update http server

MediaBrowser.Dlna/Profiles/XboxOneProfile.cs

@@ -12,8 +12,6 @@ namespace MediaBrowser.Dlna.Profiles
             Name = "Xbox One";
 
             TimelineOffsetSeconds = 40;
-            RequiresPlainFolders = true;
-            RequiresPlainVideoItems = true;
             
             Identification = new DeviceIdentification
             {

MediaBrowser.Server.Implementations/HttpServer/HttpListenerHost.cs

@@ -205,8 +205,8 @@ namespace MediaBrowser.Server.Implementations.HttpServer
             HostContext.Config.HandlerFactoryPath = ListenerRequest.GetHandlerPathIfAny(UrlPrefixes.First());
 
             _listener = _supportsNativeWebSocket && NativeWebSocket.IsSupported
-                ? _listener = new HttpListenerServer(_logger, OnRequestReceived)
-                //? _listener = new WebSocketSharpListener(_logger, OnRequestReceived)
+                //? _listener = new HttpListenerServer(_logger, OnRequestReceived)
+                ? _listener = new WebSocketSharpListener(_logger, OnRequestReceived)
                 : _listener = new WebSocketSharpListener(_logger, OnRequestReceived);
 
             _listener.WebSocketHandler = WebSocketHandler;

MediaBrowser.Server.Implementations/HttpServer/RangeRequestWriter.cs

@@ -173,9 +173,64 @@ namespace MediaBrowser.Server.Implementations.HttpServer
                     ThrottleCallback = ThrottleCallback
                 };
             }
-            var task = WriteToAsync(responseStream);
+            WriteToInternal(responseStream);
+        }
 
-            Task.WaitAll(task);
+        /// <summary>
+        /// Writes to async.
+        /// </summary>
+        /// <param name="responseStream">The response stream.</param>
+        /// <returns>Task.</returns>
+        private void WriteToInternal(Stream responseStream)
+        {
+            try
+            {
+                // Headers only
+                if (IsHeadRequest)
+                {
+                    return;
+                }
+
+                using (var source = SourceStream)
+                {
+                    // If the requested range is "0-", we can optimize by just doing a stream copy
+                    if (RangeEnd >= TotalContentLength - 1)
+                    {
+                        source.CopyTo(responseStream);
+                    }
+                    else
+                    {
+                        CopyToInternal(source, responseStream, Convert.ToInt32(RangeLength));
+                    }
+                }
+            }
+            finally
+            {
+                if (OnComplete != null)
+                {
+                    OnComplete();
+                }
+            }
+        }
+
+        private void CopyToInternal(Stream source, Stream destination, int copyLength)
+        {
+            const int bufferSize = 81920;
+            var array = new byte[bufferSize];
+            int count;
+            while ((count = source.Read(array, 0, array.Length)) != 0)
+            {
+                var bytesToCopy = Math.Min(count, copyLength);
+
+                destination.Write(array, 0, bytesToCopy);
+
+                copyLength -= bytesToCopy;
+
+                if (copyLength <= 0)
+                {
+                    break;
+                }
+            }
         }
 
         /// <summary>

MediaBrowser.Server.Implementations/HttpServer/StreamWriter.cs

@@ -91,9 +91,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
                     ThrottleCallback = ThrottleCallback
                 };
             }
-            var task = WriteToAsync(responseStream);
-
-            Task.WaitAll(task);
+            WriteToAsync(responseStream);
         }
 
         /// <summary>
@@ -101,13 +99,13 @@ namespace MediaBrowser.Server.Implementations.HttpServer
         /// </summary>
         /// <param name="responseStream">The response stream.</param>
         /// <returns>Task.</returns>
-        private async Task WriteToAsync(Stream responseStream)
+        private void WriteToAsync(Stream responseStream)
         {
             try
             {
                 using (var src = SourceStream)
                 {
-                    await src.CopyToAsync(responseStream).ConfigureAwait(false);
+                    src.CopyTo(responseStream);
                 }
             }
             catch (Exception ex)