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annotate mod_pinger/mod_pinger.lua @ 3103:5bf79bb3cf7e

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Neuter 0198 from mod_pinger, fix #712
author Georg Lukas <georg@op-co.de>
date Wed, 06 Jun 2018 19:20:10 +0200
parents c971b2cee2cc
children 8298b06e6603
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1 local new_watchdog = require "util.watchdog".new;
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2 local filters = require "util.filters";
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3 local st = require "util.stanza";
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5 local idle_timeout = module:get_option_number("c2s_idle_timeout", 300);
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6 local ping_timeout = module:get_option_number("c2s_ping_timeout", 30);
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8 function update_watchdog(data, session)
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9 session.idle_watchdog:reset();
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10 session.idle_pinged = nil;
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11 return data;
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12 end
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14 function check_session(watchdog)
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15 local session = watchdog.session;
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16 if session.smacks then
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17 unwatch_session(session);
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18 return;
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19 end
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20 if not session.idle_pinged then
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21 session.idle_pinged = true;
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22 session.send(st.iq({ type = "get", from = module.host, id = "idle-check" })
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23 :tag("ping", { xmlns = "urn:xmpp:ping" }));
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24 return ping_timeout; -- Call us again after ping_timeout
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25 else
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26 module:log("info", "Client %q silent for too long, closing...", session.full_jid);
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27 session:close("connection-timeout");
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28 end
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29 end
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32 function watch_session(session)
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33 if not session.idle_watchdog
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34 and not session.requests then -- Don't watch BOSH connections (BOSH already has timeouts)
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35 session.idle_watchdog = new_watchdog(idle_timeout, check_session);
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36 session.idle_watchdog.session = session;
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37 filters.add_filter(session, "bytes/in", update_watchdog);
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38 end
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39 end
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41 function unwatch_session(session)
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42 if session.idle_watchdog then
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43 filters.remove_filter(session, "bytes/in", update_watchdog);
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44 session.idle_watchdog:cancel();
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45 session.idle_watchdog = nil;
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46 end
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47 end
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49 module:hook("resource-bind", function (event) watch_session(event.session); end);
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50 module:hook("resource-unbind", function (event) unwatch_session(event.session); end);