/**
* {@inheritdoc}
*/
public function start(Request $request, AuthenticationException $authException = null)
{
$authenticateHeader = sprintf('Bearer realm=%s', $this->quotedString($this->realmName));
if ($authException instanceof OAuthExceptionInterface) {
$authenticateHeader .= sprintf(', error="%s"', $authException->getErrorCode());
$authenticateHeader .= sprintf(', error_description=%s', $this->quotedString($authException->getMessage()));
}
if (null !== $this->logger) {
$this->logger->debug('WWW-Authenticate header sent.', ['header' => $authenticateHeader]);
}
$response = new Response();
$response->headers->set('WWW-Authenticate', $authenticateHeader);
$response->setStatusCode(401);
return $response;
}