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# -*- encoding: utf-8 -*-
##############################################################################
# OpenERP, Open Source Management Solution
# Copyright (C) 2004-2009 Tiny SPRL (<http://tiny.be>). All Rights Reserved
# Copyright 2015 Agile Business Group <http://www.agilebg.com>
#
# 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 3 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.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
import xmlrpclib
import socket
import os
import time
import datetime
import base64
import re
try:
import pysftp
except ImportError:
raise ImportError(
'This module needs pysftp to automaticly write backups to the FTP '
'through SFTP.Please install pysftp on your system.'
'(sudo pip install pysftp)'
)
from openerp import models, fields, api, _
from openerp.exceptions import except_orm, Warning
from openerp import tools
from openerp import netsvc
import logging
_logger = logging.getLogger(__name__)
def execute(connector, method, *args):
res = False
try:
res = getattr(connector, method)(*args)
except socket.error as e:
raise e
return res
class db_backup(models.Model):
_name = 'db.backup'
def get_connection(self, host, port):
uri = 'http://%s:%s' % (host, port)
return xmlrpclib.ServerProxy(uri + '/xmlrpc/db')
def get_db_list(self, host, port):
conn = self.get_connection(host, port)
db_list = execute(conn, 'list')
return db_list
@api.model
def _get_db_name(self):
return self.env.cr.dbname
# Columns local server
host = fields.Char(
string='Host', default='localhost', size=100, required=True)
port = fields.Char(
string='Port', default='8069', size=10, required=True)
name = fields.Char(
string='Database', size=100, required=True,
default=_get_db_name,
help='Database you want to schedule backups for'
)
bkp_dir = fields.Char(
string='Backup Directory', size=100,
default='/odoo/backups',
help='Absolute path for storing the backups',
required=True
)
autoremove = fields.Boolean(
string='Auto. Remove Backups',
help=(
"If you check this option you can choose to "
"automaticly remove the backup after xx days"
)
)
daystokeep = fields.Integer(
string='Remove after x days',
default=30,
help=(
"Choose after how many days the backup should be "
"deleted. For example:\nIf you fill in 5 the backups "
"will be removed after 5 days."
), required=True
)
sftpwrite = fields.Boolean(
string='Write to external server with sftp',
help=(
"If you check this option you can specify the details "
"needed to write to a remote server with SFTP."
)
)
sftppath = fields.Char(
string='Path external server',
help=(
"The location to the folder where the dumps should be "
"written to. For example /odoo/backups/.\nFiles will then"
" be written to /odoo/backups/ on your remote server."
)
)
sftpip = fields.Char(
string='IP Address SFTP Server',
help=(
"The IP address from your remote"
" server. For example 192.168.0.1"
)
)
sftpport = fields.Integer(
string="SFTP Port",
default=22,
help="The port on the FTP server that accepts SSH/SFTP calls."
)
sftpusername = fields.Char(
string='Username SFTP Server',
help=(
"The username where the SFTP connection "
"should be made with. This is the user on the external server."
)
)
sftppassword = fields.Char(
string='Password User SFTP Server',
help=(
"The password from the user where the SFTP connection "
"should be made with. This is the password from the user"
" on the external server."
)
)
daystokeepsftp = fields.Integer(
string='Remove SFTP after x days',
default=30,
help=(
"Choose after how many days the backup should be deleted "
"from the FTP server. For example:\nIf you fill in 5 the "
"backups will be removed after 5 days from the FTP server."
)
)
sendmailsftpfail = fields.Boolean(
string='Auto. E-mail on backup fail',
help=(
"If you check this option you can choose to automaticly"
" get e-mailed when the backup to the external server failed."
)
)
emailtonotify = fields.Char(
string='E-mail to notify',
help=(
"Fill in the e-mail where you want to be"
" notified that the backup failed on the FTP."
)
)
lasterrorlog = fields.Text(
string='E-mail to notify',
help=(
"Fill in the e-mail where you want to be"
" notified that the backup failed on the FTP."
)
)
@api.multi
def _check_db_exist(self):
for rec in self:
db_list = self.get_db_list(rec.host, rec.port)
if rec.name in db_list:
return True
return False
_constraints = [
(
_check_db_exist,
_('Error ! No such database exists!'), ['name']
)
]
@api.multi
def test_sftp_connection(self):
confs = self.search([])
# Check if there is a success or fail and write messages
messageTitle = ""
messageContent = ""
for rec in confs:
# db_list = self.get_db_list(cr, uid, [], rec.host, rec.port)
try:
# pathToWriteTo = rec.sftppath
ipHost = rec.sftpip
portHost = rec.sftpport
usernameLogin = rec.sftpusername
passwordLogin = rec.sftppassword
# Connect with external server over SFTP, so we know sure that
# everything works.
srv = pysftp.Connection(host=ipHost, username=usernameLogin,
password=passwordLogin, port=portHost)
srv.close()
# We have a success.
messageTitle = _("Connection Test Succeeded!")
messageContent = _(
"Everything seems properly set up for FTP back-ups!")
except Exception as e:
messageTitle = _("Connection Test Failed!")
if len(rec.sftpip) < 8:
messageContent += _(
"\nYour IP address seems to be too short.\n")
messageContent += "Here is what we got instead:\n"
if "Failed" in messageTitle:
raise except_orm(
_(messageTitle), _(
messageContent + "%s") %
tools.ustr(e))
else:
raise Warning(_(messageTitle), _(messageContent))
@api.model
def schedule_backup(self):
for rec in self.search([]):
db_list = self.get_db_list(rec.host, rec.port)
if rec.name in db_list:
file_path = ''
bkp_file = ''
try:
if not os.path.isdir(rec.bkp_dir):
os.makedirs(rec.bkp_dir)
except:
raise
# Create name for dumpfile.
bkp_file = '%s_%s.dump.zip' % (
time.strftime('%d_%m_%Y_%H_%M_%S'),
rec.name)
file_path = os.path.join(rec.bkp_dir, bkp_file)
conn = self.get_connection(rec.host, rec.port)
bkp = ''
try:
bkp = execute(
conn, 'dump', tools.config['admin_passwd'], rec.name)
except:
_logger.notifyChannel(
'backup', netsvc.LOG_INFO,
_(
"Couldn't backup database %s. "
"Bad database administrator"
"password for server running at http://%s:%s"
) % (rec.name, rec.host, rec.port))
return False
bkp = base64.decodestring(bkp)
fp = open(file_path, 'wb')
fp.write(bkp)
fp.close()
else:
_logger.notifyChannel(
'backup', netsvc.LOG_INFO,
"database %s doesn't exist on http://%s:%s" %
(rec.name, rec.host, rec.port))
return False
# Check if user wants to write to SFTP or not.
if rec.sftpwrite is True:
try:
# Store all values in variables
dir = rec.bkp_dir
pathToWriteTo = rec.sftppath
ipHost = rec.sftpip
portHost = rec.sftpport
usernameLogin = rec.sftpusername
passwordLogin = rec.sftppassword
# Connect with external server over SFTP
srv = pysftp.Connection(
host=ipHost,
username=usernameLogin,
password=passwordLogin,
port=portHost)
# Move to the correct directory on external server. If the
# user made a typo in his path with multiple slashes
# (/odoo//backups/) it will be fixed by this regex.
pathToWriteTo = re.sub('([/]{2,5})+', '/', pathToWriteTo)
try:
srv.chdir(pathToWriteTo)
except IOError:
# Create directory and subdirs if they do not exist.
currentDir = ''
for dirElement in pathToWriteTo.split('/'):
currentDir += dirElement + '/'
try:
srv.chdir(currentDir)
except:
_logger.info(
_(
'(Part of the) path didn\'t exist. '
'Creating it now at %s'
) % currentDir
)
# Make directory and then navigate into it
srv.mkdir(currentDir, mode=777)
srv.chdir(currentDir)
pass
srv.chdir(pathToWriteTo)
# Loop over all files in the directory.
for f in os.listdir(dir):
fullpath = os.path.join(dir, f)
if os.path.isfile(fullpath):
srv.put(fullpath)
# Navigate in to the correct folder.
srv.chdir(pathToWriteTo)
# Loop over all files in the directory from the back-ups.
# We will check the creation date of every back-up.
for file in srv.listdir(pathToWriteTo):
# Get the full path
fullpath = os.path.join(pathToWriteTo, file)
if srv.isfile(fullpath) and ".dump.zip" in file:
# Get the timestamp from the file on the external
# server
timestamp = srv.stat(fullpath).st_atime
createtime = (
datetime.datetime.fromtimestamp(timestamp)
)
now = datetime.datetime.now()
delta = now - createtime
# If the file is older than the daystokeepsftp (the
# days to keep that the user filled in on the Odoo
# form it will be removed.
if (
rec.daystokeepsftp > 0 and
delta.days >= rec.daystokeepsftp
):
# Only delete files, no directories!
srv.unlink(file)
# Close the SFTP session.
srv.close()
except Exception as e:
_logger.debug(
'Exception! We couldn\'t back '
'up to the FTP server..'
)
# At this point the SFTP backup failed.
# We will now check if the user wants
# an e-mail notification about this.
if rec.sendmailsftpfail:
try:
ir_mail_server = self.env['ir.mail_server']
message = (
"Dear,\n\nThe backup for the server %s"
" (IP: %s) failed.Please check"
" the following details:\n\n"
"IP address SFTP server: %s \nUsername: %s"
"\nPassword: %s"
"\n\nError details: %s \n\nWith kind regards"
) % (
rec.host, rec.sftpip, rec.sftpip,
rec.sftpusername, rec.sftppassword,
tools.ustr(e)
)
msg = ir_mail_server.build_email(
"auto_backup@%s.com" % rec.name,
[rec.emailtonotify],
"Backup from %s ( %s ) failed" % (
rec.host, rec.sftpip),
message)
ir_mail_server.send_email(msg)
except Exception as e:
_logger.debug(
'Exception! %s' % tools.ustr(e)
)
# Remove all old files (on local server) in case this is configured..
# This is done after the SFTP writing to prevent unusual behaviour:
# If the user would set local back-ups to be kept 0 days and the SFTP
# to keep backups xx days there wouldn't be any new back-ups added
# to the SFTP.
# If we'd remove the dump files before they're writen to the SFTP
# there willbe nothing to write. Meaning that if an user doesn't want
# to keep back-ups locally and only wants them on the SFTP
# (NAS for example) there wouldn't be any writing to the
# remote server if this if statement was before the SFTP write method
# right above this comment.
if rec.autoremove is True:
dir = rec.bkp_dir
# Loop over all files in the directory.
for f in os.listdir(dir):
fullpath = os.path.join(dir, f)
if os.path.isfile(fullpath) and ".dump.zip" in f:
timestamp = os.stat(fullpath).st_ctime
createtime = (
datetime.datetime.fromtimestamp(timestamp)
)
now = datetime.datetime.now()
delta = now - createtime
if delta.days >= rec.daystokeep:
os.remove(fullpath)
return True