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mod_c2s,mod_s2s: Advertise idle-seconds per XEP-0478

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This is the time after liveness checks are performed via the respective
read-timeout event, which by default involves sending a space character
but could be overridden e.g. as is done by mod_smacks.

Only advertised, unsure what we would do with it.
This commit is contained in:
Kim Alvefur 2024-08-03 16:28:59 +02:00
parent cf446f4188
commit 73aed09475
2 changed files with 37 additions and 8 deletions
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18
plugins/mod_c2s.lua
View file

@ -30,6 +30,12 @@ local stream_close_timeout = module:get_option_period("c2s_close_timeout", 5);
local opt_keepalives = module:get_option_boolean("c2s_tcp_keepalives", module:get_option_boolean("tcp_keepalives", true));
local stanza_size_limit = module:get_option_integer("c2s_stanza_size_limit", 1024*256,10000);
local advertised_idle_timeout = 14*60; -- default in all net.server implementations
local network_settings = module:get_option("network_settings");
if type(network_settings) == "table" and type(network_settings.read_timeout) == "number" then
advertised_idle_timeout = network_settings.read_timeout;
end
local measure_connections = module:metric("gauge", "connections", "", "Established c2s connections", {"host", "type", "ip_family"});
local sessions = module:shared("sessions");
@ -130,10 +136,16 @@ function stream_callbacks._streamopened(session, attr)
local features = st.stanza("stream:features");
hosts[session.host].events.fire_event("stream-features", { origin = session, features = features, stream = attr });
if features.tags[1] or session.full_jid then
if stanza_size_limit then
if stanza_size_limit or advertised_idle_timeout then
features:reset();
features:tag("limits", { xmlns = "urn:xmpp:stream-limits:0" })
:text_tag("max-bytes", string.format("%d", stanza_size_limit)):up();
local limits = features:tag("limits", { xmlns = "urn:xmpp:stream-limits:0" });
if stanza_size_limit then
limits:text_tag("max-bytes", string.format("%d", stanza_size_limit));
end
if advertised_idle_timeout then
limits:text_tag("idle-seconds", string.format("%d", advertised_idle_timeout));
end
limits:reset();
end
send(features);
else