prosody-modules
8474a3b80200
mod_muc_access_control/mod_muc_access_control.lua

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mod_muc_access_control/mod_muc_access_control.lua @ 5160:8474a3b80200

mod_firewall: Fix 'is_admin' internal dependency rule #1797 (thanks diane) Looks like the boolean logic was inverted here. Instead, for now, simply check if is_admin is there. It is deprecated in trunk and was briefly removed before being brought back with a 'deprecated' warning as part of the new roles and permissions work. Making this dependency conditioned on the existence of the underlying function should make it work until it actually goes away for real.
author Kim Alvefur <zash@zash.se>
date Fri, 27 Jan 2023 23:06:25 +0100
parent 3024:f54c80404ad3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1954
050cd7b6fa96 mod_muc_access_control: Module to allow restricting rooms to a list of JIDs, which can include domains
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1 local st = require "util.stanza";
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2 local jid = require "util.jid";
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3 local nodeprep = require "util.encodings".stringprep.nodeprep;
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4
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5 local unprepped_access_lists = module:get_option("muc_access_lists", {});
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6 local access_lists = {};
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7
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8 -- Make sure all input is prepped
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9 for unprepped_room_name, unprepped_list in pairs(unprepped_access_lists) do
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10 local prepped_room_name = nodeprep(unprepped_room_name);
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11 if not prepped_room_name then
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12 module:log("error", "Invalid room name: %s", unprepped_room_name);
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13 else
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14 local prepped_list = {};
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15 for _, unprepped_jid in ipairs(unprepped_list) do
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16 local prepped_jid = jid.prep(unprepped_jid);
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17 if not prepped_jid then
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18 module:log("error", "Invalid JID: %s", unprepped_jid);
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19 else
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20 prepped_list[prepped_jid] = true;
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21 end
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22 end
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23 access_lists[prepped_room_name] = prepped_list;
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24 end
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25 end
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26
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27 local function is_restricted(room, who)
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28 local allowed = access_lists[room];
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29
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30 if allowed == nil or allowed[who] or allowed[select(2, jid.split(who))] then
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31 return nil;
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32 end
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33
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34 return "forbidden";
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35 end
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36
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37 module:hook("presence/full", function(event)
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38 local stanza = event.stanza;
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39
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40 if stanza.name == "presence" and stanza.attr.type == "unavailable" then -- Leaving events get discarded
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41 return;
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42 end
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43
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44 -- Get the room
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45 local room = jid.split(stanza.attr.to);
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46 if not room then return; end
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47
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48 -- Get who has tried to join it
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49 local who = jid.bare(stanza.attr.from)
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50
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51 -- Checking whether room is restricted
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52 local check_restricted = is_restricted(room, who)
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53 if check_restricted ~= nil then
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54 event.allowed = false;
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55 event.stanza.attr.type = 'error';
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56 return event.origin.send(st.error_reply(event.stanza, "cancel", "forbidden", "You're not allowed to enter this room: " .. check_restricted));
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57 end
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58 end, 10);