public async Task <IActionResult> ExternalLoginCallback(string remoteError = null)
{
if (remoteError != null)
{
ModelState.AddModelError(string.Empty, $"Error from external provider: {remoteError}");
await FillViewBagWithExternalLoginsAsync();
return(View(nameof(Login)));
}
ExternalLoginResult externalLoginResult = null;
try
{
externalLoginResult = await _accountsService.ExternalLoginAsync();
if (externalLoginResult.SignInSucceeded || externalLoginResult.CreateUserSucceeded)
{
return(RedirectToAction(IndexActionName, HomeControllerName));
}
if (externalLoginResult.IsLockedOut)
{
return(RedirectToAction(nameof(Lockout)));
}
}
catch (ArgumentException e)
{
ModelState.AddModelError(string.Empty, e.Message);
}
await FillViewBagWithExternalLoginsAsync();
foreach (var error in externalLoginResult.CreateUserErrors)
{
ModelState.AddModelError(string.Empty, error);
}
return(View(nameof(Login)));
}