2034
|
1 local new_watchdog = require "util.watchdog".new; |
|
2 local filters = require "util.filters"; |
|
3 local st = require "util.stanza"; |
|
4 |
|
5 local idle_timeout = module:get_option_number("c2s_idle_timeout", 300); |
|
6 local ping_timeout = module:get_option_number("c2s_ping_timeout", 30); |
|
7 |
|
8 function update_watchdog(data, session) |
|
9 session.idle_watchdog:reset(); |
|
10 session.idle_pinged = nil; |
|
11 return data; |
|
12 end |
|
13 |
|
14 function check_session(watchdog) |
|
15 local session = watchdog.session; |
|
16 if not session.idle_pinged then |
|
17 session.idle_pinged = true; |
|
18 if session.smacks and not session.awaiting_ack then |
|
19 session.send(st.stanza("r", { xmlns = "urn:xmpp:sm:2" })) -- TODO: hardcoded sm:2 |
|
20 else |
|
21 session.send(st.iq({ type = "get", from = module.host, id = "idle-check" }) |
|
22 :tag("ping", { xmlns = "urn:xmpp:ping" })); |
|
23 end |
|
24 return ping_timeout; -- Call us again after ping_timeout |
|
25 else |
|
26 module:log("info", "Client %q silent for too long, closing...", session.full_jid); |
|
27 session:close("connection-timeout"); |
|
28 end |
|
29 end |
|
30 |
|
31 |
|
32 function watch_session(session) |
|
33 if not session.idle_watchdog |
|
34 and not session.requests then -- Don't watch BOSH connections (BOSH already has timeouts) |
|
35 session.idle_watchdog = new_watchdog(idle_timeout, check_session); |
|
36 session.idle_watchdog.session = session; |
|
37 filters.add_filter(session, "bytes/in", update_watchdog); |
|
38 end |
|
39 end |
|
40 |
|
41 function unwatch_session(session) |
|
42 if session.idle_watchdog then |
|
43 session.idle_watchdog:cancel(); |
|
44 session.idle_watchdog = nil; |
|
45 filters.remove_filter(session, "bytes/in", update_watchdog); |
|
46 end |
|
47 end |
|
48 |
|
49 module:hook("resource-bind", function (event) watch_session(event.session); end); |
|
50 module:hook("resource-unbind", function (event) unwatch_session(event.session); end); |