From dab8e150520f5a76d875a926530632783e17006f Mon Sep 17 00:00:00 2001
From: Claus Vium <clausvium@gmail.com>
Date: Wed, 27 Feb 2019 21:48:28 +0100
Subject: [PATCH] Check websocket state before closing

---
 .../SocketSharp/WebSocketSharpListener.cs                 | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Emby.Server.Implementations/SocketSharp/WebSocketSharpListener.cs b/Emby.Server.Implementations/SocketSharp/WebSocketSharpListener.cs
index c5abad5d3..9422673f5 100644
--- a/Emby.Server.Implementations/SocketSharp/WebSocketSharpListener.cs
+++ b/Emby.Server.Implementations/SocketSharp/WebSocketSharpListener.cs
@@ -93,8 +93,12 @@ using Microsoft.Extensions.Logging;
                     } while (socket.State == WebSocketState.Open && result.MessageType != WebSocketMessageType.Close);
 
 
-                    await webSocketContext.CloseAsync(result.CloseStatus ?? WebSocketCloseStatus.NormalClosure,
-                        result.CloseStatusDescription, _disposeCancellationToken);
+                    if (webSocketContext.State == WebSocketState.Open)
+                    {
+                        await webSocketContext.CloseAsync(result.CloseStatus ?? WebSocketCloseStatus.NormalClosure,
+                            result.CloseStatusDescription, _disposeCancellationToken);
+                    }
+
                     socket.Dispose();
                 }
                 else