/// <summary>
/// <see cref="IDisposable.Dispose"/>
/// </summary>
public void Dispose()
{
this.disposed = true;
this.State = PeerToPeerNetworkState.Closed;
NetworkChange.NetworkAddressChanged -= NetworkChange_NetworkAddressChanged;
this.searchTimer?.Dispose();
this.searchTimer = null;
this.tcpListener?.Stop();
this.tcpListener = null;
if (this.tcpMappingAdded)
{
this.tcpMappingAdded = false;
try
{
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, (ushort)this.localEndpoint.Port, "TCP");
}
catch (Exception)
{
// Ignore
}
}
if (this.udpMappingAdded)
{
this.udpMappingAdded = false;
try
{
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, (ushort)this.localEndpoint.Port, "UDP");
}
catch (Exception)
{
// Ignore
}
}
this.serviceWANIPConnectionV1 = null;
this.upnpClient?.Dispose();
this.upnpClient = null;
this.ipAddressesFound?.Clear();
this.ipAddressesFound = null;
this.ready?.Dispose();
this.ready = null;
this.error?.Dispose();
this.error = null;
}
private void ServiceRetrieved(ServiceDescriptionDocument Scpd, IPEndPoint LocalEndPoint)
{
try
{
Dictionary <ushort, bool> TcpPortMapped = new Dictionary <ushort, bool>();
Dictionary <ushort, bool> UdpPortMapped = new Dictionary <ushort, bool>();
ushort PortMappingIndex;
bool TcpAlreadyRegistered = false;
bool UdpAlreadyRegistered = false;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(Scpd);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out string NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
if (!IsPublicAddress(this.externalAddress))
{
return; // TODO: Handle multiple layers of gateways.
}
PortMappingIndex = 0;
try
{
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out string NewRemoteHost,
out ushort NewExternalPort, out string NewProtocol, out ushort NewInternalPort, out string NewInternalClient,
out bool NewEnabled, out string NewPortMappingDescription, out uint NewLeaseDuration);
if (NewPortMappingDescription == this.applicationName && NewInternalClient == LocalEndPoint.Address.ToString())
{
if (NewExternalPort == this.desiredExternalPort && this.desiredExternalPort != 0)
{
if (NewProtocol == "TCP")
{
TcpAlreadyRegistered = true;
PortMappingIndex++;
continue;
}
else if (NewProtocol == "UDP")
{
UdpAlreadyRegistered = true;
PortMappingIndex++;
continue;
}
}
this.serviceWANIPConnectionV1.DeletePortMapping(NewRemoteHost, NewExternalPort, NewProtocol);
}
else
{
switch (NewProtocol)
{
case "TCP":
TcpPortMapped[NewExternalPort] = true;
break;
case "UDP":
UdpPortMapped[NewExternalPort] = true;
break;
}
PortMappingIndex++;
}
}
}
catch (AggregateException ex)
{
if (!(ex.InnerException is UPnPException))
{
throw;
}
}
catch (UPnPException)
{
// No more entries.
}
this.localAddress = LocalEndPoint.Address;
ushort LocalPort, ExternalPort;
int i;
do
{
this.tcpListener = new TcpListener(this.localAddress, this.desiredLocalPort);
this.tcpListener.Start(this.backlog);
i = ((IPEndPoint)this.tcpListener.LocalEndpoint).Port;
LocalPort = (ushort)(i);
ExternalPort = this.desiredExternalPort == 0 ? LocalPort : (ushort)this.desiredExternalPort;
if (i < 0 || i > ushort.MaxValue || TcpPortMapped.ContainsKey(ExternalPort) || UdpPortMapped.ContainsKey(ExternalPort))
{
this.tcpListener.Stop();
this.tcpListener = null;
throw new ArgumentException("Port already assigned to another application in the network.", nameof(ExternalPort));
}
else
{
try
{
this.udpClient = new UdpClient(this.tcpListener.LocalEndpoint.AddressFamily);
this.udpClient.Client.Bind((IPEndPoint)this.tcpListener.LocalEndpoint);
}
catch (Exception)
{
this.tcpListener.Stop();
this.tcpListener = null;
}
}
}while (this.tcpListener == null);
this.localEndpoint = new IPEndPoint(this.localAddress, LocalPort);
if (!TcpAlreadyRegistered)
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, ExternalPort,
"TCP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
}
this.tcpMappingAdded = true;
if (!UdpAlreadyRegistered)
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, ExternalPort,
"UDP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
}
this.udpMappingAdded = true;
this.externalEndpoint = new IPEndPoint(this.externalAddress, ExternalPort);
this.State = PeerToPeerNetworkState.Ready;
this.AcceptTcpClients();
this.BeginReceiveUdp();
}
catch (Exception ex)
{
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}
/// <summary>
/// <see cref="IDisposable.Dispose"/>
/// </summary>
public virtual void Dispose()
{
this.disposed = true;
this.State = PeerToPeerNetworkState.Closed;
NetworkChange.NetworkAddressChanged -= NetworkChange_NetworkAddressChanged;
this.searchTimer?.Dispose();
this.searchTimer = null;
foreach (InternetGatewayRegistration Registration in this.ports)
{
if (Registration.TcpRegistered)
{
Registration.TcpRegistered = false;
try
{
Log.Notice("Deleting Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "TCP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, Registration.LocalPort, "TCP");
}
catch (Exception)
{
// Ignore
}
}
if (Registration.UdpRegistered)
{
Registration.UdpRegistered = false;
try
{
Log.Notice("Deleting Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "UDP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, Registration.LocalPort, "UDP");
}
catch (Exception)
{
// Ignore
}
}
}
this.serviceWANIPConnectionV1 = null;
this.upnpClient?.Dispose();
this.upnpClient = null;
this.ipAddressesFound?.Clear();
this.ipAddressesFound = null;
this.ready?.Dispose();
this.ready = null;
this.error?.Dispose();
this.error = null;
}
private void ServiceRetrieved(ServiceDescriptionDocument Scpd, IPEndPoint LocalEndPoint)
{
try
{
Dictionary <ushort, bool> TcpPortMapped = new Dictionary <ushort, bool>();
Dictionary <ushort, bool> UdpPortMapped = new Dictionary <ushort, bool>();
ushort PortMappingIndex;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(Scpd);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out string NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
Log.Informational("External IP Address: " + NewExternalIPAddress);
if (!IsPublicAddress(this.externalAddress))
{
Log.Warning("External IP Address not a public IP address.");
return; // TODO: Handle multiple layers of gateways.
}
PortMappingIndex = 0;
try
{
string LocalAddress = LocalEndPoint.Address.ToString();
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out string NewRemoteHost,
out ushort NewExternalPort, out string NewProtocol, out ushort NewInternalPort, out string NewInternalClient,
out bool NewEnabled, out string NewPortMappingDescription, out uint NewLeaseDuration);
if (NewInternalClient != LocalAddress)
{
PortMappingIndex++;
continue;
}
bool Found = false;
foreach (InternetGatewayRegistration Registration in this.ports)
{
if ((Registration.ExternalPort != 0 && NewExternalPort == Registration.ExternalPort) ||
(Registration.ExternalPort == 0 && NewPortMappingDescription == Registration.ApplicationName))
{
if (NewProtocol == "TCP")
{
Found = true;
Registration.TcpRegistered = true;
break;
}
else if (NewProtocol == "UDP")
{
Found = true;
Registration.UdpRegistered = true;
break;
}
Log.Notice("Deleting Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", NewRemoteHost),
new KeyValuePair <string, object>("External Port", NewExternalPort),
new KeyValuePair <string, object>("Protocol", NewProtocol),
new KeyValuePair <string, object>("Local Port", NewInternalPort),
new KeyValuePair <string, object>("Local Address", NewInternalClient),
new KeyValuePair <string, object>("Application", NewPortMappingDescription));
this.serviceWANIPConnectionV1.DeletePortMapping(NewRemoteHost, NewExternalPort, NewProtocol);
}
}
if (Found)
{
PortMappingIndex++;
continue;
}
else
{
switch (NewProtocol)
{
case "TCP":
TcpPortMapped[NewExternalPort] = true;
break;
case "UDP":
UdpPortMapped[NewExternalPort] = true;
break;
}
PortMappingIndex++;
}
}
}
catch (AggregateException ex)
{
if (!(ex.InnerException is UPnPException))
{
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Capture(ex).Throw();
}
}
catch (UPnPException)
{
// No more entries.
}
this.localAddress = LocalEndPoint.Address;
foreach (InternetGatewayRegistration Registration in this.ports)
{
this.BeforeRegistration(Registration, TcpPortMapped, UdpPortMapped);
if ((Registration.TcpRegistered || !Registration.Tcp) &&
(Registration.UdpRegistered || !Registration.Udp))
{
continue;
}
if (Registration.Tcp && !Registration.TcpRegistered)
{
Log.Notice("Adding Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "TCP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
try
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, Registration.ExternalPort,
"TCP", Registration.LocalPort, LocalAddress.ToString(), true, Registration.ApplicationName, 0);
Registration.TcpRegistered = true;
}
catch (Exception ex)
{
Log.Error("Unable to register port in Internet Gateway: " + ex.Message,
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "TCP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
}
}
if (Registration.Udp && !Registration.UdpRegistered)
{
Log.Notice("Adding Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "UDP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
try
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, Registration.ExternalPort,
"UDP", Registration.LocalPort, LocalAddress.ToString(), true, Registration.ApplicationName, 0);
Registration.UdpRegistered = true;
}
catch (Exception ex)
{
Log.Error("Unable to register port in Internet Gateway: " + ex.Message,
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "UDP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
}
}
}
this.State = PeerToPeerNetworkState.Ready;
}
catch (Exception ex)
{
Log.Critical(ex);
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}
/// <summary>
/// <see cref="IDisposable.Dispose"/>
/// </summary>
public void Dispose()
{
this.State = PeerToPeerNetworkState.Closed;
if (!(this.tcpListener is null))
{
this.tcpListener.Stop();
this.tcpListener = null;
}
if (this.tcpMappingAdded)
{
this.tcpMappingAdded = false;
try
{
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, (ushort)this.localEndpoint.Port, "TCP");
}
catch (Exception)
{
// Ignore
}
}
if (this.udpMappingAdded)
{
this.udpMappingAdded = false;
try
{
this.serviceWANIPConnectionV1.DeletePortMapping(string.Empty, (ushort)this.localEndpoint.Port, "UDP");
}
catch (Exception)
{
// Ignore
}
}
this.serviceWANIPConnectionV1 = null;
if (!(this.upnpClient is null))
{
this.upnpClient.Dispose();
this.upnpClient = null;
}
if (!(this.ipAddressesFound is null))
{
this.ipAddressesFound.Clear();
this.ipAddressesFound = null;
}
if (!(this.ready is null))
{
this.ready.Close();
this.ready = null;
}
if (!(this.error is null))
{
this.error.Close();
this.error = null;
}
}
private void ServiceRetrieved(object Sender, ServiceDescriptionEventArgs e)
{
try
{
DeviceLocationEventArgs e2 = (DeviceLocationEventArgs)e.State;
Dictionary <ushort, bool> TcpPortMapped = new Dictionary <ushort, bool>();
Dictionary <ushort, bool> UdpPortMapped = new Dictionary <ushort, bool>();
ushort PortMappingIndex;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(e.ServiceDescriptionDocument);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out string NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
PortMappingIndex = 0;
try
{
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out string NewRemoteHost,
out ushort NewExternalPort, out string NewProtocol, out ushort NewInternalPort, out string NewInternalClient,
out bool NewEnabled, out string NewPortMappingDescription, out uint NewLeaseDuration);
if (NewPortMappingDescription == this.applicationName && NewInternalClient == e2.LocalEndPoint.Address.ToString())
{
this.serviceWANIPConnectionV1.DeletePortMapping(NewRemoteHost, NewExternalPort, NewProtocol);
}
else
{
switch (NewProtocol)
{
case "TCP":
TcpPortMapped[NewExternalPort] = true;
break;
case "UDP":
UdpPortMapped[NewExternalPort] = true;
break;
}
PortMappingIndex++;
}
}
}
catch (UPnPException)
{
// No more entries.
}
this.localAddress = e2.LocalEndPoint.Address;
ushort LocalPort;
int i;
do
{
this.tcpListener = new TcpListener(this.localAddress, this.desiredPort);
this.tcpListener.Start(this.backlog);
i = ((IPEndPoint)this.tcpListener.LocalEndpoint).Port;
LocalPort = (ushort)(i);
if (i < 0 || i > ushort.MaxValue || TcpPortMapped.ContainsKey(LocalPort) || UdpPortMapped.ContainsKey(LocalPort))
{
this.tcpListener.Stop();
this.tcpListener = null;
if (this.desiredPort != 0)
{
throw new ArgumentException("Port already assigned to another application in the network.", "Port");
}
}
else
{
try
{
this.udpClient = new UdpClient(this.tcpListener.LocalEndpoint.AddressFamily);
this.udpClient.Client.Bind((IPEndPoint)this.tcpListener.LocalEndpoint);
}
catch (Exception)
{
this.tcpListener.Stop();
this.tcpListener = null;
}
}
}while (this.tcpListener is null);
this.localEndpoint = new IPEndPoint(this.localAddress, LocalPort);
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, LocalPort, "TCP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
this.tcpMappingAdded = true;
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, LocalPort, "UDP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
this.udpMappingAdded = true;
this.externalEndpoint = new IPEndPoint(this.externalAddress, LocalPort);
this.State = PeerToPeerNetworkState.Ready;
this.tcpListener.BeginAcceptTcpClient(this.EndAcceptTcpClient, null);
this.udpClient.BeginReceive(this.EndReceiveUdp, null);
}
catch (Exception ex)
{
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}