----- Markus Jelsma <markus.jelsma@openindex.io> wrote:
> Hi list,
>
> We're having an upstream server that can accept many different parameters. Most
> query string parameters can be predefined in the backend itself but some cannot
> because they are unpredictable.
>
> We'd like to configure our proxy as to only allow a set of parameters that we
> want to define in Nginx. Configuring the list in a map seems easy, but comparing
> it to the actual query parameters seems hard.
>
> I know how i can test on availability of parameters by using $args_PARAMETER
> and the if directive. But just as in the backend, we wan't to inverse the
> list. We need to define what IS allowed, not wat ISN'T allowed.
>
> Any suggestions on how to procede?

The only solution I know that doesn't require low level coding is build in perl.

--
Regards,
Valery Kholodkov

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