git.maemo.org Git - speedfreak/blob - Server/system/libraries/drivers/Captcha/Riddle.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * Captcha driver for "riddle" style.
   4  *
   5  * $Id: Riddle.php 3769 2008-12-15 00:48:56Z zombor $
   6  *
   7  * @package    Captcha
   8  * @author     Kohana Team
   9  * @copyright  (c) 2007-2008 Kohana Team
  10  * @license    http://kohanaphp.com/license.html
  11  */
  12 class Captcha_Riddle_Driver extends Captcha_Driver {
  13
  14         private $riddle;
  15
  16         /**
  17          * Generates a new Captcha challenge.
  18          *
  19          * @return  string  the challenge answer
  20          */
  21         public function generate_challenge()
  22         {
  23                 // Load riddles from the current language
  24                 $riddles = Kohana::lang('captcha.riddles');
  25
  26                 // Pick a random riddle
  27                 $riddle = $riddles[array_rand($riddles)];
  28
  29                 // Store the question for output
  30                 $this->riddle = $riddle[0];
  31
  32                 // Return the answer
  33                 return $riddle[1];
  34         }
  35
  36         /**
  37          * Outputs the Captcha riddle.
  38          *
  39          * @param   boolean  html output
  40          * @return  mixed
  41          */
  42         public function render($html)
  43         {
  44                 return $this->riddle;
  45         }
  46
  47 } // End Captcha Riddle Driver Class