public MessageDlg(
string text,
MessageDlgButton left = MessageDlgButton.Ok,
MessageDlgButton right = MessageDlgButton.None)
{
InitializeComponent();
Text = text;
Left = left;
Right = right;
dialogPopup.Child = this;
dialogPopup.Closed += ClosedEvent;
}
public void MessageText(
string text,
MessageDlgButton left = MessageDlgButton.Ok,
MessageDlgButton right = MessageDlgButton.None)
{
Text = text;
Left = left;
Right = right;
}
private void RightButton_Click(object sender, RoutedEventArgs e)
{
Result = Right;
dialogPopup.IsOpen = false;
}
private void SetButtonText(Button button, MessageDlgButton item)
{
button.Content = item.ToString();
button.Visibility = (item == MessageDlgButton.None) ? Visibility.Collapsed : Visibility.Visible;
}
private void SetButtonText(Button button, MessageDlgButton item)
{
button.Content = item.ToString();
button.Visibility = (item == MessageDlgButton.None) ? Visibility.Collapsed : Visibility.Visible;
}
private void RightButton_Click(object sender, RoutedEventArgs e)
{
Result = Right;
dialogPopup.IsOpen = false;
}
/// <summary>
/// Creates an application instance certificate if one does not already exist.
/// </summary>
public static async Task <X509Certificate2> CheckApplicationInstanceCertificate(
ApplicationConfiguration configuration,
ushort keySize,
bool interactive,
bool updateFile)
{
// create a default certificate if none is specified.
CertificateIdentifier id = configuration.SecurityConfiguration.ApplicationCertificate;
if (id == null)
{
id = new CertificateIdentifier();
id.StoreType = Utils.DefaultStoreType;
id.StorePath = ApplicationData.Current.LocalFolder.Path + "\\OPC Foundation\\CertificateStores\\MachineDefault";
id.SubjectName = configuration.ApplicationName;
}
bool createNewCertificate = false;
IList <string> serverDomainNames = configuration.GetServerDomainNames();
// check for private key.
X509Certificate2 certificate = await id.Find(true);
if (certificate == null)
{
// check if config file has wrong thumprint.
if (!String.IsNullOrEmpty(id.SubjectName) && !String.IsNullOrEmpty(id.Thumbprint))
{
CertificateIdentifier id2 = new CertificateIdentifier();
id2.StoreType = id.StoreType;
id2.StorePath = id.StorePath;
id2.SubjectName = id.SubjectName;
id = id2;
certificate = await id2.Find(true);
if (certificate != null)
{
string message = Utils.Format(
"Matching certificate with SubjectName={0} found but with a different thumbprint. Use certificate?",
id.SubjectName);
if (interactive)
{
MessageDlg dialog = new MessageDlg(message, MessageDlgButton.Yes, MessageDlgButton.No);
MessageDlgButton result = await dialog.ShowAsync();
if (result != MessageDlgButton.Yes)
{
certificate = null;
}
}
}
}
// check if private key is missing.
if (certificate == null)
{
certificate = await id.Find(false);
if (certificate != null)
{
string message = Utils.Format(
"Matching certificate with SubjectName={0} found but without a private key. Create a new certificate?",
id.SubjectName);
if (interactive)
{
MessageDlg dialog = new MessageDlg(message, MessageDlgButton.Yes, MessageDlgButton.No);
MessageDlgButton result = await dialog.ShowAsync();
if (result != MessageDlgButton.Yes)
{
certificate = null;
}
}
}
}
// check domains.
if (certificate != null)
{
IList <string> certificateDomainNames = Utils.GetDomainsFromCertficate(certificate);
for (int ii = 0; ii < serverDomainNames.Count; ii++)
{
if (Utils.FindStringIgnoreCase(certificateDomainNames, serverDomainNames[ii]))
{
continue;
}
if (String.Compare(serverDomainNames[ii], "localhost", StringComparison.OrdinalIgnoreCase) == 0)
{
// check computer name.
string computerName = Utils.GetHostName();
if (Utils.FindStringIgnoreCase(certificateDomainNames, computerName))
{
continue;
}
}
string message = Utils.Format(
"The server is configured to use domain '{0}' which does not appear in the certificate. Create new certificate?",
serverDomainNames[ii]);
createNewCertificate = true;
if (interactive)
{
MessageDlg dialog = new MessageDlg(message, MessageDlgButton.Yes, MessageDlgButton.No);
MessageDlgButton result = await dialog.ShowAsync();
if (result != MessageDlgButton.Yes)
{
createNewCertificate = false;
continue;
}
}
Utils.Trace(message);
break;
}
if (!createNewCertificate)
{
// check if key size matches.
if (keySize == certificate.GetRSAPublicKey().KeySize)
{
await AddToTrustedStore(configuration, certificate);
return(certificate);
}
}
}
// prompt user.
if (interactive)
{
if (!createNewCertificate)
{
MessageDlg dialog = new MessageDlg("Application does not have an instance certificate.\n Create one automatically?", MessageDlgButton.Yes, MessageDlgButton.No);
MessageDlgButton result = await dialog.ShowAsync();
if (result != MessageDlgButton.Yes)
{
return(null);
}
}
}
// delete existing certificate.
if (certificate != null)
{
await DeleteApplicationInstanceCertificate(configuration);
}
// add the localhost.
if (serverDomainNames.Count == 0)
{
serverDomainNames.Add(Utils.GetHostName());
}
certificate = await Opc.Ua.CertificateFactory.CreateCertificate(
id.StoreType,
id.StorePath,
configuration.ApplicationUri,
configuration.ApplicationName,
null,
serverDomainNames,
keySize,
300);
id.Certificate = certificate;
await AddToTrustedStore(configuration, certificate);
if (updateFile && !String.IsNullOrEmpty(configuration.SourceFilePath))
{
configuration.SaveToFile(configuration.SourceFilePath);
}
await configuration.CertificateValidator.Update(configuration.SecurityConfiguration);
return(await configuration.SecurityConfiguration.ApplicationCertificate.LoadPrivateKey(null));
}
return(certificate);
}
