Re: valid_referers dynamic hostname

Hello!

On Mon, May 20, 2013 at 02:14:02PM -0400, vlad031@binkmail.com wrote:

> Hello,
>
> Thank you for your example Maxim. This is what I've wrote in my config:
>
> set $temp "$host:$http_referer";
>
> valid_referers none blocked server_names ~\.google\. ~\.yahoo\. ~\.bing\.
> ~\.ask\. ~\.live\. ~\.googleusercontent.com\. ;
>
> if ($invalid_referer){
> set $test A ;
> }
>
> if ($temp ~* "^(.*):http?://\1") {
> set $test "${test}B";
> }

Just a side note: this statement isn't needed. Both http and
https schemes are allowed by a "https?" in the regular expression
I provided, "?" makes preceeding character option.

>
> if ($temp ~* "^(.*):https?://\1") {
> set $test "${test}C";
> }
>
> if ($test = ABC) {
> return 444 ;
> }
>
> It is always returning 444 ... what am I doing wrong?!

You probably mean to write

if ($test = A) {
return 444;
}

instead, as your initial message suggests you want to allow
requests where Referer matches Host.

--
Maxim Dounin
http://nginx.org/en/donation.html

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