applescript to toggle vpn via tunnelblick

tunnelblick_toggle.applescript

set toggle to %TOGGLE%
set conf_name to "%NAME%"
set conf_user to "%USER%"
set conf_pass to "%PASS%"
set conf_index to -1

if application "Tunnelblick" is running then
else
  tell application "Tunnelblick" to activate
end if

tell application "Tunnelblick"
  -- finding index of configuration in Tunnelblick (applescript sucks)
  set all_conf_name to (get name of configurations)
  repeat with i from 1 to length of all_conf_name
    set curr_conf to item i of all_conf_name
    if curr_conf is conf_name then
      set conf_index to i
    end if
  end repeat
  
  if conf_index is -1 then
    return "configuration not found"
  else
    if toggle
      delete all credentials for conf_name
      save username conf_user for conf_name
      if (state of configuration conf_index) is "EXITING" then
        save password conf_pass for conf_name
        connect conf_name
        return "CONNECTING"
      else if (state of configuration conf_index) is "CONNECTED" then
        disconnect conf_name
      end if
    end if

    return state of configuration conf_index
  end if
end tell