From c66adb1b89d584c2ca07579c81e54043a3193a18 Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Sat, 2 Nov 2019 15:27:53 +0100 Subject: mod_dialback: Abort early if request is missing addressing attributes Prevents traceback from passing nil to nameprep() --- plugins/mod_dialback.lua | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'plugins') diff --git a/plugins/mod_dialback.lua b/plugins/mod_dialback.lua index eddc3209..dc843498 100644 --- a/plugins/mod_dialback.lua +++ b/plugins/mod_dialback.lua @@ -93,6 +93,11 @@ module:hook("stanza/jabber:server:dialback:result", function(event) -- he wants to be identified through dialback -- We need to check the key with the Authoritative server local attr = stanza.attr; + if not attr.to or not attr.from then + origin.log("debug", "Missing Dialback addressing (from=%q, to=%q)", attr.from, attr.to); + origin:close("improper-addressing"); + return true; + end local to, from = nameprep(attr.to), nameprep(attr.from); if not hosts[to] then -- cgit v1.2.3