Symfony2 自定义密码编码器（bcrypt）

我已经编写了自己的密码编码器，它实现了PasswordEncoderInterface:

class BCryptPasswordEncoder implements PasswordEncoderInterface {
    protected $encoder;

    public function __construct(BCryptEncoder $encoder) {
        $this->encoder = $encoder;
    }

    public function encodePassword($raw, $salt) {
        return $this->encoder->encodeString($raw, $salt);
    }

    public function isPasswordValid($encoded, $raw, $salt) {
        return $this->encoder->encodeString($raw, $salt) == $encoded;
    }
}

编码器注册为具有 id 的服务bcrypt.password.encoder。但我不知道如何告诉 symfony 使用它。 目前app/config/security.yml看起来像这样：

security:
    encoders:
        Symfony\Component\Security\Core\User\User: plaintext

    role_hierarchy:
        ROLE_ADMIN:       ROLE_USER
        ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]

    providers:
        neo4j:
          id: security.user.provider.neo4j
    firewalls:
        dev:
            pattern:  ^/(_(profiler|wdt)|css|images|js)/
            security: false
        secured_area:
            provider: neo4j
            pattern:    ^/.*
            form_login:
                check_path: /login_check
                login_path: /login
            logout:
                path:   /logout
                target: /
            anonymous: ~
    access_control:
        - { path: ^/login, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/.*, role: ROLE_ADMIN }

顺便说一句，我没有使用任何学说实体。

Edit: Symfony\Component\Security\Core\User\User是我的用户对象。我修改了security.yml a bit:

encoders:
    Symfony\Component\Security\Core\User\User: 
        id: bcrypt.password.encoder

这会导致致命错误：

Catchable Fatal Error: Argument 1 passed to EMC3\Bundle\UserBundle\Neo4jUserProvider::__construct() must be an instance of EMC3\Bundle\UserBundle\UserManager, instance of EMC3\Bundle\UserBundle\BCryptEncoder given, called in /var/www/emc3/app/cache/dev/appDevDebugProjectContainer.php on line 227 and defined in /var/www/emc3/src/EMC3/Bundle/UserBundle/Neo4jUserProvider.php line 29

这对我来说没有任何意义。

从 Symfony 2.2 开始，BCrypt 是原生支持 http://symfony.com/doc/2.3/reference/configuration/security.html#reference-security-bcrypt，因此您可以轻松配置它，如下所示：

security:
    encoders:
        Symfony\Component\Security\Core\User\User:
            algorithm: bcrypt
            cost: 7

如果您有足够快的服务器，您可能需要向上调整成本。