/usr/lib/python2.7/dist-packages/ipaserver/install/ipa_restore.py is in python-ipaserver 4.7.0~pre1+git20180411-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 | # Authors: Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2013 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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 logging
import os
import shutil
import tempfile
import time
import pwd
import ldif
import itertools
import six
from ipaclient.install.client import update_ipa_nssdb
from ipalib import api, errors
from ipalib.constants import FQDN
from ipapython import version, ipautil
from ipapython.ipautil import run, user_input
from ipapython import admintool, certdb
from ipapython.dn import DN
from ipaserver.install.replication import (wait_for_task, ReplicationManager,
get_cs_replication_manager)
from ipaserver.install import installutils
from ipaserver.install import dsinstance, httpinstance, cainstance, krbinstance
from ipapython import ipaldap
import ipapython.errors
from ipaplatform.constants import constants
from ipaplatform.tasks import tasks
from ipaplatform import services
from ipaplatform.paths import paths
try:
from ipaserver.install import adtrustinstance
except ImportError:
adtrustinstance = None
# pylint: disable=import-error
if six.PY3:
# The SafeConfigParser class has been renamed to ConfigParser in Py3
from configparser import ConfigParser as SafeConfigParser
else:
from ConfigParser import SafeConfigParser
# pylint: enable=import-error
logger = logging.getLogger(__name__)
def recursive_chown(path, uid, gid):
'''
Change ownership of all files and directories in a path.
'''
for root, dirs, files in os.walk(path):
for dir in dirs:
os.chown(os.path.join(root, dir), uid, gid)
os.chmod(os.path.join(root, dir), 0o750)
for file in files:
os.chown(os.path.join(root, file), uid, gid)
os.chmod(os.path.join(root, file), 0o640)
def decrypt_file(tmpdir, filename, keyring):
source = filename
(dest, ext) = os.path.splitext(filename)
if ext != '.gpg':
raise admintool.ScriptError('Trying to decrypt a non-gpg file')
dest = os.path.basename(dest)
dest = os.path.join(tmpdir, dest)
args = [paths.GPG,
'--batch',
'-o', dest]
if keyring is not None:
args.append('--no-default-keyring')
args.append('--keyring')
args.append(keyring + '.pub')
args.append('--secret-keyring')
args.append(keyring + '.sec')
args.append('-d')
args.append(source)
result = run(args, raiseonerr=False)
if result.returncode != 0:
raise admintool.ScriptError('gpg failed: %s' % result.error_log)
return dest
class RemoveRUVParser(ldif.LDIFParser):
def __init__(self, input_file, writer):
ldif.LDIFParser.__init__(self, input_file)
self.writer = writer
def handle(self, dn, entry):
objectclass = None
nsuniqueid = None
for name, value in entry.items():
name = name.lower()
if name == 'objectclass':
objectclass = [x.lower() for x in value]
elif name == 'nsuniqueid':
nsuniqueid = [x.lower() for x in value]
if (
objectclass and nsuniqueid and
b'nstombstone' in objectclass and
b'ffffffff-ffffffff-ffffffff-ffffffff' in nsuniqueid
):
logger.debug("Removing RUV entry %s", dn)
return
self.writer.unparse(dn, entry)
class Restore(admintool.AdminTool):
command_name = 'ipa-restore'
log_file_name = paths.IPARESTORE_LOG
usage = "%prog [options] backup"
description = "Restore IPA files and databases."
# directories and files listed here will be removed from filesystem before
# files from backup are copied
DIRS_TO_BE_REMOVED = [
paths.DNSSEC_TOKENS_DIR,
]
FILES_TO_BE_REMOVED = [
paths.HTTPD_NSS_CONF,
]
def __init__(self, options, args):
super(Restore, self).__init__(options, args)
self._conn = None
@classmethod
def add_options(cls, parser):
super(Restore, cls).add_options(parser, debug_option=True)
parser.add_option("-p", "--password", dest="password",
help="Directory Manager password")
parser.add_option("--gpg-keyring", dest="gpg_keyring",
help="The gpg key name to be used")
parser.add_option("--data", dest="data_only", action="store_true",
default=False, help="Restore only the data")
parser.add_option("--online", dest="online", action="store_true",
default=False, help="Perform the LDAP restores online, for data only.")
parser.add_option("--instance", dest="instance",
help="The 389-ds instance to restore (defaults to all found)")
parser.add_option("--backend", dest="backend",
help="The backend to restore within the instance or instances")
parser.add_option('--no-logs', dest="no_logs", action="store_true",
default=False, help="Do not restore log files from the backup")
parser.add_option('-U', '--unattended', dest="unattended",
action="store_true", default=False,
help="Unattended restoration never prompts the user")
def setup_logging(self, log_file_mode='a'):
super(Restore, self).setup_logging(log_file_mode='a')
def validate_options(self):
parser = self.option_parser
options = self.options
super(Restore, self).validate_options(needs_root=True)
if len(self.args) < 1:
parser.error("must provide the backup to restore")
elif len(self.args) > 1:
parser.error("must provide exactly one name for the backup")
dirname = self.args[0]
if not os.path.isabs(dirname):
dirname = os.path.join(paths.IPA_BACKUP_DIR, dirname)
if not os.path.isdir(dirname):
parser.error("must provide path to backup directory")
if options.gpg_keyring:
if (not os.path.exists(options.gpg_keyring + '.pub') or
not os.path.exists(options.gpg_keyring + '.sec')):
parser.error("no such key %s" % options.gpg_keyring)
def ask_for_options(self):
options = self.options
super(Restore, self).ask_for_options()
# get the directory manager password
self.dirman_password = options.password
if not options.password:
if not options.unattended:
self.dirman_password = installutils.read_password(
"Directory Manager (existing master)",
confirm=False, validate=False)
if self.dirman_password is None:
raise admintool.ScriptError(
"Directory Manager password required")
def run(self):
options = self.options
super(Restore, self).run()
self.backup_dir = self.args[0]
if not os.path.isabs(self.backup_dir):
self.backup_dir = os.path.join(paths.IPA_BACKUP_DIR, self.backup_dir)
logger.info("Preparing restore from %s on %s",
self.backup_dir, FQDN)
self.header = os.path.join(self.backup_dir, 'header')
try:
self.read_header()
except IOError as e:
raise admintool.ScriptError("Cannot read backup metadata: %s" % e)
if options.data_only:
restore_type = 'DATA'
else:
restore_type = self.backup_type
# These checks would normally be in the validate method but
# we need to know the type of backup we're dealing with.
if restore_type == 'FULL':
if options.online:
raise admintool.ScriptError(
"File restoration cannot be done online")
if options.instance or options.backend:
raise admintool.ScriptError(
"Restore must be in data-only mode when restoring a "
"specific instance or backend")
else:
installutils.check_server_configuration()
self.init_api()
if options.instance:
instance_dir = (paths.VAR_LIB_SLAPD_INSTANCE_DIR_TEMPLATE %
options.instance)
if not os.path.exists(instance_dir):
raise admintool.ScriptError(
"Instance %s does not exist" % options.instance)
self.instances = [options.instance]
if options.backend:
for instance in self.instances:
db_dir = (paths.SLAPD_INSTANCE_DB_DIR_TEMPLATE %
(instance, options.backend))
if os.path.exists(db_dir):
break
else:
raise admintool.ScriptError(
"Backend %s does not exist" % options.backend)
self.backends = [options.backend]
for instance, backend in itertools.product(self.instances,
self.backends):
db_dir = (paths.SLAPD_INSTANCE_DB_DIR_TEMPLATE %
(instance, backend))
if os.path.exists(db_dir):
break
else:
raise admintool.ScriptError(
"Cannot restore a data backup into an empty system")
logger.info("Performing %s restore from %s backup",
restore_type, self.backup_type)
if self.backup_host != FQDN:
raise admintool.ScriptError(
"Host name %s does not match backup name %s" %
(FQDN, self.backup_host))
if self.backup_ipa_version != str(version.VERSION):
logger.warning(
"Restoring data from a different release of IPA.\n"
"Data is version %s.\n"
"Server is running %s.",
self.backup_ipa_version, str(version.VERSION))
if (not options.unattended and
not user_input("Continue to restore?", False)):
raise admintool.ScriptError("Aborted")
pent = pwd.getpwnam(constants.DS_USER)
# Temporary directory for decrypting files before restoring
self.top_dir = tempfile.mkdtemp("ipa")
os.chown(self.top_dir, pent.pw_uid, pent.pw_gid)
os.chmod(self.top_dir, 0o750)
self.dir = os.path.join(self.top_dir, "ipa")
os.mkdir(self.dir)
os.chmod(self.dir, 0o750)
os.chown(self.dir, pent.pw_uid, pent.pw_gid)
cwd = os.getcwd()
logger.info("Temporary setting umask to 022")
old_umask = os.umask(0o022)
try:
dirsrv = services.knownservices.dirsrv
self.extract_backup(options.gpg_keyring)
if restore_type == 'FULL':
self.restore_default_conf()
self.init_api(confdir=self.dir + paths.ETC_IPA)
databases = []
for instance in self.instances:
for backend in self.backends:
database = (instance, backend)
ldiffile = os.path.join(self.dir, '%s-%s.ldif' % database)
if os.path.exists(ldiffile):
databases.append(database)
if options.instance:
for instance, backend in databases:
if instance == options.instance:
break
else:
raise admintool.ScriptError(
"Instance %s not found in backup" % options.instance)
if options.backend:
for instance, backend in databases:
if backend == options.backend:
break
else:
raise admintool.ScriptError(
"Backend %s not found in backup" % options.backend)
# Big fat warning
if (not options.unattended and
not user_input("Restoring data will overwrite existing live data. Continue to restore?", False)):
raise admintool.ScriptError("Aborted")
logger.info(
"Each master will individually need to be re-initialized or")
logger.info(
"re-created from this one. The replication agreements on")
logger.info(
"masters running IPA 3.1 or earlier will need to be manually")
logger.info(
"re-enabled. See the man page for details.")
logger.info("Disabling all replication.")
self.disable_agreements()
if restore_type != 'FULL':
if not options.online:
logger.info('Stopping Directory Server')
dirsrv.stop(capture_output=False)
else:
logger.info('Starting Directory Server')
dirsrv.start(capture_output=False)
else:
logger.info('Stopping IPA services')
result = run([paths.IPACTL, 'stop'], raiseonerr=False)
if result.returncode not in [0, 6]:
logger.warning('Stopping IPA failed: %s', result.error_log)
self.restore_selinux_booleans()
http = httpinstance.HTTPInstance()
# We do either a full file restore or we restore data.
if restore_type == 'FULL':
self.remove_old_files()
self.cert_restore_prepare()
self.file_restore(options.no_logs)
self.cert_restore()
if 'CA' in self.backup_services:
self.__create_dogtag_log_dirs()
# Always restore the data from ldif
# We need to restore both userRoot and ipaca.
for instance, backend in databases:
self.ldif2db(instance, backend, online=options.online)
if restore_type != 'FULL':
if not options.online:
logger.info('Starting Directory Server')
dirsrv.start(capture_output=False)
else:
# restore access controll configuration
auth_backup_path = os.path.join(paths.VAR_LIB_IPA, 'auth_backup')
if os.path.exists(auth_backup_path):
tasks.restore_auth_configuration(auth_backup_path)
# explicitly enable then disable the pki tomcatd service to
# re-register its instance. FIXME, this is really wierd.
services.knownservices.pki_tomcatd.enable()
services.knownservices.pki_tomcatd.disable()
logger.info('Restarting GSS-proxy')
gssproxy = services.service('gssproxy', api)
gssproxy.reload_or_restart()
logger.info('Starting IPA services')
run([paths.IPACTL, 'start'])
logger.info('Restarting SSSD')
sssd = services.service('sssd', api)
sssd.restart()
logger.info('Restarting oddjobd')
oddjobd = services.service('oddjobd', api)
if not oddjobd.is_enabled():
logger.info("Enabling oddjobd")
oddjobd.enable()
oddjobd.start()
http.remove_httpd_ccaches()
# have the daemons pick up their restored configs
run([paths.SYSTEMCTL, "--system", "daemon-reload"])
finally:
try:
os.chdir(cwd)
except Exception as e:
logger.error('Cannot change directory to %s: %s', cwd, e)
shutil.rmtree(self.top_dir)
logger.info("Restoring umask to %s", old_umask)
os.umask(old_umask)
def get_connection(self):
'''
Create an ldapi connection and bind to it using autobind as root.
'''
instance_name = installutils.realm_to_serverid(api.env.realm)
if not services.knownservices.dirsrv.is_running(instance_name):
raise admintool.ScriptError(
"directory server instance is not running/configured"
)
if self._conn is not None:
return self._conn
ldap_uri = ipaldap.get_ldap_uri(protocol='ldapi', realm=api.env.realm)
self._conn = ipaldap.LDAPClient(ldap_uri)
try:
self._conn.external_bind()
except Exception as e:
raise admintool.ScriptError('Unable to bind to LDAP server: %s'
% e)
return self._conn
def disable_agreements(self):
'''
Find all replication agreements on all masters and disable them.
Warn very loudly about any agreements/masters we cannot contact.
'''
try:
conn = self.get_connection()
except Exception as e:
logger.error('Unable to get connection, skipping disabling '
'agreements: %s', e)
return
masters = []
dn = DN(('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), api.env.basedn)
try:
entries = conn.get_entries(dn, conn.SCOPE_ONELEVEL)
except Exception as e:
raise admintool.ScriptError(
"Failed to read master data: %s" % e)
else:
masters = [ent.single_value['cn'] for ent in entries]
for master in masters:
if master == api.env.host:
continue
try:
repl = ReplicationManager(api.env.realm, master,
self.dirman_password)
except Exception as e:
logger.critical("Unable to disable agreement on %s: %s",
master, e)
continue
master_dn = DN(('cn', master), ('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), api.env.basedn)
try:
services = repl.conn.get_entries(master_dn,
repl.conn.SCOPE_ONELEVEL)
except errors.NotFound:
continue
services_cns = [s.single_value['cn'] for s in services]
host_entries = repl.find_ipa_replication_agreements()
hosts = [rep.single_value.get('nsds5replicahost')
for rep in host_entries]
for host in hosts:
logger.info('Disabling replication agreement on %s to %s',
master, host)
repl.disable_agreement(host)
if 'CA' in services_cns:
try:
repl = get_cs_replication_manager(api.env.realm, master,
self.dirman_password)
except Exception as e:
logger.critical("Unable to disable agreement on %s: %s",
master, e)
continue
host_entries = repl.find_ipa_replication_agreements()
hosts = [rep.single_value.get('nsds5replicahost')
for rep in host_entries]
for host in hosts:
logger.info('Disabling CA replication agreement on %s to '
'%s', master, host)
repl.hostnames = [master, host]
repl.disable_agreement(host)
def ldif2db(self, instance, backend, online=True):
'''
Restore a LDIF backup of the data in this instance.
If executed online create a task and wait for it to complete.
'''
logger.info('Restoring from %s in %s', backend, instance)
cn = time.strftime('import_%Y_%m_%d_%H_%M_%S')
dn = DN(('cn', cn), ('cn', 'import'), ('cn', 'tasks'), ('cn', 'config'))
ldifdir = paths.SLAPD_INSTANCE_LDIF_DIR_TEMPLATE % instance
ldifname = '%s-%s.ldif' % (instance, backend)
ldiffile = os.path.join(ldifdir, ldifname)
srcldiffile = os.path.join(self.dir, ldifname)
if not os.path.exists(ldifdir):
pent = pwd.getpwnam(constants.DS_USER)
os.mkdir(ldifdir)
os.chmod(ldifdir, 0o770)
os.chown(ldifdir, pent.pw_uid, pent.pw_gid)
ipautil.backup_file(ldiffile)
with open(ldiffile, 'w') as out_file:
ldif_writer = ldif.LDIFWriter(out_file)
with open(srcldiffile, 'rb') as in_file:
ldif_parser = RemoveRUVParser(in_file, ldif_writer)
ldif_parser.parse()
# Make sure the modified ldiffile is owned by DS_USER
pent = pwd.getpwnam(constants.DS_USER)
os.chown(ldiffile, pent.pw_uid, pent.pw_gid)
if online:
conn = self.get_connection()
ent = conn.make_entry(
dn,
{
'objectClass': ['top', 'extensibleObject'],
'cn': [cn],
'nsFilename': [ldiffile],
'nsUseOneFile': ['true'],
}
)
ent['nsInstance'] = [backend]
try:
conn.add_entry(ent)
except Exception as e:
logger.error("Unable to bind to LDAP server: %s", e)
return
logger.info("Waiting for LDIF to finish")
wait_for_task(conn, dn)
else:
try:
os.makedirs(paths.VAR_LOG_DIRSRV_INSTANCE_TEMPLATE % instance)
except OSError as e:
pass
args = [paths.LDIF2DB,
'-Z', instance,
'-i', ldiffile,
'-n', backend]
result = run(args, raiseonerr=False)
if result.returncode != 0:
logger.critical("ldif2db failed: %s", result.error_log)
def bak2db(self, instance, backend, online=True):
'''
Restore a BAK backup of the data and changelog in this instance.
If backend is None then all backends are restored.
If executed online create a task and wait for it to complete.
instance here is a loaded term. It can mean either a separate
389-ds install instance or a separate 389-ds backend. We only need
to treat ipaca specially.
'''
if backend is not None:
logger.info('Restoring %s in %s', backend, instance)
else:
logger.info('Restoring %s', instance)
cn = time.strftime('restore_%Y_%m_%d_%H_%M_%S')
dn = DN(('cn', cn), ('cn', 'restore'), ('cn', 'tasks'), ('cn', 'config'))
if online:
conn = self.get_connection()
ent = conn.make_entry(
dn,
{
'objectClass': ['top', 'extensibleObject'],
'cn': [cn],
'nsArchiveDir': [os.path.join(self.dir, instance)],
'nsDatabaseType': ['ldbm database'],
}
)
if backend is not None:
ent['nsInstance'] = [backend]
try:
conn.add_entry(ent)
except Exception as e:
raise admintool.ScriptError('Unable to bind to LDAP server: %s'
% e)
logger.info("Waiting for restore to finish")
wait_for_task(conn, dn)
else:
args = [paths.BAK2DB,
'-Z', instance,
os.path.join(self.dir, instance)]
if backend is not None:
args.append('-n')
args.append(backend)
result = run(args, raiseonerr=False)
if result.returncode != 0:
logger.critical("bak2db failed: %s", result.error_log)
def restore_default_conf(self):
'''
Restore paths.IPA_DEFAULT_CONF to temporary directory.
Primary purpose of this method is to get cofiguration for api
finalization when restoring ipa after uninstall.
'''
cwd = os.getcwd()
os.chdir(self.dir)
args = ['tar',
'--xattrs',
'--selinux',
'-xzf',
os.path.join(self.dir, 'files.tar'),
paths.IPA_DEFAULT_CONF[1:],
]
result = run(args, raiseonerr=False)
if result.returncode != 0:
logger.critical('Restoring %s failed: %s',
paths.IPA_DEFAULT_CONF, result.error_log)
os.chdir(cwd)
def remove_old_files(self):
"""
Removes all directories, files or temporal files that should be
removed before backup files are copied, to prevent errors.
"""
for d in self.DIRS_TO_BE_REMOVED:
try:
shutil.rmtree(d)
except OSError as e:
if e.errno != 2: # 2: dir does not exist
logger.warning("Could not remove directory: %s (%s)", d, e)
for f in self.FILES_TO_BE_REMOVED:
try:
os.remove(f)
except OSError as e:
if e.errno != 2: # 2: file does not exist
logger.warning("Could not remove file: %s (%s)", f, e)
def file_restore(self, nologs=False):
'''
Restore all the files in the tarball.
This MUST be done offline because we directly backup the 389-ds
databases.
'''
logger.info("Restoring files")
cwd = os.getcwd()
os.chdir('/')
args = ['tar',
'--xattrs',
'--selinux',
'-xzf',
os.path.join(self.dir, 'files.tar')
]
if nologs:
args.append('--exclude')
args.append('var/log')
result = run(args, raiseonerr=False)
if result.returncode != 0:
logger.critical('Restoring files failed: %s', result.error_log)
os.chdir(cwd)
def read_header(self):
'''
Read the backup file header that contains the meta data about
this particular backup.
'''
config = SafeConfigParser()
config.read(self.header)
self.backup_type = config.get('ipa', 'type')
self.backup_time = config.get('ipa', 'time')
self.backup_host = config.get('ipa', 'host')
self.backup_ipa_version = config.get('ipa', 'ipa_version')
self.backup_version = config.get('ipa', 'version')
# pylint: disable=no-member
# we can assume that returned object is string and it has .split()
# method
self.backup_services = config.get('ipa', 'services').split(',')
# pylint: enable=no-member
def extract_backup(self, keyring=None):
'''
Extract the contents of the tarball backup into a temporary location,
decrypting if necessary.
'''
encrypt = False
filename = None
if self.backup_type == 'FULL':
filename = os.path.join(self.backup_dir, 'ipa-full.tar')
else:
filename = os.path.join(self.backup_dir, 'ipa-data.tar')
if not os.path.exists(filename):
if not os.path.exists(filename + '.gpg'):
raise admintool.ScriptError('Unable to find backup file in %s' % self.backup_dir)
else:
filename = filename + '.gpg'
encrypt = True
if encrypt:
logger.info('Decrypting %s', filename)
filename = decrypt_file(self.dir, filename, keyring)
os.chdir(self.dir)
args = ['tar',
'--xattrs',
'--selinux',
'-xzf',
filename,
'.'
]
run(args)
pent = pwd.getpwnam(constants.DS_USER)
os.chown(self.top_dir, pent.pw_uid, pent.pw_gid)
recursive_chown(self.dir, pent.pw_uid, pent.pw_gid)
if encrypt:
# We can remove the decoded tarball
os.unlink(filename)
def __create_dogtag_log_dirs(self):
"""
If we are doing a full restore and the dogtag log directories do
not exist then tomcat will fail to start.
The directory is different depending on whether we have a d9-based
or a d10-based installation.
"""
dirs = []
# dogtag 10
if (os.path.exists(paths.VAR_LIB_PKI_TOMCAT_DIR) and
not os.path.exists(paths.TOMCAT_TOPLEVEL_DIR)):
dirs += [paths.TOMCAT_TOPLEVEL_DIR,
paths.TOMCAT_CA_DIR,
paths.TOMCAT_CA_ARCHIVE_DIR,
paths.TOMCAT_SIGNEDAUDIT_DIR]
try:
pent = pwd.getpwnam(constants.PKI_USER)
except KeyError:
logger.debug("No %s user exists, skipping CA directory creation",
constants.PKI_USER)
return
logger.debug('Creating log directories for dogtag')
for dir in dirs:
try:
logger.debug('Creating %s', dir)
os.mkdir(dir)
os.chmod(dir, 0o770)
os.chown(dir, pent.pw_uid, pent.pw_gid)
tasks.restore_context(dir)
except Exception as e:
# This isn't so fatal as to side-track the restore
logger.error('Problem with %s: %s', dir, e)
def restore_selinux_booleans(self):
bools = dict(constants.SELINUX_BOOLEAN_HTTPD)
if 'ADTRUST' in self.backup_services:
if adtrustinstance:
bools.update(constants.SELINUX_BOOLEAN_ADTRUST)
else:
logger.error(
'The AD trust package was not found, '
'not setting SELinux booleans.')
try:
tasks.set_selinux_booleans(bools)
except ipapython.errors.SetseboolError as e:
logger.error('%s', e)
def cert_restore_prepare(self):
cainstance.CAInstance().stop_tracking_certificates()
httpinstance.HTTPInstance().stop_tracking_certificates()
try:
dsinstance.DsInstance().stop_tracking_certificates(
installutils.realm_to_serverid(api.env.realm))
except (OSError, IOError):
# When IPA is not installed, DS NSS DB does not exist
pass
krbinstance.KrbInstance().stop_tracking_certs()
for basename in certdb.NSS_FILES:
filename = os.path.join(paths.IPA_NSSDB_DIR, basename)
try:
ipautil.backup_file(filename)
except OSError as e:
logger.error("Failed to backup %s: %s", filename, e)
tasks.remove_ca_certs_from_systemwide_ca_store()
def cert_restore(self):
try:
update_ipa_nssdb()
except RuntimeError as e:
logger.error("%s", e)
tasks.reload_systemwide_ca_store()
services.knownservices.certmonger.restart()
def init_api(self, **overrides):
overrides.setdefault('confdir', paths.ETC_IPA)
api.bootstrap(in_server=True, context='restore', **overrides)
api.finalize()
self.instances = [installutils.realm_to_serverid(api.env.realm)]
self.backends = ['userRoot', 'ipaca']
|