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annotate mod_muc_require_tos/mod_muc_require_tos.lua @ 5173:460f78654864

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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 59f53cf66573
children
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1 local jid = require "util.jid";
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2 local id = require "util.id";
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3 local st = require "util.stanza";
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4
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5 local quick_response_ns = "urn:xmpp:tmp:quick-response";
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6 local welcome_message = module:get_option_string("tos_welcome_message");
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7 local yes_message = module:get_option_string("tos_yes_message");
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8 local no_message = module:get_option_string("tos_no_message");
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9
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10 module:hook("muc-occupant-session-new", function(event)
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11 local origin = event.origin;
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12 local room = event.room;
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13 local occupant = event.occupant;
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14 local nick = occupant.nick;
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15 module:log("debug", "%s joined %s (%s)", nick, room, origin);
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16 if occupant.role == "visitor" then
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17 local message = st.message({
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18 type = "groupchat",
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19 to = occupant.nick,
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20 from = room.jid,
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21 id = id.medium(),
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22 ["xml:lang"] = "en",
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23 }, welcome_message)
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24 :tag("response", { xmlns = quick_response_ns, value = "yes", label = "I accept." }):up()
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25 :tag("response", { xmlns = quick_response_ns, value = "no", label = "I decline." }):up();
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26 origin.send(message);
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27 end
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28 end, 19);
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29
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30 module:hook("muc-occupant-groupchat", function(event)
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31 local occupant = event.occupant;
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32 if occupant == nil or occupant.role ~= "visitor" then
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33 return;
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34 end
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35 local origin = event.origin;
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36 local room = event.room;
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37 local stanza = event.stanza;
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38 -- Namespace must be nil instead of "jabber:client" here.
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39 local body = stanza:get_child_text("body", nil);
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40 module:log("debug", "%s replied %s", occupant.nick, body);
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41 if body == "yes" then
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42 room:set_affiliation(true, occupant.bare_jid, "member", "Agreed to the TOS.");
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43 origin.send(st.reply(stanza):body(yes_message, { ["xml:lang"] = "en" }));
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44 elseif body == "no" then
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45 origin.send(st.reply(stanza):body(no_message, { ["xml:lang"] = "en" }));
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46 room:set_role(true, occupant.nick, "none", "Declined the TOS.");
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47 end
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48 end, 51); -- Priority must be > 50, <forbidden/> is sent at this priority.