From 636df213c34d261182215ad67b236c84cc59307c Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Thu, 12 Jul 2018 02:14:16 +0200
Subject: MUC: Reject invisible nicknames (fixes #979)
---
plugins/muc/muc.lib.lua | 8 ++++++++
1 file changed, 8 insertions(+)
(limited to 'plugins/muc')
diff --git a/plugins/muc/muc.lib.lua b/plugins/muc/muc.lib.lua
index 22e3ff93..73c35274 100644
--- a/plugins/muc/muc.lib.lua
+++ b/plugins/muc/muc.lib.lua
@@ -401,6 +401,14 @@ module:hook("muc-occupant-pre-join", function(event)
end
end, -10);
+module:hook("muc-occupant-pre-join", function(event)
+ local nick = jid_resource(event.stanza.attr.from);
+ if not nick:find("%S") then
+ event.origin.send(st.error_reply(stanza, "modify", "not-allowed", "Invisible Nicknames are forbidden"));
+ return true;
+ end
+end, 1);
+
function room_mt:handle_first_presence(origin, stanza)
if not stanza:get_child("x", "http://jabber.org/protocol/muc") then
module:log("debug", "Room creation without <x>, possibly desynced");
--
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