public inbox for [email protected]  

help / color / mirror / Atom feed

From: Erik Wienhold <[email protected]>
To: Dominique Devienne <[email protected]>
Cc: [email protected]
Subject: Re: current_role of caller of a DEFINER function
Date: Wed, 26 Jun 2024 12:06:29 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAFCRh--0j77ueun+Ak0vRe_vi__Jks_HZjD9QbD+THR8gAWvRQ@mail.gmail.com>
References: <CAFCRh--0j77ueun+Ak0vRe_vi__Jks_HZjD9QbD+THR8gAWvRQ@mail.gmail.com>

On 2024-06-26 10:35 +0200, Dominique Devienne wrote:
> Hi. I was led to believe (by an hallucination...) that I could know
> the current_role of the caller of a DEFINER function, but after actual
> experimentation, turns out it shows the OWNER of the function, and not
> the current_role of the caller.
> 
> I foolishly thought curent_role != current_user inside the DEFINER
> function, but reading back the doc, it's clear current_role =
> current_user = user, thus that was wishful thinking. Only session_user
> is representative of the caller, and reliable (modulo SUPERUSER and
> SET AUTHORIZATION, but that's a different story and kinda normal)
> 
> So I have two questions:
> 1) Is there any way to know the current_role of the caller of a
> DEFINER function. I fear the answer is no, but better be sure from
> experts here.

Have you tried capturing current_user with a function parameter and
default value?
https://www.postgresql.org/message-id/f82f70fd-665f-6384-5e8a-987ab9e640d3%40technowledgy.de

-- 
Erik

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected], [email protected]
  Subject: Re: current_role of caller of a DEFINER function
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox