public RegistrationViewModel(IDialogCoordinator instance)
{
GetSW_GUID();
SerialNumber = FingerPrint.GetMAC().Replace(':', '-');
summary = FingerPrint.GetSummary() + "\nMAC\t" + SerialNumber + "\nGUID\t" + appGuid;
dialogCoordinator = instance;
OkCommand = new RelayCommand(OnRegistration);
CancelCommand = new RelayCommand(OnCancel);
LoadedCommand = new RelayCommand(Loaded);
UnloadedCommand = new RelayCommand(Unloaded);
}
private void CheckLicense(string userPermission)
{
UserPermissionLevel = userPermission;
if (userPermission == "SuperAdmin")
{
SwitchToMainView();
}
else
{
if (lastLicense != null && lastLicense.SerialNumber == FingerPrint.GetMAC().Replace(':', '-'))
{
if (lastLicense.Period == 3650 || (DateTime.Today >= lastLicense.Start && DateTime.Today <= lastLicense.End && lastLicense.LastSession <= DateTime.Now))
{
int days = (lastLicense.End.Value - DateTime.Today).Days;
if (days <= 14)
{
ShowMessageAsync("License Warning", "Your license will expire in " + days + " days.\nPlease contact your distribution maintainer for update!", MessageDialogStyle.Affirmative);
}
lastLicense.LastSession = DateTime.Now;
SwitchToMainView();
}
else
{
ShowMessageAsync("License Error", "Application can not be loaded, unauthorized date interrupt occurred (" + lastLicense.Period + " days)! " +
"\nPlease contact your distribution maintainer for update the license!", MessageDialogStyle.Affirmative);
RunRegistrationProcess(lastLicense.Count);
}
}
else if (lastLicense != null && lastLicense.SerialNumber != FingerPrint.GetMAC().Replace(':', '-'))
{
ShowMessageAsync("License Error", "The serial number in the license file does not match your computer’s active serial number" +
"\nPlease contact your distribution maintainer for update the license!", MessageDialogStyle.Affirmative);
RunRegistrationProcess(lastLicense.Count);
}
else
{
RunRegistrationProcess(0);
}
}
}
private Models.Entity.License GenerateNewLicense(int licensePeriod)
{
Assembly assembly = Assembly.GetExecutingAssembly();
var attribute = (GuidAttribute)assembly.GetCustomAttributes(typeof(GuidAttribute), true)[0];
string appGuid = attribute.Value;
string serialNumber = FingerPrint.GetMAC().Replace(':', '-');
string summary = FingerPrint.GetSummary() + "\nMAC\t" + serialNumber + "\nGUID\t" + appGuid;
int numberOfLicenses = Licenses.Count;
string authorizationKey = FingerPrint.GetHash(appGuid + numberOfLicenses.ToString());
string registrationNumber = FingerPrint.GetHash(serialNumber + authorizationKey + licensePeriod.ToString());
Models.Entity.License NewLicense = new Models.Entity.License()
{
ID = Guid.NewGuid(),
Count = ++numberOfLicenses,
SerialNumber = serialNumber,
AuthorizationKey = authorizationKey,
RegistrationNumber = registrationNumber,
Period = licensePeriod,
Start = DateTime.Today,
End = DateTime.Today.Add(new TimeSpan(licensePeriod, 0, 0, 0)),
LastSession = DateTime.Now,
Summary = summary
};
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += (sender, e) =>
{
e.Result = DatabaseService.AddOrUpdate(e.Argument as Models.Entity.License);
};
worker.RunWorkerCompleted += (sender, e) =>
{
int dd = (int)e.Result;
DataDB.RefreshLicenses();
};
worker.RunWorkerAsync(NewLicense);
string LicenseDir = @"\PHRDR\License";
string documentPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
if (!Directory.Exists(documentPath + LicenseDir))
{
Directory.CreateDirectory(documentPath + LicenseDir);
}
string licenseFile = String.Format(@"{0}\License.lph", documentPath + LicenseDir);
File.Create(licenseFile).Close();
string toFile = "Serial Number:\n\t" + serialNumber + "\n" +
"Authorization Key:\n\t" + authorizationKey + "\n" +
"Registration Number:\n\t" + registrationNumber + "\n" +
"Period:\n\t" + licensePeriod + "\n" +
"Start:\n\t" + DateTime.Today + "\n" +
"Last Session:\n\t" + DateTime.Now + "\n" +
"End:\n\t" + DateTime.Today.Add(new TimeSpan(licensePeriod, 0, 0, 0)) + "\n\n" +
"Summary PC:\n" + summary;
File.WriteAllText(licenseFile, toFile);
return(NewLicense);
}
