Version 4.7.6

applications/core/modules/front/system/login.php

@@ -34,6 +34,8 @@ class _login extends \IPS\Dispatcher\Controller
 	 */
 	protected function manage()
 	{
+		\IPS\Output::i()->pageCaching = FALSE;
+
 		/* Init login class */
 		$login = new \IPS\Login( \IPS\Http\Url::internal( "app=core&module=system&controller=login", 'front', 'login' ) );
 		
@@ -112,6 +114,16 @@ class _login extends \IPS\Dispatcher\Controller
 			\IPS\Output::i()->redirect( \IPS\Http\Url::internal('') );
 		}
 
+		/* If there is only one button handler, redirect */
+        if ( !isset( \IPS\Request::i()->_processLogin ) and !$login->usernamePasswordMethods() and \count( $login->buttonMethods() ) == 1 )
+		{
+			$buttonMethod = $login->buttonMethods()[ array_key_first( $login->buttonMethods() ) ];
+			if( method_exists( $buttonMethod, 'authenticateButton' ) )
+			{
+				$buttonMethod->authenticateButton( $login );
+			}
+		}
+
 		/* Display Login Form */
 		\IPS\Output::i()->allowDefaultWidgets = FALSE;
 		\IPS\Output::i()->bodyClasses[] = 'ipsLayout_minimal';