From 8df3db566a3a937b45ebf11adb90d265e6f5e2d4 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Sun, 17 Nov 2019 20:45:02 +0100
Subject: initial checking of customized version 1.0rc9

---
 .../HTMLPurifier/URIFilter/DisableExternal.php     | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 vendor/ezyang/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php

(limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php')

diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php
new file mode 100644
index 0000000..ced1b13
--- /dev/null
+++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php
@@ -0,0 +1,54 @@
+<?php
+
+class HTMLPurifier_URIFilter_DisableExternal extends HTMLPurifier_URIFilter
+{
+    /**
+     * @type string
+     */
+    public $name = 'DisableExternal';
+
+    /**
+     * @type array
+     */
+    protected $ourHostParts = false;
+
+    /**
+     * @param HTMLPurifier_Config $config
+     * @return void
+     */
+    public function prepare($config)
+    {
+        $our_host = $config->getDefinition('URI')->host;
+        if ($our_host !== null) {
+            $this->ourHostParts = array_reverse(explode('.', $our_host));
+        }
+    }
+
+    /**
+     * @param HTMLPurifier_URI $uri Reference
+     * @param HTMLPurifier_Config $config
+     * @param HTMLPurifier_Context $context
+     * @return bool
+     */
+    public function filter(&$uri, $config, $context)
+    {
+        if (is_null($uri->host)) {
+            return true;
+        }
+        if ($this->ourHostParts === false) {
+            return false;
+        }
+        $host_parts = array_reverse(explode('.', $uri->host));
+        foreach ($this->ourHostParts as $i => $x) {
+            if (!isset($host_parts[$i])) {
+                return false;
+            }
+            if ($host_parts[$i] != $this->ourHostParts[$i]) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
+// vim: et sw=4 sts=4
-- 
cgit v1.2.3-54-g00ecf