annotate mod_csi_grace_period/mod_csi_grace_period.lua @ 3844:c240934703bc

mod_stats39: Add a README
author Kim Alvefur <zash@zash.se>
date Sun, 19 Jan 2020 14:55:36 +0100
parents 7570976318a9
children e1e337dc05b6
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1 -- Copyright (c) 2019 Kim Alvefur
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6 -- Yes, this module touches stores data in user sessions
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7 -- luacheck: ignore 122
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8
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9 local grace_period = module:get_option_number("grace_period", 30);
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10
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11 local user_sessions = prosody.hosts[module.host].sessions;
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12
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13 module:hook("csi-is-stanza-important", function (event)
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14 if event.stanza.name ~= "message" then return end
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15 local session = event.session;
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16 if not session then return; end
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17
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18 local user_session = user_sessions[session.username];
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19 if not user_session then return; end
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20
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21 if user_session.grace_time_start then
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22 if user_session.last_active == session.resource then
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23 return;
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24 end
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25 if (os.time() - user_session.grace_time_start) < grace_period then
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26 session.log("debug", "Within grace period, probably seen");
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27 return false;
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28 end
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29 end
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30 end, 1);
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31
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32 local function on_activity(event)
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33 local stanza, origin = event.stanza, event.origin;
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34 local user_session = user_sessions[origin.username];
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35 if not user_session then return; end
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36
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37 if stanza:get_child("body") or stanza:get_child("active", "http://jabber.org/protocol/chatstates") then
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38 user_session.last_active = origin.resource;
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39 user_session.grace_time_start = os.time();
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40 end
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41 end
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42 module:hook("pre-message/full", on_activity);
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43 module:hook("pre-message/bare", on_activity);
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44 module:hook("pre-message/host", on_activity);