BackupPC Agent for WAPT
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# -*- coding: utf-8 -*-
from setuphelpers import *
from cryptography.fernet import Fernet
import json, os, random, string, time
from jinja2 import Environment, FileSystemLoader
uninstallkey = []
variables = {
'backup_servers': [ '192.168.100.31' ],
'backup_rsync_pass': 's3cretp@ssw0rd',
'backup_ssh_keys': []
}
# Read local variables file if available
if isfile(makepath(programfiles32,'wapt','private','symetric.txt')) and isfile(makepath(programfiles32,'wapt','private','variables.txt')):
print('Reading local encrypted variables file')
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')
version = control['version'].split('-',1)[0]
install_exe_if_needed("backuppc-client.exe",silentflags='/S',key='BackupPC',min_version=version,killbefore=['rsync.exe'])
# We override some files
# cygwin and rsync are needed because version 3.1.1 is very unreliable on Win2012, so we downgrade to 3.0.9
# our own pre-exec adds an exclusive lock
# And vsrsync.cmd fixes an issue when PATH contains a & char
print('Overriding scripts and binaries')
for file in overrides:
print('Copying %s' % file)
filecopyto(file, install_dir)
# We write credential file
print('Writing credential file')
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')
run('netsh advfirewall firewall del rule name="Agent BackupPC"', accept_returncodes=[0,1])
# 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])
run('net user lbkp %s' % variables['backup_pass'])
run('net localgroup Administrateurs lbkp /add', accept_returncodes=[0,2])
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 account')
delete_user('lbkp')
print('Removing files')
for file in overrides:
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(install_dir, file)):
print('%s is missing' % makepath(install_dir, file))
return "ERROR"
return "OK"