1: <?php
 2: /**
 3:  * Magento
 4:  *
 5:  * NOTICE OF LICENSE
 6:  *
 7:  * This source file is subject to the Open Software License (OSL 3.0)
 8:  * that is bundled with this package in the file LICENSE.txt.
 9:  * It is also available through the world-wide-web at this URL:
10:  * http://opensource.org/licenses/osl-3.0.php
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@magentocommerce.com so we can send you a copy immediately.
14:  *
15:  * DISCLAIMER
16:  *
17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
18:  * versions in the future. If you wish to customize Magento for your
19:  * needs please refer to http://www.magentocommerce.com for more information.
20:  *
21:  * @category    Mage
22:  * @package     Mage_Captcha
23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
25:  */
26: 
27: /**
28:  * Captcha block
29:  *
30:  * @category   Core
31:  * @package    Mage_Captcha
32:  * @author     Magento Core Team <core@magentocommerce.com>
33:  */
34: class Mage_Captcha_Block_Captcha_Zend extends Mage_Core_Block_Template
35: {
36:     protected $_template = 'captcha/zend.phtml';
37: 
38:     /**
39:      * @var string
40:      */
41:     protected $_captcha;
42: 
43:     /**
44:      * Returns template path
45:      *
46:      * @return string
47:      */
48:     public function getTemplate()
49:     {
50:         return $this->getIsAjax() ? '' : $this->_template;
51:     }
52: 
53:     /**
54:      * Returns URL to controller action which returns new captcha image
55:      *
56:      * @return string
57:      */
58:     public function getRefreshUrl()
59:     {
60:         return Mage::getUrl(
61:             Mage::app()->getStore()->isAdmin() ? 'adminhtml/refresh/refresh' : 'captcha/refresh',
62:             array('_secure' => Mage::app()->getStore()->isCurrentlySecure())
63:         );
64:     }
65: 
66:     /**
67:      * Renders captcha HTML (if required)
68:      *
69:      * @return string
70:      */
71:     protected function _toHtml()
72:     {
73:         if ($this->getCaptchaModel()->isRequired()) {
74:             $this->getCaptchaModel()->generate();
75:             return parent::_toHtml();
76:         }
77:         return '';
78:     }
79: 
80:     /**
81:      * Returns captcha model
82:      *
83:      * @return Mage_Captcha_Model_Abstract
84:      */
85:     public function getCaptchaModel()
86:     {
87:         return Mage::helper('captcha')->getCaptcha($this->getFormId());
88:     }
89: }
90: