private async void StartScan()
{
DisplayStatusMessage = false;
StatusMessage = string.Empty;
IsScanRunning = true;
PreparingScan = true;
// Measure the time
StartTime = DateTime.Now;
stopwatch.Start();
dispatcherTimer.Tick += DispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);
dispatcherTimer.Start();
EndTime = null;
PortScanResult.Clear();
PortsOpen = 0;
cancellationTokenSource = new CancellationTokenSource();
string[] hosts = Hostname.Split(';');
List <Tuple <IPAddress, string> > hostData = new List <Tuple <IPAddress, string> >();
for (int i = 0; i < hosts.Length; i++)
{
string host = hosts[i].Trim();
string hostname = string.Empty;
IPAddress.TryParse(host, out IPAddress ipAddress);
try
{
// Resolve DNS
// Try to resolve the hostname
if (ipAddress == null)
{
IPHostEntry ipHostEntry = await Dns.GetHostEntryAsync(host);
foreach (IPAddress ip in ipHostEntry.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork && SettingsManager.Current.PortScanner_ResolveHostnamePreferIPv4)
{
ipAddress = ip;
continue;
}
else if (ip.AddressFamily == AddressFamily.InterNetworkV6 && !SettingsManager.Current.PortScanner_ResolveHostnamePreferIPv4)
{
ipAddress = ip;
continue;
}
}
// Fallback --> If we could not resolve our prefered ip protocol
if (ipAddress == null)
{
foreach (IPAddress ip in ipHostEntry.AddressList)
{
ipAddress = ip;
continue;
}
}
hostname = host;
}
else
{
try
{
IPHostEntry ipHostEntry = await Dns.GetHostEntryAsync(ipAddress);
hostname = ipHostEntry.HostName;
}
catch { }
}
}
catch (SocketException) // This will catch DNS resolve errors
{
if (!string.IsNullOrEmpty(StatusMessage))
{
StatusMessage += Environment.NewLine;
}
StatusMessage += string.Format(Application.Current.Resources["String_CouldNotResolveHostnameFor"] as string, host);
DisplayStatusMessage = true;
continue;
}
hostData.Add(Tuple.Create(ipAddress, hostname));
}
if (hostData.Count == 0)
{
StatusMessage += Environment.NewLine + Application.Current.Resources["String_NothingToDoCheckYourInput"] as string;
DisplayStatusMessage = true;
ScanFinished();
return;
}
int[] ports = await PortRangeHelper.ConvertPortRangeToIntArrayAsync(Ports);
try
{
PortsToScan = ports.Length * hostData.Count;
PortsScanned = 0;
PreparingScan = false;
HostnameHistory = new List <string>(HistoryListHelper.Modify(HostnameHistory, Hostname, SettingsManager.Current.Application_HistoryListEntries));
PortsHistory = new List <string>(HistoryListHelper.Modify(PortsHistory, Ports, SettingsManager.Current.Application_HistoryListEntries));
PortScannerOptions portScannerOptions = new PortScannerOptions
{
Threads = SettingsManager.Current.PortScanner_Threads,
ShowClosed = SettingsManager.Current.PortScanner_ShowClosed,
Timeout = SettingsManager.Current.PortScanner_Timeout
};
PortScanner portScanner = new PortScanner();
portScanner.PortScanned += PortScanner_PortScanned;
portScanner.ScanComplete += PortScanner_ScanComplete;
portScanner.ProgressChanged += PortScanner_ProgressChanged;
portScanner.UserHasCanceled += PortScanner_UserHasCanceled;
portScanner.ScanAsync(hostData, ports, portScannerOptions, cancellationTokenSource.Token);
}
catch (Exception ex) // This will catch any exception
{
StatusMessage = ex.Message;
DisplayStatusMessage = true;
ScanFinished();
}
}
private async void StartScan()
{
DisplayStatusMessage = false;
StatusMessage = string.Empty;
IsScanRunning = true;
PreparingScan = true;
// Measure the time
StartTime = DateTime.Now;
stopwatch.Start();
dispatcherTimer.Tick += DispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0, 0, 0, 0, 100);
dispatcherTimer.Start();
EndTime = null;
PortScanResult.Clear();
PortsOpen = 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;
}
}
cancellationTokenSource = new CancellationTokenSource();
string[] hosts = Host.Split(';');
List <Tuple <IPAddress, string> > hostData = new List <Tuple <IPAddress, string> >();
for (int i = 0; i < hosts.Length; i++)
{
string host = hosts[i].Trim();
string hostname = string.Empty;
IPAddress.TryParse(host, out IPAddress ipAddress);
try
{
// Resolve DNS
// Try to resolve the hostname
if (ipAddress == null)
{
IPHostEntry ipHostEntry = await Dns.GetHostEntryAsync(host);
foreach (IPAddress ip in ipHostEntry.AddressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork && SettingsManager.Current.PortScanner_ResolveHostnamePreferIPv4)
{
ipAddress = ip;
continue;
}
else if (ip.AddressFamily == AddressFamily.InterNetworkV6 && !SettingsManager.Current.PortScanner_ResolveHostnamePreferIPv4)
{
ipAddress = ip;
continue;
}
}
// Fallback --> If we could not resolve our prefered ip protocol
if (ipAddress == null)
{
foreach (IPAddress ip in ipHostEntry.AddressList)
{
ipAddress = ip;
continue;
}
}
hostname = host;
}
else
{
try
{
IPHostEntry ipHostEntry = await Dns.GetHostEntryAsync(ipAddress);
hostname = ipHostEntry.HostName;
}
catch { }
}
}
catch (SocketException) // This will catch DNS resolve errors
{
if (!string.IsNullOrEmpty(StatusMessage))
{
StatusMessage += Environment.NewLine;
}
StatusMessage += string.Format(LocalizationManager.GetStringByKey("String_CouldNotResolveHostnameFor"), host);
DisplayStatusMessage = true;
continue;
}
hostData.Add(Tuple.Create(ipAddress, hostname));
}
if (hostData.Count == 0)
{
StatusMessage += Environment.NewLine + LocalizationManager.GetStringByKey("String_NothingToDoCheckYourInput");
DisplayStatusMessage = true;
ScanFinished();
return;
}
int[] ports = await PortRangeHelper.ConvertPortRangeToIntArrayAsync(Port);
try
{
PortsToScan = ports.Length * hostData.Count;
PortsScanned = 0;
PreparingScan = false;
AddHostToHistory(Host);
AddPortToHistory(Port);
PortScannerOptions portScannerOptions = new PortScannerOptions
{
Threads = SettingsManager.Current.PortScanner_Threads,
ShowClosed = SettingsManager.Current.PortScanner_ShowClosed,
Timeout = SettingsManager.Current.PortScanner_Timeout
};
PortScanner portScanner = new PortScanner();
portScanner.PortScanned += PortScanner_PortScanned;
portScanner.ScanComplete += PortScanner_ScanComplete;
portScanner.ProgressChanged += PortScanner_ProgressChanged;
portScanner.UserHasCanceled += PortScanner_UserHasCanceled;
portScanner.ScanAsync(hostData, ports, portScannerOptions, cancellationTokenSource.Token);
}
catch (Exception ex) // This will catch any exception
{
StatusMessage = ex.Message;
DisplayStatusMessage = true;
ScanFinished();
}
}