From f718e2b0db0fe3477212a8dd6c3ec067f4432862 Mon Sep 17 00:00:00 2001
From: Klaus Weidenbach <Klaus.Weidenbach@gmx.net>
Date: Sat, 18 Mar 2017 17:50:05 +0100
Subject: :arrow_up: Update HTML Purifier library.

Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.
---
 .../library/HTMLPurifier/Filter/YouTube.php        | 65 ++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 vendor/ezyang/htmlpurifier/library/HTMLPurifier/Filter/YouTube.php

(limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/Filter/YouTube.php')

diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Filter/YouTube.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Filter/YouTube.php
new file mode 100644
index 000000000..276d8362f
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Filter/YouTube.php
@@ -0,0 +1,65 @@
+<?php
+
+class HTMLPurifier_Filter_YouTube extends HTMLPurifier_Filter
+{
+
+    /**
+     * @type string
+     */
+    public $name = 'YouTube';
+
+    /**
+     * @param string $html
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return string
+     */
+    public function preFilter($html, $config, $context)
+    {
+        $pre_regex = '#<object[^>]+>.+?' .
+            '(?:http:)?//www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s';
+        $pre_replace = '<span class="youtube-embed">\1</span>';
+        return preg_replace($pre_regex, $pre_replace, $html);
+    }
+
+    /**
+     * @param string $html
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return string
+     */
+    public function postFilter($html, $config, $context)
+    {
+        $post_regex = '#<span class="youtube-embed">((?:v|cp)/[A-Za-z0-9\-_=]+)</span>#';
+        return preg_replace_callback($post_regex, array($this, 'postFilterCallback'), $html);
+    }
+
+    /**
+     * @param $url
+     * @return string
+     */
+    protected function armorUrl($url)
+    {
+        return str_replace('--', '-&#45;', $url);
+    }
+
+    /**
+     * @param array $matches
+     * @return string
+     */
+    protected function postFilterCallback($matches)
+    {
+        $url = $this->armorUrl($matches[1]);
+        return '<object width="425" height="350" type="application/x-shockwave-flash" ' .
+        'data="//www.youtube.com/' . $url . '">' .
+        '<param name="movie" value="//www.youtube.com/' . $url . '"></param>' .
+        '<!--[if IE]>' .
+        '<embed src="//www.youtube.com/' . $url . '"' .
+        'type="application/x-shockwave-flash"' .
+        'wmode="transparent" width="425" height="350" />' .
+        '<![endif]-->' .
+        '</object>';
+    }
+}
+
+// vim: et sw=4 sts=4
-- 
cgit v1.2.3