Spring Security with Java Configuration：如何处理来自自定义提供程序的BadCredentialsException

Question

java prettyprint-override">public static class SecurityConfigForRS extends
        WebSecurityConfigurerAdapter {

    @Autowired
    TokenAuthenticationProvider tokenAuthenticationProvider;

    @Override
    protected void configure(AuthenticationManagerBuilder auth)
            throws Exception {
        auth.authenticationProvider(tokenAuthenticationProvider);
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean()
            throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        super.configure(http);

        http.regexMatcher("^/rest.*")
                .addFilterBefore(
                        new TokenAuthenticationFilter(
                                authenticationManagerBean()),
                        AbstractPreAuthenticatedProcessingFilter.class)
                .and().csrf().disable();

    }
}

现在，我跳过其他实现--如果有帮助，我将在以后发布它们。

缺少令牌或令牌无效时，TokeAuthernticationProvider引发BadCredentialsException。我需要捕获这个并发回401-unauthorized。有可能做到这一点吗？

Answer 1

我创建的第一个过滤器是GenericFilterBean的子类，它不支持身份验证失败处理程序或成功处理程序。但是，AbstractAuthenticationProcessingFilter支持成功和失败处理程序。我的过滤器就这么简单：

public class TokenAuthenticationProcessingFilter extends
    AbstractAuthenticationProcessingFilter {

public TokenAuthenticationProcessingFilter(
        RequestMatcher requiresAuthenticationRequestMatcher) {
    super(requiresAuthenticationRequestMatcher);
}

@Override
public Authentication attemptAuthentication(HttpServletRequest request,
        HttpServletResponse response) throws AuthenticationException,
        IOException, ServletException {
    Authentication auth = new TokenAuthentication("-1");
    try {
        Map<String, String[]> params = request.getParameterMap();
        if (!params.isEmpty() && params.containsKey("auth_token")) {
            String token = params.get("auth_token")[0];
            if (token != null) {
                auth = new TokenAuthentication(token);
            }
        }
        return this.getAuthenticationManager().authenticate(auth);
    } catch (AuthenticationException ae) {
        unsuccessfulAuthentication(request, response, ae);
    }
    return auth;
}}

我的http安全性是：

    public static class SecurityConfigForRS extends
        WebSecurityConfigurerAdapter {

    @Autowired
    TokenAuthenticationProvider tokenAuthenticationProvider;

    @Override
    protected void configure(AuthenticationManagerBuilder auth)
            throws Exception {
        auth.authenticationProvider(tokenAuthenticationProvider);
    }

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean()
            throws Exception {
        return super.authenticationManagerBean();
    }

    @Bean
    protected AbstractAuthenticationProcessingFilter getTokenAuthFilter()
            throws Exception {
        TokenAuthenticationProcessingFilter tapf = new TokenAuthenticationProcessingFilter(
                new RegexRequestMatcher("^/rest.*", null));
        tapf.setAuthenticationManager(authenticationManagerBean());
        return tapf;
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        super.configure(http);

        http.regexMatcher("^/rest.*")
                .addFilterAfter(getTokenAuthFilter(),
                        BasicAuthenticationFilter.class).csrf().disable();

    }
}

过滤链的顺序很重要！我把它放在BasicAuthenticationFilter之后，它工作得很好。当然，可能有一个更好的解决方案，但目前这是可行的！