lib/htmlpurifier/HTMLPurifier/HTMLModule/Scripting.php

   1 <?php
   2
   3 /*
   4
   5 WARNING: THIS MODULE IS EXTREMELY DANGEROUS AS IT ENABLES INLINE SCRIPTING
   6 INSIDE HTML PURIFIER DOCUMENTS. USE ONLY WITH TRUSTED USER INPUT!!!
   7
   8 Usage:
   9
  10 require_once 'HTMLPurifier/HTMLModule/Scripting.php';
  11 $def =& $config->getHTMLDefinition(true); // get the raw version
  12 $def->manager->addModule('Scripting');
  13
  14 This must come before any other calls to getHTMLDefinition()
  15
  16 */
  17
  18 /**
  19  * Implements required attribute stipulation for <script>
  20  */
  21 class HTMLPurifier_AttrTransform_ScriptRequired extends HTMLPurifier_AttrTransform
  22 {
  23     function transform($attr, $config, &$context) {
  24         if (!isset($attr['type'])) {
  25             $attr['type'] = 'text/javascript';
  26         }
  27         return $attr;
  28     }
  29 }
  30
  31 /**
  32  * XHTML 1.1 Scripting module, defines elements that are used to contain
  33  * information pertaining to executable scripts or the lack of support
  34  * for executable scripts.
  35  * @note This module does not contain inline scripting elements
  36  */
  37 class HTMLPurifier_HTMLModule_Scripting extends HTMLPurifier_HTMLModule
  38 {
  39     var $name = 'Scripting';
  40     var $elements = array('script', 'noscript');
  41     var $content_sets = array('Block' => 'script | noscript', 'Inline' => 'script | noscript');
  42
  43     function HTMLPurifier_HTMLModule_Scripting() {
  44         // TODO: create custom child-definition for noscript that
  45         // auto-wraps stray #PCDATA in a similar manner to
  46         // blockquote's custom definition (we would use it but
  47         // blockquote's contents are optional while noscript's contents
  48         // are required)
  49         foreach ($this->elements as $element) {
  50             $this->info[$element] = new HTMLPurifier_ElementDef();
  51         }
  52         $this->info['noscript']->attr = array( 0 => array('Common') );
  53         $this->info['noscript']->content_model = 'Heading | List | Block';
  54         $this->info['noscript']->content_model_type = 'required';
  55         $this->info['script']->attr = array(
  56             'defer' => new HTMLPurifier_AttrDef_Enum(array('defer')),
  57             'src'   => new HTMLPurifier_AttrDef_URI(true),
  58             'type'  => new HTMLPurifier_AttrDef_Enum(array('text/javascript'))
  59         );
  60         $this->info['script']->content_model = '#PCDATA';
  61         $this->info['script']->content_model_type = 'optional';
  62         $this->info['script']->attr_transform_post['type'] =
  63             new HTMLPurifier_AttrTransform_ScriptRequired();
  64     }
  65 }
  66
  67 ?>