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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Security\Http\Authenticator;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\BadCredentialsException;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Http\AccessToken\AccessTokenExtractorInterface;
use Symfony\Component\Security\Http\AccessToken\AccessTokenHandlerInterface;
use Symfony\Component\Security\Http\Authentication\AuthenticationFailureHandlerInterface;
use Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface;
use Symfony\Component\Security\Http\Authenticator\Passport\Passport;
use Symfony\Component\Security\Http\Authenticator\Passport\SelfValidatingPassport;
use Symfony\Component\Security\Http\Authenticator\Token\PostAuthenticationToken;
use Symfony\Contracts\Translation\TranslatorInterface;
/**
* Provides an implementation of the RFC6750 of an authentication via
* an access token.
*
* @author Florent Morselli <florent.morselli@spomky-labs.com>
*/
class AccessTokenAuthenticator implements AuthenticatorInterface
{
private ?TranslatorInterface $translator = null;
public function __construct(
private readonly AccessTokenHandlerInterface $accessTokenHandler,
private readonly AccessTokenExtractorInterface $accessTokenExtractor,
private readonly ?UserProviderInterface $userProvider = null,
private readonly ?AuthenticationSuccessHandlerInterface $successHandler = null,
private readonly ?AuthenticationFailureHandlerInterface $failureHandler = null,
private readonly ?string $realm = null,
) {
}
public function supports(Request $request): ?bool
{
return null === $this->accessTokenExtractor->extractAccessToken($request) ? false : null;
}
public function authenticate(Request $request): Passport
{
$accessToken = $this->accessTokenExtractor->extractAccessToken($request);
if (!$accessToken) {
throw new BadCredentialsException('Invalid credentials.');
}
$userBadge = $this->accessTokenHandler->getUserBadgeFrom($accessToken);
if ($this->userProvider && (null === $userBadge->getUserLoader() || $userBadge->getUserLoader() instanceof FallbackUserLoader)) {
$userBadge->setUserLoader($this->userProvider->loadUserByIdentifier(...));
}
return new SelfValidatingPassport($userBadge);
}
public function createToken(Passport $passport, string $firewallName): TokenInterface
{
return new PostAuthenticationToken($passport->getUser(), $firewallName, $passport->getUser()->getRoles());
}
public function onAuthenticationSuccess(Request $request, TokenInterface $token, string $firewallName): ?Response
{
return $this->successHandler?->onAuthenticationSuccess($request, $token);
}
public function onAuthenticationFailure(Request $request, AuthenticationException $exception): Response
{
if (null !== $this->failureHandler) {
return $this->failureHandler->onAuthenticationFailure($request, $exception);
}
if (null !== $this->translator) {
$errorMessage = $this->translator->trans($exception->getMessageKey(), $exception->getMessageData(), 'security');
} else {
$errorMessage = strtr($exception->getMessageKey(), $exception->getMessageData());
}
return new Response(
null,
Response::HTTP_UNAUTHORIZED,
['WWW-Authenticate' => $this->getAuthenticateHeader($errorMessage)]
);
}
public function setTranslator(?TranslatorInterface $translator): void
{
$this->translator = $translator;
}
/**
* @see https://datatracker.ietf.org/doc/html/rfc6750#section-3
*/
private function getAuthenticateHeader(?string $errorDescription = null): string
{
$data = [
'realm' => $this->realm,
'error' => 'invalid_token',
'error_description' => $errorDescription,
];
$values = [];
foreach ($data as $k => $v) {
if (null === $v || '' === $v) {
continue;
}
$values[] = \sprintf('%s="%s"', $k, $v);
}
return \sprintf('Bearer %s', implode(',', $values));
}
}
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