Esempio n. 1
0
 public static void Handle(IPAddress localAddress, UpnpDeviceInfo deviceInfo, IPEndPoint endpoint, NatProtocol protocol)
 {
     switch (protocol)
     {
         case NatProtocol.Upnp:
             UpnpSearcher.Instance.Handle(localAddress, deviceInfo, endpoint);
             break;
         default:
             throw new ArgumentException("Unexpected protocol: " + protocol);
     }
 }
Esempio n. 2
0
        public void Handle(IPAddress localAddress, UpnpDeviceInfo deviceInfo, IPEndPoint endpoint)
        {
            // No matter what, this method should never throw an exception. If something goes wrong
            // we should still be in a position to handle the next reply correctly.
            try
            {
                /* For UPnP Port Mapping we need ot find either WANPPPConnection or WANIPConnection. 
				 Any other device type is no good to us for this purpose. See the IGP overview paper 
				 page 5 for an overview of device types and their hierarchy.
				 http://upnp.org/specs/gw/UPnP-gw-InternetGatewayDevice-v1-Device.pdf */

                /* TODO: Currently we are assuming version 1 of the protocol. We should figure out which
				 version it is and apply the correct URN. */

                /* Some routers don't correctly implement the version ID on the URN, so we only search for the type
				 prefix. */

                // We have an internet gateway device now
                UpnpNatDevice d = new UpnpNatDevice(localAddress, deviceInfo, endpoint, string.Empty);

                if (devices.Contains(d))
                {
                    // We already have found this device, so we just refresh it to let people know it's
                    // Still alive. If a device doesn't respond to a search, we dump it.
                    devices[devices.IndexOf(d)].LastSeen = DateTime.Now;
                }
                else
                {

                    // If we send 3 requests at a time, ensure we only fetch the services list once
                    // even if three responses are received
                    if (lastFetched.ContainsKey(endpoint.Address))
                    {
                        DateTime last = lastFetched[endpoint.Address];
                        if ((DateTime.Now - last) < TimeSpan.FromSeconds(20))
                            return;
                    }
                    lastFetched[endpoint.Address] = DateTime.Now;

                    // Once we've parsed the information we need, we tell the device to retrieve it's service list
                    // Once we successfully receive the service list, the callback provided will be invoked.
                    NatUtility.Log("Fetching service list: {0}", d.HostEndPoint);
                    d.GetServicesList(DeviceSetupComplete);
                }
            }
            catch (Exception ex)
            {
                NatUtility.Log("Unhandled exception when trying to decode a device's response Send me the following data: ");
                NatUtility.Log("ErrorMessage:");
                NatUtility.Log(ex.Message);
            }
        }