_exists('PATH_INFO', $_SERVER)){
+		if (array_key_exists('PATH_INFO', $_SERVER)) {
 			$path_info = $_SERVER['PATH_INFO'];
 		}else{
 			$path_info = substr($_SERVER['REQUEST_URI'], strlen($_SERVER['SCRIPT_NAME']));
diff --git a/lib/response.php b/lib/response.php
index a75135c0176..49d79fda709 100644
--- a/lib/response.php
+++ b/lib/response.php
@@ -111,12 +111,13 @@ class OC_Response {
 		if (empty($etag)) {
 			return;
 		}
+		$etag = '"'.$etag.'"';
 		if (isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
 		    trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag) {
 			self::setStatus(self::STATUS_NOT_MODIFIED);
 			exit;
 		}
-		header('ETag: "'.$etag.'"');
+		header('ETag: '.$etag);
 	}
 
 	/**
diff --git a/lib/search.php b/lib/search.php
index f8a4b8e96eb..0b6ad050024 100644
--- a/lib/search.php
+++ b/lib/search.php
@@ -27,45 +27,45 @@
 class OC_Search{
 	static private $providers=array();
 	static private $registeredProviders=array();
-	
+
 	/**
 	 * remove all registered search providers
 	 */
-	public static function clearProviders(){
+	public static function clearProviders() {
 		self::$providers=array();
 		self::$registeredProviders=array();
 	}
-	
+
 	/**
 	 * register a new search provider to be used
 	 * @param string $provider class name of a OC_Search_Provider
 	 */
-	public static function registerProvider($class,$options=array()){
+	public static function registerProvider($class,$options=array()) {
 		self::$registeredProviders[]=array('class'=>$class,'options'=>$options);
 	}
-	
+
 	/**
 	 * search all provider for $query
 	 * @param string query
 	 * @return array An array of OC_Search_Result's
 	 */
-	public static function search($query){
+	public static function search($query) {
 		self::initProviders();
 		$results=array();
-		foreach(self::$providers as $provider){
+		foreach(self::$providers as $provider) {
 			$results=array_merge($results, $provider->search($query));
 		}
 		return $results;
 	}
-	
+
 	/**
 	 * create instances of all the registered search providers
 	 */
-	private static function initProviders(){
-		if(count(self::$providers)>0){
+	private static function initProviders() {
+		if(count(self::$providers)>0) {
 			return;
 		}
-		foreach(self::$registeredProviders as $provider){
+		foreach(self::$registeredProviders as $provider) {
 			$class=$provider['class'];
 			$options=$provider['options'];
 			self::$providers[]=new $class($options);
diff --git a/lib/search/provider.php b/lib/search/provider.php
index b3ee79b4770..b617b9c5d94 100644
--- a/lib/search/provider.php
+++ b/lib/search/provider.php
@@ -4,11 +4,11 @@
  */
 abstract class OC_Search_Provider {
 	private $options;
-	
-	public function __construct($options){
+
+	public function __construct($options) {
 		$this->options=$options;
 	}
-	
+
 	/**
 	 * search for $query
 	 * @param string $query
diff --git a/lib/search/provider/file.php b/lib/search/provider/file.php
index a37af495599..50e16457672 100644
--- a/lib/search/provider/file.php
+++ b/lib/search/provider/file.php
@@ -1,30 +1,30 @@
 <?php
 
 class OC_Search_Provider_File extends OC_Search_Provider{
-	function search($query){
+	function search($query) {
 		$files=OC_FileCache::search($query,true);
 		$results=array();
-		foreach($files as $fileData){
+		foreach($files as $fileData) {
 			$file=$fileData['path'];
 			$mime=$fileData['mimetype'];
-			if($mime=='httpd/unix-directory'){
-				$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'index.php' ).'?dir='.$file,'Files');
+			if($mime=='httpd/unix-directory') {
+				$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'index.php', array('dir' => $file)),'Files');
 			}else{
 				$mimeBase=$fileData['mimepart'];
-				switch($mimeBase){
+				switch($mimeBase) {
 					case 'audio':
 						break;
 					case 'text':
-						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Text');
+						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php', array('dir' => $file) ),'Text');
 						break;
 					case 'image':
-						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Images');
+						$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php', array('dir' => $file) ),'Images');
 						break;
 					default:
-						if($mime=='application/xml'){
-							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Text');
+						if($mime=='application/xml') {
+							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php', array('dir' => $file) ),'Text');
 						}else{
-							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php' ).'?file='.$file,'Files');
+							$results[]=new OC_Search_Result(basename($file),'',OC_Helper::linkTo( 'files', 'download.php', array('dir' => $file) ),'Files');
 						}
 				}
 			}
diff --git a/lib/search/result.php b/lib/search/result.php
index cd78a5cf253..63b5cfabce6 100644
--- a/lib/search/result.php
+++ b/lib/search/result.php
@@ -15,7 +15,7 @@ class OC_Search_Result{
 	 * @param string $link link for the result
 	 * @param string $type the type of result as human readable string ('File', 'Music', etc)
 	 */
-	public function __construct($name,$text,$link,$type){
+	public function __construct($name,$text,$link,$type) {
 		$this->name=$name;
 		$this->text=$text;
 		$this->link=$link;
diff --git a/lib/setup.php b/lib/setup.php
index f7e8c6950ce..c21c8be3957 100644
--- a/lib/setup.php
+++ b/lib/setup.php
@@ -9,7 +9,7 @@ $opts = array(
 	'hasSQLite' => $hasSQLite,
 	'hasMySQL' => $hasMySQL,
 	'hasPostgreSQL' => $hasPostgreSQL,
-        'hasOracle' => $hasOracle,
+	'hasOracle' => $hasOracle,
 	'directory' => $datadir,
 	'errors' => array(),
 );
@@ -18,7 +18,7 @@ if(isset($_POST['install']) AND $_POST['install']=='true') {
 	// We have to launch the installation process :
 	$e = OC_Setup::install($_POST);
 	$errors = array('errors' => $e);
-	
+
 	if(count($e) > 0) {
 		//OC_Template::printGuestPage("", "error", array("errors" => $errors));
 		$options = array_merge($_POST, $opts, $errors);
@@ -37,7 +37,7 @@ class OC_Setup {
 	public static function install($options) {
 		$error = array();
 		$dbtype = $options['dbtype'];
-		
+
 		if(empty($options['adminlogin'])) {
 			$error[] = 'Set an admin username.';
 		}
@@ -51,10 +51,10 @@ class OC_Setup {
 		if($dbtype=='mysql' or $dbtype == 'pgsql' or $dbtype == 'oci') { //mysql and postgresql needs more config options
 			if($dbtype=='mysql')
 				$dbprettyname = 'MySQL';
-                        else if($dbtype=='pgsql')
-                                $dbprettyname = 'PostgreSQL';
-                        else
-                                $dbprettyname = 'Oracle';
+			else if($dbtype=='pgsql')
+					$dbprettyname = 'PostgreSQL';
+			else
+					$dbprettyname = 'Oracle';
 
 
 			if(empty($options['dbuser'])) {
@@ -63,7 +63,7 @@ class OC_Setup {
 			if(empty($options['dbname'])) {
 				$error[] = "$dbprettyname enter the database name.";
 			}
-			if(empty($options['dbhost'])) {
+			if($dbtype != 'oci' && empty($options['dbhost'])) {
 				$error[] = "$dbprettyname set the database host.";
 			}
 		}
@@ -72,9 +72,9 @@ class OC_Setup {
 			$username = htmlspecialchars_decode($options['adminlogin']);
 			$password = htmlspecialchars_decode($options['adminpass']);
 			$datadir = htmlspecialchars_decode($options['directory']);
-			
+
 			//use sqlite3 when available, otherise sqlite2 will be used.
-			if($dbtype=='sqlite' and class_exists('SQLite3')){
+			if($dbtype=='sqlite' and class_exists('SQLite3')) {
 				$dbtype='sqlite3';
 			}
 
@@ -84,8 +84,8 @@ class OC_Setup {
 
 			//write the config file
 			OC_Config::setValue('datadirectory', $datadir);
- 			OC_Config::setValue('dbtype', $dbtype);
- 			OC_Config::setValue('version',implode('.',OC_Util::getVersion()));
+			OC_Config::setValue('dbtype', $dbtype);
+			OC_Config::setValue('version',implode('.',OC_Util::getVersion()));
 			if($dbtype == 'mysql') {
 				$dbuser = $options['dbuser'];
 				$dbpass = $options['dbpass'];
@@ -107,14 +107,14 @@ class OC_Setup {
 				}
 				else {
 					$oldUser=OC_Config::getValue('dbuser', false);
-					
+
 					$query="SELECT user FROM mysql.user WHERE user='$dbuser'"; //this should be enough to check for admin rights in mysql
 					if(mysql_query($query, $connection)) {
 						//use the admin login data for the new database user
 
 						//add prefix to the mysql user name to prevent collisions
 						$dbusername=substr('oc_'.$username,0,16);
-						if($dbusername!=$oldUser){
+						if($dbusername!=$oldUser) {
 							//hash the password so we don't need to store the admin config in the config file
 							$dbpassword=md5(time().$password);
 
@@ -128,7 +128,7 @@ class OC_Setup {
 						self::createDatabase($dbname, $dbusername, $connection);
 					}
 					else {
-						if($dbuser!=$oldUser){
+						if($dbuser!=$oldUser) {
 							OC_Config::setValue('dbuser', $dbuser);
 							OC_Config::setValue('dbpassword', $dbpass);
 						}
@@ -140,7 +140,7 @@ class OC_Setup {
 					//fill the database if needed
 					$query="select count(*) from information_schema.tables where table_schema='$dbname' AND table_name = '{$dbtableprefix}users';";
 					$result = mysql_query($query,$connection);
-					if($result){
+					if($result) {
 						$row=mysql_fetch_row($result);
 					}
 					if(!$result or $row[0]==0) {
@@ -184,9 +184,9 @@ class OC_Setup {
 						$dbusername='oc_'.$username;
 						//create a new password so we don't need to store the admin config in the config file
 						$dbpassword=md5(time());
-						
+
 						self::pg_createDBUser($dbusername, $dbpassword, $connection);
-						
+
 						OC_CONFIG::setValue('dbuser', $dbusername);
 						OC_CONFIG::setValue('dbpassword', $dbpassword);
 
@@ -232,120 +232,128 @@ class OC_Setup {
 					}
 				}
 			}
-                        elseif($dbtype == 'oci') {
-                                $dbuser = $options['dbuser'];
-                                $dbpass = $options['dbpass'];
-                                $dbname = $options['dbname'];
-                                $dbtablespace = $options['dbtablespace'];
-                                $dbhost = $options['dbhost'];
-                                $dbtableprefix = isset($options['dbtableprefix']) ? $options['dbtableprefix'] : 'oc_';
-                                OC_CONFIG::setValue('dbname', $dbname);
-                                OC_CONFIG::setValue('dbtablespace', $dbtablespace);
-                                OC_CONFIG::setValue('dbhost', $dbhost);
-                                OC_CONFIG::setValue('dbtableprefix', $dbtableprefix);
-
-                                $e_host = addslashes($dbhost);
-                                $e_dbname = addslashes($dbname);
-                                //check if the database user has admin right
-                                $connection_string = '//'.$e_host.'/'.$e_dbname;
-                                $connection = @oci_connect($dbuser, $dbpass, $connection_string);
-                                if(!$connection) {
-                                        $e = oci_error();
-                                        $error[] = array(
-                                                'error' => 'Oracle username and/or password not valid',
-                                                'hint' => 'You need to enter either an existing account or the administrator.'
-                                        );
-                                        return $error;
-                                } else {
-                                        //check for roles creation rights in oracle             
-
-                                        $query="SELECT count(*) FROM user_role_privs, role_sys_privs WHERE user_role_privs.granted_role = role_sys_privs.role AND privilege = 'CREATE ROLE'";
-                                        $stmt = oci_parse($connection, $query);
-                                        if (!$stmt) {
-                                                $entry='DB Error: "'.oci_last_error($connection).'"<br />';
-                                                $entry.='Offending command was: '.$query.'<br />';
-                                                echo($entry);
-                                        }
-                                        $result = oci_execute($stmt);
-                                        if($result) {
-                                                $row = oci_fetch_row($stmt);
-                                        }
-                                        if($result and $row[0] > 0) {
-                                                //use the admin login data for the new database user
-
-                                                //add prefix to the oracle user name to prevent collisions
-                                                $dbusername='oc_'.$username;
-                                                //create a new password so we don't need to store the admin config in the config file
-                                                $dbpassword=md5(time().$dbpass);
-
-                                                //oracle passwords are treated as identifiers:
-                                                //  must start with aphanumeric char
-                                                //  needs to be shortened to 30 bytes, as the two " needed to escape the identifier count towards the identifier length.
-                                                $dbpassword=substr($dbpassword, 0, 30);
-
-                                                self::oci_createDBUser($dbusername, $dbpassword, $dbtablespace, $connection);
-
-                                                OC_CONFIG::setValue('dbuser', $dbusername);
-                                                OC_CONFIG::setValue('dbname', $dbusername);
-                                                OC_CONFIG::setValue('dbpassword', $dbpassword);
-
-                                                //create the database not neccessary, oracle implies user = schema
-                                                //self::oci_createDatabase($dbname, $dbusername, $connection);
-                                        } else {
-
-                                                OC_CONFIG::setValue('dbuser', $dbuser);
-                                                OC_CONFIG::setValue('dbname', $dbname);
-                                                OC_CONFIG::setValue('dbpassword', $dbpass);
-
-                                                //create the database not neccessary, oracle implies user = schema
-                                                //self::oci_createDatabase($dbname, $dbuser, $connection);
-                                        }
-
-                                        //FIXME check tablespace exists: select * from user_tablespaces
-
-                                        // the connection to dbname=oracle is not needed anymore
-                                        oci_close($connection);
-
-                                        // connect to the oracle database (schema=$dbuser) an check if the schema needs to be filled
-                                        $dbuser = OC_CONFIG::getValue('dbuser');
-                                        //$dbname = OC_CONFIG::getValue('dbname');
-                                        $dbpass = OC_CONFIG::getValue('dbpassword');
-
-                                        $e_host = addslashes($dbhost);
-                                        $e_dbname = addslashes($dbname);
-
-                                        $connection_string = '//'.$e_host.'/'.$e_dbname;
-                                        $connection = @oci_connect($dbuser, $dbpass, $connection_string);
-                                        if(!$connection) {
-                                                $error[] = array(
-                                                        'error' => 'Oracle username and/or password not valid',
-                                                        'hint' => 'You need to enter either an existing account or the administrator.'
-                                                );
-                                                return $error;
-                                        } else {
-                                                $query = "SELECT count(*) FROM user_tables WHERE table_name = :un";
-                                                $stmt = oci_parse($connection, $query);
-                                                $un = $dbtableprefix.'users';
-                                                oci_bind_by_name($stmt, ':un', $un);
-                                                if (!$stmt) {
-                                                        $entry='DB Error: "'.oci_last_error($connection).'"<br />';
-                                                        $entry.='Offending command was: '.$query.'<br />';
-                                                        echo($entry);
-                                                }
-                                                $result = oci_execute($stmt);
-
-                                                if($result) {
-                                                        $row = oci_fetch_row($stmt);
-                                                }
-                                                if(!$result or $row[0]==0) {
-                                                        OC_DB::createDbFromStructure('db_structure.xml');
-                                                }
-                                        }
-                                }
-                        }                   
+			elseif($dbtype == 'oci') {
+				$dbuser = $options['dbuser'];
+				$dbpass = $options['dbpass'];
+				$dbname = $options['dbname'];
+				$dbtablespace = $options['dbtablespace'];
+				$dbhost = isset($options['dbhost'])?$options['dbhost']:'';
+				$dbtableprefix = isset($options['dbtableprefix']) ? $options['dbtableprefix'] : 'oc_';
+				OC_CONFIG::setValue('dbname', $dbname);
+				OC_CONFIG::setValue('dbtablespace', $dbtablespace);
+				OC_CONFIG::setValue('dbhost', $dbhost);
+				OC_CONFIG::setValue('dbtableprefix', $dbtableprefix);
+
+				$e_host = addslashes($dbhost);
+				$e_dbname = addslashes($dbname);
+				//check if the database user has admin right
+				if ($e_host == '') {
+					$easy_connect_string = $e_dbname; // use dbname as easy connect name
+				} else {
+					$easy_connect_string = '//'.$e_host.'/'.$e_dbname;
+				}
+				$connection = @oci_connect($dbuser, $dbpass, $easy_connect_string);
+				if(!$connection) {
+					$e = oci_error();
+					$error[] = array(
+						'error' => 'Oracle username and/or password not valid',
+						'hint' => 'You need to enter either an existing account or the administrator.'
+					);
+					return $error;
+				} else {
+					//check for roles creation rights in oracle
+
+					$query="SELECT count(*) FROM user_role_privs, role_sys_privs WHERE user_role_privs.granted_role = role_sys_privs.role AND privilege = 'CREATE ROLE'";
+					$stmt = oci_parse($connection, $query);
+					if (!$stmt) {
+						$entry='DB Error: "'.oci_last_error($connection).'"<br />';
+						$entry.='Offending command was: '.$query.'<br />';
+						echo($entry);
+					}
+					$result = oci_execute($stmt);
+					if($result) {
+						$row = oci_fetch_row($stmt);
+					}
+					if($result and $row[0] > 0) {
+						//use the admin login data for the new database user
+
+						//add prefix to the oracle user name to prevent collisions
+						$dbusername='oc_'.$username;
+						//create a new password so we don't need to store the admin config in the config file
+						$dbpassword=md5(time().$dbpass);
+
+						//oracle passwords are treated as identifiers:
+						//  must start with aphanumeric char
+						//  needs to be shortened to 30 bytes, as the two " needed to escape the identifier count towards the identifier length.
+						$dbpassword=substr($dbpassword, 0, 30);
+
+						self::oci_createDBUser($dbusername, $dbpassword, $dbtablespace, $connection);
+
+						OC_CONFIG::setValue('dbuser', $dbusername);
+						OC_CONFIG::setValue('dbname', $dbusername);
+						OC_CONFIG::setValue('dbpassword', $dbpassword);
+
+						//create the database not neccessary, oracle implies user = schema
+						//self::oci_createDatabase($dbname, $dbusername, $connection);
+					} else {
+
+						OC_CONFIG::setValue('dbuser', $dbuser);
+						OC_CONFIG::setValue('dbname', $dbname);
+						OC_CONFIG::setValue('dbpassword', $dbpass);
+
+						//create the database not neccessary, oracle implies user = schema
+						//self::oci_createDatabase($dbname, $dbuser, $connection);
+					}
+
+					//FIXME check tablespace exists: select * from user_tablespaces
+
+					// the connection to dbname=oracle is not needed anymore
+					oci_close($connection);
+
+					// connect to the oracle database (schema=$dbuser) an check if the schema needs to be filled
+					$dbuser = OC_CONFIG::getValue('dbuser');
+					//$dbname = OC_CONFIG::getValue('dbname');
+					$dbpass = OC_CONFIG::getValue('dbpassword');
+
+					$e_host = addslashes($dbhost);
+					$e_dbname = addslashes($dbname);
+
+					if ($e_host == '') {
+						$easy_connect_string = $e_dbname; // use dbname as easy connect name
+					} else {
+						$easy_connect_string = '//'.$e_host.'/'.$e_dbname;
+					}
+					$connection = @oci_connect($dbuser, $dbpass, $easy_connect_string);
+					if(!$connection) {
+						$error[] = array(
+							'error' => 'Oracle username and/or password not valid',
+							'hint' => 'You need to enter either an existing account or the administrator.'
+						);
+						return $error;
+					} else {
+						$query = "SELECT count(*) FROM user_tables WHERE table_name = :un";
+						$stmt = oci_parse($connection, $query);
+						$un = $dbtableprefix.'users';
+						oci_bind_by_name($stmt, ':un', $un);
+						if (!$stmt) {
+							$entry='DB Error: "'.oci_last_error($connection).'"<br />';
+							$entry.='Offending command was: '.$query.'<br />';
+							echo($entry);
+						}
+						$result = oci_execute($stmt);
+
+						if($result) {
+							$row = oci_fetch_row($stmt);
+						}
+						if(!$result or $row[0]==0) {
+							OC_DB::createDbFromStructure('db_structure.xml');
+						}
+					}
+				}
+			}
 			else {
 				//delete the old sqlite database first, might cause infinte loops otherwise
-				if(file_exists("$datadir/owncloud.db")){
+				if(file_exists("$datadir/owncloud.db")) {
 					unlink("$datadir/owncloud.db");
 				}
 				//in case of sqlite, we can always fill the database
@@ -428,7 +436,7 @@ class OC_Setup {
 			}
 		}
 		$query = "REVOKE ALL PRIVILEGES ON DATABASE \"$e_name\" FROM PUBLIC";
-		$result = pg_query($connection, $query);		
+		$result = pg_query($connection, $query);
 	}
 
 	private static function pg_createDBUser($name,$password,$connection) {
@@ -462,79 +470,79 @@ class OC_Setup {
 			}
 		}
 	}
-        /**
-         * 
-         * @param String $name
-         * @param String $password
-         * @param String $tablespace
-         * @param resource $connection
-         */
-        private static function oci_createDBUser($name, $password, $tablespace, $connection) {
-
-                $query = "SELECT * FROM all_users WHERE USERNAME = :un";
-                $stmt = oci_parse($connection, $query);
-                if (!$stmt) {
-                        $entry='DB Error: "'.oci_error($connection).'"<br />';
-                        $entry.='Offending command was: '.$query.'<br />';
-                        echo($entry);
-                }
-                oci_bind_by_name($stmt, ':un', $name);
-                $result = oci_execute($stmt);
-                if(!$result) {
-                        $entry='DB Error: "'.oci_error($connection).'"<br />';
-                        $entry.='Offending command was: '.$query.'<br />';
-                        echo($entry);
-                }
-
-                if(! oci_fetch_row($stmt)) {
-                        //user does not exists let's create it :)
-                        //password must start with alphabetic character in oracle
-                        $query = 'CREATE USER '.$name.' IDENTIFIED BY "'.$password.'" DEFAULT TABLESPACE '.$tablespace; //TODO set default tablespace
-                        $stmt = oci_parse($connection, $query);
-                        if (!$stmt) {
-                                $entry='DB Error: "'.oci_error($connection).'"<br />';
-                                $entry.='Offending command was: '.$query.'<br />';
-                                echo($entry);
-                        }
-                        //oci_bind_by_name($stmt, ':un', $name);
-                        $result = oci_execute($stmt);
-                        if(!$result) {
-                                $entry='DB Error: "'.oci_error($connection).'"<br />';
-                                $entry.='Offending command was: '.$query.', name:'.$name.', password:'.$password.'<br />';
-                                echo($entry);
-                        }
-                } else { // change password of the existing role
-                        $query = "ALTER USER :un IDENTIFIED BY :pw";
-                        $stmt = oci_parse($connection, $query);
-                        if (!$stmt) {
-                                $entry='DB Error: "'.oci_error($connection).'"<br />';
-                                $entry.='Offending command was: '.$query.'<br />';
-                                echo($entry);
-                        }
-                        oci_bind_by_name($stmt, ':un', $name);
-                        oci_bind_by_name($stmt, ':pw', $password);
-                        $result = oci_execute($stmt);
-                        if(!$result) {
-                                $entry='DB Error: "'.oci_error($connection).'"<br />';
-                                $entry.='Offending command was: '.$query.'<br />';
-                                echo($entry);
-                        }
-                }
-                // grant neccessary roles
-                $query = 'GRANT CREATE SESSION, CREATE TABLE, CREATE SEQUENCE, CREATE TRIGGER, UNLIMITED TABLESPACE TO '.$name;
-                $stmt = oci_parse($connection, $query);
-                if (!$stmt) {
-                        $entry='DB Error: "'.oci_error($connection).'"<br />';
-                        $entry.='Offending command was: '.$query.'<br />';
-                        echo($entry);
-                }
-                $result = oci_execute($stmt);
-                if(!$result) {
-                        $entry='DB Error: "'.oci_error($connection).'"<br />';
-                        $entry.='Offending command was: '.$query.', name:'.$name.', password:'.$password.'<br />';
-                        echo($entry);
-                }
-        }
+	/**
+	 *
+	 * @param String $name
+	 * @param String $password
+	 * @param String $tablespace
+	 * @param resource $connection
+	 */
+	private static function oci_createDBUser($name, $password, $tablespace, $connection) {
+
+		$query = "SELECT * FROM all_users WHERE USERNAME = :un";
+		$stmt = oci_parse($connection, $query);
+		if (!$stmt) {
+			$entry='DB Error: "'.oci_error($connection).'"<br />';
+			$entry.='Offending command was: '.$query.'<br />';
+			echo($entry);
+		}
+		oci_bind_by_name($stmt, ':un', $name);
+		$result = oci_execute($stmt);
+		if(!$result) {
+			$entry='DB Error: "'.oci_error($connection).'"<br />';
+			$entry.='Offending command was: '.$query.'<br />';
+			echo($entry);
+		}
+
+		if(! oci_fetch_row($stmt)) {
+			//user does not exists let's create it :)
+			//password must start with alphabetic character in oracle
+			$query = 'CREATE USER '.$name.' IDENTIFIED BY "'.$password.'" DEFAULT TABLESPACE '.$tablespace; //TODO set default tablespace
+			$stmt = oci_parse($connection, $query);
+			if (!$stmt) {
+				$entry='DB Error: "'.oci_error($connection).'"<br />';
+				$entry.='Offending command was: '.$query.'<br />';
+				echo($entry);
+			}
+			//oci_bind_by_name($stmt, ':un', $name);
+			$result = oci_execute($stmt);
+			if(!$result) {
+				$entry='DB Error: "'.oci_error($connection).'"<br />';
+				$entry.='Offending command was: '.$query.', name:'.$name.', password:'.$password.'<br />';
+				echo($entry);
+			}
+		} else { // change password of the existing role
+			$query = "ALTER USER :un IDENTIFIED BY :pw";
+			$stmt = oci_parse($connection, $query);
+			if (!$stmt) {
+				$entry='DB Error: "'.oci_error($connection).'"<br />';
+				$entry.='Offending command was: '.$query.'<br />';
+				echo($entry);
+			}
+			oci_bind_by_name($stmt, ':un', $name);
+			oci_bind_by_name($stmt, ':pw', $password);
+			$result = oci_execute($stmt);
+			if(!$result) {
+				$entry='DB Error: "'.oci_error($connection).'"<br />';
+				$entry.='Offending command was: '.$query.'<br />';
+				echo($entry);
+			}
+		}
+		// grant neccessary roles
+		$query = 'GRANT CREATE SESSION, CREATE TABLE, CREATE SEQUENCE, CREATE TRIGGER, UNLIMITED TABLESPACE TO '.$name;
+		$stmt = oci_parse($connection, $query);
+		if (!$stmt) {
+			$entry='DB Error: "'.oci_error($connection).'"<br />';
+			$entry.='Offending command was: '.$query.'<br />';
+			echo($entry);
+		}
+		$result = oci_execute($stmt);
+		if(!$result) {
+			$entry='DB Error: "'.oci_error($connection).'"<br />';
+			$entry.='Offending command was: '.$query.', name:'.$name.', password:'.$password.'<br />';
+			echo($entry);
+		}
+	}
 
 	/**
 	 * create .htaccess files for apache hosts
@@ -552,7 +560,7 @@ class OC_Setup {
 		$content.= "</IfModule>\n";
 		$content.= "<IfModule mod_rewrite.c>\n";
 		$content.= "RewriteEngine on\n";
- 		$content.= "RewriteRule .* - [env=HTTP_AUTHORIZATION:%{HTTP:Authorization}]\n";
+		$content.= "RewriteRule .* - [env=HTTP_AUTHORIZATION:%{HTTP:Authorization}]\n";
 		$content.= "RewriteRule ^.well-known/host-meta /public.php?service=host-meta [QSA,L]\n";
 		$content.= "RewriteRule ^.well-known/carddav /remote.php/carddav/ [R]\n";
 		$content.= "RewriteRule ^.well-known/caldav /remote.php/caldav/ [R]\n";
diff --git a/lib/streamwrappers.php b/lib/streamwrappers.php
index f502c6170bd..1e5b19a11f0 100644
--- a/lib/streamwrappers.php
+++ b/lib/streamwrappers.php
@@ -5,17 +5,17 @@ class OC_FakeDirStream{
 	private $name;
 	private $index;
 
-	public function dir_opendir($path,$options){
+	public function dir_opendir($path,$options) {
 		$this->name=substr($path,strlen('fakedir://'));
 		$this->index=0;
-		if(!isset(self::$dirs[$this->name])){
+		if(!isset(self::$dirs[$this->name])) {
 			self::$dirs[$this->name]=array();
 		}
 		return true;
 	}
 
-	public function dir_readdir(){
-		if($this->index>=count(self::$dirs[$this->name])){
+	public function dir_readdir() {
+		if($this->index>=count(self::$dirs[$this->name])) {
 			return false;
 		}
 		$filename=self::$dirs[$this->name][$this->index];
@@ -222,35 +222,35 @@ class OC_CloseStreamWrapper{
 	private $path='';
 	private $source;
 	private static $open=array();
-	public function stream_open($path, $mode, $options, &$opened_path){
+	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)){
+		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, $whence=SEEK_SET){
+	public function stream_seek($offset, $whence=SEEK_SET) {
 		fseek($this->source,$offset,$whence);
 	}
 
-	public function stream_tell(){
+	public function stream_tell() {
 		return ftell($this->source);
 	}
 
-	public function stream_read($count){
+	public function stream_read($count) {
 		return fread($this->source,$count);
 	}
 
-	public function stream_write($data){
+	public function stream_write($data) {
 		return fwrite($this->source,$data);
 	}
 
-	public function stream_set_option($option,$arg1,$arg2){
-		switch($option){
+	public function stream_set_option($option,$arg1,$arg2) {
+		switch($option) {
 			case STREAM_OPTION_BLOCKING:
 				stream_set_blocking($this->source,$arg1);
 				break;
@@ -262,39 +262,39 @@ class OC_CloseStreamWrapper{
 		}
 	}
 
-	public function stream_stat(){
+	public function stream_stat() {
 		return fstat($this->source);
 	}
 
-	public function stream_lock($mode){
+	public function stream_lock($mode) {
 		flock($this->source,$mode);
 	}
 
-	public function stream_flush(){
+	public function stream_flush() {
 		return fflush($this->source);
 	}
 
-	public function stream_eof(){
+	public function stream_eof() {
 		return feof($this->source);
 	}
 
 	public function url_stat($path) {
 		$path=substr($path,strlen('close://'));
-		if(file_exists($path)){
+		if(file_exists($path)) {
 			return stat($path);
 		}else{
 			return false;
 		}
 	}
 
-	public function stream_close(){
+	public function stream_close() {
 		fclose($this->source);
-		if(isset(self::$callBacks[$this->path])){
+		if(isset(self::$callBacks[$this->path])) {
 			call_user_func(self::$callBacks[$this->path],$this->path);
 		}
 	}
 
-	public function unlink($path){
+	public function unlink($path) {
 		$path=substr($path,strlen('close://'));
 		return unlink($path);
 	}
diff --git a/lib/subadmin.php b/lib/subadmin.php
index 718fe922ffe..363e4a97cad 100644
--- a/lib/subadmin.php
+++ b/lib/subadmin.php
@@ -3,7 +3,7 @@
  * ownCloud
  *
  * @author Georg Ehrke
- * @copyright 2012 Georg Ehrke 
+ * @copyright 2012 Georg Ehrke
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
@@ -36,7 +36,7 @@ class OC_SubAdmin{
 	 * @param $gid gid of the group
 	 * @return boolean
 	 */
-	public static function createSubAdmin($uid, $gid){
+	public static function createSubAdmin($uid, $gid) {
 		$stmt = OC_DB::prepare('INSERT INTO `*PREFIX*group_admin` (`gid`,`uid`) VALUES(?,?)');
 		$result = $stmt->execute(array($gid, $uid));
 		OC_Hook::emit( "OC_SubAdmin", "post_createSubAdmin", array( "gid" => $gid ));
@@ -49,7 +49,7 @@ class OC_SubAdmin{
 	 * @param $gid gid of the group
 	 * @return boolean
 	 */
-	public static function deleteSubAdmin($uid, $gid){
+	public static function deleteSubAdmin($uid, $gid) {
 		$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `gid` = ? AND `uid` = ?');
 		$result = $stmt->execute(array($gid, $uid));
 		OC_Hook::emit( "OC_SubAdmin", "post_deleteSubAdmin", array( "gid" => $gid ));
@@ -61,11 +61,11 @@ class OC_SubAdmin{
 	 * @param $uid uid of the SubAdmin
 	 * @return array
 	 */
-	public static function getSubAdminsGroups($uid){
+	public static function getSubAdminsGroups($uid) {
 		$stmt = OC_DB::prepare('SELECT `gid` FROM `*PREFIX*group_admin` WHERE `uid` = ?');
 		$result = $stmt->execute(array($uid));
 		$gids = array();
-		while($row = $result->fetchRow()){
+		while($row = $result->fetchRow()) {
 			$gids[] = $row['gid'];
 		}
 		return $gids;
@@ -76,96 +76,96 @@ class OC_SubAdmin{
 	 * @param $gid gid of the group
 	 * @return array
 	 */
-	public static function getGroupsSubAdmins($gid){
+	public static function getGroupsSubAdmins($gid) {
 		$stmt = OC_DB::prepare('SELECT `uid` FROM `*PREFIX*group_admin` WHERE `gid` = ?');
 		$result = $stmt->execute(array($gid));
 		$uids = array();
-		while($row = $result->fetchRow()){
+		while($row = $result->fetchRow()) {
 			$uids[] = $row['uid'];
 		}
 		return $uids;
 	}
-	
+
 	/**
 	 * @brief get all SubAdmins
 	 * @return array
 	 */
-	public static function getAllSubAdmins(){
+	public static function getAllSubAdmins() {
 		$stmt = OC_DB::prepare('SELECT * FROM `*PREFIX*group_admin`');
 		$result = $stmt->execute();
 		$subadmins = array();
-		while($row = $result->fetchRow()){
+		while($row = $result->fetchRow()) {
 			$subadmins[] = $row;
 		}
 		return $subadmins;
 	}
-	
+
 	/**
 	 * @brief checks if a user is a SubAdmin of a group
 	 * @param $uid uid of the subadmin
 	 * @param $gid gid of the group
 	 * @return bool
 	 */
-	public static function isSubAdminofGroup($uid, $gid){
+	public static function isSubAdminofGroup($uid, $gid) {
 		$stmt = OC_DB::prepare('SELECT COUNT(*) AS `count` FROM `*PREFIX*group_admin` WHERE `uid` = ? AND `gid` = ?');
 		$result = $stmt->execute(array($uid, $gid));
 		$result = $result->fetchRow();
-		if($result['count'] >= 1){
+		if($result['count'] >= 1) {
 			return true;
 		}
 		return false;
 	}
-	
+
 	/**
 	 * @brief checks if a user is a SubAdmin
 	 * @param $uid uid of the subadmin
 	 * @return bool
 	 */
-	public static function isSubAdmin($uid){
+	public static function isSubAdmin($uid) {
 		$stmt = OC_DB::prepare('SELECT COUNT(*) AS `count` FROM `*PREFIX*group_admin` WHERE `uid` = ?');
 		$result = $stmt->execute(array($uid));
 		$result = $result->fetchRow();
-		if($result['count'] > 0){
+		if($result['count'] > 0) {
 			return true;
 		}
 		return false;
 	}
-	
+
 	/**
 	 * @brief checks if a user is a accessible by a subadmin
 	 * @param $subadmin uid of the subadmin
 	 * @param $user uid of the user
 	 * @return bool
 	 */
-	public static function isUserAccessible($subadmin, $user){
-		if(!self::isSubAdmin($subadmin)){
+	public static function isUserAccessible($subadmin, $user) {
+		if(!self::isSubAdmin($subadmin)) {
 			return false;
 		}
-		if(OC_Group::inGroup($user, 'admin')){
+		if(OC_Group::inGroup($user, 'admin')) {
 			return false;
 		}
 		$accessiblegroups = self::getSubAdminsGroups($subadmin);
-		foreach($accessiblegroups as $accessiblegroup){
-			if(OC_Group::inGroup($user, $accessiblegroup)){
+		foreach($accessiblegroups as $accessiblegroup) {
+			if(OC_Group::inGroup($user, $accessiblegroup)) {
 				return true;
 			}
 		}
 		return false;
 	}
-	
+
 	/*
 	 * @brief alias for self::isSubAdminofGroup()
 	 */
-	public static function isGroupAccessible($subadmin, $group){
+	public static function isGroupAccessible($subadmin, $group) {
 		return self::isSubAdminofGroup($subadmin, $group);
 	}
 
 	/**
 	 * @brief delete all SubAdmins by uid
-	 * @param $parameters 
+	 * @param $parameters
 	 * @return boolean
 	 */
-	public static function post_deleteUser($parameters){
+	public static function post_deleteUser($parameters) {
 		$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `uid` = ?');
 		$result = $stmt->execute(array($parameters['uid']));
 		return true;
@@ -176,7 +176,7 @@ class OC_SubAdmin{
 	 * @param $parameters
 	 * @return boolean
 	 */
-	public static function post_deleteGroup($parameters){
+	public static function post_deleteGroup($parameters) {
 		$stmt = OC_DB::prepare('DELETE FROM `*PREFIX*group_admin` WHERE `gid` = ?');
 		$result = $stmt->execute(array($parameters['gid']));
 		return true;
diff --git a/lib/template.php b/lib/template.php
index a10ddcd5c33..8c872a2059b 100644
--- a/lib/template.php
+++ b/lib/template.php
@@ -25,12 +25,13 @@
  * @brief make OC_Helper::linkTo available as a simple function
  * @param $app app
  * @param $file file
+ * @param $args array with param=>value, will be appended to the returned url
  * @returns link to the file
  *
  * For further information have a look at OC_Helper::linkTo
  */
-function link_to( $app, $file ){
-	return OC_Helper::linkTo( $app, $file );
+function link_to( $app, $file, $args = array() ) {
+	return OC_Helper::linkTo( $app, $file, $args );
 }
 
 /**
@@ -41,7 +42,7 @@ function link_to( $app, $file ){
  *
  * For further information have a look at OC_Helper::imagePath
  */
-function image_path( $app, $image ){
+function image_path( $app, $image ) {
 	return OC_Helper::imagePath( $app, $image );
 }
 
@@ -52,7 +53,7 @@ function image_path( $app, $image ){
  *
  * For further information have a look at OC_Helper::mimetypeIcon
  */
-function mimetype_icon( $mimetype ){
+function mimetype_icon( $mimetype ) {
 	return OC_Helper::mimetypeIcon( $mimetype );
 }
 
@@ -63,7 +64,7 @@ function mimetype_icon( $mimetype ){
  *
  * For further information have a look at OC_Helper::humanFileSize
  */
-function human_file_size( $bytes ){
+function human_file_size( $bytes ) {
 	return OC_Helper::humanFileSize( $bytes );
 }
 
@@ -76,7 +77,7 @@ function simple_file_size($bytes) {
 }
 
 function relative_modified_date($timestamp) {
-    $l=OC_L10N::get('template');
+    $l=OC_L10N::get('lib');
 	$timediff = time() - $timestamp;
 	$diffminutes = round($timediff/60);
 	$diffhours = round($diffminutes/60);
@@ -98,25 +99,25 @@ function relative_modified_date($timestamp) {
 }
 
 function html_select_options($options, $selected, $params=array()) {
-	if (!is_array($selected)){
+	if (!is_array($selected)) {
 		$selected=array($selected);
 	}
-	if (isset($params['combine']) && $params['combine']){
+	if (isset($params['combine']) && $params['combine']) {
 		$options = array_combine($options, $options);
 	}
 	$value_name = $label_name = false;
-	if (isset($params['value'])){
+	if (isset($params['value'])) {
 		$value_name = $params['value'];
 	}
-	if (isset($params['label'])){
+	if (isset($params['label'])) {
 		$label_name = $params['label'];
 	}
 	$html = '';
-	foreach($options as $value => $label){
-		if ($value_name && is_array($label)){
+	foreach($options as $value => $label) {
+		if ($value_name && is_array($label)) {
 			$value = $label[$value_name];
 		}
-		if ($label_name && is_array($label)){
+		if ($label_name && is_array($label)) {
 			$label = $label[$label_name];
 		}
 		$select = in_array($value, $selected) ? ' selected="selected"' : '';
@@ -149,7 +150,7 @@ class OC_Template{
 	 * according layout. For now, renderas can be set to "guest", "user" or
 	 * "admin".
 	 */
-	public function __construct( $app, $name, $renderas = "" ){
+	public function __construct( $app, $name, $renderas = "" ) {
 		// Set the private data
 		$this->renderas = $renderas;
 		$this->application = $app;
@@ -161,7 +162,7 @@ class OC_Template{
                 header('X-Frame-Options: Sameorigin');
                 header('X-XSS-Protection: 1; mode=block');
                 header('X-Content-Type-Options: nosniff');
- 
+
 		$this->findTemplate($name);
 	}
 
@@ -171,17 +172,17 @@ class OC_Template{
 	 * mobile -> interface for smartphones
 	 * tablet -> interface for tablets
 	 * standalone -> the default interface but without header, footer and
-	 * 	sidebar, just the application. Useful to use just a specific
-	 * 	app on the desktop in a standalone window.
+	 *	sidebar, just the application. Useful to use just a specific
+	 *	app on the desktop in a standalone window.
 	 */
-	public static function detectFormfactor(){
+	public static function detectFormfactor() {
 		// please add more useragent strings for other devices
-		if(isset($_SERVER['HTTP_USER_AGENT'])){
+		if(isset($_SERVER['HTTP_USER_AGENT'])) {
 			if(stripos($_SERVER['HTTP_USER_AGENT'],'ipad')>0) {
 				$mode='tablet';
-			}elseif(stripos($_SERVER['HTTP_USER_AGENT'],'iphone')>0){
+			}elseif(stripos($_SERVER['HTTP_USER_AGENT'],'iphone')>0) {
 				$mode='mobile';
-			}elseif((stripos($_SERVER['HTTP_USER_AGENT'],'N9')>0) and (stripos($_SERVER['HTTP_USER_AGENT'],'nokia')>0)){
+			}elseif((stripos($_SERVER['HTTP_USER_AGENT'],'N9')>0) and (stripos($_SERVER['HTTP_USER_AGENT'],'nokia')>0)) {
 				$mode='mobile';
 			}else{
 				$mode='default';
@@ -200,21 +201,21 @@ class OC_Template{
 		// if the formfactor is not yet autodetected do the
 		// autodetection now. For possible formfactors check the
 		// detectFormfactor documentation
-		if(!isset($_SESSION['formfactor'])){
+		if(!isset($_SESSION['formfactor'])) {
 			$_SESSION['formfactor'] = self::detectFormfactor();
 		}
 		// allow manual override via GET parameter
-		if(isset($_GET['formfactor'])){
+		if(isset($_GET['formfactor'])) {
 			$_SESSION['formfactor']=$_GET['formfactor'];
 		}
 		$formfactor=$_SESSION['formfactor'];
-		if($formfactor=='default') { 
+		if($formfactor=='default') {
 			$fext='';
-		}elseif($formfactor=='mobile') { 
+		}elseif($formfactor=='mobile') {
 			$fext='.mobile';
-		}elseif($formfactor=='tablet') { 
+		}elseif($formfactor=='tablet') {
 			$fext='.tablet';
-		}elseif($formfactor=='standalone') { 
+		}elseif($formfactor=='standalone') {
 			$fext='.standalone';
 		}else{
 			$fext='';
@@ -239,9 +240,9 @@ class OC_Template{
 
 		$app = $this->application;
 		// Check if it is a app template or not.
-		if( $app != "" ){
+		if( $app != "" ) {
 			// Check if the app is in the app folder or in the root
-			if( file_exists(OC_App::getAppPath($app)."/templates/" )){
+			if( file_exists(OC_App::getAppPath($app)."/templates/" )) {
 				// Check if the template is overwritten by the selected theme
 				if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/apps/$app/templates/", $name, $fext)) {
 				}elseif ($this->checkPathForTemplate(OC_App::getAppPath($app)."/templates/", $name, $fext)) {
@@ -281,9 +282,9 @@ class OC_Template{
 	{
 		if ($name =='') return false;
 		$template = null;
-		if( is_file( $path.$name.$fext.'.php' )){
+		if( is_file( $path.$name.$fext.'.php' )) {
 			$template = $path.$name.$fext.'.php';
-		}elseif( is_file( $path.$name.'.php' )){
+		}elseif( is_file( $path.$name.'.php' )) {
 			$template = $path.$name.'.php';
 		}
 		if ($template) {
@@ -306,7 +307,7 @@ class OC_Template{
 	 *
 	 * If the key existed before, it will be overwritten
 	 */
-	public function assign( $key, $value, $sanitizeHTML=true ){
+	public function assign( $key, $value, $sanitizeHTML=true ) {
 		if($sanitizeHTML == true) $value=OC_Util::sanitizeHTML($value);
 		$this->vars[$key] = $value;
 		return true;
@@ -322,8 +323,8 @@ class OC_Template{
 	 * exists, the value will be appended. It can be accessed via
 	 * $_[$key][$position] in the template.
 	 */
-	public function append( $key, $value ){
-		if( array_key_exists( $key, $this->vars )){
+	public function append( $key, $value ) {
+		if( array_key_exists( $key, $this->vars )) {
 			$this->vars[$key][] = $value;
 		}
 		else{
@@ -337,7 +338,7 @@ class OC_Template{
 	 * @param array $attributes array of attrobutes for the element
 	 * @param string $text the text content for the element
 	 */
-	public function addHeader( $tag, $attributes, $text=''){
+	public function addHeader( $tag, $attributes, $text='') {
 		$this->headers[]=array('tag'=>$tag,'attributes'=>$attributes,'text'=>$text);
 	}
 
@@ -347,9 +348,9 @@ class OC_Template{
 	 *
 	 * This function proceeds the template and prints its output.
 	 */
-	public function printPage(){
+	public function printPage() {
 		$data = $this->fetchPage();
-		if( $data === false ){
+		if( $data === false ) {
 			return false;
 		}
 		else{
@@ -365,10 +366,10 @@ class OC_Template{
 	 * This function proceeds the template. If $this->renderas is set, it
 	 * will produce a full page.
 	 */
-	public function fetchPage(){
+	public function fetchPage() {
 		$data = $this->_fetch();
 
-		if( $this->renderas ){
+		if( $this->renderas ) {
 			$page = new OC_TemplateLayout($this->renderas);
 			if($this->renderas == 'user') {
 				$page->assign('requesttoken', $this->vars['requesttoken']);
@@ -376,7 +377,7 @@ class OC_Template{
 
 			// Add custom headers
 			$page->assign('headers',$this->headers, false);
-			foreach(OC_Util::$headers as $header){
+			foreach(OC_Util::$headers as $header) {
 				$page->append('headers',$header);
 			}
 
@@ -394,7 +395,7 @@ class OC_Template{
 	 *
 	 * Includes the template file, fetches its output
 	 */
-	private function _fetch(){
+	private function _fetch() {
 		// Register the variables
 		$_ = $this->vars;
 		$l = $this->l10n;
@@ -416,12 +417,12 @@ class OC_Template{
 	 * Includes another template. use <?php echo $this->inc('template'); ?> to
 	 * do this.
 	 */
-	public function inc( $file, $additionalparams = null ){
+	public function inc( $file, $additionalparams = null ) {
 		// $_ erstellen
 		$_ = $this->vars;
 		$l = $this->l10n;
 
-		if( !is_null($additionalparams)){
+		if( !is_null($additionalparams)) {
 			$_ = array_merge( $additionalparams, $this->vars );
 		}
 
@@ -442,9 +443,9 @@ class OC_Template{
 	 * @param $parameters Parameters for the template
 	 * @returns true/false
 	 */
-	public static function printUserPage( $application, $name, $parameters = array() ){
+	public static function printUserPage( $application, $name, $parameters = array() ) {
 		$content = new OC_Template( $application, $name, "user" );
-		foreach( $parameters as $key => $value ){
+		foreach( $parameters as $key => $value ) {
 			$content->assign( $key, $value, false );
 		}
 		print $content->printPage();
@@ -457,9 +458,9 @@ class OC_Template{
 	 * @param $parameters Parameters for the template
 	 * @returns true/false
 	 */
-	public static function printAdminPage( $application, $name, $parameters = array() ){
+	public static function printAdminPage( $application, $name, $parameters = array() ) {
 		$content = new OC_Template( $application, $name, "admin" );
-		foreach( $parameters as $key => $value ){
+		foreach( $parameters as $key => $value ) {
 			$content->assign( $key, $value, false );
 		}
 		return $content->printPage();
@@ -472,9 +473,9 @@ class OC_Template{
 	 * @param $parameters Parameters for the template
 	 * @returns true/false
 	 */
-	public static function printGuestPage( $application, $name, $parameters = array() ){
+	public static function printGuestPage( $application, $name, $parameters = array() ) {
 		$content = new OC_Template( $application, $name, "guest" );
-		foreach( $parameters as $key => $value ){
+		foreach( $parameters as $key => $value ) {
 			$content->assign( $key, $value, false );
 		}
 		return $content->printPage();
diff --git a/lib/templatelayout.php b/lib/templatelayout.php
index 588a7845997..c898628bcdf 100644
--- a/lib/templatelayout.php
+++ b/lib/templatelayout.php
@@ -7,13 +7,13 @@
  */
 
 class OC_TemplateLayout extends OC_Template {
-	public function __construct( $renderas ){
+	public function __construct( $renderas ) {
 		// Decide which page we show
 
-		if( $renderas == 'user' ){
+		if( $renderas == 'user' ) {
 			parent::__construct( 'core', 'layout.user' );
 			$this->assign('searchurl',OC_Helper::linkTo( 'search', 'index.php' ), false);
-			if(array_search(OC_APP::getCurrentApp(),array('settings','admin','help'))!==false){
+			if(array_search(OC_APP::getCurrentApp(),array('settings','admin','help'))!==false) {
 				$this->assign('bodyid','body-settings', false);
 			}else{
 				$this->assign('bodyid','body-user', false);
@@ -29,19 +29,29 @@ class OC_TemplateLayout extends OC_Template {
 					break;
 				}
 			}
-		}else{
-			parent::__construct( 'core', 'layout.guest' );
+		} else if ($renderas == 'guest') {
+			parent::__construct('core', 'layout.guest');
+		} else {
+			parent::__construct('core', 'layout.base');
 		}
 
 		$apps_paths = array();
-		foreach(OC_App::getEnabledApps() as $app){
+		foreach(OC_App::getEnabledApps() as $app) {
 			$apps_paths[$app] = OC_App::getAppWebPath($app);
-    }
+		}
 		$this->assign( 'apps_paths', str_replace('\\/', '/',json_encode($apps_paths)),false ); // Ugly unescape slashes waiting for better solution
 
+		if (OC_Config::getValue('installed', false) && !OC_AppConfig::getValue('core', 'remote_core.css', false)) {
+			OC_AppConfig::setValue('core', 'remote_core.css', '/core/minimizer.php');
+			OC_AppConfig::setValue('core', 'remote_core.js', '/core/minimizer.php');
+		}
+
 		// Add the js files
 		$jsfiles = self::findJavascriptFiles(OC_Util::$scripts);
 		$this->assign('jsfiles', array(), false);
+		if (!empty(OC_Util::$core_scripts)) {
+			$this->append( 'jsfiles', OC_Helper::linkToRemote('core.js', false));
+		}
 		foreach($jsfiles as $info) {
 			$root = $info[0];
 			$web = $info[1];
@@ -51,8 +61,10 @@ class OC_TemplateLayout extends OC_Template {
 
 		// Add the css files
 		$cssfiles = self::findStylesheetFiles(OC_Util::$styles);
-
 		$this->assign('cssfiles', array());
+		if (!empty(OC_Util::$core_styles)) {
+			$this->append( 'cssfiles', OC_Helper::linkToRemote('core.css', false));
+		}
 		foreach($cssfiles as $info) {
 			$root = $info[0];
 			$web = $info[1];
@@ -63,7 +75,7 @@ class OC_TemplateLayout extends OC_Template {
 			foreach(OC::$APPSROOTS as $app_root) {
 				if($root == $app_root['path']) {
 					$in_root = true;
-          break;
+					break;
 				}
 			}
 
@@ -94,7 +106,7 @@ class OC_TemplateLayout extends OC_Template {
                 return false;
         }
 
-	static public function findStylesheetFiles($styles){
+	static public function findStylesheetFiles($styles) {
 		// Read the selected theme from the config file
 		$theme=OC_Config::getValue( 'theme' );
 
@@ -102,7 +114,7 @@ class OC_TemplateLayout extends OC_Template {
 		$fext = self::getFormFactorExtension();
 
 		$files = array();
-		foreach($styles as $style){
+		foreach($styles as $style) {
 			// is it in 3rdparty?
 			if(self::appendIfExist($files, OC::$THIRDPARTYROOT, OC::$THIRDPARTYWEBROOT, $style.'.css')) {
 
@@ -130,7 +142,7 @@ class OC_TemplateLayout extends OC_Template {
 		}
 		// Add the theme css files. you can override the default values here
 		if(!empty($theme)) {
-			foreach($styles as $style){
+			foreach($styles as $style) {
 				     if(self::appendIfExist($files, OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$style$fext.css" )) {
 				}elseif(self::appendIfExist($files, OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$style.css" )) {
 
@@ -145,7 +157,7 @@ class OC_TemplateLayout extends OC_Template {
 		return $files;
 	}
 
-	static public function findJavascriptFiles($scripts){
+	static public function findJavascriptFiles($scripts) {
 		// Read the selected theme from the config file
 		$theme=OC_Config::getValue( 'theme' );
 
@@ -153,7 +165,7 @@ class OC_TemplateLayout extends OC_Template {
 		$fext = self::getFormFactorExtension();
 
 		$files = array();
-		foreach($scripts as $script){
+		foreach($scripts as $script) {
 			// Is it in 3rd party?
 			if(self::appendIfExist($files, OC::$THIRDPARTYROOT, OC::$THIRDPARTYWEBROOT, $script.'.js')) {
 
diff --git a/lib/updater.php b/lib/updater.php
index 967f64c0b30..ad42f2bf605 100644
--- a/lib/updater.php
+++ b/lib/updater.php
@@ -28,7 +28,7 @@ class OC_Updater{
 	/**
 	 * Check if a new version is available
 	 */
-	public static function check(){
+	public static function check() {
 		OC_Appconfig::setValue('core', 'lastupdatedat',microtime(true));
 		if(OC_Appconfig::getValue('core', 'installedat','')=='') OC_Appconfig::setValue('core', 'installedat',microtime(true));
 
@@ -43,7 +43,7 @@ class OC_Updater{
 		//fetch xml data from updater
 		$url=$updaterurl.'?version='.$versionstring;
                 $xml=@file_get_contents($url);
-                if($xml==FALSE){
+                if($xml==FALSE) {
                         return array();
                 }
                 $data=@simplexml_load_string($xml);
@@ -57,16 +57,18 @@ class OC_Updater{
                 return $tmp;
 	}
 
-	public static function ShowUpdatingHint(){
-		if(OC_Config::getValue('updatechecker', true)==true){
+	public static function ShowUpdatingHint() {
+		$l = OC_L10N::get('lib');
+
+		if(OC_Config::getValue('updatechecker', true)==true) {
 			$data=OC_Updater::check();
 			if(isset($data['version']) and $data['version']<>'') {
-				$txt='<span style="color:#AA0000; font-weight:bold;">'.$data['versionstring'].' is available. Get <a href="'.$data['web'].'">more information</a></span>';
+				$txt='<span style="color:#AA0000; font-weight:bold;">'.$l->t('%s is available. Get <a href="%s">more information</a>',array($data['versionstring'], $data['web'])).'</span>';
 			}else{
-				$txt='up to date';
+				$txt=$l->t('up to date');
 			}
 		}else{
-			$txt='updates check is disabled';
+			$txt=$l->t('updates check is disabled');
 		}
 		return($txt);
 	}
@@ -75,7 +77,7 @@ class OC_Updater{
 	/**
 	 * do ownCloud update
 	 */
-	public static function doUpdate(){
+	public static function doUpdate() {
 
 		//update ownCloud core
 
diff --git a/lib/user.php b/lib/user.php
index c14ef2d6ca6..89dab9f9647 100644
--- a/lib/user.php
+++ b/lib/user.php
@@ -40,6 +40,8 @@ class OC_User {
 	// The backend used for user management
 	private static $_usedBackends = array();
 
+	private static $_setupedBackends = array();
+
 	// Backends available (except database)
 	private static $_backends = array();
 
@@ -50,7 +52,7 @@ class OC_User {
 	 *
 	 * Makes a list of backends that can be used by other modules
 	 */
-	public static function registerBackend( $backend ){
+	public static function registerBackend( $backend ) {
 		self::$_backends[] = $backend;
 		return true;
 	}
@@ -61,7 +63,7 @@ class OC_User {
 	 *
 	 * Returns the names of all backends.
 	 */
-	public static function getBackends(){
+	public static function getBackends() {
 		return self::$_backends;
 	}
 
@@ -71,7 +73,7 @@ class OC_User {
 	 *
 	 * Returns the names of all used backends.
 	 */
-	public static function getUsedBackends(){
+	public static function getUsedBackends() {
 		return array_keys(self::$_usedBackends);
 	}
 
@@ -82,17 +84,17 @@ class OC_User {
 	 *
 	 * Set the User Authentication Module
 	 */
-	public static function useBackend( $backend = 'database' ){
-		if($backend instanceof OC_User_Interface){
+	public static function useBackend( $backend = 'database' ) {
+		if($backend instanceof OC_User_Interface) {
 			self::$_usedBackends[get_class($backend)]=$backend;
 		}else{
 			// You'll never know what happens
-			if( null === $backend OR !is_string( $backend )){
+			if( null === $backend OR !is_string( $backend )) {
 				$backend = 'database';
 			}
 
 			// Load backend
-			switch( $backend ){
+			switch( $backend ) {
 				case 'database':
 				case 'mysql':
 				case 'sqlite':
@@ -110,11 +112,33 @@ class OC_User {
 	/**
 	 * remove all used backends
 	 */
-	public static function clearBackends(){
+	public static function clearBackends() {
 		self::$_usedBackends=array();
 	}
 
 	/**
+	 * setup the configured backends in config.php
+	 */
+	public static function setupBackends() {
+		$backends=OC_Config::getValue('user_backends',array());
+		foreach($backends as $i=>$config) {
+			$class=$config['class'];
+			$arguments=$config['arguments'];
+			if(class_exists($class) and array_search($i,self::$_setupedBackends)===false) {
+				// make a reflection object
+				$reflectionObj = new ReflectionClass($class);
+
+				// use Reflection to create a new instance, using the $args
+				$backend = $reflectionObj->newInstanceArgs($arguments);
+				self::useBackend($backend);
+				$_setupedBackends[]=$i;
+			}else{
+				OC_Log::write('core','User backend '.$class.' not found.',OC_Log::ERROR);
+			}
+		}
+	}
+
+	/**
 	 * @brief Create a new user
 	 * @param $uid The username of the user to create
 	 * @param $password The password of the new user
@@ -125,23 +149,23 @@ class OC_User {
 	 *
 	 * Allowed characters in the username are: "a-z", "A-Z", "0-9" and "_.@-"
 	 */
-	public static function createUser( $uid, $password ){
+	public static function createUser( $uid, $password ) {
 		// Check the name for bad characters
 		// Allowed are: "a-z", "A-Z", "0-9" and "_.@-"
-		if( preg_match( '/[^a-zA-Z0-9 _\.@\-]/', $uid )){
+		if( preg_match( '/[^a-zA-Z0-9 _\.@\-]/', $uid )) {
 			throw new Exception('Only the following characters are allowed in a username: "a-z", "A-Z", "0-9", and "_.@-"');
 		}
 		// No empty username
-		if(trim($uid) == ''){
+		if(trim($uid) == '') {
 			throw new Exception('A valid username must be provided');
 		}
 		// No empty password
-		if(trim($password) == ''){
+		if(trim($password) == '') {
 			throw new Exception('A valid password must be provided');
 		}
 
 		// Check if user already exists
-		if( self::userExists($uid) ){
+		if( self::userExists($uid) ) {
 			throw new Exception('The username is already being used');
 		}
 
@@ -149,9 +173,9 @@ class OC_User {
 		$run = true;
 		OC_Hook::emit( "OC_User", "pre_createUser", array( "run" => &$run, "uid" => $uid, "password" => $password ));
 
-		if( $run ){
+		if( $run ) {
 			//create the user in the first backend that supports creating users
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				if(!$backend->implementsActions(OC_USER_BACKEND_CREATE_USER))
 					continue;
 
@@ -171,17 +195,17 @@ class OC_User {
 	 *
 	 * Deletes a user
 	 */
-	public static function deleteUser( $uid ){
+	public static function deleteUser( $uid ) {
 		$run = true;
 		OC_Hook::emit( "OC_User", "pre_deleteUser", array( "run" => &$run, "uid" => $uid ));
 
-		if( $run ){
+		if( $run ) {
 			//delete the user from all backends
-			foreach(self::$_usedBackends as $backend){
+			foreach(self::$_usedBackends as $backend) {
 				$backend->deleteUser($uid);
 			}
 			// We have to delete the user from all groups
-			foreach( OC_Group::getUserGroups( $uid ) as $i ){
+			foreach( OC_Group::getUserGroups( $uid ) as $i ) {
 				OC_Group::removeFromGroup( $uid, $i );
 			}
 			// Delete the user's keys in preferences
@@ -203,14 +227,14 @@ class OC_User {
 	 *
 	 * Log in a user and regenerate a new session - if the password is ok
 	 */
-	public static function login( $uid, $password ){
+	public static function login( $uid, $password ) {
 		$run = true;
 		OC_Hook::emit( "OC_User", "pre_login", array( "run" => &$run, "uid" => $uid ));
 
-		if( $run ){
+		if( $run ) {
 			$uid = self::checkPassword( $uid, $password );
 			$enabled = self::isEnabled($uid);
-			if($uid && $enabled){
+			if($uid && $enabled) {
 				session_regenerate_id(true);
 				self::setUserId($uid);
 				OC_Hook::emit( "OC_User", "post_login", array( "uid" => $uid, 'password'=>$password ));
@@ -236,7 +260,7 @@ class OC_User {
 	 *
 	 * Logout, destroys session
 	 */
-	public static function logout(){
+	public static function logout() {
 		OC_Hook::emit( "OC_User", "logout", array());
 		session_unset();
 		session_destroy();
@@ -250,10 +274,11 @@ class OC_User {
 	 *
 	 * Checks if the user is logged in
 	 */
-	public static function isLoggedIn(){
+	public static function isLoggedIn() {
 		if( isset($_SESSION['user_id']) AND $_SESSION['user_id']) {
 			OC_App::loadApps(array('authentication'));
-			if (self::userExists($_SESSION['user_id']) ){
+			self::setupBackends();
+			if (self::userExists($_SESSION['user_id']) ) {
 				return true;
 			}
 		}
@@ -264,8 +289,8 @@ class OC_User {
 	 * @brief get the user id of the user currently logged in.
 	 * @return string uid or false
 	 */
-	public static function getUser(){
-		if( isset($_SESSION['user_id']) AND $_SESSION['user_id'] ){
+	public static function getUser() {
+		if( isset($_SESSION['user_id']) AND $_SESSION['user_id'] ) {
 			return $_SESSION['user_id'];
 		}
 		else{
@@ -279,7 +304,7 @@ class OC_User {
 	 *
 	 * generates a password
 	 */
-	public static function generatePassword(){
+	public static function generatePassword() {
 		return uniqId();
 	}
 
@@ -291,15 +316,15 @@ class OC_User {
 	 *
 	 * Change the password of a user
 	 */
-	public static function setPassword( $uid, $password ){
+	public static function setPassword( $uid, $password ) {
 		$run = true;
 		OC_Hook::emit( "OC_User", "pre_setPassword", array( "run" => &$run, "uid" => $uid, "password" => $password ));
 
-		if( $run ){
+		if( $run ) {
 			$success = false;
-			foreach(self::$_usedBackends as $backend){
-				if($backend->implementsActions(OC_USER_BACKEND_SET_PASSWORD)){
-					if($backend->userExists($uid)){
+			foreach(self::$_usedBackends as $backend) {
+				if($backend->implementsActions(OC_USER_BACKEND_SET_PASSWORD)) {
+					if($backend->userExists($uid)) {
 						$success |= $backend->setPassword($uid,$password);
 					}
 				}
@@ -321,11 +346,11 @@ class OC_User {
 	 * Check if the password is correct without logging in the user
 	 * returns the user id or false
 	 */
-	public static function checkPassword( $uid, $password ){
-		foreach(self::$_usedBackends as $backend){
-			if($backend->implementsActions(OC_USER_BACKEND_CHECK_PASSWORD)){
+	public static function checkPassword( $uid, $password ) {
+		foreach(self::$_usedBackends as $backend) {
+			if($backend->implementsActions(OC_USER_BACKEND_CHECK_PASSWORD)) {
 				$result=$backend->checkPassword( $uid, $password );
-				if($result){
+				if($result) {
 					return $result;
 				}
 			}
@@ -341,11 +366,11 @@ class OC_User {
 	 * Check if the password is correct without logging in the user
 	 * returns the user id or false
 	 */
-	public static function getHome($uid){
-		foreach(self::$_usedBackends as $backend){
-			if($backend->implementsActions(OC_USER_BACKEND_GET_HOME)){
+	public static function getHome($uid) {
+		foreach(self::$_usedBackends as $backend) {
+			if($backend->implementsActions(OC_USER_BACKEND_GET_HOME)) {
 				$result=$backend->getHome($uid);
-				if($result){
+				if($result) {
 					return $result;
 				}
 			}
@@ -376,42 +401,42 @@ class OC_User {
 	 * @param string $uid the username
 	 * @return boolean
 	 */
-	public static function userExists($uid){
-		foreach(self::$_usedBackends as $backend){
+	public static function userExists($uid) {
+		foreach(self::$_usedBackends as $backend) {
 			$result=$backend->userExists($uid);
-			if($result===true){
+			if($result===true) {
 				return true;
 			}
 		}
 		return false;
 	}
-	
+
 	/**
 	 * disables a user
 	 * @param string $userid the user to disable
 	 */
-	public static function disableUser($userid){
+	public static function disableUser($userid) {
 		$query = "INSERT INTO `*PREFIX*preferences` (`userid`, `appid`, `configkey`, `configvalue`) VALUES(?, ?, ?, ?)";
 		$query = OC_DB::prepare($query);
 		$query->execute(array($userid, 'core', 'enabled', 'false'));
 	}
-	
+
 	/**
 	 * enable a user
 	 * @param string $userid
 	 */
-	public static function enableUser($userid){
+	public static function enableUser($userid) {
 		$query = "DELETE FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ? AND `configkey` = ? AND `configvalue` = ?";
 		$query = OC_DB::prepare($query);
 		$query->execute(array($userid, 'core', 'enabled', 'false'));
 	}
-	
+
 	/**
 	 * checks if a user is enabled
 	 * @param string $userid
 	 * @return bool
 	 */
-	public static function isEnabled($userid){
+	public static function isEnabled($userid) {
 		$query = "SELECT `userid` FROM `*PREFIX*preferences` WHERE `userid` = ? AND `appid` = ? AND `configkey` = ? AND `configvalue` = ?";
 		$query = OC_DB::prepare($query);
 		$results = $query->execute(array($userid, 'core', 'enabled', 'false'));
@@ -422,7 +447,7 @@ class OC_User {
 	 * @brief Set cookie value to use in next page load
 	 * @param string $username username to be set
 	 */
-	public static function setMagicInCookie($username, $token){
+	public static function setMagicInCookie($username, $token) {
 		$secure_cookie = OC_Config::getValue("forcessl", false);
 		setcookie("oc_username", $username, time()+60*60*24*15, '', '', $secure_cookie);
 		setcookie("oc_token", $token, time()+60*60*24*15, '', '', $secure_cookie);
@@ -432,7 +457,7 @@ class OC_User {
 	/**
 	 * @brief Remove cookie for "remember username"
 	 */
-	public static function unsetMagicInCookie(){
+	public static function unsetMagicInCookie() {
 		unset($_COOKIE["oc_username"]);
 		unset($_COOKIE["oc_token"]);
 		unset($_COOKIE["oc_remember_login"]);
diff --git a/lib/user/backend.php b/lib/user/backend.php
index 36e4bd9f761..2a95db93690 100644
--- a/lib/user/backend.php
+++ b/lib/user/backend.php
@@ -59,9 +59,9 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	* Returns the supported actions as int to be
 	* compared with OC_USER_BACKEND_CREATE_USER etc.
 	*/
-	public function getSupportedActions(){
+	public function getSupportedActions() {
 		$actions = 0;
-		foreach($this->possibleActions AS $action => $methodName){
+		foreach($this->possibleActions AS $action => $methodName) {
 			if(method_exists($this, $methodName)) {
 				$actions |= $action;
 			}
@@ -78,7 +78,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	* Returns the supported actions as int to be
 	* compared with OC_USER_BACKEND_CREATE_USER etc.
 	*/
-	public function implementsActions($actions){
+	public function implementsActions($actions) {
 		return (bool)($this->getSupportedActions() & $actions);
 	}
 
@@ -89,7 +89,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	*
 	* Deletes a user
 	*/
-	public function deleteUser( $uid ){
+	public function deleteUser( $uid ) {
 		return false;
 	}
 
@@ -99,7 +99,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	*
 	* Get a list of all users.
 	*/
-	public function getUsers($search = '', $limit = -1, $offset = 0) {
+	public function getUsers($search = '', $limit = null, $offset = null) {
 		return array();
 	}
 
@@ -108,7 +108,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	* @param string $uid the username
 	* @return boolean
 	*/
-	public function userExists($uid){
+	public function userExists($uid) {
 		return false;
 	}
 
@@ -117,7 +117,7 @@ abstract class OC_User_Backend implements OC_User_Interface {
 	* @param string $uid the username
 	* @return boolean
 	*/
-	public function getHome($uid){
+	public function getHome($uid) {
 		return false;
 	}
 }
diff --git a/lib/user/database.php b/lib/user/database.php
index a4cffe5d0c1..76b44a2f6ca 100644
--- a/lib/user/database.php
+++ b/lib/user/database.php
@@ -43,9 +43,9 @@ class OC_User_Database extends OC_User_Backend {
 	 * @var PasswordHash
 	 */
 	static private $hasher=null;
-	
-	private function getHasher(){
-		if(!self::$hasher){
+
+	private function getHasher() {
+		if(!self::$hasher) {
 			//we don't want to use DES based crypt(), since it doesn't return a has with a recognisable prefix
 			$forcePortable=(CRYPT_BLOWFISH!=1);
 			self::$hasher=new PasswordHash(8,$forcePortable);
@@ -53,7 +53,7 @@ class OC_User_Database extends OC_User_Backend {
 		return self::$hasher;
 
 	}
-	
+
 	/**
 	 * @brief Create a new user
 	 * @param $uid The username of the user to create
@@ -63,8 +63,8 @@ class OC_User_Database extends OC_User_Backend {
 	 * Creates a new user. Basic checking of username is done in OC_User
 	 * itself, not in its subclasses.
 	 */
-	public function createUser( $uid, $password ){
-		if( $this->userExists($uid) ){
+	public function createUser( $uid, $password ) {
+		if( $this->userExists($uid) ) {
 			return false;
 		}else{
 			$hasher=$this->getHasher();
@@ -83,7 +83,7 @@ class OC_User_Database extends OC_User_Backend {
 	 *
 	 * Deletes a user
 	 */
-	public function deleteUser( $uid ){
+	public function deleteUser( $uid ) {
 		// Delete user-group-relation
 		$query = OC_DB::prepare( 'DELETE FROM `*PREFIX*users` WHERE uid = ?' );
 		$query->execute( array( $uid ));
@@ -98,8 +98,8 @@ class OC_User_Database extends OC_User_Backend {
 	 *
 	 * Change the password of a user
 	 */
-	public function setPassword( $uid, $password ){
-		if( $this->userExists($uid) ){
+	public function setPassword( $uid, $password ) {
+		if( $this->userExists($uid) ) {
 			$hasher=$this->getHasher();
 			$hash = $hasher->HashPassword($password.OC_Config::getValue('passwordsalt', ''));
 			$query = OC_DB::prepare( 'UPDATE `*PREFIX*users` SET `password` = ? WHERE `uid` = ?' );
@@ -120,22 +120,22 @@ class OC_User_Database extends OC_User_Backend {
 	 * Check if the password is correct without logging in the user
 	 * returns the user id or false
 	 */
-	public function checkPassword( $uid, $password ){
-		$query = OC_DB::prepare( 'SELECT `uid`, `password` FROM `*PREFIX*users` WHERE `uid` = ?' );
+	public function checkPassword( $uid, $password ) {
+		$query = OC_DB::prepare( 'SELECT `uid`, `password` FROM `*PREFIX*users` WHERE LOWER(`uid`) = LOWER(?)' );
 		$result = $query->execute( array( $uid));
 
 		$row=$result->fetchRow();
-		if($row){
+		if($row) {
 			$storedHash=$row['password'];
-			if ($storedHash[0]=='$'){//the new phpass based hashing
+			if ($storedHash[0]=='$') {//the new phpass based hashing
 				$hasher=$this->getHasher();
-				if($hasher->CheckPassword($password.OC_Config::getValue('passwordsalt', ''), $storedHash)){
+				if($hasher->CheckPassword($password.OC_Config::getValue('passwordsalt', ''), $storedHash)) {
 					return $row['uid'];
 				}else{
 					return false;
 				}
 			}else{//old sha1 based hashing
-				if(sha1($password)==$storedHash){
+				if(sha1($password)==$storedHash) {
 					//upgrade to new hashing
 					$this->setPassword($row['uid'],$password);
 					return $row['uid'];
@@ -169,10 +169,10 @@ class OC_User_Database extends OC_User_Backend {
 	 * @param string $uid the username
 	 * @return boolean
 	 */
-	public function userExists($uid){
-		$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*users` WHERE `uid` = ?' );
+	public function userExists($uid) {
+		$query = OC_DB::prepare( 'SELECT * FROM `*PREFIX*users` WHERE LOWER(`uid`) = LOWER(?)' );
 		$result = $query->execute( array( $uid ));
-		
+
 		return $result->numRows() > 0;
 	}
 
@@ -181,8 +181,8 @@ class OC_User_Database extends OC_User_Backend {
 	* @param string $uid the username
 	* @return boolean
 	*/
-	public function getHome($uid){
-		if($this->userExists($uid)){
+	public function getHome($uid) {
+		if($this->userExists($uid)) {
 			return OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" ) . '/' . $uid;
 		}else{
 			return false;
diff --git a/lib/user/dummy.php b/lib/user/dummy.php
index da3edfb2df4..4dbbc02b888 100644
--- a/lib/user/dummy.php
+++ b/lib/user/dummy.php
@@ -35,8 +35,8 @@ class OC_User_Dummy extends OC_User_Backend {
 		* Creates a new user. Basic checking of username is done in OC_User
 		* itself, not in its subclasses.
 		*/
-	public function createUser($uid, $password){
-		if(isset($this->users[$uid])){
+	public function createUser($uid, $password) {
+		if(isset($this->users[$uid])) {
 			return false;
 		}else{
 			$this->users[$uid]=$password;
@@ -51,8 +51,8 @@ class OC_User_Dummy extends OC_User_Backend {
 		*
 		* Deletes a user
 		*/
-	public function deleteUser( $uid ){
-		if(isset($this->users[$uid])){
+	public function deleteUser( $uid ) {
+		if(isset($this->users[$uid])) {
 			unset($this->users[$uid]);
 			return true;
 		}else{
@@ -68,8 +68,8 @@ class OC_User_Dummy extends OC_User_Backend {
 		*
 		* Change the password of a user
 		*/
-	public function setPassword($uid, $password){
-		if(isset($this->users[$uid])){
+	public function setPassword($uid, $password) {
+		if(isset($this->users[$uid])) {
 			$this->users[$uid]=$password;
 			return true;
 		}else{
@@ -86,8 +86,8 @@ class OC_User_Dummy extends OC_User_Backend {
 		* Check if the password is correct without logging in the user
 		* returns the user id or false
 		*/
-	public function checkPassword($uid, $password){
-		if(isset($this->users[$uid])){
+	public function checkPassword($uid, $password) {
+		if(isset($this->users[$uid])) {
 			return ($this->users[$uid]==$password);
 		}else{
 			return false;
@@ -100,7 +100,7 @@ class OC_User_Dummy extends OC_User_Backend {
 		*
 		* Get a list of all users.
 		*/
-	public function getUsers($search = '', $limit = -1, $offset = 0) {
+	public function getUsers($search = '', $limit = null, $offset = null) {
 		return array_keys($this->users);
 	}
 
@@ -109,7 +109,7 @@ class OC_User_Dummy extends OC_User_Backend {
 		* @param string $uid the username
 		* @return boolean
 		*/
-	public function userExists($uid){
+	public function userExists($uid) {
 		return isset($this->users[$uid]);
 	}
 }
diff --git a/lib/user/http.php b/lib/user/http.php
index 547c0201b69..2668341408d 100644
--- a/lib/user/http.php
+++ b/lib/user/http.php
@@ -30,29 +30,29 @@ class OC_User_HTTP extends OC_User_Backend {
 	 * @param string path
 	 * @return array
 	 */
-	private function parseUrl($url){
+	private function parseUrl($url) {
 		$parts=parse_url($url);
 		$url=$parts['scheme'].'://'.$parts['host'];
-		if(isset($parts['port'])){
+		if(isset($parts['port'])) {
 			$url.=':'.$parts['port'];
 		}
 		$url.=$parts['path'];
-		if(isset($parts['query'])){
+		if(isset($parts['query'])) {
 			$url.='?'.$parts['query'];
 		}
 		return array($parts['user'],$url);
-		
+
 	}
-	
+
 	/**
 	 * check if an url is a valid login
 	 * @param string url
 	 * @return boolean
 	 */
-	private function matchUrl($url){
+	private function matchUrl($url) {
 		return ! is_null(parse_url($url,PHP_URL_USER));
 	}
-	
+
 	/**
 	 * @brief Check if the password is correct
 	 * @param $uid The username
@@ -62,12 +62,12 @@ class OC_User_HTTP extends OC_User_Backend {
 	 * Check if the password is correct without logging in the user
 	 * returns the user id or false
 	 */
-	public function checkPassword($uid, $password){
-		if(!$this->matchUrl($uid)){
+	public function checkPassword($uid, $password) {
+		if(!$this->matchUrl($uid)) {
 			return false;
 		}
 		list($user,$url)=$this->parseUrl($uid);
-		
+
 		$ch = curl_init();
 		curl_setopt($ch, CURLOPT_URL, $url);
 		curl_setopt($ch, CURLOPT_USERPWD, $user.':'.$password);
@@ -76,7 +76,7 @@ class OC_User_HTTP extends OC_User_Backend {
 		curl_exec($ch);
 
 		$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-		
+
 		curl_close($ch);
 
 		return $status==200;
@@ -87,7 +87,7 @@ class OC_User_HTTP extends OC_User_Backend {
 	 * @param string $uid the username
 	 * @return boolean
 	 */
-	public function userExists($uid){
+	public function userExists($uid) {
 		return $this->matchUrl($uid);
 	}
 
@@ -96,8 +96,8 @@ class OC_User_HTTP extends OC_User_Backend {
 	* @param string $uid the username
 	* @return boolean
 	*/
-	public function getHome($uid){
-		if($this->userExists($uid)){
+	public function getHome($uid) {
+		if($this->userExists($uid)) {
 			return OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" ) . '/' . $uid;
 		}else{
 			return false;
diff --git a/lib/user/interface.php b/lib/user/interface.php
index a4903898fb1..3d9f4691f24 100644
--- a/lib/user/interface.php
+++ b/lib/user/interface.php
@@ -48,7 +48,7 @@ interface OC_User_Interface {
 	*
 	* Get a list of all users.
 	*/
-	public function getUsers($search = '', $limit = -1, $offset = 0);
+	public function getUsers($search = '', $limit = null, $offset = null);
 
 	/**
 	* @brief check if a user exists
diff --git a/lib/util.php b/lib/util.php
index 01f53cb2f38..f28f83ad717 100755
--- a/lib/util.php
+++ b/lib/util.php
@@ -14,38 +14,42 @@ class OC_Util {
 	public static $core_scripts=array();
 
 	// Can be set up
-	public static function setupFS( $user = '' ){// configure the initial filesystem based on the configuration
-		if(self::$fsSetup){//setting up the filesystem twice can only lead to trouble
+	public static function setupFS( $user = '' ) {// configure the initial filesystem based on the configuration
+		if(self::$fsSetup) {//setting up the filesystem twice can only lead to trouble
 			return false;
 		}
 
+		// If we are not forced to load a specific user we load the one that is logged in
+		if( $user == "" && OC_User::isLoggedIn()) {
+			$user = OC_User::getUser();
+		}
+
+		// the filesystem will finish when $user is not empty,
+		// mark fs setup here to avoid doing the setup from loading
+		// OC_Filesystem
+		if ($user != '') {
+			self::$fsSetup=true;
+		}
+
 		$CONFIG_DATADIRECTORY = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
 		//first set up the local "root" storage
-		if(!self::$rootMounted){
+		if(!self::$rootMounted) {
 			OC_Filesystem::mount('OC_Filestorage_Local',array('datadir'=>$CONFIG_DATADIRECTORY),'/');
 			self::$rootMounted=true;
 		}
 
-		// If we are not forced to load a specific user we load the one that is logged in
-		if( $user == "" && OC_User::isLoggedIn()){
-			$user = OC_User::getUser();
-		}
-
-		if( $user != "" ){ //if we aren't logged in, there is no use to set up the filesystem
+		if( $user != "" ) { //if we aren't logged in, there is no use to set up the filesystem
 			$user_dir = '/'.$user.'/files';
 			$user_root = OC_User::getHome($user);
 			$userdirectory = $user_root . '/files';
-			OC_Filesystem::mount('OC_Filestorage_Local',array('datadir'=>$user_root), $user);
-			if( !is_dir( $userdirectory )){
+			if( !is_dir( $userdirectory )) {
 				mkdir( $userdirectory, 0755, true );
 			}
-			OC_Filesystem::mount('OC_Filestorage_Local',array('datadir'=>$user_root), $user);
-			
 			//jail the user into his "home" directory
+			OC_Filesystem::mount('OC_Filestorage_Local', array('datadir' => $user_root), $user);
 			OC_Filesystem::init($user_dir);
 			$quotaProxy=new OC_FileProxy_Quota();
 			OC_FileProxy::register($quotaProxy);
-			self::$fsSetup=true;
 			// Load personal mount config
 			if (is_file($user_root.'/mount.php')) {
 				$mountConfig = include($user_root.'/mount.php');
@@ -54,18 +58,19 @@ class OC_Util {
 						OC_Filesystem::mount($options['class'], $options['options'], $mountPoint);
 					}
 				}
+
+				$mtime=filemtime($user_root.'/mount.php');
+				$previousMTime=OC_Preferences::getValue($user,'files','mountconfigmtime',0);
+				if($mtime>$previousMTime) {//mount config has changed, filecache needs to be updated
+					OC_FileCache::clear($user);
+					OC_Preferences::setValue($user,'files','mountconfigmtime',$mtime);
+				}
 			}
 			OC_Hook::emit('OC_Filesystem', 'setup', array('user' => $user, 'user_dir' => $user_dir));
 		}
 	}
 
-	public static function setupFS4all(){
-		foreach(OC_User::getUsers() as $user){
-			OC_Filesystem::mount('OC_Filestorage_Local',array('datadir'=>OC_User::getHome($singleuser)), $user);
-		}	
-	}
-	
-	public static function tearDownFS(){
+	public static function tearDownFS() {
 		OC_Filesystem::tearDown();
 		self::$fsSetup=false;
 	}
@@ -74,23 +79,24 @@ class OC_Util {
 	 * get the current installed version of ownCloud
 	 * @return array
 	 */
-	public static function getVersion(){
-		return array(4,82,5);
+	public static function getVersion() {
+		// hint: We only can count up. So the internal version number of ownCloud 4.5 will be 4,9,0. This is not visible to the user
+		return array(4,83,7);
 	}
 
 	/**
 	 * get the current installed version string of ownCloud
 	 * @return string
 	 */
-	public static function getVersionString(){
-		return '5 pre alpha 1';
+	public static function getVersionString() {
+		return '4.5 beta 2';
 	}
 
 	/**
 	 * get the current installed edition of ownCloud. There is the community edition that just returns an empty string and the enterprise edition that returns "Enterprise".
 	 * @return string
 	 */
-	public static function getEditionString(){
+	public static function getEditionString() {
 			return '';
 	}
 
@@ -100,12 +106,12 @@ class OC_Util {
 	 * @param appid  $application
 	 * @param filename  $file
 	 */
-	public static function addScript( $application, $file = null ){
-		if( is_null( $file )){
+	public static function addScript( $application, $file = null ) {
+		if( is_null( $file )) {
 			$file = $application;
 			$application = "";
 		}
-		if( !empty( $application )){
+		if( !empty( $application )) {
 			self::$scripts[] = "$application/js/$file";
 		}else{
 			self::$scripts[] = "js/$file";
@@ -118,12 +124,12 @@ class OC_Util {
 	 * @param appid  $application
 	 * @param filename  $file
 	 */
-	public static function addStyle( $application, $file = null ){
-		if( is_null( $file )){
+	public static function addStyle( $application, $file = null ) {
+		if( is_null( $file )) {
 			$file = $application;
 			$application = "";
 		}
-		if( !empty( $application )){
+		if( !empty( $application )) {
 			self::$styles[] = "$application/css/$file";
 		}else{
 			self::$styles[] = "css/$file";
@@ -136,7 +142,7 @@ class OC_Util {
 	 * @param array $attributes array of attributes for the element
 	 * @param string $text the text content for the element
 	 */
-	public static function addHeader( $tag, $attributes, $text=''){
+	public static function addHeader( $tag, $attributes, $text='') {
 		self::$headers[]=array('tag'=>$tag,'attributes'=>$attributes,'text'=>$text);
 	}
 
@@ -146,8 +152,8 @@ class OC_Util {
 	 * @param int timestamp $timestamp
 	 * @param bool dateOnly option to ommit time from the result
 	 */
-    public static function formatDate( $timestamp,$dateOnly=false){
-		if(isset($_SESSION['timezone'])){//adjust to clients timezone if we know it
+    public static function formatDate( $timestamp,$dateOnly=false) {
+		if(isset($_SESSION['timezone'])) {//adjust to clients timezone if we know it
 			$systemTimeZone = intval(date('O'));
 			$systemTimeZone=(round($systemTimeZone/100,0)*60)+($systemTimeZone%100);
 			$clientTimeZone=$_SESSION['timezone']*60;
@@ -191,12 +197,14 @@ class OC_Util {
 	 * check if the current server configuration is suitable for ownCloud
 	 * @return array arrays with error messages and hints
 	 */
-	public static function checkServer(){
+	public static function checkServer() {
 		$errors=array();
 
+		$web_server_restart= false;
 		//check for database drivers
-		if(!(is_callable('sqlite_open') or class_exists('SQLite3')) and !is_callable('mysql_connect') and !is_callable('pg_connect')){
+		if(!(is_callable('sqlite_open') or class_exists('SQLite3')) and !is_callable('mysql_connect') and !is_callable('pg_connect')) {
 			$errors[]=array('error'=>'No database drivers (sqlite, mysql, or postgresql) installed.<br/>','hint'=>'');//TODO: sane hint
+			$web_server_restart= true;
 		}
 
 		//common hint for all file permissons error messages
@@ -210,32 +218,32 @@ class OC_Util {
 		// Check if there is a writable install folder.
 		if(OC_Config::getValue('appstoreenabled', true)) {
 			if( OC_App::getInstallPath() === null  || !is_writable(OC_App::getInstallPath())) {
-				$errors[]=array('error'=>"Can't write into apps directory",'hint'=>"You can usually fix this by giving the webserver user write access to the apps directory 
+				$errors[]=array('error'=>"Can't write into apps directory",'hint'=>"You can usually fix this by giving the webserver user write access to the apps directory
 				in owncloud or disabling the appstore in the config file.");
 			}
 		}
 
 		$CONFIG_DATADIRECTORY = OC_Config::getValue( "datadirectory", OC::$SERVERROOT."/data" );
 		//check for correct file permissions
-		if(!stristr(PHP_OS, 'WIN')){
-                	$permissionsModHint="Please change the permissions to 0770 so that the directory cannot be listed by other users.";
+		if(!stristr(PHP_OS, 'WIN')) {
+			$permissionsModHint="Please change the permissions to 0770 so that the directory cannot be listed by other users.";
 			$prems=substr(decoct(@fileperms($CONFIG_DATADIRECTORY)),-3);
-			if(substr($prems,-1)!='0'){
+			if(substr($prems,-1)!='0') {
 				OC_Helper::chmodr($CONFIG_DATADIRECTORY,0770);
 				clearstatcache();
 				$prems=substr(decoct(@fileperms($CONFIG_DATADIRECTORY)),-3);
-				if(substr($prems,2,1)!='0'){
+				if(substr($prems,2,1)!='0') {
 					$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY.') is readable for other users<br/>','hint'=>$permissionsModHint);
 				}
 			}
-			if( OC_Config::getValue( "enablebackup", false )){
+			if( OC_Config::getValue( "enablebackup", false )) {
 				$CONFIG_BACKUPDIRECTORY = OC_Config::getValue( "backupdirectory", OC::$SERVERROOT."/backup" );
 				$prems=substr(decoct(@fileperms($CONFIG_BACKUPDIRECTORY)),-3);
-				if(substr($prems,-1)!='0'){
+				if(substr($prems,-1)!='0') {
 					OC_Helper::chmodr($CONFIG_BACKUPDIRECTORY,0770);
 					clearstatcache();
 					$prems=substr(decoct(@fileperms($CONFIG_BACKUPDIRECTORY)),-3);
-					if(substr($prems,2,1)!='0'){
+					if(substr($prems,2,1)!='0') {
 						$errors[]=array('error'=>'Data directory ('.$CONFIG_BACKUPDIRECTORY.') is readable for other users<br/>','hint'=>$permissionsModHint);
 					}
 				}
@@ -244,37 +252,52 @@ class OC_Util {
 			//TODO: permissions checks for windows hosts
 		}
 		// Create root dir.
-		if(!is_dir($CONFIG_DATADIRECTORY)){
+		if(!is_dir($CONFIG_DATADIRECTORY)) {
 			$success=@mkdir($CONFIG_DATADIRECTORY);
 			if(!$success) {
 				$errors[]=array('error'=>"Can't create data directory (".$CONFIG_DATADIRECTORY.")",'hint'=>"You can usually fix this by giving the webserver write access to the ownCloud directory '".OC::$SERVERROOT."' (in a terminal, use the command 'chown -R www-data:www-data /path/to/your/owncloud/install/data' ");
 			}
-		} else if(!is_writable($CONFIG_DATADIRECTORY)){
+		} else if(!is_writable($CONFIG_DATADIRECTORY)) {
 			$errors[]=array('error'=>'Data directory ('.$CONFIG_DATADIRECTORY.') not writable by ownCloud<br/>','hint'=>$permissionsHint);
 		}
 
 		// check if all required php modules are present
-		if(!class_exists('ZipArchive')){
+		if(!class_exists('ZipArchive')) {
 			$errors[]=array('error'=>'PHP module zip not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
 		}
 
-		if(!function_exists('mb_detect_encoding')){
+		if(!function_exists('mb_detect_encoding')) {
 			$errors[]=array('error'=>'PHP module mb multibyte not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
 		}
-		if(!function_exists('ctype_digit')){
+		if(!function_exists('ctype_digit')) {
 			$errors[]=array('error'=>'PHP module ctype is not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
 		}
-		if(!function_exists('json_encode')){
+		if(!function_exists('json_encode')) {
 			$errors[]=array('error'=>'PHP module JSON is not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
 		}
-		if(!function_exists('imagepng')){
+		if(!function_exists('imagepng')) {
 			$errors[]=array('error'=>'PHP module GD is not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
+		}
+		if(!function_exists('gzencode')) {
+			$errors[]=array('error'=>'PHP module zlib is not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
 		}
-		if(floatval(phpversion())<5.3){
+		if(floatval(phpversion())<5.3) {
 			$errors[]=array('error'=>'PHP 5.3 is required.<br/>','hint'=>'Please ask your server administrator to update PHP to version 5.3 or higher. PHP 5.2 is no longer supported by ownCloud and the PHP community.');
+			$web_server_restart= false;
 		}
-		if(!defined('PDO::ATTR_DRIVER_NAME')){
+		if(!defined('PDO::ATTR_DRIVER_NAME')) {
 			$errors[]=array('error'=>'PHP PDO module is not installed.<br/>','hint'=>'Please ask your server administrator to install the module.');
+			$web_server_restart= false;
+		}
+
+		if($web_server_restart) {
+			$errors[]=array('error'=>'PHP modules have been installed, but they are still listed as missing?<br/>','hint'=>'Please ask your server administrator to restart the web server.');
 		}
 
 		return $errors;
@@ -307,8 +330,8 @@ class OC_Util {
 	/**
 	* Check if the app is enabled, redirects to home if not
 	*/
-	public static function checkAppEnabled($app){
-		if( !OC_App::isEnabled($app)){
+	public static function checkAppEnabled($app) {
+		if( !OC_App::isEnabled($app)) {
 			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
 			exit();
 		}
@@ -318,10 +341,10 @@ class OC_Util {
 	* Check if the user is logged in, redirects to home if not. With
 	* redirect URL parameter to the request URI.
 	*/
-	public static function checkLoggedIn(){
+	public static function checkLoggedIn() {
 		// Check if we are a user
-		if( !OC_User::isLoggedIn()){
-			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ).'?redirect_url='.urlencode($_SERVER["REQUEST_URI"]));
+		if( !OC_User::isLoggedIn()) {
+			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php', array('redirect_url' => urlencode($_SERVER["REQUEST_URI"]))));
 			exit();
 		}
 	}
@@ -329,10 +352,10 @@ class OC_Util {
 	/**
 	* Check if the user is a admin, redirects to home if not
 	*/
-	public static function checkAdminUser(){
+	public static function checkAdminUser() {
 		// Check if we are a user
 		self::checkLoggedIn();
-		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )){
+		if( !OC_Group::inGroup( OC_User::getUser(), 'admin' )) {
 			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
 			exit();
 		}
@@ -342,13 +365,13 @@ class OC_Util {
 	* Check if the user is a subadmin, redirects to home if not
 	* @return array $groups where the current user is subadmin
 	*/
-	public static function checkSubAdminUser(){
+	public static function checkSubAdminUser() {
 		// Check if we are a user
 		self::checkLoggedIn();
-		if(OC_Group::inGroup(OC_User::getUser(),'admin')){
+		if(OC_Group::inGroup(OC_User::getUser(),'admin')) {
 			return true;
 		}
-		if(!OC_SubAdmin::isSubAdmin(OC_User::getUser())){
+		if(!OC_SubAdmin::isSubAdmin(OC_User::getUser())) {
 			header( 'Location: '.OC_Helper::linkToAbsolute( '', 'index.php' ));
 			exit();
 		}
@@ -358,7 +381,7 @@ class OC_Util {
 	/**
 	* Redirect to the user default page
 	*/
-	public static function redirectToDefaultPage(){
+	public static function redirectToDefaultPage() {
 		if(isset($_REQUEST['redirect_url']) && (substr($_REQUEST['redirect_url'], 0, strlen(OC::$WEBROOT)) == OC::$WEBROOT || $_REQUEST['redirect_url'][0] == '/')) {
 			$location = $_REQUEST['redirect_url'];
 		}
@@ -383,9 +406,9 @@ class OC_Util {
 	 * get an id unqiue for this instance
 	 * @return string
 	 */
-	public static function getInstanceId(){
+	public static function getInstanceId() {
 		$id=OC_Config::getValue('instanceid',null);
-		if(is_null($id)){
+		if(is_null($id)) {
 			$id=uniqid();
 			OC_Config::setValue('instanceid',$id);
 		}
@@ -397,7 +420,7 @@ class OC_Util {
 	 * Todo: Write howto
 	 * @return $token Generated token.
 	 */
-	public static function callRegister(){
+	public static function callRegister() {
 		//mamimum time before token exires
 		$maxtime=(60*60);  // 1 hour
 
@@ -409,15 +432,15 @@ class OC_Util {
 
 		// cleanup old tokens garbage collector
 		// only run every 20th time so we don't waste cpu cycles
-		if(rand(0,20)==0) {  
+		if(rand(0,20)==0) {
 			foreach($_SESSION as $key=>$value) {
 				// search all tokens in the session
 				if(substr($key,0,12)=='requesttoken') {
-					if($value+$maxtime<time()){
+					if($value+$maxtime<time()) {
 						// remove outdated tokens
-						unset($_SESSION[$key]);						
+						unset($_SESSION[$key]);
 					}
-				}	
+				}
 			}
 		}
 		// return the token
@@ -429,14 +452,14 @@ class OC_Util {
 	 * @brief Check an ajax get/post call if the request token is valid.
 	 * @return boolean False if request token is not set or is invalid.
 	 */
-	public static function isCallRegistered(){
+	public static function isCallRegistered() {
 		//mamimum time before token exires
 		$maxtime=(60*60);  // 1 hour
 		if(isset($_GET['requesttoken'])) {
 			$token=$_GET['requesttoken'];
-		}elseif(isset($_POST['requesttoken'])){
+		}elseif(isset($_POST['requesttoken'])) {
 			$token=$_POST['requesttoken'];
-		}elseif(isset($_SERVER['HTTP_REQUESTTOKEN'])){
+		}elseif(isset($_SERVER['HTTP_REQUESTTOKEN'])) {
 			$token=$_SERVER['HTTP_REQUESTTOKEN'];
 		}else{
 			//no token found.
@@ -444,7 +467,7 @@ class OC_Util {
 		}
 		if(isset($_SESSION['requesttoken-'.$token])) {
 			$timestamp=$_SESSION['requesttoken-'.$token];
-			if($timestamp+$maxtime<time()){
+			if($timestamp+$maxtime<time()) {
 				return false;
 			}else{
 				//token valid
@@ -459,22 +482,22 @@ class OC_Util {
 	 * @brief Check an ajax get/post call if the request token is valid. exit if not.
 	 * Todo: Write howto
 	 */
-	public static function callCheck(){
+	public static function callCheck() {
 		if(!OC_Util::isCallRegistered()) {
 			exit;
 		}
 	}
-	
+
 	/**
 	 * @brief Public function to sanitize HTML
 	 *
 	 * This function is used to sanitize HTML and should be applied on any
 	 * string or array of strings before displaying it on a web page.
-	 * 
+	 *
 	 * @param string or array of strings
 	 * @return array with sanitized strings or a single sanitized string, depends on the input parameter.
 	 */
-	public static function sanitizeHTML( &$value ){
+	public static function sanitizeHTML( &$value ) {
 		if (is_array($value) || is_object($value)) array_walk_recursive($value,'OC_Util::sanitizeHTML');
 		else $value = htmlentities($value, ENT_QUOTES, 'UTF-8'); //Specify encoding for PHP<5.4
 		return $value;
diff --git a/lib/vcategories.php b/lib/vcategories.php
index 20d9e3b5d61..f5123adeeb6 100644
--- a/lib/vcategories.php
+++ b/lib/vcategories.php
@@ -125,11 +125,11 @@ class OC_VCategories {
 	*	$result = $stmt->execute();
 	*	$objects = array();
 	*	if(!is_null($result)) {
-	*		while( $row = $result->fetchRow()){
+	*		while( $row = $result->fetchRow()) {
 	*			$objects[] = $row['carddata'];
 	*		}
 	*	}
-	* 	$categories->rescan($objects);
+	*	$categories->rescan($objects);
 	*/
 	public function rescan($objects, $sync=true, $reset=true) {
 		if($reset === true) {
@@ -183,7 +183,7 @@ class OC_VCategories {
 		if(!is_null($objects)) {
 			foreach($objects as $key=>&$value) {
 				$vobject = OC_VObject::parse($value[1]);
-				if(!is_null($vobject)){
+				if(!is_null($vobject)) {
 					$categories = $vobject->getAsArray('CATEGORIES');
 					//OC_Log::write('core','OC_VCategories::delete, before: '.$key.': '.print_r($categories, true), OC_Log::DEBUG);
 					foreach($names as $name) {
@@ -219,7 +219,7 @@ class OC_VCategories {
 		if(!is_array($haystack)) {
 			return false;
 		}
-		return array_search(strtolower($needle),array_map('strtolower',$haystack)); 
+		return array_search(strtolower($needle),array_map('strtolower',$haystack));
 	}
 
 }
diff --git a/lib/vobject.php b/lib/vobject.php
index ec80e1d605a..b5a04b4bf65 100644
--- a/lib/vobject.php
+++ b/lib/vobject.php
@@ -30,7 +30,7 @@ class OC_VObject{
 	/**
 	 * @returns Sabre_VObject_Component
 	 */
-	public function getVObject(){
+	public function getVObject() {
 		return $this->vobject;
 	}
 
@@ -39,11 +39,11 @@ class OC_VObject{
 	 * @param string VObject as string
 	 * @returns Sabre_VObject or null
 	 */
-	public static function parse($data){
+	public static function parse($data) {
 		try {
 			Sabre_VObject_Property::$classMap['LAST-MODIFIED'] = 'Sabre_VObject_Property_DateTime';
 			$vobject = Sabre_VObject_Reader::read($data);
-			if ($vobject instanceof Sabre_VObject_Component){
+			if ($vobject instanceof Sabre_VObject_Component) {
 				$vobject = new OC_VObject($vobject);
 			}
 			return $vobject;
@@ -58,8 +58,8 @@ class OC_VObject{
 	 * @param string $value
 	 * @return string
 	 */
-	public static function escapeSemicolons($value){
-		foreach($value as &$i ){
+	public static function escapeSemicolons($value) {
+		foreach($value as &$i ) {
 			$i = implode("\\\\;", explode(';', $i));
 		}
 		return implode(';',$value);
@@ -70,11 +70,11 @@ class OC_VObject{
 	 * @param string $value
 	 * @return array
 	 */
-	public static function unescapeSemicolons($value){
+	public static function unescapeSemicolons($value) {
 		$array = explode(';',$value);
-		for($i=0;$i<count($array);$i++){
-			if(substr($array[$i],-2,2)=="\\\\"){
-				if(isset($array[$i+1])){
+		for($i=0;$i<count($array);$i++) {
+			if(substr($array[$i],-2,2)=="\\\\") {
+				if(isset($array[$i+1])) {
 					$array[$i] = substr($array[$i],0,count($array[$i])-2).';'.$array[$i+1];
 					unset($array[$i+1]);
 				}
@@ -91,16 +91,16 @@ class OC_VObject{
 	 * Constuctor
 	 * @param Sabre_VObject_Component or string
 	 */
-	public function __construct($vobject_or_name){
-		if (is_object($vobject_or_name)){
+	public function __construct($vobject_or_name) {
+		if (is_object($vobject_or_name)) {
 			$this->vobject = $vobject_or_name;
 		} else {
 			$this->vobject = new Sabre_VObject_Component($vobject_or_name);
 		}
 	}
 
-	public function add($item, $itemValue = null){
-		if ($item instanceof OC_VObject){
+	public function add($item, $itemValue = null) {
+		if ($item instanceof OC_VObject) {
 			$item = $item->getVObject();
 		}
 		$this->vobject->add($item, $itemValue);
@@ -113,12 +113,12 @@ class OC_VObject{
 	 * @param object $parameters of property
 	 * @returns Sabre_VObject_Property newly created
 	 */
-	public function addProperty($name, $value, $parameters=array()){
-		if(is_array($value)){
+	public function addProperty($name, $value, $parameters=array()) {
+		if(is_array($value)) {
 			$value = OC_VObject::escapeSemicolons($value);
 		}
 		$property = new Sabre_VObject_Property( $name, $value );
-		foreach($parameters as $name => $value){
+		foreach($parameters as $name => $value) {
 			$property->parameters[] = new Sabre_VObject_Parameter($name, $value);
 		}
 
@@ -126,13 +126,13 @@ class OC_VObject{
 		return $property;
 	}
 
-	public function setUID(){
+	public function setUID() {
 		$uid = substr(md5(rand().time()),0,10);
 		$this->vobject->add('UID',$uid);
 	}
 
-	public function setString($name, $string){
-		if ($string != ''){
+	public function setString($name, $string) {
+		if ($string != '') {
 			$string = strtr($string, array("\r\n"=>"\n"));
 			$this->vobject->__set($name, $string);
 		}else{
@@ -150,11 +150,11 @@ class OC_VObject{
 	 * @param int $dateType
 	 * @return void
 	 */
-	public function setDateTime($name, $datetime, $dateType=Sabre_VObject_Property_DateTime::LOCALTZ){
-		if ($datetime == 'now'){
+	public function setDateTime($name, $datetime, $dateType=Sabre_VObject_Property_DateTime::LOCALTZ) {
+		if ($datetime == 'now') {
 			$datetime = new DateTime();
 		}
-		if ($datetime instanceof DateTime){
+		if ($datetime instanceof DateTime) {
 			$datetime_element = new Sabre_VObject_Property_DateTime($name);
 			$datetime_element->setDateTime($datetime, $dateType);
 			$this->vobject->__set($name, $datetime_element);
@@ -163,45 +163,45 @@ class OC_VObject{
 		}
 	}
 
-	public function getAsString($name){
+	public function getAsString($name) {
 		return $this->vobject->__isset($name) ?
 			$this->vobject->__get($name)->value :
 			'';
 	}
 
-	public function getAsArray($name){
+	public function getAsArray($name) {
 		$values = array();
-		if ($this->vobject->__isset($name)){
+		if ($this->vobject->__isset($name)) {
 			$values = explode(',', $this->getAsString($name));
 			$values = array_map('trim', $values);
 		}
 		return $values;
 	}
 
-	public function &__get($name){
-		if ($name == 'children'){
+	public function &__get($name) {
+		if ($name == 'children') {
 			return $this->vobject->children;
 		}
 		$return = $this->vobject->__get($name);
-		if ($return instanceof Sabre_VObject_Component){
+		if ($return instanceof Sabre_VObject_Component) {
 			$return = new OC_VObject($return);
 		}
 		return $return;
 	}
 
-	public function __set($name, $value){
+	public function __set($name, $value) {
 		return $this->vobject->__set($name, $value);
 	}
 
-	public function __unset($name){
+	public function __unset($name) {
 		return $this->vobject->__unset($name);
 	}
 
-	public function __isset($name){
+	public function __isset($name) {
 		return $this->vobject->__isset($name);
 	}
 
-	public function __call($function,$arguments){
+	public function __call($function,$arguments) {
 		return call_user_func_array(array($this->vobject, $function), $arguments);
 	}
 }