view mod_muc_config_restrict/README.markdown @ 5193:2bb29ece216b

mod_http_oauth2: Implement stateless dynamic client registration Replaces previous explicit registration that required either the additional module mod_adhoc_oauth2_client or manually editing the database. That method was enough to have something to test with, but would not probably not scale easily. Dynamic client registration allows creating clients on the fly, which may be even easier in theory. In order to not allow basically unauthenticated writes to the database, we implement a stateless model here. per_host_key := HMAC(config -> oauth2_registration_key, hostname) client_id := JWT { client metadata } signed with per_host_key client_secret := HMAC(per_host_key, client_id) This should ensure everything we need to know is part of the client_id, allowing redirects etc to be validated, and the client_secret can be validated with only the client_id and the per_host_key. A nonce injected into the client_id JWT should ensure nobody can submit the same client metadata and retrieve the same client_secret
author Kim Alvefur <zash@zash.se>
date Fri, 03 Mar 2023 21:14:19 +0100
parents 34fb3d239ac1
children
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---
labels:
- 'Stage-Alpha'
summary: Restrict MUC configuration options to server admins
...

Introduction
============

Sometimes, especially on public services, you may want to allow people
to create their own rooms, but prevent some options from being modified
by normal users.

For example, using this module you can prevent users from making rooms
persistent, or making rooms publicly visible.

Details
=======

You need to supply a list of options that will be restricted to admins.
Available options can vary, but the following table lists Prosody's
built-in options (as defined in XEP-0045):

  Name                              Description
  --------------------------------- -------------------------------------------
  muc\#roomconfig\_roomname         The title/name of the room
  muc\#roomconfig\_roomdesc         The description of the room
  muc\#roomconfig\_persistentroom   Whether the room should remain when empty
  muc\#roomconfig\_publicroom       Whether the room is publicly visible
  muc\#roomconfig\_changesubject    Whether occupants can change the subject
  muc\#roomconfig\_whois            Control who can see occupant's real JIDs
  muc\#roomconfig\_roomsecret       The room password
  muc\#roomconfig\_moderatedroom    Whether the room is moderated
  muc\#roomconfig\_membersonly      Whether the room is members-only
  muc\#roomconfig\_historylength    The length of the room history

Some plugins may add other options to the room config (in Prosody
0.10+), for which you will need to consult their documentation for the
full option name.

Configuration
=============

Enable the plugin on a MUC host (do not put it in your global
modules\_enabled list):

``` {.lua}
Component "conference.example.com" "muc"
modules_enabled = { "muc_config_restrict" }
muc_config_restricted = {
  "muc#roomconfig_persistentroom"; -- Prevent non-admins from changing a room's persistence setting
  "muc#roomconfig_membersonly"; -- Prevent non-admins from changing whether rooms are members-only
}
```

Compatibility
=============

  ------- --------------
  trunk   Doesn't work (uses is_admin)
  0.12    Works?
  ------- --------------