From 771f496fe799a139490ede1dce60298f96cd42da Mon Sep 17 00:00:00 2001
From: michelvaldrighi <michelvaldrighi@git.wordpress.org>
Date: Mon, 17 May 2004 19:40:56 +0000
Subject: [PATCH] added check_admin_referer()

git-svn-id: https://develop.svn.wordpress.org/trunk@1297 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-admin/admin-functions.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/wp-admin/admin-functions.php b/wp-admin/admin-functions.php
index 2f0d81e5f7..c26ffe70d3 100644
--- a/wp-admin/admin-functions.php
+++ b/wp-admin/admin-functions.php
@@ -367,4 +367,12 @@ function touch_time($edit = 1) {
 	<?php
 }
 
+function check_admin_referer() {
+  $adminurl = url_shorten(strtolower(get_settings('siteurl'))).'/wp-admin';
+  $referer = url_shorten(strtolower($_SERVER['HTTP_REFERER']));
+  if (substr($referer, 0, strlen($adminurl)) != $adminurl) {
+    die('Sorry, you need to enable sending referrers, for this feature to work.');
+  }
+}
+
 ?>
\ No newline at end of file