/plugins/vjCommentPlugin/lib/tools/htmlpurifier/library/HTMLPurifier/URIFilter/Munge.php
PHP | 58 lines | 43 code | 9 blank | 6 comment | 8 complexity | af92dd990abc627653f029dca94ed2d2 MD5 | raw file
Possible License(s): LGPL-2.1
- <?php
- class HTMLPurifier_URIFilter_Munge extends HTMLPurifier_URIFilter
- {
- public $name = 'Munge';
- public $post = true;
- private $target, $parser, $doEmbed, $secretKey;
- protected $replace = array();
- public function prepare($config) {
- $this->target = $config->get('URI.' . $this->name);
- $this->parser = new HTMLPurifier_URIParser();
- $this->doEmbed = $config->get('URI.MungeResources');
- $this->secretKey = $config->get('URI.MungeSecretKey');
- return true;
- }
- public function filter(&$uri, $config, $context) {
- if ($context->get('EmbeddedURI', true) && !$this->doEmbed) return true;
- $scheme_obj = $uri->getSchemeObj($config, $context);
- if (!$scheme_obj) return true; // ignore unknown schemes, maybe another postfilter did it
- if (is_null($uri->host) || empty($scheme_obj->browsable)) {
- return true;
- }
- // don't redirect if target host is our host
- if ($uri->host === $config->getDefinition('URI')->host) {
- return true;
- }
- $this->makeReplace($uri, $config, $context);
- $this->replace = array_map('rawurlencode', $this->replace);
- $new_uri = strtr($this->target, $this->replace);
- $new_uri = $this->parser->parse($new_uri);
- // don't redirect if the target host is the same as the
- // starting host
- if ($uri->host === $new_uri->host) return true;
- $uri = $new_uri; // overwrite
- return true;
- }
- protected function makeReplace($uri, $config, $context) {
- $string = $uri->toString();
- // always available
- $this->replace['%s'] = $string;
- $this->replace['%r'] = $context->get('EmbeddedURI', true);
- $token = $context->get('CurrentToken', true);
- $this->replace['%n'] = $token ? $token->name : null;
- $this->replace['%m'] = $context->get('CurrentAttr', true);
- $this->replace['%p'] = $context->get('CurrentCSSProperty', true);
- // not always available
- if ($this->secretKey) $this->replace['%t'] = sha1($this->secretKey . ':' . $string);
- }
- }
- // vim: et sw=4 sts=4