可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
I am upgrading a site to use MVC and I am looking for the best way to set up Authentication.
At this point, I have the log-in working off of Active Directory: validating a username and password, and then setting the Auth cookie.
How do I store the user's role information at time of log-in, in order for my controllers to see those roles as the user navigates through the site?
[Authorize(Roles = "admin")]
I have no problem getting a list of roles from Active Directory. I just don't know where to put them so that the controllers will see them.
回答1:
When you authenticate your user, you generate a new GenericPrincipal instance. The constructor takes an array of strings which are the roles for the user. Now set HttpContext.Current.User equal to the generic principal and write the auth cookie, and that should do it.
回答2:
Roles are added to the IPrincipal of the HttpContext. You can create a GenericPrincipal, parse the list of roles in the constructor and set it as HttpContext.User. The GenericPrincipal will then be accessible through User.IsInRole("role") or the [Authorize(Roles="role")] attribute
One way of doing this (in C#) is to add your roles as a comma separated string in the user data parameter when creating your authentication ticket
string roles = "Admin,Member"; FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket( 1, userId, //user id DateTime.Now, DateTime.Now.AddMinutes(20), // expiry false, //do not remember roles, "/"); HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, FormsAuthentication.Encrypt(authTicket)); Response.Cookies.Add(cookie);
Then access the role list from the authentication ticket and create a GenericPrincipal from your Global.asax.cs
protected void Application_AuthenticateRequest(Object sender, EventArgs e) { HttpCookie authCookie = Context.Request.Cookies[FormsAuthentication.FormsCookieName]; if (authCookie != null) { FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value); string[] roles = authTicket.UserData.Split(new Char[] { ',' }); GenericPrincipal userPrincipal = new GenericPrincipal(new GenericIdentity(authTicket.Name),roles); Context.User = userPrincipal; } }
回答3:
For those of you using MVC 4 or Greater you will need to take Jaroslaw Waliszko's advice when making use of David Glenn's answer:
So as stated above, all you need to do is replace the Application_AuthenticateRequest method name with Application_PostAuthenticateRequest to get this to work. Worked like a charm for me! If I was allowed to upvote Jaroslaw and David, I would.
回答4:
回答5:
Could you not drop in either an authorization store role manager or find (e.g. on Codeplex) or write another Role Provider that works with Active Directory to get the groups information?
This would save you the hassle of authenticating the user, getting their roles, and then re-passing that information into the constructor, and would all happen automatically for you as part of the framework.
