带有oauth2 sso和angular 2 CORS问题的spring zuul网关

Question

您好，我的微服务 sso 设置存在 CORS 问题，但我无法弄清楚原因。我的设置：

oauth 微服务端口 8899：

@Configuration
@Order(-20)
public class EndpointSecurityConfig extends WebSecurityConfigurerAdapter {

private AuthenticationManager authenticationManager;

@Autowired
public EndpointSecurityConfig(AuthenticationManager authenticationManager) {
   this.authenticationManager = authenticationManager;
}

@Override
public void configure(HttpSecurity http) throws Exception {
// @formatter:off

  http
    .formLogin()
      .loginPage("/login")
      .usernameParameter("name")
      .loginProcessingUrl("/login.do").permitAll()
    .and()
      .requestMatchers().antMatchers("/login", "/login.do", "/oauth/authorize", "/oauth/confirm_access")
    .and()
      .authorizeRequests().anyRequest().authenticated();

// @formatter:on
}

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
  auth.parentAuthenticationManager(authenticationManager);
}
}

PrincipalRestController

@RestController
public class PrincipalRestController {

@RequestMapping("/principal")
Principal principal(Principal principal) {
return principal;
 }
}

zuul网关8765端口：

@SpringBootApplication
@EnableEurekaClient
@EnableZuulProxy
@EnableOAuth2Sso
@EnableAutoConfiguration
@EnableFeignClients
public class GatewayApplication extends WebSecurityConfigurerAdapter {

public static void main(String[] args) {
    SpringApplication.run(GatewayApplication.class, args);
}

@Override
  protected void configure(HttpSecurity http) throws Exception {
    // @formatter:off
    http
        .logout().and()
        .authorizeRequests()
            .antMatchers("/index.html", "/**/*.js", "/", "/login").permitAll()
            .anyRequest().authenticated()
            .and()
        .csrf()
            .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse());
    // @formatter:on
  }
}

zuul 配置：

server:
port: 8765

spring:
  aop:
    proxy-target-class: true

security:
  basic:
    enabled: false

oauth2:
  user:
    password: none
  client:
    accessTokenUri: http://localhost:8899/uaa/oauth/token
    userAuthorizationUri: http://localhost:8899/uaa/oauth/authorize
    clientId: client
    clientSecret: secret
  resource:
    userInfoUri: http://localhost:8899/uaa/principal
    preferTokenInfo: false

zuul:
  routes:
    adminPortal:
      url: http://localhost:4200
      path: /**
    user:
      url: http://localhost:8899/uaa/principal

angular 2 应用程序端口 4200 位于网关后面：

服务

@Injectable()
export class LoginService {
 constructor (private http: Http) {}

 getLoggedInUser() : Observable<LoggedInUser>{

 var authHeader = new Headers();
 authHeader.append( "X-Requested-With", "XMLHttpRequest" );

 return this.http.get("/user",{
   headers: authHeader
 })
 .map((res:Response) => res.json())
 .catch((error:any) => Observable.throw(error.json().error || 'Server error'));

}

logout() : Observable<LoggedInUser>{

var authHeader = new Headers();
authHeader.append( "X-Requested-With", "XMLHttpRequest" );

return this.http.post("/logout",{},{headers: authHeader})
.map((res:Response) => res.json())
.catch((error:any) => Observable.throw(error.json().error || 'Server error'));

}
}

组件

@Component({
 selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.sass'],
 providers: [ LoginService ]
})
export class AppComponent {

 loggedInUser: LoggedInUser;

 constructor(
   private loginService: LoginService
  ){
    this.getLoggedInUser();
  }

 getLoggedInUser(){
   // Get all comments
   this.loginService.getLoggedInUser()
   .subscribe(
      loggedInUser => this.loggedInUser = loggedInUser,
     err => {
      console.log(err);
    });
   }

  logout(){
    this.loginService.logout()
   .subscribe(
        loggedInUser => this.loggedInUser = loggedInUser,
        err => {
          console.log(err);
        });
   }

  }

因此，如果我转到浏览器并打开 localhost:8765/ 请求将植根于执行 getLoggedInUser() 调用的主 angular2 页面。这将转到“localhost:8765/user”，因为在此阶段用户未登录，此调用按预期失败并出现 302，但随后自动重定向到登录也会抛出 302，然后使用 302 执行链中的其他调用。在此同时控制台显示

XMLHttpRequest 无法加载 http://localhost:8899/uaa/oauth/authorize?client_id=client&redirect_uri=http://localhost:8765/login&response_type=code&state=woE3Yc。从“http://localhost:8899/uaa/oauth/authorize?client_id=client&redirect_uri=http://localhost:8765/login&response_type=code&state=woE3Yc”重定向到“http://localhost:8899/uaa/login”已被 CORS 策略阻止：请求的资源上不存在“Access-Control-Allow-Origin”标头。 Origin 'http://localhost:8765' 因此不允许访问。

所有这些都在下图中展示：

Answer 1

在您的 Spring 应用程序中配置 CORS：https://spring.io/guides/gs/rest-service-cors/

或此文档链接 https://spring.io/blog/2015/06/08/cors-support-in-spring-framework#javaconfig