Spring - CORS 不适用于安全配置

Question

我开发了一个带有 spring webflux 后端的角度应用程序。到目前为止，CorsFilter 工作正常并允许来自前端的请求。

然后我添加了一个 SecurityConfig。从那时起，CorsFilter 停止工作，我在角度应用程序中遇到异常:

Access to XMLHttpRequest at 'http://localhost:8080/users/999/folders/%2F/media/' from origin 'http://localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

这个过滤器工作正常:

@Configuration
public class CorsFilter {

    private static final String FRONTEND_LOCALHOST = "http://localhost:4200";
    private static final String FRONTEND_STAGING = "https://somehost.github.io";

    @Bean
    CorsWebFilter corsWebFilter() {
        CorsConfiguration corsConfig = new CorsConfiguration();
        corsConfig.applyPermitDefaultValues();
        corsConfig.addAllowedMethod(HttpMethod.PUT);
        corsConfig.addAllowedMethod(HttpMethod.DELETE);
        corsConfig.setAllowedOrigins(Arrays.asList(FRONTEND_LOCALHOST, FRONTEND_STAGING));

        UrlBasedCorsConfigurationSource source =
                new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", corsConfig);

        return new CorsWebFilter(source);
    }
}

然后我使用以下 SecurityConfig 添加了授权(不记名 token ):

@EnableWebFluxSecurity
@EnableReactiveMethodSecurity
public class SecurityConfiguration {

    @Bean
    public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
        http.cors().and().csrf()
            .csrfTokenRepository(CookieServerCsrfTokenRepository.withHttpOnlyFalse())
            .and()
            .authorizeExchange()
            .anyExchange().authenticated()
            .and()
            .oauth2ResourceServer()
            .jwt();
        return http.build();
    }

安全配置似乎不再考虑我的 CorsFilter。我指出需要在配置中明确添加 corsfilter，但我发现的示例没有用。我希望有人能提供帮助并知道原因。

编辑:为了解决重复问题:我已经尝试将 cors() 和 cors().configurationSource(corsConfig()) 添加到我的安全配置中，但没有有帮助。

Answer 1

我在 Enable CORS in Spring 5 Webflux? 中找到了一种工作方式通过实现自定义 corsfilter。

但是我仍然对这个解决方案不满意，因为它看起来很像一个解决方法。

我终于找到了罪魁祸首......一个很尴尬。我发布的 SecurityConfig 位于错误的包中(它不小心位于默认包中)，因此配置没有被选中。

当我将代码粘贴到安全配置时，问题中的 cors 过滤器也开始工作。

所以我最终的 SecurityConfig 看起来像这样:

import java.util.Arrays;

import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.method.configuration.EnableReactiveMethodSecurity;
import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
import org.springframework.security.config.web.server.ServerHttpSecurity;
import org.springframework.security.web.server.SecurityWebFilterChain;
import org.springframework.security.web.server.csrf.CookieServerCsrfTokenRepository;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsConfigurationSource;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;

@EnableWebFluxSecurity
@EnableReactiveMethodSecurity
public class SecurityConfiguration {

    private static final String FRONTEND_LOCALHOST = "http://localhost:4200";
    private static final String FRONTEND_STAGING = "https://somehost.github.io";

    @Bean
    public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
        http
                .csrf()
                .csrfTokenRepository(CookieServerCsrfTokenRepository.withHttpOnlyFalse())
                .and()
                .authorizeExchange()
                .anyExchange().authenticated()
                .and()
                .oauth2ResourceServer()
                .jwt();
        return http.build();
    }


    @Bean
    CorsConfigurationSource corsConfiguration() {
        CorsConfiguration corsConfig = new CorsConfiguration();
        corsConfig.applyPermitDefaultValues();
        corsConfig.addAllowedMethod(HttpMethod.PUT);
        corsConfig.addAllowedMethod(HttpMethod.DELETE);
        corsConfig.setAllowedOrigins(Arrays.asList(FRONTEND_LOCALHOST, FRONTEND_STAGING));

        UrlBasedCorsConfigurationSource source =
                new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", corsConfig);
        return source;
    }
}