301 Redirect but Adding Original URL and Referrer

[f5noob29]

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 passed as either a HTTP GET parameter or as a HTTP header, but the referrer should stay “hidden” and be passed in a HTTP header?

We'd like F5 to put the original URL and the referrer into GET parameters.

For example, a user goes to OLD-APP and clicks on help button.

OLD-APP: http://old-app.com/URI/query

help link: http://old-app.com-help/URI/query

F5 intercepts and returns HTTP 301 with the following headers:

Location: https://NEW-APP.com/redirect/?url=http%3A%2F%2Fold-app.com-help%2FURI%2Fquery&referer=http%3A%2F%2Fold-app.com%2FURI%2Fquery

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

If there is no Referrer header, then F5 can omit referrer or just use an empty value (i.e. referrer=).

We are trying to achieved this via an iRule, I've looked around and found some iRule that could potentially helped but I cant create a specific iRule for this requirements. I'd appreciate your help. TIA.

[KeesvandenBos]

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]

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]

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]

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" }
	}
}

[KeesvandenBos]

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

[wkirk]

Perfectly works...Thanks Kees.

[Mrwillbaclimon]

What about something like this?

Redirect TLS 1.1/1.2 clients & Append the incoming... - DevCentral (f5.com)