/// <summary>
/// <para>If DPAPI settings change, this saves the key algorithm out with the new settings.</para>
/// </summary>
/// <param name="dialogResult">
/// <para>One of the <see cref="DialogResult"/> values.</para>
/// </param>
/// <param name="originalSettings">
/// <para>The original <see cref="DpapiSettings"/> before editing.</para>
/// </param>
/// <param name="newSettingsData">
/// <para>The new <see cref="DpapiSettingsData"/> from the editor.</para>
/// </param>
/// <returns>
/// <para>If accepted, the new <see cref="DpapiSettings"/>; otherwise the <paramref name="originalSettings"/>.</para>
/// </returns>
protected override object HandleResult(DialogResult dialogResult, DpapiSettings originalSettings, DpapiSettingsData newSettingsData)
{
bool returnBaseResult = true;
if (dialogResult == DialogResult.OK)
{
DpapiSettings newDpapiSettings = null;
if (newSettingsData != null)
{
newDpapiSettings = new DpapiSettings(newSettingsData);
}
if (newDpapiSettings != originalSettings)
{
returnBaseResult = SaveKeyAlgorithmPairWithNewDapiSettings(newDpapiSettings, originalSettings);
}
}
if (returnBaseResult)
{
return(base.HandleResult(dialogResult, originalSettings, newSettingsData));
}
else
{
return(originalSettings);
}
}
/// <summary>
/// <para>Edits the specified object's value using the editor style indicated by <see cref="GetEditStyle"/>. This should be a <see cref="DpapiSettings"/> object.</para>
/// </summary>
/// <param name="context"><para>An <see cref="ITypeDescriptorContext"/> that can be used to gain additional context information.</para></param>
/// <param name="provider"><para>An <see cref="IServiceProvider"/> that this editor can use to obtain services.</para></param>
/// <param name="value"><para>The object to edit. This should be a <see cref="DpapiSettings"/> object.</para></param>
/// <returns><para>The new value of the <see cref="DpapiSettings"/> object.</para></returns>
/// <seealso cref="UITypeEditor.EditValue(ITypeDescriptorContext, IServiceProvider, object)"/>
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));
using (DpapiSettingsEditorUI dialog = new DpapiSettingsEditorUI(required))
{
if (ConfirmMessage.Length > 0)
{
dialog.ConfirmMessage = this.ConfirmMessage;
}
DpapiSettings dpapiSettings = value as DpapiSettings;
InitializeDialog(dialog, dpapiSettings);
DpapiSettingsData newSettingsData = dialog.DpapiSettingsData;
return(HandleResult(service.ShowDialog(dialog), dpapiSettings, newSettingsData));
}
}
}
return(value);
}
/// <summary>
/// <para>If DPAPI settings change, this saves the key algorithm out with the new settings.</para>
/// </summary>
/// <param name="dialogResult">
/// <para>One of the <see cref="DialogResult"/> values.</para>
/// </param>
/// <param name="originalSettings">
/// <para>The original <see cref="DpapiSettings"/> before editing.</para>
/// </param>
/// <param name="newSettingsData">
/// <para>The new <see cref="DpapiSettingsData"/> from the editor.</para>
/// </param>
/// <returns>
/// <para>If accepted, the new <see cref="DpapiSettings"/>; otherwise the <paramref name="originalSettings"/>.</para>
/// </returns>
protected override object HandleResult(DialogResult dialogResult, DpapiSettings originalSettings, DpapiSettingsData newSettingsData)
{
bool returnBaseResult = true;
if (dialogResult == DialogResult.OK)
{
DpapiSettings newDpapiSettings = null;
if (newSettingsData != null)
{
newDpapiSettings = new DpapiSettings(newSettingsData);
}
if (newDpapiSettings != originalSettings)
{
returnBaseResult = SaveKeyAlgorithmPairWithNewDapiSettings(newDpapiSettings, originalSettings);
}
}
if (returnBaseResult)
{
return base.HandleResult(dialogResult, originalSettings, newSettingsData);
}
else
{
return originalSettings;
}
}
private void InitializeDialog(DpapiSettingsEditorUI dialog, DpapiSettings settings)
{
if (settings != null)
{
dialog.DpapiSettingsData = new DpapiSettingsData();
dialog.DpapiSettingsData.Mode = settings.Mode;
dialog.DpapiSettingsData.Entropy = settings.Entropy;
}
dialog.DisplaySettings();
}
private DpapiSettingsData GetDpapiSettingsData(DpapiSettings settings)
{
if (settings == null)
{
return(null);
}
else
{
return(new DpapiSettingsData(settings.Entropy, settings.Mode));
}
}
protected override void ExecuteCore(ConfigurationNode node)
{
DpapiSettingsEditorUI dpapi = new DpapiSettingsEditorUI();
DialogResult result = dpapi.ShowDialog();
if (result == DialogResult.OK)
{
base.ExecuteCore(node);
DpapiSymmetricCryptoProviderNode cryptoNode = (DpapiSymmetricCryptoProviderNode)ChildNode;
DpapiSettings settings = new DpapiSettings(dpapi.DpapiSettingsData);
cryptoNode.DataProtectionMode = settings;
}
}
protected virtual object HandleResult(DialogResult dialogResult, DpapiSettings originalSettings, DpapiSettingsData newSettingsData)
{
if (dialogResult == DialogResult.OK)
{
if (newSettingsData == null)
{
return(null);
}
return(new DpapiSettings(newSettingsData));
}
else
{
return(originalSettings);
}
}
private bool SaveKeyAlgorithmPairWithNewDapiSettings(DpapiSettings newDpapiSettings, DpapiSettings originalDpapiSettings)
{
ConfigurationContext context = GetContext();
ConfigurationSettings settings = context.GetMetaConfiguration();
FileKeyAlgorithmPairStorageProvider loadProvider = new FileKeyAlgorithmPairStorageProvider();
FileKeyAlgorithmPairStorageProviderData loadData = new FileKeyAlgorithmPairStorageProviderData(
SR.DefaultFileKeyAlgorithmStorageProviderNodeName, currentNode.File, GetDpapiSettingsData(originalDpapiSettings));
settings.KeyAlgorithmPairStorageProviderData = loadData;
loadProvider.ConfigurationName = loadData.Name;
loadProvider.Initialize(new RuntimeConfigurationView(context));
FileKeyAlgorithmPairStorageProvider saveProvider = new FileKeyAlgorithmPairStorageProvider();
FileKeyAlgorithmPairStorageProviderData saveData = new FileKeyAlgorithmPairStorageProviderData(
SR.DefaultFileKeyAlgorithmStorageProviderNodeName, currentNode.File, GetDpapiSettingsData(newDpapiSettings));
settings.KeyAlgorithmPairStorageProviderData = saveData;
saveProvider.ConfigurationName = saveData.Name;
saveProvider.Initialize(new RuntimeConfigurationView(context));
try
{
KeyAlgorithmPair key = loadProvider.Load();
saveProvider.Save(key);
}
catch (Exception ex)
{
MessageBox.Show(
SR.FileKeyAlgorithmDpapiSettingsEditorUnableToSaveNewDpapiSettingsErrorMessage(ex.Message),
SR.FileKeyAlgorithmDpapiSettingsEditorUnableToSaveNewDpapiSettingsCaption,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return(false);
}
return(true);
}
/// <summary>
/// Determines whether or not two DpapiSettings objects have equal properties.
/// </summary>
/// <param name="obj">The object to compare.</param>
/// <returns><c>true</c> if equal, otherwise <c>false</c>.</returns>
public override bool Equals(object obj)
{
if (obj == this)
{
return(true);
}
DpapiSettings compareObj = obj as DpapiSettings;
if (compareObj == null)
{
return(false);
}
if (compareObj.Mode != this.Mode)
{
return(false);
}
if (!CryptographyUtility.CompareBytes(compareObj.Entropy, this.Entropy))
{
return(false);
}
return(true);
}
private void InitializeDialog(DpapiSettingsEditorUI dialog, DpapiSettings settings)
{
if (settings != null)
{
dialog.DpapiSettingsData = new DpapiSettingsData();
dialog.DpapiSettingsData.Mode = settings.Mode;
dialog.DpapiSettingsData.Entropy = settings.Entropy;
}
dialog.DisplaySettings();
}
protected virtual object HandleResult(DialogResult dialogResult, DpapiSettings originalSettings, DpapiSettingsData newSettingsData)
{
if (dialogResult == DialogResult.OK)
{
if (newSettingsData == null)
{
return null;
}
return new DpapiSettings(newSettingsData);
}
else
{
return originalSettings;
}
}
private bool SaveKeyAlgorithmPairWithNewDapiSettings(DpapiSettings newDpapiSettings, DpapiSettings originalDpapiSettings)
{
ConfigurationContext context = GetContext();
ConfigurationSettings settings = context.GetMetaConfiguration();
FileKeyAlgorithmPairStorageProvider loadProvider = new FileKeyAlgorithmPairStorageProvider();
FileKeyAlgorithmPairStorageProviderData loadData = new FileKeyAlgorithmPairStorageProviderData(
SR.DefaultFileKeyAlgorithmStorageProviderNodeName, currentNode.File, GetDpapiSettingsData(originalDpapiSettings));
settings.KeyAlgorithmPairStorageProviderData = loadData;
loadProvider.ConfigurationName = loadData.Name;
loadProvider.Initialize(new RuntimeConfigurationView(context));
FileKeyAlgorithmPairStorageProvider saveProvider = new FileKeyAlgorithmPairStorageProvider();
FileKeyAlgorithmPairStorageProviderData saveData = new FileKeyAlgorithmPairStorageProviderData(
SR.DefaultFileKeyAlgorithmStorageProviderNodeName, currentNode.File, GetDpapiSettingsData(newDpapiSettings));
settings.KeyAlgorithmPairStorageProviderData = saveData;
saveProvider.ConfigurationName = saveData.Name;
saveProvider.Initialize(new RuntimeConfigurationView(context));
try
{
KeyAlgorithmPair key = loadProvider.Load();
saveProvider.Save(key);
}
catch (Exception ex)
{
MessageBox.Show(
SR.FileKeyAlgorithmDpapiSettingsEditorUnableToSaveNewDpapiSettingsErrorMessage(ex.Message),
SR.FileKeyAlgorithmDpapiSettingsEditorUnableToSaveNewDpapiSettingsCaption,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return false;
}
return true;
}
private DpapiSettingsData GetDpapiSettingsData(DpapiSettings settings)
{
if (settings == null)
{
return null;
}
else
{
return new DpapiSettingsData(settings.Entropy, settings.Mode);
}
}
private void OKButton_Click(object sender, EventArgs e)
{
using (new WaitCursor())
{
if (dpapiCheckBox.Checked)
{
if (dpapiSettingsControl.DpapiStorageMode == DpapiStorageMode.Machine && dpapiSettingsControl.Entropy.Length != EntropySize)
{
MessageBox.Show(SR.DpapiEntropyConvertErrorMessage, SR.DpapiEntropyMinSizeCaption,
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
this.dpapiSettings = new DpapiSettings(null);
this.dpapiSettings.Entropy = dpapiSettingsControl.Entropy;
this.dpapiSettings.Mode = dpapiSettingsControl.DpapiStorageMode;
}
else
{
this.dpapiSettings = null;
}
if (openMode)
{
// Make sure we can load the key
try
{
LoadKeyAlgorithmPair();
}
catch (Exception ex)
{
MessageBox.Show(
SR.FileKeyAlgorithmWizardUnableToLoadKeyErrorMessage(ex.Message),
SR.FileKeyAlgorithmWizardUnableToLoadKeyCaption,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
}
else
{
try
{
SaveKeyAlgorithmPair();
}
catch (Exception ex)
{
MessageBox.Show(
ex.Message,
ex.Message,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
}
this.DialogResult = DialogResult.OK;
this.Close();
}
}
private void OKButton_Click(object sender, EventArgs e)
{
using (new WaitCursor())
{
if (dpapiCheckBox.Checked)
{
if (dpapiSettingsControl.DpapiStorageMode == DpapiStorageMode.Machine && dpapiSettingsControl.Entropy.Length != EntropySize)
{
MessageBox.Show(SR.DpapiEntropyConvertErrorMessage, SR.DpapiEntropyMinSizeCaption,
MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
this.dpapiSettings = new DpapiSettings(null);
this.dpapiSettings.Entropy = dpapiSettingsControl.Entropy;
this.dpapiSettings.Mode = dpapiSettingsControl.DpapiStorageMode;
}
else
{
this.dpapiSettings = null;
}
if (openMode)
{
// Make sure we can load the key
try
{
LoadKeyAlgorithmPair();
}
catch (Exception ex)
{
MessageBox.Show(
SR.FileKeyAlgorithmWizardUnableToLoadKeyErrorMessage(ex.Message),
SR.FileKeyAlgorithmWizardUnableToLoadKeyCaption,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
}
else
{
try
{
SaveKeyAlgorithmPair();
}
catch (Exception ex)
{
MessageBox.Show(
ex.Message,
ex.Message,
MessageBoxButtons.OK,
MessageBoxIcon.Error
);
return;
}
}
this.DialogResult = DialogResult.OK;
this.Close();
}
}
