java - 对于同一路径，JWT 身份验证可回退到 SAML2

Question

我正在使用 spring-security-saml2-service-provider 在我的一个 Spring Boot 应用程序中进行身份验证，并且我正在使用自定义 JwtAuthorizationFilter (通过http 身份验证 header )在不同的 Spring Boot 应用程序中。

它们各自都能完美工作。

现在我需要编写一个使用它们的 Spring Boot 应用程序。如果 JWT token 可用(身份验证 header )，则使用 JwtAuthorizationFilter，否则使用 saml2Login。

SAML2 配置如下所示:(没有过滤器，只有 saml2Login)

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf()
            .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()).and()
            .antMatcher("/**").authorizeRequests()
            .antMatchers("/saml2/service-provider-metadata/**").permitAll()
            .antMatchers("/**").authenticated().and()

            // use SAML2
            .saml2Login()
            .addObjectPostProcessor(new ObjectPostProcessor<OpenSamlAuthenticationProvider>() {
                public <O extends OpenSamlAuthenticationProvider> O postProcess(O samlAuthProvider) {
                    samlAuthProvider.setAuthoritiesExtractor(authoritiesExtractor());
                    samlAuthProvider.setAuthoritiesMapper(authoritiesMapper());
                    return samlAuthProvider;
                }
            })
        ;
    }

JWT 配置如下所示:

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf()
            .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()).and()
            .antMatcher("/**").authorizeRequests()
            .antMatchers("/**").authenticated().and()

            // use JWT
            .addFilter(new JwtAuthorizationFilter(authenticationManager(), jwtUtil))
        ;
    }

我想我需要类似 JwtOrSaml2AuthenticationFilter 的东西，但不知道该怎么做。

Answer 1

解决办法是

1. 使用 @Order 复制配置并

2. 在 addFilter 之前设置基于 header 的 requestMatcher

   @EnableWebSecurity
   public class SecurityConfiguration {
       @Order(100) // lower number = higher priority
       @Configuration
       @RequiredArgsConstructor
       public static class AppSecurityJWT extends WebSecurityConfigurerAdapter {
           final JWTUtil jwtUtil;
   
           @Override
           protected void configure(HttpSecurity http) throws Exception {
               http.csrf().csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()).and()
                   .antMatcher("/**").authorizeRequests()
                   .antMatchers("/saml2/service-provider-metadata/**", "/idm-app/**").permitAll()
                   .antMatchers("/**").authenticated().and()
   
                   // This configuration will only be active if the Authorization header is present in the request
                   .requestMatcher(new RequestHeaderRequestMatcher("Authorization")).addFilter(new JwtAuthorizationFilter(authenticationManager(), jwtUtil))
               ;
           }
       }
   
       @Order(101)
       @Configuration
       @RequiredArgsConstructor
       public static class AppSecuritySAML2 extends WebSecurityConfigurerAdapter {
           @Override
           protected void configure(HttpSecurity http) throws Exception {
               http
                   .csrf().csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()).and()
                   .antMatcher("/**").authorizeRequests()
                   .antMatchers("/saml2/service-provider-metadata/**", "/idm-app/**").permitAll()
                   .antMatchers("/**").authenticated().and()
   
                   // This whole configuration will only be active, if the previous (100) didn't match
                   .saml2Login()
                   //...
           ;
       }
   }