/// <summary>
/// Make a request to get a valid access Token from the refresh token
/// </summary>
/// <returns>a valid access token from the refresh code request</returns>
public GoogleOAuth2AccessToken GetAuthTokenFromReqeustToken()
{
byte[] contentAsBytes = null;
int contentLength = 0;
//Submit using TCP Protocol
contentAsBytes = Encoding.ASCII.GetBytes(ContentBody);
contentLength = contentAsBytes.Length;
string header = BuildHeader(true, contentLength);
byte[] headerAsBytes = Encoding.ASCII.GetBytes(header);
TcpClient client = new TcpClient(Host, 443);
Stream netStream = client.GetStream();
SslStream sslStream = new SslStream(netStream);
sslStream.AuthenticateAsClient(Host);
sslStream.Write(headerAsBytes);
sslStream.Write(contentAsBytes);
GoogleOAuth2AccessToken token = new GoogleOAuth2AccessToken();
StreamReader reader = new StreamReader(sslStream);
int left;
var quote = Convert.ToString(Convert.ToChar(34));
while (reader.Peek() > 0)
{
string line = reader.ReadLine();
if (line == null) break;
left = line.IndexOf(": ") + 1;
if (left > 0)
{
var result = line.Substring(left).Replace(quote, "").Replace(",", "").Replace(":", "").Trim();
if (line.ToLower().Contains("access_token"))
{
token.access_token = result;
}
else if (line.ToLower().Contains("expires_in"))
{
token.expires_in = result;
}
else if (line.ToLower().Contains("token_type"))
{
token.token_type = result;
}
else if (line.ToLower().Contains("id_token"))
{
token.id_token = result;
}
}
}
sslStream.Close();
return token;
}
//public GoogleOAuth2AccessToken ExchangeCodeForAccessToken(string code, string clientid, string clientsecret, string redirecturi)
//{
// GoogleOAuth2AccessToken token = new GoogleOAuth2AccessToken();
// string encCode = Google.GData.Client.HttpUtility.UrlEncode(code);
// string encClientID = Google.GData.Client.HttpUtility.UrlEncode(clientid);
// string encClientSecret = Google.GData.Client.HttpUtility.UrlEncode(clientsecret);
// string encURL = Google.GData.Client.HttpUtility.UrlEncode(redirecturi);
// string encData = GetDataStringWithScope(encCode, encClientID, encClientSecret, encURL, string.Empty);
// try
// {
// Requestor.TCPRequestor tcpr = new Requestor.TCPRequestor(Requestor.Operation.POST
// , Requestor.HTTPFormat.FORMAT_1_1
// , Requestor.ContentType.X_WWW_FORM_URLENCODED
// , GoogleUtilityConstants.GOOGLE_ACCOUNTS_HOST
// , GoogleUtilityConstants.GOOGLE_AUTH_TOKEN_URI
// , encData
// , null);
// SslStream sslStream = (SslStream)tcpr.SubmitRequest(true);
// StreamReader reader = new StreamReader(sslStream);
// int left;
// var quote = Convert.ToString(Convert.ToChar(34));
// while (reader.Peek() > 0)
// {
// string line = reader.ReadLine();
// if (line == null) break;
// left = line.IndexOf(": ") + 1;
// if (left > 0)
// {
// var result = line.Substring(left).Replace(quote, "").Replace(",", "").Replace(":", "").Trim();
// if (line.ToLower().Contains("access_token"))
// {
// token.access_token = result;
// }
// else if (line.ToLower().Contains("refresh_token"))
// {
// token.refresh_token = result;
// }
// else if (line.ToLower().Contains("expires_in"))
// {
// token.expires_in = result;
// }
// else if (line.ToLower().Contains("token_type"))
// {
// token.token_type = result;
// }
// else if (line.ToLower().Contains("id_token"))
// {
// token.id_token = result;
// }
// }
// }
// //return the token
// return token;
// }
// catch (System.Exception ex)
// {
// ReportError(ex, "ExchangeCodeForToken");
// }
// return null;
//}
/// <summary>
/// Get the authorization Token from a refresh token
/// </summary>
/// <param name="refreshToken">The code to use to get a refresh token</param>
/// <param name="clientid">The application client ID</param>
/// <param name="clientsecret">The secret code for the application</param>
/// <returns>A valid access token generated by the refresh token; expires in 60 min</returns>
public GoogleOAuth2AccessToken GetAuthorizationTokenFromRefreshToken(string refreshToken, string clientid, string clientsecret)
{
GoogleOAuth2AccessToken token = new GoogleOAuth2AccessToken();
string encData = string.Format(GetRefreshTokenDataString(
Google.GData.Client.HttpUtility.UrlEncode(clientid)
, Google.GData.Client.HttpUtility.UrlEncode(clientsecret)
, Google.GData.Client.HttpUtility.UrlEncode(refreshToken)));
try
{
GoogleTCPRequestor gr = new GoogleTCPRequestor(Requestor.Operation.POST
, Requestor.HTTPFormat.FORMAT_1_1
, Requestor.ContentType.X_WWW_FORM_URLENCODED
, GoogleUtilityConstants.GOOGLE_ACCOUNTS_HOST
, GoogleUtilityConstants.GOOGLE_AUTH_TOKEN_URI
, encData
, null
, false);
token = gr.GetAuthTokenFromReqeustToken();
return token;
}
catch (System.Exception ex)
{
ReportError(ex, "GetAuthorizationTokenFromRefreshToken");
}
return null;
}
