592 Zeilen
17 KiB
PHP
592 Zeilen
17 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-webat this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Session
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* @see Zend_Session
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*/
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require_once 'Zend/Session.php';
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/**
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* @see Zend_Db_Table_Abstract
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*/
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require_once 'Zend/Db/Table/Abstract.php';
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/**
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* @see Zend_Db_Table_Row_Abstract
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*/
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require_once 'Zend/Db/Table/Row/Abstract.php';
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/**
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* @see Zend_Config
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*/
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require_once 'Zend/Config.php';
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/**
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* Zend_Session_SaveHandler_DbTable
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*
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* @category Zend
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* @package Zend_Session
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* @subpackage SaveHandler
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Session_SaveHandler_DbTable
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extends Zend_Db_Table_Abstract
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implements Zend_Session_SaveHandler_Interface
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{
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const PRIMARY_ASSIGNMENT = 'primaryAssignment';
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const PRIMARY_ASSIGNMENT_SESSION_SAVE_PATH = 'sessionSavePath';
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const PRIMARY_ASSIGNMENT_SESSION_NAME = 'sessionName';
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const PRIMARY_ASSIGNMENT_SESSION_ID = 'sessionId';
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const MODIFIED_COLUMN = 'modifiedColumn';
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const LIFETIME_COLUMN = 'lifetimeColumn';
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const DATA_COLUMN = 'dataColumn';
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const LIFETIME = 'lifetime';
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const OVERRIDE_LIFETIME = 'overrideLifetime';
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const PRIMARY_TYPE_NUM = 'PRIMARY_TYPE_NUM';
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const PRIMARY_TYPE_PRIMARYNUM = 'PRIMARY_TYPE_PRIMARYNUM';
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const PRIMARY_TYPE_ASSOC = 'PRIMARY_TYPE_ASSOC';
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const PRIMARY_TYPE_WHERECLAUSE = 'PRIMARY_TYPE_WHERECLAUSE';
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/**
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* Session table primary key value assignment
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*
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* @var array
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*/
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protected $_primaryAssignment = null;
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/**
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* Session table last modification time column
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*
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* @var string
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*/
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protected $_modifiedColumn = null;
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/**
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* Session table lifetime column
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*
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* @var string
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*/
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protected $_lifetimeColumn = null;
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/**
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* Session table data column
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*
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* @var string
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*/
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protected $_dataColumn = null;
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/**
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* Session lifetime
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*
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* @var int
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*/
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protected $_lifetime = false;
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/**
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* Whether or not the lifetime of an existing session should be overridden
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*
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* @var boolean
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*/
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protected $_overrideLifetime = false;
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/**
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* Session save path
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*
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* @var string
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*/
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protected $_sessionSavePath;
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/**
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* Session name
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*
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* @var string
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*/
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protected $_sessionName;
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/**
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* Constructor
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*
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* $config is an instance of Zend_Config or an array of key/value pairs containing configuration options for
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* Zend_Session_SaveHandler_DbTable and Zend_Db_Table_Abstract. These are the configuration options for
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* Zend_Session_SaveHandler_DbTable:
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*
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* primaryAssignment => (string|array) Session table primary key value assignment
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* (optional; default: 1 => sessionId) You have to assign a value to each primary key of your session table.
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* The value of this configuration option is either a string if you have only one primary key or an array if
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* you have multiple primary keys. The array consists of numeric keys starting at 1 and string values. There
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* are some values which will be replaced by session information:
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*
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* sessionId => The id of the current session
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* sessionName => The name of the current session
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* sessionSavePath => The save path of the current session
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*
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* NOTE: One of your assignments MUST contain 'sessionId' as value!
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*
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* modifiedColumn => (string) Session table last modification time column
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*
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* lifetimeColumn => (string) Session table lifetime column
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*
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* dataColumn => (string) Session table data column
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*
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* lifetime => (integer) Session lifetime (optional; default: ini_get('session.gc_maxlifetime'))
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*
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* overrideLifetime => (boolean) Whether or not the lifetime of an existing session should be overridden
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* (optional; default: false)
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*
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* @param Zend_Config|array $config User-provided configuration
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* @return void
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* @throws Zend_Session_SaveHandler_Exception
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*/
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public function __construct($config)
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{
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if ($config instanceof Zend_Config) {
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$config = $config->toArray();
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} else if (!is_array($config)) {
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/**
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* @see Zend_Session_SaveHandler_Exception
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*/
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require_once 'Zend/Session/SaveHandler/Exception.php';
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throw new Zend_Session_SaveHandler_Exception(
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'$config must be an instance of Zend_Config or array of key/value pairs containing '
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. 'configuration options for Zend_Session_SaveHandler_DbTable and Zend_Db_Table_Abstract.');
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}
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foreach ($config as $key => $value) {
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do {
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switch ($key) {
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case self::PRIMARY_ASSIGNMENT:
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$this->_primaryAssignment = $value;
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break;
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case self::MODIFIED_COLUMN:
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$this->_modifiedColumn = (string) $value;
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break;
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case self::LIFETIME_COLUMN:
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$this->_lifetimeColumn = (string) $value;
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break;
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case self::DATA_COLUMN:
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$this->_dataColumn = (string) $value;
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break;
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case self::LIFETIME:
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$this->setLifetime($value);
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break;
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case self::OVERRIDE_LIFETIME:
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$this->setOverrideLifetime($value);
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break;
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default:
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// unrecognized options passed to parent::__construct()
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break 2;
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}
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unset($config[$key]);
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} while (false);
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}
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parent::__construct($config);
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}
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/**
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* Destructor
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*
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* @return void
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*/
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public function __destruct()
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{
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Zend_Session::writeClose();
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}
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/**
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* Set session lifetime and optional whether or not the lifetime of an existing session should be overridden
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*
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* $lifetime === false resets lifetime to session.gc_maxlifetime
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*
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* @param int $lifetime
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* @param boolean $overrideLifetime (optional)
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* @return Zend_Session_SaveHandler_DbTable
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*/
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public function setLifetime($lifetime, $overrideLifetime = null)
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{
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if ($lifetime < 0) {
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/**
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* @see Zend_Session_SaveHandler_Exception
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*/
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require_once 'Zend/Session/SaveHandler/Exception.php';
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throw new Zend_Session_SaveHandler_Exception();
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} else if (empty($lifetime)) {
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$this->_lifetime = (int) ini_get('session.gc_maxlifetime');
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} else {
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$this->_lifetime = (int) $lifetime;
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}
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if ($overrideLifetime != null) {
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$this->setOverrideLifetime($overrideLifetime);
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}
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return $this;
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}
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/**
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* Retrieve session lifetime
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*
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* @return int
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*/
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public function getLifetime()
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{
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return $this->_lifetime;
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}
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/**
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* Set whether or not the lifetime of an existing session should be overridden
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*
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* @param boolean $overrideLifetime
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* @return Zend_Session_SaveHandler_DbTable
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*/
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public function setOverrideLifetime($overrideLifetime)
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{
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$this->_overrideLifetime = (boolean) $overrideLifetime;
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return $this;
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}
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/**
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* Retrieve whether or not the lifetime of an existing session should be overridden
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*
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* @return boolean
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*/
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public function getOverrideLifetime()
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{
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return $this->_overrideLifetime;
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}
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/**
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* Open Session
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*
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* @param string $save_path
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* @param string $name
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* @return boolean
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*/
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public function open($save_path, $name)
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{
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$this->_sessionSavePath = $save_path;
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$this->_sessionName = $name;
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return true;
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}
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/**
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* Close session
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*
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* @return boolean
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*/
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public function close()
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{
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return true;
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}
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/**
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* Read session data
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*
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* @param string $id
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* @return string
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*/
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public function read($id)
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{
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$return = '';
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$rows = call_user_func_array(array(&$this, 'find'), $this->_getPrimary($id));
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if (count($rows)) {
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if ($this->_getExpirationTime($row = $rows->current()) > time()) {
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$return = $row->{$this->_dataColumn};
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} else {
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$this->destroy($id);
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}
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}
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return $return;
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}
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/**
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* Write session data
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*
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* @param string $id
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* @param string $data
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* @return boolean
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*/
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public function write($id, $data)
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{
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$return = false;
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$data = array($this->_modifiedColumn => time(),
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$this->_dataColumn => (string) $data);
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$rows = call_user_func_array(array(&$this, 'find'), $this->_getPrimary($id));
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if (count($rows)) {
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$data[$this->_lifetimeColumn] = $this->_getLifetime($rows->current());
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if ($this->update($data, $this->_getPrimary($id, self::PRIMARY_TYPE_WHERECLAUSE))) {
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$return = true;
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}
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} else {
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$data[$this->_lifetimeColumn] = $this->_lifetime;
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if ($this->insert(array_merge($this->_getPrimary($id, self::PRIMARY_TYPE_ASSOC), $data))) {
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$return = true;
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}
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}
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return $return;
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}
|
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|
|
|
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/**
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* Destroy session
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*
|
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|
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* @param string $id
|
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* @return boolean
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*/
|
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public function destroy($id)
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{
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$return = false;
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if ($this->delete($this->_getPrimary($id, self::PRIMARY_TYPE_WHERECLAUSE))) {
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$return = true;
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}
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return $return;
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}
|
||
|
|
|
||
|
|
/**
|
||
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* Garbage Collection
|
||
|
|
*
|
||
|
|
* @param int $maxlifetime
|
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|
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* @return true
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*/
|
||
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public function gc($maxlifetime)
|
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{
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$this->delete($this->getAdapter()->quoteIdentifier($this->_modifiedColumn, true) . ' + '
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. $this->getAdapter()->quoteIdentifier($this->_lifetimeColumn, true) . ' < '
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. $this->getAdapter()->quote(time()));
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return true;
|
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}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Calls other protected methods for individual setup tasks and requirement checks
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function _setup()
|
||
|
|
{
|
||
|
|
parent::_setup();
|
||
|
|
|
||
|
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$this->_setupPrimaryAssignment();
|
||
|
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$this->setLifetime($this->_lifetime);
|
||
|
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|
||
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$this->_checkRequiredColumns();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize table and schema names
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
* @throws Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
protected function _setupTableName()
|
||
|
|
{
|
||
|
|
if (empty($this->_name) && basename(($this->_name = session_save_path())) != $this->_name) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception('session.save_path is a path and not a table name.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($this->_name, '.')) {
|
||
|
|
list($this->_schema, $this->_name) = explode('.', $this->_name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialize session table primary key value assignment
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
* @throws Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
protected function _setupPrimaryAssignment()
|
||
|
|
{
|
||
|
|
if ($this->_primaryAssignment === null) {
|
||
|
|
$this->_primaryAssignment = array(1 => self::PRIMARY_ASSIGNMENT_SESSION_ID);
|
||
|
|
} else if (!is_array($this->_primaryAssignment)) {
|
||
|
|
$this->_primaryAssignment = array(1 => (string) $this->_primaryAssignment);
|
||
|
|
} else if (isset($this->_primaryAssignment[0])) {
|
||
|
|
array_unshift($this->_primaryAssignment, null);
|
||
|
|
|
||
|
|
unset($this->_primaryAssignment[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (count($this->_primaryAssignment) !== count($this->_primary)) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception(
|
||
|
|
"Value for configuration option '" . self::PRIMARY_ASSIGNMENT . "' must have an assignment "
|
||
|
|
. "for each session table primary key.");
|
||
|
|
} else if (!in_array(self::PRIMARY_ASSIGNMENT_SESSION_ID, $this->_primaryAssignment)) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception(
|
||
|
|
"Value for configuration option '" . self::PRIMARY_ASSIGNMENT . "' must have an assignment "
|
||
|
|
. "for the session id ('" . self::PRIMARY_ASSIGNMENT_SESSION_ID . "').");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check for required session table columns
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
* @throws Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
protected function _checkRequiredColumns()
|
||
|
|
{
|
||
|
|
if ($this->_modifiedColumn === null) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception(
|
||
|
|
"Configuration must define '" . self::MODIFIED_COLUMN . "' which names the "
|
||
|
|
. "session table last modification time column.");
|
||
|
|
} else if ($this->_lifetimeColumn === null) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception(
|
||
|
|
"Configuration must define '" . self::LIFETIME_COLUMN . "' which names the "
|
||
|
|
. "session table lifetime column.");
|
||
|
|
} else if ($this->_dataColumn === null) {
|
||
|
|
/**
|
||
|
|
* @see Zend_Session_SaveHandler_Exception
|
||
|
|
*/
|
||
|
|
require_once 'Zend/Session/SaveHandler/Exception.php';
|
||
|
|
|
||
|
|
throw new Zend_Session_SaveHandler_Exception(
|
||
|
|
"Configuration must define '" . self::DATA_COLUMN . "' which names the "
|
||
|
|
. "session table data column.");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve session table primary key values
|
||
|
|
*
|
||
|
|
* @param string $id
|
||
|
|
* @param string $type (optional; default: self::PRIMARY_TYPE_NUM)
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected function _getPrimary($id, $type = null)
|
||
|
|
{
|
||
|
|
$this->_setupPrimaryKey();
|
||
|
|
|
||
|
|
if ($type === null) {
|
||
|
|
$type = self::PRIMARY_TYPE_NUM;
|
||
|
|
}
|
||
|
|
|
||
|
|
$primaryArray = array();
|
||
|
|
|
||
|
|
foreach ($this->_primary as $index => $primary) {
|
||
|
|
switch ($this->_primaryAssignment[$index]) {
|
||
|
|
case self::PRIMARY_ASSIGNMENT_SESSION_SAVE_PATH:
|
||
|
|
$value = $this->_sessionSavePath;
|
||
|
|
break;
|
||
|
|
case self::PRIMARY_ASSIGNMENT_SESSION_NAME:
|
||
|
|
$value = $this->_sessionName;
|
||
|
|
break;
|
||
|
|
case self::PRIMARY_ASSIGNMENT_SESSION_ID:
|
||
|
|
$value = (string) $id;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
$value = (string) $this->_primaryAssignment[$index];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch ((string) $type) {
|
||
|
|
case self::PRIMARY_TYPE_PRIMARYNUM:
|
||
|
|
$primaryArray[$index] = $value;
|
||
|
|
break;
|
||
|
|
case self::PRIMARY_TYPE_ASSOC:
|
||
|
|
$primaryArray[$primary] = $value;
|
||
|
|
break;
|
||
|
|
case self::PRIMARY_TYPE_WHERECLAUSE:
|
||
|
|
$primaryArray[] = $this->getAdapter()->quoteIdentifier($primary, true) . ' = '
|
||
|
|
. $this->getAdapter()->quote($value);
|
||
|
|
break;
|
||
|
|
case self::PRIMARY_TYPE_NUM:
|
||
|
|
default:
|
||
|
|
$primaryArray[] = $value;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $primaryArray;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve session lifetime considering Zend_Session_SaveHandler_DbTable::OVERRIDE_LIFETIME
|
||
|
|
*
|
||
|
|
* @param Zend_Db_Table_Row_Abstract $row
|
||
|
|
* @return int
|
||
|
|
*/
|
||
|
|
protected function _getLifetime(Zend_Db_Table_Row_Abstract $row)
|
||
|
|
{
|
||
|
|
$return = $this->_lifetime;
|
||
|
|
|
||
|
|
if (!$this->_overrideLifetime) {
|
||
|
|
$return = (int) $row->{$this->_lifetimeColumn};
|
||
|
|
}
|
||
|
|
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve session expiration time
|
||
|
|
*
|
||
|
|
* @param Zend_Db_Table_Row_Abstract $row
|
||
|
|
* @return int
|
||
|
|
*/
|
||
|
|
protected function _getExpirationTime(Zend_Db_Table_Row_Abstract $row)
|
||
|
|
{
|
||
|
|
return (int) $row->{$this->_modifiedColumn} + $this->_getLifetime($row);
|
||
|
|
}
|
||
|
|
}
|