public static bool TryParse(string tokenText, out ResponseToken token)
{
token = null;
if (string.IsNullOrEmpty(tokenText))
{
return(false);
}
string textToDecypt = HttpUtility.UrlDecode(tokenText);
string[] vector = null;
if (!SsoCipher.TryParseVector(textToDecypt, out vector))
{
return(false);
}
if (vector.Length != 5)
{
return(false);
}
string userId = vector[0];
DateTime timeStamp = Convert.ToDateTime(vector[1]);
int expire = Convert.ToInt32(vector[2]);
string seed = vector[3];
int resultCode = Convert.ToInt32(vector[4]);
token = new ResponseToken(userId, timeStamp, expire, seed, resultCode);
return(true);
}
public static string GetRedirectToAppUrl(string returnUrl, ResponseToken token)
{
char appendChar = '?';
if (returnUrl.IndexOf('?') != -1)
{
appendChar = '&';
}
string redirectUrl = string.Format("{0}{1}{2}={3}", returnUrl, appendChar, Constants.ResponseToken, token.Encode());
return(redirectUrl);
}
public static bool Authenticate(out ResponseToken token)
{
string tokenText = Request[Constants.ResponseToken];
if (!ResponseToken.TryParse(tokenText, out token))
{
return(false);
}
if (token.Seed != Seed)
{
return(false);
}
return(true);
}
