From 010efc9b814b433bc60353caec185d905688a32b Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Tue, 5 Jun 2012 21:52:21 +0400
Subject: Revert "remove htmlpurifier"

This reverts commit c21a462d52bd32737c32c29b060da03b38f1c2e6.
---
 .../HTMLPurifier/URIFilter/HostBlacklist.php       | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 lib/htmlpurifier/library/HTMLPurifier/URIFilter/HostBlacklist.php

(limited to 'lib/htmlpurifier/library/HTMLPurifier/URIFilter/HostBlacklist.php')

diff --git a/lib/htmlpurifier/library/HTMLPurifier/URIFilter/HostBlacklist.php b/lib/htmlpurifier/library/HTMLPurifier/URIFilter/HostBlacklist.php
new file mode 100644
index 000000000..55fde3bf4
--- /dev/null
+++ b/lib/htmlpurifier/library/HTMLPurifier/URIFilter/HostBlacklist.php
@@ -0,0 +1,25 @@
+<?php
+
+// It's not clear to me whether or not Punycode means that hostnames
+// do not have canonical forms anymore. As far as I can tell, it's
+// not a problem (punycoding should be identity when no Unicode
+// points are involved), but I'm not 100% sure
+class HTMLPurifier_URIFilter_HostBlacklist extends HTMLPurifier_URIFilter
+{
+    public $name = 'HostBlacklist';
+    protected $blacklist = array();
+    public function prepare($config) {
+        $this->blacklist = $config->get('URI.HostBlacklist');
+        return true;
+    }
+    public function filter(&$uri, $config, $context) {
+        foreach($this->blacklist as $blacklisted_host_fragment) {
+            if (strpos($uri->host, $blacklisted_host_fragment) !== false) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
+// vim: et sw=4 sts=4
-- 
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