UserController.cs :  » Bloggers » dasBlog » RelyingPartyMvc » Controllers » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using DotNetOpenId.RelyingParty;
using System.Web.Security;

namespace RelyingPartyMvc.Controllers{
  public class UserController : Controller {
    public void Index() {
      if (!User.Identity.IsAuthenticated) Response.Redirect("/User/Login?ReturnUrl=Index");
      RenderView("Index");
    }
    public void Logout() {
      FormsAuthentication.SignOut();
      Response.Redirect("/Home");
    }

    public void Login() {
      // Stage 1: display login form to user
      RenderView("Login");
    }
    public void Authenticate() {
      var openid = new OpenIdRelyingParty();
      if (openid.Response == null) {
        // Stage 2: user submitting Identifier
        openid.CreateRequest(Request.Form["openid_identifier"]).RedirectToProvider();
      } else {
        // Stage 3: OpenID Provider sending assertion response
        switch (openid.Response.Status) {
          case AuthenticationStatus.Authenticated:
            FormsAuthentication.RedirectFromLoginPage(openid.Response.ClaimedIdentifier, false);
            break;
          case AuthenticationStatus.Canceled:
            ViewData["Message"] = "Canceled at provider";
            RenderView("Login");
            break;
          case AuthenticationStatus.Failed:
            ViewData["Message"] = openid.Response.Exception.Message;
            RenderView("Login");
            break;
        }
      }
    }
  }
}