Viewing file:  WriteCheckSessionHandler.php (1.98 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;
/**
* Wraps another SessionHandlerInterface to only write the session when it has been modified.
*
* @author Adrien Brault <adrien.brault@gmail.com>
*/
class WriteCheckSessionHandler implements \SessionHandlerInterface
{
/**
* @var \SessionHandlerInterface
*/
private $wrappedSessionHandler;
/**
* @var array sessionId => session
*/
private $readSessions;
public function __construct(\SessionHandlerInterface $wrappedSessionHandler)
{
$this->wrappedSessionHandler = $wrappedSessionHandler;
}
/**
* {@inheritdoc}
*/
public function close()
{
return $this->wrappedSessionHandler->close();
}
/**
* {@inheritdoc}
*/
public function destroy($sessionId)
{
return $this->wrappedSessionHandler->destroy($sessionId);
}
/**
* {@inheritdoc}
*/
public function gc($maxLifetime)
{
return $this->wrappedSessionHandler->gc($maxLifetime);
}
/**
* {@inheritdoc}
*/
public function open($savePath, $sessionId)
{
return $this->wrappedSessionHandler->open($savePath, $sessionId);
}
/**
* {@inheritdoc}
*/
public function read($sessionId)
{
$session = $this->wrappedSessionHandler->read($sessionId);
$this->readSessions[$sessionId] = $session;
return $session;
}
/**
* {@inheritdoc}
*/
public function write($sessionId, $sessionData)
{
if (isset($this->readSessions[$sessionId]) && $sessionData === $this->readSessions[$sessionId]) {
return true;
}
return $this->wrappedSessionHandler->write($sessionId, $sessionData);
}
}
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