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#!/usr/bin/python
#
# Unix SMB/CIFS implementation.
# provision a Samba4 server
# Copyright (C) Andrew Tridgell 2005
# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007
#   
# 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 getopt
import optparse
import sys

# Add path to the library for in-tree use
sys.path.append("scripting/python")

import samba

from auth import system_session
import samba.getopt as options
import param
from samba.provision import (provision, provision_guess, 
                             provision_default_paths, provision_ldapbase, 
                             provision_dns)

parser = optparse.OptionParser("provision [options]")
parser.add_option_group(options.SambaOptions(parser))
parser.add_option_group(options.VersionOptions(parser))
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option("--setupdir", type="string", metavar="DIR", 
		help="directory with setup files")
parser.add_option("--realm", type="string", metavar="REALM", help="set realm")
parser.add_option("--domain", type="string", metavar="DOMAIN",
				  help="set domain")
parser.add_option("--domain-guid", type="string", metavar="GUID", 
		help="set domainguid (otherwise random)")
parser.add_option("--domain-sid", type="string", metavar="SID", 
		help="set domainsid (otherwise random)")
parser.add_option("--policy-guid", type="string", metavar="GUID",
				  help="set policy guid")
parser.add_option("--host-name", type="string", metavar="HOSTNAME", 
		help="set hostname")
parser.add_option("--host-ip", type="string", metavar="IPADDRESS", 
		help="set ipaddress")
parser.add_option("--host-guid", type="string", metavar="GUID", 
		help="set hostguid (otherwise random)")
parser.add_option("--invocationid", type="string", metavar="GUID", 
		help="set invocationid (otherwise random)")
parser.add_option("--adminpass", type="string", metavar="PASSWORD", 
		help="choose admin password (otherwise random)")
parser.add_option("--krbtgtpass", type="string", metavar="PASSWORD", 
		help="choose krbtgt password (otherwise random)")
parser.add_option("--machinepass", type="string", metavar="PASSWORD", 
		help="choose machine password (otherwise random)")
parser.add_option("--dnspass", type="string", metavar="PASSWORD", 
		help="choose dns password (otherwise random)")
parser.add_option("--root", type="string", metavar="USERNAME", 
		help="choose 'root' unix username")
parser.add_option("--nobody", type="string", metavar="USERNAME", 
		help="choose 'nobody' user")
parser.add_option("--nogroup", type="string", metavar="GROUPNAME", 
		help="choose 'nogroup' group")
parser.add_option("--wheel", type="string", metavar="GROUPNAME", 
		help="choose 'wheel' privileged group")
parser.add_option("--users", type="string", metavar="GROUPNAME", 
		help="choose 'users' group")
parser.add_option("--quiet", help="Be quiet", action="store_true")
parser.add_option("--blank", 
		help="do not add users or groups, just the structure")
parser.add_option("--ldap-base", 
		help="output only an LDIF file, suitable for creating an LDAP baseDN",
        action="store_true")
parser.add_option("--ldap-backend", type="string", metavar="LDAPSERVER", 
		help="LDAP server to use for this provision")
parser.add_option("--ldap-module=", type="string", metavar="MODULE", 
		help="LDB mapping module to use for the LDAP backend")
parser.add_option("--aci", type="string", metavar="ACI", 
		help="An arbitary LDIF fragment, particularly useful to loading a backend ACI value into a target LDAP server. You must provide at least a realm and domain")
parser.add_option("--server-role", type="choice", metavar="ROLE",
		          choices=["domain controller", "domain server"],
		help="Set server role to provision for (default standalone)")
parser.add_option("--partitions-only", 
		help="Configure Samba's partitions, but do not modify them (ie, join a BDC)", action="store_true")

opts = parser.parse_args()[0]

def message(text):
	"""print a message if quiet is not set."""
	if not opts.quiet:
		print text

hostname = opts.host_name

if opts.realm is None or opts.domain is None or opts.host_name is None:
	if opts.realm is None:
		print >>sys.stderr, "No realm set"
	if opts.domain is None:
		print >>sys.stderr, "No domain set"
	if opts.host_name is None:
		print >>sys.stderr, "No host name set"
	parser.print_usage()
	sys.exit(1)

# cope with an initially blank smb.conf 
lp = param.LoadParm()
lp.load(opts.configfile)
lp.set("realm", opts.realm)
lp.set("workgroup", opts.domain)
lp.set("server role", opts.server_role)

subobj = provision_guess(lp)
subobj.domain_guid = opts.domain_guid
subobj.host_guid = opts.host_guid

if opts.aci is not None:
	print "set ACI: %s" % subobj.aci

print "set domain sid: %s" % subobj.domainsid
paths = provision_default_paths(lp, subobj)
paths.smbconf = opts.configfile
subobj.fix(paths);

if opts.ldap_backend:
	if opts.ldap_backend == "ldapi":
		subobj.ldap_backend = subobj.ldapi_uri

	if not opts.ldap_module:
		subobj.ldapmodule = "entryuuid"

	subobj.domaindn_ldb = subobj.ldap_backend
	subobj.domaindn_mod2 = ",%s,paged_searches" % subobj.ldapmodule
	subobj.configdn_ldb = subobj.ldap_backend
	subobj.configdn_mod2 = ",%s,paged_searches" % subobj.ldapmodule
	subobj.schemadn_ldb = subobj.ldap_backend
	subobj.schemadn_mod2 = ",%s,paged_searches" % subobj.ldapmodule
	message("LDAP module: %s on backend: %s" % (subobj.ldapmodule, subobj.ldap_backend))

subobj.validate(lp)

creds = credopts.get_credentials()
message("Provisioning for %s in realm %s" % (subobj.domain, subobj.realm))
message("Using administrator password: %s" % subobj.adminpass)

setup_dir = opts.setupdir
if setup_dir is None:
	setup_dir = "setup"
if opts.ldap_base:
	provision_ldapbase(setup_dir, subobj, message, paths)
	message("Please install the LDIF located in %s, %s and  into your LDAP server, and re-run with --ldap-backend=ldap://my.ldap.server" % (paths.ldap_basedn_ldif, paths.ldap_config_basedn_ldif, paths.ldap_schema_basedn_ldif))
elif opts.partitions_only:
    provision_become_dc(setup_dir, subobj, message, False, 
                        paths, lp, system_session(), creds)
else:
    provision(lp, setup_dir, subobj, message, opts.blank, paths, 
              system_session(), creds, opts.ldap_backend)
    provision_dns(setup_dir, subobj, message, paths, system_session(), creds)
    message("To reproduce this provision, run with:")
    def shell_escape(arg):
        if " " in arg:
            return '"%s"' % arg
        return arg
    message(" ".join([shell_escape(arg) for arg in sys.argv]))

message("All OK")