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annotate mod_audit_status/mod_audit_status.lua @ 5853:97c9b76867ca

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mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel) Otherwise the global event handlers accumulate, one added each time logging is reoladed, and each invocation of the signal or event triggers one dump of each created ringbuffer.
author Kim Alvefur <zash@zash.se>
date Sun, 03 Mar 2024 11:23:40 +0100
parents bd0abf821cef
children
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c450dbf6c0fa mod_audit_status: New module to log server status to audit log
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1 module:depends("audit");
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2
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3 local st = require "util.stanza";
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4
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5 -- Suppress warnings about module:audit()
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6 -- luacheck: ignore 143/module
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7
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8 local heartbeat_interval = module:get_option_number("audit_status_heartbeat_interval", 60);
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9
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10 local store = module:open_store(nil, "keyval+");
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11
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12 -- This is global, to make it available to other modules
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13 crashed = false; --luacheck: ignore 131/crashed
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14
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15 module:hook_global("server-started", function ()
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16 local recorded_status = store:get();
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17 if recorded_status and recorded_status.status == "started" then
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18 module:audit(nil, "server-crashed", { timestamp = recorded_status.heartbeat });
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19 crashed = true;
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20 end
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21 module:audit(nil, "server-started");
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22 store:set_key(nil, "status", "started");
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23 end);
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24
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25 module:hook_global("server-stopped", function ()
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26 module:audit(nil, "server-stopped", {
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27 custom = {
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28 prosody.shutdown_reason and st.stanza("note"):text(prosody.shutdown_reason);
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29 };
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30 });
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31 store:set_key(nil, "status", "stopped");
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32 end);
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33
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34 if heartbeat_interval then
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35 local async = require "util.async";
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36 local heartbeat_writer = async.runner(function (timestamp)
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37 store:set_key(nil, "heartbeat", timestamp);
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38 end);
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39
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40 module:add_timer(0, function ()
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41 heartbeat_writer:run(os.time());
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42 return heartbeat_interval;
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43 end);
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44 end