annotate mod_spam_reporting/mod_spam_reporting.lua @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents a357c3e3bd32
children
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1 -- XEP-0377: Spam Reporting for Prosody
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2 -- Copyright (C) 2016-2021 Kim Alvefur
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3 --
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4 -- This file is MIT/X11 licensed.
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5
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6 local jid_prep = require "util.jid".prep;
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7
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8 module:depends("blocklist");
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9
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10 module:add_feature("urn:xmpp:reporting:0");
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11 module:add_feature("urn:xmpp:reporting:reason:spam:0");
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12 module:add_feature("urn:xmpp:reporting:reason:abuse:0");
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13 module:add_feature("urn:xmpp:reporting:1");
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14
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15 module:hook("iq-set/self/urn:xmpp:blocking:block", function (event)
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16 for item in event.stanza.tags[1]:childtags("item") do
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17 local report = item:get_child("report", "urn:xmpp:reporting:0") or item:get_child("report", "urn:xmpp:reporting:1");
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18 local jid = jid_prep(item.attr.jid);
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19 if report and jid then
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20 local report_type, reason;
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21 if report.attr.xmlns == "urn:xmpp:reporting:0" then
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22 report_type = report:get_child("spam") and "spam" or report:get_child("abuse") and "abuse" or "unknown";
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23 reason = report:get_child_text("text");
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24 elseif report.attr.xmlns == "urn:xmpp:reporting:1" then
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25 report_type = "unknown";
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26 if report.attr.reason == "urn:xmpp:reporting:abuse" then
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27 report_type = "abuse";
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28 end
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29 if report.attr.reason == "urn:xmpp:reporting:spam" then
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30 report_type = "spam";
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31 end
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32 reason = report:get_child_text("text");
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33 end
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34
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35 if report_type then
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36 module:log("warn", "Received report of %s from JID '%s', %s", report_type, jid, reason or "no reason given");
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37 module:fire_event(module.name.."/"..report_type.."-report", {
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38 origin = event.origin, stanza = event.stanza, jid = jid,
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39 item = item, report = report, reason = reason, });
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40 end
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41 end
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42 end
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43 end, 1);