--- a/plugins/mod_csi_simple.lua	Tue Apr 14 16:51:24 2020 +0200
+++ b/plugins/mod_csi_simple.lua	Sat Apr 18 16:18:41 2020 +0200
@@ -1,4 +1,4 @@
--- Copyright (C) 2016-2018 Kim Alvefur
+-- Copyright (C) 2016-2020 Kim Alvefur
 --
 -- This project is MIT/X11 licensed. Please see the
 -- COPYING file in the source package for more information.
@@ -13,6 +13,8 @@
 
 local queue_size = module:get_option_number("csi_queue_size", 256);
 
+local important_payloads = module:get_option_set("csi_important_payloads", { });
+
 module:hook("csi-is-stanza-important", function (event)
 	local stanza = event.stanza;
 	if not st.is_stanza(stanza) then
@@ -46,6 +48,11 @@
 		if stanza:get_child("encryption", "urn:xmpp:eme:0") then
 			return true;
 		end
+		for important in important_payloads do
+			if stanza:find(important) then
+				return true;
+			end
+		end
 		return false;
 	end
 	return true;