Magento: app/code/core/Mage/Adminhtml/Model/System/Config/Backend/Encrypted.php Source File

00001 <?php
00002 /**
00003  * Magento
00004  *
00005  * NOTICE OF LICENSE
00006  *
00007  * This source file is subject to the Open Software License (OSL 3.0)
00008  * that is bundled with this package in the file LICENSE.txt.
00009  * It is also available through the world-wide-web at this URL:
00010  * http://opensource.org/licenses/osl-3.0.php
00011  * If you did not receive a copy of the license and are unable to
00012  * obtain it through the world-wide-web, please send an email
00013  * to license@magentocommerce.com so we can send you a copy immediately.
00014  *
00015  * DISCLAIMER
00016  *
00017  * Do not edit or add to this file if you wish to upgrade Magento to newer
00018  * versions in the future. If you wish to customize Magento for your
00019  * needs please refer to http://www.magentocommerce.com for more information.
00020  *
00021  * @category   Mage
00022  * @package    Mage_Adminhtml
00023  * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
00024  * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
00025  */
00026 
00027 
00028 /**
00029  * Encrypted config field backend model
00030  *
00031  * @category   Mage
00032  * @package    Mage_Adminhtml
00033  */
00034 class Mage_Adminhtml_Model_System_Config_Backend_Encrypted extends Mage_Core_Model_Config_Data
00035 {
00036 
00037     /**
00038      * Decrypt value after loading
00039      *
00040      */
00041     protected function _afterLoad()
00042     {
00043         $value = (string)$this->getValue();
00044         if (!empty($value) && ($decrypted = Mage::helper('core')->decrypt($value))) {
00045             $this->setValue($decrypted);
00046         }
00047     }
00048 
00049     /**
00050      * Encrypt value before saving
00051      *
00052      */
00053     protected function _beforeSave()
00054     {
00055         $value = (string)$this->getValue();
00056         // don't change value, if an obscured value came
00057         if (preg_match('/^\*+$/', $this->getValue())) {
00058             $value = $this->getOldValue();
00059         }
00060         if (!empty($value) && ($encrypted = Mage::helper('core')->encrypt($value))) {
00061             $this->setValue($encrypted);
00062         }
00063     }
00064 
00065     /**
00066      * Get & decrypt old value from configuration
00067      *
00068      * @return string
00069      */
00070     public function getOldValue()
00071     {
00072         return Mage::helper('core')->decrypt(parent::getOldValue());
00073     }
00074 }