public static bool ValiteLimt(ref string note)
{
try
{
//2018-05-29#30
note = string.Empty;
string pass_word = AppConfigHelper.GetConfig("pass_word");
string tempLimit = DesBase.DesDecrypt(pass_word, _key);
int sIndex = tempLimit.IndexOf('#');
string sTime = tempLimit.Substring(0, sIndex);
string limit = tempLimit.Substring(sIndex + 1);
DateTime stime = Convert.ToDateTime(sTime);
DateTime endtime = stime.AddDays(int.Parse(limit));
if (DateTime.Compare(DateTime.Now.Date, endtime) > 0)
{
return(false);
}
if (DateTime.Compare(DateTime.Now.Date, endtime.AddDays((-1) * _warnTime)) > 0)
{
TimeSpan tSpan = endtime.Subtract(DateTime.Now.Date).Duration();
string time = tSpan.Days.ToString();
note = "系统剩余使用时间" + time + "天";
}
return(true);
}
catch (Exception ex)
{
note += "验证码错误,请输入正确的注册码！\r\n" + ex.Message;
return(false);
}
}
/// <summary>
/// 验证软件使用状态 0无限期 1试用期大于15天 2试用期小于15天 3过期，必须注册
/// </summary>
/// <param name="validityKey">使用期字符串秘钥</param>
/// <returns>0无限期 1试用期，早于提示注册时间 2试用期，晚于提示注册时间 3过期，必须注册</returns>
public static int CheckValidity(string validityKey)
{
try
{
if (validityKey == null)
{
return(3);
}
string[] validityInfo = DesBase.DesDecrypt(validityKey, _key).Split('#');
if (validityInfo[0] == "0")
{
return(0);
}
DateTime startTime = Convert.ToDateTime(validityInfo[0]);
DateTime endTime = startTime.AddDays(int.Parse(validityInfo[1]));
if (DateTime.Compare(DateTime.Now.Date, endTime) > 0)
{
return(3);
}
if (DateTime.Compare(DateTime.Now.Date, endTime.AddDays((-1) * _warnTime)) > 0)
{
return(2);
}
return(1);
}
catch (Exception ex)
{
throw new ArgumentNullException("CheckValidity:" + ex.Message);
}
}
public static string CreateKey(string licence)
{
return(DesBase.DesEncrypt(licence, _key));
}