/** * {@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; }