/// <summary>
/// 获取剩余有效时间
/// </summary>
/// <returns></returns>
public static string GetLeftDays()
{
string softDate = DogKeyHelper.ReadString();
if (softDate.Length == 255)
{
MessageBox.Show("友情提示：此软件未获得使用授权，加密狗验证失败！", "授权验证失败", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return("");
}
if (softDate == "")
{
return("");
}
if (softDate == "null")
{
return("");
}
string[] strs = softDate.Split('#');
int duration = int.Parse(strs[1]);
try
{
if (duration >= 25550)
{
return("已终身授权");
}
return(duration.ToString());
}
catch
{
return(duration.ToString());
}
}
/// <summary>
/// 设置到期日期格式 2016-7-20
/// </summary>
/// <param name="date"></param>
public static void SetExirationDate(string date)
{
string[] args = date.Split('-');
if (args.Length != 3)
{
return;
}
int year = int.Parse(args[0]);
int month = int.Parse(args[1]);
int day = int.Parse(args[2]);
if (month > 12 || day > 31)
{
return;
}
DateTime setDate = new DateTime(year, month, day);
var tmp = setDate - DateTime.Now;
int duration = tmp.Days;
Console.WriteLine("Left days" + duration);
string newString = DateTime.Now.ToString("yyyy-MM-dd") + "#" + duration.ToString();
DogKeyHelper.WriteString(newString);
MessageBox.Show("设置成功");
}
/// <summary>
/// 授权一定的时间
/// </summary>
/// <param name="days"></param>
public static void Authorize(int days)
{
string softDate = DogKeyHelper.ReadString();
string[] strs = softDate.Split('#');
if (strs.Length >= 2)
{
string newString = strs[0] + "#" + days;
DogKeyHelper.WriteString(newString);
MessageBox.Show("授权成功");
}
}
/// <summary>
/// 软件使用日期验证
/// </summary>
/// <returns></returns>
public static bool Validate()
{
string softDate = DogKeyHelper.ReadString();
if (softDate.Length == 255)
{
MessageBox.Show("友情提示：此软件未获得使用授权，加密狗验证失败！", "授权验证失败", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
if (softDate == "")
{
return(false);
}
if (softDate == "null")
{
return(false);
}
string[] strs = softDate.Split('#');
try
{
int duration = int.Parse(strs[1]);
DateTime sDate = DateTime.Parse(strs[0]).Date;
DateTime eDate = sDate.AddDays(duration).Date;
if (DateTime.Now.Date < sDate)
{
MessageBox.Show("系统时间不正确，请将系统调整到正确的时间");
return(false);
}
if (DateTime.Now.Date >= sDate && DateTime.Now.Date < eDate)
{
duration = (eDate - DateTime.Now.Date).Days;
string newString = DateTime.Now.ToString("yyyy-MM-dd") + "#" + duration.ToString();
DogKeyHelper.WriteString(newString);
return(true);
}
else
{
MessageBox.Show("友情提示：您的软件使用授权码已过期，请获取新的授权码！", "过期提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
}
catch
{
MessageBox.Show("软件使用授权码格式错误！", "格式错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
}
/// <summary>
/// 加密狗Key验证,MD5验证，程序中存储的ID的MD5
/// </summary>
/// <param name="softKey">加密狗ID 的MD5</param>
/// <returns></returns>
public static bool ConfirmKey(string softKey)
{
string id = DogKeyHelper.GetKey();
if (id == "")
{
return(false);
}
if (softKey != DogKeyHelper.StrMD5(id))
{
MessageBox.Show("友情提示：此软件未获得使用授权，加密狗ID验证失败！", "授权验证失败", MessageBoxButtons.OK, MessageBoxIcon.Warning);
app.Exit();
return(false);
}
return(true);
}
