diff --git a/thirdparty/Smarty/plugins/modifier.sanitize.php b/thirdparty/Smarty/plugins/modifier.sanitize.php
new file mode 100644
index 0000000..99ecaf9
--- /dev/null
+++ b/thirdparty/Smarty/plugins/modifier.sanitize.php
@@ -0,0 +1,71 @@
+<?php
+
+function smarty_modifier_sanitize($string, $esc_type = 'html', $charset='UTF-8')
+{
+    // based on escape, but with charset
+    switch ($esc_type) {
+        case 'html':
+            return htmlspecialchars($string, ENT_QUOTES,$charset);
+
+        case 'htmlall':
+            return htmlentities($string, ENT_QUOTES,$charset);
+
+        case 'url':
+            return rawurlencode($string);
+
+        case 'quotes':
+            // escape unescaped single quotes
+            return preg_replace("%(?<!\\\\)'%", "\\'", $string);
+
+        case 'hex':
+            // escape every character into hex
+            $return = '';
+            for ($x=0; $x < strlen($string); $x++) {
+                $return .= '%' . bin2hex($string[$x]);
+            }
+            return $return;
+
+        case 'hexentity':
+            $return = '';
+            for ($x=0; $x < strlen($string); $x++) {
+                $return .= '&#x' . bin2hex($string[$x]) . ';';
+            }
+            return $return;
+
+        case 'decentity':
+            $return = '';
+            for ($x=0; $x < strlen($string); $x++) {
+                $return .= '&#' . ord($string[$x]) . ';';
+            }
+            return $return;
+
+        case 'javascript':
+            // escape quotes and backslashes, newlines, etc.
+            return strtr($string, array('\\'=>'\\\\',"'"=>"\\'",'"'=>'\\"',"\r"=>'\\r',"\n"=>'\\n','</'=>'<\/'));
+
+        case 'mail':
+            // safe way to display e-mail address on a web page
+            return str_replace(array('@', '.'),array(' [AT] ', ' [DOT] '), $string);
+
+        case 'nonstd':
+           // escape non-standard chars, such as ms document quotes
+           $_res = '';
+           for($_i = 0, $_len = strlen($string); $_i < $_len; $_i++) {
+               $_ord = ord($string{$_i});
+               // non-standard char, escape it
+               if($_ord >= 126){
+                   $_res .= '&#' . $_ord . ';';
+               }
+               else {
+                   $_res .= $string{$_i};
+               }
+           }
+           return $_res;
+
+        default:
+            return $string;
+    }
+}
+
+
+?>