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annotate mod_report_tracker/mod_report_tracker.lua @ 6035:b04518fa0987

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mod_report_tracker: Keep track of spam/abuse reports about local JIDs
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 Nov 2024 13:12:20 +0000
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children 765e0235c202
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6035
b04518fa0987 mod_report_tracker: Keep track of spam/abuse reports about local JIDs
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1 local um = require "core.usermanager";
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2 local jid = require "util.jid";
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3
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4 local trusted_reporters = module:get_option_inherited_set("trusted_reporters", {});
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5
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6 local reports_received = module:open_store("reports_received");
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7
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8 local xmlns_reporting = "urn:xmpp:reporting:1";
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9
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10 local function is_trusted_reporter(reporter_jid)
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11 return trusted_reporters:contains(reporter_jid);
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12 end
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13
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14 function handle_report(event)
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15 local stanza = event.stanza;
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16 local report = stanza:get_child("report", xmlns_reporting);
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17 if not report then
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18 return;
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19 end
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20 local reported_jid = report:get_child_text("jid", "urn:xmpp:jid:0")
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21 or stanza:find("{urn:xmpp:forward:0}forwarded/{jabber:client}message@from");
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22 if not reported_jid then
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23 module:log("debug", "Discarding report with no JID");
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24 return;
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25 elseif jid.host(reported_jid) ~= module.host then
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26 module:log("debug", "Discarding report about non-local user");
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27 return;
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28 end
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29
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30 local reporter_jid = stanza.attr.from;
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31 if jid.node(reporter_jid) then
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32 module:log("debug", "Discarding report from non-server JID");
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33 return;
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34 end
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35
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36 local reported_user = jid.node(reported_jid);
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37 if not um.user_exists(reported_user, module.host) then
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38 module:log("debug", "Discarding report about non-existent user");
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39 return;
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40 end
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41
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42 if is_trusted_reporter(reporter_jid) then
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43 local current_reports = reports_received:get(reported_user, reporter_jid);
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44
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45 if not current_reports then
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46 current_reports = {
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47 first = os.time();
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48 last = os.time();
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49 count = 1;
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50 };
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51 else
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52 current_reports.last = os.time();
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53 current_reports.count = current_reports.count + 1;
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54 end
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55
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56 reports_received:set(reported_user, reporter_jid, current_reports);
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57
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58 module:log("info", "Received abuse report about <%s> from <%s>", reported_jid, reporter_jid);
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59
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60 module:fire_event(module.name.."/account-reported", {
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61 report_from = reporter_jid;
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62 reported_user = reported_user;
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63 report = report;
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64 });
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65 else
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66 module:log("warn", "Discarding abuse report about <%s> from untrusted source <%s>", reported_jid, reporter_jid);
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67 end
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68
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69 -- Message was handled
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70 return true;
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71 end
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72
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73 module:hook("message/host", handle_report);