Horton

Re: [PoC] Federated Authn/z with OAUTHBEARER

Jacob Champion <jchampion@timescale.com>

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From: Jacob Champion <jchampion@timescale.com>
To: "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Cc: "hlinnaka@iki.fi" <hlinnaka@iki.fi>, "michael@paquier.xyz" <michael@paquier.xyz>, "smilingsamay@gmail.com" <smilingsamay@gmail.com>, Stephen Frost <sfrost@snowman.net>, mahendrakar s <mahendrakarforpg@gmail.com>, Andrey Chudnovsky <achudnovskij@gmail.com>
Date: 2023-06-29T16:28:24Z
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 5/19/23 15:01, Jacob Champion wrote:
> But I don't want to
> gold-plate it if this overall approach is unacceptable. So, questions
> for the gallery:
> 
> 1) Would starting up a background thread (pooled or not) be acceptable
> on Windows? Alternatively, does anyone know enough Winsock deep magic to
> combine multiple pending events into one (selectable!) socket?
> 
> 2) If a background thread is acceptable on one platform, does it make
> more sense to use one on every platform and just have synchronous code
> everywhere? Or should we use a threadless async implementation when we can?
> 
> 3) Is the current conn->async_auth() entry point sufficient for an
> application to implement the Microsoft flows discussed upthread?
> 
> 4) Would we want to try to require a new enough cURL/OpenSSL to avoid
> thread safety problems during initialization, or do we need to introduce
> some API equivalent to PQinitOpenSSL?
> 
> 5) Does this maintenance tradeoff (full control over the client vs. a
> large amount of RFC-governed code) seem like it could be okay?

There was additional interest at PGCon, so I've registered this in the
commitfest.

Potential reviewers should be aware that the current implementation
requires Linux (or, more specifically, epoll), as the cfbot shows. But
if you have any opinions on the above questions, those will help me
tackle the other platforms. :D

Thanks!
--Jacob