private string GetGravatarUri(User user)
{
if (String.IsNullOrEmpty(user.Gravatar))
{
return user.Email.ToGravatarUri(140);
}
else
{
return user.Gravatar.ToGravatarUri(140);
}
}
public ActionResult Authenticate(string returnUrl)
{
var response = OpenId.GetResponse();
if (response == null)
{
Identifier identifier;
if (Identifier.TryParse(Request.Form["openid_identifier"], out identifier))
{
try
{
var request = OpenId.CreateRequest(identifier);
var fetchRequest = new FetchRequest();
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Contact.Email);
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Name.First);
fetchRequest.Attributes.AddRequired(WellKnownAttributes.Name.Last);
request.AddExtension(fetchRequest);
return request.RedirectingResponse.AsActionResult();
}
catch (ProtocolException ex)
{
TempData["Message"] = ex.Message;
return RedirectToAction("Login");
}
}
TempData["Message"] = "Invalid identifier";
return RedirectToAction("Login");
}
switch (response.Status)
{
case AuthenticationStatus.Authenticated:
var fetchResponse = response.GetExtension<FetchResponse>();
var displayName = "";
var email = "";
if (fetchResponse != null)
{
displayName = String.Format("{0} {1}",
fetchResponse.GetAttributeValue(WellKnownAttributes.Name.First),
fetchResponse.GetAttributeValue(WellKnownAttributes.Name.Last));
email = fetchResponse.GetAttributeValue(WellKnownAttributes.Contact.Email);
}
var user = _userRepository.GetByClaimedIdentifier(response.ClaimedIdentifier);
// Create user if he/she does not exist in the database.
if (user == null)
{
user = new User
{
ClaimedIdentifier = response.ClaimedIdentifier,
DisplayName = displayName,
Email = email
};
_userRepository.Save(user);
}
// If the stored display name is not equal to the friendly one from the provider,
// overwrite it.
if (!String.Equals(user.DisplayName, displayName)
|| !String.Equals(user.Email, email))
{
user.DisplayName = displayName;
user.Email = email;
_userRepository.Update(user);
}
// Set auth cookie
FormsAuthentication.SetAuthCookie(user.Id.ToString(), false);
if (!String.IsNullOrEmpty(returnUrl))
{
return Redirect(returnUrl);
}
return RedirectToAction("Profile", new {id = user.Id});
case AuthenticationStatus.Canceled:
TempData["Message"] = "Canceled at provider";
return RedirectToAction("Login");
case AuthenticationStatus.Failed:
TempData["Message"] = response.Exception.Message;
return RedirectToAction("Login");
}
return HttpNotFound();
}
public ActionResult Edit(int? id, User user)
{
if (User.Identity.IsAuthenticated)
{
var dbUser = _userRepository.GetById(id.Value);
dbUser.Gravatar = user.Gravatar;
_userRepository.Update(dbUser);
return RedirectToAction("Settings", new {id = id});
}
else
{
return HttpNotFound();
}
}
