public async Task AuthenticateAsync()
{
var oauthHelper = new OAuth2Helper(OAuthSettings);
var startUri = new Uri(oauthHelper.GetAuthorizeUrl());
var endUri = new Uri(OAuthSettings.CallbackUrl);
var webAuthenticationResult = await WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions.None, startUri, endUri);
if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.Success)
{
var result = webAuthenticationResult.ResponseData.ToString();
var code = oauthHelper.GetCodeFromCallback(result);
AuthorizationCode = code;
}
else if (webAuthenticationResult.ResponseStatus == WebAuthenticationStatus.ErrorHttp)
{
throw new Exception("HTTP Error returned by AuthenticateAsync.");
//OutputToken("HTTP Error returned by AuthenticateAsync() : " + WebAuthenticationResult.ResponseErrorDetail.ToString());
}
else
{
throw new Exception("Error returned by AuthenticateAsync.");
//OutputToken("Error returned by AuthenticateAsync() : " + WebAuthenticationResult.ResponseStatus.ToString());
}
}