From da42e98bf80f22747089946a6a08840e0bf646a9 Mon Sep 17 00:00:00 2001
From: Miguel Grinberg <miguel.grinberg@gmail.com>
Date: Sun, 13 Aug 2023 14:59:21 +0100
Subject: [PATCH] Do not duplicate SSLSocket instances (Fixes #26)

---
 src/simple_websocket/ws.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/simple_websocket/ws.py b/src/simple_websocket/ws.py
index ce4af91..21dc7a2 100644
--- a/src/simple_websocket/ws.py
+++ b/src/simple_websocket/ws.py
@@ -313,7 +313,11 @@ def __init__(self, environ, subprotocols=None, receive_bytes=4096,
             if not hasattr(wsgi_input, 'raw') and hasattr(wsgi_input, 'rfile'):
                 wsgi_input = wsgi_input.rfile
             if hasattr(wsgi_input, 'raw'):
-                sock = wsgi_input.raw._sock.dup()
+                sock = wsgi_input.raw._sock
+                try:
+                    sock = sock.dup()
+                except NotImplementedError:
+                    pass
                 self.mode = 'gevent'
         if sock is None:
             raise RuntimeError('Cannot obtain socket from WSGI environment.')