private async Task <TokenResponse> RequestToken(string tokenRequestBody)
{
// sends the request
HttpWebRequest tokenRequest = (HttpWebRequest)WebRequest.Create(tokenEndpoint);
tokenRequest.Method = "POST";
// tokenRequest.Headers.Add(HttpRequestHeader.Authorization, string.Format("Basic {0}", clientSecret));
tokenRequest.ContentType = "application/x-www-form-urlencoded";
//tokenRequest.Accept = "Accept=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
byte[] _byteVersion = Encoding.ASCII.GetBytes(tokenRequestBody);
tokenRequest.ContentLength = _byteVersion.Length;
Stream stream = tokenRequest.GetRequestStream();
await stream.WriteAsync(_byteVersion, 0, _byteVersion.Length);
stream.Close();
try
{
// gets the response
WebResponse tokenResponse = await tokenRequest.GetResponseAsync();
using (StreamReader reader = new StreamReader(tokenResponse.GetResponseStream()))
{
// reads response body
string responseText = await reader.ReadToEndAsync();
var token = JsonConvert.DeserializeObject <TokenResponse>(responseText);
currentToken = token;
AuthEvent.Invoke(this, true);
SaveToken();
return(token);
}
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
var response = ex.Response as HttpWebResponse;
if (response != null)
{
Console.WriteLine("HTTP: " + response.StatusCode);
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
// reads response body
string responseText = await reader.ReadToEndAsync();
Console.WriteLine(responseText);
}
}
}
}
AuthEvent.Invoke(this, false);
return(null);
}
public async Task StartAuth()
{
var savedToken = Properties.Settings.Default.AuthToken;
if (savedToken != null)
{
// Attempt to use auth code
currentToken = savedToken;
var accountManager = App.provider.GetService(typeof(AccountManager)) as AccountManager;
var result = false;
try
{
result = await accountManager.GetAccount(true) != null;
}
catch (UnauthorizedAccessException _)
{
// Do nothing
}
if (result)
{
// Token success
AuthEvent.Invoke(this, true);
return;
}
else
{
AuthEvent.Invoke(this, false);
}
try
{
result = await RefreshToken() != null && await accountManager.GetAccount(true) != null;
}
catch (UnauthorizedAccessException _)
{
// Do nothing
}
if (result)
{
// Refresh succeeded and token success
AuthEvent.Invoke(this, true);
return;
}
currentToken = null;
}
}