File indexing completed on 2024-05-12 06:02:04 

0001 <?php
0002 
0003 // must be called POST validation
0004 
0005 /**
0006  * Adds target="blank" to all outbound links.  This transform is
0007  * only attached if Attr.TargetBlank is TRUE.  This works regardless
0008  * of whether or not Attr.AllowedFrameTargets
0009  */
0010 class HTMLPurifier_AttrTransform_TargetBlank extends HTMLPurifier_AttrTransform
0011 {
0012     /**
0013      * @type HTMLPurifier_URIParser
0014      */
0015     private $parser;
0016 
0017     public function __construct()
0018     {
0019         $this->parser = new HTMLPurifier_URIParser();
0020     }
0021 
0022     /**
0023      * @param array $attr
0024      * @param HTMLPurifier_Config $config
0025      * @param HTMLPurifier_Context $context
0026      * @return array
0027      */
0028     public function transform($attr, $config, $context)
0029     {
0030         if (!isset($attr['href'])) {
0031             return $attr;
0032         }
0033 
0034         // XXX Kind of inefficient
0035         $url = $this->parser->parse($attr['href']);
0036         $scheme = $url->getSchemeObj($config, $context);
0037 
0038         if ($scheme->browsable && !$url->isBenign($config, $context)) {
0039             $attr['target'] = '_blank';
0040         }
0041         return $attr;
0042     }
0043 }
0044 
0045 // vim: et sw=4 sts=4