void GenerateLicenseStrings()
{
int currentSerialNumber = startingSerialNumber;
licenseStrings = new string[numberOfLicenseStringsToGenerate];
for (int i = 0; i < numberOfLicenseStringsToGenerate; i++)
{
LicenseKey licenseKey = new LicenseKey();
if (expires)
{
licenseKey.Version = 2;
licenseKey.Options = LicenseKeyOptions.AbsoluteExpirationDate;
licenseKey.ExpirationDate = expirationDate;
}
if (isEval)
{
licenseKey.Type = LicenseKeyType.DesignTimeEvaluation;
}
else
{
licenseKey.Type = LicenseKeyType.DesignTimeRetail;
}
licenseKey.EvaluationDays = evalDays;
licenseKey.SerialNumber = currentSerialNumber;
licenseKey.Hash = licenseKey.CalculateHash(masterKey);
licenseStrings[i] = licenseKey.ToString();
currentSerialNumber++;
}
}
//
// Returns false if it failed to generate run time LicenseKey
// either b/c an exception was thrown when creating or opening a
// registry subkey, or a regKey could not succesfully write to the
// registry.
//
// Returns boolean newKeyInRegistry
//
private bool GenerateRunTimeLicenseKeyFromDesignTime(LicenseKey licenseKey, Type type)
{
Microsoft.Win32.RegistryKey regKey = null;
bool newKeyInRegistry = false;
//
// Modify the license key to be a 'runtime evaluation' license by
// changing its type, setting the expiration date, and recalculating
// its hash value. The serial number stays the same.
//
licenseKey.Type = LicenseKeyType.RuntimeEvaluation;
licenseKey.ExpirationDate = DateTime.Now.AddDays(licenseKey.EvaluationDays);
licenseKey.Hash = licenseKey.CalculateHash(licenseComponent.MasterLicensePassword);
//
// Write out to the Registry. CreateSubKey returns null if it fails.
// If null is returned or an exceptions occurs, catch it and return null.
//
try
{
regKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(registryCacheName + "\\" + type.GUID.ToString());
if (regKey == null)
{
Debug.WriteLine("Failed writing to registry.");
return(newKeyInRegistry);
}
regKey.SetValue("License", (string)licenseKey.ToString());
}
catch (UnauthorizedAccessException e)
{
Debug.WriteLine("Exception writing to registry.");
Debug.WriteLine(e);
return(newKeyInRegistry);
}
catch (System.Security.SecurityException e)
{
Debug.WriteLine("Exception writing to registry.");
Debug.WriteLine(e);
return(newKeyInRegistry);
}
if (regKey != null)
{
regKey.Close();
}
//
// Save the new runtime license key string, as it is needed
// later by GetKey().
//
this.licenseKeyString = licenseKey.ToString();
newKeyInRegistry = true;
return(newKeyInRegistry);
}
void GenerateLicenseStrings()
{
int currentSerialNumber = startingSerialNumber;
licenseStrings = new string[numberOfLicenseStringsToGenerate];
for(int i=0;i<numberOfLicenseStringsToGenerate;i++)
{
LicenseKey licenseKey = new LicenseKey();
if ( expires )
{
licenseKey.Version = 2;
licenseKey.Options = LicenseKeyOptions.AbsoluteExpirationDate;
licenseKey.ExpirationDate = expirationDate;
}
if ( isEval )
{
licenseKey.Type = LicenseKeyType.DesignTimeEvaluation;
}
else
{
licenseKey.Type = LicenseKeyType.DesignTimeRetail;
}
licenseKey.EvaluationDays = evalDays;
licenseKey.SerialNumber = currentSerialNumber;
licenseKey.Hash = licenseKey.CalculateHash( masterKey );
licenseStrings[i] = licenseKey.ToString();
currentSerialNumber++;
}
}
//
// GetKey() is defined by LicFileLicenseProvider. It is called during
// GetLicense() processing in order to populate the LicenseKey property
// of the License object returned to the caller.
//
protected override string GetKey(Type type)
{
string key;
LicenseKey licenseKey;
if (traceSwitch.TraceVerbose)
{
Trace.WriteLine(String.Format("GetKey(type={0})", type));
}
Trace.Indent();
//
// We return whichever license key string we were presented in IsKeyValid(),
// unless we had been presented a 'design time evaluation' license.
// In the latter case, we generate a new license key that encodes the
// evaluation expiration date in it. This license key will subsequenty
// be embedded in the executable being built.
//
key = this.licenseKeyString;
//
// Myk, what do we do if we catch an exception here? we should
// never, because key should be valid. If we return null, will we
// still get a license? In that case, we should never throw any
// exceptions.
//
try
{
licenseKey = new LicenseKey(key);
}
catch (ArgumentException)
{
licenseCheckFailureReason = LicenseCheckFailureReason.InvalidLicenseKey;
return(null);
}
if (traceSwitch.TraceVerbose)
{
Trace.WriteLine("GetKey: License type is " + licenseKey.Type);
}
if (licenseKey.Type == LicenseKeyType.DesignTimeEvaluation)
{
//
// Modify the license key to be a 'runtime evaluation' license by
// changing its type, setting the expiration date, and recalculating
// its hash value.
//
licenseKey.Type = LicenseKeyType.RuntimeEvaluation;
licenseKey.ExpirationDate = DateTime.Now.AddDays(licenseKey.EvaluationDays);
licenseKey.Hash = licenseKey.CalculateHash(licenseComponent.MasterLicensePassword);
key = licenseKey.ToString();
}
if (traceSwitch.TraceVerbose)
{
Trace.WriteLine("Generated license key: " + key);
}
Trace.Unindent();
//
// Return the new license key string to be embedded.
//
return(key);
}
//
// Returns false if it failed to generate run time LicenseKey
// either b/c an exception was thrown when creating or opening a
// registry subkey, or a regKey could not succesfully write to the
// registry.
//
// Returns boolean newKeyInRegistry
//
private bool GenerateRunTimeLicenseKeyFromDesignTime(LicenseKey licenseKey, Type type)
{
Microsoft.Win32.RegistryKey regKey = null;
bool newKeyInRegistry = false;
//
// Modify the license key to be a 'runtime evaluation' license by
// changing its type, setting the expiration date, and recalculating
// its hash value. The serial number stays the same.
//
licenseKey.Type = LicenseKeyType.RuntimeEvaluation;
licenseKey.ExpirationDate = DateTime.Now.AddDays( licenseKey.EvaluationDays );
licenseKey.Hash = licenseKey.CalculateHash( licenseComponent.MasterLicensePassword );
//
// Write out to the Registry. CreateSubKey returns null if it fails.
// If null is returned or an exceptions occurs, catch it and return null.
//
try
{
regKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey( registryCacheName + "\\" + type.GUID.ToString() );
if ( regKey == null )
{
Debug.WriteLine("Failed writing to registry.");
return newKeyInRegistry;
}
regKey.SetValue( "License", (string) licenseKey.ToString() );
}
catch( UnauthorizedAccessException e )
{
Debug.WriteLine("Exception writing to registry.");
Debug.WriteLine(e);
return newKeyInRegistry;
}
catch( System.Security.SecurityException e)
{
Debug.WriteLine("Exception writing to registry.");
Debug.WriteLine(e);
return newKeyInRegistry;
}
if( regKey != null )
{
regKey.Close();
}
//
// Save the new runtime license key string, as it is needed
// later by GetKey().
//
this.licenseKeyString = licenseKey.ToString();
newKeyInRegistry = true;
return newKeyInRegistry;
}
//
// GetKey() is defined by LicFileLicenseProvider. It is called during
// GetLicense() processing in order to populate the LicenseKey property
// of the License object returned to the caller.
//
protected override string GetKey(Type type)
{
string key;
LicenseKey licenseKey;
if( traceSwitch.TraceVerbose )
{
Trace.WriteLine( String.Format( "GetKey(type={0})", type) );
}
Trace.Indent();
//
// We return whichever license key string we were presented in IsKeyValid(),
// unless we had been presented a 'design time evaluation' license.
// In the latter case, we generate a new license key that encodes the
// evaluation expiration date in it. This license key will subsequenty
// be embedded in the executable being built.
//
key = this.licenseKeyString;
//
// Myk, what do we do if we catch an exception here? we should
// never, because key should be valid. If we return null, will we
// still get a license? In that case, we should never throw any
// exceptions.
//
try
{
licenseKey = new LicenseKey( key );
}
catch( ArgumentException)
{
licenseCheckFailureReason = LicenseCheckFailureReason.InvalidLicenseKey;
return null;
}
if( traceSwitch.TraceVerbose )
{
Trace.WriteLine( "GetKey: License type is " + licenseKey.Type);
}
if( licenseKey.Type == LicenseKeyType.DesignTimeEvaluation )
{
//
// Modify the license key to be a 'runtime evaluation' license by
// changing its type, setting the expiration date, and recalculating
// its hash value.
//
licenseKey.Type = LicenseKeyType.RuntimeEvaluation;
licenseKey.ExpirationDate = DateTime.Now.AddDays( licenseKey.EvaluationDays );
licenseKey.Hash = licenseKey.CalculateHash( licenseComponent.MasterLicensePassword );
key = licenseKey.ToString();
}
if( traceSwitch.TraceVerbose )
{
Trace.WriteLine("Generated license key: " + key);
}
Trace.Unindent();
//
// Return the new license key string to be embedded.
//
return key;
}
