public Communicator(int serverPort, INetworkClient client, INetworkListener listener)
{
ServerName = Environment.MachineName;
ServerPort = serverPort;
Client = client;
Listener = listener;
}
/// <summary>
/// Method responsible to connect client in server.
/// </summary>
/// <param name="ip">The ip address from server.</param>
/// <param name="port">The port number from server, the default value us 7171</param>
/// <param name="listenerType">The listener type to creation of listener, the default value is NetworkListenerType.TCP.</param>
/// <param name="maxMessageBuffer">The max length of message buffer, the default value is 4096.</param>
/// <returns>The boolean value of client connection.</returns>
public bool Connect(string ip, ushort port = 7171, NetworkListenerType listenerType = NetworkListenerType.TCP, ushort maxMessageBuffer = 4096)
{
try
{
if (listenerType == NetworkListenerType.TCP)
{
_networkListener = new TcpNetworkListener(OnMessageReceived, OnDisconnected);
}
else if (listenerType == NetworkListenerType.UDP)
{
_networkListener = new UdpNetworkListener(OnMessageReceived, OnDisconnected);
}
else if (listenerType == NetworkListenerType.WSBinary || listenerType == NetworkListenerType.WSText)
{
_networkListener = new WSNetworkListener(listenerType, OnMessageReceived, OnDisconnected);
}
_clientThread = new Thread(() =>
{
_networkListener.StartClient(ip, port, maxMessageBuffer);
});
_clientThread.IsBackground = true;
_clientThread.Start();
Thread.Sleep(15); // Delay for socket connection.
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}.");
}
return(HasConnected);
}
public void AddListener(INetworkListener listener)
{
lock (m_listeners)
{
m_listeners.Add(listener);
}
}
public void RemoveListener(INetworkListener listener)
{
lock (m_listeners)
{
m_listeners.Remove(listener);
}
}
private void Initialize(int listenPort, INetworkListener transportListener, Envelope messageEnvelope)
{
Port = listenPort;
listener = transportListener;
Envelope = messageEnvelope;
listener.Initialize(Port);
}
public virtual async ValueTask BindAsync(EndPoint endpoint, CancellationToken cancellationToken = default)
{
if (endpoint is IPEndPoint ipEndpoint)
{
_ipEndpoint = ipEndpoint;
}
else
{
throw new NotSupportedException("Only IPEndPoint are currently supported by inline sockets.");
}
_logger.BindListenSocket(_ipEndpoint);
_listener = _networkProvider.CreateListener(new NetworkListenerSettings
{
IPEndPoint = _ipEndpoint,
AllowNatTraversal = _options.AllowNatTraversal,
ExclusiveAddressUse = _options.ExclusiveAddressUse,
ListenerBacklog = _options.ListenBacklog,
NoDelay = _options.NoDelay,
});
// the only way to cancel a call to accept a socket is to stop the listener.
// this is okay, because this call is cancelled only when the listener is about to be
// unbound and disposed anyway.
_listenerCancellationCallback = _listener.Stop;
_listener.Start();
}
private async Task Run()
{
INetworkListener listener = _serviceProvider.GetService <INetworkListener>();
await listener.Listen(43594);
Console.ReadKey();
}
/// <summary>
/// Method responsible for start the async network listener.
/// </summary>
/// <param name="cancellationToken">The cancellation token for the task execution.</param>
/// <param name="listenerType">The listener type to creation of listener, the default value is NetworkListenerType.TCP.</param>
private async Task StartListenerAsync(CancellationToken cancellationToken, NetworkListenerType listenerType = NetworkListenerType.TCP)
{
try
{
if (listenerType == NetworkListenerType.TCP)
{
_networkListener = new TcpNetworkListener(_port, OnClientConnected, OnMessageReceived, OnClientDisconnected, _maxMessageBuffer);
}
else if (listenerType == NetworkListenerType.UDP)
{
_networkListener = new UdpNetworkListener(_port, OnClientConnected, OnMessageReceived, OnClientDisconnected, _maxMessageBuffer);
}
else if (listenerType == NetworkListenerType.WSBinary || listenerType == NetworkListenerType.WSText)
{
_networkListener = new WebSocketNetworkListener(listenerType, _port, OnClientConnected, OnMessageReceived, OnClientDisconnected, _maxMessageBuffer);
}
OnServerStartedHandler?.Invoke();
while (!cancellationToken.IsCancellationRequested)
{
await Task.Delay(TimeSpan.FromSeconds(1), cancellationToken);
}
}
catch (Exception ex)
{
Console.WriteLine($"Error: {ex.Message}.");
}
}
/// <summary>
/// Listen indefinitely for network connections on the specified port.
/// </summary>
private async Task ListenForConnectionsAsync()
{
INetworkListener listener = null;
try
{
var noDelay = Options?.TcpNoDelay ?? DicomServiceOptions.Default.TcpNoDelay;
listener = NetworkManager.CreateNetworkListener(IPAddress, Port);
await listener.StartAsync().ConfigureAwait(false);
IsListening = true;
while (!_cancellationSource.IsCancellationRequested)
{
await _hasNonMaxServicesFlag.WaitAsync().ConfigureAwait(false);
var networkStream = await listener
.AcceptNetworkStreamAsync(_certificateName, noDelay, _cancellationSource.Token)
.ConfigureAwait(false);
if (networkStream != null)
{
var scp = CreateScp(networkStream);
if (Options != null)
{
scp.Options = Options;
}
var serviceTask = scp.RunAsync();
lock (_services)
{
_services.Add(new RunningDicomService(scp, serviceTask));
}
_hasServicesFlag.Set();
if (IsServicesAtMax)
{
_hasNonMaxServicesFlag.Reset();
}
}
}
}
catch (OperationCanceledException)
{
}
catch (Exception e)
{
Logger.Error("Exception listening for DICOM services, {@error}", e);
Stop();
Exception = e;
}
finally
{
listener?.Stop();
IsListening = false;
}
}
public void SetListener(INetworkListener listener)
{
if (listener != null)
{
this.listener = listener;
State = ConnectingState.NeverConnect;
Connect();
}
}
public AcceptState(IClientEntry new_client, string remote_endpoint,
string local_endpoint, INetworkListener listener, Exception exception)
{
NewClient = new_client;
RemoteEndpoint = remote_endpoint;
LocalEndpoint = local_endpoint;
Listener = listener;
Exception = exception;
}
private void Initialize()
{
rtcpNetworkListener = new UdpListener(rtpSession.RtcpEndPoint, RtpSession.DefaultNetworkTimeout * 2);
threadRtcpListener = new Thread(new ThreadStart(ListenThread));
threadRtcpListener.IsBackground = true;
threadRtcpListener.Name = "RtcpListener";
threadRtcpListener.Start();
}
private static void AddListener(List <string> builder, INetworkListener listener)
{
if (listener is AggregateNetworkListener)
{
AddAggregateListener(builder, (AggregateNetworkListener)listener);
}
else
{
builder.Add(listener.ToString());
}
}
/// <summary>
/// Clean up the RtcpListener
///
/// A thread will not abort until it is in the running state. Our listening thread is
/// generally blocked by the call to rtcpNetworkListener.ReceiveFrom(). In order to
/// dispose things quickly and efficiently, we tell the listening thread to abort as soon
/// as it is back in the running state. Then we clean up the network listener which should
/// unblock us.
/// </summary>
/// <param name="disposing"></param>
private void Dispose(bool disposing)
{
lock (this)
{
disposed = true;
threadRtcpListener.Abort();
threadRtcpListener = null;
rtcpNetworkListener.Dispose();
rtcpNetworkListener = null;
}
}
private void InitializeNetwork()
{
if (Utility.IsMulticast(groupEP) && (!nextHopEP.Equals(groupEP)))
{
// reflector based session
rtpNetworkListener = new UdpListener(groupEP, nextHopEP, RtpSession.DefaultNetworkTimeout);
}
else
{
// multicast or direct unicast: no reflector needed
rtpNetworkListener = new UdpListener(nextHopEP, RtpSession.DefaultNetworkTimeout);
}
}
public void RemoveListener(INetworkListener l)
{
for (int i = 0; i < networkListeners.Count; i++)
{
INetworkListener nl = networkListeners[i].Target as INetworkListener;
if (nl != l)
{
continue;
}
networkListeners.RemoveAt(i);
i--;
}
}
public void AddListener(INetworkListener listener, bool start)
{
if (this.Disposed)
{
throw new ObjectDisposedException(nameof(NetworkManager));
}
this.NetworkListeners.Add(listener);
NetworkManager.Logger.Info($"Listener binded on {listener.Bind} was added");
if (start)
{
listener.StartListening();
}
}
public void Update()
{
//process received messages
{
List <DataPackage> received = null;
lock (receiveBuffer)
{
received = new List <DataPackage>(receiveBuffer);
receiveBuffer.Clear();
}
for (int i = 0; i < networkListeners.Count; i++)
{
INetworkListener nl = networkListeners[i].Target as INetworkListener;
if (nl == null)
{
networkListeners.RemoveAt(i);
i--;
}
else
{
foreach (DataPackage dp in received)
{
nl.OnDataReceived(dp);
}
}
}
}
if (!hasToken)
{
return;
}
while (queue.Count != 0)
{
DataPackage dp = queue[0];
queue.RemoveAt(0);
WriteAll(dp);
}
hasToken = false;
Write(nextClient, new TokenChangePackage());
}
private void Initialize()
{
if (Utility.IsMulticast(groupEP) && (!nextHopEP.Equals(groupEP)))
{
// use reflector
rtcpNetworkListener = new UdpListener(groupEP, nextHopEP, RtpSession.DefaultNetworkTimeout * 2);
}
else
{
// multicast or direct unicast
rtcpNetworkListener = new UdpListener(nextHopEP, RtpSession.DefaultNetworkTimeout * 2);
}
threadRtcpListener = new Thread(new ThreadStart(ListenThread));
threadRtcpListener.IsBackground = true;
threadRtcpListener.Name = "RtcpListener";
threadRtcpListener.Start();
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="listener"></param>
/// <param name="factory"></param>
/// <param name="logger"></param>
/// <param name="globalMeta"></param>
/// <param name="proxyServer"></param>
/// <param name="proxyClient"></param>
/// <param name="filters"></param>
/// <param name="defaultTimeout"></param>
/// <param name="afterdata"></param>
public ProxyNetworkService(INetworkListener listener, NetGraphFactory factory, Logger logger,
MetaDictionary globalMeta,
ProxyServer proxyServer, ProxyClient proxyClient, ProxyFilter[] filters, int defaultTimeout, bool afterdata)
{
_packetLog = new List <LogPacket>(1000);
_logger = logger;
Listener = listener;
_factory = factory;
_connections = new List <ConnectionEntry>();
_globalMeta = globalMeta;
_history = new List <ConnectionHistoryEntry>();
_subServices = new List <ProxyNetworkService>();
DefaultBinding = NetworkLayerBinding.Default;
_proxyClient = proxyClient;
_proxyServer = proxyServer;
_filters = filters;
_defaultTimeout = defaultTimeout;
_afterData = afterdata;
}
public virtual async ValueTask BindAsync(EndPoint endpoint, CancellationToken cancellationToken = default)
{
_endpoint = endpoint;
_logger.BindListenSocket(_endpoint);
_listener = _networkProvider.CreateListener(new NetworkListenerSettings
{
EndPoint = _endpoint,
AllowNatTraversal = _options.AllowNatTraversal,
ExclusiveAddressUse = _options.ExclusiveAddressUse,
ListenerBacklog = _options.ListenBacklog,
NoDelay = _options.NoDelay,
});
// the only way to cancel a call to accept a socket is to stop the listener.
// this is okay, because this call is cancelled only when the listener is about to be
// unbound and disposed anyway.
_listenerCancellationCallback = _listener.Stop;
_listener.Start();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="packetLog"></param>
/// <param name="listener"></param>
/// <param name="factory"></param>
/// <param name="logger"></param>
/// <param name="globalMeta"></param>
/// <param name="history"></param>
/// <param name="credentials"></param>
/// <param name="proxyServer"></param>
/// <param name="proxyClient"></param>
/// <param name="filters"></param>
/// <param name="defaultTimeout"></param>
/// <param name="afterdata"></param>
public ProxyNetworkService(IList <LogPacket> packetLog, INetworkListener listener, NetGraphFactory factory, Logger logger,
MetaDictionary globalMeta, IList <ConnectionHistoryEntry> history, IDictionary <SecurityPrincipal, ICredentialObject> credentials,
ProxyServer proxyServer, ProxyClient proxyClient, ProxyFilter[] filters, int defaultTimeout, bool afterdata)
{
_packetLog = packetLog;
_logger = logger;
Listener = listener;
_factory = factory;
_connections = new List <ConnectionEntry>();
_globalMeta = globalMeta;
_history = history;
_subServices = new List <ProxyNetworkService>();
DefaultBinding = NetworkLayerBinding.Default;
_credentials = new Dictionary <SecurityPrincipal, ICredentialObject>(credentials);
_credentialManager = new CredentialsManagerService();
_credentialManager.ResolveCredentials += _credentialManager_ResolveCredentials;
_proxyClient = proxyClient;
_proxyServer = proxyServer;
_filters = filters;
_defaultTimeout = defaultTimeout;
_afterData = afterdata;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="left">The left listener</param>
/// <param name="right">The right listener</param>
public AggregateNetworkListener(INetworkListener left, INetworkListener right)
{
_left = left;
_right = right;
}
/// <summary>
/// Clean up the RtcpListener
///
/// A thread will not abort until it is in the running state. Our listening thread is
/// generally blocked by the call to rtcpNetworkListener.ReceiveFrom(). In order to
/// dispose things quickly and efficiently, we tell the listening thread to abort as soon
/// as it is back in the running state. Then we clean up the network listener which should
/// unblock us.
/// </summary>
/// <param name="disposing"></param>
private void Dispose(bool disposing)
{
lock(this)
{
disposed = true;
threadRtcpListener.Abort();
threadRtcpListener = null;
rtcpNetworkListener.Dispose();
rtcpNetworkListener = null;
}
}
private void Initialize()
{
rtcpNetworkListener = new UdpListener(rtpSession.RtcpEndPoint, RtpSession.DefaultNetworkTimeout * 2);
threadRtcpListener = new Thread(new ThreadStart(ListenThread));
threadRtcpListener.IsBackground = true;
threadRtcpListener.Name = "RtcpListener";
threadRtcpListener.Start();
}
public SocketServer(MessageRegistry registry)
{
listener = new SocketListener();
this.registry = registry;
}
private void Initialize()
{
if (Utility.IsMulticast(groupEP) && (!nextHopEP.Equals(groupEP)))
{
// use reflector
rtcpNetworkListener = new UdpListener(groupEP, nextHopEP, RtpSession.DefaultNetworkTimeout * 2);
}
else
{
// multicast or direct unicast
rtcpNetworkListener = new UdpListener(nextHopEP, RtpSession.DefaultNetworkTimeout * 2);
}
threadRtcpListener = new Thread(new ThreadStart(ListenThread));
threadRtcpListener.IsBackground = true;
threadRtcpListener.Name = "RtcpListener";
threadRtcpListener.Start();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="left">The left listener</param>
/// <param name="right">The right listener</param>
public AggregateNetworkListener(INetworkListener left, INetworkListener right)
{
_left = left;
_right = right;
}
private void DisposeNetwork()
{
rtpNetworkListener.Dispose();
rtpNetworkListener = null;
}
public void RemoveListener(INetworkListener l)
{
for (int i = 0; i < networkListeners.Count; i++)
{
INetworkListener nl = networkListeners[i].Target as INetworkListener;
if (nl != l)
continue;
networkListeners.RemoveAt(i);
i--;
}
}
public void AddListener(INetworkListener l)
{
networkListeners.Add(new WeakReference(l));
}
private void InitializeNetwork()
{
rtpNetworkListener = new UdpListener(rtpSession.RtpEndPoint, RtpSession.DefaultNetworkTimeout);
}
/// <summary>
/// Create the base service
/// </summary>
/// <param name="logger">The logger to use</param>
/// <returns>The new network service</returns>
public override ProxyNetworkService Create(Logger logger)
{
ProxyNetworkService ret = null;
if (logger == null)
{
logger = Logger.SystemLogger;
}
if ((LocalPort < 0) || (LocalPort > 65535))
{
throw new NetServiceException(Properties.Resources.NetServerDocument_ValidPort);
}
else if (ServerFactory == null)
{
throw new NetServiceException(Properties.Resources.NetServerDocument_MustSpecifyServer);
}
else
{
try
{
ProxyServer server = new PassThroughProxyServer(logger, Layers);
ProxyClient client = new NetServerProxyClient(ServerFactory);
INetworkListener listener = null;
if (!UdpEnable)
{
if (NetUtils.OSSupportsIPv4)
{
listener = new TcpNetworkListener(AnyBind, false, LocalPort, logger, false);
}
if (Ipv6Bind && NetUtils.OSSupportsIPv6)
{
INetworkListener ipv6Listener = new TcpNetworkListener(AnyBind, true, LocalPort, logger, false);
if (listener != null)
{
listener = new AggregateNetworkListener(listener, ipv6Listener);
}
else
{
listener = ipv6Listener;
}
}
}
else
{
if (NetUtils.OSSupportsIPv4)
{
listener = new UdpNetworkListener(AnyBind, false, LocalPort, EnableBroadcast, logger);
}
if (Ipv6Bind && NetUtils.OSSupportsIPv6)
{
INetworkListener ipv6Listener = new UdpNetworkListener(AnyBind, true, LocalPort, EnableBroadcast, logger);
if (listener != null)
{
listener = new AggregateNetworkListener(listener, ipv6Listener);
}
else
{
listener = ipv6Listener;
}
}
}
if (listener == null)
{
throw new NetServiceException(Properties.Resources.NetServiceDocument_CannotSetupListener);
}
ret = new ProxyNetworkService(listener,
Graph ?? BuildDefaultProxyFactory(), logger, _globalMeta,
server, client, null, Timeout.Infinite, false);
ret.DefaultBinding = NetworkLayerBinding.Server;
}
catch (SocketException ex)
{
throw new NetServiceException(Properties.Resources.NetServerDocument_ErrorCreatingServer, ex);
}
catch (IOException ex)
{
throw new NetServiceException(Properties.Resources.NetServerDocument_ErrorCreatingServer, ex);
}
return(ret);
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="packetLog"></param>
/// <param name="listener"></param>
/// <param name="factory"></param>
/// <param name="logger"></param>
/// <param name="globalMeta"></param>
/// <param name="history"></param>
/// <param name="credentials"></param>
/// <param name="proxyServer"></param>
/// <param name="proxyClient"></param>
/// <param name="filters"></param>
/// <param name="defaultTimeout"></param>
/// <param name="afterdata"></param>
public ProxyNetworkService(IList<LogPacket> packetLog, INetworkListener listener, NetGraphFactory factory, Logger logger,
MetaDictionary globalMeta, IList<ConnectionHistoryEntry> history, IDictionary<SecurityPrincipal, ICredentialObject> credentials,
ProxyServer proxyServer, ProxyClient proxyClient, ProxyFilter[] filters, int defaultTimeout, bool afterdata)
{
_packetLog = packetLog;
_logger = logger;
Listener = listener;
_factory = factory;
_connections = new List<ConnectionEntry>();
_globalMeta = globalMeta;
_history = history;
_subServices = new List<ProxyNetworkService>();
DefaultBinding = NetworkLayerBinding.Default;
_credentials = new Dictionary<SecurityPrincipal, ICredentialObject>(credentials);
_credentialManager = new CredentialsManagerService();
_credentialManager.ResolveCredentials += _credentialManager_ResolveCredentials;
_proxyClient = proxyClient;
_proxyServer = proxyServer;
_filters = filters;
_defaultTimeout = defaultTimeout;
_afterData = afterdata;
}
public virtual void Dispose()
{
_listener?.Dispose();
_listener = null;
_listenerCancellationCallback = null;
}
private void DisposeNetwork()
{
rtpNetworkListener.Dispose();
rtpNetworkListener = null;
}
private void InitializeNetwork()
{
rtpNetworkListener = new UdpListener(rtpSession.RtpEndPoint, RtpSession.DefaultNetworkTimeout);
}
public SocketServer(IPAddress address, MessageRegistry registry)
{
listener = new SocketListener(address);
this.registry = registry;
}
private static void AddListener(List<string> builder, INetworkListener listener)
{
if (listener is AggregateNetworkListener)
{
AddAggregateListener(builder, (AggregateNetworkListener)listener);
}
else
{
builder.Add(listener.ToString());
}
}
public SocketServer(IPAddress address, MessageRegistry registry)
{
listener = new SocketListener(address);
this.registry = registry;
}
public void AddListener(INetworkListener l)
{
networkListeners.Add(new WeakReference(l));
}
public SocketServer(MessageRegistry registry)
{
listener = new SocketListener();
this.registry = registry;
}
public void SetListener(INetworkListener l)
{
_listener = l;
_responceListener = l;
_connectionListener = l;
}
private void InitializeNetwork()
{
if (Utility.IsMulticast(groupEP) && (!nextHopEP.Equals(groupEP)))
{
// reflector based session
rtpNetworkListener = new UdpListener(groupEP, nextHopEP, RtpSession.DefaultNetworkTimeout);
}
else
{
// multicast or direct unicast: no reflector needed
rtpNetworkListener = new UdpListener(nextHopEP, RtpSession.DefaultNetworkTimeout);
}
}