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annotate mod_pinger/mod_pinger.lua @ 4813:0a257d1402c3

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mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents 8298b06e6603
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2034
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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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4
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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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7
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8 function update_watchdog(data, session)
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9 if session.idle_watchdog then
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10 session.idle_watchdog:reset();
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11 session.idle_pinged = nil;
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12 end
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13 return data;
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14 end
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16 function check_session(watchdog)
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17 local session = watchdog.session;
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18 if session.smacks then
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19 unwatch_session(session);
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20 return;
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21 end
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22 if not session.idle_pinged then
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23 session.idle_pinged = true;
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24 session.send(st.iq({ type = "get", from = module.host, id = "idle-check" })
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25 :tag("ping", { xmlns = "urn:xmpp:ping" }));
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26 return ping_timeout; -- Call us again after ping_timeout
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27 else
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28 module:log("info", "Client %q silent for too long, closing...", session.full_jid);
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29 session:close("connection-timeout");
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30 end
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31 end
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34 function watch_session(session)
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35 if not session.idle_watchdog
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36 and not session.requests then -- Don't watch BOSH connections (BOSH already has timeouts)
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37 session.idle_watchdog = new_watchdog(idle_timeout, check_session);
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38 session.idle_watchdog.session = session;
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39 filters.add_filter(session, "bytes/in", update_watchdog);
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40 end
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41 end
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43 function unwatch_session(session)
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44 if session.idle_watchdog then
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45 filters.remove_filter(session, "bytes/in", update_watchdog);
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46 session.idle_watchdog:cancel();
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47 session.idle_watchdog = nil;
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48 end
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49 end
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50
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51 module:hook("resource-bind", function (event) watch_session(event.session); end);
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52 module:hook("resource-unbind", function (event) unwatch_session(event.session); end);