Symfony2通过api密钥访问控制问题验证用户

你好，我正在为自己开发一个项目。我要做的是验证所有调用api除了用户注册。我创建了用户认证和用户提供者，如下链接所述:http://symfony.com/doc/current/cookbook/security/api_key_authentication.html

一切都很好，所有的url到我的后端是经过身份验证的，它们是由UserTokenAuthenticator和UserTokenProvider处理的。但是它会验证每个电话。我不想验证这个url

    /v1.0/users with POST method

所以我设置了安全访问控制。Yml文件如下:

access_control:
    user_register:
        path: ^/v1.0/users
        roles: IS_AUTHENTICATED_ANONYMOUSLY
        methods: [POST]

但是每当我尝试对这个url进行post调用时，它都会尝试进行身份验证(因为调用没有令牌作为参数)并且失败。如何防止只对这条路由进行认证??以下是我的全部代码:

security.yml:

security:
    encoders:
        entity_user:
            class: KBell'AppBundle'Entity'User
            algorithm: sha1
            iterations: 1
            encode_as_base64: false
        entity_device:
            class: KBell'AppBundle'Entity'Device
            algorithm: sha1
            iterations: 1
            encode_as_base64: false
    role_hierarchy:
        ROLE_DEVICE: ROLE_DEVICE
        ROLE_USER : ROLE_USER
    providers:
        entity_device:
            entity:
                class: KBell'AppBundle'Entity'Device
                property: name
        entity_user:
            entity:
                class: KBell'AppBundle'Entity'User
                property: email
        user_token_provider:
            id: user_token_provider
    firewalls:
        dev:
            pattern: ^/(_(profiler|wdt)|css|images|js)/
            security: false
        api_user_secured_area:
            pattern: ^/v1.0/users
            stateless: true
            simple_preauth:
                authenticator: user_token_authenticator
            provider: user_token_provider
    access_control:
        user_register:
            path: ^/v1.0/users
            roles: IS_AUTHENTICATED_ANONYMOUSLY
            methods: [POST]

这里是UserTokenAuthenticator:

<?php
class UserTokenAuthenticator implements SimplePreAuthenticatorInterface,    AuthenticationFailureHandlerInterface
{
    public function createToken(Request $request, $providerKey)
    {
        $accessToken = $request->query->get('access_token');
        if (!$accessToken) {
            throw new BadCredentialsException('Access Token is missing');
        }
        return new PreAuthenticatedToken(
            'anon.',
            $accessToken,
            $providerKey
        );
    }
    public function authenticateToken(TokenInterface $token, UserProviderInterface $userProvider, $providerKey)
    {
        $accessToken = $token->getCredentials();
        $user = $userProvider->getUserForAccessToken($accessToken);
        if (!$user) {
            throw new AuthenticationException(
                sprintf('Access Token "%s" does not exist.', $accessToken)
            );
        }
        return new PreAuthenticatedToken(
            $user,
            $accessToken,
            $providerKey,
            $user->getRoles()
        );
    }
    public function supportsToken(TokenInterface $token, $providerKey)
    {
        return $token instanceof PreAuthenticatedToken && $token->getProviderKey() === $providerKey;
    }
    public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
    {
        return ApiUtil::getJsonErrorResponse("User authentication is failed: ".$exception->getMessage(), Response::HTTP_UNAUTHORIZED, "AuthenticationException");
    }
}

UserTokenProvider.php:

class UserTokenProvider implements UserProviderInterface
{
    private $userManager;
    public function __construct(UserManager $userManager)
    {
        $this->userManager = $userManager;
    }
    public function getUserForAccessToken($accessToken)
    {
        $user = $this->userManager->findUserByAccessToken($accessToken);
        return $user;
    }
    public function loadUserByUsername($username)
    {
    }
    public function refreshUser(UserInterface $user)
    {
        throw new UnsupportedUserException();
    }
    public function supportsClass($class)
    {
        return 'Symfony'Component'Security'Core'User'User' === $class;
    }
}

我为此花了很多时间。任何帮助将不胜感激!谢谢你！