Getting cookie value and using switch

Hello,

You can try first to log need_cookie variable.

log local0. "need_cookie : $need_cookie"

maybe your variable is not initialized.

I think you should have a default {} in your switch commands

Here's the rule with the correct braces and formatted better for readability;

when HTTP_REQUEST {
 if { not [HTTP::cookie exists "Data_Locale"] } {

  set need_cookie 1 }
  set cookie_local [HTTP::cookie value "Data_Locale"]

   switch $cookie_local {
    "www1" {
     set need_cookie 0 }
   }
 }
}

when HTTP_RESPONSE {
 switch $need_cookie {
  "0" {
   HTTP::cookie expires "Data_Locale" 1200 relative }
  "1" {
   HTTP::cookie insert name "Data_Locale" value "www1" }
 }
}

I took into account the possibility of the variable not being initialized as well as not having a default switch. I re-wrote the rule as follows.

when HTTP_REQUEST {
set cookie_local [HTTP::cookie value Data_Locale]
    switch $cookie_local
    {
        www1
        {
        set need_cookie 0
        }
        default
        {
        set need_cookie 1
        }
    }
}
when HTTP_RESPONSE {
    switch $need_cookie
    {
        0
        {
        HTTP::cookie expires Data_Locale 1200 relative
        }
        1
        {
        HTTP::cookie insert name Data_Locale value www1
        }
    }
}

I am again running into the issue. It creates the cookie, but it will still not update the cookie upon a request. Is it something in my set variable that is causing issues?

Think I missed something;

when HTTP_REQUEST {
 if { not [HTTP::cookie exists "Data_Locale"] } {
  set need_cookie 1 }

 else {
  set cookie_local [HTTP::cookie value "Data_Locale"]

   switch $cookie_local {
    "www1" {
      set need_cookie 0 }
   }
 }
}

when HTTP_RESPONSE {
 switch $need_cookie {
  "0" {
   HTTP::cookie expires "Data_Locale" 1200 relative }
  "1" {
   HTTP::cookie insert name "Data_Locale" value "www1" }
 }
}

OK, so removed else, put in a 'return' so that when the 'if' statement matches it exits after the variable is set. What do you want to do if there is no match with the if or switch?

when HTTP_REQUEST {
 if { not [HTTP::cookie exists "Data_Locale"] } {
  set need_cookie 1 
  return }

  set cookie_local [HTTP::cookie value "Data_Locale"]

   switch $cookie_local {
    "www1" {
      set need_cookie 0 }
   }
 }

Hmmm. The wiki states 'Applies to Version 0 cookies only' - no real idea what that means but perhaps a cause?

I think you need to modify your cookie insert code and include a version perhaps?:

HTTP::cookie insert name  value  [path ] [domain ] [version <0 | 1 | 2>]

If that's the case I'd suggest you use HTTP::header instead to insert and update the cookie.

Hmmm, v11 should really be just fine. Perhaps its because you don't set an expiry when you first create the cookie?

I'm thinking, why not just insert/replace the cookie on every response?

It looks like after some testing, simply insert/replace the cookie gets the desired result. Here is the finished rule that demonstrates it operates, and that the switches are working properly.

when HTTP_REQUEST {
if {not [HTTP::cookie exists Data_Locale]}
    {set need_cookie 1}
set cookie_local [HTTP::cookie value Data_Locale]
switch $cookie_local
{
    www1
    {
    set need_cookie 0
    }
    www2
    {
    set need_cookie 3
    }
    www3
    {
    set need_cookie 1
    }
}
}

when HTTP_RESPONSE {
switch $need_cookie
{
    0
    {
    HTTP::cookie insert name Data_Locale value www2
    HTTP::cookie expires Data_Locale 1200 relative
    }
    1
    {
    HTTP::cookie insert name Data_Locale value www1
    HTTP::cookie expires Data_Locale 1200 relative
    }
    3
    {
    HTTP::cookie insert name Data_Locale value www3
    HTTP::cookie expires Data_Locale 1200 relative
    }
}
}