private async void BuildPaneAsync(AccountsSettingsPane sender, AccountsSettingsPaneCommandsRequestedEventArgs e)
{
var deferral = e.GetDeferral();
try
{
var provider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.microsoft.com", "consumers");
var command = new WebAccountProviderCommand(provider, GetMsaTokenAsync);
e.WebAccountProviderCommands.Add(command);
}
finally
{
deferral.Complete();
}
}
public static IAsyncOperation <WebTokenRequestResult> RequestTokenForWindowAsync(IntPtr hWnd, WebTokenRequest request)
{
IWebAuthenticationCoreManagerInterop webAuthenticationCoreManagerInterop =
WebAuthenticationCoreManager.As <IWebAuthenticationCoreManagerInterop>();
Guid guid = WinRT.GuidGenerator.CreateIID(typeof(IAsyncOperation <WebTokenRequestResult>));
var requestPtr = MarshalInspectable <WebTokenRequest> .FromManaged(request);
webAuthenticationCoreManagerInterop.RequestTokenForWindowAsync(
hWnd,
requestPtr,
ref guid,
out IntPtr result);
return(MarshalInterface <IAsyncOperation <WebTokenRequestResult> > .FromAbi(result));
}
public async Task InitializeProvider(User user)
{
if (this.HasProvider)
{
return;
}
if (user == null)
{
provider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://xsts.auth.xboxlive.com");
}
else
{
provider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://xsts.auth.xboxlive.com", string.Empty, user);
}
}
/// <summary>
/// Gets the currently saved user account.
/// </summary>
private async Task <WebAccount> GetCurrentAccountAsync()
{
string providerId = ApplicationData.Current.LocalSettings.Values[CurrentUserProviderKey]?.ToString();
string accountId = ApplicationData.Current.LocalSettings.Values[CurrentUserKey]?.ToString();
if (providerId == null || accountId == null)
{
return(null);
}
WebAccountProvider provider = await WebAuthenticationCoreManager.FindAccountProviderAsync(providerId);
WebAccount account = await WebAuthenticationCoreManager.FindAccountAsync(provider, accountId);
return(account);
}
/// <summary>
/// Gets an auth token for the user, which can be used to call the Microsoft Graph API.
/// </summary>
private async Task <string> GetTokenAsync()
{
var provider = await GetAadProviderAsync();
var request = new WebTokenRequest(provider, "User.Read", AccountClientId);
request.Properties.Add("resource", "https://graph.microsoft.com");
var result = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(request);
if (result.ResponseStatus != WebTokenRequestStatus.Success)
{
result = await WebAuthenticationCoreManager.RequestTokenAsync(request);
}
return(result.ResponseStatus == WebTokenRequestStatus.Success ?
result.ResponseData[0].Token : null);
}
/// <summary>
/// Checks if the user has credentials stored and tries to automatically log in with them.
/// </summary>
public static async Task TryLogInSilently()
{
if (ApplicationData.Current.RoamingSettings.Values.ContainsKey(RoamingUserKey) &&
ApplicationData.Current.RoamingSettings.Values.ContainsKey(RoamingProviderKey))
{
string username = ApplicationData.Current.RoamingSettings.Values[RoamingUserKey].ToString();
var vault = new PasswordVault();
var credential = vault.RetrieveAll().FirstOrDefault(x =>
x.Resource == VaultKey && x.UserName == username);
if (null == credential)
{
return;
}
// MSA tokens are short-lived, so the existing cached token is likely invalid
// Silently request a new token
if (ApplicationData.Current.RoamingSettings.Values[RoamingProviderKey].ToString() == "msa")
{
var msaProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.microsoft.com", "consumers");
WebTokenRequest request = new WebTokenRequest(msaProvider, "wl.basic, wl.emails");
WebTokenRequestResult result = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(request);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
await LoginOrRegisterAsync(new ProviderInfo
{
Provider = ProviderType.Msa,
Token = result.ResponseData[0].Token
});
}
}
// Facebook and google tokens last 60 days, so we can probably re-log in with one
// If not, it will fail and show the OOBE expereince
else
{
credential.RetrievePassword();
await LoginOrRegisterAsync(new ProviderInfo
{
Email = username,
Provider = (ProviderType)Enum.Parse(typeof(ProviderType),
ApplicationData.Current.RoamingSettings.Values[RoamingProviderKey].ToString(),
true),
Token = credential.Password
});
}
}
}
private async void Button_DefaultSignIn_Click(object sender, RoutedEventArgs e)
{
defaultProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync(DefaultProviderId);
if (defaultProvider == null)
{
rootPage.NotifyUser("This user does not have a primary account", NotifyType.StatusMessage);
}
else
{
// Set the clientID and scope based on the authority. The authority tells us if the account is a Microsoft account or an Azure AD.
String scope = defaultProvider.Authority == MicrosoftAccountAuthority ? MicrosoftAccountScopeRequested : AzureActiveDirectoryScopeRequested;
String clientID = defaultProvider.Authority == MicrosoftAccountAuthority ? MicrosoftAccountClientId : AzureActiveDirectoryClientId;
AuthenticateWithRequestToken(defaultProvider, scope, clientID);
}
}
public static async Task <IReadOnlyList <WebAccount> > FindAllAccountsAsync(WebAccountProvider provider, string clientID, ICoreLogger logger)
{
FindAllAccountsResult findResult = await WebAuthenticationCoreManager.FindAllAccountsAsync(provider, clientID);
// This is expected to happen with the MSA provider, which does not allow account listing
if (findResult.Status != FindAllWebAccountsStatus.Success)
{
var error = findResult.ProviderError;
logger.Info($"[WAM Proxy] WebAuthenticationCoreManager.FindAllAccountsAsync failed " +
$" with error code {error.ErrorCode} error message {error.ErrorMessage} and status {findResult.Status}");
return(Enumerable.Empty <WebAccount>().ToList());
}
logger.Info($"[WAM Proxy] FindAllWebAccountsAsync returning {findResult.Accounts.Count()} WAM accounts");
return(findResult.Accounts);
}
private async void GetMsaTokenAsync(WebAccountProviderCommand command)
{
var request = new WebTokenRequest(command.WebAccountProvider, "wl.basic");
var result = await WebAuthenticationCoreManager.RequestTokenAsync(request);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
await ProcessSuccessAsync(result);
RaiseLoginComplete();
}
else
{
// If you receive an error when requesting a token, make sure you've associated your app with the Store as described in step one. Your app won't be able to get a token if you skipped this step.
RaiseLoginFailed(result.ResponseStatus);
}
}
//<GetMSAToken>
private async Task <string> GetMicrosoftAccountTokenAsync()
{
var msaProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync(
"https://login.microsoft.com", "consumers");
WebTokenRequest request = new WebTokenRequest(msaProvider, "devcenter_implicit.basic,wl.basic");
WebTokenRequestResult result = await WebAuthenticationCoreManager.RequestTokenAsync(request);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
return(result.ResponseData[0].Token);
}
else
{
return(string.Empty);
}
}
private async Task <UserAccount> GetMsaTokenAsync(WebAccountProviderCommand command)
{
var request = new WebTokenRequest(command.WebAccountProvider, tokenScope);
var result = await WebAuthenticationCoreManager.RequestTokenAsync(request);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
UpdateWebAccount(result.ResponseData[0].WebAccount);
CurrentAccount = await CreateUserAccount(result.ResponseData[0].Token);
return(CurrentAccount);
}
else
{
throw new InvalidOperationException("WebAuthentication Response: " + result.ResponseStatus);
}
}
#pragma warning disable 4014
private void FindAccountCompleted(IAsyncOperation <WebAccountProvider> asyncInfo, AsyncStatus asyncStatus)
{
WebTokenRequest request = new WebTokenRequest(asyncInfo.GetResults());
request.Properties.Add("HttpMethod", "GET");
request.Properties.Add("Url", "https://xboxlive.com");
request.Properties.Add("RequestHeaders", "");
request.Properties.Add("ForceRefresh", "true");
request.Properties.Add("Target", "xboxlive.signin");
request.Properties.Add("Policy", "DELEGATION");
request.Properties.Add("PackageFamilyName", Windows.ApplicationModel.Package.Current.Id.FamilyName);
Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
WebAuthenticationCoreManager.RequestTokenAsync(request).Completed = TokenRequestCompleted;
});
}
// 将指定的 web 账号添加到账号管理界面中
private async Task ShowLogoutUI(AccountsSettingsPaneCommandsRequestedEventArgs e)
{
WebAccountProvider provider = await WebAuthenticationCoreManager.FindAccountProviderAsync(MicrosoftAccountProviderId, ConsumerAuthority);
WebAccount account = await WebAuthenticationCoreManager.FindAccountAsync(provider, _userId);
if (account != null)
{
// 最后一个参数用于指定当用户选择了账号后，会出现哪些功能按钮（我这里测试只有 SupportedWebAccountActions.Remove 是有效的）
WebAccountCommand command = new WebAccountCommand(account, WebAccountCommandInvoked, SupportedWebAccountActions.Remove);
e.WebAccountCommands.Add(command);
}
else
{
_userId = null;
}
}
public static async Task <string> GetWUToken(string accountId)
{
WebAccountProvider provider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.microsoft.com", "consumers");
WebAccount account = await WebAuthenticationCoreManager.FindAccountAsync(provider, accountId);
WebTokenRequest request = new WebTokenRequest(provider, "service::dcat.update.microsoft.com::MBI_SSL", "{28520974-CE92-4F36-A219-3F255AF7E61E}");
WebTokenRequestResult result = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(request, account);
string token = result.ResponseData[0].Token;
var tokenBinary = CryptographicBuffer.ConvertStringToBinary(token, BinaryStringEncoding.Utf16LE);
var tokenBase64 = CryptographicBuffer.EncodeToBase64String(tokenBinary);
Trace.WriteLine("Token = " + token);
Trace.WriteLine("TokenBase64 = " + tokenBase64);
return(tokenBase64);
}
private async Task AddSelectorsAsync(AccountsSettingsPaneCommandsRequestedEventArgs args, bool addOrgAccounts, bool addMsaAccounts, string tenantId = null)
{
if (addOrgAccounts)
{
args.WebAccountProviderCommands.Add(
new WebAccountProviderCommand(
await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.microsoft.com", tenantId ?? "organizations"),
WebAccountProviderCommandInvoked));
}
if (addMsaAccounts)
{
args.WebAccountProviderCommands.Add(
new WebAccountProviderCommand(
await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.microsoft.com", "consumers"),
WebAccountProviderCommandInvoked));
}
}
private void CheckUserSignedOut()
{
try
{
if (this.IsSignedIn)
{
var signedInAccount = WebAuthenticationCoreManager.FindAccountAsync(this.provider, this.WebAccountId);
if (signedInAccount == null)
{
this.UserSignedOut();
}
}
}
catch (Exception)
{
this.UserSignedOut();
}
}
private async Task LogoffAndRemoveAccount()
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey(StoredAccountKey))
{
WebAccountProvider providertoDelete = await WebAuthenticationCoreManager.FindAccountProviderAsync(MicrosoftAccountProviderId, ConsumerAuthority);
WebAccount accountToDelete = await WebAuthenticationCoreManager.FindAccountAsync(providertoDelete, (string)ApplicationData.Current.LocalSettings.Values[StoredAccountKey]);
if (accountToDelete != null)
{
await accountToDelete.SignOutAsync();
}
ApplicationData.Current.LocalSettings.Values.Remove(StoredAccountKey);
SignInButton.Content = "Sign in";
}
}
public async Task <string> GetTokenAsync()
{
var webAccount = await GetWebAccount();
if (webAccount == null)
{
return(null);
}
var request = new WebTokenRequest(webAccount.WebAccountProvider, tokenScope);
var result = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(request, webAccount);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
return(result.ResponseData[0].Token);
}
return(null);
}
/// <summary>
/// Log off and remove user from stored data
/// </summary>
/// <returns></returns>
private async Task LogoffAndRemoveAccount()
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey(StoredAccountKey))
{
WebAccountProvider providertoDelete = await WebAuthenticationCoreManager.FindAccountProviderAsync(MSAProviderId, ConsumerAuthority);
WebAccount accountToDelete = await WebAuthenticationCoreManager.FindAccountAsync(providertoDelete, (string)ApplicationData.Current.LocalSettings.Values[StoredAccountKey]);
if (accountToDelete != null)
{
await accountToDelete.SignOutAsync();
}
ApplicationData.Current.LocalSettings.Values.Remove(StoredAccountKey);
ApplicationData.Current.LocalSettings.Values.Remove(StoredAccountProviderKey);
CustomSettings.IsUserLogged = false;
}
}
public static IAsyncAction ShowAddAccountForWindowAsync(IntPtr hWnd)
{
IWebAuthenticationCoreManagerInterop webAuthenticationCoreManagerInterop =
WebAuthenticationCoreManager.As <IWebAuthenticationCoreManagerInterop>();
IAccountsSettingsPaneInterop accountsSettingsPaneInterop =
AccountsSettingsPane.As <IAccountsSettingsPaneInterop>();
//Guid guid = typeof(IAsyncAction).GUID;
Guid guid = WinRT.GuidGenerator.CreateIID(typeof(IAsyncAction));
//IAccountsSettingsPaneInterop accountsSettingsPaneInterop =
// (IAccountsSettingsPaneInterop)WindowsRuntimeMarshal.GetActivationFactory(typeof(AccountsSettingsPane));
//Guid guid = typeof(IAsyncAction).GUID;
accountsSettingsPaneInterop.ShowAddAccountForWindowAsync(hWnd, ref guid, out IntPtr result);
return(MarshalInterface <IAsyncAction> .FromAbi(result));
}
/// <summary>
/// Gets a user token for a given account.
/// </summary>
private async Task <string> GetUserTokenAsync(WebAccount account, string scope, bool silentlyOnly)
{
Stopwatch timer = Stopwatch.StartNew();
try
{
WebTokenRequest request = new WebTokenRequest(account.WebAccountProvider, scope);
WebTokenRequestResult result = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(request, account);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
Debug.WriteLine("Successfully got user token silently");
return(result.ResponseData[0].Token);
}
HandleTokenError(result);
if (!silentlyOnly)
{
// If we couldn't get the token silently, RequestTokenAsync will prompt the user for necessary action
result = await WebAuthenticationCoreManager.RequestTokenAsync(request, account);
if (result.ResponseStatus == WebTokenRequestStatus.Success)
{
Debug.WriteLine("Successfully got user token with action");
return(result.ResponseData[0].Token);
}
HandleTokenError(result);
}
return(null);
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
return(null);
}
finally
{
timer.Stop();
Debug.WriteLine($"Getting user token took {timer.ElapsedMilliseconds}ms");
}
}
private async Task AddWebAccount(AccountsSettingsPaneCommandsRequestedEventArgs e)
{
WebAccountProvider provider = await WebAuthenticationCoreManager.FindAccountProviderAsync(MicrosoftAccountProviderId, ConsumerAuthority);
String accountID = (String)ApplicationData.Current.LocalSettings.Values[StoredAccountKey];
WebAccount account = await WebAuthenticationCoreManager.FindAccountAsync(provider, accountID);
if (account == null)
{
// The account has most likely been deleted in Windows settings
// Unless there would be significant data loss, you should just delete the account
// If there would be significant data loss, prompt the user to either re-add the account, or to remove it
ApplicationData.Current.LocalSettings.Values.Remove(StoredAccountKey);
}
WebAccountCommand command = new WebAccountCommand(account, WebAccountInvoked, SupportedWebAccountActions.Remove);
e.WebAccountCommands.Add(command);
}
public async Task <string> GetToken(WebAccountProvider provider, string scope, string clientId)
{
string result = string.Empty;
if (null != provider)
{
try
{
// The LenovoID team said we should avoid passing emtpy strings as parameters as per Microsoft's API documentation
if (String.IsNullOrEmpty(scope))
{
scope = "scope";
}
if (String.IsNullOrEmpty(clientId))
{
clientId = "clientid";
}
WebTokenRequest webTokenRequest = new WebTokenRequest(provider, scope, clientId);
WebTokenRequestResult webTokenRequestResult = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(webTokenRequest);
if (webTokenRequestResult != null && webTokenRequestResult.ResponseStatus == WebTokenRequestStatus.Success)
{
if (webTokenRequestResult.ResponseData != null && webTokenRequestResult.ResponseData.Count > 0 && webTokenRequestResult.ResponseData[0].Token != null)
{
//formats userid|token
result = webTokenRequestResult.ResponseData[0].Token;
}
}
//Logger.Log(LogSeverity.Information, "Token received", result.ToString());
}
catch (Exception ex)
{
//Logger.Log(LogSeverity.Information, "Lenovo ID App is not installed.", ex);
}
}
else
{
//Logger.Log(LogSeverity.Information, "LenovoIdAgent: GetTokenSilentlyAsync - provider was null");
}
return(result);
}
/// <summary>
///
/// </summary>
/// <param></param>
/// <returns></returns>
public static async Task <bool> SignIntoAppService()
{
provider = await GetProvider();
String accountID = (String)ApplicationData.Current.LocalSettings.Values[StoredAccountKey];
WebAccount account = await WebAuthenticationCoreManager.FindAccountAsync(provider, accountID);
WebTokenRequest webTokenRequest = new WebTokenRequest(provider, LiveScope, AccountClientId);
WebTokenRequestResult webTokenRequestResult = await WebAuthenticationCoreManager.RequestTokenAsync(webTokenRequest, account);
if (webTokenRequestResult.ResponseStatus == WebTokenRequestStatus.Success)
{
if (await AzureAppService.SignIn(webTokenRequestResult.ResponseData[0].Token))
{
return(true);
}
}
return(false);
}
private async Task ValidateProviderSelection()
{
if (ProvidersComboBox.SelectedItem != null)
{
var targetProvider = ProvidersComboBox.SelectedItem as Provider;
var targetWebAccountProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync(targetProvider.Id);
if (targetWebAccountProvider != null)
{
SetProviderUI(targetProvider);
currentWebAccountProvider = targetWebAccountProvider;
}
else
{
ProvidersComboBox.SelectedIndex = -1;
DebugPrint("Error: The provider was not found in this system");
}
}
}
public static async Task <string> GetAccessToken()
{
string token = null;
//first try to get the token silently
WebAccountProvider aadAccountProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://login.windows.net");
WebTokenRequest webTokenRequest = new WebTokenRequest(aadAccountProvider, String.Empty, clientId, WebTokenRequestPromptType.Default);
webTokenRequest.Properties.Add("authority", "https://login.windows.net");
webTokenRequest.Properties.Add("resource", ResourceUrl);
WebTokenRequestResult webTokenRequestResult = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(webTokenRequest);
//if (webTokenRequestResult.ResponseStatus == WebTokenRequestStatus.Success)
//{
// WebTokenResponse webTokenResponse = webTokenRequestResult.ResponseData[0];
// userAccount = webTokenResponse.WebAccount;
// token = webTokenResponse.Token;
//}
// else if (webTokenRequestResult.ResponseStatus == WebTokenRequestStatus.UserInteractionRequired)
// {
//get token through prompt
webTokenRequest = new WebTokenRequest(aadAccountProvider, String.Empty, clientId, WebTokenRequestPromptType.ForceAuthentication);
webTokenRequest.Properties.Add("authority", "https://login.windows.net");
webTokenRequest.Properties.Add("resource", ResourceUrl);
webTokenRequestResult = await WebAuthenticationCoreManager.RequestTokenAsync(webTokenRequest);
if (webTokenRequestResult.ResponseStatus == WebTokenRequestStatus.Success)
{
WebTokenResponse webTokenResponse = webTokenRequestResult.ResponseData[0];
token = webTokenResponse.Token;
userAccount = webTokenResponse.WebAccount;
}
// }
if (userAccount != null)
{
// save user ID in local storage
_settings.Values["userID"] = userAccount.Id;
_settings.Values["userEmail"] = userAccount.UserName;
_settings.Values["userName"] = userAccount.Properties["DisplayName"];
}
return(token);
}
private async Task LogoffAndRemoveAccount()
{
if (ApplicationData.Current.LocalSettings.Values.ContainsKey(StoredAccountKey))
{
WebAccountProvider providertoDelete = await WebAuthenticationCoreManager.FindAccountProviderAsync(MicrosoftAccountProviderId, ConsumerAuthority);
WebAccount accountToDelete = await WebAuthenticationCoreManager.FindAccountAsync(providertoDelete, (string)ApplicationData.Current.LocalSettings.Values[StoredAccountKey]);
if (accountToDelete != null)
{
await accountToDelete.SignOutAsync();
}
ApplicationData.Current.LocalSettings.Values.Remove(StoredAccountKey);
ApplicationData.Current.LocalSettings.Values.Remove(StoredEmailKey);
AccountListViewItem.Visibility = Visibility.Collapsed;
SignInListViewItem.Visibility = Visibility.Visible;
await Shared.Helpers.LocalStore.PurgeLocalStoreAsync();
App.HomesViewModel = new HomesViewModel();
App.RoomsViewModel = new RoomsViewModel();
Frame rootFrame = Window.Current.Content as Frame;
if (rootFrame == null)
{
rootFrame = new Frame();
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
bool autoSignIn = false;
AccountsSettingsPane.GetForCurrentView().AccountCommandsRequested -= OnAccountCommandsRequested;
rootFrame.Navigate(typeof(Views.SignIn.MainPage), autoSignIn);
}
Window.Current.Activate();
}
}
public async Task AuthenticateWithRequestToken(WebAccountProvider Provider, String Scope, String ClientID, String RequestProperties)
{
DebugPrint("Entering AuthenticateWithRequestToken ...");
try
{
WebTokenRequest webTokenRequest = new WebTokenRequest(
Provider,
Scope,
ClientID);
DebugPrint("Call RequestTokenAsync");
WebTokenRequestResult webTokenRequestResult = await WebAuthenticationCoreManager.RequestTokenAsync(webTokenRequest);
HandleResult(webTokenRequestResult, true); // store returned account locally
}
catch (Exception ex)
{
DebugPrint("RequestToken failed: " + ex.Message);
}
}
private async Task <WebAccountProvider> FindProvider()
{
WebAccountProvider accountProvider;
if (this.CreationContext == null)
{
accountProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://xsts.auth.xboxlive.com");
}
else
{
accountProvider = await WebAuthenticationCoreManager.FindAccountProviderAsync("https://xsts.auth.xboxlive.com", string.Empty, this.CreationContext);
}
if (accountProvider == null)
{
throw new XboxException("Unable to find Xbox Live Identity Provider");
}
return(accountProvider);
}
private async Task Auth()
{
// craft the token request for the Graph api
var wtr = new WebTokenRequest(_auth.AccountProvider, string.Empty, _auth.ClientId);
wtr.Properties.Add("resource", _auth.Resource);
// perform the token request without showing any UX
var wtrr = await WebAuthenticationCoreManager.GetTokenSilentlyAsync(wtr, _auth.Account);
if (wtrr.ResponseStatus == WebTokenRequestStatus.Success)
{
var accessToken = wtrr.ResponseData[0].Token;
_client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
}
else
{
var messageDialog = new MessageDialog("We tried to get a token for the API as the account you are currently signed in, but it didn't work out. Please sign in as a different user.");
await messageDialog.ShowAsync();
}
}