annotate mod_spam_reporting/mod_spam_reporting.lua @ 5173:460f78654864

mod_muc_rtbl: also filter messages This was a bit tricky because we don't want to run the JIDs through SHA256 on each message. Took a while to come up with this simple plan of just caching the SHA256 of the JIDs on the occupants. This will leave some dirt in the occupants after unloading the module, but that should be ok; once they cycle the room, the hashes will be gone. This is direly needed, otherwise, there is a tight race between the moderation activities and the actors joining the room.
author Jonas Schäfer <jonas@wielicki.name>
date Tue, 21 Feb 2023 21:37:27 +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);