Bjoern Olausson

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#!/bin/env python
# -*- coding: utf-8 -*-
#
#------------------------------------------------------------------------------
#ftp_backup.py v1.0, Copyright Bjoern Olausson
#------------------------------------------------------------------------------
#This program is free software; you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation; either version 2 of the License, or
#(at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#GNU General Public License for more details.
#
#To view the license visit
#http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#or write to
#Free Software Foundation, Inc.
#51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
 
import time
import os
import smtplib
import sys
from ftplib import FTP
from glob import glob
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.MIMEText import MIMEText
from email import Encoders
 
HOST = ""
HOST_BACKUP_PATH = "/ispcp"
USER = ""
PASSWORD = ""
 
DOMAINS_TO_BACKUP = ["domaina.tld", "domainb.tld"]
PATH_TO_VIRTUAL = "/var/www/virtual"
DAYS_TO_KEEP = 3
 
USE_MAIL = True
 
mail_user = ""
mail_pwd = ""
mail_server = ""
mail_smtp_port = "25"  # 465
 
mail_from = ""
mail_to = ""
mail_subject = "Backup Failed"
 
 
def mail(text, attach="false"):
	# http://kutuma.blogspot.com/2007/08/sending-emails-via-gmail-with-python.html
	if not USE_MAIL:
		raise Exception(text)
	msg = MIMEMultipart()
 
	msg['From'] = mail_user
	msg['To'] = mail_to
	msg['Subject'] = mail_subject
 
	msg.attach(MIMEText(text))
 
	if attach != "false":
		part = MIMEBase('application', 'octet-stream')
		part.set_payload(open(attach, 'rb').read())
		Encoders.encode_base64(part)
		part.add_header('Content-Disposition',
			'attachment; filename="%s"' % os.path.basename(attach))
		msg.attach(part)
 
	mailServer = smtplib.SMTP(mail_server, int(mail_smtp_port))
	mailServer.ehlo()
	try:
		mailServer.starttls()
	except Exception, e:
		pass
	else:
		mailServer.ehlo()
	mailServer.login(mail_user, mail_pwd)
	mailServer.sendmail(mail_user, mail_to, msg.as_string())
	try:
		# Should be mailServer.quit(), but that crashes...
		mailServer.quit()
	except Exception, e:
		mailServer.close()
	sys.exit(1)
 
timestr = time.strftime("%Y%m%d_%H%M%S", time.localtime())
TODAY = int(time.strftime("%Y%m%d"))
 
BACKUP_DICT = {}
for DOM in DOMAINS_TO_BACKUP:
	DIR = "%(VIRTUAL)s/%(DOMAIN)s/backups" \
		% {"VIRTUAL": PATH_TO_VIRTUAL, "DOMAIN": DOM}
	for FILE in glob(DIR + "/*"):
		FILE_NAME = os.path.basename(FILE)
		BACKUP_NAME = "%(DOMAIN)s_-_%(DATE)s_-_%(FILENAME)s" \
			% {"DOMAIN": DOM, "DATE": timestr, "FILENAME": FILE_NAME}
		BACKUP_DICT[BACKUP_NAME] = FILE
 
if len(BACKUP_DICT) == 0:
	e = "No files found to backup"
	print e
	mail(e)
 
try:
	ftp = FTP(HOST, timeout=10)
except Exception, e:
	CONNECTED = False
	RECONNECTS = 1
	while not CONNECTED and (RECONNECTS <= 3):
		try:
			ftp = FTP(HOST, timeout=10)
		except Exception, e:
			pass
		else:
			CONNECTED = True
		if not CONNECTED and RECONNECTS >= 3:
			print e
			mail(e)
		RECONNECTS += 1
 
try:
	lgn = ftp.login(USER, PASSWORD)
except Exception, e:
	LOGGEDIN = False
	RETRIES = 1
	while not LOGGEDIN and (RETRIES <= 3):
		try:
			ftp = FTP(HOST, timeout=10)
		except Exception, e:
			pass
		else:
			LOGGEDIN = True
		if not LOGGEDIN and RETRIES >= 3:
			print e
			mail(e)
		RETRIES += 1
try:
	ftp.mkd(HOST_BACKUP_PATH)
except Exception, e:
	if str(e) == "550 /ispcp: File exists":
		pass
	else:
		print e
		mail(e)
 
try:
	ftp.cwd(HOST_BACKUP_PATH)
except Exception, e:
	print e
	mail(e)
 
for ITEM in BACKUP_DICT:
	FILE = BACKUP_DICT[ITEM]
	FILE_NAME = os.path.basename(FILE)
	F = open(FILE, "r")
	try:
		ftp.storbinary("STOR %(ITEM)s" % {"ITEM": ITEM}, F)
	except Exception, e:
		print e
		mail(e)
	F.close()
 
FILES_ON_HOST = []
try:
	FILES_ON_HOST = ftp.nlst()
except Exception, e:
	print e
	mail(e)
 
FILES_ON_HOST.sort()
 
for FILE in FILES_ON_HOST:
	CREATE_DAY = int(FILE.split("_-_")[1].split("_")[0])
	DAY_DIFF = TODAY - CREATE_DAY
	if DAY_DIFF > DAYS_TO_KEEP:
		try:
			ftp.delete(FILE)
		except Exception, e:
			print e
			mail(e)
 
try:
	ftp.quit()
except Exception, e:
	ftp.close()