java - Spring security CORS Filter

Question

We added Spring Security to our existing project.

From this moment on we get a 401 No 'Access-Control-Allow-Origin' header is present on the requested resource error from the our server.

That's because no Access-Control-Allow-Origin header is attached to the response. To fix this we added our own filter which is in the Filter chain before the logout filter, but the filter does not apply for our requests.

Our Error:

XMLHttpRequest cannot load http://localhost:8080/getKunden. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin http://localhost:3000 is therefore not allowed access. The response had HTTP status code 401.

Our Security configuration:

@EnableWebSecurity
@Configuration
@ComponentScan("com.company.praktikant")
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

@Autowired
private MyFilter filter;

@Override
public void configure(HttpSecurity http) throws Exception {
    final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    final CorsConfiguration config = new CorsConfiguration();

    config.addAllowedOrigin("*");
    config.addAllowedHeader("*");
    config.addAllowedMethod("GET");
    config.addAllowedMethod("PUT");
    config.addAllowedMethod("POST");
    source.registerCorsConfiguration("/**", config);
    http.addFilterBefore(new MyFilter(), LogoutFilter.class).authorizeRequests()
            .antMatchers(HttpMethod.OPTIONS, "/*").permitAll();
}

@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
}
}

Our filter

@Component
public class MyFilter extends OncePerRequestFilter {

@Override
public void destroy() {

}

private String getAllowedDomainsRegex() {
    return "individual / customized Regex";
}

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
        throws ServletException, IOException {

    final String origin = "http://localhost:3000";

    response.addHeader("Access-Control-Allow-Origin", origin);
    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS");
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Headers",
            "content-type, x-gwt-module-base, x-gwt-permutation, clientid, longpush");

    filterChain.doFilter(request, response);

}
}

Our Application

@SpringBootApplication
public class Application {
public static void main(String[] args) {
    final ApplicationContext ctx = SpringApplication.run(Application.class, args);
    final AnnotationConfigApplicationContext annotationConfigApplicationContext = new AnnotationConfigApplicationContext();
    annotationConfigApplicationContext.register(CORSConfig.class);
    annotationConfigApplicationContext.refresh();
}
}

Our filter is registered from spring-boot:

2016-11-04 09:19:51.494 INFO 9704 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'myFilter' to: [/*]

Our generated filterchain:

2016-11-04 09:19:52.729 INFO 9704 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher@1, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@5d8c5a8a, org.springframework.security.web.context.SecurityContextPersistenceFilter@7d6938f, org.springframework.security.web.header.HeaderWriterFilter@72aa89c, org.springframework.security.web.csrf.CsrfFilter@4af4df11, com.company.praktikant.MyFilter@5ba65db2, org.springframework.security.web.authentication.logout.LogoutFilter@2330834f, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@396532d1, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@4fc0f1a2, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@2357120f, org.springframework.security.web.session.SessionManagementFilter@10867bfb, org.springframework.security.web.access.ExceptionTranslationFilter@4b8bf1fb, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@42063cf1]

The Response: Response headers

We tried the solution from spring as well but it didn't work! The annotation @CrossOrigin in our controller didn't help either.

Edit 1:

Tried the solution from @Piotr So?tysiak. The cors filter isn't listed in the generated filter chain and we still get the same error.

2016-11-04 10:22:49.881 INFO 8820 --- [ost-startStop-1] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: org.springframework.security.web.util.matcher.AnyRequestMatcher@1, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@4c191377, org.springframework.security.web.context.SecurityContextPersistenceFilter@28bad32a, org.springframework.security.web.header.HeaderWriterFilter@3c3ec668, org.springframework.security.web.csrf.CsrfFilter@288460dd, org.springframework.security.web.authentication.logout.LogoutFilter@1c9cd096, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter@3990c331, org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter@1e8d4ac1, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@2d61d2a4, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@380d9a9b, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@abf2de3, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@2a5c161b, org.springframework.security.web.session.SessionManagementFilter@3c1fd3e5, org.springframework.security.web.access.ExceptionTranslationFilter@3d7055ef, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@5d27725a]

Btw we are using spring-security version 4.1.3.!

question from:https://stackoverflow.com/questions/40418441/spring-security-cors-filter

Answer 1

Since Spring Security 4.1, this is the proper way to make Spring Security support CORS (also needed in Spring Boot 1.4/1.5):

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedMethods("HEAD", "GET", "PUT", "POST", "DELETE", "PATCH");
    }
}

and:

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
//        http.csrf().disable();
        http.cors();
    }

    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        final CorsConfiguration configuration = new CorsConfiguration();
        configuration.setAllowedOrigins(ImmutableList.of("*"));
        configuration.setAllowedMethods(ImmutableList.of("HEAD",
                "GET", "POST", "PUT", "DELETE", "PATCH"));
        // setAllowCredentials(true) is important, otherwise:
        // The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'.
        configuration.setAllowCredentials(true);
        // setAllowedHeaders is important! Without it, OPTIONS preflight request
        // will fail with 403 Invalid CORS request
        configuration.setAllowedHeaders(ImmutableList.of("Authorization", "Cache-Control", "Content-Type"));
        final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", configuration);
        return source;
    }
}

Do not do any of below, which are the wrong way to attempt solving the problem:

• http.authorizeRequests().antMatchers(HttpMethod.OPTIONS, "/**").permitAll();
• web.ignoring().antMatchers(HttpMethod.OPTIONS);

Reference: http://docs.spring.io/spring-security/site/docs/4.2.x/reference/html/cors.html