net.server_epoll: Add support for systemd socket activation
Allows creating listening sockets and accepting client connections
before Prosody starts.
This is unlike normal Prosody dynamic resource management, where ports
may added and removed at any time, and the ports defined by the config.
Weird things happen if these are closed (e.g. due to reload) so here we
prevent closing and ensure sockets are reused when opened again.
-- Prosody IM
-- Copyright (C) 2019 Kim Alvefur
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local st = require "prosody.util.stanza";
local xmlns_bidi_feature = "urn:xmpp:features:bidi"
local xmlns_bidi = "urn:xmpp:bidi";
local require_encryption = module:get_option_boolean("s2s_require_encryption", true);
module:hook("s2s-stream-features", function(event)
local origin, features = event.origin, event.features;
if origin.type == "s2sin_unauthed" and (not require_encryption or origin.secure) then
features:tag("bidi", { xmlns = xmlns_bidi_feature }):up();
end
end);
module:hook_tag("http://etherx.jabber.org/streams", "features", function (session, stanza)
if session.type == "s2sout_unauthed" and (not require_encryption or session.secure) then
local bidi = stanza:get_child("bidi", xmlns_bidi_feature);
if bidi then
session.incoming = true;
session.log("debug", "Requesting bidirectional stream");
local request_bidi = st.stanza("bidi", { xmlns = xmlns_bidi });
module:fire_event("s2sout-stream-features", { origin = session, features = request_bidi });
session.sends2s(request_bidi);
end
end
end, 200);
module:hook_tag("urn:xmpp:bidi", "bidi", function(session)
if session.type == "s2sin_unauthed" and (not require_encryption or session.secure) then
session.log("debug", "Requested bidirectional stream");
session.outgoing = true;
return true;
end
end);