Question on Rewrite / If statements

[Resicow]

Hi Igor,

Thanks for your response.

We have lots of virtual hosting domains setup, using $host to point to 
the correct root directory. This way we can add / subtract domains 
without touching the nginx config.

Similar to the "Wildcard Subdomains in a Parent Folder" at 
http://wiki.nginx.org/NginxVirtualHostExample

This has been working perfectly for us, however we want to stop leeching 
by checking the HTTP Referer.

Since the configuration is "virtual", only the $host variable actually 
"knows" the name of the vhost.

So we want to test to ensure that either $http_referer contains $host 
(using an if statement), or using the HTTP Referer module with something 
like this:

valid_referers none blocked $host;

Can you think of anyway to have nginx test two variables in this 
fashion? Because of our setup, it is not possible to manually enter 
these values in the config file, or manually setup a vhost for each domain.

Thanks,

John





Igor Sysoev wrote:
> On Wed, Sep 16, 2009 at 08:03:26PM -0500, Resicow wrote:
>
>   
>> Hello,
>>
>> I have learned that the http_referer module does *not* support variables.
>>
>> I am trying to work around this with if / rewrite statements, but may 
>> have run into the same issue.
>>
>> How can I make this work?
>>
>> set $myvar mydomain.com;
>> if ($http_referer ~* $myvar) {
>> do something
>> }
>>
>> When I run that, it always returns false. However this works:
>>
>> if ($http_referer ~* mydomain.com) {
>> do something
>> }
>>
>> It appears that the if statement doesn't evaluate the variable. Is there 
>> anyway around this?
>>     
>
> Yes, "if" is ugly hack and it does not evaluate a right part of expression.
>
> What task do you want to resolve using $http_referer ?
>
>
>