[Modify] Add it

websocket-sharp/WebSocket.cs

@@ -1764,6 +1764,29 @@ namespace WebSocketSharp
       return false;
     }
 
+    // As server
+    private void refuseHandshake (CloseStatusCode code, string reason)
+    {
+      _readyState = WebSocketState.Closing;
+
+      var res = createHandshakeFailureResponse (HttpStatusCode.BadRequest);
+      sendHttpResponse (res);
+
+      releaseServerResources ();
+
+      _readyState = WebSocketState.Closed;
+
+      var e = new CloseEventArgs (code, reason);
+
+      try {
+        OnClose.Emit (this, e);
+      }
+      catch (Exception ex) {
+        _logger.Error (ex.Message);
+        _logger.Debug (ex.ToString ());
+      }
+    }
+
     // As client
     private void releaseClientResources ()
     {