#!/usr/bin/python3

import sys, os, time

APACHE_LOG_DIR = "/var/log/apache"
USERS_DIR = "/home/users"
# Maximum open log files
MAX_FILES = 1000
CLOSE_COUNT = max(MAX_FILES/100, 2)

# open files
of = {}
# open file date
oc = {}

# check, if there is default directory
if os.path.isdir(os.path.join(APACHE_LOG_DIR, "_")):
  default_log = open('%s/_/httpd_log' % (APACHE_LOG_DIR), 'a', 1)
else:
  default_log = None

while True:
  line = sys.stdin.readline()
  pline = line.split(' ', 1)
  domain = ".".join(pline[0].rsplit('.', 2)[-2:])
  if len(pline)<2:
    break
  if domain not in of:
    if (not default_log) or os.path.exists("%s/%s" % (USERS_DIR, domain)):
      # open file line buffered (1)
      dir = "%s/%s" % (APACHE_LOG_DIR, domain)
      if not os.path.isdir(dir):
        try:
          os.makedirs(dir)
        except:
          pass
      of[domain] = open(
                     '%s/%s/%s_log' % (APACHE_LOG_DIR, domain, domain),
                     'a', 1
                   )
    else:
      # no user dir found, use default
      of[domain] = default_log
  of[domain].write(pline[1])
  oc[domain] = time.time()
  if len(of) > MAX_FILES:
    old_files = sorted(oc, key=oc.get)[:CLOSE_COUNT]
    #print('MAX open files reached, closing:', old_files)
    for i in old_files:
      if of[i] != default_log:
        of[i].close()
      del of[i]
      del oc[i]