1 files changed, 32 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Ident.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Ident.php
new file mode 100644
index 00000000..5f13edfd
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/CSS/Ident.php
@@ -0,0 +1,32 @@
+<?php

+

+/**

+ * Validates based on {ident} CSS grammar production

+ */

+class HTMLPurifier_AttrDef_CSS_Ident extends HTMLPurifier_AttrDef

+{

+

+    /**

+     * @param string $string

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return bool|string

+     */

+    public function validate($string, $config, $context)

+    {

+        $string = trim($string);

+

+        // early abort: '' and '0' (strings that convert to false) are invalid

+        if (!$string) {

+            return false;

+        }

+

+        $pattern = '/^(-?[A-Za-z_][A-Za-z_\-0-9]*)$/';

+        if (!preg_match($pattern, $string)) {

+            return false;

+        }

+        return $string;

+    }

+}

+

+// vim: et sw=4 sts=4