# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1587424675 -7200
# Node ID 19ffb2ebf114df1db35b31ee26095ce7f23bdc87
# Parent  b2ede421adeb82b8d557171220e408985f525ee6
mod_mam: Add more positive hints for storage

Mostly just lifted from mod_csi_simple

diff -r b2ede421adeb -r 19ffb2ebf114 plugins/mod_mam/mod_mam.lua
--- a/plugins/mod_mam/mod_mam.lua	Tue Apr 21 01:01:25 2020 +0200
+++ b/plugins/mod_mam/mod_mam.lua	Tue Apr 21 01:17:55 2020 +0200
@@ -284,6 +284,18 @@
 	if stanza:get_child("body") then
 		return true, "body";
 	end
+	if stanza:get_child("subject") then
+		-- XXX Who would send a message with a subject but with a body?
+		return true, "subject";
+	end
+	if stanza:get_child("encryption", "urn:xmpp:eme:0") then
+		-- Since we can't know what an encrypted message contains, we assume it's important
+		return true, "encrypted";
+	end
+	if stanza:get_child("x", "jabber:x:conference")
+	or stanza:find("{http://jabber.org/protocol/muc#user}x/invite") then
+		return true, "invite";
+	end
 
 	return true, "default";
 end