UA-.NETStandard/SampleApplications/Samples/Server/ServerPage.xaml.cs

/* Copyright (c) 1996-2016, OPC Foundation. All rights reserved.
   The source code in this file is covered under a dual-license scenario:
     - RCL: for OPC Foundation members in good-standing
     - GPL V2: everybody else
   RCL license terms accompanied with this source code. See http://opcfoundation.org/License/RCL/1.00/
   GNU General Public License as published by the Free Software Foundation;
   version 2 of the License are accompanied with this source code. See http://opcfoundation.org/License/GPLv2
   This source code is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/

using System;
using Windows.UI.Xaml.Controls;
using System.Threading;
using Windows.UI.Core;

using Opc.Ua.Server;
using Opc.Ua.Configuration;
using Opc.Ua.Client.Controls;

namespace Opc.Ua.SampleServer
{
    /// <summary>
    /// The primary form displayed by the application.
    /// </summary>
    public partial class ServerPage : Page
    {
        #region Constructors
        /// <summary>
        /// Creates an empty page.
        /// </summary>
        public ServerPage()
        {
            InitializeComponent();
        }
        
        /// <summary>
        /// Creates a form which displays the status for a UA server.
        /// </summary>
        public ServerPage(ApplicationInstance application)
        {
            InitializeComponent();

            m_application = application;

            if (application.Server is StandardServer)
            {
                ServerDiagnosticsCTRL.Initialize((StandardServer)application.Server, application.ApplicationConfiguration);
            }

            if (!application.ApplicationConfiguration.SecurityConfiguration.AutoAcceptUntrustedCertificates)
            {
                application.ApplicationConfiguration.CertificateValidator.CertificateValidation += new CertificateValidationEventHandler(CertificateValidator_CertificateValidation);
            }

        }
        #endregion

        #region Private Fields
        private ApplicationInstance m_application;
        #endregion

        #region Event Handlers
        /// <summary>
        /// Handles a certificate validation error.
        /// </summary>
        void CertificateValidator_CertificateValidation(CertificateValidator validator, CertificateValidationEventArgs e)
        {
            ManualResetEvent ev = new ManualResetEvent(false);
            Dispatcher.RunAsync(
                CoreDispatcherPriority.Normal,
                async () =>
                {
                    await GuiUtils.HandleCertificateValidationError(this, validator, e);
                    ev.Set();
                }
                ).AsTask().Wait();
            ev.WaitOne();
        }

        private void ServerPage_FormClosed(object sender)
        {
            try
            {
                m_application.Stop();
            }
            catch (Exception exception)
            {
                Utils.Trace(exception, "Error stopping server.");
            }
        }
#endregion

    }
}