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119 lines
4.5 KiB
Python
119 lines
4.5 KiB
Python
# Authors:
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# Rob Crittenden <rcritten@redhat.com>
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#
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# Copyright (C) 2012 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import pwd
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from ipapython import ipaldap
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from ipaserver.install.plugins import MIDDLE
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from ipaserver.install.plugins.baseupdate import PreUpdate
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from ipaserver.install import replication
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from ipalib import api
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EXCLUDE_TEMPLATE = '(objectclass=*) $ EXCLUDE %s'
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class update_replica_attribute_lists(PreUpdate):
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"""
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Run through all replication agreements and ensure that EXCLUDE list
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has all the required attributes so that we don't cause replication
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storms.
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"""
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order = MIDDLE
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def execute(self, **options):
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# We need an IPAdmin connection to the backend
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self.log.debug("Start replication agreement exclude list update task")
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conn = ipaldap.IPAdmin(api.env.host, ldapi=True, realm=api.env.realm)
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conn.do_external_bind(pwd.getpwuid(os.geteuid()).pw_name)
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repl = replication.ReplicationManager(api.env.realm, api.env.host,
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None, conn=conn)
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# We need to update only IPA replica agreements, not winsync
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ipa_replicas = repl.find_ipa_replication_agreements()
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self.log.debug("Found %d agreement(s)", len(ipa_replicas))
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for replica in ipa_replicas:
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self.log.debug(replica.single_value.get('description'))
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self._update_attr(repl, replica,
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'nsDS5ReplicatedAttributeList',
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replication.EXCLUDES, template=EXCLUDE_TEMPLATE)
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self._update_attr(repl, replica,
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'nsDS5ReplicatedAttributeListTotal',
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replication.TOTAL_EXCLUDES, template=EXCLUDE_TEMPLATE)
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self._update_attr(repl, replica,
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'nsds5ReplicaStripAttrs', replication.STRIP_ATTRS)
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self.log.debug("Done updating agreements")
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return (False, False, []) # No restart, no apply now, no updates
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def _update_attr(self, repl, replica, attribute, values, template='%s'):
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"""Add or update an attribute of a replication agreement
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If the attribute doesn't already exist, it is added and set to
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`template` with %s substituted by a space-separated `values`.
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If the attribute does exist, `values` missing from it are just
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appended to the end, also space-separated.
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:param repl: Replication manager
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:param replica: Replica agreement
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:param attribute: Attribute to add or update
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:param values: List of values the attribute should hold
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:param template: Template to use when adding attribute
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"""
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attrlist = replica.single_value.get(attribute)
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if attrlist is None:
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self.log.debug("Adding %s", attribute)
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# Need to add it altogether
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replica[attribute] = [template % " ".join(values)]
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try:
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repl.conn.update_entry(replica)
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self.log.debug("Updated")
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except Exception, e:
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self.log.error("Error caught updating replica: %s", str(e))
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else:
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attrlist_normalized = attrlist.lower().split()
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missing = [a for a in values
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if a.lower() not in attrlist_normalized]
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if missing:
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self.log.debug("%s needs updating (missing: %s)", attribute,
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', '.join(missing))
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replica[attribute] = [
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'%s %s' % (attrlist, ' '.join(missing))]
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try:
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repl.conn.update_entry(replica)
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self.log.debug("Updated %s", attribute)
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except Exception, e:
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self.log.error("Error caught updating %s: %s",
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attribute, str(e))
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else:
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self.log.debug("%s: No update necessary" % attribute)
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api.register(update_replica_attribute_lists)
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