java - 如何向 HttpSecurity 添加自定义过滤器并检索用户？ ( Spring 安全)

Question

在WebSecurityConfigurerAdapter类中，我们有protected void configure(HttpSecurity http)方法，我们在其中添加对请求的限制。我想要的是:

1.检索想要进入的用户
2.检查该用户是否存在于数据库中
3.检查该用户是否具有特殊属性，例如:login.endsWith('_login')

Answer 1

实现自定义 AuthenticationProvider 所需的一切。根据需要通过其他服务器进行验证码。

@Component
public class CustomAuthenticationProvider
  implements AuthenticationProvider {

    @Override
    public Authentication authenticate(Authentication authentication) 
      throws AuthenticationException {

        String name = authentication.getName();
        String password = authentication.getCredentials().toString();

        if (shouldAuthenticateAgainstThirdPartySystem()) {

            // use the credentials
            // and authenticate against the third-party system
            return new UsernamePasswordAuthenticationToken(
              name, password, new ArrayList<>());
        } else {
            return null;
        }
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return authentication.equals(
          UsernamePasswordAuthenticationToken.class);
    }
}

并注册您的身份验证提供商。

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private CustomAuthenticationProvider authProvider;

    @Override
    protected void configure(
      AuthenticationManagerBuilder auth) throws Exception {

        auth.authenticationProvider(authProvider);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests().anyRequest().authenticated()
            .and()
            .httpBasic();
    }
}

Note : I am assuming you're using HTTP Basic Authentication, you can to change it to FormLogin or as per your need.