def test_modify_replicated_attributes(self):
        # some timestamp ones
        dn = 'CN=Guest,CN=Users,' + self.base_dn
        value = 'hallooo'
        for attr in ['carLicense', 'middleName']:
            msg = ldb.Message()
            msg.dn = ldb.Dn(self.samdb, dn)
            msg[attr] = ldb.MessageElement(value,
                                           ldb.FLAG_MOD_REPLACE,
                                           attr)
            try:
                self.samdb.modify(msg)
                self.fail("Failed to fail to modify %s %s" % (dn, attr))
            except ldb.LdbError as e1:
                (ecode, emsg) = e1.args
                if ecode != ldb.ERR_REFERRAL:
                    self.fail("Failed to REFER when trying to modify %s %s" %
                              (dn, attr))
                else:
                    m = re.search(r'(ldap://[^>]+)>', emsg)
                    if m is None:
                        self.fail("referral seems not to refer to anything")
                    address = m.group(1)

                    try:
                        tmpdb = SamDB(address, credentials=CREDS,
                                      session_info=system_session(LP), lp=LP)
                        tmpdb.modify(msg)
                    except ldb.LdbError as e:
                        self.fail("couldn't modify referred location %s" %
                                  address)

                    if address.lower().startswith(self.samdb.domain_dns_name()):
                        self.fail("referral address did not give a specific DC")

    def run(self, accountname, principal, H=None, credopts=None, sambaopts=None,
            versionopts=None):

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)
        paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
        if H == None:
            path = paths.samdb
        else:
            path = H

        sam = SamDB(path, session_info=system_session(),
                    credentials=creds, lp=lp)
        # TODO once I understand how, use the domain info to naildown
        # to the correct domain
        (cleanedaccount, realm, domain) = _get_user_realm_domain(accountname)

        res = sam.search(expression="sAMAccountName=%s" %
                         ldb.binary_encode(cleanedaccount),
                         scope=ldb.SCOPE_SUBTREE,
                         attrs=["msDS-AllowedToDelegateTo"])
        if len(res) == 0:
            raise CommandError("Unable to find account name '%s'" % accountname)
        assert(len(res) == 1)

        msg = ldb.Message()
        msg.dn = res[0].dn
        msg["msDS-AllowedToDelegateTo"] = ldb.MessageElement([principal],
                                          ldb.FLAG_MOD_DELETE,
                                          "msDS-AllowedToDelegateTo")
        try:
            sam.modify(msg)
        except Exception as err:
            raise CommandError(err)

class SchemaTests_msDS_isRODC(samba.tests.TestCase):

    def setUp(self):
        super(SchemaTests_msDS_isRODC, self).setUp()
        self.ldb =  SamDB(host, credentials=creds,
            session_info=system_session(lp), lp=lp, options=ldb_options)
        res = self.ldb.search(base="", expression="", scope=SCOPE_BASE, attrs=["defaultNamingContext"])
        self.assertEquals(len(res), 1)
        self.base_dn = res[0]["defaultNamingContext"][0]

    def test_objectClass_ntdsdsa(self):
        res = self.ldb.search(self.base_dn, expression="objectClass=nTDSDSA",
                              attrs=["msDS-isRODC"], controls=["search_options:1:2"])
        for ldb_msg in res:
            self.assertTrue("msDS-isRODC" in ldb_msg)

    def test_objectClass_server(self):
        res = self.ldb.search(self.base_dn, expression="objectClass=server",
                              attrs=["msDS-isRODC"], controls=["search_options:1:2"])
        for ldb_msg in res:
            ntds_search_dn = "CN=NTDS Settings,%s" % ldb_msg['dn']
            try:
                res_check = self.ldb.search(ntds_search_dn, attrs=["objectCategory"])
            except LdbError, (num, _):
                self.assertEquals(num, ERR_NO_SUCH_OBJECT)
                print("Server entry %s doesn't have a NTDS settings object" % res[0]['dn'])
            else:
                self.assertTrue("objectCategory" in res_check[0])
                self.assertTrue("msDS-isRODC" in ldb_msg)

    def run(self, username=None, filter=None, credopts=None, sambaopts=None,
            versionopts=None, H=None, newpassword=None,
            must_change_at_next_login=None):
        if filter is None and username is None:
            raise CommandError("Either the username or '--filter' must be specified!")

        password = newpassword
        if password is None:
            password = getpass("New Password: ")

        if filter is None:
            filter = "(&(objectClass=user)(sAMAccountName=%s))" % (username)

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)

        samdb = SamDB(url=H, session_info=system_session(),
                      credentials=creds, lp=lp)

        try:
            samdb.setpassword(filter, password,
                              force_change_at_next_login=must_change_at_next_login,
                              username=username)
        except Exception, e:
            raise CommandError('Failed to set password for user "%s"' % username, e)

    def run(self, groupname, credopts=None, sambaopts=None,
            versionopts=None, H=None, groupou=None, group_scope=None,
            group_type=None, description=None, mail_address=None, notes=None, gid_number=None, nis_domain=None):

        if (group_type or "Security") == "Security":
            gtype = security_group.get(group_scope, GTYPE_SECURITY_GLOBAL_GROUP)
        else:
            gtype = distribution_group.get(group_scope, GTYPE_DISTRIBUTION_GLOBAL_GROUP)

        if (gid_number is None and nis_domain is not None) or (gid_number is not None and nis_domain is None):
            raise CommandError('Both --gid-number and --nis-domain have to be set for a RFC2307-enabled group. Operation cancelled.')

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp, fallback_machine=True)

        try:
            samdb = SamDB(url=H, session_info=system_session(),
                          credentials=creds, lp=lp)
            samdb.newgroup(groupname, groupou=groupou, grouptype = gtype,
                          description=description, mailaddress=mail_address, notes=notes,
                          gidnumber=gid_number, nisdomain=nis_domain)
        except Exception as e:
            # FIXME: catch more specific exception
            raise CommandError('Failed to create group "%s"' % groupname, e)
        self.outf.write("Added group %s\n" % groupname)

class DirsyncBaseTests(samba.tests.TestCase):

    def setUp(self):
        super(DirsyncBaseTests, self).setUp()
        self.ldb_admin = SamDB(ldapshost, credentials=creds, session_info=system_session(lp), lp=lp)
        self.base_dn = self.ldb_admin.domain_dn()
        self.domain_sid = security.dom_sid(self.ldb_admin.get_domain_sid())
        self.user_pass = samba.generate_random_password(12, 16)
        self.configuration_dn = self.ldb_admin.get_config_basedn().get_linearized()
        self.sd_utils = sd_utils.SDUtils(self.ldb_admin)
        #used for anonymous login
        print("baseDN: %s" % self.base_dn)

    def get_user_dn(self, name):
        return "CN=%s,CN=Users,%s" % (name, self.base_dn)

    def get_ldb_connection(self, target_username, target_password):
        creds_tmp = Credentials()
        creds_tmp.set_username(target_username)
        creds_tmp.set_password(target_password)
        creds_tmp.set_domain(creds.get_domain())
        creds_tmp.set_realm(creds.get_realm())
        creds_tmp.set_workstation(creds.get_workstation())
        creds_tmp.set_gensec_features(creds_tmp.get_gensec_features()
                                      | gensec.FEATURE_SEAL)
        creds_tmp.set_kerberos_state(DONT_USE_KERBEROS) # kinit is too expensive to use in a tight loop
        ldb_target = SamDB(url=ldaphost, credentials=creds_tmp, lp=lp)
        return ldb_target

    def run(self, H=None, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp, fallback_machine=True)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        domain_dn = samdb.domain_dn()
        forest_dn = samba.dn_from_dns_name(samdb.forest_dns_name())
        infrastructure_dn = "CN=Infrastructure," + domain_dn
        naming_dn = "CN=Partitions,%s" % samdb.get_config_basedn()
        schema_dn = samdb.get_schema_basedn()
        rid_dn = "CN=RID Manager$,CN=System," + domain_dn
        domaindns_dn = "CN=Infrastructure,DC=DomainDnsZones," + domain_dn
        forestdns_dn = "CN=Infrastructure,DC=ForestDnsZones," + forest_dn

        infrastructureMaster = get_fsmo_roleowner(samdb, infrastructure_dn)
        pdcEmulator = get_fsmo_roleowner(samdb, domain_dn)
        namingMaster = get_fsmo_roleowner(samdb, naming_dn)
        schemaMaster = get_fsmo_roleowner(samdb, schema_dn)
        ridMaster = get_fsmo_roleowner(samdb, rid_dn)
        domaindnszonesMaster = get_fsmo_roleowner(samdb, domaindns_dn)
        forestdnszonesMaster = get_fsmo_roleowner(samdb, forestdns_dn)

        self.message("SchemaMasterRole owner: " + schemaMaster)
        self.message("InfrastructureMasterRole owner: " + infrastructureMaster)
        self.message("RidAllocationMasterRole owner: " + ridMaster)
        self.message("PdcEmulationMasterRole owner: " + pdcEmulator)
        self.message("DomainNamingMasterRole owner: " + namingMaster)
        self.message("DomainDnsZonesMasterRole owner: " + domaindnszonesMaster)
        self.message("ForestDnsZonesMasterRole owner: " + forestdnszonesMaster)

    def test_1000_binds(self):

        for x in range(1, 1000):
            samdb = SamDB(host, credentials=creds,
                         session_info=system_session(self.lp), lp=self.lp)
            samdb.search(base=samdb.domain_dn(),
                         scope=SCOPE_BASE, attrs=["*"])

    def run(self, attribute, H=None, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        schema_dn = samdb.schema_dn()

        may_filt = '(&(objectClass=classSchema)' \
         '(|(mayContain={0})(systemMayContain={0})))'.format(attribute)
        must_filt = '(&(objectClass=classSchema)' \
         '(|(mustContain={0})(systemMustContain={0})))'.format(attribute)

        may_res = samdb.search(base=schema_dn, scope=ldb.SCOPE_SUBTREE,
                           expression=may_filt, attrs=['cn'])
        must_res = samdb.search(base=schema_dn, scope=ldb.SCOPE_SUBTREE,
                           expression=must_filt, attrs=['cn'])

        self.outf.write('--- MAY contain ---\n')
        for msg in may_res:
            self.outf.write('%s\n' % msg['cn'][0])

        self.outf.write('--- MUST contain ---\n')
        for msg in must_res:
            self.outf.write('%s\n' % msg['cn'][0])

    def run(self, computername, new_ou_dn, credopts=None, sambaopts=None,
            versionopts=None, H=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp, fallback_machine=True)
        samdb = SamDB(url=H, session_info=system_session(),
                      credentials=creds, lp=lp)
        domain_dn = ldb.Dn(samdb, samdb.domain_dn())

        samaccountname = computername
        if not computername.endswith('$'):
            samaccountname = "%s$" % computername

        filter = ("(&(sAMAccountName=%s)(sAMAccountType=%u))" %
                  (ldb.binary_encode(samaccountname),
                   dsdb.ATYPE_WORKSTATION_TRUST))
        try:
            res = samdb.search(base=domain_dn,
                               expression=filter,
                               scope=ldb.SCOPE_SUBTREE)
            computer_dn = res[0].dn
        except IndexError:
            raise CommandError('Unable to find computer "%s"' % (computername))

        full_new_ou_dn = ldb.Dn(samdb, new_ou_dn)
        if not full_new_ou_dn.is_child_of(domain_dn):
            full_new_ou_dn.add_base(domain_dn)
        new_computer_dn = ldb.Dn(samdb, str(computer_dn))
        new_computer_dn.remove_base_components(len(computer_dn)-1)
        new_computer_dn.add_base(full_new_ou_dn)
        try:
            samdb.rename(computer_dn, new_computer_dn)
        except Exception as e:
            raise CommandError('Failed to move computer "%s"' % computername, e)
        self.outf.write('Moved computer "%s" to "%s"\n' %
                        (computername, new_ou_dn))

    def run(self, H=None, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        res = samdb.search(pso_container(samdb), scope=ldb.SCOPE_SUBTREE,
                           attrs=['name', 'msDS-PasswordSettingsPrecedence'],
                           expression="(objectClass=msDS-PasswordSettings)")

        # an unprivileged search against Windows returns nothing here. On Samba
        # we get the PSO names, but not their attributes
        if len(res) == 0 or 'msDS-PasswordSettingsPrecedence' not in res[0]:
            self.outf.write("No PSOs are present, or you don't have permission to view them.\n")
            return

        # sort the PSOs so they're displayed in order of precedence
        pso_list = sorted(res, cmp=pso_cmp)

        self.outf.write("Precedence | PSO name\n")
        self.outf.write("--------------------------------------------------\n")

        for pso in pso_list:
            precedence = pso['msDS-PasswordSettingsPrecedence']
            self.outf.write("%-10s | %s\n" %(precedence, pso['name']))

    def run(self, username=None, filter=None, credopts=None, sambaopts=None,
            versionopts=None, H=None, newpassword=None,
            must_change_at_next_login=False, random_password=False,
            smartcard_required=False, clear_smartcard_required=False):
        if filter is None and username is None:
            raise CommandError("Either the username or '--filter' must be specified!")

        password = newpassword

        if smartcard_required:
            if password is not None and password is not '':
                raise CommandError('It is not allowed to specifiy '
                                   '--newpassword '
                                   'together with --smartcard-required.')
            if must_change_at_next_login:
                raise CommandError('It is not allowed to specifiy '
                                   '--must-change-at-next-login '
                                   'together with --smartcard-required.')
            if clear_smartcard_required:
                raise CommandError('It is not allowed to specifiy '
                                   '--clear-smartcard-required '
                                   'together with --smartcard-required.')

        if random_password and not smartcard_required:
            password = generate_random_password(128, 255)

        while True:
            if smartcard_required:
                break
            if password is not None and password is not '':
                break
            password = getpass("New Password: ")
            passwordverify = getpass("Retype Password: ")
            if not password == passwordverify:
                password = None
                self.outf.write("Sorry, passwords do not match.\n")

        if filter is None:
            filter = "(&(objectClass=user)(sAMAccountName=%s))" % (ldb.binary_encode(username))

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)

        samdb = SamDB(url=H, session_info=system_session(),
                      credentials=creds, lp=lp)

        if smartcard_required:
            command = ""
            try:
                command = "Failed to set UF_SMARTCARD_REQUIRED for user '%s'" % (username or filter)
                flags = dsdb.UF_SMARTCARD_REQUIRED
                samdb.toggle_userAccountFlags(filter, flags, on=True)
                command = "Failed to enable account for user '%s'" % (username or filter)
                samdb.enable_account(filter)
            except Exception, msg:
                # FIXME: catch more specific exception
                raise CommandError("%s: %s" % (command, msg))
            self.outf.write("Added UF_SMARTCARD_REQUIRED OK\n")

    def run(self, accountname, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)
        paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
        sam = SamDB(paths.samdb, session_info=system_session(),
                    credentials=creds, lp=lp)
        # TODO once I understand how, use the domain info to naildown
        # to the correct domain
        (cleanedaccount, realm, domain) = _get_user_realm_domain(accountname)

        res = sam.search(expression="sAMAccountName=%s" %
                    ldb.binary_encode(cleanedaccount),
                    scope=ldb.SCOPE_SUBTREE,
                    attrs=["userAccountControl", "msDS-AllowedToDelegateTo"])
        if len(res) == 0:
            raise CommandError("Unable to find account name '%s'" % accountname)
        assert(len(res) == 1)

        uac = int(res[0].get("userAccountControl")[0])
        allowed = res[0].get("msDS-AllowedToDelegateTo")

        self.outf.write("Account-DN: %s\n" %  str(res[0].dn))
        self.outf.write("UF_TRUSTED_FOR_DELEGATION: %s\n"
            % bool(uac & dsdb.UF_TRUSTED_FOR_DELEGATION))
        self.outf.write("UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION: %s\n" %
              bool(uac & dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION))

        if allowed is not None:
            for a in allowed:
                self.outf.write("msDS-AllowedToDelegateTo: %s\n" % a)

    def run(self, subcommand, H=None, min_pwd_age=None, max_pwd_age=None,
            quiet=False, complexity=None, store_plaintext=None, history_length=None,
            min_pwd_length=None, credopts=None, sambaopts=None,
            versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        domain_dn = samdb.domain_dn()
        res = samdb.search(domain_dn, scope=ldb.SCOPE_BASE,
          attrs=["pwdProperties", "pwdHistoryLength", "minPwdLength",
                 "minPwdAge", "maxPwdAge"])
        assert(len(res) == 1)
        try:
            pwd_props = int(res[0]["pwdProperties"][0])
            pwd_hist_len = int(res[0]["pwdHistoryLength"][0])
            cur_min_pwd_len = int(res[0]["minPwdLength"][0])
            # ticks -> days
            cur_min_pwd_age = int(abs(int(res[0]["minPwdAge"][0])) / (1e7 * 60 * 60 * 24))
            if int(res[0]["maxPwdAge"][0]) == -0x8000000000000000:
                cur_max_pwd_age = 0
            else:
                cur_max_pwd_age = int(abs(int(res[0]["maxPwdAge"][0])) / (1e7 * 60 * 60 * 24))
        except Exception, e:
            raise CommandError("Could not retrieve password properties!", e)

    def run(self, H=None, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        domain_dn = samdb.domain_dn()
        object_dn = "%s,%s" % (self.objectdn, domain_dn)

        # Show all the settings we know how to set in the forest object!
        res = samdb.search(base=object_dn, scope=ldb.SCOPE_BASE,
                           attrs=self.attributes)

        # Now we just display these attributes. The value is that
        # we make them a bit prettier and human accessible.
        # There should only be one response!
        res_object = res[0]

        self.outf.write("Settings for %s\n" % object_dn)
        for attr in self.attributes:
            try:
                self.outf.write("%s: %s\n" % (attr, res_object[attr][0]))
            except KeyError:
                self.outf.write("%s: <NO VALUE>\n" % attr)

    def run(self, H=None, credopts=None, sambaopts=None, versionopts=None):
        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp, fallback_machine=True)

        samdb = SamDB(url=H, session_info=system_session(),
            credentials=creds, lp=lp)

        domain_dn = samdb.domain_dn()
        forest_dn = samba.dn_from_dns_name(samdb.forest_dns_name())
        infrastructure_dn = "CN=Infrastructure," + domain_dn
        naming_dn = "CN=Partitions,%s" % samdb.get_config_basedn()
        schema_dn = samdb.get_schema_basedn()
        rid_dn = "CN=RID Manager$,CN=System," + domain_dn
        domaindns_dn = "CN=Infrastructure,DC=DomainDnsZones," + domain_dn
        forestdns_dn = "CN=Infrastructure,DC=ForestDnsZones," + forest_dn

        masters = [(schema_dn, "schema", "SchemaMasterRole"),
                   (infrastructure_dn, "infrastructure", "InfrastructureMasterRole"),
                   (rid_dn, "rid", "RidAllocationMasterRole"),
                   (domain_dn, "pdc", "PdcEmulationMasterRole"),
                   (naming_dn, "naming", "DomainNamingMasterRole"),
                   (domaindns_dn, "domaindns", "DomainDnsZonesMasterRole"),
                   (forestdns_dn, "forestdns", "ForestDnsZonesMasterRole"),
        ]

        for master in masters:
            (dn, short_name, long_name) = master
            try:
                master = get_fsmo_roleowner(samdb, dn, short_name)
                if master is not None:
                    self.message("%s owner: %s" % (long_name, str(master)))
                else:
                    self.message("%s has no current owner" % (long_name))
            except CommandError, e:
                self.message("%s: * %s" % (long_name, e.message))

    def test_join_time_ridalloc(self):
        """Perform a join against the RID manager and assert we have a RID Set"""

        fsmo_dn = ldb.Dn(self.ldb_dc1, "CN=RID Manager$,CN=System," + self.ldb_dc1.domain_dn())
        (fsmo_owner, fsmo_not_owner) = self._determine_fSMORoleOwner(fsmo_dn)

        targetdir = self._test_join(fsmo_owner['dns_name'], "RIDALLOCTEST5")
        try:
            # Connect to the database
            ldb_url = "tdb://%s" % os.path.join(targetdir, "private/sam.ldb")
            smbconf = os.path.join(targetdir, "etc/smb.conf")

            lp = self.get_loadparm()
            new_ldb = SamDB(ldb_url, credentials=self.get_credentials(),
                            session_info=system_session(lp), lp=lp)

            # 1. Get server name
            res = new_ldb.search(base=ldb.Dn(new_ldb, new_ldb.get_serverName()),
                                 scope=ldb.SCOPE_BASE, attrs=["serverReference"])
            # 2. Get server reference
            server_ref_dn = ldb.Dn(new_ldb, res[0]['serverReference'][0])

            # 3. Assert we get the RID Set
            res = new_ldb.search(base=server_ref_dn,
                                 scope=ldb.SCOPE_BASE, attrs=['rIDSetReferences'])

            self.assertTrue("rIDSetReferences" in res[0])
        finally:
            self._test_force_demote(fsmo_owner['dns_name'], "RIDALLOCTEST5")
            shutil.rmtree(targetdir, ignore_errors=True)

    def run(self, username, password=None, credopts=None, sambaopts=None,
            versionopts=None, H=None, must_change_at_next_login=False, random_password=False,
            use_username_as_cn=False, userou=None, surname=None, given_name=None, initials=None,
            profile_path=None, script_path=None, home_drive=None, home_directory=None,
            job_title=None, department=None, company=None, description=None,
            mail_address=None, internet_address=None, telephone_number=None, physical_delivery_office=None):

        if random_password:
            password = generate_random_password(128, 255)

        while 1:
            if password is not None and password is not '':
                break
            password = getpass("New Password: ")

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)

        try:
            samdb = SamDB(url=H, session_info=system_session(),
                          credentials=creds, lp=lp)
            samdb.newuser(username, password,
                          force_password_change_at_next_login_req=must_change_at_next_login,
                          useusernameascn=use_username_as_cn, userou=userou, surname=surname, givenname=given_name, initials=initials,
                          profilepath=profile_path, homedrive=home_drive, scriptpath=script_path, homedirectory=home_directory,
                          jobtitle=job_title, department=department, company=company, description=description,
                          mailaddress=mail_address, internetaddress=internet_address,
                          telephonenumber=telephone_number, physicaldeliveryoffice=physical_delivery_office)
        except Exception, e:
            raise CommandError("Failed to add user '%s': " % username, e)

    def run(self, accountname, principal, credopts=None, sambaopts=None, versionopts=None):

        lp = sambaopts.get_loadparm()
        creds = credopts.get_credentials(lp)
        paths = provision.provision_paths_from_lp(lp, lp.get("realm"))
        sam = SamDB(paths.samdb, session_info=system_session(),
                    credentials=creds, lp=lp)
        # TODO once I understand how, use the domain info to naildown
        # to the correct domain
        (cleanedaccount, realm, domain) = _get_user_realm_domain(accountname)

        res = sam.search(expression="sAMAccountName=%s" % cleanedaccount,
                            scope=ldb.SCOPE_SUBTREE,
                            attrs=["msDS-AllowedToDelegateTo"])
        if len(res) != 1:
            raise CommandError("Account %s found %d times" % (accountname, len(res)))

        msg = ldb.Message()
        msg.dn = res[0].dn
        msg["msDS-AllowedToDelegateTo"] = ldb.MessageElement([principal],
                                              ldb.FLAG_MOD_ADD,
                                              "msDS-AllowedToDelegateTo")
        try:
            sam.modify(msg)
        except Exception, err:
            raise CommandError(err)

class BaseDeleteTests(samba.tests.TestCase):

    def GUID_string(self, guid):
        return self.ldb.schema_format_value("objectGUID", guid)

    def setUp(self):
        super(BaseDeleteTests, self).setUp()
        self.ldb = SamDB(host, credentials=creds, session_info=system_session(lp), lp=lp)

        self.base_dn = self.ldb.domain_dn()
        self.configuration_dn = self.ldb.get_config_basedn().get_linearized()

    def search_guid(self, guid):
        print "SEARCH by GUID {0!s}".format(self.GUID_string(guid))

        res = self.ldb.search(base="<GUID={0!s}>".format(self.GUID_string(guid)),
                         scope=SCOPE_BASE, controls=["show_deleted:1"])
        self.assertEquals(len(res), 1)
        return res[0]

    def search_dn(self,dn):
        print "SEARCH by DN {0!s}".format(dn)

        res = self.ldb.search(expression="(objectClass=*)",
                         base=dn,
                         scope=SCOPE_BASE,
                         controls=["show_deleted:1"])
        self.assertEquals(len(res), 1)
        return res[0]