local new_watchdog = require "util.watchdog".new;
local filters = require "util.filters";
local st = require "util.stanza";
local idle_timeout = module:get_option_number("c2s_idle_timeout", 300);
local ping_timeout = module:get_option_number("c2s_ping_timeout", 30);
function update_watchdog(data, session)
if session.idle_watchdog then
session.idle_watchdog:reset();
session.idle_pinged = nil;
end
return data;
end
function check_session(watchdog)
local session = watchdog.session;
if session.smacks then
unwatch_session(session);
return;
end
if not session.idle_pinged then
session.idle_pinged = true;
session.send(st.iq({ type = "get", from = module.host, id = "idle-check" })
:tag("ping", { xmlns = "urn:xmpp:ping" }));
return ping_timeout; -- Call us again after ping_timeout
else
module:log("info", "Client %q silent for too long, closing...", session.full_jid);
session:close("connection-timeout");
end
end
function watch_session(session)
if not session.idle_watchdog
and not session.requests then -- Don't watch BOSH connections (BOSH already has timeouts)
session.idle_watchdog = new_watchdog(idle_timeout, check_session);
session.idle_watchdog.session = session;
filters.add_filter(session, "bytes/in", update_watchdog);
end
end
function unwatch_session(session)
if session.idle_watchdog then
filters.remove_filter(session, "bytes/in", update_watchdog);
session.idle_watchdog:cancel();
session.idle_watchdog = nil;
end
end
module:hook("resource-bind", function (event) watch_session(event.session); end);
module:hook("resource-unbind", function (event) unwatch_session(event.session); end);