iRule check for user-agent and set cookie

Hi htuyela, you syntax in the if looks wrong (sorry, i have not bigip close to me to try). the curly brace is closed before the second part of the condition in the if and you cannot test multiple options in the same condition, and the square bracket need to be closed for the string tolower function:

if {([string tolower [HTTP::header User-Agent]] contains "MSIE6" or "MSIE7" or "MSIE8"}) and (not [HTTP::cookie] exists "test")}

it should be like this

if { ([string tolower [HTTP::header User-Agent]] contains "MSIE6"]) and (not [HTTP::cookie] exists "test")}

if you want to test multiple options for the brworser, then i would recommend you to test the existence of the cookie first, and then iterate with a "switch" command, the browser types.

Does that make sense ?

sorry, i was too quick. The "square bracket was ok" ;-)

it should be like this:

if { ([string tolower [HTTP::header User-Agent]] contains "MSIE6") and (not ([HTTP::cookie] exists "test"))}

Also if you are using "string tolower" i think the comparison string should be in lowercase as well. something like this.

if {([string tolower [HTTP::header User-Agent]] contains "msie6") and (not ([HTTP::cookie] exists "test"))}

thank you for the reply, unfortunately, this did not help. I'm progressing slowly, as the suggestion on using the switch syntax made me try this :

when HTTP_REQUEST {
 switch -glob [HTTP::header value "User-Agent"] {
    "*MSIE 6*" -
    "*MSIE 7*" -
    "*MSIE 8*" {
 switch -glob [HTTP::cookie exists "test"] ne ""
    HTTP::redirect "http://test-lab.foo.com:9610/CG510_APR_RedirectCapriURL/"} 
      default {
      pool site-10.130.14.98_29710
    }
  }
}

This rule is accepted and there is a difference in testing using IE & Mozilla, so the browser selection seems to work. I enabled cooking persistence on the VS with a cookie named test. However, that did not help. To me, it looks like the iRule is not able to read the cookie.

regards,

Hans

Try this:

when HTTP_REQUEST {
    switch -glob [HTTP::header value "User-Agent"] {
        "*MSIE 6*" -
        "*MSIE 7*" -
        "*MSIE 8*" {
            if { not ( [HTTP::cookie exists "test"] ) } {
                HTTP::redirect "http://test-lab.foo.com:9610/CG510_APR_RedirectCapriURL/"
            } else {
                 what do you do if the cookie exists?
            }
        default {
            pool site-10.130.14.98_29710
        }
    }
}

Thanks Kevin, unfortunately, that rule also gives me errors. Meanwhile, I decided to drop the requiemenent on the cooke, and the browser selection alone works fine, so I'm good now.

thank you for your help on this.