Irule help to block HTTP request if the HTTP Referer header value is null or with wrong domain

Hello aaa,

I have tried the below irule and it is not working. As far I know the the flow logic is correct and for some reason this irule is not working.

Could you please correct me if I' missing something here?

when HTTP_REQUEST

{

 set referer [string tolower [HTTP::header value "Referer"]]

     if {($referer ne "") && !($referer contains ".abc.com")}

     {

     HTTP::respond 400 content "Bad Request" "Content-Type" "text/html"

     }

 }

Regards,

Thiyagu

Thanks a lot eaa.

As a plan B I have also worked on the below iRULE. Could you please correct me if I' missing something ?

------------------------------------------------

when HTTP_REQUEST {

 switch -glob [HTTP::header "Referer"] {

   "*.abc.com/*" {

     # Allow Request to go through...

   }

   "" {

     HTTP::respond 400 content "Bad Request" Content-Type "text/html"

   }

   default {

    HTTP::respond 400 content "Bad Request" Content-Type "text/html"

   }

 }

}

------------------------------------------------------------

Thanks a lot in advance

Regards,

Thiyagu