From d4d1941133e801562bd5ca73cc00d85b5f2be95f Mon Sep 17 00:00:00 2001
From: Holger Weiss <holger@zedat.fu-berlin.de>
Date: Sat, 23 Jul 2016 01:23:24 +0200
Subject: [PATCH] XEP-0198: Log debug message when dropping stanza

Log a debug message when an unacknowledged message is neither resent nor
bounced because it's archived.
---
 src/ejabberd_c2s.erl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/ejabberd_c2s.erl b/src/ejabberd_c2s.erl
index 9ddb8511d..74ce74d62 100644
--- a/src/ejabberd_c2s.erl
+++ b/src/ejabberd_c2s.erl
@@ -2951,6 +2951,9 @@ handle_unacked_stanzas(#state{mgmt_state = MgmtState} = StateData)
 						   [StateData, From,
 						    StateData#state.jid, El]) of
 			true ->
+			    ?DEBUG("Dropping archived message stanza from ~s",
+				   [fxml:get_attr_s(<<"from">>,
+						    El#xmlel.attrs)]),
 			    ok;
 			false ->
 			    ReRoute(From, To, El, Time)