/// <summary>
/// <see cref="IDisposable.Dispose"/>
/// </summary>
public void Dispose()
{
this.State = PeerToPeerNetworkState.Closed;
if (this.tcpListener != 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 != null)
{
this.upnpClient.Dispose();
this.upnpClient = null;
}
if (this.ipAddressesFound != null)
{
this.ipAddressesFound.Clear();
this.ipAddressesFound = null;
}
if (this.ready != null)
{
this.ready.Close();
this.ready = null;
}
if (this.error != 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>();
string NewExternalIPAddress;
ushort PortMappingIndex;
string NewRemoteHost;
ushort NewExternalPort;
string NewProtocol;
ushort NewInternalPort;
string NewInternalClient;
bool NewEnabled;
string NewPortMappingDescription;
uint NewLeaseDuration;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(e.ServiceDescriptionDocument);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
PortMappingIndex = 0;
try
{
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out NewRemoteHost,
out NewExternalPort, out NewProtocol, out NewInternalPort, out NewInternalClient,
out NewEnabled, out NewPortMappingDescription, out 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 == 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;
}
}