From 8bde7461c18460e4fbbc87be6d0853d2a645d5ba Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Mon, 6 Sep 2021 23:21:25 +0200
Subject: mod_c2s,mod_s2s: Indicate stanza size violation with condition from
 XEP-0205 (thanks mjk)

---
 plugins/mod_c2s.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'plugins/mod_c2s.lua')

diff --git a/plugins/mod_c2s.lua b/plugins/mod_c2s.lua
index 8bd28782..1f22d871 100644
--- a/plugins/mod_c2s.lua
+++ b/plugins/mod_c2s.lua
@@ -339,7 +339,11 @@ function listener.onconnect(conn)
 				if not ok then
 					log("debug", "Received invalid XML (%s) %d bytes: %q", err, #data, data:sub(1, 300));
 					if err == "stanza-too-large" then
-						session:close({ condition = "policy-violation", text = "XML stanza is too big" });
+						session:close({
+							condition = "policy-violation",
+							text = "XML stanza is too big",
+							extra = st.stanza("stanza-too-big", { xmlns = 'urn:xmpp:errors' }),
+						});
 					else
 						session:close("not-well-formed");
 					end
-- 
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