prosody-modules
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mod_restrict_xmpp/README.markdown
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mod_restrict_xmpp/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 |
| parent | 5009:459a4001c1d9 |
| child | 5791:62654f523c6a |
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--- labels: - Stage-Alpha summary: XMPP-layer access control for Prosody --- Introduction ============ This module enforces access policies using Prosody's new [roles and permissions framework](https://prosody.im/doc/developers/permissions). It can be used to grant restricted access to an XMPP account or services. This module is still in its early stages, and prone to change. Feedback from testers is welcome. At this early stage, it should not be solely relied upon for account security purposes. Configuration ============= There is no configuration, apart from Prosody's normal roles and permissions configuration. Permissions =========== `xmpp:federate` : Communicate with other users and services on other hosts on the XMPP network `xmpp:account:messages:read` : Read incoming messages `xmpp:account:messages:write` : Send outgoing messages `xmpp:account:presence:write` : Update presence for the account `xmpp:account:contacts:read`/`xmpp:account:contacts:write` : Controls access to the contact list (roster) `xmpp:account:bookmarks:read`/`xmpp:account:bookmarks:write` : Controls access to the bookmarks (group chats list) `xmpp:account:profile:read`/`xmpp:account:profile:write` : Controls access to the user's profile (e.g. vCard/avatar) `xmpp:account:omemo:read`/`xmpp:account:omemo:write` : Controls access to the user's OMEMO data `xmpp:account:blocklist:read`/`xmpp:account:blocklist:write` : Controls access to the user's block list `xmpp:account:disco:read` : Controls access to the user's service discovery information Compatibility ============= Requires Prosody trunk 72f431b4dc2c (build 1444) or later.
