lib/htmlpurifier/HTMLPurifier/AttrDef/CSS/TextDecoration.php

   1 <?php
   2
   3 require_once 'HTMLPurifier/AttrDef.php';
   4
   5 /**
   6  * Validates the value for the CSS property text-decoration
   7  * @note This class could be generalized into a version that acts sort of
   8  *       like Enum except you can compound the allowed values.
   9  */
  10 class HTMLPurifier_AttrDef_CSS_TextDecoration extends HTMLPurifier_AttrDef
  11 {
  12
  13     /**
  14      * Lookup table of allowed values.
  15      * @protected
  16      */
  17     var $allowed_values = array(
  18         'line-through' => true,
  19         'overline' => true,
  20         'underline' => true
  21     );
  22
  23     function validate($string, $config, &$context) {
  24
  25         $string = strtolower($this->parseCDATA($string));
  26         $parts = explode(' ', $string);
  27         $final = '';
  28         foreach ($parts as $part) {
  29             if (isset($this->allowed_values[$part])) {
  30                 $final .= $part . ' ';
  31             }
  32         }
  33         $final = rtrim($final);
  34         if ($final === '') return false;
  35         return $final;
  36
  37     }
  38
  39 }
  40
  41 ?>