/// <summary>
/// Starts the asynchronous authentication operation with three inputs.
/// You can call this method multiple times in a single application or across multiple applications at the same time.
/// </summary>
/// <param name="options">The options for the authentication operation.</param>
/// <param name="requestUri">The starting URI of the web service. This URI must be a secure address of https://.</param>
/// <param name="callbackUri">The callback URI that indicates the completion of the web authentication.
/// The broker matches this URI against every URI that it is about to navigate to.
/// The broker never navigates to this URI, instead the broker returns the control back to the application when the user clicks a link or a web server redirection is made.</param>
/// <returns>The way to query the status and get the results of the authentication operation.
/// If you are getting an invalid parameter error, the most common cause is that you are not using HTTPS for the requestUri parameter.</returns>
/// <remarks>When this method is used, no session state or persisted cookies are retained across multiple calls from the same or different apps.
/// This method must be called on the UI thread.</remarks>
public static async Task<WebAuthenticationResult> AuthenticateAsync(WebAuthenticationOptions options, Uri requestUri, Uri callbackUri)
{
#if WINDOWS_UWP || WINDOWS_APP
return await Windows.Security.Authentication.Web.WebAuthenticationBroker.AuthenticateAsync((Windows.Security.Authentication.Web.WebAuthenticationOptions)((int)options), requestUri, callbackUri);
#elif WINDOWS_PHONE_APP
var method = type10.GetRuntimeMethod("AuthenticateAsync", new Type[] { typeof(Windows.Security.Authentication.Web.WebAuthenticationOptions), typeof(Uri), typeof(Uri) });
if (method != null)
{
IAsyncOperation<Windows.Security.Authentication.Web.WebAuthenticationResult> op = (IAsyncOperation<Windows.Security.Authentication.Web.WebAuthenticationResult>)method.Invoke(null, new object[] { (Windows.Security.Authentication.Web.WebAuthenticationOptions)((int)options), requestUri, callbackUri });
var result = await op;
return result;
}
else
{
throw new PlatformNotSupportedException();
}
#elif WINDOWS_PHONE
Result = new WebAuthenticationResult(null, 0, WebAuthenticationStatus.UserCancel);
Frame f = Application.Current.RootVisual as Frame;
if (f != null)
{
if (!f.Dispatcher.CheckAccess())
{
throw new InvalidOperationException("Must be called on UI thread.");
}
Handle = new AutoResetEvent(false);
Uri navUri = new Uri(string.Format("/InTheHand;component/Security/Authentication/Web/WebAuthenticationPage.xaml?uri={0}&returnUri={1}", Uri.EscapeDataString(requestUri.ToString()), Uri.EscapeDataString(callbackUri.ToString())), UriKind.Relative);
f.Navigate(navUri);
await Task.Run(new Func<Task>(WaitResponse));
}
return Result;
#else
throw new PlatformNotSupportedException();
#endif
}