Re: [PoC] Federated Authn/z with OAUTHBEARER

Daniel Gustafsson <daniel@yesql.se>

From: Daniel Gustafsson <daniel@yesql.se>
To: Jacob Champion <jacob.champion@enterprisedb.com>
Cc: Antonin Houska <ah@cybertec.at>, Peter Eisentraut <peter@eisentraut.org>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2024-10-28T13:24:00Z
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 25 Oct 2024, at 20:22, Jacob Champion <jacob.champion@enterprisedb.com> wrote:

> I have combed almost all of Daniel's feedback backwards into the main
> patch (just the new bzero code remains, with the open question
> upthread),

Re-reading I can't see a vector there, I guess I am just scarred from what
seemed to be harmless leaks in auth codepaths and treat every bit as
potentially important.  Feel free to drop from the patchset for now.

> Next up is, hopefully, url-encoding. I hadn't realized what an
> absolute mess that would be [1].

Everything and anything involving urls is a hot mess =/

Looking more at the patchset I think we need to apply conditional compilation
of the backend for oauth like how we do with other opt-in schemes in configure
and meson.  The attached .txt has a diff for making --with-oauth a requirement
for compiling support into backend libpq.

--
Daniel Gustafsson