From 9eb27ef6ebc763ddc6f6278462b8ffeed6de0e36 Mon Sep 17 00:00:00 2001
From: Christian Foellmann <foellmann@foe-services.de>
Date: Sat, 5 Apr 2014 15:35:38 +0200
Subject: INIT phpmyadmin 4.1.12 multilanguage

---
 libraries/cleanup.lib.php | 50 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 libraries/cleanup.lib.php

(limited to 'libraries/cleanup.lib.php')

diff --git a/libraries/cleanup.lib.php b/libraries/cleanup.lib.php
new file mode 100644
index 0000000000..2874f5a0e2
--- /dev/null
+++ b/libraries/cleanup.lib.php
@@ -0,0 +1,50 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Functions for cleanup of user input.
+ *
+ * @package PhpMyAdmin
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/**
+ * Removes all variables from request except whitelisted ones.
+ *
+ * @param string &$whitelist list of variables to allow
+ *
+ * @return void
+ * @access public
+ */
+function PMA_removeRequestVars(&$whitelist)
+{
+    // do not check only $_REQUEST because it could have been overwritten
+    // and use type casting because the variables could have become
+    // strings
+    $keys = array_keys(
+        array_merge((array)$_REQUEST, (array)$_GET, (array)$_POST, (array)$_COOKIE)
+    );
+
+    foreach ($keys as $key) {
+        if (! in_array($key, $whitelist)) {
+            unset($_REQUEST[$key], $_GET[$key], $_POST[$key], $GLOBALS[$key]);
+        } else {
+            // allowed stuff could be compromised so escape it
+            // we require it to be a string
+            if (isset($_REQUEST[$key]) && ! is_string($_REQUEST[$key])) {
+                unset($_REQUEST[$key]);
+            }
+            if (isset($_POST[$key]) && ! is_string($_POST[$key])) {
+                unset($_POST[$key]);
+            }
+            if (isset($_COOKIE[$key]) && ! is_string($_COOKIE[$key])) {
+                unset($_COOKIE[$key]);
+            }
+            if (isset($_GET[$key]) && ! is_string($_GET[$key])) {
+                unset($_GET[$key]);
+            }
+        }
+    }
+}
+?>
-- 
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