Depending on script mode, either use 'whitelist' or 'fallback list'

    """ Apply the fallback whitelist_obj to this fallback list,

        passing exact to is_in_whitelist(). """

    excluded_count = 0

    logging.debug('Applying fallback list')

    list_type = 'whitelist'

    if whitelist_obj['check_existing']:

        list_type = 'fallback list'

    logging.debug('Applying {}'.format(list_type))

    # parse the whitelist

    whitelist = self.load_relaylist(whitelist_obj)

    filtered_fallbacks = []

      else:

          # exclude

          excluded_count += 1

          log_excluded('Excluding %s: not in fallback list.',

                       f._fpr)

          log_excluded('Excluding %s: not in %s.',

                       f._fpr, list_type)

    self.fallbacks = filtered_fallbacks

    return excluded_count

                                                      fallback_count)))

  def summarise_fallbacks(self, eligible_count, operator_count, failed_count,

                          guard_count, target_count):

                          guard_count, target_count, check_existing):

    s = ''

    # Report:

    #  whether we checked consensus download times

    s += '\n'

    s += '*/'

    if fallback_count < MIN_FALLBACK_COUNT:

      list_type = 'whitelist'

      if check_existing:

          list_type = 'fallback list'

      # We must have a minimum number of fallbacks so they are always

      # reachable, and are in diverse locations

      s += '\n'

      s += '#error Fallback Count %d is too low. '%(fallback_count)

      s += 'Must be at least %d for diversity. '%(MIN_FALLBACK_COUNT)

      s += 'Try adding entries to the whitelist, '

      s += 'Try adding entries to %s, '%(list_type)

      s += 'or setting INCLUDE_UNLISTED_ENTRIES = True.'

    return s

  logging.basicConfig(level=logging.INFO)

  logging.getLogger('stem').setLevel(logging.INFO)

  whitelist = {'data': parse_fallback_file(FALLBACK_FILE_NAME),

               'name': FALLBACK_FILE_NAME}

               'name': FALLBACK_FILE_NAME,

               'check_existing' : True}

  list_fallbacks(whitelist, exact=True)

def process_default():

  logging.basicConfig(level=logging.WARNING)

  logging.getLogger('stem').setLevel(logging.WARNING)

  whitelist = {'data': read_from_file(WHITELIST_FILE_NAME, MAX_LIST_FILE_SIZE),

               'name': WHITELIST_FILE_NAME}

               'name': WHITELIST_FILE_NAME,

               'check_existing': False}

  list_fallbacks(whitelist, exact=False)

## Main Function

  """ Fetches required onionoo documents and evaluates the

      fallback directory criteria for each of the relays,

      passing exact to apply_filter_lists(). """

  if whitelist['check_existing']:

      print "/* type=fallback */"

  else:

      print "/* type=whitelist */"

  print ("/* version={} */"

         .format(cleanse_c_multiline_comment(FALLBACK_FORMAT_VERSION)))

  now = datetime.datetime.utcnow()

  if len(candidates.fallbacks) > 0:

    print candidates.summarise_fallbacks(eligible_count, operator_count,

                                         failed_count, guard_count,

                                         target_count)

                                         target_count,

                                         whitelist['check_existing'])

  else:

    print '/* No Fallbacks met criteria */'