无法使用前导../退出顶级目录

Question

我有一个asp.net网站有了它我们有登录页面管理区仅用于管理所有的网站允许所有 - 我要问如何定义它的正确的安全配置,我得到这个错误

Cannot use a leading .. to exit above the top directory. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Web.HttpException: Cannot use a leading .. to exit above the top directory.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace: 


[HttpException (0x80004005): Cannot use a leading .. to exit above the top directory.]
   System.Web.Util.UrlPath.ReduceVirtualPath(String path) +8862087
   System.Web.Util.UrlPath.Reduce(String path) +52
   System.Web.Util.UrlPath.Combine(String appPath, String basepath, String relative) +214
   System.Web.UI.Control.ResolveClientUrl(String relativeUrl) +180
   System.Web.UI.WebControls.Image.AddAttributesToRender(HtmlTextWriter writer) +68
   System.Web.UI.WebControls.WebControl.RenderBeginTag(HtmlTextWriter writer) +20
   System.Web.UI.WebControls.WebControl.Render(HtmlTextWriter writer) +20
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +163
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32
   System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +51
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
   System.Web.UI.Control.Render(HtmlTextWriter writer) +10
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
   System.Web.UI.Page.Render(HtmlTextWriter writer) +29
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266

我的配置文件:

 <authentication mode="Forms">
  <forms name=".ASPXFORMSAUTH" protection="All" loginUrl="Admin/LoginPage.aspx" path="/" enableCrossAppRedirects="true">
  </forms>
</authentication>
<authorization>
  <deny users="*" />
</authorization>

Answer 1

这意味着您的网页指的是位于文件夹一级的文件夹,但您的网页已经位于网站的根文件夹中,因此相对路径无效.根据您的异常消息判断,它看起来像图像控件导致问题.

你必须有这样的东西:

<asp:Image ImageUrl="..\foo.jpg" />

但由于页面本身位于网站的根文件夹中,因此无法将内容引用到一级,这是领导者..\正在做的事情.

Answer 2

您可以使用~/img/myImage.png而不是../img/myImage.png在ASP.NET页面中避免此错误.

Answer 3

你有一个风格的图像或图标链接="../",如果"../"有效,将超出网站的顶部,如下所示:

图片:

http://example.com/Images/test.jpg

页

http://example.com/Pages/test.aspx

在该页面上有效:../Images/test.jpg
会抛出错误:../../Images/test.jpg