当会话在Spring安全性中超时时，处理请求中发现的无效CSRF令牌的最佳方法是什么

java csrf http-status-code-403 session-timeout spring-security

2022-09-04 22:43:43

我正在使用Spring MVC / Security 3.X。问题是，每当会话超时时，我在登录页面上都会得到403，其中“InvalidCsrfTokenException”下方由Spring框架抛出：

    threw exception [org.springframework.security.web.csrf.InvalidCsrfTokenException: Invalid CSRF Token '7b4aefe9-6685-4c70-adf1-0d633680523a' was found on the request parameter '_csrf' or header 'X-CSRF-TOKEN'.] with root cause
org.springframework.security.web.csrf.InvalidCsrfTokenException: Invalid CSRF Token '7b4aefe9-6685-4c70-adf1-0d633680523a' was found on the request parameter '_csrf' or header 'X-CSRF-TOKEN'.
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:57)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:119)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

正如春季文档中提到的，CSRF超时是一个应该处理的问题。处理这种情况的一种方法是使用自定义AccessDeniedHandler，其中我们有一个拦截CSRF异常。像这样：

static class CustomAccessDeniedHandler extends AccessDeniedHandlerImpl{

    @Override
    public void handle(HttpServletRequest request,
            HttpServletResponse response,
            AccessDeniedException accessDeniedException)
            throws IOException, ServletException {
        if (accessDeniedException instanceof MissingCsrfTokenException
                || accessDeniedException instanceof InvalidCsrfTokenException) {

            //What goes in here???

        }

        super.handle(request, response, accessDeniedException);

    }
}

问题：处理这种情况的最佳方法是什么，而不必刷新页面（这是糟糕的用户体验）或进行无休止的会话？提前感谢您的帮助。

答案 1

我发现当会话在登录页面超时时处理无效CSRF令牌的最简单方法是以下方法之一：

再次将请求重定向到登录页面 vi CustomAccessDeniedHandler：

static class CustomAccessDeniedHandler extends AccessDeniedHandlerImpl{




    @Override
    public void handle(HttpServletRequest request,
            HttpServletResponse response,

  AccessDeniedException accessDeniedException)
    throws IOException, ServletException {
if (accessDeniedException instanceof MissingCsrfTokenException
        || accessDeniedException instanceof InvalidCsrfTokenException) {

    if(request.getRequestURI().contains("login")){
        response.sendRedirect(request.getContextPath()+"/login");                                        
    }
}

super.handle(request, response, accessDeniedException);



 }
}

按照 Neil McGuigan 的建议添加刷新标头：

<meta http-equiv="refresh" content="${pageContext.session.maxInactiveInterval}">

此外，您必须为新的 CustomAccessDeniedHandler 创建一个 Bean 并注册它。以下示例显示了 Java 配置的这一点。

在任何配置类中：

@Bean
public AccessDeniedHandler accessDeniedHandler() {
    return new CustomAccessDeniedHandler();
}

在安全配置中，按如下方式修改配置方法：

@Override
protected void configure(final HttpSecurity http) throws Exception {
    http
      // ...
      .and()
      .exceptionHandling().accessDeniedHandler(accessDeniedHandler());
}

另请参阅此处。

一个更理想的解决方案将是Spring安全在其框架内处理这种情况。

答案 2

使用Spring Security时，必须通过以下方式发送，有以下几种方式：'_csrf'

形式：

<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/>

在阿贾克斯：

<head> <meta name="_csrf" content="${_csrf.token}"/>  <meta name="_csrf_header" content="${_csrf.headerName}"/>  </head>

$(function () {
  var token = $("meta[name='_csrf']").attr("content");
  var header = $("meta[name='_csrf_header']").attr("content");
  $(document).ajaxSend(function(e, xhr, options) {
    xhr.setRequestHeader(header, token);
  });
});

资料来源：http://docs.spring.io/autorepo/docs/spring-security/3.2.0.CI-SNAPSHOT/reference/html/csrf.html