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Forum Discussion

John_Comstock's avatar
John_Comstock
Icon for Nimbostratus rankNimbostratus
Sep 13, 2006

iRule for URL Re-write

I have a requirement to rewrite the URL that external business partners connect to for both HTTP and HTTPS (will terminate SSL on the BigIP) traffic to forward to internal web sites. Can anyone direct...
application delivery
dev
devops
iRules
John_Comstock's avatar
John_Comstock
Icon for Nimbostratus rankNimbostratus
Jun 04, 2007
Our application was sending a 301 redirect back to the client with our internal url…

The iRule below addresses the 301 problem, by replacing the location if there is a 301 with the original host set in the request.

The tool I was using to test didn’t show the 301, (perhaps because the location host was the same as that originally requested) but the browser did go to the proper page.



when HTTP_REQUEST {

  set myhost [HTTP::host]

  set entry [findclass [HTTP::host] $::urlrewrite " "]

  if {$entry != ""} {

    log "Entry not null, replacing Host: [HTTP::host] with: $entry"

    HTTP::header replace Host $entry

    if {[HTTP::uri] starts_with "/"} {

      HTTP::uri http://$entry[HTTP::uri]

    }

  }

}

when HTTP_RESPONSE {

  if {[HTTP::status] contains "301"} {

    if {$myhost != ""} {

      set myuri [findstr [HTTP::header Location] ".com/" 5]

      HTTP::header replace Location https://$myhost/$myuri

    }

  }

}

Now we just need to get the rule implemented in production and tested with our vendors.

John