AuthenticateFormsUser with no password

Question

I believe in SharePoint 2007 you could authenticate a user programatically (without a password) using something like this: FormsAuthentication.RedirectFromLoginPage(username, false);

In SharePoint 2010 since FBA moved to claims we need to use something like this: SPClaimsUtility.AuthenticateFormsUser(site, username, password);

Is there an equivalent using SharePoint 2010 that you can use that does not require a password?

Answer 1

I think there is a small confusion here.

The RedirectFromLoginPage method comes from System.Web.Security class, which is not a SharePoint class. So, you should be able to call this method even in SharePoint 2010 by specifying using System.Web.Security.

Moreover this method is not used for authenticating a user. It only redirects an authenticated user back to the originally requested URL or the default URL. The parameter username of this method should be an authenticated user. Check the usage here.

Whenever you call RedirectFromLoginPage method, you will be calling it inside the Membership.ValidateUser(username,password) method to authenticate the user first.

Using the method SPClaimsUtility.AuthenticateFormsUser would be preferable.

Answer 2

I ended up writing my own custom membership and roles provider. This allowed me to not have to use the default FBA configuration in SharePoint 2010 that now uses Claims. This article got me started. I then customized to meet my requirements.

http://blog.sharedove.com/adisjugo/index.php/2011/01/05/writing-a-custom-membership-provider-and-using-it-for-fba-forms-based-authentication-in-sharepoint-2010-from-the-scratch/

Answer 3

You can check if anonymous access is enabled on

Please check this Site

http://mysharepointwork.blogspot.in/2011/05/check-if-anonymous-access-is-enabled.html