annotate mod_muc_block_pm/mod_muc_block_pm.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 291a45919988
children c7e532ac6bf7
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1 local bare_jid = require"util.jid".bare;
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2 local st = require"util.stanza";
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3
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4 -- Support both old and new MUC code
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5 local mod_muc = module:depends"muc";
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6 local rooms = rawget(mod_muc, "rooms");
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7 local get_room_from_jid = rawget(mod_muc, "get_room_from_jid") or
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8 function (jid)
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9 return rooms[jid];
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10 end
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11
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12 module:hook("message/full", function(event)
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13 local stanza, origin = event.stanza, event.origin;
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14 if stanza.attr.type == "error" then
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15 return
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16 end
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17 local to, from = stanza.attr.to, stanza.attr.from;
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18 local room = get_room_from_jid(bare_jid(to));
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19 local to_occupant = room and room._occupants[to];
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20 local from_occupant = room and room._occupants[room._jid_nick[from]]
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21 if not ( to_occupant and from_occupant ) then return end
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22
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23 if from_occupant.affiliation then
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24 to_occupant._pm_block_override = true;
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25 elseif not from_occupant._pm_block_override then
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26 origin.send(st.error_reply(stanza, "cancel", "not-authorized", "Private messages are disabled"));
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27 return true;
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28 end
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29 end, 1);