/// <summary>
/// Waits for tasks.
/// </summary>
/// <param name="tasks">The tasks.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="onTaskComplete">The on task complete.</param>
/// <param name="logger">The logger.</param>
/// <param name="memberName">Name of the member.</param>
/// <returns>Task.</returns>
/// <autogeneratedoc />
public static Task WaitForTasks(this List <Task> tasks, CancellationToken cancellationToken, Action <Task> onTaskComplete = null,
IPureLogger logger = null, [CallerMemberName] string memberName = "")
{
Task t = Task.WhenAll(tasks);
try
{
cancellationToken.ThrowIfCancellationRequested();
t.Wait(cancellationToken);
}
catch (OperationCanceledException ex)
{
t = Task.FromCanceled(cancellationToken);
logger?.LogError(ex, "Task {Method} timed out with {TaskStatus}", memberName, t.Status);
}
catch (Exception ex)
{
t = Task.FromException(ex);
logger?.LogError(ex, "Task {Method} threw an exception with {TaskStatus}", memberName, t.Status);
}
finally
{
onTaskComplete?.Invoke(t);
}
return(t);
}
/// <summary>
/// Reads socket and processes packet
/// </summary>
/// <param name="socket">The active socket.</param>
protected virtual void OnSocket(Socket socket)
{
try
{
if (socket.Poll(-1, SelectMode.SelectRead))
{
var args = new ClientConnectedEventArgs(socket, Logger, _bufferSize);
EndPoint remoteEndPoint = new IPEndPoint(0, 0);
if (socket.Available == 0)
{
return;
}
args.ChannelBuffer.BytesTransferred = socket.ReceiveFrom(args.ChannelBuffer.Buffer,
SocketFlags.None, ref remoteEndPoint);
args.Channel.RemoteEndpoint = remoteEndPoint;
if (args.ChannelBuffer.BytesTransferred > 0)
{
OnClientConnected(args);
if (args.AllowConnect == false)
{
if (args.Response != null)
{
int sentBytes;
while ((sentBytes = args.Response.Read(_sendBuffer, 0, _sendBuffer.Length)) > 0)
{
socket.Send(_sendBuffer, sentBytes, SocketFlags.None);
}
}
Logger?.LogDebug(
"PACKET request on {LocalEndPoint} from {RemoteEndPoint} with channel id {ChannelId} was denied access to connect.",
socket.LocalEndPoint,
args.Channel.RemoteEndpoint,
args.Channel.ChannelId);
}
}
}
else
{
Thread.Sleep(10);
}
}
catch (SocketException ex)
{
if (ex.ErrorCode == (int)SocketError.ConnectionReset)
{
Logger.LogError(ex, "SocketListener: socket connection reset");
}
}
catch (Exception ex)
{
HandleDisconnect(SocketError.SocketError, ex);
}
}
/// <summary>
/// Gets the default local address subnet.
/// </summary>
/// <returns>IPAddressSubnet.</returns>
/// <autogeneratedoc />
public IPAddressSubnet GetDefaultLocalAddressSubnet()
{
var ipAddressSubnet = new IPAddressSubnet(IPAddress.None, IPAddress.None);
try
{
foreach (var networkInterface in GetAllNetworkInterfaces())
{
ipAddressSubnet = IPv4AddressSubnetFromNetworkInterface(networkInterface);
// break if we find an IPv4 Interface
if (!ipAddressSubnet.Equals(IPAddressSubnet.None))
{
break;
}
}
}
catch (Exception ex)
{
_logger?.LogError(ex, "GetDefaultLocalAddressSubnet failed");
}
return(ipAddressSubnet);
}
/// <summary>
/// Stops the service listener if in started state.
/// </summary>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
/// <exception cref="InvalidOperationException">SocketListener is not active and must be started before stopping</exception>
public bool Stop()
{
try
{
if (!IsActive)
{
throw new InvalidOperationException(
"SocketListener is not active and must be started before stopping");
}
IsActive = false;
Logger?.LogInformation("SocketListener stopped listening for requests on {LocalEndPoint}",
Socket.LocalEndPoint);
return(true);
}
catch (Exception ex)
{
Logger?.LogError(ex, "SocketLister stop failed");
}
return(false);
}
/// <summary>
/// Gets the DHCP option string.
/// </summary>
/// <param name="dhcpOption">The DHCP option.</param>
/// <param name="dhcpOptionValue">The DHCP option value.</param>
/// <param name="dhcpRequestListFormat">The DHCP request list format.</param>
/// <param name="logger">The logger.</param>
/// <returns>System.String.</returns>
/// <autogeneratedoc />
public static string GetDhcpOptionString(
DhcpOption dhcpOption, byte[] dhcpOptionValue,
DhcpRequestListFormat dhcpRequestListFormat = DhcpRequestListFormat.StringNewlineIndentedSeparated,
IPureLogger logger = null
)
{
try
{
if (dhcpOptionValue == null)
{
return("Null");
}
if (dhcpOption == DhcpOption.ParamReqList)
{
return(GetDhcpRequestListString(dhcpOptionValue, dhcpRequestListFormat, logger));
}
switch (DhcpOptionTypes[dhcpOption])
{
case DhcpOptionType.IPAddress:
return(new IPAddress(dhcpOptionValue).ToString());
case DhcpOptionType.PhysicalAddressSkip1DashString:
return(new PhysicalAddress(dhcpOptionValue.Skip(1).ToArray()).ToDashString());
case DhcpOptionType.PhysicalAddressSkip1ColonString:
return(new PhysicalAddress(dhcpOptionValue.Skip(1).ToArray()).ToColonString());
case DhcpOptionType.PhysicalAddressDashString:
return(new PhysicalAddress(dhcpOptionValue).ToDashString());
case DhcpOptionType.PhysicalAddressColonString:
return(new PhysicalAddress(dhcpOptionValue).ToColonString());
case DhcpOptionType.MessageTypeString:
return(MessageTypeString.GetName((MessageType)dhcpOptionValue[0]));
case DhcpOptionType.SafeString:
return(ByteUtility.GetSafeString(dhcpOptionValue));
case DhcpOptionType.SafeBytes:
return(ByteUtility.PrintSafeBytes(dhcpOptionValue));
case DhcpOptionType.UInt16:
return(BitConverter.ToUInt16(dhcpOptionValue, 0).ToString());
case DhcpOptionType.UInt32:
return(BitConverter.ToUInt32(dhcpOptionValue, 0).ToString());
case DhcpOptionType.UInt16Network:
return(IPAddress.NetworkToHostOrder(BitConverter.ToUInt16(dhcpOptionValue, 0)).ToString());
case DhcpOptionType.UInt32Network:
return(IPAddress.NetworkToHostOrder(BitConverter.ToUInt32(dhcpOptionValue, 0)).ToString());
}
}
catch (Exception ex)
{
logger?.LogError(ex, "Invalid DhcpOption: {dhcpOption}", dhcpOption);
}
return(string.Empty);
}