diff --git a/lib/private/appframework/dependencyinjection/dicontainer.php b/lib/private/appframework/dependencyinjection/dicontainer.php
index 98525ed320..3ed8a583b8 100644
--- a/lib/private/appframework/dependencyinjection/dicontainer.php
+++ b/lib/private/appframework/dependencyinjection/dicontainer.php
@@ -187,6 +187,7 @@ class DIContainer extends SimpleContainer implements IAppContainer{
 	}
 
 	/**
+	 * @deprecated use IUserSession->isLoggedIn()
 	 * @return boolean
 	 */
 	function isLoggedIn() {
diff --git a/lib/private/user/session.php b/lib/private/user/session.php
index 277aa1a047..53662d0095 100644
--- a/lib/private/user/session.php
+++ b/lib/private/user/session.php
@@ -137,6 +137,15 @@ class Session implements IUserSession, Emitter {
 		}
 	}
 
+	/**
+	 * Checks wether the user is logged in
+	 *
+	 * @return bool if logged in
+	 */
+	public function isLoggedIn() {
+		return $this->getUser() !== null;
+	}
+
 	/**
 	 * set the login name
 	 *
diff --git a/lib/public/appframework/iappcontainer.php b/lib/public/appframework/iappcontainer.php
index a0b0c06881..ad8e5a2214 100644
--- a/lib/public/appframework/iappcontainer.php
+++ b/lib/public/appframework/iappcontainer.php
@@ -31,7 +31,7 @@ use OCP\IContainer;
  *
  * This container interface provides short cuts for app developers to access predefined app service.
  */
-interface IAppContainer extends IContainer{
+interface IAppContainer extends IContainer {
 
 	/**
 	 * used to return the appname of the set application
@@ -56,6 +56,7 @@ interface IAppContainer extends IContainer{
 	function registerMiddleWare($middleWare);
 
 	/**
+	 * @deprecated use IUserSession->isLoggedIn()
 	 * @return boolean
 	 */
 	function isLoggedIn();
diff --git a/lib/public/iusersession.php b/lib/public/iusersession.php
index db4abe150d..4c5b4d1ba5 100644
--- a/lib/public/iusersession.php
+++ b/lib/public/iusersession.php
@@ -3,7 +3,9 @@
  * ownCloud
  *
  * @author Bart Visscher
+ * @author Bernhard Posselt
  * @copyright 2013 Bart Visscher bartv@thisnet.nl
+ * @copyright 2014 Bernhard Posselt <dev@bernhard-posselt.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
@@ -62,4 +64,11 @@ interface IUserSession {
 	 * @return \OCP\IUser
 	 */
 	public function getUser();
+
+	/**
+	 * Checks wether the user is logged in
+	 *
+	 * @return bool if logged in
+	 */
+	public function isLoggedIn();
 }
diff --git a/tests/lib/user/session.php b/tests/lib/user/session.php
index aa1ea5841c..d441f80208 100644
--- a/tests/lib/user/session.php
+++ b/tests/lib/user/session.php
@@ -34,6 +34,34 @@ class Session extends \Test\TestCase {
 		$this->assertEquals('foo', $user->getUID());
 	}
 
+	public function testIsLoggedIn() {
+		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
+		$session->expects($this->once())
+			->method('get')
+			->with('user_id')
+			->will($this->returnValue(null));
+
+		$backend = $this->getMock('OC_User_Dummy');
+		$backend->expects($this->once())
+			->method('userExists')
+			->with('foo')
+			->will($this->returnValue(true));
+
+		$manager = new \OC\User\Manager();
+		$manager->registerBackend($backend);
+
+		$userSession = new \OC\User\Session($manager, $session);
+		$isLoggedIn = $userSession->isLoggedIn();
+		$this->assertFalse($isLoggedIn);
+
+		$session->expects($this->once())
+			->method('get')
+			->with('user_id')
+			->will($this->returnValue('foo'));
+		$isLoggedIn = $userSession->isLoggedIn();
+		$this->assertTrue($isLoggedIn);
+	}
+
 	public function testSetUser() {
 		$session = $this->getMock('\OC\Session\Memory', array(), array(''));
 		$session->expects($this->once())