selectively remove https

In the HTTP_REQUEST event on the clientside (client to BIG-IP), you can determine if the request is one you want to disable SSL for on the serverside (BIG-IP to node).

Here's an example:

when HTTP_REQUEST {
   set usessl 1
   if { [HTTP::path] starts_with "/clear" } {
      set usessl 0
   }
}
when SERVER_CONNECTED {
   if { $usessl == 0 } {
      SSL::disable
   }
}

Else, I think you could use 'clientside' to force the evaluation of HTTP::path to the clientside context and do this in one event:

when SERVER_CONNECTED {
   log local0. "Requested path: [clientside {HTTP::path}]"
   if { [clientside {HTTP::path}] starts_with "/clear" } {
      SSL::disable
   }
}

If you have multiple URI's to disable encryption for, you might want to define them in a datagroup and then check the requested URI against the datagroup list.

Aaron