private RedirectToRouteResult ExternalLoginOrSingUp(String provider,String providerUserId, String username)
{
using (UsersContext db = new UsersContext())
{
String userName = OAuthWebSecurity.GetUserName(provider, providerUserId);
UserProfile user = db.UserProfiles.FirstOrDefault(x => x.UserName.Equals(username));
// Check if user already exists
if (user == null)
{
// Insert name into the profile table
var userProfile = db.UserProfiles.Add(new UserProfile { UserName = username });
db.SaveChanges();
_userService.AddUser(new User(userProfile.UserName, "", userProfile.UserId));
OAuthWebSecurity.CreateOrUpdateAccount(provider, providerUserId, username);
OAuthWebSecurity.Login(provider, providerUserId, createPersistentCookie: false);
}
else if (userName != null)
{
OAuthWebSecurity.Login(provider, providerUserId, createPersistentCookie: false);
}
else
{
string loginData = OAuthWebSecurity.SerializeProviderUserId(provider, providerUserId);
return RedirectToAction("ExternalLoginConfirmation", new RegisterExternalLoginModel { UserName = username, ExternalLoginData = loginData });
}
}
return RedirectToAction("Index", "Home");
}
public ActionResult ExternalLoginConfirmation(RegisterExternalLoginModel model, string returnUrl)
{
string provider = null;
string providerUserId = null;
if (User.Identity.IsAuthenticated || !OAuthWebSecurity.TryDeserializeProviderUserId(model.ExternalLoginData, out provider, out providerUserId))
{
return RedirectToAction("Manage");
}
if (ModelState.IsValid)
{
// Insert a new user into the database
using (UsersContext db = new UsersContext())
{
UserProfile user = db.UserProfiles.FirstOrDefault(u => u.UserName.ToLower() == model.UserName.ToLower());
// Check if user already exists
if (user == null)
{
// Insert name into the profile table
var userProfile = db.UserProfiles.Add(new UserProfile { UserName = model.UserName });
db.SaveChanges();
_userService.AddUser(new User(userProfile.UserName,"", userProfile.UserId));
OAuthWebSecurity.CreateOrUpdateAccount(provider, providerUserId, model.UserName);
OAuthWebSecurity.Login(provider, providerUserId, createPersistentCookie: false);
return RedirectToLocal(returnUrl);
}
else
{
ModelState.AddModelError("UserName", "User name already exists. Please enter a different user name.");
}
}
}
ViewBag.ProviderDisplayName = provider;
ViewBag.ReturnUrl = returnUrl;
return View(model);
}