/// <summary>
/// Fetches a UPnP device from the network
/// </summary>
/// <returns></returns>
private static async Task <Open.Nat.NatDevice> GetUPnPDevice()
{
var discoverer = new Open.Nat.NatDiscoverer();
return(await discoverer.DiscoverDeviceAsync(Open.Nat.PortMapper.Upnp, CancellationTokenSource));
}
public P2PClient(string pubNubPubKey, string pubNubSubKey)
{
connectedPeers = new Dictionary <string, P2PPeer>();
uniqueIdsPubNubSeen = new HashSet <string>();
localIp = GetLocalIPAddress();
externalIp = GetExternalIp();
/*
* var discoverer = new NatDiscoverer();
* var device = discoverer.DiscoverDeviceAsync().Result;
*
* var ip = device.GetExternalIPAsync().Result;
* Debug.Log("The external IP Address is: " + ip);
*/
var discoverer = new Open.Nat.NatDiscoverer();
var device = discoverer.DiscoverDeviceAsync().Result;
IPAddress localAddr = IPAddress.Parse(localIp);
int workingPort = -1;
for (int i = 0; i < ports.Length; i++)
{
try
{
// Test tcp with nc -vz externalip 5293 in linux
//tempServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Test udp with nc -vz -u externalip 5293 in linux
Socket tempServer = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
tempServer.Bind(new IPEndPoint(localAddr, ports[i]));
tempServer.Close();
workingPort = ports[i];
break;
}
catch
{
}
}
if (workingPort == -1)
{
throw new Exception("Failed to connect to a port");
}
localPort = workingPort;
externalPort = workingPort;
// Mapping ports
device.CreatePortMapAsync(new Open.Nat.Mapping(Open.Nat.Protocol.Udp, localPort, externalPort));
Socket tempServera;
IPAddress localAddra = IPAddress.Parse(localIp);
try
{
// Test tcp with nc -vz externalip 5293 in linux
//tempServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
// Test udp with nc -vz -u externalip 5293 in linux
tempServera = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
tempServera.Bind(new IPEndPoint(localAddra, localPort));
server = tempServera;
if (stopped)
{
server.Close();
server = null;
}
}
catch
{
server = null;
}
if (server == null)
{
throw new Exception("failed: " + localPort + " " + externalPort);
}
udpClient = new UdpClient(localPort);
pubnub = new Pubnub(pubNubPubKey, pubNubSubKey);
pubnub.Subscribe <string>(
channelName,
OnPubNubMessage,
OnPubNubConnect,
OnPubNubError);
Debug.Log("Initialized P2P Client");
}
