/// <summary>Check array of ports for correctness as range of ports.</summary>
/// <param name="ports">Array to check.</param>
/// <returns>Correctess of array.</returns>
public static bool CheckArrayOnRangeCorrectness(Port[] ports)
{
if (ports.Length == 0)
{
return(false);
}
RangeOfPorts rangeOfPorts = new RangeOfPorts();
if (ports.Length == 2 || ports.Length == 4)
{
rangeOfPorts.FromTcp = ports[0].Value;
rangeOfPorts.ToTcp = ports[1].Value;
}
else
{
return(false);
}
if (ports.Length == 4)
{
rangeOfPorts.FromUdp = ports[2].Value;
rangeOfPorts.ToUdp = ports[3].Value;
}
return(rangeOfPorts.IsValid);
}
/// <summary>Scan all of ports in host.</summary>
/// <exception cref="ArgumentNullException">Throws when <see cref="Host"/> or <see cref="Ports"/> was equals null.</exception>
/// <exception cref="RangeOfPortsException">Throws when <see cref="Ports"/> parameter not looks like a range.</exception>
public async Task ScanAllAsync()
{
if (Host == null)
{
throw new ArgumentNullException(nameof(Host), "Host value was equals null.");
}
if (Ports == null)
{
throw new ArgumentNullException(nameof(Ports), "Ports value was equals null.");
}
if (!RangeOfPorts.CheckArrayOnRangeCorrectness(Ports))
{
throw new RangeOfPortsException("Ports array are not correct.");
}
_scannedPortsCount = 0;
try
{
await _checker.HostIsValidAsync(Host);
List <Port> results = new List <Port>();
if (Ports.Length == 2 || Ports.Length == 4)
{
Port[] scannedPorts = await ScanRange(Ports[0], Ports[1]);
results.AddRange(scannedPorts);
}
if (Ports.Length == 4)
{
Port[] scannedPorts = await ScanRange(Ports[2], Ports[3]);
results.AddRange(scannedPorts);
}
Port[] sortedResults = results.OrderBy(result => result.Value).ToArray();
OnScanEnding?.Invoke(new ScanResult(Host, DateTime.Now, sortedResults));
}
catch (HostNotValidException)
{
OnScanEnding?.Invoke(new ScanResult(Host, DateTime.Now, new Port[] { }, false));
}
catch (Exception ex)
{
new Error(ex).HandleError();
}
_scannedPortsCount = 0;
_aborted = false;
}
public RangeOfPortsException(string message, RangeOfPorts range) : this(message)
{
Range = range;
}