#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2017, Florent Thiery
'''
Criticality: Medium
Checks that the server backups are not older than a day 
'''
import os
import sys
import subprocess
import imp
from datetime import datetime

os.chdir(os.path.dirname(__file__))

def test_ssh(server):
    status, out = subprocess.getstatusoutput('ssh %s ls /tmp' % server) 
    return status == 0

def test_last_backup_is_recent(server, client):
    path = '/backup/%s/current' % client
    cmd = 'ssh %s ls -l %s | grep current' % (server, path)
    status, out = subprocess.getstatusoutput(cmd)
    if status == 0:
        date = out.strip().split(' ')[-2]
        pdate = datetime.strptime(date, '%Y-%m-%d')
        if (datetime.now() - pdate).days > 2:
            print('Backup is older than 2 days')
            return False
        else:
            return True
    else:
        return False

if os.path.isfile('../utils.py'):
    es_utils = imp.load_source('es_utils', '../utils.py')
    conf = es_utils.load_conf()
    BURP_SERVER = conf.get('BURP_SERVER') 
    BURP_CLIENT_NAME = conf.get('BURP_CLIENT_NAME', 'localhost')
    if BURP_SERVER:
        if not test_ssh(BURP_SERVER):
            print('Failed to ssh into backup server')
            sys.exit(1)
        else:
            test_last_backup_is_recent(BURP_SERVER, BURP_CLIENT_NAME)

    else:
        sys.exit(2)
else:
    sys.exit(2)