/// <summary>
/// Begins a server-side authentication flow by navigating the WebAuthenticationBroker
/// to the <paramref name="startUrl"/>.
/// </summary>
/// <param name="startUrl">The URL that the browser-based control should
/// first navigate to in order to start the authenication flow.
/// </param>
/// <param name="endUrl">The URL that indicates the authentication flow has
/// completed. Upon being redirected to any URL that starts with the
/// <paramref name="endUrl"/>, the browser-based control must stop navigating and
/// return the response data to the <see cref="AuthenticationBroker"/>.
/// </param>
/// <param name="loginView">If this control is specified it will be used to do the login,
/// otherwise navigation to a page containing a LoginView will occur.</param>
/// <returns>
/// The object containing the user profile, JSON Web Token signed and the access_token.
/// </returns>
/// <exception cref="InvalidOperationException">
/// Thrown if the user cancels the authentication flow or an error occurs during
/// the authentication flow.
/// </exception>
public Task <Auth0User> AuthenticateAsync(Uri startUrl, Uri endUrl, LoginView loginView = null)
{
this.StartUri = startUrl;
this.EndUri = endUrl;
this.AuthenticationInProgress = true;
if (loginView == null)
{
PhoneApplicationFrame rootFrame = Application.Current.RootVisual as PhoneApplicationFrame;
if (rootFrame == null)
{
throw new InvalidOperationException();
}
//hook up the broker to the page on the event.
rootFrame.Navigated += rootFrame_Navigated;
// Navigate to the login page.
rootFrame.Navigate(this.LoginPageUri);
}
else
{
loginView.Broker = this;
loginView.StartLogin();
}
Task <Auth0User> task = Task <Auth0User> .Factory.StartNew(() =>
{
authenticateFinishedEvent.WaitOne();
if (this.responseStatus != PhoneAuthenticationStatus.Success)
{
string message;
if (this.responseStatus == PhoneAuthenticationStatus.UserCancel)
{
throw new AuthenticationCancelException();
}
else
{
message = string.Format(CultureInfo.InvariantCulture,
"Authentication has failed. {0}",
this.responseErrorDetail);
}
throw new AuthenticationErrorException(message);
}
return(GetTokenStringFromResponseData(this.responseData));
});
return(task);
}
/// <summary>
/// Initiates the authentication operation by pointing the browser control
/// to the PhoneWebAuthenticationBroker.StartUri. If the PhoneWebAuthenticationBroker
/// isn't currently in the middle of an authentication operation, then we immediately
/// navigate back.
/// </summary>
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// Make sure that there is an authentication operation in progress.
// If not, we'll navigate back to the previous page.
if (!Broker.AuthenticationInProgress)
{
this.NavigationService.GoBack();
}
if (!authenticationStarted)
{
authenticationStarted = true;
// Point the browser control to the authentication start page.
LoginView.Broker = Broker;
LoginView.NavigationService = NavigationService;
LoginView.StartLogin();
}
}
