PhpBridgeSessionStorage.php

<?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;

use Symfony\Component\HttpFoundation\Session\Storage\MetadataBag;
use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
use Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeSessionHandler;

/**
 * Allows session to be started by PHP and managed by Symfony2
 *
 * @author Drak <drak@zikula.org>
 */
class PhpBridgeSessionStorage extends NativeSessionStorage {

  /**
   * Constructor.
   *
   * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $handler
   * @param MetadataBag                                                      $metaBag MetadataBag
   */
  public function __construct($handler = null, MetadataBag $metaBag = null) {
    $this
      ->setMetadataBag($metaBag);
    $this
      ->setSaveHandler($handler);
  }

  /**
   * {@inheritdoc}
   */
  public function start() {
    if ($this->started && !$this->closed) {
      return true;
    }
    $this
      ->loadSession();
    if (!$this->saveHandler
      ->isWrapper() && !$this->saveHandler
      ->isSessionHandlerInterface()) {

      // This condition matches only PHP 5.3 + internal save handlers
      $this->saveHandler
        ->setActive(true);
    }
    return true;
  }

  /**
   * {@inheritdoc}
   */
  public function clear() {

    // clear out the bags and nothing else that may be set
    // since the purpose of this driver is to share a handler
    foreach ($this->bags as $bag) {
      $bag
        ->clear();
    }

    // reconnect the bags to the session
    $this
      ->loadSession();
  }

}