Samuele Locatelli
756 lines
25 KiB
C#
756 lines
25 KiB
C#
/* ========================================================================
|
|
* Copyright (c) 2005-2020 The OPC Foundation, Inc. All rights reserved.
|
|
*
|
|
* OPC Foundation MIT License 1.00
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use,
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following
|
|
* conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* The complete license agreement can be found here:
|
|
* http://opcfoundation.org/License/MIT/1.00/
|
|
* ======================================================================*/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Drawing;
|
|
using System.Threading.Tasks;
|
|
using System.Windows.Forms;
|
|
using Opc.Ua.Client.ComplexTypes;
|
|
|
|
namespace Opc.Ua.Client.Controls
|
|
{
|
|
/// <summary>
|
|
/// A tool bar used to connect to a server.
|
|
/// </summary>
|
|
public partial class ConnectServerCtrl : UserControl
|
|
{
|
|
#region Constructors
|
|
/// <summary>
|
|
/// Initializes the object.
|
|
/// </summary>
|
|
public ConnectServerCtrl()
|
|
{
|
|
InitializeComponent();
|
|
m_CertificateValidation = new CertificateValidationEventHandler(CertificateValidator_CertificateValidation);
|
|
m_endpoints = new Dictionary<Uri, EndpointDescription>();
|
|
}
|
|
#endregion
|
|
|
|
#region Private Fields
|
|
private ApplicationConfiguration m_configuration;
|
|
private Session m_session;
|
|
private SessionReconnectHandler m_reconnectHandler;
|
|
private CertificateValidationEventHandler m_CertificateValidation;
|
|
private EventHandler m_ReconnectComplete;
|
|
private EventHandler m_ReconnectStarting;
|
|
private EventHandler m_KeepAliveComplete;
|
|
private EventHandler m_ConnectComplete;
|
|
private StatusStrip m_StatusStrip;
|
|
private ToolStripItem m_ServerStatusLB;
|
|
private ToolStripItem m_StatusUpateTimeLB;
|
|
private Dictionary<Uri, EndpointDescription> m_endpoints;
|
|
#endregion
|
|
|
|
#region Public Members
|
|
/// <summary>
|
|
/// Default session values.
|
|
/// </summary>
|
|
public static readonly uint DefaultSessionTimeout = 60000;
|
|
public static readonly int DefaultDiscoverTimeout = 15000;
|
|
public static readonly int DefaultReconnectPeriod = 10;
|
|
|
|
/// <summary>
|
|
/// A strip used to display session status information.
|
|
/// </summary>
|
|
public StatusStrip StatusStrip
|
|
{
|
|
get => m_StatusStrip;
|
|
|
|
set
|
|
{
|
|
if (!Object.ReferenceEquals(m_StatusStrip, value))
|
|
{
|
|
m_StatusStrip = value;
|
|
|
|
if (value != null)
|
|
{
|
|
m_ServerStatusLB = new ToolStripStatusLabel();
|
|
m_StatusUpateTimeLB = new ToolStripStatusLabel();
|
|
m_StatusStrip.Items.Add(m_ServerStatusLB);
|
|
m_StatusStrip.Items.Add(m_StatusUpateTimeLB);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// A control that contains the last time a keep alive was returned from the server.
|
|
/// </summary>
|
|
public ToolStripItem ServerStatusControl { get => m_ServerStatusLB; set => m_ServerStatusLB = value; }
|
|
|
|
/// <summary>
|
|
/// A control that contains the last time a keep alive was returned from the server.
|
|
/// </summary>
|
|
public ToolStripItem StatusUpateTimeControl { get => m_StatusUpateTimeLB; set => m_StatusUpateTimeLB = value; }
|
|
|
|
/// <summary>
|
|
/// The name of the session to create.
|
|
/// </summary>
|
|
public string SessionName { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets or sets a flag indicating that the domain checks should be ignored when connecting.
|
|
/// </summary>
|
|
public bool DisableDomainCheck { get; set; }
|
|
|
|
/// <summary>
|
|
/// Gets the cached EndpointDescription for a Url.
|
|
/// </summary>
|
|
public EndpointDescription GetEndpointDescription(Uri url)
|
|
{
|
|
EndpointDescription endpointDescription;
|
|
if (m_endpoints.TryGetValue(url, out endpointDescription))
|
|
{
|
|
return endpointDescription;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The URL displayed in the control.
|
|
/// </summary>
|
|
public string ServerUrl
|
|
{
|
|
get
|
|
{
|
|
if (UrlCB.SelectedIndex >= 0)
|
|
{
|
|
return (string)UrlCB.SelectedItem;
|
|
}
|
|
|
|
return UrlCB.Text;
|
|
}
|
|
|
|
set
|
|
{
|
|
UrlCB.SelectedIndex = -1;
|
|
UrlCB.Text = value;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Whether to use security when connecting.
|
|
/// </summary>
|
|
public bool UseSecurity
|
|
{
|
|
get => UseSecurityCK.Checked;
|
|
set => UseSecurityCK.Checked = value;
|
|
}
|
|
|
|
/// <summary>
|
|
/// The locales to use when creating the session.
|
|
/// </summary>
|
|
public string[] PreferredLocales { get; set; }
|
|
|
|
/// <summary>
|
|
/// The user identity to use when creating the session.
|
|
/// </summary>
|
|
public IUserIdentity UserIdentity { get; set; }
|
|
|
|
/// <summary>
|
|
/// The client application configuration.
|
|
/// </summary>
|
|
public ApplicationConfiguration Configuration
|
|
{
|
|
get => m_configuration;
|
|
|
|
set
|
|
{
|
|
if (!Object.ReferenceEquals(m_configuration, value))
|
|
{
|
|
if (m_configuration != null)
|
|
{
|
|
m_configuration.CertificateValidator.CertificateValidation -= m_CertificateValidation;
|
|
}
|
|
|
|
m_configuration = value;
|
|
|
|
if (m_configuration != null)
|
|
{
|
|
m_configuration.CertificateValidator.CertificateValidation += m_CertificateValidation;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// The currently active session.
|
|
/// </summary>
|
|
public Session Session => m_session;
|
|
|
|
/// <summary>
|
|
/// The number of seconds between reconnect attempts (0 means reconnect is disabled).
|
|
/// </summary>
|
|
public int ReconnectPeriod { get; set; } = DefaultReconnectPeriod;
|
|
|
|
/// <summary>
|
|
/// The discover timeout.
|
|
/// </summary>
|
|
public int DiscoverTimeout { get; set; } = DefaultDiscoverTimeout;
|
|
|
|
/// <summary>
|
|
/// The session timeout.
|
|
/// </summary>
|
|
public uint SessionTimeout { get; set; } = DefaultSessionTimeout;
|
|
|
|
/// <summary>
|
|
/// Raised when a good keep alive from the server arrives.
|
|
/// </summary>
|
|
public event EventHandler KeepAliveComplete
|
|
{
|
|
add { m_KeepAliveComplete += value; }
|
|
remove { m_KeepAliveComplete -= value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Raised when a reconnect operation starts.
|
|
/// </summary>
|
|
public event EventHandler ReconnectStarting
|
|
{
|
|
add { m_ReconnectStarting += value; }
|
|
remove { m_ReconnectStarting -= value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Raised when a reconnect operation completes.
|
|
/// </summary>
|
|
public event EventHandler ReconnectComplete
|
|
{
|
|
add { m_ReconnectComplete += value; }
|
|
remove { m_ReconnectComplete -= value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Raised after successfully connecting to or disconnecing from a server.
|
|
/// </summary>
|
|
public event EventHandler ConnectComplete
|
|
{
|
|
add { m_ConnectComplete += value; }
|
|
remove { m_ConnectComplete -= value; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the URLs shown in the control.
|
|
/// </summary>
|
|
public void SetAvailableUrls(IList<string> urls)
|
|
{
|
|
UrlCB.Items.Clear();
|
|
|
|
if (urls != null)
|
|
{
|
|
foreach (string url in urls)
|
|
{
|
|
int index = url.LastIndexOf("/discovery", StringComparison.InvariantCultureIgnoreCase);
|
|
|
|
if (index != -1)
|
|
{
|
|
UrlCB.Items.Add(url.Substring(0, index));
|
|
continue;
|
|
}
|
|
|
|
UrlCB.Items.Add(url);
|
|
}
|
|
|
|
if (UrlCB.Items.Count > 0)
|
|
{
|
|
UrlCB.SelectedIndex = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new session.
|
|
/// </summary>
|
|
/// <returns>The new session object.</returns>
|
|
private async Task<Session> Connect(
|
|
ITransportWaitingConnection connection,
|
|
EndpointDescription endpointDescription,
|
|
bool useSecurity,
|
|
uint sessionTimeout = 0)
|
|
{
|
|
// disconnect from existing session.
|
|
InternalDisconnect();
|
|
|
|
// select the best endpoint.
|
|
if (endpointDescription == null)
|
|
{
|
|
endpointDescription = CoreClientUtils.SelectEndpoint(m_configuration, connection, useSecurity, DiscoverTimeout);
|
|
}
|
|
|
|
EndpointConfiguration endpointConfiguration = EndpointConfiguration.Create(m_configuration);
|
|
ConfiguredEndpoint endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration);
|
|
|
|
m_session = await Session.Create(
|
|
m_configuration,
|
|
connection,
|
|
endpoint,
|
|
false,
|
|
!DisableDomainCheck,
|
|
(String.IsNullOrEmpty(SessionName)) ? m_configuration.ApplicationName : SessionName,
|
|
sessionTimeout,
|
|
UserIdentity,
|
|
PreferredLocales);
|
|
|
|
// set up keep alive callback.
|
|
m_session.KeepAlive += new KeepAliveEventHandler(Session_KeepAlive);
|
|
|
|
// raise an event.
|
|
DoConnectComplete(null);
|
|
|
|
try
|
|
{
|
|
UpdateStatus(false, DateTime.Now, "Connected, loading complex type system.");
|
|
var typeSystemLoader = new ComplexTypeSystem(m_session);
|
|
await typeSystemLoader.Load();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
UpdateStatus(true, DateTime.Now, "Connected, failed to load complex type system.");
|
|
Utils.LogWarning(e, "Failed to load complex type system.");
|
|
}
|
|
|
|
// return the new session.
|
|
return m_session;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new session.
|
|
/// </summary>
|
|
/// <returns>The new session object.</returns>
|
|
public Task<Session> Connect()
|
|
{
|
|
// determine the URL that was selected.
|
|
string serverUrl = UrlCB.Text;
|
|
if (UrlCB.SelectedIndex >= 0)
|
|
{
|
|
serverUrl = (string)UrlCB.SelectedItem;
|
|
}
|
|
bool useSecurity = UseSecurityCK.Checked;
|
|
return Connect(serverUrl, useSecurity);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new session.
|
|
/// </summary>
|
|
/// <returns>The new session object.</returns>
|
|
private async Task<Session> Connect(
|
|
string serverUrl,
|
|
bool useSecurity,
|
|
uint sessionTimeout = 0)
|
|
{
|
|
// disconnect from existing session.
|
|
InternalDisconnect();
|
|
|
|
// select the best endpoint.
|
|
var endpointDescription = CoreClientUtils.SelectEndpoint(m_configuration, serverUrl, useSecurity, DiscoverTimeout);
|
|
var endpointConfiguration = EndpointConfiguration.Create(m_configuration);
|
|
var endpoint = new ConfiguredEndpoint(null, endpointDescription, endpointConfiguration);
|
|
|
|
m_session = await Session.Create(
|
|
m_configuration,
|
|
endpoint,
|
|
false,
|
|
!DisableDomainCheck,
|
|
(String.IsNullOrEmpty(SessionName)) ? m_configuration.ApplicationName : SessionName,
|
|
sessionTimeout == 0 ? DefaultSessionTimeout : sessionTimeout,
|
|
UserIdentity,
|
|
PreferredLocales);
|
|
|
|
// set up keep alive callback.
|
|
m_session.KeepAlive += new KeepAliveEventHandler(Session_KeepAlive);
|
|
|
|
// raise an event.
|
|
DoConnectComplete(null);
|
|
|
|
try
|
|
{
|
|
UpdateStatus(false, DateTime.Now, "Connected, loading complex type system.");
|
|
var typeSystemLoader = new ComplexTypeSystem(m_session);
|
|
await typeSystemLoader.Load();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
UpdateStatus(true, DateTime.Now, "Connected, failed to load complex type system.");
|
|
Utils.LogError(e, "Failed to load complex type system.");
|
|
}
|
|
|
|
// return the new session.
|
|
return m_session;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a new session.
|
|
/// </summary>
|
|
/// <param name="serverUrl">The URL of a server endpoint.</param>
|
|
/// <param name="useSecurity">Whether to use security.</param>
|
|
/// <returns>The new session object.</returns>
|
|
public async Task<Session> ConnectAsync(
|
|
string serverUrl = null,
|
|
bool useSecurity = false,
|
|
uint sessionTimeout = 0
|
|
)
|
|
{
|
|
if (serverUrl == null)
|
|
{
|
|
serverUrl = UrlCB.Text;
|
|
|
|
if (UrlCB.SelectedIndex >= 0)
|
|
{
|
|
serverUrl = (string)UrlCB.SelectedItem;
|
|
}
|
|
|
|
useSecurity = UseSecurityCK.Checked;
|
|
}
|
|
else
|
|
{
|
|
UrlCB.Text = serverUrl;
|
|
UseSecurityCK.Checked = useSecurity;
|
|
}
|
|
|
|
return await Task.Run(() => Connect(serverUrl, useSecurity, sessionTimeout));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Create a new reverse connection.
|
|
/// </summary>
|
|
/// <param name="connection"></param>
|
|
/// <param name="useSecurity"></param>
|
|
public async Task<Session> ConnectAsync(
|
|
ITransportWaitingConnection connection,
|
|
bool useSecurity,
|
|
int discoverTimeout = -1,
|
|
uint sessionTimeout = 0
|
|
)
|
|
{
|
|
if (connection.EndpointUrl == null)
|
|
{
|
|
throw new ArgumentException("Endpoint URL is not valid.");
|
|
}
|
|
|
|
UrlCB.Text = connection.EndpointUrl.ToString();
|
|
UseSecurityCK.Checked = useSecurity;
|
|
|
|
EndpointDescription endpointDescription = null;
|
|
|
|
if (!m_endpoints.TryGetValue(connection.EndpointUrl, out endpointDescription))
|
|
{
|
|
// Discovery uses the reverse connection and closes it
|
|
// return and wait for next reverse hello
|
|
endpointDescription = CoreClientUtils.SelectEndpoint(m_configuration, connection, useSecurity, discoverTimeout);
|
|
m_endpoints[connection.EndpointUrl] = endpointDescription;
|
|
return null;
|
|
}
|
|
|
|
return await Connect(connection, endpointDescription, UseSecurityCK.Checked, sessionTimeout);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Disconnects from the server.
|
|
/// </summary>
|
|
public Task DisconnectAsync()
|
|
{
|
|
UpdateStatus(false, DateTime.UtcNow, "Disconnected");
|
|
return Task.Run(() => InternalDisconnect());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Disconnects from the server.
|
|
/// </summary>
|
|
private void InternalDisconnect()
|
|
{
|
|
// stop any reconnect operation.
|
|
if (m_reconnectHandler != null)
|
|
{
|
|
m_reconnectHandler.Dispose();
|
|
m_reconnectHandler = null;
|
|
}
|
|
|
|
// disconnect any existing session.
|
|
if (m_session != null)
|
|
{
|
|
m_session.KeepAlive -= Session_KeepAlive;
|
|
m_session.Close(10000);
|
|
m_session = null;
|
|
}
|
|
|
|
// raise an event.
|
|
DoConnectComplete(null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Disconnects from the server.
|
|
/// </summary>
|
|
public void Disconnect()
|
|
{
|
|
UpdateStatus(false, DateTime.UtcNow, "Disconnected");
|
|
|
|
// stop any reconnect operation.
|
|
InternalDisconnect();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prompts the user to choose a server on another host.
|
|
/// </summary>
|
|
public void Discover(string hostName)
|
|
{
|
|
string endpointUrl = new DiscoverServerDlg().ShowDialog(m_configuration, hostName);
|
|
|
|
if (endpointUrl != null)
|
|
{
|
|
ServerUrl = endpointUrl;
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
#region Private Methods
|
|
/// <summary>
|
|
/// Raises the connect complete event on the main GUI thread.
|
|
/// </summary>
|
|
private void DoConnectComplete(object state)
|
|
{
|
|
if (m_ConnectComplete != null)
|
|
{
|
|
if (this.InvokeRequired)
|
|
{
|
|
this.BeginInvoke(new System.Threading.WaitCallback(DoConnectComplete), state);
|
|
return;
|
|
}
|
|
|
|
m_ConnectComplete(this, null);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finds the endpoint that best matches the current settings.
|
|
/// </summary>
|
|
private EndpointDescription SelectEndpoint()
|
|
{
|
|
try
|
|
{
|
|
Cursor = Cursors.WaitCursor;
|
|
|
|
// determine the URL that was selected.
|
|
string discoveryUrl = UrlCB.Text;
|
|
|
|
if (UrlCB.SelectedIndex >= 0)
|
|
{
|
|
discoveryUrl = (string)UrlCB.SelectedItem;
|
|
}
|
|
|
|
// return the selected endpoint.
|
|
return CoreClientUtils.SelectEndpoint(m_configuration, discoveryUrl, UseSecurityCK.Checked, DiscoverTimeout);
|
|
}
|
|
finally
|
|
{
|
|
Cursor = Cursors.Default;
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
#region Event Handlers
|
|
private delegate void UpdateStatusCallback(bool error, DateTime time, string status, params object[] arg);
|
|
/// <summary>
|
|
/// Updates the status control.
|
|
/// </summary>
|
|
/// <param name="error">Whether the status represents an error.</param>
|
|
/// <param name="time">The time associated with the status.</param>
|
|
/// <param name="status">The status message.</param>
|
|
/// <param name="args">Arguments used to format the status message.</param>
|
|
private void UpdateStatus(bool error, DateTime time, string status, params object[] args)
|
|
{
|
|
if (this.InvokeRequired)
|
|
{
|
|
this.BeginInvoke(new UpdateStatusCallback(UpdateStatus), error, time, status, args);
|
|
return;
|
|
}
|
|
|
|
if (m_ServerStatusLB != null)
|
|
{
|
|
m_ServerStatusLB.Text = String.Format(status, args);
|
|
m_ServerStatusLB.ForeColor = (error) ? Color.Red : Color.Empty;
|
|
}
|
|
|
|
if (m_StatusUpateTimeLB != null)
|
|
{
|
|
m_StatusUpateTimeLB.Text = time.ToLocalTime().ToString("hh:mm:ss");
|
|
m_StatusUpateTimeLB.ForeColor = (error) ? Color.Red : Color.Empty;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handles a keep alive event from a session.
|
|
/// </summary>
|
|
private void Session_KeepAlive(Session session, KeepAliveEventArgs e)
|
|
{
|
|
if (this.InvokeRequired)
|
|
{
|
|
this.BeginInvoke(new KeepAliveEventHandler(Session_KeepAlive), session, e);
|
|
return;
|
|
}
|
|
|
|
try
|
|
{
|
|
// check for events from discarded sessions.
|
|
if (!Object.ReferenceEquals(session, m_session))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// start reconnect sequence on communication error.
|
|
if (ServiceResult.IsBad(e.Status))
|
|
{
|
|
if (ReconnectPeriod <= 0)
|
|
{
|
|
UpdateStatus(true, e.CurrentTime, "Communication Error ({0})", e.Status);
|
|
return;
|
|
}
|
|
|
|
UpdateStatus(true, e.CurrentTime, "Reconnecting in {0}s", ReconnectPeriod);
|
|
|
|
if (m_reconnectHandler == null)
|
|
{
|
|
if (m_ReconnectStarting != null)
|
|
{
|
|
m_ReconnectStarting(this, e);
|
|
}
|
|
|
|
m_reconnectHandler = new SessionReconnectHandler();
|
|
m_reconnectHandler.BeginReconnect(m_session, ReconnectPeriod * 1000, Server_ReconnectComplete);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// update status.
|
|
UpdateStatus(false, e.CurrentTime, "Connected [{0}]", session.Endpoint.EndpointUrl);
|
|
|
|
// raise any additional notifications.
|
|
if (m_KeepAliveComplete != null)
|
|
{
|
|
m_KeepAliveComplete(this, e);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handles a click on the connect button.
|
|
/// </summary>
|
|
private async void Server_ConnectMI_Click(object sender, EventArgs e)
|
|
{
|
|
try
|
|
{
|
|
await ConnectAsync();
|
|
}
|
|
catch (ServiceResultException sre)
|
|
{
|
|
if (sre.StatusCode == StatusCodes.BadCertificateHostNameInvalid)
|
|
{
|
|
if (GuiUtils.HandleDomainCheckError(this.FindForm().Text, sre.Result))
|
|
{
|
|
DisableDomainCheck = true;
|
|
};
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handles a reconnect event complete from the reconnect handler.
|
|
/// </summary>
|
|
private void Server_ReconnectComplete(object sender, EventArgs e)
|
|
{
|
|
if (this.InvokeRequired)
|
|
{
|
|
this.BeginInvoke(new EventHandler(Server_ReconnectComplete), sender, e);
|
|
return;
|
|
}
|
|
|
|
try
|
|
{
|
|
// ignore callbacks from discarded objects.
|
|
if (!Object.ReferenceEquals(sender, m_reconnectHandler))
|
|
{
|
|
return;
|
|
}
|
|
|
|
m_session = m_reconnectHandler.Session;
|
|
m_reconnectHandler.Dispose();
|
|
m_reconnectHandler = null;
|
|
|
|
// raise any additional notifications.
|
|
if (m_ReconnectComplete != null)
|
|
{
|
|
m_ReconnectComplete(this, e);
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handles a certificate validation error.
|
|
/// </summary>
|
|
private void CertificateValidator_CertificateValidation(CertificateValidator sender, CertificateValidationEventArgs e)
|
|
{
|
|
if (this.InvokeRequired)
|
|
{
|
|
this.Invoke(new CertificateValidationEventHandler(CertificateValidator_CertificateValidation), sender, e);
|
|
return;
|
|
}
|
|
|
|
try
|
|
{
|
|
if (!m_configuration.SecurityConfiguration.AutoAcceptUntrustedCertificates)
|
|
{
|
|
GuiUtils.HandleCertificateValidationError(this.FindForm(), sender, e);
|
|
}
|
|
else
|
|
{
|
|
e.Accept = true;
|
|
}
|
|
}
|
|
catch (Exception exception)
|
|
{
|
|
ClientUtils.HandleException(this.Text, exception);
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
}
|