Lot of work to make ssh based backup possible

master
Daniel Berteaud 5 years ago
parent 80ecbebc67
commit 1bfe4bcfc1
  1. 4
      WAPT/control
  2. 7
      deploy_keys.bat.j2
  3. 58
      setup.py

@ -1,11 +1,11 @@
package : fws-backuppc-agent
version : 1.3.4-4
version : 1.3.4-18
architecture : all
section : base
priority : optional
maintainer : Daniel Berteaud
description : BackupPC Agent
depends : fws-openssh
depends : fws-openssh,fws-sysinternals-suite
conflicts :
maturity : DEV
locale : all

@ -0,0 +1,7 @@
@echo off
IF NOT EXIST "%USERPROFILE%\.ssh" mkdir "%USERPROFILE%\.ssh"
IF EXIST "%USERPROFILE%\.ssh\authorized_keys" del /q "%USERPROFILE%\.ssh\authorized_keys"
{% for key in ssh_keys %}
echo {{ key }} >> "%USERPROFILE%\.ssh\authorized_keys"
{% endfor %}

@ -1,8 +1,8 @@
# -*- coding: utf-8 -*-
from setuphelpers import *
from cryptography.fernet import Fernet
import json
import os
import json, os, random, string, time
from jinja2 import Environment, FileSystemLoader
uninstallkey = []
@ -18,7 +18,12 @@ if isfile(makepath(programfiles32,'wapt','private','symetric.txt')) and isfile(m
f = Fernet(open(makepath(programfiles32,'wapt','private','symetric.txt'),'r').read())
variables.update(json.loads(f.decrypt(open(makepath(programfiles32,'wapt','private','variables.txt'),'r').read())))
# Create a random pass for the local backup account if not defined
if not 'backup_pass' in variables:
variables['backup_pass'] = ''.join(random.sample(string.lowercase+string.uppercase+string.digits,60))
overrides = ['rsyncd.conf', 'rsync.cmd', 'pre-exec.cmd', 'vsrsync.cmd', 'cygiconv-2.dll', 'cygwin1.dll', 'cygz.dll', 'rsync.exe']
install_dir = makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC')
def install():
print('Installing BackupPC Agent')
@ -31,11 +36,11 @@ def install():
print('Overriding scripts and binaries')
for file in overrides:
print('Copying %s' % file)
filecopyto(file,makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC'))
filecopyto(file, install_dir)
# We write credential file
print('Writing credential file')
open(makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC','rsyncd.secrets'),'w').write('backup:%s' % variables['backup_rsync_pass'])
open(r'%s\rsyncd.secrets' % install_dir,'w').write('backup:%s' % variables['backup_rsync_pass'])
# The default behaviour is to add a firewall rule allowing local network. We'll remove this rule to create a more restrictive one
print('Removing uneeded firewall rules')
@ -44,31 +49,48 @@ def install():
# Create the backup account
print('Create a local account and add it to the admin group')
run('net user lbkp /add', accept_returncodes=[0,2])
if 'backup_pass' in variables :
run('net user lbkp %s' % variables['backup_pass'])
run('net user lbkp %s' % variables['backup_pass'])
run('net localgroup Administrateurs lbkp /add', accept_returncodes=[0,2])
print('Writing SSH Keys for the backup account')
mkdirs(makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh'))
open(makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh','authorized_keys'),'w').write("\n".join(variables['backup_ssh_keys']))
run(r'icacls.exe "%s" /inheritance:d' % makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh','authorized_keys'))
run(r'icacls.exe "%s" /remove:g "*S-1-5-32-545" /t /c /q' % makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh','authorized_keys'))
run(r'icacls.exe "%s" /remove:g "*S-1-5-11" /t /c /q' % makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh','authorized_keys'))
run(r'icacls.exe "%s" /grant "NT SERVICE\sshd":(R)' % makepath(os.getenv('SYSTEMDRIVE','C:\\'),'Users','lbkp','.ssh','authorized_keys'))
print('Restricting permissions on private files')
run(r'icacls.exe "%s" /inheritance:d' % install_dir)
run(r'icacls.exe "%s" /remove:g "*S-1-5-32-545" /t /c /q' % install_dir)
run(r'icacls.exe "%s" /remove:g "*S-1-5-11" /t /c /q' % install_dir)
run(r'icacls.exe "%s" /remove:g "*S-1-5-1" /t /c /q' % install_dir)
run(r'icacls.exe "%s" /remove:g "*S-1-1-0" /t /c /q' % install_dir)
print('Creating the deploy_keys.bat')
jinja2 = Environment(
loader=FileSystemLoader('.'),
trim_blocks=True
)
open(r'%s\deploy_keys.bat' % install_dir,'w').write(
jinja2.get_template('deploy_keys.bat.j2').render(
ssh_keys = variables['backup_ssh_keys']
)
)
# We need to create lbkp profile dir and put it's .ssh.authorized_keys file.
# We can't use runas, we can't use psexec either as waptservice runs as SYSTEM. So we create a one-time task running as user lbkp
# This task just creates .ssh and populate .ssh/authorized_keys
print('Deploying ssh keys through a scheduled task')
run(r'schtasks /Create /SC ONCE /TN "deploy_backup_ssh_keys" /TR "%s\deploy_keys.bat" /ST "%s" /RU lbkp /RP %s /F /V1 /Z' % (install_dir, time.strftime('%H:%M:%S',time.localtime(time.time() + 120)), variables['backup_pass']))
run_task('deploy_backup_ssh_keys')
delete_task('deploy_backup_ssh_keys')
def uninstall():
print('Removing BackupPC Agent')
print('Removing lbkp from Admin group')
run('net localgroup Administrateurs lbkp /delete', accept_returncodes=[0,2])
print('Removing lbkp account')
delete_user('lbkp')
print('Removing files')
for file in overrides:
path = makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC',file)
path = makepath(install_dir, file)
if isfile(path):
os.unlink(path)
def audit():
for file in overrides + ['rsyncd.secrets','part.cmd' ]:
if not isfile(makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC',file)):
print('%s is missing' % makepath(os.getenv('SYSTEMDRIVE','C:\\'),'BackupPC',file))
if not isfile(makepath(install_dir, file)):
print('%s is missing' % makepath(install_dir, file))
return "ERROR"
return "OK"
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