private bool ValidAuthState(string state, out long id, out string authState)
{
id = 0;
authState = null;
try
{
var data = MD5Helper.ConvertStringToByte(state);
data = TripleDESHelper.Decrypt(data, this._appSettings.GetTripleDESKeyData(), null, CipherMode.ECB, PaddingMode.PKCS7);
var origStr = Encoding.UTF8.GetString(data);
if (!string.IsNullOrWhiteSpace(origStr) && Regex.IsMatch(origStr, @"^\d+_"))
{
var idxS = origStr.IndexOf('_');
var idxE = origStr.LastIndexOf('_');
id = long.Parse(origStr.Substring(0, idxS));
authState = origStr.Substring(idxS + 1, idxE - idxS - 1);
return(true);
}
}
catch { }
return(false);
}
