entity_activity-8.x-1.0-beta13/src/Access/SubscriptionAccessCheck.php

<?php

namespace Drupal\entity_activity\Access;

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Routing\Access\AccessInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Session\AccountInterface;
use Symfony\Component\Routing\Route;

/**
 * Access check for the subscription api.
 *
 * Check if a user can (un)subscribe on a content entity.
 */
class SubscriptionAccessCheck implements AccessInterface {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Constructs a new SubscriptionAccessCheck object.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * Checks access.
   *
   * More advanced access checks are done by the API itself.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route to check against.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The route match.
   * @param \Drupal\Core\Session\AccountInterface $account
   *   The currently logged in account.
   *
   * @return \Drupal\Core\Access\AccessResultInterface
   *   The access result.
   */
  public function access(Route $route, RouteMatchInterface $route_match, AccountInterface $account) {
    if ($account->isAnonymous()) {
      return AccessResult::forbidden('Anonymous can not subscribe on entities')
        ->cachePerPermissions();
    }

    if ($account->hasPermission('subscribe all entities')) {
      return AccessResult::allowed()
        ->cachePerPermissions();
    }

    return AccessResult::forbidden('Forbidden by default.')
      ->cachePerPermissions();
  }

}