AliasController.php in Mini site 8

Namespace

Drupal\minisite\Controller

File

src/Controller/AliasController.php

<?php

namespace Drupal\minisite\Controller;

use Drupal\minisite\Asset;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * Class AliasController.
 *
 * Controller to deliver a single aliased asset.
 * Non-aliased assets and non-html documents are never delivered through this
 * controller.
 *
 * @package Drupal\minisite\Controller
 */
class AliasController implements ContainerAwareInterface {
  use ContainerAwareTrait;

  /**
   * Request callback to deliver a single minisite asset.
   *
   * @param int $asset_id
   *   Minisite asset id.
   *
   * @return \Symfony\Component\HttpFoundation\Response
   *   The response object.
   */
  public function deliverAsset($asset_id) {
    $asset = Asset::load($asset_id);
    if (!$asset) {
      throw new NotFoundHttpException();
    }
    try {
      $render = $asset
        ->render();
      $response = new Response($render);
    } catch (\Exception $exception) {
      throw new NotFoundHttpException();
    }
    $this
      ->addResponseHeaders($response, $asset);
    return $response;
  }

  /**
   * Add headers to the response object.
   *
   * @param \Symfony\Component\HttpFoundation\Response $response
   *   The response object.
   * @param \Drupal\minisite\Asset $asset
   *   The loaded asset to be used for contextual data.
   */
  protected function addResponseHeaders(Response $response, Asset $asset) {

    // @todo: Review and implement better caching strategy + add tests.
    $response
      ->setPublic();
    $max_age = $asset
      ->getCacheMaxAge();
    $response
      ->setMaxAge($max_age);
    $expires = new \DateTime();
    $expires
      ->setTimestamp(\Drupal::time()
      ->getRequestTime() + $max_age);
    $response
      ->setExpires($expires);
    $response->headers
      ->add($asset
      ->getHeaders());
  }

}

Classes

Name	Description
AliasController	Class AliasController.