Spring oauth/token 上的启动休息服务选项 401

Question

我正在使用 spring 启动来进行简单的休息服务。要在 Angular 2 中使用它，我在 oauth/token 端点上检索令牌时遇到 CORS 问题。

Chrome 中的错误信息如下。

error message

zone.js:101 OPTIONS http://192.168.0.9:8080/api/oauth/token 
XMLHttpRequest cannot load http://192.168.0.9:8080/api/oauth/token. Response to preflight request doesn't pass access control check: 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.

相关文件如下。

MyConfig.java

@Configuration
public class MyConfig {
    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurerAdapter() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("**")
                        .allowedOrigins("*").allowedMethods("POST, GET, HEAD, OPTIONS")
                .allowCredentials(true)
                .allowedHeaders("Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers")
                .exposedHeaders("Access-Control-Allow-Origin,Access-Control-Allow-Credentials")
                .maxAge(10);
            }
        };
    }
}

OAuth2ResourceServerConfig.java

@Configuration
@EnableResourceServer
class OAuth2ResourceServerConfig extends ResourceServerConfigurerAdapter {
    @Override
    public void configure(HttpSecurity http) throws Exception {
        http
            .csrf().disable()
            .anonymous()
            .and()
                .authorizeRequests()
                .antMatchers(HttpMethod.OPTIONS,"**").permitAll()
                .antMatchers("/authenticated/**").authenticated()
                ;
    }

}

我是 java 和 spring 的新手。我发现了一些类似的问题，例如，但我真的不明白如何让它在 spring 启动时工作。

请注意正常的休息控制器端点工作正常。问题是 oauth/token，选项请求 returns 401 状态。

请在 spring 引导中显示一些工作代码。谢谢！

Answer 1

您可以将此 CORS 过滤器添加到您的项目中

    @Component
    @Order(Ordered.HIGHEST_PRECEDENCE)

    public class SimpleCORSFilter implements Filter {

    @Override
    public void init(FilterConfig fc) throws ServletException {
    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp,
            FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) resp;
        HttpServletRequest request = (HttpServletRequest) req;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with, authorization, Content-Type, Authorization, credential, X-XSRF-TOKEN");

        if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
            response.setStatus(HttpServletResponse.SC_OK);
        } else {
            chain.doFilter(req, resp);
        }

    }

    @Override
    public void destroy() {
    }

 }

Answer 2

这里是原生Spring框架解决方案：

@Bean
public CorsFilter corsFilter(CorsConfiguration config) {
    log.debug("Registering CORS filter");
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/api/**", config);
    source.registerCorsConfiguration("/v2/api-docs", config);
    source.registerCorsConfiguration("/oauth/**", config);
    return new CorsFilter(source);
}

Answer 3

如果您使用 spring boot + Spring OAuth，您必须添加

@Order(Ordered.HIGHEST_PRECEDENCE)

到您的 CORS 过滤器

@Configuration
@Order(Ordered.HIGHEST_PRECEDENCE)
public class CORSFilter implements Filter {

    private FilterConfig config;

    public static final String CREDENTIALS_NAME = "Access-Control-Allow-Credentials";
    public static final String ORIGIN_NAME = "Access-Control-Allow-Origin";
    public static final String METHODS_NAME = "Access-Control-Allow-Methods";
    public static final String HEADERS_NAME = "Access-Control-Allow-Headers";
    public static final String MAX_AGE_NAME = "Access-Control-Max-Age";

    @Override
    public void destroy() {

    }

    @Override
    public void doFilter(ServletRequest req, ServletResponse resp,
                         FilterChain chain) throws IOException, ServletException {
        HttpServletResponse response = (HttpServletResponse) resp;
        HttpServletRequest request = (HttpServletRequest) req;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with, authorization, Content-Type, Authorization, credential, X-XSRF-TOKEN");

        if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
            response.setStatus(HttpServletResponse.SC_OK);
        } else {
            chain.doFilter(req, resp);
        }

    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        config = filterConfig;
    }
}

Answer 4

浏览器通过带有 OPTIONS header 的请求检查 CORS 设置。如果您配置了授权，OPTIONS 请求将被阻止为未授权。

您只需在 WebConfigurerAdapter 中添加 cors 支持即可。

@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // ...
        http.cors();
    }
}

查看此 link 了解更多信息：https://www.baeldung.com/spring-security-cors-preflight

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