我刚刚开始尝试 DotNetOpenAuth 项目。修改示例OpenIdRelyingPartyMvc项目，我能够获得一个ClaimRequest用于与 Google 合作的电子邮件。
但是，当我尝试将 OpenID 添加到我自己的项目时，ClaimResponse 总是返回 null。我想知道是否有我缺少的项目或环境设置？
这是我的Authenticate方法：
public ActionResult Authenticate(string returnUrl)
{
var response = openid.GetResponse();
if (response == null)
{
// Stage 2: user submitting Identifier
Identifier id;
if (Identifier.TryParse(Request.Form["openid_identifier"], out id))
{
try
{
IAuthenticationRequest req = openid.CreateRequest(Request.Form["openid_identifier"]);
req.AddExtension(new ClaimsRequest { Email = DemandLevel.Require });
return req.RedirectingResponse.AsActionResult();
}
catch (ProtocolException ex)
{
ViewData["Message"] = ex.Message;
return View("Login");
}
}
else
{
ViewData["Message"] = "Invalid identifier";
return View("Login");
}
}
else
{
// Stage 3: OpenID Provider sending assertion response
switch (response.Status)
{
case AuthenticationStatus.Authenticated:
ClaimsResponse sreg = response.GetExtension<ClaimsResponse>();
if (sreg != null)
{
var email = sreg.Email;
Session["Email"] = email;
}
Session["FriendlyIdentifier"] = response.FriendlyIdentifierForDisplay;
FormsAuthentication.SetAuthCookie(response.ClaimedIdentifier, false);
if (!string.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
case AuthenticationStatus.Canceled:
ViewData["Message"] = "Canceled at provider";
return View("Login");
case AuthenticationStatus.Failed:
ViewData["Message"] = response.Exception.Message;
return View("Login");
}
}
return new EmptyResult();
}
}