/**
* Apply access check service to the route and parameters in the request.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The request to access check.
*/
protected function checkAccess(Request $request)
{
// The cacheability (if any) of this request's access check result must be
// applied to the response.
$access_result = $this->accessManager->checkRequest($request, $this->account, TRUE);
// Allow a master request to set the access result for a subrequest: if an
// access result attribute is already set, don't overwrite it.
if (!$request->attributes->has(AccessAwareRouterInterface::ACCESS_RESULT)) {
$request->attributes->set(AccessAwareRouterInterface::ACCESS_RESULT, $access_result);
}
if (!$access_result->isAllowed()) {
throw new AccessDeniedHttpException($access_result instanceof AccessResultReasonInterface ? $access_result->getReason() : NULL);
}
}
/**
* {@inheritdoc}
*/
public function build(RouteMatchInterface $route_match)
{
$links = array();
// General path-based breadcrumbs. Use the actual request path, prior to
// resolving path aliases, so the breadcrumb can be defined by simply
// creating a hierarchy of path aliases.
$path = trim($this->context->getPathInfo(), '/');
$path_elements = explode('/', $path);
$exclude = array();
// Don't show a link to the front-page path.
$front = $this->config->get('page.front');
$exclude[$front] = TRUE;
// /user is just a redirect, so skip it.
// @todo Find a better way to deal with /user.
$exclude['user'] = TRUE;
while (count($path_elements) > 1) {
array_pop($path_elements);
// Copy the path elements for up-casting.
$route_request = $this->getRequestForPath(implode('/', $path_elements), $exclude);
if ($route_request) {
$access = $this->accessManager->checkRequest($route_request, $this->currentUser);
if ($access) {
$title = $this->titleResolver->getTitle($route_request, $route_request->attributes->get(RouteObjectInterface::ROUTE_OBJECT));
}
if ($access) {
if (!isset($title)) {
// Fallback to using the raw path component as the title if the
// route is missing a _title or _title_callback attribute.
$title = str_replace(array('-', '_'), ' ', Unicode::ucfirst(end($path_elements)));
}
$links[] = Link::createFromRoute($title, $route_request->attributes->get(RouteObjectInterface::ROUTE_NAME), $route_request->attributes->get('_raw_variables')->all());
}
}
}
if ($path && $path != $front) {
// Add the Home link, except for the front page.
$links[] = Link::createFromRoute($this->t('Home'), '<front>');
}
return array_reverse($links);
}
/**
* Apply access check service to the route and parameters in the request.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The request to access check.
*/
protected function checkAccess(Request $request)
{
if (!$this->accessManager->checkRequest($request, $this->account)) {
throw new AccessDeniedHttpException();
}
}
