comparison core/lib/Drupal/Core/Session/SessionHandler.php @ 0:4c8ae668cc8c

Initial import (non-working)

+<?php
+
+namespace Drupal\Core\Session;
+
+use Drupal\Component\Utility\Crypt;
+use Drupal\Core\Database\Connection;
+use Drupal\Core\DependencyInjection\DependencySerializationTrait;
+use Drupal\Core\Utility\Error;
+use Symfony\Component\HttpFoundation\RequestStack;
+use Symfony\Component\HttpFoundation\Session\Storage\Proxy\AbstractProxy;
+
+/**
+ * Default session handler.
+ */
+class SessionHandler extends AbstractProxy implements \SessionHandlerInterface {
+
+  use DependencySerializationTrait;
+
+  /**
+   * The request stack.
+   *
+   * @var \Symfony\Component\HttpFoundation\RequestStack
+   */
+  protected $requestStack;
+
+  /**
+   * The database connection.
+   *
+   * @var \Drupal\Core\Database\Connection
+   */
+  protected $connection;
+
+  /**
+   * Constructs a new SessionHandler instance.
+   *
+   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
+   *   The request stack.
+   * @param \Drupal\Core\Database\Connection $connection
+   *   The database connection.
+   */
+  public function __construct(RequestStack $request_stack, Connection $connection) {
+    $this->requestStack = $request_stack;
+    $this->connection = $connection;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function open($save_path, $name) {
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function read($sid) {
+    $data = '';
+    if (!empty($sid)) {
+      // Read the session data from the database.
+      $query = $this->connection
+        ->queryRange('SELECT session FROM {sessions} WHERE sid = :sid', 0, 1, [':sid' => Crypt::hashBase64($sid)]);
+      $data = (string) $query->fetchField();
+    }
+    return $data;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function write($sid, $value) {
+    // The exception handler is not active at this point, so we need to do it
+    // manually.
+    try {
+      $request = $this->requestStack->getCurrentRequest();
+      $fields = [
+        'uid' => $request->getSession()->get('uid', 0),
+        'hostname' => $request->getClientIP(),
+        'session' => $value,
+        'timestamp' => REQUEST_TIME,
+      ];
+      $this->connection->merge('sessions')
+        ->keys(['sid' => Crypt::hashBase64($sid)])
+        ->fields($fields)
+        ->execute();
+      return TRUE;
+    }
+    catch (\Exception $exception) {
+      require_once DRUPAL_ROOT . '/core/includes/errors.inc';
+      // If we are displaying errors, then do so with no possibility of a
+      // further uncaught exception being thrown.
+      if (error_displayable()) {
+        print '<h1>Uncaught exception thrown in session handler.</h1>';
+        print '<p>' . Error::renderExceptionSafe($exception) . '</p><hr />';
+      }
+      return FALSE;
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function close() {
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function destroy($sid) {
+    // Delete session data.
+    $this->connection->delete('sessions')
+      ->condition('sid', Crypt::hashBase64($sid))
+      ->execute();
+
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function gc($lifetime) {
+    // Be sure to adjust 'php_value session.gc_maxlifetime' to a large enough
+    // value. For example, if you want user sessions to stay in your database
+    // for three weeks before deleting them, you need to set gc_maxlifetime
+    // to '1814400'. At that value, only after a user doesn't log in after
+    // three weeks (1814400 seconds) will his/her session be removed.
+    $this->connection->delete('sessions')
+      ->condition('timestamp', REQUEST_TIME - $lifetime, '<')
+      ->execute();
+    return TRUE;
+  }
+
+}