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301 Redirect but Adding Original URL and Referrer

f5noob29
Altocumulus
Altocumulus

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.

6 REPLIES 6

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

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.

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 } }

 

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" } } }

 

 

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

Perfectly works...Thanks Kees.