/**
* Returns the whole sitemap, a requested sitemap chunk, or the sitemap index file.
*
* @param int $chunk_id
* Optional ID of the sitemap chunk. If none provided, the first chunk or
* the sitemap index is fetched.
*
* @throws NotFoundHttpException
*
* @return object
* Returns an XML response.
*/
public function getSitemap($chunk_id = NULL)
{
$output = $this->generator->getSitemap($chunk_id);
if (!$output) {
throw new NotFoundHttpException();
}
// Display sitemap with correct xml header.
$response = new CacheableResponse($output, Response::HTTP_OK, ['content-type' => 'application/xml']);
$meta_data = $response->getCacheableMetadata();
$meta_data->addCacheTags(['simple_sitemap']);
return $response;
}
/**
* Sets a header.
*/
public function setHeader(Request $request)
{
$query = $request->query->all();
$response = new CacheableResponse();
$response->headers->set($query['name'], $query['value']);
$response->getCacheableMetadata()->addCacheContexts(['url.query_args:name', 'url.query_args:value']);
$response->setContent($this->t('The following header was set: %name: %value', array('%name' => $query['name'], '%value' => $query['value'])));
return $response;
}