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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\Proxy\AbstractProxy;
  15  use Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeSessionHandler;
  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       * Constructor.
  26       *
  27       * @param AbstractProxy|NativeSessionHandler|\SessionHandlerInterface|null $handler
  28       * @param MetadataBag                                                      $metaBag MetadataBag
  29       */
  30      public function __construct($handler = null, MetadataBag $metaBag = null)
  31      {
  32          $this->setMetadataBag($metaBag);
  33          $this->setSaveHandler($handler);
  34      }
  35  
  36      /**
  37       * {@inheritdoc}
  38       */
  39      public function start()
  40      {
  41          if ($this->started) {
  42              return true;
  43          }
  44  
  45          $this->loadSession();
  46          if (!$this->saveHandler->isWrapper() && !$this->saveHandler->isSessionHandlerInterface()) {
  47              // This condition matches only PHP 5.3 + internal save handlers
  48              $this->saveHandler->setActive(true);
  49          }
  50  
  51          return true;
  52      }
  53  
  54      /**
  55       * {@inheritdoc}
  56       */
  57      public function clear()
  58      {
  59          // clear out the bags and nothing else that may be set
  60          // since the purpose of this driver is to share a handler
  61          foreach ($this->bags as $bag) {
  62              $bag->clear();
  63          }
  64  
  65          // reconnect the bags to the session
  66          $this->loadSession();
  67      }
  68  }