正在诊断登录重定向循环

本文关键字：重定向 循环 登录 诊断 | 更新日期: 2023-09-27 18:25:32

我的ISP最近在我的网站上遇到了几个权限问题，我的网站托管在一个共享的IIS盒子上。

我的MVC5应用程序在默认页面上没有需要身份验证的代码，但有一些区域可以进行

我已经将我的应用程序Web发布到了一个子目录"test"中，当我尝试加载任何[AllowAnonymous]页面时，我目前正在获得一个无限重定向循环，结果会得到404。

http://www.mywebsite.co.uk/test/Account/Login?ReturnUrl=%2Ftest%2FAccount%2FLogin%3FReturnUrl%3D%252Ftest%252FAccount%252FLogin%253FReturnUrl%253D%25252Ftest%25252FAccount%25252FLogin%25253FReturnUrl%25253D%2525252Ftest%2525252FAccount%2525252FLogin%2525253FReturnUrl%2525253D%252525252Ftest%252525252FAccount%252525252FLogin%252525253FReturnUrl%252525253D%25252525252Ftest%25252525252FAccount%25252525252FLogin%25252525253FReturnUrl%25252525253D%2525252525252Ftest%2525252525252FAccount%2525252525252FLogin%2525252525253FReturnUrl%2525252525253D%252525252525252Ftest%252525252525252FAccount%252525252525252FLogin%252525252525253FReturnUrl%252525252525253D%25252525252525252Ftest%25252525252525252FAccount%25252525252525252FLogin%25252525252525253FReturnUrl%25252525252525253D%2525252525252525252Ftest%2525252525252525252FAccount%2525252525252525252FLogin%2525252525252525253FReturnUrl%2525252525252525253D%252525252525252525252Ftest%252525252525252525252FAccount%252525252525252525252FLogin%252525252525252525253FReturnUrl%252525252525252525253D%25252525252525252525252Ftest%25252525252525252525252FAccount%25252525252525252525252FLogin%25252525252525252525253FReturnUrl%25252525252525252525253D%2525252525252525252525252Ftest%2525252525252525252525252FAccount%2525252525252525252525252FLogin%2525252525252525252525253FReturnUrl%2525252525252525252525253D%252525252525252525252525252Ftest%252525252525252525252525252FAccount%252525252525252525252525252FLogin%252525252525252525252525253FReturnUrl%252525252525252525252525253D%25252525252525252525252525252Ftest%25252525252525252525252525252FAccount%25252525252525252525252525252FLogin%25252525252525252525252525253FReturnUrl%25252525252525252525252525253D%2525252525252525252525252525252Ftest%2525252525252525252525252525252FAccount%2525252525252525252525252525252FLogin%2525252525252525252525252525253FReturnUrl%2525252525252525252525252525253D%252525252525252525252525252525252Ftest%252525252525252525252525252525252FAccount%252525252525252525252525252525252FLogin%252525252525252525252525252525253FReturnUrl%252525252525252525252525252525253D%25252525252525252525252525252525252Ftest%25252525252525252525252525252525252Fhome%25252525252525252525252525252525252Ffeedback

（我认为这个404是查询字符串太长的结果）

如果我将"相同"的代码发布到test2，则不会出现此问题。

我试着从_layout.cshtml中删除项目，看看我是否能发现是什么调用导致了这种情况，但在剥离所有项目后，我仍然会出现这个错误。

有人对我可以用来诊断问题所在有什么建议吗？

正在诊断登录重定向循环

通常这就是问题所在，登录页面不允许未经授权的用户：你会得到无尽的循环-未经授权用户不允许看到登录页面，所以他被重定向到登录页面以获得授权。

因此，在控制器中的登录操作上需要[AllowAnonymous]属性，或者添加到web.config：

 <location path="/test/account/login">
  <system.web>
     <authorization>
        <allow users="?"/>
     </authorization>
  </system.web>
 </location>
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