private bool CheckLicense()
{
//Initialize variables with default values
MagentixLicense _lic = null;
byte[] _certPubicKeyData;
string _msg = string.Empty;
LicenseStatus _status = LicenseStatus.UNDEFINED;
//Read public key from assembly
Assembly _assembly = Assembly.GetExecutingAssembly();
using (MemoryStream _mem = new MemoryStream())
{
Stream stream = _assembly.GetManifestResourceStream("Magentix.Presentation.LicenseVerify.cer");
stream.CopyTo(_mem);
_certPubicKeyData = _mem.ToArray();
}
//Check if the XML license file exists
if (File.Exists("license.lic"))
{
_lic = (MagentixLicense)LicenseHandler.ParseLicenseFromBASE64String(
typeof(MagentixLicense),
File.ReadAllText("license.lic"),
_certPubicKeyData,
out _status,
out _msg);
if (_lic.TrialVersion == true && _lic.TrialDate < DateTime.Now)
{
MessageBox.Show("Your trial version is expired. Please buy full version.", "Warning", MessageBoxButton.OK, MessageBoxImage.Warning);
return(false);
}
}
else
{
_status = LicenseStatus.INVALID;
_msg = "Your copy of this application is not activated";
}
switch (_status)
{
case LicenseStatus.VALID:
return(true);
default:
return(false);
}
}
private void btnActivate_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrWhiteSpace(txtActivationCode.Text))
{
MessageBox.Show("Please input license", "MagentixPOS", MessageBoxButton.OK, MessageBoxImage.Warning);
return;
}
//Check the activation string
LicenseStatus _licStatus = LicenseStatus.UNDEFINED;
string _msg = string.Empty;
byte[] CertificatePublicKeyData;
Assembly _assembly = Assembly.GetExecutingAssembly();
using (MemoryStream _mem = new MemoryStream())
{
Stream stream = _assembly.GetManifestResourceStream("Magentix.Presentation.LicenseVerify.cer");
stream.CopyTo(_mem);
CertificatePublicKeyData = _mem.ToArray();
}
MagentixLicense _lic = (MagentixLicense)LicenseHandler.ParseLicenseFromBASE64String(typeof(MagentixLicense), txtActivationCode.Text.Trim(), CertificatePublicKeyData, out _licStatus, out _msg);
switch (_licStatus)
{
case LicenseStatus.VALID:
if (_lic.TrialVersion == true && _lic.TrialDate < DateTime.Now)
{
MessageBox.Show("This key is expired. Please buy full version key.", "Warning", MessageBoxButton.OK, MessageBoxImage.Warning);
txtActivationCode.Select(0, txtActivationCode.Text.Length);
txtActivationCode.Focus();
return;
}
File.WriteAllText("license.lic", txtActivationCode.Text);
this.DialogResult = true;
return;
case LicenseStatus.CRACKED:
case LicenseStatus.INVALID:
case LicenseStatus.UNDEFINED:
MessageBox.Show("License is INVALID", "MagentixPOS", MessageBoxButton.OK, MessageBoxImage.Error);
return;
default:
return;
}
}
