169 Zeilen
3,9 KiB
PHP
169 Zeilen
3,9 KiB
PHP
<?php
|
|
/**
|
|
* Zend Framework
|
|
*
|
|
* LICENSE
|
|
*
|
|
* This source file is subject to the new BSD license that is bundled
|
|
* with this package in the file LICENSE.txt.
|
|
* It is also available through the world-wide-web at this URL:
|
|
* http://framework.zend.com/license/new-bsd
|
|
* If you did not receive a copy of the license and are unable to
|
|
* obtain it through the world-wide-web, please send an email
|
|
* to license@zend.com so we can send you a copy immediately.
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Auth
|
|
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
* @version $Id$
|
|
*/
|
|
|
|
|
|
/**
|
|
* @category Zend
|
|
* @package Zend_Auth
|
|
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
|
|
* @license http://framework.zend.com/license/new-bsd New BSD License
|
|
*/
|
|
class Zend_Auth
|
|
{
|
|
/**
|
|
* Singleton instance
|
|
*
|
|
* @var Zend_Auth
|
|
*/
|
|
protected static $_instance = null;
|
|
|
|
/**
|
|
* Persistent storage handler
|
|
*
|
|
* @var Zend_Auth_Storage_Interface
|
|
*/
|
|
protected $_storage = null;
|
|
|
|
/**
|
|
* Singleton pattern implementation makes "new" unavailable
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function __construct()
|
|
{}
|
|
|
|
/**
|
|
* Singleton pattern implementation makes "clone" unavailable
|
|
*
|
|
* @return void
|
|
*/
|
|
protected function __clone()
|
|
{}
|
|
|
|
/**
|
|
* Returns an instance of Zend_Auth
|
|
*
|
|
* Singleton pattern implementation
|
|
*
|
|
* @return Zend_Auth Provides a fluent interface
|
|
*/
|
|
public static function getInstance()
|
|
{
|
|
if (null === self::$_instance) {
|
|
self::$_instance = new self();
|
|
}
|
|
|
|
return self::$_instance;
|
|
}
|
|
|
|
/**
|
|
* Returns the persistent storage handler
|
|
*
|
|
* Session storage is used by default unless a different storage adapter has been set.
|
|
*
|
|
* @return Zend_Auth_Storage_Interface
|
|
*/
|
|
public function getStorage()
|
|
{
|
|
if (null === $this->_storage) {
|
|
/**
|
|
* @see Zend_Auth_Storage_Session
|
|
*/
|
|
require_once 'Zend/Auth/Storage/Session.php';
|
|
$this->setStorage(new Zend_Auth_Storage_Session());
|
|
}
|
|
|
|
return $this->_storage;
|
|
}
|
|
|
|
/**
|
|
* Sets the persistent storage handler
|
|
*
|
|
* @param Zend_Auth_Storage_Interface $storage
|
|
* @return Zend_Auth Provides a fluent interface
|
|
*/
|
|
public function setStorage(Zend_Auth_Storage_Interface $storage)
|
|
{
|
|
$this->_storage = $storage;
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Authenticates against the supplied adapter
|
|
*
|
|
* @param Zend_Auth_Adapter_Interface $adapter
|
|
* @return Zend_Auth_Result
|
|
*/
|
|
public function authenticate(Zend_Auth_Adapter_Interface $adapter)
|
|
{
|
|
$result = $adapter->authenticate();
|
|
|
|
/**
|
|
* ZF-7546 - prevent multiple succesive calls from storing inconsistent results
|
|
* Ensure storage has clean state
|
|
*/
|
|
if ($this->hasIdentity()) {
|
|
$this->clearIdentity();
|
|
}
|
|
|
|
if ($result->isValid()) {
|
|
$this->getStorage()->write($result->getIdentity());
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Returns true if and only if an identity is available from storage
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function hasIdentity()
|
|
{
|
|
return !$this->getStorage()->isEmpty();
|
|
}
|
|
|
|
/**
|
|
* Returns the identity from storage or null if no identity is available
|
|
*
|
|
* @return mixed|null
|
|
*/
|
|
public function getIdentity()
|
|
{
|
|
$storage = $this->getStorage();
|
|
|
|
if ($storage->isEmpty()) {
|
|
return null;
|
|
}
|
|
|
|
return $storage->read();
|
|
}
|
|
|
|
/**
|
|
* Clears the identity from persistent storage
|
|
*
|
|
* @return void
|
|
*/
|
|
public function clearIdentity()
|
|
{
|
|
$this->getStorage()->clear();
|
|
}
|
|
}
|