Forum Discussion

Altocumulus

Jan 21, 2021

301 Redirect but Adding Original URL and Referrer

Old website will be decommissioned and we want users that would access the old site to be redirected but with the original URL be added and a referrer in the header. Can the original URL can be passe...

MVP

Hi,

Could you give this a try:

when HTTP_REQUEST { 
 HTTP::respond 301 Location "https://NEW-APP.com/redirect/?url=http://[HTTP::host][HTTP::uri]" Referer "http://[HTTP::host][HTTP::uri]"
}

Cheers,

Kees

f5noob29

Altocumulus

Jan 27, 2021

Thanks Kees.

I got it to work but app owner says that they are seeing below,

Location: https://https://NEW-APP.com/redirect ?url=http://old-app.com-help/URI/URI1/URI2/URI3

Instead of this,

Location: https://NEW-APP.com /redirect/?url=http%3A%2F%2Fold-app.com%2FURI%2FURI1%2FURI2%2FURI3

They also want to have a cache-control header

Cache-Control: no-cache, no-store, must-revalidate, max-age=0

Also the referrer does not seem to work as F5 doesn't include the referrer in the redirect URL.

TIA.

KeesvandenBos

MVP

Jan 28, 2021

Hi,

Can you test this irule?

when HTTP_REQUEST {
set uri [URI::encode [HTTP::uri]]
set host [URI::encode [HTTP::host]]
set referer [URI::encode [ HTTP::header Referer ]] 
	if { [string tolower [HTTP::uri]] starts_with "/uri/"} {
	  HTTP::respond 301 Location "https://NEW-APP.com/redirect/?url=http://$host$uri\_\_referrer=$referer\&[HTTP::query]" Cache-Control "no-store, no-cache, must-revalidate, max-age=0"
	  
	}
}

Cheers,

Kees

KeesvandenBos

MVP

Jan 27, 2021

Hi TIA,

Can you post the irule here?

Cache control header is not a request but a response header. So this can not be included in a redirect.

You need separate code in the irule:

when HTTP_RESPONSE {
   if { [HTTP::header value Content-Type] contains "application/pdf" } {
      HTTP::header replace Pragma public
      HTTP::header replace Cache-Control public
   }
   elseif { [HTTP::header value Content-Type] contains "application/vnd.ms-excel" } {
      HTTP::header replace Pragma public
      HTTP::header replace Cache-Control public
   }
   elseif { [HTTP::header value Content-Type] contains "application/msword" } {
      HTTP::header replace Pragma public
      HTTP::header replace Cache-Control public }
   else {
      return
   }
}

f5noob29

Altocumulus

Jan 27, 2021

Hi,

This is what i currently have but it does not seem to be working. I used the iRule that you suggested but ended up modifying it as it is not working according to their requirements and so that's the end result.

when HTTP_REQUEST {
set uri [URI::encode [HTTP::uri]]
set host [URI::encode [HTTP::host]]
set referer [URI::encode [ HTTP::header Referer ]]
 
	if { [string tolower [HTTP::uri]] starts_with "/URI/"} {
	  HTTP::respond 301 Location "https://NEW-APP.com/redirect/?url=http://$(host)$(uri)__referrer=${referer}&[HTTP::query]" { HTTP::header replace "Cache-Control" "no-store, no-cache, must-revalidate, max-age=0" }
	}
}