From 8c8c480477d1439361110cc33e1907e20585fa78 Mon Sep 17 00:00:00 2001
From: Holger Weiss <holger@zedat.fu-berlin.de>
Date: Wed, 29 Aug 2018 16:23:56 +0200
Subject: [PATCH] ejabberd_s2s_in: Log message on connection close

Log a message when an incoming s2s connection is closed, analogous to
the message on outgoing s2s connection close.
---
 src/ejabberd_s2s_in.erl | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/ejabberd_s2s_in.erl b/src/ejabberd_s2s_in.erl
index 8a681bbbc..9968e8012 100644
--- a/src/ejabberd_s2s_in.erl
+++ b/src/ejabberd_s2s_in.erl
@@ -131,7 +131,15 @@ reject_unauthenticated_packet(State, _Pkt) ->
     Err = xmpp:serr_not_authorized(),
     send(State, Err).
 
-process_closed(State, _Reason) ->
+process_closed(#{server := LServer} = State, Reason) ->
+    RServer = case State of
+		  #{remote_server := Name} ->
+		      Name;
+		  #{ip := IP} ->
+		      ejabberd_config:may_hide_data(misc:ip_to_list(IP))
+	      end,
+    ?INFO_MSG("Closing inbound s2s connection ~s -> ~s: ~s",
+	      [RServer, LServer, xmpp_stream_out:format_error(Reason)]),
     stop(State).
 
 %%%===================================================================