使用自定义身份验证时，ASP.NET MVC分配角色

Question

I am using MongoDB to store users and passwords (instead of sql). I have my own mechanism for assigning roles to users. I would like to decorate my controller actions with roles, as follows:

[Authorize(Roles = "Administrators")]

My login code looks like this:

if (mongo.AuthenticateUser(model.UserName, model.Password))
{
    FormsService.SignIn(model.UserName, model.RememberMe);
}

What is the simplest way for me to 'stamp' a users roles onto the user when they first login (the database will provide me with the role names, I just need to set them within the users context). I guess I'm looking for my code to look something like this:

if (mongo.AuthenticateUser(model.UserName, model.Password))
{
    if ((mongo.IsAdmin)
    {
        // How do I grant the admin role???
        SomeSortOfUserContext.Add('Administrators');????????
    }
    FormsService.SignIn(model.UserName, model.RememberMe);
}

Answer 1

Add roles to User Principal in Application_AuthenticateRequest in Global.asax.

Check this out;