source4/torture/drs/python/repl_schema.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 #
   4 # Tests various schema replication scenarios
   5 #
   6 # Copyright (C) Kamen Mazdrashki <kamenim@samba.org> 2010
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 #
  23 # Usage:
  24 #  export DC1=dc1_dns_name
  25 #  export DC2=dc2_dns_name
  26 #  export SUBUNITRUN=$samba4srcdir/scripting/bin/subunitrun
  27 #  PYTHONPATH="$PYTHONPATH:$samba4srcdir/torture/drs/python" $SUBUNITRUN repl_schema -U"$DOMAIN/$DC_USERNAME"%"$DC_PASSWORD"
  28 #
  29
  30 import sys
  31 import time
  32 import random
  33 import os
  34
  35 sys.path.append("bin/python")
  36 import samba
  37 samba.ensure_external_module("testtools", "testtools")
  38 samba.ensure_external_module("subunit", "subunit/python")
  39
  40 from ldb import (
  41     LdbError,
  42     SCOPE_BASE,
  43     Message,
  44     FLAG_MOD_ADD,
  45     FLAG_MOD_REPLACE,
  46     )
  47
  48 import samba.tests
  49
  50
  51 class DrsReplSchemaTestCase(samba.tests.TestCase):
  52
  53     # prefix for all objects created
  54     obj_prefix = None
  55
  56     def setUp(self):
  57         super(DrsReplSchemaTestCase, self).setUp()
  58
  59         # connect to DCs
  60         url_dc = samba.tests.env_get_var_value("DC1")
  61         (self.ldb_dc1, self.info_dc1) = samba.tests.connect_samdb_ex(url_dc,
  62                                                                      ldap_only=True)
  63         url_dc = samba.tests.env_get_var_value("DC2")
  64         (self.ldb_dc2, self.info_dc2) = samba.tests.connect_samdb_ex(url_dc,
  65                                                                      ldap_only=True)
  66
  67         # initialize objects prefix if not done yet
  68         if self.obj_prefix is None:
  69             t = time.strftime("%s", time.gmtime())
  70             DrsReplSchemaTestCase.obj_prefix = "DrsReplSchema-%s-" % t
  71
  72         # cache some of RootDSE props
  73         self.schema_dn = self.info_dc1["schemaNamingContext"][0]
  74         self.domain_dn = self.info_dc1["defaultNamingContext"][0]
  75         self.config_dn = self.info_dc1["configurationNamingContext"][0]
  76         self.forest_level = int(self.info_dc1["forestFunctionality"][0])
  77
  78         # we will need DCs DNS names for 'samba-tool drs' command
  79         self.dnsname_dc1 = self.info_dc1["dnsHostName"][0]
  80         self.dnsname_dc2 = self.info_dc2["dnsHostName"][0]
  81
  82     def tearDown(self):
  83         super(DrsReplSchemaTestCase, self).tearDown()
  84
  85     def _net_drs_replicate(self, DC, fromDC, nc_dn):
  86         """Triggers replication cycle on 'DC' to
  87            replicate from 'fromDC'. Naming context to
  88            be replicated is 'nc_dn' dn"""
  89         # find out where is net command
  90         samba_tool_cmd = os.path.abspath("./bin/samba-tool")
  91         # make command line credentials string
  92         creds = samba.tests.cmdline_credentials
  93         cmd_line_auth = "-U%s/%s%%%s" % (creds.get_domain(),
  94                                          creds.get_username(), creds.get_password())
  95         # bin/samba-tool drs replicate <Dest_DC_NAME> <Src_DC_NAME> <Naming Context>
  96         cmd_line = "%s drs replicate %s %s %s %s" % (samba_tool_cmd, DC, fromDC,
  97                                                      nc_dn, cmd_line_auth)
  98         ret = os.system(cmd_line)
  99         self.assertEquals(ret, 0, "Replicating %s from %s has failed!" % (DC, fromDC))
 100
 101     def _GUID_string(self, guid):
 102         return self.ldb_dc1.schema_format_value("objectGUID", guid)
 103
 104     def _ldap_schemaUpdateNow(self, sam_db):
 105         rec = {"dn": "",
 106                "schemaUpdateNow": "1"}
 107         m = Message.from_dict(sam_db, rec, FLAG_MOD_REPLACE)
 108         sam_db.modify(m)
 109
 110     def _make_obj_names(self, base_name):
 111         '''Try to create a unique name for an object
 112            that is to be added to schema'''
 113         obj_name = self.obj_prefix + base_name
 114         obj_ldn = obj_name.replace("-", "")
 115         obj_dn = "CN=%s,%s" % (obj_name, self.schema_dn)
 116         return (obj_dn, obj_name, obj_ldn)
 117
 118     def _schema_new_class(self, ldb_ctx, base_name, attrs=None):
 119         (class_dn, class_name, class_ldn) = self._make_obj_names(base_name)
 120         rec = {"dn": class_dn,
 121                "objectClass": ["top", "classSchema"],
 122                "cn": class_name,
 123                "lDAPDisplayName": class_ldn,
 124                "governsId": "1.2.840." + str(random.randint(1,100000)) + ".1.5.13",
 125                "instanceType": "4",
 126                "objectClassCategory": "1",
 127                "subClassOf": "organizationalPerson",
 128                "systemOnly": "FALSE"}
 129         # allow overriding/adding attributes
 130         if not attrs is None:
 131             rec.update(attrs)
 132         # add it to the Schema
 133         ldb_ctx.add(rec)
 134         self._ldap_schemaUpdateNow(ldb_ctx)
 135         return (rec["lDAPDisplayName"], rec["dn"])
 136
 137     def _schema_new_attr(self, ldb_ctx, base_name, attrs=None):
 138         (attr_dn, attr_name, attr_ldn) = self._make_obj_names(base_name)
 139         rec = {"dn": attr_dn,
 140                "objectClass": ["top", "attributeSchema"],
 141                "cn": attr_name,
 142                "lDAPDisplayName": attr_ldn,
 143                "attributeId": "1.2.841." + str(random.randint(1,100000)) + ".1.5.13",
 144                "attributeSyntax": "2.5.5.12",
 145                "omSyntax": "64",
 146                "instanceType": "4",
 147                "isSingleValued": "TRUE",
 148                "systemOnly": "FALSE"}
 149         # allow overriding/adding attributes
 150         if not attrs is None:
 151             rec.update(attrs)
 152         # add it to the Schema
 153         ldb_ctx.add(rec)
 154         self._ldap_schemaUpdateNow(ldb_ctx)
 155         return (rec["lDAPDisplayName"], rec["dn"])
 156
 157     def _check_object(self, obj_dn):
 158         '''Check if object obj_dn exists on both DCs'''
 159         res_dc1 = self.ldb_dc1.search(base=obj_dn,
 160                                       scope=SCOPE_BASE,
 161                                       attrs=["*"])
 162         self.assertEquals(len(res_dc1), 1,
 163                           "%s doesn't exists on %s" % (obj_dn, self.dnsname_dc1))
 164         try:
 165             res_dc2 = self.ldb_dc2.search(base=obj_dn,
 166                                           scope=SCOPE_BASE,
 167                                           attrs=["*"])
 168         except LdbError, (enum, estr):
 169             if enum == ERR_NO_SUCH_OBJECT:
 170                 self.fail("%s doesn't exists on %s" % (obj_dn, self.dnsname_dc2))
 171             raise
 172         self.assertEquals(len(res_dc2), 1,
 173                           "%s doesn't exists on %s" % (obj_dn, self.dnsname_dc2))
 174
 175     def test_all(self):
 176         """Basic plan is to create bunch of classSchema
 177            and attributeSchema objects, replicate Schema NC
 178            and then check all objects are replicated correctly"""
 179
 180         # add new classSchema object
 181         (c_ldn, c_dn) = self._schema_new_class(self.ldb_dc1, "cls-A")
 182         # add new attributeSchema object
 183         (a_ldn, a_dn) = self._schema_new_attr(self.ldb_dc1, "attr-A")
 184
 185         # add attribute to the class we have
 186         m = Message.from_dict(self.ldb_dc1,
 187                               {"dn": c_dn,
 188                                "mayContain": a_ldn},
 189                               FLAG_MOD_ADD)
 190         self.ldb_dc1.modify(m)
 191
 192         # force replication from DC1 to DC2
 193         self._net_drs_replicate(DC=self.dnsname_dc2, fromDC=self.dnsname_dc1, nc_dn=self.schema_dn)
 194
 195         # check objects are replicated
 196         self._check_object(c_dn)
 197         self._check_object(a_dn)