From: Evgeny Khramtsov <ekhramtsov@process-one.net>
Date: Mon, 24 Jun 2019 14:00:51 +0000 (+0300)
Subject: Don't crash on empty avatar data
X-Git-Tag: 19.08~167
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d0b65a3c959553787e94101143fb833273f7301b;p=ejabberd

Don't crash on empty avatar data
---

diff --git a/src/mod_avatar.erl b/src/mod_avatar.erl
index 6d2c42c95..2dd0adbc2 100644
--- a/src/mod_avatar.erl
+++ b/src/mod_avatar.erl
@@ -219,6 +219,11 @@ get_avatar_data(JID, ItemID) ->
 				  xmpp:format_error(Why)]),
 		    {error, invalid_data}
 	    end;
+	#pubsub_item{payload = []} ->
+	    ?WARNING_MSG("Empty avatar data detected "
+			 "for ~s@~s with item id ~s",
+			 [LUser, LServer, ItemID]),
+	    {error, invalid_data};
 	{error, #stanza_error{reason = 'item-not-found'}} ->
 	    {error, notfound};
 	{error, Reason} ->