HTTP状态403-找不到预期的CSRF令牌.会话是否已过期? [英] HTTP Status 403 - Expected CSRF token not found.Has session expired?

问题描述

我有一个Spring MVC应用程序，视图层基于jsp.有时我收到此错误消息，并且此消息为true，会话确实过期了.如果我再次登录，那一切都很好. 我正在使用以下机制发送CSRF令牌: 在第2部分中，添加了元标记:

I have a Spring MVC application, view layer is jsp based.At times I get this error message and this message is true, session really got expired.If I login once again then it is all fine. I am using following mechanism to send CSRF token: In head section 2 meta tags are added:

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

在每个Ajax调用中，都会检索令牌和标头:

In every Ajax call,token and header are retrieved:

var token = $("meta[name='_csrf']").attr("content");
var header = $("meta[name='_csrf_header']").attr("content");

然后使用XMLHttpRequest此标头&令牌已发送:

Then with XMLHttpRequest this header & token are sent:

$.ajax({
        type : "GET",
        url : xxx,

        beforeSend : function(xhr) {
            xhr.setRequestHeader(header, token);
        },
        complete : function() {
        },
        success : function(response) {
        }       
});

大多数jsp页面都是这样.我试图在警报消息中捕获令牌&；有用.如果会话已通过一个页面过期，我想将用户重定向到登录页面，该页面将显示用户被重定向的原因.该怎么办?

This is how it is in most jsp pages.I have tried to capture the token in an alert message & it works. I want to redirect the user to the login page if the session has expired via a page which will show why the user is getting redirected. How to go about this?

在服务器端Spring中，我们使用了基于xml的配置:

In the server side Spring we have used xml based configuraton:

<http auto-config="true"  use-expressions="true">
  ...
  <csrf/>
</http>

推荐答案

我在application-security.xml中添加了以下内容，它解决了此特定情况下的问题，尽管我在某些其他情况下也面临CSRF异常:

I added following to application-security.xml which solved the problem for this particular scenario, though I am facing CSRF exception in some other scenario :

<http auto-config="true"  use-expressions="true">
...

<session-management invalid-session-url="/login">
        <concurrency-control expired-url="/login" />
    </session-management>
</http>

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