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         $this->idDef = new HTMLPurifier_AttrDef_HTML_ID();
  13     }
  14
  15     public function transform($attr, $config, $context) {
  16         if (!isset($attr['name'])) return $attr;
  17         $name = $attr['name'];
  18         if (isset($attr['id']) && $attr['id'] === $name) return $attr;
  19         $result = $this->idDef->validate($name, $config, $context);
  20         if ($result === false) unset($attr['name']);
  21         else $attr['name'] = $result;
  22         return $attr;
  23     }
  24
  25 }
  26
  27 // vim: et sw=4 sts=4