yunohost/src/yunohost/data_migrations/0002_migrate_to_tsig_sha256.py
2019-08-14 16:46:14 +02:00

86 lines
3.1 KiB
Python

import glob
import os
import requests
import base64
import time
import json
from moulinette import m18n
from yunohost.utils.error import YunohostError
from moulinette.utils.log import getActionLogger
from yunohost.tools import Migration
from yunohost.dyndns import _guess_current_dyndns_domain
logger = getActionLogger('yunohost.migration')
class MyMigration(Migration):
"Migrate Dyndns stuff from MD5 TSIG to SHA512 TSIG"
def run(self, dyn_host="dyndns.yunohost.org", domain=None, private_key_path=None):
if domain is None or private_key_path is None:
try:
(domain, private_key_path) = _guess_current_dyndns_domain(dyn_host)
assert "+157" in private_key_path
except (YunohostError, AssertionError):
logger.info(m18n.n("migrate_tsig_not_needed"))
return
logger.info(m18n.n('migrate_tsig_start', domain=domain))
public_key_path = private_key_path.rsplit(".private", 1)[0] + ".key"
public_key_md5 = open(public_key_path).read().strip().split(' ')[-1]
os.system('cd /etc/yunohost/dyndns && '
'dnssec-keygen -a hmac-sha512 -b 512 -r /dev/urandom -n USER %s' % domain)
os.system('chmod 600 /etc/yunohost/dyndns/*.key /etc/yunohost/dyndns/*.private')
# +165 means that this file store a hmac-sha512 key
new_key_path = glob.glob('/etc/yunohost/dyndns/*+165*.key')[0]
public_key_sha512 = open(new_key_path).read().strip().split(' ', 6)[-1]
try:
r = requests.put('https://%s/migrate_key_to_sha512/' % (dyn_host),
data={
'public_key_md5': base64.b64encode(public_key_md5),
'public_key_sha512': base64.b64encode(public_key_sha512),
}, timeout=30)
except requests.ConnectionError:
raise YunohostError('no_internet_connection')
if r.status_code != 201:
try:
error = json.loads(r.text)['error']
except Exception:
# failed to decode json
error = r.text
import traceback
from StringIO import StringIO
stack = StringIO()
traceback.print_stack(file=stack)
logger.error(stack.getvalue())
# Migration didn't succeed, so we rollback and raise an exception
os.system("mv /etc/yunohost/dyndns/*+165* /tmp")
raise YunohostError('migrate_tsig_failed', domain=domain,
error_code=str(r.status_code), error=error)
# remove old certificates
os.system("mv /etc/yunohost/dyndns/*+157* /tmp")
# sleep to wait for dyndns cache invalidation
logger.info(m18n.n('migrate_tsig_wait'))
time.sleep(60)
logger.info(m18n.n('migrate_tsig_wait_2'))
time.sleep(60)
logger.info(m18n.n('migrate_tsig_wait_3'))
time.sleep(30)
logger.info(m18n.n('migrate_tsig_wait_4'))
time.sleep(30)
logger.info(m18n.n('migrate_tsig_end'))
return