Irule HTTP header remove

Hi Exploitation Reseau Almerys,

you need to check the HTTP-Path (or HTTP::uri) within the

HTTP_REQUEST

event and then

set

a

$variable

with the outcome of the check (e.g. Boolean

0|1

). The

$variable

can then be used to selectively remove HTTP-Response-Headers as needed.

when HTTP_REQUEST {
    switch -glob -- [string tolower [HTTP::path]] {
        "/somepath/file.txt" {
            set remove_header 0
        }
        "/somepath/*" {
            set remove_header 1
        }
        "/somepath/*.txt" {
            set remove_header 0
        }
        "/somepath/*" {
            set remove_header 1
        }
        "/someotherpath/*" {
            set remove_header 1
        }
        "/someotherpath/file.txt" {
             Note this wont work because the previous condition was already triggered.
            set remove_header 0
        }
        default {
            set remove_header 0
        }
    }
}
when HTTP_RESPONSE {
    if { $remove_header == 1 } then {
        HTTP::header remove "Server"
        HTTP::header remove "X-Powered-By"
    }
}

Cheers, Kai