public async Task <LoginResponse> LoginAsync(string authority, string resource, string clientId, string returnUri, bool isRefresh = false)
{
var authContext = new AuthenticationContext(authority);
if (authContext.TokenCache.ReadItems().Any())
{
authContext = new AuthenticationContext(authContext.TokenCache.ReadItems().First().Authority);
}
try
{
AuthenticationResult authResult;
if (isRefresh)
{
authResult = await authContext.AcquireTokenSilentAsync(resource, clientId);
}
else
{
var controller = ViewControllerHelpers.GetVisibleViewController();
var uri = new Uri(returnUri);
var platformParams = new PlatformParameters(controller);
authResult = await authContext.AcquireTokenAsync(resource, clientId, uri, platformParams);
}
var result = new LoginResponse
{
AuthHeader = authResult.CreateAuthorizationHeader(),
AccessToken = authResult.AccessToken,
AccessTokenType = authResult.AccessTokenType,
ExpiresOn = authResult.ExpiresOn,
ExtendedLifetimeToken = authResult.ExtendedLifeTimeToken,
IdToken = authResult.IdToken,
TenantId = authResult.TenantId
};
result.Profile.DisplayableId = authResult.UserInfo.DisplayableId;
result.Profile.FamilyName = authResult.UserInfo.FamilyName;
result.Profile.GivenName = authResult.UserInfo.GivenName;
result.Profile.UniqueId = authResult.UserInfo.UniqueId;
return(result);
}
catch (Exception e)
{
var _controller = ViewControllerHelpers.GetVisibleViewController();
var alert = UIAlertController.Create("Error", e.Message, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Cancel", UIAlertActionStyle.Cancel, null));
_controller.BeginInvokeOnMainThread(() =>
{
_controller.PresentViewController(alert, true, null);
});
AppCenterHelper.Report(e);
clearTokenFromCache(authority);
return(null);
}
}
void DisplayAlert(string title, string message, Action completionHandler = null)
{
var alert = UIAlertController.Create(title, message, UIAlertControllerStyle.Alert);
alert.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Cancel, null));
ViewControllerHelpers.GetVisibleViewController().PresentViewController(alert, true, completionHandler);
}