From d4949327efa15b492cab1bef3fe074290a328a17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20L=C5=93uillet?= <nicolas.loeuillet@gmail.com>
Date: Fri, 21 Feb 2014 15:43:14 +0100
Subject: [add] HTML Purifier added to clean code

---
 .../htmlpurifier/HTMLPurifier/Injector/Linkify.php | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 inc/3rdparty/htmlpurifier/HTMLPurifier/Injector/Linkify.php

(limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/Injector/Linkify.php')

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/Injector/Linkify.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/Injector/Linkify.php
new file mode 100644
index 00000000..5eed3c12
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/Injector/Linkify.php
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * Injector that converts http, https and ftp text URLs to actual links.
+ */
+class HTMLPurifier_Injector_Linkify extends HTMLPurifier_Injector
+{
+    /**
+     * @type string
+     */
+    public $name = 'Linkify';
+
+    /**
+     * @type array
+     */
+    public $needed = array('a' => array('href'));
+
+    /**
+     * @param HTMLPurifier_Token $token
+     */
+    public function handleText(&$token)
+    {
+        if (!$this->allowsElement('a')) {
+            return;
+        }
+
+        if (strpos($token->data, '://') === false) {
+            // our really quick heuristic failed, abort
+            // this may not work so well if we want to match things like
+            // "google.com", but then again, most people don't
+            return;
+        }
+
+        // there is/are URL(s). Let's split the string:
+        // Note: this regex is extremely permissive
+        $bits = preg_split('#((?:https?|ftp)://[^\s\'",<>()]+)#Su', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
+
+
+        $token = array();
+
+        // $i = index
+        // $c = count
+        // $l = is link
+        for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
+            if (!$l) {
+                if ($bits[$i] === '') {
+                    continue;
+                }
+                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
+            } else {
+                $token[] = new HTMLPurifier_Token_Start('a', array('href' => $bits[$i]));
+                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
+                $token[] = new HTMLPurifier_Token_End('a');
+            }
+        }
+    }
+}
+
+// vim: et sw=4 sts=4
-- 
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