Re: View permissions in 7.1

From: Lieven Van Acker <lieven(at)elisa(dot)be>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-general(at)postgresql(dot)org
Subject: Re: View permissions in 7.1
Date: 2001-05-03 21:41:03
Message-ID: 3AF1D06E.2E5F4A28@elisa.be
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> Okay, the example you sent me off-list turns out to exhibit one bug
> and one not-yet-implemented feature. There is a bug in permissions
> checking for insert/update/delete rules (any references therein to
> NEW or OLD should be checked against the rule owner, not the calling
> user). A patch for that is attached.

Thanks, I'll apply it.

> However, you were also expecting
> that an SQL function call would provide "setuid" behavior, and it
> doesn't. (I believe changing that is on the TODO list.) In the
> meantime, you'd need to replace the current_adm() function call in your
> adm_base view rules with explicit subselects, so that the accesses to
> the "users" table are checked against the rule owner rather than the
> calling user.

Well, in fact, -at this point - I don't need setuid, because the function current_adm() has to lookup the effective uid of the calling
user. The point is I want to filter the records depending on the uid of the user calling the top-level view. So as I can understand,
views that are called by other views run still within the same session - thus returning the effective uid, right?

Kind Regards,

Lieven.

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