/// <summary>
/// <para>Creates an instance of the child node class and adds it as a child of the parent node. The node will be a <see cref="SymmetricAlgorithmProviderNode"/>.</para>
/// </summary>
/// <param name="node">
/// <para>The parent node to add the newly created <see cref="AddChildNodeCommand.ChildNode"/>.</para>
/// </param>
protected override void ExecuteCore(ConfigurationNode node)
{
TypeSelectorUI selector = new TypeSelectorUI(
typeof(RijndaelManaged),
typeof(SymmetricAlgorithm),
TypeSelectorIncludes.None
);
DialogResult typeResult = selector.ShowDialog();
if (typeResult == DialogResult.OK)
{
Type algorithmType = selector.SelectedType;
CryptographicKeyWizard keyManager = new CryptographicKeyWizard(new SymmetricAlgorithmKeyCreator(algorithmType));
DialogResult keyResult = keyManager.ShowDialog();
if (keyResult == DialogResult.OK)
{
INodeNameCreationService service = ServiceHelper.GetNameCreationService(ServiceProvider);
Debug.Assert(service != null, "Could not find the INodeNameCreationService");
base.ExecuteCore(node);
SymmetricAlgorithmProviderNode providerNode = (SymmetricAlgorithmProviderNode)ChildNode;
providerNode.AlgorithmType = selector.SelectedType;
providerNode.Name = service.GetUniqueName(selector.SelectedType.Name, providerNode, providerNode.Parent);
providerNode.Key = keyManager.KeySettings;
}
}
}
/// <summary>
/// Edits the specified object using the editor style provided by the GetEditStyle method.
/// </summary>
/// <param name="context">
/// An ITypeDescriptorContext that can be used to gain additional context information.
/// </param>
/// <param name="provider">
/// A service provider object through which editing services may be obtained.
/// </param>
/// <param name="value">
/// An instance of the value being edited.
/// </param>
/// <returns>
/// The new value of the object. If the value of the object hasn't changed, this should return the same object it was passed.
/// </returns>
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
Debug.Assert(provider != null, "No service provider; we cannot edit the value");
if (provider != null)
{
IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
Debug.Assert(edSvc != null, "No editor service; we cannot edit the value");
if (edSvc != null)
{
IWindowsFormsEditorService service = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
ProtectedKeySettings keySettings = value as ProtectedKeySettings;
if (keySettings == null)
{
throw new ArgumentException(Resources.KeyManagerEditorRequiresKeyInfoProperty);
}
ICryptographicKeyConfigurationNode cryptographicKeyContainer = context.Instance as ICryptographicKeyConfigurationNode;
try
{
ImportProtectedKey(cryptographicKeyContainer);
}
catch (IOException ioe)
{
MessageBox.Show(String.Format(Resources.OpenExistingKeyFileFailureErrorMessage, keySettings.Filename, ioe.Message), Resources.OpenExistingKeyFileFailureTitle, MessageBoxButtons.OK, MessageBoxIcon.Error);
return(value);
}
CryptographicKeyWizard dialog = new CryptographicKeyWizard(CryptographicKeyWizardStep.CreateNewKey, cryptographicKeyContainer.KeyCreator);
dialog.KeySettings = keySettings;
DialogResult dialogResult = service.ShowDialog(dialog);
if (dialogResult == DialogResult.Cancel)
{
return(keySettings);
}
else
{
return(dialog.KeySettings);
}
}
}
return(value);
}
/// <summary>
/// <para>Creates an instance of the child node class and adds it as a child of the parent node. The node will be a <see cref="HashAlgorithmProviderNode"/>.</para>
/// </summary>
/// <param name="node">
/// <para>The parent node to add the newly created <see cref="AddChildNodeCommand.ChildNode"/>.</para>
/// </param>
protected override void ExecuteCore(ConfigurationNode node)
{
INodeNameCreationService service = ServiceHelper.GetNameCreationService(ServiceProvider);
Debug.Assert(service != null, "Could not find the INodeNameCreationService");
TypeSelectorUI selector = new TypeSelectorUI(
typeof(SHA1Managed),
typeof(HashAlgorithm),
TypeSelectorIncludes.None
);
DialogResult typeResult = selector.ShowDialog();
if (typeResult == DialogResult.OK)
{
Type selectedAlgorithmType = selector.SelectedType;
if (selector.SelectedType.IsSubclassOf(typeof(KeyedHashAlgorithm)))
{
CryptographicKeyWizard keyWizard = new CryptographicKeyWizard(new KeyedHashAlgorithmKeyCreator(selector.SelectedType));
DialogResult keyResult = keyWizard.ShowDialog();
if (keyResult == DialogResult.OK)
{
KeyedHashAlgorithmProviderNode providerNode = new KeyedHashAlgorithmProviderNode();
providerNode.Key = keyWizard.KeySettings;
providerNode.AlgorithmType = selector.SelectedType;
node.AddNode(providerNode);
providerNode.Name = service.GetUniqueName(selector.SelectedType.Name, providerNode, providerNode.Parent);
}
}
else
{
base.ExecuteCore(node);
HashAlgorithmProviderNode providerNode = (HashAlgorithmProviderNode)ChildNode;
providerNode.AlgorithmType = selectedAlgorithmType;
providerNode.Name = service.GetUniqueName(selector.SelectedType.Name, providerNode, providerNode.Parent);
}
}
}
