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 _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
ErrorMessage = "Error loading external login information.";
return(RedirectToPage("./Login", new { ReturnUrl = returnUrl }));
}
// Sign in the user with this external login provider if the user already has a login.
var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent : false, bypassTwoFactor : true);
if (result.Succeeded)
{
_logger.LogInformation("{Name} logged in with {LoginProvider} provider.", info.Principal.Identity.Name, info.LoginProvider);
return(LocalRedirect(returnUrl));
}
if (result.IsLockedOut)
{
return(RedirectToPage("./Lockout"));
}
else
{
// If the user does not have an account, then ask the user to create an account.
ReturnUrl = returnUrl;
LoginProvider = info.LoginProvider;
if (info.Principal.HasClaim(c => c.Type == ClaimTypes.Email))
{
Input = new InputModel
{
Email = info.Principal.FindFirstValue(ClaimTypes.Email)
};
}
return(Page());
}
}
public async Task <IActionResult> ExternalLoginCallback(string returnUrl = null)
{
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
return(RedirectToAction(nameof(Login)));
}
// Sign in the user with this external login provider if the user already has a login.
var result = await _signInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent : false);
if (result.Succeeded)
{
_logger.LogInformation(5, "User logged in with {Name} provider.", info.LoginProvider);
return(RedirectToLocal(returnUrl));
}
if (result.RequiresTwoFactor)
{
return(RedirectToAction(nameof(SendCode), new { ReturnUrl = returnUrl }));
}
if (result.IsLockedOut)
{
return(View("Lockout"));
}
else
{
// If the user does not have an account, then ask the user to create an account.
ViewData["ReturnUrl"] = returnUrl;
ViewData["LoginProvider"] = info.LoginProvider;
var email = info.ExternalPrincipal.FindFirstValue(ClaimTypes.Email);
return(View("ExternalLoginConfirmation", new ExternalLoginConfirmationViewModel {
Email = email
}));
}
}
public async Task <IActionResult> OnPostConfirmationAsync(string email, string returnUrl = null)
{
returnUrl = returnUrl ?? Url.Content("~/");
// Get the information about the user from the external login provider
var info = await _signInManager.GetExternalLoginInfoAsync();
if (info == null)
{
ErrorMessage = "Error loading external login information during confirmation.";
return(RedirectToPage("./Login", new { ReturnUrl = returnUrl }));
}
if (ModelState.IsValid)
{
var user = CreateUser();
await _userStore.SetUserNameAsync(user, email, CancellationToken.None);
await _emailStore.SetEmailAsync(user, email, CancellationToken.None);
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(LocalRedirect(returnUrl));
}
}
foreach (var error in result.Errors)
{
ModelState.AddModelError(string.Empty, error.Description);
}
return(Content(result.ToString()));
}
LoginProvider = info.LoginProvider;
ReturnUrl = returnUrl;
return(null);
}
public async Task <IActionResult> SignInCompleteAsync()
{
string returnUrl = "/";
//returnUrl = returnUrl ?? "/";
var info = await SignInManager.GetExternalLoginInfoAsync();
if (info == null)
{
// El login no es válido o no se ha completado
return(BadRequest());
}
//var userid = info.Principal.Claims.FirstOrDefault(c => c.Type == ClaimTypes.NameIdentifier);
//var name = info.Principal.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Name);
//var identityAtDb = await UserManager.FindByLoginAsync(info.LoginProvider, info.ProviderKey);
//if (identityAtDb == null)
//{
// identityAtDb = await UserManager.FindByEmailAsync(email);
// if(identityAtDb == null)
// {
// identityAtDb = new MyUser();
// identityAtDb.Email = email;
// }
//}
//var userAtIdentity = await UserManager.FindByEmailAsync
var result = await SignInManager.ExternalLoginSignInAsync(info.LoginProvider, info.ProviderKey, isPersistent : false, bypassTwoFactor : true);
if (result.Succeeded)
{
return(Ok());
}
if (result.IsLockedOut)
{
return(Forbid());
}
else
{
// La idea es: si el usuario no tiene una cuenta creada y enlazada con el proveedor (hubiera pasado por result.Succeeded)
// exijimos (si aplica) que se cree una cuenta.
// Podemos coger los Claims que nos provee el servicio externo.
var email = info.Principal.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Email)?.Value;
if (string.IsNullOrWhiteSpace(email))
{
return(SignOut());
}
var identityUser = new MyUser();
await UserStore.SetUserNameAsync(identityUser, email, System.Threading.CancellationToken.None);
await EmailStore.SetEmailAsync(identityUser, email, System.Threading.CancellationToken.None);
var createResult = await UserManager.CreateAsync(identityUser);
if (createResult.Succeeded)
{
await SignInManager.SignInAsync(identityUser, isPersistent : false);
return(Redirect("/"));
}
else
{
foreach (var error in createResult.Errors)
{
ModelState.AddModelError(error.Code, error.Description);
}
return(BadRequest(ModelState));
}
}
}
