Re: On login trigger: take three

Andres Freund <andres@anarazel.de>

From: Andres Freund <andres@anarazel.de>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Daniel Gustafsson <daniel@yesql.se>, Greg Nancarrow <gregn4422@gmail.com>, Ivan Panchenko <wao@mail.ru>, Teodor Sigaev <teodor@sigaev.ru>, Ibrar Ahmed <ibrar.ahmad@gmail.com>, vignesh C <vignesh21@gmail.com>, Pavel Stehule <pavel.stehule@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Amit Kapila <amit.kapila16@gmail.com>, Masahiko Sawada <sawada.mshk@gmail.com>
Date: 2022-03-14T02:17:10Z
Lists: pgsql-hackers
On 2022-03-13 20:35:44 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > I was thinking that the way to use it would be to specify it as a client
> > option. Like PGOPTIONS='-c ignore_event_trigger=login' psql.
> 
> Ugh ... that would allow people (at least superusers) to bypass
> the login trigger at will, which seems to me to break a lot of
> the use-cases for the feature.  I supposed we'd want this to be a
> PGC_POSTMASTER setting for security reasons.

Shrug. This doesn't seem to add actual security to me.



Commits

  1. Fix some typos in event trigger docs

  2. Use heap_inplace_update() to unset pg_database.dathasloginevt

  3. Remove the flaky check in event_trigger_login regression test

  4. Fix instable 006_login_trigger.pl test

  5. Add support event triggers on authenticated login

  6. Add GUC for temporarily disabling event triggers

  7. Fix typo in reference to __FreeBSD__.

  8. Restore robustness of TAP tests that wait for postmaster restart.

  9. Restore the portal-level snapshot after procedure COMMIT/ROLLBACK.