我在Symfony 4中得到错误：
返回值 App\Controller\RegistrationCreatorController：：register(( 必须是 Symfony\Component\HttpFoundation\Response 的实例，返回
空值
在RegistrationCreatorController中，我有这个：
namespace AppController;
use AppEntityUser;
use AppEntityCreator;
use AppEntityCreatorApplication;
use AppFormCreatorRegistrationForm;
use AppSecurityUserAuthenticationAuthenticator;
use SymfonyBundleFrameworkBundleControllerAbstractController;
use SymfonyComponentHttpFoundationRequest;
use SymfonyComponentHttpFoundationResponse;
use SymfonyComponentSecurityCoreEncoderUserPasswordEncoderInterface;
use SymfonyComponentSecurityGuardGuardAuthenticatorHandler;
class RegistrationCreatorController extends AbstractController
{
public function register(
Request $request,
UserPasswordEncoderInterface $passwordEncoder,
GuardAuthenticatorHandler $guardHandler,
UserAuthenticationAuthenticator $authenticator
): Response
{
$user = new User();
$creator = new Creator();
$application = new CreatorApplication();
$form = $this
->createForm(
CreatorRegistrationForm::class,
[$user, $creator, $application]
);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$user
->setEmail(
$form->get('email')->getData()
)
->setPassword(
$passwordEncoder->encodePassword(
$user,
$form->get('password')->getData()
)
)
->setFirstName(
$form->get('firstname')->getData()
)
->setLastName(
$form->get('lastname')->getData()
)
->setBirthday(
$form->get('birthday')->getData()
);
$application->createApplication(
$form->get('question-1')->getData(),
$form->get('question-2')->getData(),
$form->get('question-3')->getData(),
$form->get('question-4')->getData()
);
$creator
->associateUser($user)
->associateApplication($application);
$entityManager = $this->getDoctrine()->getManager();
$entityManager->persist($user);
$entityManager->persist($creator);
$entityManager->persist($application);
$entityManager->flush(); //this is what inserts to db!
// do anything else you need here, like send an
return $guardHandler->authenticateUserAndHandleSuccess(
$user,
$request,
$authenticator,
'main' // This is the issue here //
);
}
return $this->render('registration/creator-register.html.twig', [
'creatorForm' => $form->createView(),
]);
}
}
该错误特别指出这一点：
return $guardHandler->authenticateUserAndHandleSuccess(
$user,
$request,
$authenticator,
'main' // This is the even more specific issue //
);
我不完全确定问题是什么？当我查看security.yaml文件时，它指向userAuthenticationAuthenticator，该是当我调用make:registration-form时从Symfony 4自动生成的。
用户身份验证器：
<?php
namespace AppSecurity;
use AppEntityUser;
use DoctrineORMEntityManagerInterface;
use SymfonyComponentHttpFoundationRedirectResponse;
use SymfonyComponentHttpFoundationRequest;
use SymfonyComponentRoutingGeneratorUrlGeneratorInterface;
use SymfonyComponentSecurityCoreAuthenticationTokenTokenInterface;
use SymfonyComponentSecurityCoreExceptionCustomUserMessageAuthenticationException;
use SymfonyComponentSecurityCoreEncoderUserPasswordEncoderInterface;
use SymfonyComponentSecurityCoreExceptionInvalidCsrfTokenException;
use SymfonyComponentSecurityCoreSecurity;
use SymfonyComponentSecurityCoreUserUserInterface;
use SymfonyComponentSecurityCoreUserUserProviderInterface;
use SymfonyComponentSecurityCsrfCsrfToken;
use SymfonyComponentSecurityCsrfCsrfTokenManagerInterface;
use SymfonyComponentSecurityGuardAuthenticatorAbstractFormLoginAuthenticator;
use SymfonyComponentSecurityHttpUtilTargetPathTrait;
class UserAuthenticationAuthenticator extends AbstractFormLoginAuthenticator
{
use TargetPathTrait;
private $entityManager;
private $urlGenerator;
private $csrfTokenManager;
private $passwordEncoder;
public function __construct(EntityManagerInterface $entityManager, UrlGeneratorInterface $urlGenerator, CsrfTokenManagerInterface $csrfTokenManager, UserPasswordEncoderInterface $passwordEncoder)
{
$this->entityManager = $entityManager;
$this->urlGenerator = $urlGenerator;
$this->csrfTokenManager = $csrfTokenManager;
$this->passwordEncoder = $passwordEncoder;
}
public function supports(Request $request)
{
return 'app_login' === $request->attributes->get('_route')
&& $request->isMethod('POST');
}
public function getCredentials(Request $request)
{
$credentials = [
'email' => $request->request->get('email'),
'password' => $request->request->get('password'),
'csrf_token' => $request->request->get('_csrf_token'),
];
$request->getSession()->set(
Security::LAST_USERNAME,
$credentials['email']
);
return $credentials;
}
public function getUser($credentials, UserProviderInterface $userProvider)
{
$token = new CsrfToken('authenticate', $credentials['csrf_token']);
if (!$this->csrfTokenManager->isTokenValid($token)) {
throw new InvalidCsrfTokenException();
}
$user = $this->entityManager->getRepository(User::class)->findOneBy(['email' => $credentials['email']]);
if (!$user) {
// fail authentication with a custom error
throw new CustomUserMessageAuthenticationException('Email could not be found.');
}
return $user;
}
public function checkCredentials($credentials, UserInterface $user)
{
return $this->passwordEncoder->isPasswordValid($user, $credentials['password']);
}
public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
{
if ($targetPath = $this->getTargetPath($request->getSession(), $providerKey)) {
return new RedirectResponse($targetPath);
}
// For example : return new RedirectResponse($this->urlGenerator->generate('some_route'));
//throw new Exception('TODO: provide a valid redirect inside '.__FILE__);
}
protected function getLoginUrl()
{
return $this->urlGenerator->generate('app_login');
}
}
?>
我以为警卫处理程序会返回响应，但我想不是吗？
文档注释告诉，如果有的话，它会返回响应
/** * Convenience method for authenticating the user and returning the * Response *if any* for success. */https://github.com/symfony/symfony/blob/d97f9ab131ae1fbc3c4371f2a38b8c1e41eef499/src/Symfony/Component/Security/Guard/GuardAuthenticatorHandler.php#L84
它甚至可能引发异常...
所以不，Response不一定是结果。特别是如果你阅读AuthenticatorInterface
一个实用的解决方案是只重定向到索引页 (/(，以防不返回Response对象：
return $guardhandler->authenticateUserAndHandleSuccess(...)
?: new RedirectResponse('/'); // fallback