diff --git a/lib/public/user.php b/lib/public/user.php
new file mode 100644
index 0000000000000000000000000000000000000000..f59fbe0b25af023dd135b4bfb4c6df46c1d5f957
--- /dev/null
+++ b/lib/public/user.php
@@ -0,0 +1,62 @@
+<?php
+/**
+* ownCloud
+*
+* @author Frank Karlitschek
+* @copyright 2010 Frank Karlitschek karlitschek@kde.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
+* 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/>.
+*
+*/
+
+/**
+ * Public interface of ownCloud for apps to use.
+ * User Class.
+ *
+ */
+
+// 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;
+
+class User {
+
+
+	/**
+	 * @brief get the user id of the user currently logged in.
+	 * @return string uid or false
+	 */
+	public static function getUser(){
+		return \OC_USER::getUser();
+	}
+
+
+
+	/**
+	 * @brief Check if the user is logged in
+	 * @returns true/false
+	 *
+	 * Checks if the user is logged in
+	 */
+	public static function isLoggedIn(){
+		return \OC_USER::isLoggedIn();
+	}
+
+
+}
+
+
+
+
+?>
diff --git a/lib/public/util.php b/lib/public/util.php
index 3425ed9df3b81404001d79ce35dd867f52d8028b..8c52ff28b8336302000b893ddb340dd4bfa12a98 100644
--- a/lib/public/util.php
+++ b/lib/public/util.php
@@ -43,13 +43,36 @@ class Util {
 	 * @param string $fromname
 	 * @param bool $html
 	 */
-	public static function sendmail($toaddress,$toname,$subject,$mailtext,$fromaddress,$fromname,$html=0,$altbody='',$ccaddress='',$ccname='',$bcc='') {
+	public static function sendMail($toaddress,$toname,$subject,$mailtext,$fromaddress,$fromname,$html=0,$altbody='',$ccaddress='',$ccname='',$bcc='') {
 
 		// call the internal mail class
-		OC_MAIL::send($toaddress,$toname,$subject,$mailtext,$fromaddress,$fromname,$html=0,$altbody='',$ccaddress='',$ccname='',$bcc='');
+		\OC_MAIL::send($toaddress,$toname,$subject,$mailtext,$fromaddress,$fromname,$html=0,$altbody='',$ccaddress='',$ccname='',$bcc='');
 
 	}
 
+        /**
+	 * 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);
+
+        }
+
+
+	/**
+	 * add a css file
+	 *
+	 * @param url  $url
+	 */
+	public static function addStyle( $application, $file = null ){
+		\OC_Util::addStyle($application, $file);
+        }
 
 
 }