extracted http server, web socket server and udp server dependancies

MediaBrowser.Networking/Udp/UdpServer.cs

@@ -0,0 +1,167 @@
+using MediaBrowser.Common.Net;
+using MediaBrowser.Networking.Management;
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Reactive.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Networking.Udp
+{
+    /// <summary>
+    /// Provides a Udp Server
+    /// </summary>
+    public class UdpServer : IUdpServer
+    {
+        /// <summary>
+        /// Occurs when [message received].
+        /// </summary>
+        public event EventHandler<UdpMessageReceivedEventArgs> MessageReceived;
+
+        /// <summary>
+        /// Raises the <see cref="E:MessageReceived" /> event.
+        /// </summary>
+        /// <param name="e">The <see cref="UdpMessageReceivedEventArgs" /> instance containing the event data.</param>
+        protected virtual void OnMessageReceived(UdpMessageReceivedEventArgs e)
+        {
+            EventHandler<UdpMessageReceivedEventArgs> handler = MessageReceived;
+            if (handler != null) handler(this, e);
+        }
+
+        /// <summary>
+        /// The _udp client
+        /// </summary>
+        private UdpClient _udpClient;
+
+        /// <summary>
+        /// Starts the specified port.
+        /// </summary>
+        /// <param name="port">The port.</param>
+        public void Start(int port)
+        {
+            _udpClient = new UdpClient(new IPEndPoint(IPAddress.Any, port));
+
+            _udpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
+
+            CreateObservable().Subscribe(OnMessageReceived);
+        }
+
+        /// <summary>
+        /// Creates the observable.
+        /// </summary>
+        /// <returns>IObservable{UdpReceiveResult}.</returns>
+        private IObservable<UdpReceiveResult> CreateObservable()
+        {
+            return Observable.Create<UdpReceiveResult>(obs =>
+                                Observable.FromAsync(() => _udpClient.ReceiveAsync())
+                                          .Subscribe(obs))
+                             .Repeat()
+                             .Retry()
+                             .Publish()
+                             .RefCount();
+        }
+
+        /// <summary>
+        /// Called when [message received].
+        /// </summary>
+        /// <param name="message">The message.</param>
+        private void OnMessageReceived(UdpReceiveResult message)
+        {
+            var bytes = message.Buffer;
+
+            OnMessageReceived(new UdpMessageReceivedEventArgs
+            {
+                Bytes = bytes,
+                RemoteEndPoint = message.RemoteEndPoint.ToString()
+            });
+        }
+
+        /// <summary>
+        /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
+        /// </summary>
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        /// <summary>
+        /// Stops this instance.
+        /// </summary>
+        public void Stop()
+        {
+            _udpClient.Close();
+        }
+
+        /// <summary>
+        /// Releases unmanaged and - optionally - managed resources.
+        /// </summary>
+        /// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
+        protected virtual void Dispose(bool dispose)
+        {
+            if (dispose)
+            {
+                Stop();
+            }
+        }
+
+        /// <summary>
+        /// Sends the async.
+        /// </summary>
+        /// <param name="data">The data.</param>
+        /// <param name="ipAddress">The ip address.</param>
+        /// <param name="port">The port.</param>
+        /// <returns>Task{System.Int32}.</returns>
+        /// <exception cref="System.ArgumentNullException">data</exception>
+        public Task SendAsync(string data, string ipAddress, int port)
+        {
+            return SendAsync(Encoding.UTF8.GetBytes(data), ipAddress, port);
+        }
+
+        /// <summary>
+        /// Sends the async.
+        /// </summary>
+        /// <param name="bytes">The bytes.</param>
+        /// <param name="ipAddress">The ip address.</param>
+        /// <param name="port">The port.</param>
+        /// <returns>Task{System.Int32}.</returns>
+        /// <exception cref="System.ArgumentNullException">bytes</exception>
+        public Task SendAsync(byte[] bytes, string ipAddress, int port)
+        {
+            if (bytes == null)
+            {
+                throw new ArgumentNullException("bytes");
+            }
+
+            if (string.IsNullOrEmpty(ipAddress))
+            {
+                throw new ArgumentNullException("ipAddress");
+            }
+
+            return _udpClient.SendAsync(bytes, bytes.Length, ipAddress, port);
+        }
+
+        /// <summary>
+        /// Sends the async.
+        /// </summary>
+        /// <param name="bytes">The bytes.</param>
+        /// <param name="remoteEndPoint">The remote end point.</param>
+        /// <returns>Task.</returns>
+        public Task SendAsync(byte[] bytes, string remoteEndPoint)
+        {
+            if (bytes == null)
+            {
+                throw new ArgumentNullException("bytes");
+            }
+
+            if (string.IsNullOrEmpty(remoteEndPoint))
+            {
+                throw new ArgumentNullException("remoteEndPoint");
+            }
+
+            return _udpClient.SendAsync(bytes, bytes.Length, new NetworkManager().Parse(remoteEndPoint));
+        }
+    }
+
+}