coveo-1.0.0-alpha1/src/Controller/SearchTokenRefresh.php

<?php

declare(strict_types=1);

namespace Drupal\coveo\Controller;

use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Logger\LoggerChannelTrait;
use Drupal\coveo\Entity\CoveoSearchComponent;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * Search token refresh controller.
 */
class SearchTokenRefresh extends ControllerBase {

  use LoggerChannelTrait;

  public function __construct(ConfigFactoryInterface $configFactory) {
    $this->configFactory = $configFactory;
  }

  /**
   * {@inheritDoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('config.factory'),
    );
  }

  /**
   * Controller callback for refreshing a search token for a user.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   Current request.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   Response containing new search token for a user.
   */
  public function getNewToken(Request $request): JsonResponse {
    if (!$request->query->has('search')) {
      throw new NotFoundHttpException();
    }
    else {
      $search = CoveoSearchComponent::load($request->get('search'));
      if (!$search) {
        throw new NotFoundHttpException();
      }
    }

    // @todo limit token generation to certain backends?
    $token = $search->getToken($request, $this->currentUser());
    if ($token) {
      return new JsonResponse(['token' => $token]);
    }
    return new JsonResponse('Problem communicating with search', 500);
  }

}