library/Zend/Captcha/Figlet.php

   1 <?php
   2 /**
   3  * Zend Framework
   4  *
   5  * LICENSE
   6  *
   7  * This source file is subject to the new BSD license that is bundled
   8  * with this package in the file LICENSE.txt.
   9  * It is also available through the world-wide-web at this URL:
  10  * http://framework.zend.com/license/new-bsd
  11  * If you did not receive a copy of the license and are unable to
  12  * obtain it through the world-wide-web, please send an email
  13  * to license@zend.com so we can send you a copy immediately.
  14  *
  15  * @category   Zend
  16  * @package    Zend_Captcha
  17  * @subpackage Adapter
  18  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  19  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  20  */
  21
  22 /** @see Zend_Captcha_Word */
  23 require_once 'Zend/Captcha/Word.php';
  24
  25 /** @see Zend_Text_Figlet */
  26 require_once 'Zend/Text/Figlet.php';
  27
  28 /**
  29  * Captcha based on figlet text rendering service
  30  *
  31  * Note that this engine seems not to like numbers
  32  *
  33  * @category   Zend
  34  * @package    Zend_Captcha
  35  * @subpackage Adapter
  36  * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  37  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  38  * @version    $Id$
  39  */
  40 class Zend_Captcha_Figlet extends Zend_Captcha_Word
  41 {
  42     /**
  43      * Figlet text renderer
  44      *
  45      * @var Zend_Text_Figlet
  46      */
  47     protected $_figlet;
  48
  49     /**
  50      * Constructor
  51      *
  52      * @param  null|string|array|Zend_Config $options
  53      * @return void
  54      */
  55     public function __construct($options = null)
  56     {
  57         parent::__construct($options);
  58         $this->_figlet = new Zend_Text_Figlet($options);
  59     }
  60
  61     /**
  62      * Generate new captcha
  63      *
  64      * @return string
  65      */
  66     public function generate()
  67     {
  68         $this->_useNumbers = false;
  69         return parent::generate();
  70     }
  71
  72     /**
  73      * Display the captcha
  74      *
  75      * @param Zend_View_Interface $view
  76      * @param mixed $element
  77      * @return string
  78      */
  79     public function render(Zend_View_Interface $view = null, $element = null)
  80     {
  81         return '<pre>'
  82              . $this->_figlet->render($this->getWord())
  83              . "</pre>\n";
  84     }
  85 }