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annotate mod_poke_strangers/mod_poke_strangers.lua @ 2044:06faf7a149e3

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mod_poke_strangers: Log details about JIDs that look like they are spamming.
author Thijs Alkemade <me@thijsalkema.de>
date Fri, 05 Feb 2016 11:23:13 +0100
parents
children 0aa8aa6cdb1b
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2044
06faf7a149e3 mod_poke_strangers: Log details about JIDs that look like they are spamming.
Thijs Alkemade <me@thijsalkema.de>
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1 local st = require"util.stanza";
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2 local jid_split = require "util.jid".split;
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3 local jid_bare = require "util.jid".bare;
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4 local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
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5 local uuid_generate = require "util.uuid".generate;
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6 local set = require "util.set";
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7
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8 local recently_queried = set.new();
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9
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10 function check_subscribed(event)
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11 local stanza = event.stanza;
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12 local local_user_jid = stanza.attr.to;
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13 local to_user, to_host, to_resource = jid_split(local_user_jid);
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14 local stranger_jid = stanza.attr.from;
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15
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16 if recently_queried:contains(stranger_jid) then
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17 module:log("debug", "Not re-poking " .. stranger_jid);
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18 return nil;
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19 end
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20
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21 local from_jid = jid_bare(stranger_jid);
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22
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23 if to_user and not is_contact_subscribed(to_user, to_host, from_jid) then
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24 if to_resource and stanza.attr.type == "groupchat" then
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25 return nil;
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26 end
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27
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28 recently_queried:add(stranger_jid);
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29
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30 local version_id = uuid_generate();
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31
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32 module:hook("iq-result/host/" .. version_id, function (event)
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33 module:log("info", "Stranger " .. stranger_jid .. " version: " .. tostring(event.stanza));
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34 return true;
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35 end);
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36
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37 module:send(st.iq({ type = "get", to = stranger_jid, from = to_host, id = version_id }):query("jabber:iq:version"));
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38
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39
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40 local disco_id = uuid_generate();
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41
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42 module:hook("iq-result/host/" .. disco_id, function (event)
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43 module:log("info", "Stranger " .. stranger_jid .. " disco: " .. tostring(event.stanza));
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44 return true;
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45 end);
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46
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47 module:send(st.iq({ type = "get", to = stranger_jid, from = to_host, id = disco_id }):query("http://jabber.org/protocol/disco#info"));
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48 end
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49
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50 return nil;
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51 end
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52
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53 module:hook("message/bare", check_subscribed, 225);
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54 module:hook("message/full", check_subscribed, 225);
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55 -- Not hooking iqs, as that could turn into infinite loops!