[add] HTML Purifier added to clean code

1 files changed, 72 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/LinkTypes.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/LinkTypes.php
new file mode 100644
index 00000000..3f56934f
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrDef/HTML/LinkTypes.php
@@ -0,0 +1,72 @@
+<?php

+

+/**

+ * Validates a rel/rev link attribute against a directive of allowed values

+ * @note We cannot use Enum because link types allow multiple

+ *       values.

+ * @note Assumes link types are ASCII text

+ */

+class HTMLPurifier_AttrDef_HTML_LinkTypes extends HTMLPurifier_AttrDef

+{

+

+    /**

+     * Name config attribute to pull.

+     * @type string

+     */

+    protected $name;

+

+    /**

+     * @param string $name

+     */

+    public function __construct($name)

+    {

+        $configLookup = array(

+            'rel' => 'AllowedRel',

+            'rev' => 'AllowedRev'

+        );

+        if (!isset($configLookup[$name])) {

+            trigger_error(

+                'Unrecognized attribute name for link ' .

+                'relationship.',

+                E_USER_ERROR

+            );

+            return;

+        }

+        $this->name = $configLookup[$name];

+    }

+

+    /**

+     * @param string $string

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return bool|string

+     */

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

+    {

+        $allowed = $config->get('Attr.' . $this->name);

+        if (empty($allowed)) {

+            return false;

+        }

+

+        $string = $this->parseCDATA($string);

+        $parts = explode(' ', $string);

+

+        // lookup to prevent duplicates

+        $ret_lookup = array();

+        foreach ($parts as $part) {

+            $part = strtolower(trim($part));

+            if (!isset($allowed[$part])) {

+                continue;

+            }

+            $ret_lookup[$part] = true;

+        }

+

+        if (empty($ret_lookup)) {

+            return false;

+        }

+        $string = implode(' ', array_keys($ret_lookup));

+        return $string;

+    }

+}

+

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