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//
// Authors:
// Nicholas Terry <nick.i.terry@gmail.com>
//
// Copyright (C) 2014 Nicholas Terry
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
namespace Mono.Nat.Upnp.Mappers
{
internal class UpnpMapper : Upnp, IMapper
{
public event EventHandler<DeviceEventArgs> DeviceFound;
public UdpClient Client { get; set; }
public UpnpMapper()
{
//Bind to local port 1900 for ssdp responses
Client = new UdpClient(1900);
}
public void Map(IPAddress gatewayAddress)
{
//Get the httpu request payload
byte[] data = DiscoverDeviceMessage.EncodeUnicast(gatewayAddress);
Client.Send(data, data.Length, new IPEndPoint(gatewayAddress, 1900));
new Thread(Receive).Start();
}
public void Receive()
{
while (true)
{
IPEndPoint received = new IPEndPoint(IPAddress.Parse("192.168.0.1"), 5351);
if (Client.Available > 0)
{
IPAddress localAddress = ((IPEndPoint)Client.Client.LocalEndPoint).Address;
byte[] data = Client.Receive(ref received);
Handle(localAddress, data, received);
}
}
}
public void Handle(IPAddress localAddres, byte[] response)
{
Handle(localAddres, response, null);
}
public void Handle(IPAddress localAddress, byte[] response, 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
{
UpnpNatDevice d = base.Handle(localAddress, response, endpoint);
d.GetServicesList(DeviceSetupComplete);
}
catch (Exception ex)
{
Trace.WriteLine("Unhandled exception when trying to decode a device's response Send me the following data: ");
Trace.WriteLine("ErrorMessage:");
Trace.WriteLine(ex.Message);
Trace.WriteLine("Data string:");
Trace.WriteLine(Encoding.UTF8.GetString(response));
}
}
private void DeviceSetupComplete(INatDevice device)
{
OnDeviceFound(new DeviceEventArgs(device));
}
private void OnDeviceFound(DeviceEventArgs args)
{
if (DeviceFound != null)
DeviceFound(this, args);
}
}
}
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