Check if user is already logged in for DAV auth, instead of logging in and...

Check if user is already logged in for DAV auth, instead of logging in and creating new sessions for every request

lib/connector/sabre/auth.php

@@ -31,13 +31,18 @@ class OC_Connector_Sabre_Auth extends Sabre_DAV_Auth_Backend_AbstractBasic {
 	 * @return bool
 	 */
 	protected function validateUserPass($username, $password){
-		OC_Util::setUpFS();//login hooks may need early access to the filesystem
-		if(OC_User::login($username,$password)){
-			OC_Util::setUpFS($username);
+		if (OC_User::isLoggedIn()) {
+			OC_Util::setupFS($username);
 			return true;
-		}
-		else{
-			return false;
+		} else {
+			OC_Util::setUpFS();//login hooks may need early access to the filesystem
+			if(OC_User::login($username,$password)){
+				OC_Util::setUpFS($username);
+				return true;
+			}
+			else{
+				return false;
+			}
 		}
 	}
 }