library/HTMLPurifier/AttrTransform/NameSync.php

   1 <?php
   2
   3 /**
   4  * Post-transform that performs validation to the name attribute; if
   5  * it is present with an equivalent id attribute, it is passed through;
   6  * otherwise validation is performed.
   7  */
   8 class HTMLPurifier_AttrTransform_NameSync extends HTMLPurifier_AttrTransform
   9 {
  10
  11     public function __construct()
  12     {
  13         $this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
  14     }
  15
  16     /**
  17      * @param array $attr
  18      * @param HTMLPurifier_Config $config
  19      * @param HTMLPurifier_Context $context
  20      * @return array
  21      */
  22     public function transform($attr, $config, $context)
  23     {
  24         if (!isset($attr['name'])) {
  25             return $attr;
  26         }
  27         $name = $attr['name'];
  28         if (isset($attr['id']) && $attr['id'] === $name) {
  29             return $attr;
  30         }
  31         $result = $this->idDef->validate($name, $config, $context);
  32         if ($result === false) {
  33             unset($attr['name']);
  34         } else {
  35             $attr['name'] = $result;
  36         }
  37         return $attr;
  38     }
  39 }
  40
  41 // vim: et sw=4 sts=4