Tracking cookie create

tracking_create.pl

sub vcl_recv {
  if (req.http.Cookie ~ "mycookie=") {
    # The request does have a tracking cookie so store it temporarily
    set req.http.Tmp-Set-Cookie = req.http.Cookie;
    unset req.http.Cookie;
  } else {
    # The request doesn't have a tracking cookie so create one
    set req.http.Tmp-Set-Cookie = if(req.http.Cookie, req.http.Cookie "; ", "") "mycookie=" digest.hash_md5(now randomstr(32) client.ip);
  }
 
#FASTLY recv
}
 
 
sub vcl_deliver {
  # Send the Cookie header again if we have it
  if (req.http.Tmp-Set-Cookie) {
    set resp.http.Set-Cookie = req.http.Tmp-Set-Cookie;
  }
 
#FASTLY deliver
}