# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1527841578 -7200
# Node ID 0bb46a1bb3986fb653446128adcb5797a3557dce
# Parent  11176f47a03a66fcb3416784fb90057a7dfcac5d
MUC: Handle and return error in role change when granting voice

diff -r 11176f47a03a -r 0bb46a1bb398 plugins/muc/moderated.lib.lua
--- a/plugins/muc/moderated.lib.lua	Fri Jun 01 09:56:22 2018 +0200
+++ b/plugins/muc/moderated.lib.lua	Fri Jun 01 10:26:18 2018 +0200
@@ -90,8 +90,13 @@
 		return;
 	end
 
-	module:log("debug", "%s granted voice to %s", jid_resource(occupant.nick), jid_resource(occupant.jid));
-	event.room:set_role(actor, affected_occupant.nick, "participant", "Voice granted");
+	module:log("debug", "%s granted voice to %s", jid_resource(event.occupant.nick), jid_resource(occupant.jid));
+	local ok, errtype, err = event.room:set_role(actor, affected_occupant.nick, "participant", "Voice granted");
+
+	if not ok then
+		module:log("debug", "Error granting voice: %s", err or errtype);
+		event.origin.send(st.error_reply(event.stanza, errtype, err));
+	end
 end);