prosody
9019bc4c9a5a
plugins/muc/lock.lib.lua

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plugins/muc/lock.lib.lua @ 6828:9019bc4c9a5a

MUC: Prevent double replies when MUC affiliation/role change requests fail.
author Lance Stout <lancestout@gmail.com>
date Thu, 17 Sep 2015 13:02:09 -0700
parent 6329:6b3eb1611587
child 7407:e465b584547b
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rev   line source
6206
f937bb5c83c3 plugins/muc: Move locking to seperate module
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 -- Copyright (C) 2014 Daurnimator
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
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7 -- COPYING file in the source package for more information.
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8 --
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9
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6b3eb1611587 mod_muc: Import util.stanza into the config handler modules that need it. Fixes #432.
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10 local st = require "util.stanza";
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11
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12 local lock_rooms = module:get_option_boolean("muc_room_locking", false);
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13 local lock_room_timeout = module:get_option_number("muc_room_lock_timeout", 300);
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14
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15 local function lock(room)
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16 module:fire_event("muc-room-locked", {room = room;});
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17 room.locked = true;
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18 end
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19 local function unlock(room)
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20 module:fire_event("muc-room-unlocked", {room = room;});
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21 room.locked = nil;
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22 end
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23 local function is_locked(room)
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24 return not not room.locked;
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25 end
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26
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27 if lock_rooms then
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28 module:hook("muc-room-pre-create", function(event)
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29 -- Older groupchat protocol doesn't lock
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30 if not event.stanza:get_child("x", "http://jabber.org/protocol/muc") then return end
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31 -- Lock room at creation
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32 local room = event.room;
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33 lock(room);
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34 if lock_room_timeout and lock_room_timeout > 0 then
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35 module:add_timer(lock_room_timeout, function ()
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36 if is_locked(room) then
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37 room:destroy(); -- Not unlocked in time
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38 end
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39 end);
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40 end
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41 end, 10);
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42 end
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43
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44 -- Don't let users into room while it is locked
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45 module:hook("muc-occupant-pre-join", function(event)
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46 if not event.is_new_room and is_locked(event.room) then -- Deny entry
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47 event.origin.send(st.error_reply(event.stanza, "cancel", "item-not-found"));
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48 return true;
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49 end
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50 end, -30);
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51
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52 -- When config is submitted; unlock the room
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53 module:hook("muc-config-submitted", function(event)
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54 if is_locked(event.room) then
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55 unlock(event.room);
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56 end
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57 end, -1);
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58
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59 return {
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60 lock = lock;
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61 unlock = unlock;
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62 is_locked = is_locked;
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63 };