#!/usr/bin/env python
# -*- encoding:utf8 -*-

import datetime, os, re, locale

today= datetime.datetime.now ()
max_backup_delay = datetime.timedelta (1, 7200)

def last_backup (log_file):
    with open(log_file) as s:
        logs_ok = re.findall (r'^([ a-zéûA-Z:,0-9]*)( \(UTC\+0[12]00\))?\nReturned 0\n={30}', s.read (), re.MULTILINE)[-1][0]
        print "Last backup check : " + logs_ok
        try:
            return datetime.datetime.strptime (logs_ok, '%a %b %d %X %Z %Y')
        except:
            locale.setlocale(locale.LC_ALL, 'fr_FR.UTF-8')
            return datetime.datetime.strptime (logs_ok, '%A %d %B %Y, %X')

try:
    last_backup_date= last_backup ("/var/log/check_backup.log")
except:
    last_backup_date= last_backup ("/var/log/check_backup.log.1")

if today - last_backup_date < max_backup_delay:
    exit (0)
else:
    exit (1)