Mercurial > prosody-modules

annotate mod_muc_restrict_rooms/mod_muc_restrict_rooms.lua @ 5585:5b316088bef5

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mod_rest: Use logger of HTTP request in trunk In Prosody trunk rev c975dafa4303 each HTTP request gained its own log sink, to make it easy to log things related to each request and group those messages. Especially where async is used, spreading the request and response apart as mod_rest does with iq stanzas, this grouped logging should help find related messages.
author Kim Alvefur <zash@zash.se>
date Fri, 07 Jul 2023 00:10:37 +0200
parents 79adec50b24d
children
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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 rooms = module:shared "muc/rooms";
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6 if not rooms then
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7 module:log("error", "This module only works on MUC components!");
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8 return;
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9 end
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11 local restrict_patterns = module:get_option("muc_restrict_matching", {});
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12 local restrict_excepts = module:get_option_set("muc_restrict_exceptions", {});
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13 local restrict_allow_admins = module:get_option_boolean("muc_restrict_allow_admins", false);
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15 local function is_restricted(room, who)
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16 -- If admins can join prohibited rooms, we allow them to
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17 if restrict_allow_admins and usermanager.is_admin(who, module.host) then
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18 module:log("debug", "Admins are allowed to enter restricted rooms (%s on %s)", who, room)
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19 return nil;
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20 end
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22 -- Don't evaluate exceptions
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23 if restrict_excepts:contains(room) then
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24 module:log("debug", "Room %s is amongst restriction exceptions", room())
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25 return nil;
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26 end
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28 -- Evaluate regexps of restricted patterns
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29 for pattern,reason in pairs(restrict_patterns) do
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30 if room:match(pattern) then
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31 module:log("debug", "Room %s is restricted by pattern %s, user %s is not allowed to join (%s)", room, pattern, who, reason)
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32 return reason;
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33 end
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34 end
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35
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36 return nil
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37 end
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39 module:hook("presence/full", function(event)
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40 local stanza = event.stanza;
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41
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42 if stanza.name == "presence" and stanza.attr.type == "unavailable" then -- Leaving events get discarded
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43 return;
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44 end
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46 -- Get the room
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47 local room = jid.split(stanza.attr.to);
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48 if not room then return; end
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49
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50 -- Get who has tried to join it
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51 local who = jid.bare(stanza.attr.from)
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52
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53 -- Checking whether room is restricted
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54 local check_restricted = is_restricted(room, who)
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55 if check_restricted ~= nil then
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56 event.allowed = false;
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57 event.stanza.attr.type = 'error';
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58 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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59 end
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60 end, 10);