public async Task <IActionResult> OnGetCallbackAsync(string returnUrl = null, string remoteError = null)
{
returnUrl = returnUrl ?? Url.Content("~/");
if (remoteError != null)
{
ErrorMessage = $"Error from external provider: {remoteError}";
return(RedirectToPage("./Login", new { ReturnUrl = returnUrl }));
}
var info = await _externalLoginService.GetCurrentLoginContextAsync();
if (info == null)
{
ErrorMessage = "Error loading external login information during confirmation.";
return(RedirectToPage("./Login", new { ReturnUrl = returnUrl }));
}
var result = await _externalLoginService.SignInAsync();
if (result.Succeeded)
{
_logger.LogInformation("{Name} logged in with {LoginProvider} provider.", info.Principal.Identity.Name, info.ProviderName);
return(LocalRedirect(returnUrl));
}
else
{
// If the user does not have an account, then ask the user to create an account.
ReturnUrl = returnUrl;
ProviderDisplayName = info.ProviderName;
if (info.Principal.HasClaim(c => c.Type == ClaimTypes.Email))
{
Input = new InputModel
{
Email = info.Principal.FindFirstValue(ClaimTypes.Email)
};
}
return(Page());
}
}