Spring Security 3：密码加盐问题

Question

我有一个简单的应用程序，可以注册用户并对其进行身份验证。我已经使用了加密密码，并且成功地进行了身份验证。在我的应用程序中，我使用了Spring 3、Spring Security 3和Hibernate 3。

现在，我想将他们的密码与用户ID一起加盐，但我无法实现此功能。是否有人能帮助我实现它？我已经尝试了相当长的时间，但无法完成。

以下是我用于给用户加盐并进行身份验证的代码。 xyz-security.xml

<http auto-config="true" use-expressions="true">
    <intercept-url pattern="/welcome.do" access="hasRole('ROLE_USER')" /> 
    <form-login login-page="/login.do" authentication-failure-url="/login.do?login_error=1"/>       
    <logout invalidate-session="true" logout-url="/logout" logout-success-url="/"/>
</http>

<beans:bean id="daoAuthenticationProvider"  class="org.springframework.security.authentication.dao.DaoAuthenticationProvider">
    <beans:property name="userDetailsService" ref="userDetailsService"/>
</beans:bean>

<beans:bean id="authenticationManager" class="org.springframework.security.authentication.ProviderManager">
    <beans:property name="providers">
        <beans:list>
            <beans:ref local="daoAuthenticationProvider" />
        </beans:list>
    </beans:property>
</beans:bean>

<authentication-manager>
    <authentication-provider user-service-ref="userDetailsService">
        <password-encoder ref="passwordEncoder">                
            <salt-source ref="saltSource"/>
            </password-encoder>
    </authentication-provider>
</authentication-manager>

<!-- For hashing and salting user passwords -->
<beans:bean id="passwordEncoder" class="org.springframework.security.authentication.encoding.ShaPasswordEncoder"/>
<beans:bean id="saltSource" class="org.springframework.security.authentication.dao.ReflectionSaltSource"
    p:userPropertyToUse="id"/>

UserDetailsAdapter.java

@Service("userDetailsAdapter")
public class UserDetailsAdapter {   

    private Long id;

    org.springframework.security.core.userdetails.User buildUserFromUserEntity(User userEntity) {
        String username = userEntity.getUsername();
        String password = userEntity.getPassword();
        boolean enabled = userEntity.isEnabled();
        boolean accountNonExpired = true;
        boolean credentialsNonExpired = true;
        boolean accountNonLocked = true;

        Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        for (String authority: userEntity.getAuthorities()) {

            authorities.add(new GrantedAuthorityImpl(authority));
        }

        this.id = userEntity.getId();

        org.springframework.security.core.userdetails.User user = new org.springframework.security.core.userdetails.User(username, password, enabled, accountNonExpired, credentialsNonExpired, accountNonLocked, authorities);
        return user;
    }

    public Long getId() {
        return id;
    }

}

UserDetailsServiceImpl

@Service("userDetailsService")
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private UserDao userDao;

    @Autowired
    private UserDetailsAdapter userDetailsAdapter;

    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException {
        UserDetails userDetails = null;
        User userEntity = userDao.findByUsername(username);

        if (userEntity == null) {
          throw new UsernameNotFoundException("user not found");
        }
        userDetails = userDetailsAdapter.buildUserFromUserEntity(userEntity);

        return userDetails;
    }
}

UserServiceImpl

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private UserDao userDao;

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Autowired
    private SaltSource saltSource;

    public User getByUsername(String username) {
        return userDao.findByUsername(username);
    }

    public User getByEmail(String email) {
        return userDao.findByEmail(email);
    }

    public void createUser(User user) {
        userDao.create(user);

        UserDetailsAdapter userDetailsAdapter = new UserDetailsAdapter();
        org.springframework.security.core.userdetails.User userDetails =  userDetailsAdapter.buildUserFromUserEntity(user);
        String password = userDetails.getPassword();
        Object salt = saltSource.getSalt(userDetails);
        user.setPassword(passwordEncoder.encodePassword(password, salt));
        userDao.update(user);

    }

    public void updateUser(User user) {
        userDao.update(user);
    }
}

有人可以帮我理解我在这里错过了什么吗？ 非常感谢。

- skip

---

请问您能否分享一下您的示例代码？谢谢。祝好，Neha - user5268786

Answer 1

以下是使其工作的更新文件：

UserDetailsAdapter.java

public class UserDetailsAdapter extends org.springframework.security.core.userdetails.User {
    private final Long id;
    public UserDetailsAdapter(User userEntity) {

        super(userEntity.getUsername(), userEntity.getPassword(), userEntity.isEnabled(), true, true, true, toAuthorities(userEntity.getAuthorities()));
        this.id = userEntity.getId();
    }

    private static Collection<GrantedAuthority> toAuthorities(List<String> authorities) {
        Collection<GrantedAuthority> authorityList = new ArrayList<GrantedAuthority>();
        for (String authority: authorities) {
            authorityList.add(new GrantedAuthorityImpl(authority));
        }
        return authorityList;
    }

    public Long getId() {
        return id;
    }

}

UserDetailsServiceImpl.java

@Service("userDetailsService")
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private UserDao userDao;

    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException {
        UserDetails userDetails = null;
        User userEntity = userDao.findByUsername(username);

        if (userEntity == null) {
          throw new UsernameNotFoundException("user not found");
        }
        userDetails = new UserDetailsAdapter(userEntity);

        return userDetails;
    }
}

UserServiceImpl.java

@Service
public class UserServiceImpl implements UserService {
...
    public void createUser(User user) {
        userDao.create(user);

        UserDetailsAdapter userDetails = new UserDetailsAdapter(user);
        String password = userDetails.getPassword();
        Object salt = saltSource.getSalt(userDetails);
        user.setPassword(passwordEncoder.encodePassword(password, salt));
        userDao.update(user);

    }
...
}

谢谢：）

- skip

---

请问您能否提供完整的示例代码？谢谢，Neha - user5268786

Answer 2

ReflectionSaltSource 从 UserDetails 实例中提取盐值。但是，您使用 org.springframework.security.core.userdetails.User 作为 UserDetails 的实现，它没有名为 id 的属性（相反，您在 UserDetailsAdapter 中拥有此属性，但这没有意义，因为 UserDetailsAdapter 是单例）。

因此，您需要创建 org.springframework.security.core.userdetails.User 的子类，该子类具有 id 属性，并从您的 UserDetailsAdapter 返回它。

- axtavt

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@skip：那么您应该点赞答案，如果您确定它是正确的，则接受它。 - Sagar

@Sagar：我错过了你的评论，刚刚才看到，我会很快发布我的答案，谢谢。 - skip