public async Task <IActionResult> ExternalLoginConfirmation(ExternalLoginVM model, string returnUrl = null)
{
if (ModelState.IsValid)
{
// Get the information about the user from the external login provider
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
throw new ApplicationException("Error loading external login information during confirmation.");
}
var user = new ApplicationUser {
UserName = model.Email, Email = model.Email
};
var result = await _userManager.CreateAsync(user);
if (result.Succeeded)
{
result = await _userManager.AddLoginAsync(user, info);
if (result.Succeeded)
{
await _signInManager.SignInAsync(user, isPersistent : false);
_logger.LogInformation("User created an account using {Name} provider.", info.LoginProvider);
return(RedirectToLocal(returnUrl));
}
}
AddErrors(result);
}
ViewData["ReturnUrl"] = returnUrl;
return(View(nameof(ExternalLogin), model));
}
public IEnumerable <ExternalLoginVM> GetExternalLogins(string returnUrl,
bool generateState = false)
{
var descriptions = Authentication.GetExternalAuthenticationTypes();
var logins = new List <ExternalLoginVM>();
string state;
if (generateState)
{
state = RandomOAuthStateGenerator.Generate(StrengthInBits);
}
else
{
state = null;
}
foreach (var description in descriptions)
{
var vm = new ExternalLoginVM
{
Name = description.Caption,
Url = Url.Route("ExternalLogin", new
{
provider = description.AuthenticationType,
response_type = "token",
client_id = Startup.PublicClientId,
redirect_uri = new Uri(Request.RequestUri, returnUrl).AbsoluteUri,
state = state
}),
State = state
};
logins.Add(vm);
}
return(logins);
}
