[add] HTML Purifier added to clean code

1 files changed, 89 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI/IPv6.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI/IPv6.php
new file mode 100644
index 00000000..67f148bd
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/URI/IPv6.php
@@ -0,0 +1,89 @@
+<?php

+

+/**

+ * Validates an IPv6 address.

+ * @author Feyd @ forums.devnetwork.net (public domain)

+ * @note This function requires brackets to have been removed from address

+ *       in URI.

+ */

+class HTMLPurifier_AttrDef_URI_IPv6 extends HTMLPurifier_AttrDef_URI_IPv4

+{

+

+    /**

+     * @param string $aIP

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return bool|string

+     */

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

+    {

+        if (!$this->ip4) {

+            $this->_loadRegex();

+        }

+

+        $original = $aIP;

+

+        $hex = '[0-9a-fA-F]';

+        $blk = '(?:' . $hex . '{1,4})';

+        $pre = '(?:/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))'; // /0 - /128

+

+        //      prefix check

+        if (strpos($aIP, '/') !== false) {

+            if (preg_match('#' . $pre . '$#s', $aIP, $find)) {

+                $aIP = substr($aIP, 0, 0 - strlen($find[0]));

+                unset($find);

+            } else {

+                return false;

+            }

+        }

+

+        //      IPv4-compatiblity check

+        if (preg_match('#(?<=:' . ')' . $this->ip4 . '$#s', $aIP, $find)) {

+            $aIP = substr($aIP, 0, 0 - strlen($find[0]));

+            $ip = explode('.', $find[0]);

+            $ip = array_map('dechex', $ip);

+            $aIP .= $ip[0] . $ip[1] . ':' . $ip[2] . $ip[3];

+            unset($find, $ip);

+        }

+

+        //      compression check

+        $aIP = explode('::', $aIP);

+        $c = count($aIP);

+        if ($c > 2) {

+            return false;

+        } elseif ($c == 2) {

+            list($first, $second) = $aIP;

+            $first = explode(':', $first);

+            $second = explode(':', $second);

+

+            if (count($first) + count($second) > 8) {

+                return false;

+            }

+

+            while (count($first) < 8) {

+                array_push($first, '0');

+            }

+

+            array_splice($first, 8 - count($second), 8, $second);

+            $aIP = $first;

+            unset($first, $second);

+        } else {

+            $aIP = explode(':', $aIP[0]);

+        }

+        $c = count($aIP);

+

+        if ($c != 8) {

+            return false;

+        }

+

+        //      All the pieces should be 16-bit hex strings. Are they?

+        foreach ($aIP as $piece) {

+            if (!preg_match('#^[0-9a-fA-F]{4}$#s', sprintf('%04s', $piece))) {

+                return false;

+            }

+        }

+        return $original;

+    }

+}

+

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