private Tuple<User, IList<string>> GetOrCreateUser(UserInfo id, string email, string displayName)
{
bool emailFromId = !String.IsNullOrEmpty(id.Email);
email = email ?? id.Email;
displayName = displayName ?? id.DisplayName;
IList<string> missingFields = new List<string>();
User user = Auth.Login(id.Provider, id.Identifier);
if (user == null)
{
// Can we find a user with that email?
if (!String.IsNullOrEmpty(email))
{
user = Auth.GetUserByEmail(email);
if (user != null)
{
if (!emailFromId)
{
// We can't just associate them based on the email they typed...
return null;
}
// Associate this credential with the user
Auth.AddCredential(user.Id, id.Provider, id.Identifier);
return Tuple.Create(user, (IList<string>)null);
}
}
else
{
// Need an email address
missingFields.Add("email");
}
if (String.IsNullOrEmpty(displayName))
{
missingFields.Add("displayName");
}
if (missingFields.Count > 0)
{
return Tuple.Create((User)null, missingFields);
}
// Nothing is missing, so we can just create the user
user = Auth.Register(id.Provider, id.Identifier, email, displayName);
}
return Tuple.Create(user, (IList<string>)null);
}
public void AddTokenExchange(string token, UserInfo response)
{
TokenExchanges["fb|" + token] = response;
}
