// The CLR invokes this when instantiating a licensed COM
// object inside a designtime license context.
// It's purpose is to save away the license key that the CLR
// retrieved using RequestLicKey(). This license key can be NULL.
private void SaveKeyInCurrentContext(IntPtr bstrKey)
{
if (bstrKey != (IntPtr)0)
{
_savedLicenseContext.SetSavedLicenseKey(_savedType, Marshal.PtrToStringBSTR(bstrKey));
}
}
/// <summary>
/// <para>Gets a license for the instance of the component and determines if it is valid.</para>
/// </summary>
public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions)
{
LicFileLicense lic = null;
Debug.Assert(context != null, "No context provided!");
if (context != null)
{
if (context.UsageMode == LicenseUsageMode.Runtime)
{
string key = context.GetSavedLicenseKey(type, null);
if (key != null && IsKeyValid(key, type))
{
lic = new LicFileLicense(this, key);
}
}
if (lic == null)
{
string modulePath = null;
if (context != null)
{
ITypeResolutionService resolver = (ITypeResolutionService)context.GetService(typeof(ITypeResolutionService));
if (resolver != null)
{
modulePath = resolver.GetPathOfAssembly(type.Assembly.GetName());
}
}
if (modulePath == null)
{
modulePath = type.Module.FullyQualifiedName;
}
string moduleDir = Path.GetDirectoryName(modulePath);
string licenseFile = moduleDir + "\\" + type.FullName + ".lic";
Debug.WriteLine($"Looking for license in: {licenseFile}");
if (File.Exists(licenseFile))
{
Stream licStream = new FileStream(licenseFile, FileMode.Open, FileAccess.Read, FileShare.Read);
StreamReader sr = new StreamReader(licStream);
string s = sr.ReadLine();
sr.Close();
if (IsKeyValid(s, type))
{
lic = new LicFileLicense(this, GetKey(type));
}
}
if (lic != null)
{
context.SetSavedLicenseKey(type, lic.LicenseKey);
}
}
}
return(lic);
}
public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions)
{
LicFileLicense license = null;
if (context != null)
{
if (context.UsageMode == LicenseUsageMode.Runtime)
{
string savedLicenseKey = context.GetSavedLicenseKey(type, null);
if ((savedLicenseKey != null) && this.IsKeyValid(savedLicenseKey, type))
{
license = new LicFileLicense(this, savedLicenseKey);
}
}
if (license != null)
{
return(license);
}
string path = null;
if (context != null)
{
ITypeResolutionService service = (ITypeResolutionService)context.GetService(typeof(ITypeResolutionService));
if (service != null)
{
path = service.GetPathOfAssembly(type.Assembly.GetName());
}
}
if (path == null)
{
path = type.Module.FullyQualifiedName;
}
string str4 = Path.GetDirectoryName(path) + @"\" + type.FullName + ".lic";
if (File.Exists(str4))
{
Stream stream = new FileStream(str4, FileMode.Open, FileAccess.Read, FileShare.Read);
StreamReader reader = new StreamReader(stream);
string key = reader.ReadLine();
reader.Close();
if (this.IsKeyValid(key, type))
{
license = new LicFileLicense(this, this.GetKey(type));
}
}
if (license != null)
{
context.SetSavedLicenseKey(type, license.LicenseKey);
}
}
return(license);
}
// Get the license for a type.
public override License GetLicense
(LicenseContext context, Type type, object instance,
bool allowExceptions)
{
String key, path;
StreamReader reader;
// Bail out if we don't have a license context.
if(context == null)
{
return null;
}
// Use the saved key if we saw this type previously.
if(context.UsageMode == LicenseUsageMode.Runtime)
{
key = context.GetSavedLicenseKey(type, null);
if(key != null && IsKeyValid(key, type))
{
return new FileLicense(key);
}
}
// Find the pathname of the assembly containing the type.
#if CONFIG_COMPONENT_MODEL_DESIGN
ITypeResolutionService trs;
trs = (ITypeResolutionService)
context.GetService(typeof(ITypeResolutionService));
if(trs != null)
{
path = trs.GetPathOfAssembly(type.Assembly.GetName());
if(path == null)
{
path = type.Assembly.Location;
}
}
else
#endif
{
path = type.Assembly.Location;
}
// Look for a "*.lic" file for the type.
path = Path.Combine(Path.GetDirectoryName(path),
type.FullName + ".lic");
try
{
reader = new StreamReader(path);
}
catch(Exception)
{
// Could not open the file, so assume unlicensed.
return null;
}
// Read the key from the first line of the license file.
key = reader.ReadLine();
reader.Close();
// Bail out if the key is invalid.
if(key == null || !IsKeyValid(key, type))
{
return null;
}
// Cache the key within the context.
context.SetSavedLicenseKey(type, key);
// Return a new file license to the caller.
return new FileLicense(key);
}
/// <summary>
/// Extract the license for the given type from the given licenseKey
/// </summary>
/// <param name="context">The current licensing context</param>
/// <param name="type">The type to be licensed</param>
/// <param name="licenseKey">The encrypted hexadecimal license key</param>
/// <returns>A license for the given type or NULL if the licenseKey was invalid</returns>
private EncryptedLicense LoadLicense(LicenseContext context, Type type, string licenseKey)
{
// check that validation parameters have been set by the client
//
if (_rsaParameters == null || _designSignature == null || _runtimeSignature == null)
throw new InvalidOperationException("EncryptedLicenseProvider.SetParameters must be called prior to using the EncryptedLicenseProvider");
if (licenseKey == null) return null;
try
{
byte[] encData = FromHex(licenseKey);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
des.Key = _desKey;
des.IV = _desIV;
byte[] data = des.CreateDecryptor().TransformFinalBlock(encData, 0, encData.Length);
// extract the encryption key and encrypted product data - note that the encryption
// key has only 7 significant bytes
//
byte[] encryptionKey = new byte[ArraySize(8)];
byte[] encPayload = new byte[ArraySize(data.Length - keyLength)];
Array.Copy(data, 0, encryptionKey, 0, keyLength);
Array.Copy(data, keyLength, encPayload, 0, encPayload.Length);
// validate that the password matches what the client is expecting
//
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.FromXmlString(_rsaParameters);
if (context.UsageMode == LicenseUsageMode.Designtime)
{
// if design time license requested then the license MUST be a design license
//
if (!rsa.VerifyData(encryptionKey, new SHA1CryptoServiceProvider(), _designSignature)) return null;
}
else
{
// if runtime license requested then first check if the license is a runtime license
// also allow design licenses to work at runtime
//
if (!rsa.VerifyData(encryptionKey, new SHA1CryptoServiceProvider(), _runtimeSignature))
{
if (!rsa.VerifyData(encryptionKey, new SHA1CryptoServiceProvider(), _designSignature)) return null;
}
}
// decrypt the payload using the encryption key
//
des.IV = encryptionKey;
byte[] payload = des.CreateDecryptor().TransformFinalBlock(encPayload, 0, encPayload.Length);
byte[] productData = new byte[ArraySize(payload.Length - 2)];
Array.Copy(payload, 2, productData, 0, productData.Length);
UInt16 serialNo = BitConverter.ToUInt16(payload, 0);
string product = System.Text.ASCIIEncoding.UTF8.GetString(productData);
// if in design time then create a runtime license and save it
//
if (context.UsageMode == LicenseUsageMode.Designtime && type != null)
{
// create the runtime password by encrypting the design time license
//
byte[] encKey = des.CreateEncryptor().TransformFinalBlock(encryptionKey, 0, encryptionKey.Length);
byte[] runtimeKey = new byte[ArraySize(8)];
Array.Copy(encKey, 0, runtimeKey, 0, keyLength);
// encrypt the payload using the runtime key
//
des.IV = runtimeKey;
encPayload = des.CreateEncryptor().TransformFinalBlock(payload, 0, payload.Length);
// Combine the runtime key and encrypted payload
// Note that only the first 7 bytes of the key contain information so we
// only pack this much information - this enables us to reduce the size of
// the final key by 8 bytes.
//
data = new byte[ArraySize(keyLength + encPayload.Length)];
runtimeKey.CopyTo(data, 0);
encPayload.CopyTo(data, keyLength);
// encrypt again to obscure the password - this time using preset encryption key
//
des.IV = _desIV;
encData = des.CreateEncryptor().TransformFinalBlock(data, 0, data.Length);
string runtimeLicenseKey = ToHex(encData);
// save the runtime key into the context
//
context.SetSavedLicenseKey(type, runtimeLicenseKey);
}
return new EncryptedLicense(licenseKey, serialNo, product);
}
catch
{
return null;
}
}
// Get the license for a type.
public override License GetLicense
(LicenseContext context, Type type, object instance,
bool allowExceptions)
{
String key, path;
StreamReader reader;
// Bail out if we don't have a license context.
if (context == null)
{
return(null);
}
// Use the saved key if we saw this type previously.
if (context.UsageMode == LicenseUsageMode.Runtime)
{
key = context.GetSavedLicenseKey(type, null);
if (key != null && IsKeyValid(key, type))
{
return(new FileLicense(key));
}
}
// Find the pathname of the assembly containing the type.
#if CONFIG_COMPONENT_MODEL_DESIGN
ITypeResolutionService trs;
trs = (ITypeResolutionService)
context.GetService(typeof(ITypeResolutionService));
if (trs != null)
{
path = trs.GetPathOfAssembly(type.Assembly.GetName());
if (path == null)
{
path = type.Assembly.Location;
}
}
else
#endif
{
path = type.Assembly.Location;
}
// Look for a "*.lic" file for the type.
path = Path.Combine(Path.GetDirectoryName(path),
type.FullName + ".lic");
try
{
reader = new StreamReader(path);
}
catch (Exception)
{
// Could not open the file, so assume unlicensed.
return(null);
}
// Read the key from the first line of the license file.
key = reader.ReadLine();
reader.Close();
// Bail out if the key is invalid.
if (key == null || !IsKeyValid(key, type))
{
return(null);
}
// Cache the key within the context.
context.SetSavedLicenseKey(type, key);
// Return a new file license to the caller.
return(new FileLicense(key));
}
/// <include file='doc\LicFileLicenseProvider.uex' path='docs/doc[@for="LicFileLicenseProvider.GetLicense"]/*' />
/// <devdoc>
/// <para>Gets a license for the instance of the component and determines if it is valid.</para>
/// </devdoc>
public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions) {
LicFileLicense lic = null;
Debug.Assert(context != null, "No context provided!");
if (context != null) {
if (context.UsageMode == LicenseUsageMode.Runtime) {
string key = context.GetSavedLicenseKey(type, null);
if (key != null && IsKeyValid(key, type)) {
lic = new LicFileLicense(this, key);
}
}
if (lic == null) {
string modulePath = null;
if (context != null) {
ITypeResolutionService resolver = (ITypeResolutionService)context.GetService(typeof(ITypeResolutionService));
if (resolver != null) {
modulePath = resolver.GetPathOfAssembly(type.Assembly.GetName());
}
}
if (modulePath == null) {
modulePath = type.Module.FullyQualifiedName;
}
string moduleDir = Path.GetDirectoryName(modulePath);
string licenseFile = moduleDir + "\\" + type.FullName + ".lic";
Debug.WriteLine("Looking for license in: " + licenseFile);
if (File.Exists(licenseFile)) {
Stream licStream = new FileStream(licenseFile, FileMode.Open, FileAccess.Read, FileShare.Read);
StreamReader sr = new StreamReader(licStream);
string s = sr.ReadLine();
sr.Close();
if (IsKeyValid(s, type)) {
lic = new LicFileLicense(this, GetKey(type));
}
}
if (lic != null) {
context.SetSavedLicenseKey(type, lic.LicenseKey);
}
}
}
return lic;
}
public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions)
{
int num2;
string[] textArray1;
string text1 = "\nEnvironment info:\n";
text1 = text1 + "version: " + DiagramView.VersionName + "\n";
if (Assembly.GetEntryAssembly() != null)
{
text1 = text1 + "entry: ";
try
{
text1 = text1 + Assembly.GetEntryAssembly().FullName;
}
catch (SecurityException)
{
text1 = text1 + "?fn?";
}
object obj1 = null;
try
{
obj1 = Assembly.GetEntryAssembly().EntryPoint;
}
catch (SecurityException)
{
text1 = text1 + "?ep?";
}
if (obj1 != null)
{
text1 = text1 + ", has entry point\n";
}
else
{
text1 = text1 + ", no entry point\n";
}
}
else
{
text1 = text1 + "null entry\n";
}
int num1 = 0;
string text2 = "";
try
{
try
{
text2 = context.GetSavedLicenseKey(type, null);
}
catch (SecurityException exception1)
{
text2 = null;
text1 = text1 + "\n" + exception1.ToString();
}
if (text2 != null)
{
text1 = text1 + "key: " + text2 + "\n";
}
else
{
text1 = text1 + "null key\n";
}
if ((text2 != null) && (text2.Length != 0))
{
goto Label_01AF;
}
try
{
Assembly[] assemblyArray1 = AppDomain.CurrentDomain.GetAssemblies();
Assembly[] assemblyArray2 = assemblyArray1;
for (num2 = 0; num2 < assemblyArray2.Length; num2++)
{
Assembly assembly1 = assemblyArray2[num2];
text1 = text1 + assembly1.FullName + "\n";
try
{
text2 = context.GetSavedLicenseKey(type, assembly1);
}
catch (SecurityException)
{
text2 = null;
}
if ((text2 != null) && (text2.Length > 0))
{
goto Label_015A;
}
}
}
catch (SecurityException)
{
}
Label_015A:
text1 = text1 + DiagramView.myVersionName + "\n";
if (DiagramView.myVersionAssembly != null)
{
text1 = text1 + DiagramView.myVersionAssembly.GetName().Name + "\n";
}
else
{
text1 = text1 + "null licensed assembly\n";
}
if (DiagramView.myVersionName.Length > 0x18)
{
text2 = DiagramView.myVersionName;
}
Label_01AF:
if ((text2 != null) && (text2.Length > 0))
{
num1 = this.Dispose(text2, true);
if (num1 == 4)
{
return new DiagramViewLicense(text2, num1);
}
}
else
{
text2 = "";
RegistryKey key1 = null;
try
{
key1 = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Northwoods Software\Go.NET");
}
catch (SecurityException exception2)
{
text1 = text1 + "\n" + exception2.ToString();
}
if (key1 == null)
{
try
{
key1 = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Northwoods Software\GoDiagram");
}
catch (SecurityException)
{
}
}
if (key1 != null)
{
string text3 = type.Assembly.GetName().Name;
object obj2 = null;
try
{
obj2 = key1.GetValue(text3);
}
catch (SecurityException)
{
}
if ((obj2 != null) && (obj2 is byte[]))
{
text2 = Convert.ToBase64String((byte[])obj2);
}
}
num1 = this.Dispose(text2, false);
if ((num1 == 0) && (key1 != null))
{
text2 = "";
string text4 = type.Assembly.GetName().Name + " eval";
object obj3 = null;
try
{
obj3 = key1.GetValue(text4);
}
catch (SecurityException)
{
}
if ((obj3 != null) && (obj3 is byte[]))
{
text2 = Convert.ToBase64String((byte[])obj3);
}
num1 = this.Dispose(text2, false);
}
if ((num1 >= 4) && (context.UsageMode == LicenseUsageMode.Designtime))
{
context.SetSavedLicenseKey(type, text2);
}
if ((num1 == 4) || (context.UsageMode == LicenseUsageMode.Designtime))
{
return new DiagramViewLicense(text2, num1);
}
}
}
catch (Exception exception3)
{
text1 = text1 + "\n" + exception3.ToString();
}
num2 = num1 & 3;
switch (num2)
{
case 1:
{
string text7 = (num1 > 4) ? "beta" : "evaluation";
textArray1 = new string[0x10] { "Built using ", DiagramViewLicenseProvider.GONAME, " for .NET Windows Forms ", this.StringFloat(DiagramView.Version), Environment.NewLine, "Copyright \x00a9 Northwoods Software, 1998-2004. All Rights Reserved.", Environment.NewLine, "This ", text7, " copy of ", DiagramViewLicenseProvider.GONAME, " is about to expire.", Environment.NewLine, Environment.NewLine, "DO NOT DISTRIBUTE OR DEPLOY THIS SOFTWARE.", Environment.NewLine };
string text8 = string.Concat(textArray1);
if (num1 < 4)
{
text8 = text8 + Environment.NewLine + "Please purchase a license at www.nwoods.com" + Environment.NewLine;
}
if (SystemInformation.UserInteractive)
{
MessageBox.Show(text8, type.Name + " License Check", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
else
{
Console.WriteLine(type.Name + " License Check");
Console.WriteLine(text8);
}
return new DiagramViewLicense(text8, num1);
}
case 2:
{
string text5 = (num1 > 4) ? "beta" : "evaluation";
textArray1 = new string[14] { "Built using ", DiagramViewLicenseProvider.GONAME, " for .NET Windows Forms ", this.StringFloat(DiagramView.Version), Environment.NewLine, "Copyright \x00a9 Northwoods Software, 1998-2004. All Rights Reserved.", Environment.NewLine, "This software is licensed for a limited ", text5, " period.", Environment.NewLine, Environment.NewLine, "DO NOT DISTRIBUTE OR DEPLOY THIS SOFTWARE.", Environment.NewLine };
string text6 = string.Concat(textArray1);
if (num1 < 4)
{
text6 = text6 + Environment.NewLine + "Please purchase a license at www.nwoods.com" + Environment.NewLine;
}
if (SystemInformation.UserInteractive)
{
if (!DiagramViewLicenseProvider.err)
{
DiagramViewLicenseProvider.err = true;
MessageBox.Show(text6, type.Name + " License Check", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
}
else
{
Console.WriteLine(type.Name + " License Check");
Console.WriteLine(text6);
}
return new DiagramViewLicense(text6, num1);
}
}
textArray1 = new string[0x1c] {
"Built using ", DiagramViewLicenseProvider.GONAME, " for .NET Windows Forms ", this.StringFloat(DiagramView.Version), Environment.NewLine, "Copyright \x00a9 Northwoods Software, 1998-2004. All Rights Reserved.", Environment.NewLine, "The license for this copy of ", DiagramViewLicenseProvider.GONAME, " is invalid or has expired.", Environment.NewLine, Environment.NewLine, "Please purchase a license at www.nwoods.com", Environment.NewLine, "If you have already purchased a ", DiagramViewLicenseProvider.GONAME,
" development license,", Environment.NewLine, " have you requested an Unlock Code for your development machine by running the GoDiagram LicenseManager?", Environment.NewLine, "If you have already entered an Unlock Code in the LicenseManager,", Environment.NewLine, " did you link license objects into your application via the Microsoft license compiler?", Environment.NewLine, " (Make sure the needed components and correct VERSION are listed in the LICENSES.LICX file,", Environment.NewLine, " and that the LICENSES.LICX file is part of your EXECUTABLE's project, not in a DLL.)", Environment.NewLine
};
string text9 = string.Concat(textArray1);
text9 = text9 + text1;
if (SystemInformation.UserInteractive)
{
MessageBox.Show(text9, type.Name + " License Check", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
}
else
{
Console.WriteLine(type.Name + " License Check");
Console.WriteLine(text9);
}
if (allowExceptions)
{
throw new LicenseException(type, instance, text9);
}
return null;
}
/// <include file='doc\LicFileLicenseProvider.uex' path='docs/doc[@for="LicFileLicenseProvider.GetLicense"]/*' />
/// <devdoc>
/// <para>Gets a license for the instance of the component and determines if it is valid.</para>
/// </devdoc>
public override License GetLicense(LicenseContext context, Type type, object instance, bool allowExceptions)
{
ProcCountLicense lic = null;
Debug.Assert(context != null, "No context provided!");
//if no context is provided, do nothing
if (context != null)
{
//if this control is in runtime mode
if (context.UsageMode == LicenseUsageMode.Runtime)
{
//retreive the stored license key
string key = context.GetSavedLicenseKey(type, null);
//check if the stored license key is null
// and call IsKeyValid to make sure its valid
if (key != null && IsKeyValid(key, type))
{
//if the key is valid create a new license
lic = new ProcCountLicense(this, key);
}
}
//if we're in design mode or
//a suitable license key wasn't found in
//the runtime context.
//attempt to look for a .LIC file
if (lic == null)
{
//build up the path where the .LIC file
//should be
string modulePath = null;
// try and locate the file for the assembly
if (context != null)
{
ITypeResolutionService resolver = (ITypeResolutionService)context.GetService(typeof(ITypeResolutionService));
if (resolver != null)
modulePath = resolver.GetPathOfAssembly(type.Assembly.GetName());
}
if (modulePath == null)
modulePath = type.Module.FullyQualifiedName;
//get the path from the file location
string moduleDir = Path.GetDirectoryName(modulePath);
//build the path of the .LIC file
string licenseFile = moduleDir + "\\" + type.FullName + ".lic";
Debug.WriteLine("Path of license file: " + licenseFile);
//if the .LIC file exists, dig into it
if (File.Exists(licenseFile))
{
//crack the file and get the first line
Stream licStream = new FileStream(licenseFile, FileMode.Open, FileAccess.Read, FileShare.Read);
StreamReader sr = new StreamReader(licStream);
string s = sr.ReadLine();
sr.Close();
Debug.WriteLine("Contents of license file: " + s);
//check if the key is valid
if (IsKeyValid(s, type))
{
//valid key so create a new License
lic = new ProcCountLicense(this, s);
}
}
//if we managed to create a license, stuff it into the context
if (lic != null)
{
context.SetSavedLicenseKey(type, lic.LicenseKey);
}
}
}
return lic;
}
/// <summary>
/// Extract the license for the given type from the given licenseKey
/// </summary>
/// <param name="context">The current licensing context</param>
/// <param name="type">The type to be licensed</param>
/// <param name="licenseKey">The encrypted hexadecimal license key</param>
/// <returns>A license for the given type or NULL if the licenseKey was invalid</returns>
protected virtual EncryptedLicense LoadLicense(LicenseContext context, Type type, string licenseKey)
{
// check that validation parameters have been set by the client
//
if (_designSignature == null || _runtimeSignature == null)
throw new InvalidOperationException("EncryptedLicenseProvider.SetParameters must be called prior to using the EncryptedLicenseProvider");
if (licenseKey == null) return null;
try
{
byte[] encData = FromHex(licenseKey);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
des.Key = _desKey;
des.IV = _desIV;
byte[] data = des.CreateDecryptor().TransformFinalBlock(encData, 0, encData.Length);
// extract the password data and encrypted product data
//
byte[] passwordData = new byte[ArraySize(_keyStrength)];
byte[] encPayload = new byte[ArraySize(data.Length - _keyStrength)];
// for key strengths greater than 8 the order of payload and key is swapped
//
if (_keyStrength < 8)
{
Array.Copy(data, 0, passwordData, 0, _keyStrength);
Array.Copy(data, _keyStrength, encPayload, 0, encPayload.Length);
}
else
{
Array.Copy(data, 0, encPayload, 0, encPayload.Length);
Array.Copy(data, encPayload.Length, passwordData, 0, _keyStrength);
}
// the key used to encrypt payload is just the first 7 bytes of the password data
//
byte[] encryptionKey = new byte[ArraySize(8)];
Array.Copy(passwordData, 0, encryptionKey, 0, 7);
// validate that the password matches what the client is expecting
//
CspParameters cspParams = new CspParameters();
// if we are running in a server or ASP then ensure that we use the machine CSP
// store to avoid problems.
//
if (!Environment.UserInteractive || UseMachineKeyStore)
{
cspParams.Flags = CspProviderFlags.UseMachineKeyStore;
}
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(cspParams);
rsa.ImportParameters(_rsaParameters);
byte[] paddedPasswordData = PadPassword(passwordData);
if (context.UsageMode == LicenseUsageMode.Designtime)
{
// if design time license requested then the license MUST be a design license
//
if (!rsa.VerifyData(paddedPasswordData, new SHA1CryptoServiceProvider(), _designSignature)) return null;
}
else
{
// if runtime license requested then first check if the license is a runtime license
// also allow design licenses to work at runtime
//
if (!rsa.VerifyData(paddedPasswordData, new SHA1CryptoServiceProvider(), _runtimeSignature))
{
if (!rsa.VerifyData(paddedPasswordData, new SHA1CryptoServiceProvider(), _designSignature)) return null;
}
}
// decrypt the payload using the encryption key
//
des.IV = encryptionKey;
byte[] payload = des.CreateDecryptor().TransformFinalBlock(encPayload, 0, encPayload.Length);
int checksumLength = (_checksumProductInfo) ? 2 : 0;
byte[] productData = new byte[ArraySize(payload.Length - 2 - checksumLength)];
Array.Copy(payload, 2, productData, 0, productData.Length);
UInt16 serialNo = BitConverter.ToUInt16(payload, 0);
string product = System.Text.ASCIIEncoding.UTF8.GetString(productData);
// validate the product data checksum
//
if (_checksumProductInfo)
{
UInt16 requiredChecksum = BitConverter.ToUInt16(payload, payload.Length - checksumLength);
UInt16 actualChecksum = Checksum(productData);
if (requiredChecksum != actualChecksum)
return null;
}
// if in design time then create a runtime license and save it
//
if (context.UsageMode == LicenseUsageMode.Designtime && type != null)
{
// create the runtime password by encrypting the design password
//
byte[] encPassword = des.CreateEncryptor().TransformFinalBlock(paddedPasswordData, 0, paddedPasswordData.Length);
byte[] runtimePasswordData = new byte[ArraySize(_keyStrength)];
Array.Copy(encPassword, 0, runtimePasswordData, 0, _keyStrength);
string runtimeLicenseKey = GenerateKey(_keyStrength, runtimePasswordData, productData,_checksumProductInfo, serialNo);
// save the runtime key into the context
//
context.SetSavedLicenseKey(type, runtimeLicenseKey);
}
return new EncryptedLicense(licenseKey, serialNo, product);
}
catch
{
return null;
}
}
public override License GetLicense(LicenseContext context,Type type,object instance,bool allowExceptions)
{
DevCoLicense lic = null;
Debug.Assert(context!=null, "No context provided!");
#if !TRIAL
//if no context is provided, do nothing
if (context != null)
{
//if this control is in runtime mode
if (context.UsageMode == LicenseUsageMode.Runtime)
{
//retreive the stored license key
string key = context.GetSavedLicenseKey(type, null);
//check if the stored license key is null
// and call IsKeyValid to make sure its valid
if (key != null && IsKeyValid2(key, type))
{
//if the key is valid create a new license
lic = new DevCoLicense(key);
}
else
{
try
{
System.Reflection.Assembly[] assemblies=System.AppDomain.CurrentDomain.GetAssemblies();
foreach(System.Reflection.Assembly a in assemblies)
{
string codeBase = a.CodeBase;
codeBase = codeBase.Substring(codeBase.LastIndexOf("/") + 1)+".licenses";
System.IO.Stream stream=this.GetManifestResourceStream(a,codeBase);
if(stream==null)
codeBase=codeBase.Replace(".DLL.",".dll.");
stream=this.GetManifestResourceStream(a,codeBase);
if(stream!=null)
{
key=DeserializeLicenseKey(stream);
if (key != null && key!="") //IsKeyValid2(key, type))
{
lic = new DevCoLicense(key);
break;
}
}
}
}
catch
{
lic=new DevCoLicense("");
}
}
}
else
{
string sKey="";
Microsoft.Win32.RegistryKey regkey=Microsoft.Win32.Registry.LocalMachine;
regkey=regkey.OpenSubKey("Software\\DevComponents\\Licenses",false);
if(regkey!=null)
{
sKey=regkey.GetValue("DevComponents.DotNetBar.DotNetBarManager2").ToString();
}
//check if the key is valid
if (IsKeyValid(sKey, type))
{
//valid key so create a new License
lic = new DevCoLicense(Key(type));
}
//if we managed to create a license, stuff it into the context
if (lic != null)
{
context.SetSavedLicenseKey(type, lic.LicenseKey);
}
}
}
#else
if (context != null)
{
lic=new DevCoLicense("");
//if this control is in runtime mode
if (context.UsageMode == LicenseUsageMode.Runtime)
{
RemindForm frm=new RemindForm();
frm.ShowDialog();
}
else
{
context.SetSavedLicenseKey(type, lic.LicenseKey);
}
}
#endif
if(lic==null && context!=null)
{
RemindForm frm=new RemindForm();
frm.ShowDialog();
lic=new DevCoLicense("");
}
return lic;
}
