mod_s2s: Retrieve stanza size limit from peer for bidi connections
authorKim Alvefur <zash@zash.se>
Wed, 09 Nov 2022 19:10:16 +0100
changeset 12815 ccc0bdad82cc
parent 12814 871d2c95b403
child 12816 b2d422b88cd6
mod_s2s: Retrieve stanza size limit from peer for bidi connections Having mod_s2s know about the bidi namespace is perhaps a bit awkward but putting this in mod_s2s_bidi would be more awkward as it has nothing to do with limits. Some indirection event could be added in the future.
plugins/mod_s2s.lua
--- a/plugins/mod_s2s.lua	Thu Oct 20 14:22:36 2022 +0200
+++ b/plugins/mod_s2s.lua	Wed Nov 09 19:10:16 2022 +0100
@@ -253,6 +253,13 @@
 				:text_tag("max-size", string.format("%d", stanza_size_limit)):up();
 		end
 	end);
+	module:hook_tag("urn:xmpp:bidi", "bidi", function(session, stanza)
+		-- Advertising features on bidi connections where no <stream:features> is sent in the other direction
+		local limits = stanza:get_child("limits", "urn:xmpp:stream-limits:0");
+		if limits then
+			session.outgoing_stanza_size_limit = tonumber(limits:get_child_text("max-size"));
+		end
+	end, 100);
 	module:hook("s2s-authenticated", make_authenticated, -1);
 	module:hook("s2s-read-timeout", keepalive, -1);
 	module:hook_stanza("http://etherx.jabber.org/streams", "features", function (session, stanza) -- luacheck: ignore 212/stanza