Horton

Re: [PoC] Federated Authn/z with OAUTHBEARER

Jacob Champion <jacob.champion@enterprisedb.com>

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From: Jacob Champion <jacob.champion@enterprisedb.com>
To: Wolfgang Walther <walther@technowledgy.de>
Cc: Jelte Fennema-Nio <postgres@jeltef.nl>, Christoph Berg <myon@debian.org>, Peter Eisentraut <peter@eisentraut.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: 2025-04-15T00:13:35Z
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

Attachments

On Mon, Apr 14, 2025 at 1:17 PM Jacob Champion
<jacob.champion@enterprisedb.com> wrote:
> I believe so. I'm in the middle of the .pc stuff right now; v6 should
> have the fixes as long as I don't get stuck.

Done in v6-0001. I think this is now architecturally complete, so if
reviewers are happy I can work on docs and the commit message. As a
summary:

- We provide a libpq-oauth-18.so module for shared builds, and a
corresponding .a for static builds, when OAuth is enabled.
- Platforms which cannot support the builtin flow now error out if you
request OAuth at configure time.
- When OAuth is enabled and there's no custom client flow, libpq.so
loads the module via dlopen(), which respects RPATH/LD_LIBRARY_PATH et
al. If it's not installed, OAuth doesn't continue.
- Static builds must link libpq-oauth-18.a explicitly. libpq.pc now
puts -lpq-oauth-18 in Libs.private, and libcurl in Requires.private.
- Internally, we compile separate versions of fe-auth-oauth.c to
handle the different cases (disabled, dynamic, static). This is
borrowed from src/common.
- The only new export from libpq is appendPQExpBufferVA. Other
internal symbols are shared with libpq-oauth via dependency injection.

v6-0002 is a WIP rename of the --with-libcurl option to
--with-oauth-client. I'm not sure I have all of the Meson corner cases
with auto_features figured out, but maybe it doesn't matter since it's
temporary (it targets a total of seven buildfarm animals, and once
they've switched we can remove the old name). I have added a separate
open item for this.

Thanks,
--Jacob