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freeipa/install/tools/ipa-csreplica-manage
Petr Viktorin 3bf91eab25 Use Python3-compatible dict method names 
Python 2 has keys()/values()/items(), which return lists,
iterkeys()/itervalues()/iteritems(), which return iterators,
and viewkeys()/viewvalues()/viewitems() which return views.

Python 3 has only keys()/values()/items(), which return views.
To get iterators, one can use iter() or a for loop/comprehension;
for lists there's the list() constructor.

When iterating through the entire dict, without modifying the dict,
 the difference between Python 2's items() and iteritems() is
negligible, especially on small dicts (the main overhead is
extra memory, not CPU time). In the interest of simpler code,
this patch changes many instances of iteritems() to items(),
iterkeys() to keys() etc.

In other cases, helpers like six.itervalues are used.

Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
2015-09-01 11:42:01 +02:00

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#! /usr/bin/python2 -E
# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Based on ipa-replica-manage by Karl MacMillan <kmacmillan@mentalrootkit.com>
#
# Copyright (C) 2011 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 sys
import os
from ipapython.ipa_log_manager import *
from ipaserver.install import (replication, installutils, bindinstance,
cainstance, certs)
from ipalib import api, errors
from ipalib.constants import CACERT
from ipapython import ipautil, ipaldap, version, dogtag
from ipapython.dn import DN
# dict of command name and tuples of min/max num of args needed
commands = {
"list": (0, 1, "[master fqdn]", ""),
"connect": (1, 2, "<master fqdn> [other master fqdn]",
"must provide the name of the servers to connect"),
"disconnect": (1, 2, "<master fqdn> [other master fqdn]",
"must provide the name of the server to disconnect"),
"del": (1, 1, "<master fqdn>",
"must provide hostname of master to delete"),
"re-initialize": (0, 0, "", ""),
"force-sync": (0, 0, "", ""),
"set-renewal-master": (0, 1, "[master fqdn]", "")
}
def parse_options():
from optparse import OptionParser
parser = OptionParser(version=version.VERSION)
parser.add_option("-H", "--host", dest="host", help="starting host")
parser.add_option("-p", "--password", dest="dirman_passwd", help="Directory Manager password")
parser.add_option("-v", "--verbose", dest="verbose", action="store_true", default=False,
help="provide additional information")
parser.add_option("-f", "--force", dest="force", action="store_true", default=False,
help="ignore some types of errors")
parser.add_option("--from", dest="fromhost", help="Host to get data from")
options, args = parser.parse_args()
valid_syntax = False
if len(args):
n = len(args) - 1
k = commands.keys()
for cmd in k:
if cmd == args[0]:
v = commands[cmd]
err = None
if n < v[0]:
err = v[3]
elif n > v[1]:
err = "too many arguments"
else:
valid_syntax = True
if err:
parser.error("Invalid syntax: %s\nUsage: %s [options] %s" % (err, cmd, v[2]))
if not valid_syntax:
cmdstr = " | ".join(commands.keys())
parser.error("must provide a command [%s]" % cmdstr)
return options, args
def list_replicas(realm, host, replica, dirman_passwd, verbose):
peers = {}
try:
# connect to main IPA LDAP server
conn = ipaldap.IPAdmin(host, 636, cacert=CACERT)
conn.do_simple_bind(bindpw=dirman_passwd)
dn = DN(('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), ipautil.realm_to_suffix(realm))
entries = conn.get_entries(dn, conn.SCOPE_ONELEVEL)
for ent in entries:
try:
cadn = DN(('cn', 'CA'), DN(ent.dn))
entry = conn.get_entry(cadn)
peers[ent.single_value['cn']] = ['master', '']
except errors.NotFound:
peers[ent.single_value['cn']] = ['CA not configured', '']
except Exception as e:
sys.exit(
"Failed to get data from '%s' while trying to list replicas: %s" %
(host, e))
finally:
conn.unbind()
if not replica:
for k, p in peers.items():
print '%s: %s' % (k, p[0])
return
try:
repl = replication.get_cs_replication_manager(realm, replica, dirman_passwd)
except Exception as e:
sys.exit(str(e))
entries = repl.find_replication_agreements()
for entry in entries:
print '%s' % entry.single_value.get('nsds5replicahost')
if verbose:
print " last init status: %s" % entry.single_value.get(
'nsds5replicalastinitstatus')
print " last init ended: %s" % str(
ipautil.parse_generalized_time(
entry.single_value['nsds5replicalastinitend']))
print " last update status: %s" % entry.single_value.get(
'nsds5replicalastupdatestatus')
print " last update ended: %s" % str(
ipautil.parse_generalized_time(
entry.single_value['nsds5replicalastupdateend']))
def del_link(realm, replica1, replica2, dirman_passwd, force=False):
repl2 = None
try:
repl1 = replication.get_cs_replication_manager(realm, replica1, dirman_passwd)
repl1.hostnames = [replica1, replica2]
repl_list1 = repl1.find_replication_agreements()
# Find the DN of the replication agreement to remove
replica1_dn = None
for e in repl_list1:
if e.single_value.get('nsDS5ReplicaHost') == replica2:
replica1_dn = e.dn
break
if replica1_dn is None:
sys.exit("'%s' has no replication agreement for '%s'" % (replica1, replica2))
repl1.hostnames = [replica1, replica2]
except errors.NetworkError as e:
sys.exit("Unable to connect to %s: %s" % (replica1, e))
except Exception as e:
sys.exit("Failed to get data from '%s': %s" % (replica1, e))
try:
repl2 = replication.get_cs_replication_manager(realm, replica2, dirman_passwd)
repl2.hostnames = [replica1, replica2]
repl_list = repl2.find_replication_agreements()
# Now that we've confirmed that both hostnames are vaild, make sure
# that we aren't removing the last link from either side.
if not force and len(repl_list) <= 1:
print "Cannot remove the last replication link of '%s'" % replica2
print "Please use the 'del' command to remove it from the domain"
sys.exit(1)
if not force and len(repl_list1) <= 1:
print "Cannot remove the last replication link of '%s'" % replica1
print "Please use the 'del' command to remove it from the domain"
sys.exit(1)
# Find the DN of the replication agreement to remove
replica2_dn = None
for e in repl_list:
if e.single_value.get('nsDS5ReplicaHost') == replica1:
replica2_dn = e.dn
break
# This should never happen
if replica2_dn is None:
sys.exit("'%s' has no replication agreement for '%s'" % (replica1, replica2))
except errors.NotFound:
print "'%s' has no replication agreement for '%s'" % (replica2, replica1)
if not force:
return
except Exception as e:
print "Failed to get data from '%s': %s" % (replica2, e)
if not force:
sys.exit(1)
if repl2:
failed = False
try:
repl2.delete_agreement(replica1, replica2_dn)
repl2.delete_referral(replica1, repl1.port)
except Exception as e:
print "Unable to remove agreement on %s: %s" % (replica2, e)
failed = True
if failed:
if force:
print "Forcing removal on '%s'" % replica1
else:
sys.exit(1)
if not repl2 and force:
print "Forcing removal on '%s'" % replica1
repl1.delete_agreement(replica2, replica1_dn)
repl1.delete_referral(replica2, repl2.port)
print "Deleted replication agreement from '%s' to '%s'" % (replica1, replica2)
def del_master(realm, hostname, options):
force_del = False
delrepl = None
# 1. Connect to the local dogtag DS server
try:
thisrepl = replication.get_cs_replication_manager(realm, options.host,
options.dirman_passwd)
except Exception as e:
sys.exit("Failed to connect to server %s: %s" % (options.host, e))
# 2. Ensure we have an agreement with the master
if thisrepl.get_replication_agreement(hostname) is None:
sys.exit("'%s' has no replication agreement for '%s'" % (options.host, hostname))
# 3. Connect to the dogtag DS to be removed.
try:
delrepl = replication.get_cs_replication_manager(realm, hostname,
options.dirman_passwd)
except Exception as e:
if not options.force:
print "Unable to delete replica %s: %s" % (hostname, e)
sys.exit(1)
else:
print "Unable to connect to replica %s, forcing removal" % hostname
force_del = True
# 4. Get list of agreements.
if delrepl is None:
# server not up, just remove it from this server
replica_names = [options.host]
else:
replica_entries = delrepl.find_ipa_replication_agreements()
replica_names = [rep.single_value.get('nsds5replicahost')
for rep in replica_entries]
# 5. Remove each agreement
for r in replica_names:
try:
del_link(realm, r, hostname, options.dirman_passwd, force=True)
except Exception as e:
sys.exit("There were issues removing a connection: %s" % e)
# 6. Pick CA renewal master
ca = cainstance.CAInstance(api.env.realm, certs.NSS_DIR)
if ca.is_renewal_master(hostname):
ca.set_renewal_master(options.host)
# 7. And clean up the removed replica DNS entries if any.
try:
if bindinstance.dns_container_exists(options.host, api.env.basedn,
dm_password=options.dirman_passwd):
api.Backend.ldap2.connect(bind_dn=DN(('cn', 'Directory Manager')),
bind_pw=options.dirman_passwd)
bind = bindinstance.BindInstance()
bind.remove_ipa_ca_dns_records(hostname, realm.lower())
except Exception as e:
print "Failed to cleanup %s DNS entries: %s" % (hostname, e)
print "You may need to manually remove them from the tree"
def add_link(realm, replica1, replica2, dirman_passwd, options):
try:
repl2 = replication.get_cs_replication_manager(realm, replica2,
dirman_passwd)
except Exception as e:
sys.exit(str(e))
try:
conn = ipaldap.IPAdmin(replica2, 636, cacert=CACERT)
conn.do_simple_bind(bindpw=dirman_passwd)
dn = DN(('cn', 'CA'), ('cn', replica2), ('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'),
ipautil.realm_to_suffix(realm))
conn.get_entries(dn, conn.SCOPE_BASE)
conn.unbind()
except errors.NotFound:
sys.exit('%s does not have a CA configured.' % replica2)
except errors.NetworkError as e:
sys.exit("Unable to connect to %s: %s" % (ipautil.format_netloc(replica2, 636), str(e)))
except Exception as e:
sys.exit("Failed to get data while trying to bind to '%s': %s" % (replica1, str(e)))
try:
repl1 = replication.get_cs_replication_manager(realm, replica1,
dirman_passwd)
entries = repl1.find_replication_agreements()
for e in entries:
if e.single_value.get('nsDS5ReplicaHost') == replica2:
sys.exit('This replication agreement already exists.')
repl1.hostnames = [replica1, replica2]
except errors.NotFound:
sys.exit("Cannot find replica '%s'" % replica1)
except errors.NetworkError as e:
sys.exit("Unable to connect to %s: %s" % (replica1, e))
except Exception as e:
sys.exit(
"Failed to get data from '%s' while trying to get current "
"agreements: %s" % (replica1, e))
repl1.setup_replication(
replica2, repl2.port, 0, DN(('cn', 'Directory Manager')),
dirman_passwd, is_cs_replica=True, local_port=repl1.port)
print "Connected '%s' to '%s'" % (replica1, replica2)
def re_initialize(realm, options):
if not options.fromhost:
sys.exit("re-initialize requires the option --from <host name>")
thishost = installutils.get_fqdn()
try:
repl = replication.get_cs_replication_manager(realm, options.fromhost,
options.dirman_passwd)
thisrepl = replication.get_cs_replication_manager(realm, thishost,
options.dirman_passwd)
except Exception as e:
sys.exit(str(e))
filter = repl.get_agreement_filter(host=thishost)
try:
entry = repl.conn.get_entries(
DN(('cn', 'config')), repl.conn.SCOPE_SUBTREE, filter)
except errors.NotFound:
root_logger.error("Unable to find %s -> %s replication agreement" % (options.fromhost, thishost))
sys.exit(1)
if len(entry) > 1:
root_logger.error("Found multiple agreements for %s. Only initializing the first one returned: %s" % (thishost, entry[0].dn))
repl.hostnames = thisrepl.hostnames = [thishost, options.fromhost]
thisrepl.enable_agreement(options.fromhost)
repl.enable_agreement(thishost)
repl.initialize_replication(entry[0].dn, repl.conn)
repl.wait_for_repl_init(repl.conn, entry[0].dn)
def force_sync(realm, thishost, fromhost, dirman_passwd):
try:
repl = replication.get_cs_replication_manager(realm, fromhost,
dirman_passwd)
repl.force_sync(repl.conn, thishost)
except Exception as e:
sys.exit(str(e))
def set_renewal_master(realm, replica):
if not replica:
replica = installutils.get_fqdn()
ca = cainstance.CAInstance(realm, certs.NSS_DIR)
if ca.is_renewal_master(replica):
sys.exit("%s is already the renewal master" % replica)
try:
ca.set_renewal_master(replica)
except Exception as e:
sys.exit("Failed to set renewal master to %s: %s" % (replica, e))
print "%s is now the renewal master" % replica
def main():
options, args = parse_options()
# Just initialize the environment. This is so the installer can have
# access to the plugin environment
api_env = {'in_server' : True,
'verbose' : options.verbose,
}
if os.getegid() != 0:
api_env['log'] = None # turn off logging for non-root
api.bootstrap(**api_env)
api.finalize()
dirman_passwd = None
realm = api.env.realm
if options.host:
host = options.host
else:
host = installutils.get_fqdn()
options.host = host
if options.dirman_passwd:
dirman_passwd = options.dirman_passwd
else:
dirman_passwd = installutils.read_password("Directory Manager", confirm=False,
validate=False, retry=False)
if dirman_passwd is None:
sys.exit("Directory Manager password required")
options.dirman_passwd = dirman_passwd
if args[0] == "list":
replica = None
if len(args) == 2:
replica = args[1]
list_replicas(realm, host, replica, dirman_passwd, options.verbose)
elif args[0] == "del":
del_master(realm, args[1], options)
elif args[0] == "re-initialize":
re_initialize(realm, options)
elif args[0] == "force-sync":
if not options.fromhost:
sys.exit("force-sync requires the option --from <host name>")
force_sync(realm, host, options.fromhost, options.dirman_passwd)
elif args[0] == "connect":
if len(args) == 3:
replica1 = args[1]
replica2 = args[2]
elif len(args) == 2:
replica1 = host
replica2 = args[1]
add_link(realm, replica1, replica2, dirman_passwd, options)
elif args[0] == "disconnect":
if len(args) == 3:
replica1 = args[1]
replica2 = args[2]
elif len(args) == 2:
replica1 = host
replica2 = args[1]
del_link(realm, replica1, replica2, dirman_passwd, options.force)
elif args[0] == 'set-renewal-master':
replica = None
if len(args) > 1:
replica = args[1]
set_renewal_master(realm, replica)
try:
main()
except KeyboardInterrupt:
sys.exit(1)
except SystemExit as e:
sys.exit(e)
except Exception as e:
sys.exit("unexpected error: %s" % e)
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