Re: LISTEN filtering

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От Tom Lane
Тема Re: LISTEN filtering
Дата
Msg-id 15884.1308672471@sss.pgh.pa.us
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Ответ на LISTEN filtering  ("Greg Sabino Mullane" <greg@turnstep.com>)
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"Greg Sabino Mullane" <greg@turnstep.com> writes:
> Quick idea to toss out there: allowing an option to LISTEN to
> only 'hear' from superusers (or self).

This seems like a pretty bad idea from a security policy standpoint,
in that it would encourage use of superuser state to run ordinary
applications.

> I've got an app that uses a lot
> of listen/notify to talk to other subprocesses. However, it
> would be nice if non-superusers could not affect the behavior
> of this application: right now, anyone can issue a NOTIFY.

Anyone connected to the same database, yes.  Can't you just restrict use
of the database to trustworthy apps?

            regards, tom lane

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