401 UNAUTHORIZED in SharePoint 2007

最新推荐文章于 2024-11-23 02:02:29 发布

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#sharepoint #object #library #reference #web #application

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本文介绍了一个SharePoint Web Part在不同Web应用程序中遇到的401未授权错误问题。该问题出现在针对匿名用户的站点上，当Web Part尝试访问文档库时出现。通过使用提升权限的方法解决了这一问题。

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I've created a web part that gathers information from a Document Library. It works well under the "admin" web application (we have two web apps: admin site for non-anonymous users; www site for anonymous users. These two sites share the same content).

When I open www site, it shows the empty Web Part when it's not reference to the Document Library. However when it's linked to the document library, it shows 401 UNAUTHORIZED. The same document library can be successfully querried by CQWP from both admin and www sites.

It seemed the SPWeb object enumlated from SPSite object siteCollection's property AllWebs performs security check for every web object.

If the user don't have permission with a particular web object then it throws an error in the upper level which result an 401 page.

Using elevated privileges solved the problem.

SPSecurity.RunWithElevatedPrivileges(delegate()
{
    foreach (SPWeb s in siteCollection.AllWebs)
    {...}
});

MSDN article: http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spsecurity.runwithelevatedprivileges.aspx

My original question at http://stackoverflow.com/questions/2237872/401-unauthorized-in-sharepoint-2007