File indexing completed on 2024-12-22 05:36:19

 <?php
 
 // must be called POST validation
 
 /**
  * Transform that supplies default values for the src and alt attributes
  * in img tags, as well as prevents the img tag from being removed
  * because of a missing alt tag. This needs to be registered as both
  * a pre and post attribute transform.
  */
 class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
 {
 
     /**
      * @param array $attr
      * @param HTMLPurifier_Config $config
      * @param HTMLPurifier_Context $context
      * @return array
      */
     public function transform($attr, $config, $context)
     {
         $src = true;
         if (!isset($attr['src'])) {
             if ($config->get('Core.RemoveInvalidImg')) {
                 return $attr;
             }
             $attr['src'] = $config->get('Attr.DefaultInvalidImage');
             $src = false;
         }
 
         if (!isset($attr['alt'])) {
             if ($src) {
                 $alt = $config->get('Attr.DefaultImageAlt');
                 if ($alt === null) {
                     $attr['alt'] = basename($attr['src']);
                 } else {
                     $attr['alt'] = $alt;
                 }
             } else {
                 $attr['alt'] = $config->get('Attr.DefaultInvalidImageAlt');
             }
         }
         return $attr;
     }
 }
 
 // vim: et sw=4 sts=4