private async void Work()
        {
            DisplayStatusMessage = false;
            IsWorking            = true;

            // Measure time
            StartTime = DateTime.Now;
            stopwatch.Start();
            dispatcherTimer.Tick    += DispatcherTimer_Tick;
            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);
            dispatcherTimer.Start();
            EndTime = null;

            QueryResult.Clear();
            Responses = 0;

            // Change the tab title (not nice, but it works)
            Window window = Application.Current.Windows.OfType <Window>().FirstOrDefault(x => x.IsActive);

            if (window != null)
            {
                foreach (TabablzControl tabablzControl in VisualTreeHelper.FindVisualChildren <TabablzControl>(window))
                {
                    tabablzControl.Items.OfType <DragablzTabItem>().First(x => x.ID == _tabId).Header = Host;
                }
            }

            // Try to parse the string into an IP-Address
            IPAddress.TryParse(Host, out IPAddress ipAddress);

            try
            {
                // Try to resolve the hostname
                if (ipAddress == null)
                {
                    IPHostEntry ipHostEntrys = await Dns.GetHostEntryAsync(Host);

                    foreach (IPAddress ipAddr in ipHostEntrys.AddressList)
                    {
                        if (ipAddr.AddressFamily == AddressFamily.InterNetwork && SettingsManager.Current.SNMP_ResolveHostnamePreferIPv4)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                        else if (ipAddr.AddressFamily == AddressFamily.InterNetworkV6 && !SettingsManager.Current.SNMP_ResolveHostnamePreferIPv4)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                    }

                    // Fallback --> If we could not resolve our prefered ip protocol for the hostname
                    if (ipAddress == null)
                    {
                        foreach (IPAddress ipAddr in ipHostEntrys.AddressList)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                    }
                }
            }
            catch (SocketException) // This will catch DNS resolve errors
            {
                Finished();

                StatusMessage        = string.Format(LocalizationManager.GetStringByKey("String_CouldNotResolveHostnameFor"), Host);
                DisplayStatusMessage = true;

                return;
            }

            // SNMP...
            SNMPOptions snmpOptions = new SNMPOptions()
            {
                Port    = SettingsManager.Current.SNMP_Port,
                Timeout = SettingsManager.Current.SNMP_Timeout
            };

            SNMP snmp = new SNMP();

            snmp.Received        += Snmp_Received;
            snmp.Timeout         += Snmp_Timeout;
            snmp.Error           += Snmp_Error;
            snmp.UserHasCanceled += Snmp_UserHasCanceled;
            snmp.Complete        += Snmp_Complete;

            switch (Mode)
            {
            case SNMPMode.Get:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Getv1v2cAsync(Version, ipAddress, Community, OID, snmpOptions);
                }
                else
                {
                    snmp.Getv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, snmpOptions);
                }

                break;

            case SNMPMode.Walk:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Walkv1v2cAsync(Version, ipAddress, Community, OID, SettingsManager.Current.SNMP_WalkMode, snmpOptions);
                }
                else
                {
                    snmp.Walkv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, SettingsManager.Current.SNMP_WalkMode, snmpOptions);
                }

                break;

            case SNMPMode.Set:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Setv1v2cAsync(Version, ipAddress, Community, OID, Data, snmpOptions);
                }
                else
                {
                    snmp.Setv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, Data, snmpOptions);
                }
                break;
            }

            // Add to history...
            AddHostToHistory(Host);
            AddOIDToHistory(OID);
        }
Beispiel #2
0
        private async void Work()
        {
            DisplayStatusMessage = false;
            IsWorking            = true;

            // Measure time
            StartTime = DateTime.Now;
            stopwatch.Start();
            dispatcherTimer.Tick    += DispatcherTimer_Tick;
            dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);
            dispatcherTimer.Start();
            EndTime = null;

            QueryResult.Clear();
            Responses = 0;

            // Try to parse the string into an IP-Address
            IPAddress.TryParse(Host, out IPAddress ipAddress);

            try
            {
                // Try to resolve the hostname
                if (ipAddress == null)
                {
                    IPHostEntry ipHostEntrys = await Dns.GetHostEntryAsync(Host);

                    foreach (IPAddress ipAddr in ipHostEntrys.AddressList)
                    {
                        if (ipAddr.AddressFamily == AddressFamily.InterNetwork && SettingsManager.Current.SNMP_ResolveHostnamePreferIPv4)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                        else if (ipAddr.AddressFamily == AddressFamily.InterNetworkV6 && !SettingsManager.Current.SNMP_ResolveHostnamePreferIPv4)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                    }

                    // Fallback --> If we could not resolve our prefered ip protocol for the hostname
                    if (ipAddress == null)
                    {
                        foreach (IPAddress ipAddr in ipHostEntrys.AddressList)
                        {
                            ipAddress = ipAddr;
                            continue;
                        }
                    }
                }
            }
            catch (SocketException) // This will catch DNS resolve errors
            {
                Finished();

                StatusMessage        = string.Format(Application.Current.Resources["String_CouldNotResolveHostnameFor"] as string, Host);
                DisplayStatusMessage = true;

                return;
            }

            // SNMP...
            SNMPOptions snmpOptions = new SNMPOptions()
            {
                Port    = SettingsManager.Current.SNMP_Port,
                Timeout = SettingsManager.Current.SNMP_Timeout
            };

            SNMP snmp = new SNMP();

            snmp.Received        += Snmp_Received;
            snmp.Timeout         += Snmp_Timeout;
            snmp.Error           += Snmp_Error;
            snmp.UserHasCanceled += Snmp_UserHasCanceled;
            snmp.Complete        += Snmp_Complete;

            switch (Mode)
            {
            case SNMPMode.Get:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Getv1v2cAsync(Version, ipAddress, Community, OID, snmpOptions);
                }
                else
                {
                    snmp.Getv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, snmpOptions);
                }

                break;

            case SNMPMode.Walk:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Walkv1v2cAsync(Version, ipAddress, Community, OID, SettingsManager.Current.SNMP_WalkMode, snmpOptions);
                }
                else
                {
                    snmp.Walkv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, SettingsManager.Current.SNMP_WalkMode, snmpOptions);
                }

                break;

            case SNMPMode.Set:
                if (Version != SNMPVersion.v3)
                {
                    snmp.Setv1v2cAsync(Version, ipAddress, Community, OID, Data, snmpOptions);
                }
                else
                {
                    snmp.Setv3Async(ipAddress, OID, Security, Username, AuthenticationProvider, Auth, PrivacyProvider, Priv, Data, snmpOptions);
                }
                break;
            }

            // Add to history...
            AddHostToHistory(Host);
            AddOIDToHistory(OID);
        }