X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=index.php;h=21d5ed275354a052ed3df81dad4bff1b4b2c706c;hb=72fda63585b4c6dae290ae08de4a0f33e1bb252c;hp=26a0946f06301ab61fbd0da957439782765a2cc0;hpb=80ee6ee1d2f8c0b6f91859f48c2acb984ea0429c;p=quix0rs-gnu-social.git

diff --git a/index.php b/index.php
index 26a0946f06..21d5ed2753 100644
--- a/index.php
+++ b/index.php
@@ -1,18 +1,18 @@
 <?php
-/* 
+/*
  * Laconica - a distributed open-source microblogging tool
  * Copyright (C) 2008, Controlez-Vous, Inc.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as published by
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU Affero General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
@@ -23,13 +23,18 @@ define('LACONICA', true);
 require_once(INSTALLDIR . "/lib/common.php");
 
 $action = $_REQUEST['action'];
+
+if (!$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