收到Spring MVC AccessDeniedException 500错误而不是@PreAuthorized unauth请求的自定义401错误

Question

我正在编写一个Java Spring MVC 4 REST应用程序，该应用程序位于前端设备（网站，移动应用程序等）和数据库之间。我在下面的代码将为每个请求创建一个新会话（因为REST是无状态的），查看请求的Authorization标头，并确认令牌有效并请求经过身份验证。

当用户请求没有有效令牌的安全方法时，我希望将未经授权的请求从500 Access Is Denied消息重定向到401 Unauthorized消息。

这是我到目前为止所做的。

AccessDeniedHandler：

public class Unauthorized401AccessDeniedHandler implements AccessDeniedHandler {
    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response,
                       AccessDeniedException accessDeniedException)
            throws IOException, ServletException {

        response.setStatus(401);
    }
}

WebSecurityConfigurerAdapter：

@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .exceptionHandling()
                .accessDeniedHandler(new Unauthorized401AccessDeniedHandler());

    }
}

过滤器：

public class SecurityFilter implements Filter {
    final static Logger logger = Logger.getLogger(SecurityFilter.class);

    @Override
    public void doFilter(ServletRequest req, ServletResponse res,
                         FilterChain chain) throws IOException, ServletException {

        HttpServletRequest request = (HttpServletRequest) req;
        HttpServletResponse response = (HttpServletResponse) res;
        HttpSession session = request.getSession();

        String requestUri = request.getRequestURI();

        session.invalidate();
        SecurityContextHolder.clearContext();

        session = request.getSession(true); // create a new session
        SecurityContext ctx = SecurityContextHolder.createEmptyContext();


        boolean isLoggedIn = false;

        String token = null;
        String authorizationHeader = request.getHeader("authorization");
        if(authorizationHeader != null && authorizationHeader.startsWith("bearer")) {
            String encryptedToken = authorizationHeader.split(" ")[1];
            token = StringUtils.newStringUtf8(Base64.decodeBase64(encryptedToken));

            // confirm user is logged in and authorized here TBD

            isLoggedIn = true;
        }

        PreAuthenticatedAuthenticationToken authentication = null;
        if(isLoggedIn) {
            SessionCredentialsModel authRequestModel = new SessionCredentialsModel();
            authRequestModel.employeeId = 323;
            authRequestModel.firstName = "Danny";
            authRequestModel.lastName = "Boy";
            authRequestModel.token = "this_is_a_test_token";

            authentication = new PreAuthenticatedAuthenticationToken(authRequestModel, token);
        } else {
            authentication = new PreAuthenticatedAuthenticationToken(new SessionCredentialsModel(), null);
        }

        authentication.setAuthenticated(true);
        ctx.setAuthentication(authentication);

        SecurityContextHolder.setContext(ctx);
        chain.doFilter(req, res);
    }

安全模型（又名安全上下文主体）：

public class SessionCredentialsModel {
    public int employeeId;
    public String firstName;
    public String lastName;
    public String token;

    public boolean isAuthenticated() {
        if(employeeId > 0 && token != null) {
            return true;
        }

        return false;
    }
}

最后是控制器：

  @RequestMapping(value = "/", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE)
    @PreAuthorize("principal.isAuthenticated()")
    public ResponseEntity<LoginResponseModel> create() {
        LoginResponseModel responseModel = new LoginResponseModel();
        responseModel.statusCode = 55;
        responseModel.token = "authorized model worked!";

        return new ResponseEntity<LoginResponseModel>(responseModel, HttpStatus.OK);
    }

当我运行没有Authorization标头的方法时，我得到了这个错误（而不是我想要得到的错误）：

HTTP Status 500 - Request processing failed; nested exception is org.springframework.security.access.AccessDeniedException: Access is denied

type Exception report

message Request processing failed; nested exception is org.springframework.security.access.AccessDeniedException: Access is denied

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.security.access.AccessDeniedException: Access is denied
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    net.pacificentertainment.middletier.app.security.SecurityFilter.doFilter(SecurityFilter.java:73)
root cause

org.springframework.security.access.AccessDeniedException: Access is denied
    org.springframework.security.access.vote.AffirmativeBased.decide(AffirmativeBased.java:84)
    org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:233)
    org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:65)
    org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
    net.pacificentertainment.middletier.app.controllers.EmployeeController$$EnhancerBySpringCGLIB$$b6765b64.create(<generated>)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    java.lang.reflect.Method.invoke(Method.java:498)
    org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
    org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
    org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
    org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
    org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
    org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    net.pacificentertainment.middletier.app.security.SecurityFilter.doFilter(SecurityFilter.java:73)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.43 logs.

Apache Tomcat/8.0.43

我不知道为什么我无法获得未经授权的请求以返回401 - 或500以外的任何其他状态代码。

您怎么看？

Answer 1

好的伙伴们，无法从社区获得任何帮助但我确实找到了解决方案 - 虽然它不是一个直接的解决方案。

@ControllerAdvice
public class SecurityExceptionHandler extends ResponseEntityExceptionHandler {

    @ExceptionHandler({AccessDeniedException.class})
    public ResponseEntity<Object> handleAccessDeniedException(Exception ex, WebRequest request) {
        if(ex.getMessage().toLowerCase().indexOf("access is denied") > -1) {
            return new ResponseEntity<Object>("Unauthorized Access", new HttpHeaders(), HttpStatus.UNAUTHORIZED);
        }

        return new ResponseEntity<Object>(ex.getMessage(), new HttpHeaders(), HttpStatus.INTERNAL_SERVER_ERROR);
    }
}

我的应用程序中的这个新文件将允许我控制异常期间发生的事情。现在我可以手动检查问题，看看是否＆＃34;访问被拒绝＆＃34;然后重定向到401工作。上面的问题是重定向到401的代码没有被击中。此代码已执行。

同样，这并不是一个直接的解决方案，因为我们正在操纵不同的Spring MVC以及一种黑客行为的默认行为。

如果有人有更优雅的解决方案，请发帖。

Answer 2

出现此错误是因为 java 的 AuthenticationEntryPoint 可以用 500 状态覆盖或映射错误。

您可以使用在

中实现的下一个代码来解决这个问题

@Order(Ordered.HIGHEST_PRECEDENCE)
@ControllerAdvice
public class GlobalExceptionHandler extends ResponseEntityExceptionHandler implements AuthenticationEntryPoint  {

 @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException ) throws IOException, ServletException {    
      response.setContentType(MediaType.APPLICATION_JSON_VALUE);
      response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
      response.getOutputStream().println("{ \"error\": \"" + authException.getMessage() + "\" }");
    }

    @ExceptionHandler(value = { AccessDeniedException.class })
    public void commence(HttpServletRequest request, HttpServletResponse response, AccessDeniedException ex ) throws IOException {
      response.setContentType(MediaType.APPLICATION_JSON_VALUE);
      response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
      response.getOutputStream().println("{ \"error\": \"" + ex.getMessage() + "\" }");
    }

使用此代码，您可以捕获 @PreAuthorize annotacion 抛出的 AccessDeniedException

Answer 3

我假设您没有使用Spring Boot-可能是因为您没有在容器中注册springSecurityFilterChain吗？

堆栈跟踪不显示任何Spring Security过滤器被调用。您的自定义AccessDeniedHandler将在位于ExceptionTranslationFilter的{​​{1}}中被调用。但是看来您的方法安全拦截器正在抛出springSecurityFilterChain，而该陷阱不会在任何地方被捕获。

签出reference guide。

Answer 4

我还得到了一个HTTP 500，我期望它是403。对我来说，这是Spring 5中Spring Security配置错误的结果。我将过滤器链配置为允许对import i18nTranslatorForJsonTemplates from "i18n-translator-for-json-templates"; const result = i18nTranslatorForJsonTemplates(en_lang, template); console.log(JSON.stringify(result)); /*output { "platformType": "Android", "ownershipMode": "COBO", "version": 1, "description": "Command Schema For 'Company Owned/Business Only'", "label": "COBO3" } */ 端点的所有请求。

/pages

同时，我在同一http.csrf().disable() .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS) .and() .addFilterBefore(preAuthFilter, BasicAuthenticationFilter.class) .authorizeRequests() .antMatchers("/pages/**", "/sessions/").permitAll() .anyRequest() .authenticated(); 端点上添加了@PreAuthorize注释。

/pages

这将导致@PreAuthorize("hasAuthority('ORG_ADMIN')") @GetMapping("/pages/{uniqueUrlName}") public ResponseEntity<Page> page(@PathVariable("uniqueUrlName") String uniqueUrlName) { // implementation here } 被跳过，然后org.springframework.security.web.access.ExceptionTranslationFilter被作为常规应用程序异常处理，在我的情况下，是由AccessDeniedException类中的@ExceptionHandler方法处理的。

删除@ControllerAdvice配置可解决此问题。现在，我用未经身份验证的请求访问端点时看到403。