Viewing file:  MigratingSessionHandler.php (3.16 KB) -rw-r--r--
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\HttpFoundation\Session\Storage\Handler;
/**
* Migrating session handler for migrating from one handler to another. It reads
* from the current handler and writes both the current and new ones.
*
* It ignores errors from the new handler.
*
* @author Ross Motley <ross.motley@amara.com>
* @author Oliver Radwell <oliver.radwell@amara.com>
*/
class MigratingSessionHandler implements \SessionHandlerInterface, \SessionUpdateTimestampHandlerInterface
{
private $currentHandler;
private $writeOnlyHandler;
public function __construct(\SessionHandlerInterface $currentHandler, \SessionHandlerInterface $writeOnlyHandler)
{
if (!$currentHandler instanceof \SessionUpdateTimestampHandlerInterface) {
$currentHandler = new StrictSessionHandler($currentHandler);
}
if (!$writeOnlyHandler instanceof \SessionUpdateTimestampHandlerInterface) {
$writeOnlyHandler = new StrictSessionHandler($writeOnlyHandler);
}
$this->currentHandler = $currentHandler;
$this->writeOnlyHandler = $writeOnlyHandler;
}
/**
* @return bool
*/
public function close()
{
$result = $this->currentHandler->close();
$this->writeOnlyHandler->close();
return $result;
}
/**
* @return bool
*/
public function destroy($sessionId)
{
$result = $this->currentHandler->destroy($sessionId);
$this->writeOnlyHandler->destroy($sessionId);
return $result;
}
/**
* @return bool
*/
public function gc($maxlifetime)
{
$result = $this->currentHandler->gc($maxlifetime);
$this->writeOnlyHandler->gc($maxlifetime);
return $result;
}
/**
* @return bool
*/
public function open($savePath, $sessionName)
{
$result = $this->currentHandler->open($savePath, $sessionName);
$this->writeOnlyHandler->open($savePath, $sessionName);
return $result;
}
/**
* @return string
*/
public function read($sessionId)
{
// No reading from new handler until switch-over
return $this->currentHandler->read($sessionId);
}
/**
* @return bool
*/
public function write($sessionId, $sessionData)
{
$result = $this->currentHandler->write($sessionId, $sessionData);
$this->writeOnlyHandler->write($sessionId, $sessionData);
return $result;
}
/**
* @return bool
*/
public function validateId($sessionId)
{
// No reading from new handler until switch-over
return $this->currentHandler->validateId($sessionId);
}
/**
* @return bool
*/
public function updateTimestamp($sessionId, $sessionData)
{
$result = $this->currentHandler->updateTimestamp($sessionId, $sessionData);
$this->writeOnlyHandler->updateTimestamp($sessionId, $sessionData);
return $result;
}
}
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