library/HTMLPurifier/HTMLModule/Image.php

   1 <?php
   2
   3 /**
   4  * XHTML 1.1 Image Module provides basic image embedding.
   5  * @note There is specialized code for removing empty images in
   6  *       HTMLPurifier_Strategy_RemoveForeignElements
   7  */
   8 class HTMLPurifier_HTMLModule_Image extends HTMLPurifier_HTMLModule
   9 {
  10
  11     /**
  12      * @type string
  13      */
  14     public $name = 'Image';
  15
  16     /**
  17      * @param HTMLPurifier_Config $config
  18      */
  19     public function setup($config)
  20     {
  21         $max = $config->get('HTML.MaxImgLength');
  22         $img = $this->addElement(
  23             'img',
  24             'Inline',
  25             'Empty',
  26             'Common',
  27             array(
  28                 'alt*' => 'Text',
  29                 // According to the spec, it's Length, but percents can
  30                 // be abused, so we allow only Pixels.
  31                 'height' => 'Pixels#' . $max,
  32                 'width' => 'Pixels#' . $max,
  33                 'longdesc' => 'URI',
  34                 'src*' => new HTMLPurifier_AttrDef_URI(true), // embedded
  35             )
  36         );
  37         if ($max === null || $config->get('HTML.Trusted')) {
  38             $img->attr['height'] =
  39             $img->attr['width'] = 'Length';
  40         }
  41
  42         // kind of strange, but splitting things up would be inefficient
  43         $img->attr_transform_pre[] =
  44         $img->attr_transform_post[] =
  45             new HTMLPurifier_AttrTransform_ImgRequired();
  46     }
  47 }
  48
  49 // vim: et sw=4 sts=4