muc_max_occupants error

Description

Couldn’t use muc_max_occupants module until I fixed it’s code.

Current behavior

With the line (/usr/share/jitsi-meet/prosody-plugins/mod_muc_max_occupants.lua: line 11) going as local whitelist = module:get_option_set("muc_access_whitelist"); I get the following error:

2020-04-26 14:08:42 c2s555b6a155ef0     error   Traceback[c2s]: ...jitsi-meet/prosody-plugins/mod_muc_max_occupants.lua:30: attempt to index upvalue 'whitelist' (a nil value)
stack traceback:
        ...jitsi-meet/prosody-plugins/mod_muc_max_occupants.lua:30: in function '?'
        /usr/lib/prosody/util/events.lua:78: in function </usr/lib/prosody/util/events.lua:74>
        (tail call): ?
        (tail call): ?
        /usr/lib/prosody/modules/muc/muc.lib.lua:406: in function </usr/lib/prosody/modules/muc/muc.lib.lua:388>
        (tail call): ?
        /usr/lib/prosody/util/events.lua:78: in function </usr/lib/prosody/util/events.lua:74>
        (tail call): ?
        /usr/lib/prosody/core/stanza_router.lua:187: in function 'core_post_stanza'
        /usr/lib/prosody/core/stanza_router.lua:135: in function 'core_process_stanza'
        /usr/lib/prosody/modules/mod_c2s.lua:254: in function 'func'
        /usr/lib/prosody/util/async.lua:90: in function </usr/lib/prosody/util/async.lua:88>

Expected Behavior

Limiting the number of conference participants

Possible Solution

With the line going as local whitelist = module:get_option_set("muc_access_whitelist",{}); it works just fine. I suggest you to fix the module code. I can’t give you a PR since I don’t have an acces to printer and scaner currently so can’t submit this consent paper of yours.

Environment details

:~$ sudo prosodyctl about
Prosody trunk nightly build 747 (2017-02-19, 428d4abee723)

# Prosody directories
Data directory:     /var/lib/prosody
Config directory:   /etc/prosody
Source directory:   /usr/lib/prosody
Plugin directories:
  /usr/share/jitsi-meet/prosody-plugins/
  /usr/lib/prosody/modules/


# Lua environment
Lua version:                    Lua 5.1

Lua module search paths:
  /usr/lib/prosody/?.lua
  /usr/local/share/lua/5.1/?.lua
  /usr/local/share/lua/5.1/?/init.lua
  /usr/local/lib/lua/5.1/?.lua
  /usr/local/lib/lua/5.1/?/init.lua
  /usr/share/lua/5.1/?.lua
  /usr/share/lua/5.1/?/init.lua

Lua C module search paths:
  /usr/lib/prosody/?.so
  /usr/local/lib/lua/5.1/?.so
  /usr/lib/x86_64-linux-gnu/lua/5.1/?.so
  /usr/lib/lua/5.1/?.so
  /usr/local/lib/lua/5.1/loadall.so

LuaRocks:               Not installed

# Lua module versions
lfs:            LuaFileSystem 1.6.3
libevent:       2.1.8-stable
luaevent:       0.4.4
lxp:            LuaExpat 1.3.0
socket:         LuaSocket 3.0-rc1
ssl:            0.6

[pitfisher]

@bastischubert Tone of your comment isn’t nice at all. Are you compensating something with that kind of behavior? Now I found out that there was a typo in my config. Therefore I’m closing this issue.

[lebreRafael]

@petrohiv Thank you so much. My prosody version was ok. I fixed this by adding muc_access_whitelist = {}