check if an item in an array exists before we use it

diff --git a/index.php b/index.php
index d1c01a6dfaa4c52be58a07a8108dfcb2968cf7a1..b0d48b4acff0970c5da2100cb1fe4ee38886c559 100644 (file)
--- a/index.php
+++ b/index.php
@@ -39,19 +39,15 @@ if(count($errors)>0){
                header( "Location: ".$WEBROOT.'/'.OC_APPCONFIG::getValue( "core", "defaultpage", "files/index.php" ));
                exit();
        }
-}else{
+}elseif(isset($_POST["user"])){
        if( OC_USER::login( $_POST["user"], $_POST["password"] )){
                header( "Location: ".$WEBROOT.'/'.OC_APPCONFIG::getValue( "core", "defaultpage", "files/index.php" ));
                exit();
+       }else{
+               OC_TEMPLATE::printGuestPage( "", "login", array( "error" => true));
        }
-       else{
-               $error = false;
-               // Say "bad login" in case the user wanted to login
-               if( $_POST["user"] && $_POST["password"] ){
-                       $error = true;
-               }
-               OC_TEMPLATE::printGuestPage( "", "login", array( "error" => $error ));
-       }
+}else{
+       OC_TEMPLATE::printGuestPage( "", "login", array( "error" => false ));
 }
 
 ?>