From 20506a83934fef028b73b5d4d6489ebfd1839ad6 Mon Sep 17 00:00:00 2001
From: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Date: Wed, 15 Mar 2023 09:22:14 +0100
Subject: [PATCH] handle connection close more gracefully

Change-Id: Iea12e95e88fa3638f91edc2e99abb5ece3f75b4d
fixes: #4705
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/30685
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
---
 frappy/protocol/interface/tcp.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/frappy/protocol/interface/tcp.py b/frappy/protocol/interface/tcp.py
index 8a8b3f3e..9a4132b3 100644
--- a/frappy/protocol/interface/tcp.py
+++ b/frappy/protocol/interface/tcp.py
@@ -150,6 +150,10 @@ class TCPRequestHandler(socketserver.BaseRequestHandler):
             if self.running:
                 try:
                     self.request.sendall(outdata)
+                except (BrokenPipeError, IOError) as e:
+                    self.log.debug('send_reply got an %r, connection closed?',
+                                   e)
+                    self.running = False
                 except Exception as e:
                     self.log.error('ERROR in send_reply %r', e)
                     self.running = False