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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpFoundation\Session\Storage;
  13  
  14  use Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeSessionHandler;
  15  use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
  16  
  17  /**
  18   * Allows session to be started by PHP and managed by Symfony.
  19   *
  20   * @author Drak <drak@zikula.org>
  21   */
  22  class PhpBridgeSessionStorage extends NativeSessionStorage
  23  {
  24      /**
  25       * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $handler
  26       * @param MetadataBag                                                      $metaBag MetadataBag
  27       */
  28      public function __construct($handler = null, MetadataBag $metaBag = null)
  29      {
  30          $this->setMetadataBag($metaBag);
  31          $this->setSaveHandler($handler);
  32      }
  33  
  34      /**
  35       * {@inheritdoc}
  36       */
  37      public function start()
  38      {
  39          if ($this->started) {
  40              return true;
  41          }
  42  
  43          $this->loadSession();
  44          if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
  45              // This condition matches only PHP 5.3 + internal save handlers
  46              $this->saveHandler->setActive(true);
  47          }
  48  
  49          return true;
  50      }
  51  
  52      /**
  53       * {@inheritdoc}
  54       */
  55      public function clear()
  56      {
  57          // clear out the bags and nothing else that may be set
  58          // since the purpose of this driver is to share a handler
  59          foreach ($this->bags as $bag) {
  60              $bag->clear();
  61          }
  62  
  63          // reconnect the bags to the session
  64          $this->loadSession();
  65      }
  66  }