File indexing completed on 2024-12-22 05:36:22

 <?php
 
 class HTMLPurifier_URIDefinition extends HTMLPurifier_Definition
 {
 
     public $type = 'URI';
     protected $filters = array();
     protected $postFilters = array();
     protected $registeredFilters = array();
 
     /**
      * HTMLPurifier_URI object of the base specified at %URI.Base
      */
     public $base;
 
     /**
      * String host to consider "home" base, derived off of $base
      */
     public $host;
 
     /**
      * Name of default scheme based on %URI.DefaultScheme and %URI.Base
      */
     public $defaultScheme;
 
     public function __construct()
     {
         $this->registerFilter(new HTMLPurifier_URIFilter_DisableExternal());
         $this->registerFilter(new HTMLPurifier_URIFilter_DisableExternalResources());
         $this->registerFilter(new HTMLPurifier_URIFilter_DisableResources());
         $this->registerFilter(new HTMLPurifier_URIFilter_HostBlacklist());
         $this->registerFilter(new HTMLPurifier_URIFilter_SafeIframe());
         $this->registerFilter(new HTMLPurifier_URIFilter_MakeAbsolute());
         $this->registerFilter(new HTMLPurifier_URIFilter_Munge());
     }
 
     public function registerFilter($filter)
     {
         $this->registeredFilters[$filter->name] = $filter;
     }
 
     public function addFilter($filter, $config)
     {
         $r = $filter->prepare($config);
         if ($r === false) return; // null is ok, for backwards compat
         if ($filter->post) {
             $this->postFilters[$filter->name] = $filter;
         } else {
             $this->filters[$filter->name] = $filter;
         }
     }
 
     protected function doSetup($config)
     {
         $this->setupMemberVariables($config);
         $this->setupFilters($config);
     }
 
     protected function setupFilters($config)
     {
         foreach ($this->registeredFilters as $name => $filter) {
             if ($filter->always_load) {
                 $this->addFilter($filter, $config);
             } else {
                 $conf = $config->get('URI.' . $name);
                 if ($conf !== false && $conf !== null) {
                     $this->addFilter($filter, $config);
                 }
             }
         }
         unset($this->registeredFilters);
     }
 
     protected function setupMemberVariables($config)
     {
         $this->host = $config->get('URI.Host');
         $base_uri = $config->get('URI.Base');
         if (!is_null($base_uri)) {
             $parser = new HTMLPurifier_URIParser();
             $this->base = $parser->parse($base_uri);
             $this->defaultScheme = $this->base->scheme;
             if (is_null($this->host)) $this->host = $this->base->host;
         }
         if (is_null($this->defaultScheme)) $this->defaultScheme = $config->get('URI.DefaultScheme');
     }
 
     public function getDefaultScheme($config, $context)
     {
         return HTMLPurifier_URISchemeRegistry::instance()->getScheme($this->defaultScheme, $config, $context);
     }
 
     public function filter(&$uri, $config, $context)
     {
         foreach ($this->filters as $name => $f) {
             $result = $f->filter($uri, $config, $context);
             if (!$result) return false;
         }
         return true;
     }
 
     public function postFilter(&$uri, $config, $context)
     {
         foreach ($this->postFilters as $name => $f) {
             $result = $f->filter($uri, $config, $context);
             if (!$result) return false;
         }
         return true;
     }
 
 }
 
 // vim: et sw=4 sts=4