Forum Discussion

pvrobinsontx2_2's avatar
pvrobinsontx2_2
Icon for Nimbostratus rankNimbostratus
Nov 12, 2015

iRule redirect based on uri or user-agent match logic.

Hello, looking for some direction here. I am trying create a rule which will match a specific set of uri and redirect if true to a prefered site and quit processing the irule. If the uri doesn't ma...
-glob
application delivery
devops
irule
iRules
LTM
switch
Stanislas_Piro2's avatar
Stanislas_Piro2
Icon for Cumulonimbus rankCumulonimbus
Nov 12, 2015

Hi,

the irule may work when :

  • URI doesn't match and user agent doesn't match
  • URI match and user agent doesn't match
  • URI doesn't match and user agent match

But the irule may cause a tcl error when both URI and user agent match

add a 

return
command after each 
HTTP::redirect
to leave irule.

use 

HTTP::path
instead of 
HTTP::uri
in switch... 
HTTP::uri
may contain query string which can be dynamic.

when HTTP_REQUEST { 
    switch -glob [string tolower [HTTP::path]] {
        "/about_news" -
        "*.pdf" {
            HTTP::redirect "https://www.mysite.com[HTTP::uri]" 
            return
        }
        default {
            if {[string tolower [HTTP::header User-Agent]] contains "mobile"} {
                HTTP::redirect "https://www.myothersite.com[HTTP::uri]"  
                return
            }
        }
    }
}