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_Adminhtml
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: /**
29: * Encrypted config field backend model
30: *
31: * @category Mage
32: * @package Mage_Adminhtml
33: */
34: class Mage_Adminhtml_Model_System_Config_Backend_Encrypted extends Mage_Core_Model_Config_Data
35: {
36:
37: /**
38: * Decrypt value after loading
39: *
40: */
41: protected function _afterLoad()
42: {
43: $value = (string)$this->getValue();
44: if (!empty($value) && ($decrypted = Mage::helper('core')->decrypt($value))) {
45: $this->setValue($decrypted);
46: }
47: }
48:
49: /**
50: * Encrypt value before saving
51: *
52: */
53: protected function _beforeSave()
54: {
55: $value = (string)$this->getValue();
56: // don't change value, if an obscured value came
57: if (preg_match('/^\*+$/', $this->getValue())) {
58: $value = $this->getOldValue();
59: }
60: if (!empty($value) && ($encrypted = Mage::helper('core')->encrypt($value))) {
61: $this->setValue($encrypted);
62: }
63: }
64:
65: /**
66: * Get & decrypt old value from configuration
67: *
68: * @return string
69: */
70: public function getOldValue()
71: {
72: return Mage::helper('core')->decrypt(parent::getOldValue());
73: }
74: }
75: