Attachment 5965 Details for Bug 35170 – fake_replication_init.patch

[patch] fake_replication_init.patch

fake_replication_init.patch (text/plain), 10.14 KB, created by Felix Botner on 2014-06-19 17:38:54 CEST

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Creator: Felix Botner

Created: 2014-06-19 17:38:54 CEST

Size: 10.14 KB

patch

obsolete

>Index: python/univention-get-ldif-from-master.py
>===================================================================
>--- python/univention-get-ldif-from-master.py	(Revision 0)
>+++ python/univention-get-ldif-from-master.py	(Revision 51193)
>@@ -0,0 +1,137 @@
>+#!/usr/bin/python2.6
>+# -*- coding: utf-8 -*-
>+#
>+# Univention Directory Listener
>+"""Read ldap from the DC master and create ldif file (and update local schema)"""
>+#
>+# Copyright 2004-2014 Univention GmbH
>+#
>+# http://www.univention.de/
>+#
>+# All rights reserved.
>+#
>+# The source code of this program is made available
>+# under the terms of the GNU Affero General Public License version 3
>+# (GNU AGPL V3) as published by the Free Software Foundation.
>+#
>+# Binary versions of this program provided by Univention to you as
>+# well as other copyrighted, protected or trademarked materials like
>+# Logos, graphics, fonts, specific documentations and configurations,
>+# cryptographic keys etc. are subject to a license agreement between
>+# you and Univention and not subject to the GNU AGPL V3.
>+#
>+# In the case you use this program under the terms of the GNU AGPL V3,
>+# the program is provided 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 Affero General Public License for more details.
>+#
>+# You should have received a copy of the GNU Affero General Public
>+# License with the Debian GNU/Linux or Univention distribution in file
>+# /usr/share/common-licenses/AGPL-3; if not, see
>+# <http://www.gnu.org/licenses/>.
>+
>+import univention.uldap as uldap
>+import univention.config_registry
>+
>+import ldap
>+import ldif
>+import sys
>+import os
>+import optparse
>+
>+from ldap.controls import LDAPControl
>+from ldap.controls import SimplePagedResultsControl
>+
>+sys.path.append("/usr/lib/univention-directory-listener/system/") 
>+import replication
>+
>+# from replication.py
>+def _update_schema(attr):
>+	fp = open('/var/lib/univention-ldap/schema.conf.new', 'w')
>+	print >>fp, '# This schema was automatically replicated from the master server'
>+	print >>fp, '# Please do not edit this file\n'
>+	subschema = ldap.schema.SubSchema(attr)
>+	for oid in replication.subschema_sort(subschema, ldap.schema.AttributeType):
>+		if oid in replication.BUILTIN_OIDS:
>+			continue
>+		obj = subschema.get_obj(ldap.schema.AttributeType, oid)
>+		print >>fp, 'attributetype', str(obj)
>+	for oid in replication.subschema_sort(subschema, ldap.schema.ObjectClass):
>+		if oid in replication.BUILTIN_OIDS:
>+			continue
>+		obj = subschema.get_obj(ldap.schema.ObjectClass, oid)
>+		print >>fp, 'objectclass', str(obj)
>+	fp.close()
>+	os.rename('/var/lib/univention-ldap/schema.conf.new', '/var/lib/univention-ldap/schema.conf')
>+
>+# update the ldap schema file
>+def update_schema(lo):
>+	res = lo.search(base="cn=Subschema", scope=ldap.SCOPE_BASE, filter='(objectclass=*)', attr=['+', '*'])
>+	for r in res:
>+		dn, data = r
>+		_update_schema(data)
>+
>+# create ldif file from everything from lo
>+def create_ldif_from_master(lo, ldif_file, base, page_size):
>+
>+	if os.path.isfile(ldif_file):
>+		os.unlink(ldif_file)
>+
>+	lc = SimplePagedResultsControl(
>+		ldap.LDAP_CONTROL_PAGE_OID, True, (page_size,'')
>+	)
>+
>+	msgid = lo.lo.search_ext(base, ldap.SCOPE_SUBTREE, '(objectclass=*)', ['+', '*'], serverctrls=[lc])
>+	fh = open(ldif_file, "w")
>+	while True:
>+		rtype, rdata, rmsgid, serverctrls = lo.lo.result3(msgid)
>+		for i in rdata:
>+			dn, data = i
>+			fh.write(ldif.CreateLDIF(dn, data))
>+		fh.close()
>+		pctrls = [
>+			c
>+			for c in serverctrls
>+			if c.controlType == ldap.LDAP_CONTROL_PAGE_OID
>+		]
>+		if pctrls:
>+			est, cookie = pctrls[0].controlValue
>+			if cookie:
>+				lc.controlValue = (page_size, cookie)
>+				msgid = lo.lo.search_ext(base, ldap.SCOPE_SUBTREE, filter, attrs, serverctrls=[lc])
>+			else:
>+				break
>+		else:
>+			print "Warning:  Server ignores RFC 2696 control."
>+			break
>+	fh.close()
>+
>+if __name__ == "__main__":
>+
>+	usage = "usage: %prog [options]\n"
>+	parser = optparse.OptionParser(usage=usage)
>+	parser.add_option("-l", "--ldif", dest="ldif", action="store_true", default=False, help="create ldif file")
>+	parser.add_option("-s", "--schema", dest="schema", action="store_true", default=False, help="update ldap schema")
>+	parser.add_option("-o", "--outfile", dest="outfile", default="/var/lib/univention-directory-listener/master.ldif", help="file to store ldif data")
>+	parser.add_option("-p", "--pagesize", dest="pagesize", type="int", default=10000, help="page size to use for ldap paged search")
>+	opts, args = parser.parse_args()
>+
>+	ucr = univention.config_registry.ConfigRegistry()
>+	ucr.load()
>+	base = ucr.get("ldap/base")
>+	lo = uldap.getMachineConnection(ldap_master = True)
>+
>+	if opts.schema:
>+		sys.stdout.write("updating schema ...")
>+		sys.stdout.flush()
>+		update_schema(lo)
>+		sys.stdout.write(" OK\n")
>+
>+	if opts.ldif:
>+		sys.stdout.write("creating ldif file %s ..." % opts.outfile)
>+		sys.stdout.flush()
>+		create_ldif_from_master(lo, opts.outfile, base, opts.pagesize)
>+		sys.stdout.write(" OK\n")
>+
>+	sys.exit(0)
>
>EigenschaftsÃ¤nderungen: python/univention-get-ldif-from-master.py
>___________________________________________________________________
>HinzugefÃ¼gt: svn:executable
>   + *
>
>Index: 03univention-directory-listener.inst
>===================================================================
>--- 03univention-directory-listener.inst	(Revision 51192)
>+++ 03univention-directory-listener.inst	(Revision 51193)
>@@ -80,8 +80,62 @@
> fi
> options="$options -ZZ -d $debugLevel"
> 
>-options="$options -i -h $ldap_master -b "$ldap_base" -m $moduledir -c $cachedir"
>+# 1: fake replication.py initialization on non master systems
>+# init the listener without replication.py, instead slapadd a ldif
>+# file to the local ldap
>+if [ -n "$server_role" -a "$server_role" != "domaincontroller_master" ]; then
>+	invoke-rc.d slapd stop
>+	invoke-rc.d univention-directory-listener stop
> 
>+	# update schema
>+	/usr/share/univention-directory-listener/univention-get-ldif-from-master.py -s
>+
>+	# get and store notifier id to get changes during initialization
>+	notifier_id_master="$(/usr/share/univention-directory-listener/get_notifier_id.py)" || exit 1
>+
>+	# check if we use a pre-defined ldif or if we create the ldif
>+	def_notifier_id="$(ucr get listener/join/notifier/id)"
>+	def_ldif="$(ucr get listener/join/ldif/file)"
>+	if [ -n "$def_ldif" -a -n "$def_notifier_id" -a -e "$def_ldif" ]; then
>+		# use local ldif file and defined id
>+		echo "using pre-defined ldif and notifier id"
>+		notifier_id="$def_notifier_id"
>+		ldif="$def_ldif"
>+		
>+	else
>+		echo "creating ldif file"
>+		notifier_id="$notifier_id_master"
>+		ldif="/var/lib/univention-directory-listener/master.ldif"
>+		/usr/share/univention-directory-listener/univention-get-ldif-from-master.py -l -o "$ldif"
>+	fi
>+
>+	echo "using $ldif as ldif file for fake replication.py initialization"
>+	echo "using $notifier_id as notifier_id file for fake replication.py initialization"
>+
>+	# set notifier id
>+	echo $notifier_id > /var/lib/univention-directory-listener/notifier_id
>+	chown listener /var/lib/univention-directory-listener/notifier_id
>+
>+	# update local ldap 
>+	rm /var/lib/univention-ldap/ldap/*
>+	ucr commit /var/lib/univention-ldap/ldap/DB_CONFIG
>+	slapadd -q -l "$ldif" || exit 1
>+	sync
>+	invoke-rc.d slapd start
>+	#rm "$ldif"
>+
>+	# fake replication handler initialization
>+	mkdir -p /var/lib/univention-directory-listener/handlers/
>+	echo 3 > /var/lib/univention-directory-listener/handlers/replication
>+	chown -R listener /var/lib/univention-directory-listener/handlers/
>+
>+	# fake listener initialization (-P)
>+	options="$options -P -h $ldap_master -b "$ldap_base" -m $moduledir -c $cachedir"
>+else
>+	# real listener initialization
>+	options="$options -i -h $ldap_master -b "$ldap_base" -m $moduledir -c $cachedir"
>+fi
>+
> if [ -n "$server_role" ]; then
> 	if [ "$server_role" = "domaincontroller_master" -o "$server_role" = "domaincontroller_backup" ]; then
> 		/usr/sbin/univention-directory-listener $options -D "cn=admin,$ldap_base" -y /etc/ldap.secret
>@@ -94,6 +148,18 @@
> 
> exit_status=$?
> 
>+# 2: fake replication.py initialization on non master systems
>+# copy listener cache (if defined), because cache without replication.py
>+# is not fully filled
>+if [ -n "$server_role" -a "$server_role" != "domaincontroller_master" ]; then
>+	lcache="$(ucr get listener/join/cache/file)"
>+	if [ -n "$lcache" -a -e "$lcache" ]; then
>+		cp "$lcache" /var/lib/univention-directory-listener/cache.db
>+		chown listener:nogroup /var/lib/univention-directory-listener/cache.db
>+		chmod 600 /var/lib/univention-directory-listener/cache.db
>+	fi
>+fi
>+
> univention-config-registry set ldap/database/ldbm/dbsync=$ldap_database_ldbm_dbsync
> 
> # needed for db sync
>@@ -118,6 +184,27 @@
> # The samba join script needs a running listener. Bug #19128
> /etc/init.d/univention-directory-listener start
> 
>+# 3: fake replication.py initialization on non master systems
>+# wait until local notifier id is equal to notifier id of the master
>+# before the fake replication.py
>+# otherwise if we use listener/join/notifier/id we could miss 
>+# the password change for the local host account
>+if [ -n "$server_role" -a "$server_role" != "domaincontroller_master" ]; then
>+	while true; do
>+		echo "waiting for replication"
>+		lid="$(cat /var/lib/univention-directory-listener/notifier_id)"
>+		if [ 1 -eq $(echo "$lid >= $notifier_id_master" | bc) ]; then
>+			break
>+		fi
>+		# wait for max 2hrs
>+		timeout=$(($timeout + 1))
>+		if [ $timeout -ge 7200 ]; then
>+			break
>+		fi
>+		sleep 1
>+	done
>+fi
>+
> test -x /usr/sbin/nscd && /usr/sbin/nscd -i passwd
> test -x /usr/sbin/nscd && /usr/sbin/nscd -i group
> 
>Index: debian/univention-directory-listener.install
>===================================================================
>--- debian/univention-directory-listener.install	(Revision 51192)
>+++ debian/univention-directory-listener.install	(Revision 51193)
>@@ -3,6 +3,7 @@
> src/verify usr/sbin/
> src/listener-ctrl usr/sbin/
> python/get_notifier_id.py usr/share/univention-directory-listener/
>+python/univention-get-ldif-from-master.py usr/share/univention-directory-listener/
> python/ldap_server.py usr/lib/univention-directory-listener/system/
> python/listener.py usr/lib/python2.6/site-packages/
> 03univention-directory-listener.inst usr/lib/univention-install/

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Attachments on bug 35170: 5965