function UserAccessControlHandler::checkAccess

File

core/modules/user/src/UserAccessControlHandler.php, line 31

Class

UserAccessControlHandler

Defines the access control handler for the user entity type.

Namespace

Code

protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
  /** @var \Drupal\user\UserInterface $entity*/
  // We don't treat the user label as privileged information, so this check
  // has to be the first one in order to allow labels for all users to be
  // viewed, including the special anonymous user.
  if ($operation === 'view label') {
    return AccessResult::allowed();
  }
  // The anonymous user's profile can neither be viewed, updated nor deleted.
  if ($entity->isAnonymous()) {
    return AccessResult::forbidden();
  }
  // Administrators can view/update/delete all user profiles.
  if ($account->hasPermission('administer users')) {
    return AccessResult::allowed()->cachePerPermissions();
  }
  switch ($operation) {
    case 'view':
      // Only allow view access if the account is active.
      if ($account->hasPermission('access user profiles') && $entity->isActive()) {
        return AccessResult::allowed()->cachePerPermissions()
          ->addCacheableDependency($entity);
      }
      elseif ($account->id() == $entity->id()) {
        return AccessResult::allowed()->cachePerUser();
      }
      else {
        return AccessResultNeutral::neutral("The 'access user profiles' permission is required and the user must be active.")->cachePerPermissions()
          ->addCacheableDependency($entity);
      }
      break;

    case 'update':
      // Users can always edit their own account.
      $access_result = AccessResult::allowedIf($account->id() == $entity->id())
        ->cachePerUser();
      if (!$access_result->isAllowed() && $access_result instanceof AccessResultReasonInterface) {
        $access_result->setReason("Users can only update their own account, unless they have the 'administer users' permission.");
      }
      return $access_result;
    case 'delete':
      // Users with 'cancel account' permission can cancel their own account.
      return AccessResult::allowedIfHasPermission($account, 'cancel account')->andIf(AccessResult::allowedIf($account->id() == $entity->id())
        ->cachePerUser());
  }
  // No opinion.
  return AccessResult::neutral();
}