public async Task <IActionResult> GoogleLoginCallback(string remoteError = null)
{
if (remoteError != null)
{
ModelState.AddModelError(string.Empty, $"Invalid Login Attempt: {remoteError}");
return(RedirectToAction("Login"));
}
var info = await SignInMgr.GetExternalLoginInfoAsync();
if (info == null)
{
ModelState.AddModelError(string.Empty, "Error loading external login information.");
return(RedirectToAction("Login"));
}
var googleEmail = info.Principal.FindFirstValue(ClaimTypes.Email);
if (String.IsNullOrEmpty(googleEmail))
{
ModelState.AddModelError(string.Empty, "Could not find an email associated with your google account. Make sure your Google account has a registered email address.");
return(RedirectToAction("Login"));
}
var matchingUser = Context.Users.Where(u => u.Email == googleEmail).FirstOrDefault();
if (matchingUser != null && !Context.UserLogins.Where(u => u.UserId == matchingUser.Id).Any())
{
ModelState.AddModelError(string.Empty, "An account with that email address already exists.");
return(RedirectToAction("Login"));
}
var result = await SignInMgr.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent : false, bypassTwoFactor : true);
if (result.Succeeded)
{
return(RedirectToAction("Index", "Products"));
}
var user = new User
{
Email = googleEmail,
UserName = googleEmail,
FirstName = info.Principal.FindFirstValue(ClaimTypes.GivenName),
LastName = info.Principal.FindFirstValue(ClaimTypes.Surname),
StreetAdress = info.Principal.FindFirstValue(ClaimTypes.StreetAddress),
PostNumber = info.Principal.FindFirstValue(ClaimTypes.PostalCode),
City = info.Principal.FindFirstValue(ClaimTypes.Locality),
Country = info.Principal.FindFirstValue(ClaimTypes.Country),
Currency = "SEK",
PhoneNumber = info.Principal.FindFirstValue(ClaimTypes.MobilePhone),
Password = null,
SecurityStamp = Guid.NewGuid().ToString()
};
await UserMgr.CreateAsync(user);
await UserMgr.AddLoginAsync(user, info);
await SignInMgr.SignInAsync(user, false);
return(RedirectToAction("Index", "Products"));
}