Fix session not working error

lib/base.php

@@ -290,9 +290,12 @@ class OC {
 
 		try{
 			// set the session name to the instance id - which is unique
-			self::$session=new \OC\Session\Internal(OC_Util::getInstanceId());
+			self::$session = new \OC\Session\Internal(OC_Util::getInstanceId());
 			// if session cant be started break with http 500 error
 		}catch (Exception $e){
+			//set the session object to a dummy session so code relying on the session existing still works
+			self::$session = new \OC\Session\Memory('');
+
 			OC_Log::write('core', 'Session could not be initialized',
 				OC_Log::ERROR);
 

lib/session/internal.php

@@ -17,7 +17,6 @@ namespace OC\Session;
  */
 class Internal extends Memory {
 	public function __construct($name) {
-		session_write_close();
 		session_name($name);
 		if (@session_start()) {
 			throw new \Exception('Failed to start session');