iRule to match http referer to be Null

Currently www.abc.com/login.html is getting redirected to www.abc.com/private/login.html as per the code.

 

 

www.abc.com/private/login.html has header referer enabled and set is to www.abc.com/login.html

 

 

We have one authentication server in between which matches "/private/" in the uri and if matches the keyword 'private' then it will skip the authentication process.

 

 

So if request are coming directly to www.abc.com/private/login.html, it is not authenticating with the authentication server.

 

 

We need to place a redirect where it will match the http referer as null and will only then redirect to "www.abc.com/login.html", which again as per the code will authenticate with the authentication server and will finally redirect to "www.abc.com/private/login.html

 

 

Any one has any idea on how to achieve this.

 

 

Thanks in advance.

 

 

 

Thanks,

 

KD.