[add] HTML Purifier added to clean code

1 files changed, 52 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Nofollow.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Nofollow.php
new file mode 100644
index 00000000..25173c21
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Nofollow.php
@@ -0,0 +1,52 @@
+<?php

+

+// must be called POST validation

+

+/**

+ * Adds rel="nofollow" to all outbound links.  This transform is

+ * only attached if Attr.Nofollow is TRUE.

+ */

+class HTMLPurifier_AttrTransform_Nofollow extends HTMLPurifier_AttrTransform

+{

+    /**

+     * @type HTMLPurifier_URIParser

+     */

+    private $parser;

+

+    public function __construct()

+    {

+        $this->parser = new HTMLPurifier_URIParser();

+    }

+

+    /**

+     * @param array $attr

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return array

+     */

+    public function transform($attr, $config, $context)

+    {

+        if (!isset($attr['href'])) {

+            return $attr;

+        }

+

+        // XXX Kind of inefficient

+        $url = $this->parser->parse($attr['href']);

+        $scheme = $url->getSchemeObj($config, $context);

+

+        if ($scheme->browsable && !$url->isLocal($config, $context)) {

+            if (isset($attr['rel'])) {

+                $rels = explode(' ', $attr['rel']);

+                if (!in_array('nofollow', $rels)) {

+                    $rels[] = 'nofollow';

+                }

+                $attr['rel'] = implode(' ', $rels);

+            } else {

+                $attr['rel'] = 'nofollow';

+            }

+        }

+        return $attr;

+    }

+}

+

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