X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=index.php;h=21d5ed275354a052ed3df81dad4bff1b4b2c706c;hb=b3ea8b9a014b6760f6bf59be243f01753c3fc13e;hp=53fd1bfe668c78d6a9944f50353e9b53c7736847;hpb=52600ce0b063e68e622b19699841e41b5ddbf2d1;p=quix0rs-gnu-social.git

diff --git a/index.php b/index.php
index 53fd1bfe66..21d5ed2753 100644
--- a/index.php
+++ b/index.php
@@ -24,17 +24,17 @@ require_once(INSTALLDIR . "/lib/common.php");
 
 $action = $_REQUEST['action'];
 
-if (!$action) {
-	common_redirect(common_local_url('public'));
+if (!$action || !preg_match('/^[a-zA-Z0-9_-]*$/', $action)) {
+    common_redirect(common_local_url('public'));
 }
 
 $actionfile = INSTALLDIR."/actions/$action.php";
 
 if (file_exists($actionfile)) {
-	require_once($actionfile);
-	$action_class = ucfirst($action)."Action";
-	$action_obj = new $action_class();
-	call_user_func(array($action_obj, 'handle'), $_REQUEST);
+    require_once($actionfile);
+    $action_class = ucfirst($action)."Action";
+    $action_obj = new $action_class();
+    call_user_func(array($action_obj, 'handle'), $_REQUEST);
 } else {
-	common_user_error(_t('Unknown action'));
+    common_user_error(_('Unknown action'));
 }
\ No newline at end of file