diff options
Diffstat (limited to 'lib/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php')
-rw-r--r-- | lib/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php b/lib/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php new file mode 100644 index 000000000..d8a39a501 --- /dev/null +++ b/lib/htmlpurifier/library/HTMLPurifier/URIFilter/DisableExternal.php @@ -0,0 +1,23 @@ +<?php + +class HTMLPurifier_URIFilter_DisableExternal extends HTMLPurifier_URIFilter +{ + public $name = 'DisableExternal'; + protected $ourHostParts = false; + public function prepare($config) { + $our_host = $config->getDefinition('URI')->host; + if ($our_host !== null) $this->ourHostParts = array_reverse(explode('.', $our_host)); + } + public function filter(&$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 |