From 45508538aa2737154d97401f2476ec8828595320 Mon Sep 17 00:00:00 2001
From: Dmitri Bogomolov <4glitch@gmail.com>
Date: Fri, 15 May 2020 15:22:25 +0300
Subject: [PATCH] Use one stream in version message for inbound connections

---
 src/network/bmproto.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/network/bmproto.py b/src/network/bmproto.py
index fc6ee92d..b5ae9daf 100644
--- a/src/network/bmproto.py
+++ b/src/network/bmproto.py
@@ -542,10 +542,15 @@ class BMProto(AdvancedDispatcher, ObjectTracker):
         if not ua_valid:
             self.userAgent = '/INVALID:0/'
         if not self.isOutbound:
+            common_streams = self.streams.intersection(
+                connectionpool.BMConnectionPool().streams)
+            try:  # leave one because of bug in decode_payload_content()
+                common_streams = [min(common_streams)]
+            except ValueError:
+                common_streams = [1]
             self.append_write_buf(protocol.assembleVersionMessage(
                 self.destination.host, self.destination.port,
-                connectionpool.BMConnectionPool().streams, True,
-                nodeid=self.nodeid))
+                common_streams, True, nodeid=self.nodeid))
             logger.debug(
                 '%(host)s:%(port)i sending version',
                 self.destination._asdict())