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_Install 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 * Abstract installer model 00030 * 00031 * @category Mage 00032 * @package Mage_Install 00033 * @author Magento Core Team <core@magentocommerce.com> 00034 */ 00035 class Mage_Install_Model_Installer_Abstract 00036 { 00037 /** 00038 * Installer singleton 00039 * 00040 * @var Mage_Install_Model_Installer 00041 */ 00042 protected $_installer; 00043 00044 /** 00045 * Get installer singleton 00046 * 00047 * @return Mage_Install_Model_Installer 00048 */ 00049 protected function _getInstaller() 00050 { 00051 if (is_null($this->_installer)) { 00052 $this->_installer = Mage::getSingleton('install/installer'); 00053 } 00054 return $this->_installer; 00055 } 00056 00057 /** 00058 * Validate session storage value (files or db) 00059 * If empty, will return 'files' 00060 * 00061 * @param string $value 00062 * @return string 00063 * @throws Exception 00064 */ 00065 protected function _checkSessionSave($value) 00066 { 00067 if (empty($value)) { 00068 return 'files'; 00069 } 00070 if (!in_array($value, array('files', 'db'), true)) { 00071 throw new Exception('session_save value must be "files" or "db".'); 00072 } 00073 return $value; 00074 } 00075 00076 /** 00077 * Validate admin frontname value. 00078 * If empty, "admin" will be returned 00079 * 00080 * @param string $value 00081 * @return string 00082 * @throws Exception 00083 */ 00084 protected function _checkAdminFrontname($value) 00085 { 00086 if (empty($value)) { 00087 return 'admin'; 00088 } 00089 if (!preg_match('/^[a-z]+[a-z0-9_]+$/i', $value)) { 00090 throw new Exception('admin_frontname value must contain only letters (a-z or A-Z), numbers (0-9) or underscore(_), first character should be a letter.'); 00091 } 00092 return $value; 00093 } 00094 }