protected function NodeAccessControlHandler::checkAccess in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/node/src/NodeAccessControlHandler.php \Drupal\node\NodeAccessControlHandler::checkAccess()
2. 10 core/modules/node/src/NodeAccessControlHandler.php \Drupal\node\NodeAccessControlHandler::checkAccess()

Performs access checks.

This method is supposed to be overwritten by extending classes that do their own custom access checking.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity for which to check access.

string $operation: The entity operation. Usually one of 'view', 'view label', 'update' or 'delete'.

\Drupal\Core\Session\AccountInterface $account: The user for which to check access.

Return value

\Drupal\Core\Access\AccessResultInterface The access result.

Overrides EntityAccessControlHandler::checkAccess

File

core/modules/node/src/NodeAccessControlHandler.php, line 95

Class

NodeAccessControlHandler

Defines the access control handler for the node entity type.

Namespace

Drupal\node

Code

protected function checkAccess(EntityInterface $node, $operation, AccountInterface $account) {

  /** @var \Drupal\node\NodeInterface $node */

  // Fetch information from the node object if possible.
  $status = $node
    ->isPublished();
  $uid = $node
    ->getOwnerId();

  // Check if authors can view their own unpublished nodes.
  if ($operation === 'view' && !$status && $account
    ->hasPermission('view own unpublished content') && $account
    ->isAuthenticated() && $account
    ->id() == $uid) {
    return AccessResult::allowed()
      ->cachePerPermissions()
      ->cachePerUser()
      ->addCacheableDependency($node);
  }

  // Evaluate node grants.
  $access_result = $this->grantStorage
    ->access($node, $operation, $account);
  if ($operation === 'view' && $access_result instanceof RefinableCacheableDependencyInterface) {

    // Node variations can affect the access to the node. For instance, the
    // access result cache varies on the node's published status. Only the
    // 'view' node grant can currently be cached. The 'update' and 'delete'
    // grants are already marked as uncacheable in the node grant storage.
    // @see \Drupal\node\NodeGrantDatabaseStorage::access()
    $access_result
      ->addCacheableDependency($node);
  }
  return $access_result;
}