Re: [PoC] Federated Authn/z with OAUTHBEARER

Jacob Champion <jacob.champion@enterprisedb.com>

From: Jacob Champion <jacob.champion@enterprisedb.com>
To: Peter Eisentraut <peter@eisentraut.org>
Cc: Christoph Berg <myon@debian.org>, Andres Freund <andres@anarazel.de>, Tom Lane <tgl@sss.pgh.pa.us>, Bruce Momjian <bruce@momjian.us>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Daniel Gustafsson <daniel@yesql.se>, Thomas Munro <thomas.munro@gmail.com>, Nazir Bilal Yavuz <byavuz81@gmail.com>, Antonin Houska <ah@cybertec.at>
Date: 2025-04-08T21:32:09Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. meson: Fix install-quiet after clean

  2. oauth: Run Autoconf tests with correct compiler flags

  3. Link libpq with libdl if the platform needs that.

  4. Doc: correct spelling of meson switch.

  5. oauth: Correct SSL dependency for libpq-oauth.a

  6. oauth: Fix Autoconf build on macOS

  7. oauth: Move the builtin flow into a separate module

  8. Remove a stray "pgrminclude" annotation

  9. oauth: Simplify copy of PGoauthBearerRequest

  10. oauth: Improve validator docs on interruptibility

  11. oauth: Disallow synchronous DNS in libcurl

  12. oauth: Fix postcondition for set_timer on macOS

  13. oauth: Use IPv4-only issuer in oauth_validator tests

  14. Work around OAuth/EVFILT_TIMER quirk on NetBSD.

  15. oauth: Fix incorrect const markers in struct

  16. Add missing entry to oauth_validator test .gitignore

  17. cirrus: Temporarily fix libcurl link error

  18. Add support for OAUTHBEARER SASL mechanism

  19. libpq: Handle asynchronous actions during SASL

  20. require_auth: prepare for multiple SASL mechanisms

  21. Move PG_MAX_AUTH_TOKEN_LENGTH to libpq/auth.h

  22. Make SASL max message length configurable

  23. jsonapi: fully initialize dummy lexer

  24. common/jsonapi: support libpq as a client

  25. Remove fe_memutils from libpgcommon_shlib

  26. Revert ECPG's use of pnstrdup()

  27. Explicitly require password for SCRAM exchange

  28. Refactor SASL exchange to return tri-state status

On Mon, Apr 7, 2025 at 9:41 AM Jacob Champion
<jacob.champion@enterprisedb.com> wrote:
> > Not sure, the code looks correct at first glance.  However, you could
> > also just keep the libpq-oauth strings in the libpq catalog.  There
> > isn't really a need to make a separate one, since the versions you end
> > up installing are locked to each other.  So you could for example in
> > libpq's nls.mk just add
> >
> > ../libpq-oauth/oauth-curl.c
> >
> > etc. to the files.
>
> Oh, that's an interesting idea. Thanks, I'll give it a try.

A consequence of this is that our copy of libpq_binddomain isn't using
the same mutex as libpq's copy to protect the "libpq-18" message
domain. We could discuss whether or not it matters, since we don't
support Windows, but it doesn't feel architecturally sound to me. If
we want to reuse the same domain, I think the module should be using
libpq's libpq_gettext(). (Which we could do, again through the magic
of dependency injection.)

> > Maybe it would also make sense to make libpq-oauth a subdirectory of the
> > libpq directory instead of a peer.
>
> Works for me.

It does not, however, work for our $(recurse) setup in the makefiles
-- a shared library depending on a parent directory's shared library
leads to infinite recursion, with the current tools -- so I'll keep it
at the current directory level for now.

Thanks,
--Jacob