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author	nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2005-02-02 14:53:36 +0000
committer	nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2005-02-02 14:53:36 +0000
commit	b5a7849e0c41e5451ee39d1e06fab9e8d57ddd21 (patch)
tree	c4d13586e064b457b684aa063ebdc7f3fd47feee /test/soap
parent	a1c2e139f5e40dd4c5c675e4e7a53fd5e91b3678 (diff)

* ext/stringio/stringio.c (strio_truncate): should MEMZERO an extended

part. [ruby-dev:25618] git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@7866 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Diffstat (limited to 'test/soap')

0 files changed, 0 insertions, 0 deletions

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# Authors:
#   Rob Crittenden <rcritten@redhat.com>
#   Pavel Zuna <pzuna@redhat.com>
#
# Copyright (C) 2008  Red Hat
# see file 'COPYING' for use and warranty information
#
# 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/>.
"""
Hosts/Machines

A host represents a machine. It can be used in a number of contexts:
- service entries are associated with a host
- a host stores the host/ service principal
- a host can be used in Host-based Access Control (HBAC) rules
- every enrolled client generates a host entry

ENROLLMENT:

There are three enrollment scenarios when enrolling a new client:

1. You are enrolling as a full administrator. The host entry may exist
   or not. A full administrator is a member of the hostadmin role
   or the admins group.
2. You are enrolling as a limited administrator. The host must already
   exist. A limited administrator is a member a role with the
   Host Enrollment privilege.
3. The host has been created with a one-time password.

A host can only be enrolled once. If a client has enrolled and needs to
be re-enrolled, the host entry must be removed and re-created. Note that
re-creating the host entry will result in all services for the host being
removed, and all SSL certificates associated with those services being
revoked.

A host can optionally store information such as where it is located,
the OS that it runs, etc.

EXAMPLES:

 Add a new host:
   ipa host-add --location="3rd floor lab" --locality=Dallas test.example.com

 Delete a host:
   ipa host-del test.example.com

 Add a new host with a one-time password:
   ipa host-add --os='Fedora 12' --password=Secret123 test.example.com

 Add a new host with a random one-time password:
   ipa host-add --os='Fedora 12' --random test.example.com

 Modify information about a host:
   ipa host-mod --os='Fedora 12' test.example.com

 Disable the host Kerberos key, SSL certificate and all of its services:
   ipa host-disable test.example.com

 Add a host that can manage this host's keytab and certificate:
   ipa host-add-managedby --hosts=test2 test
"""

import platform
import os
import sys
from nss.error import NSPRError

from ipalib import api, errors, util
from ipalib import Str, Flag, Bytes
from ipalib.plugins.baseldap import *
from ipalib.plugins.service import split_principal
from ipalib.plugins.service import validate_certificate
from ipalib.plugins.service import set_certificate_attrs
from ipalib.plugins.dns import dns_container_exists, _record_types
from ipalib.plugins.dns import add_forward_record
from ipalib import _, ngettext
from ipalib import x509
from ipapython.ipautil import ipa_generate_password, CheckedIPAddress
from ipalib.request import context
import base64
import nss.nss as nss
import netaddr


def validate_host(ugettext, fqdn):
    """
    Require at least one dot in the hostname (to support localhost.localdomain)
    """
    if fqdn.find('.') == -1:
        return _('Fully-qualified hostname required')
    return None

def is_forward_record(zone, str_address):
    addr = netaddr.IPAddress(str_address)
    if addr.version == 4:
        result = api.Command['dnsrecord_find'](zone, arecord=str_address)
    elif addr.version == 6:
        result = api.Command['dnsrecord_find'](zone, aaaarecord=str_address)
    else:
        raise ValueError('Invalid address family')

    return result['count'] > 0

def get_reverse_zone(ipaddr, prefixlen=None):
    ip = netaddr.IPAddress(ipaddr)
    revdns = unicode(ip.reverse_dns)

    if prefixlen is None:
        revzone = u''

        result = api.Command['dnszone_find']()['result']
        for zone in result:
            zonename = zone['idnsname'][0]
            if revdns.endswith(zonename) and len(zonename) > len(revzone):
                revzone = zonename
    else:
        if ip.version == 4:
            pos = 4 - prefixlen / 8
        elif ip.version == 6:
            pos = 32 - prefixlen / 4
        items = ip.reverse_dns.split('.')
        revzone = u'.'.join(items[pos:])

        try:
            api.Command['dnszone_show'](revzone)
        except errors.NotFound:
            revzone = u''

    if len(revzone) == 0:
        raise errors.NotFound(
            reason=_('DNS reverse zone for IP address %(addr)s not found') % dict(addr=ipaddr)
        )

    revname = revdns[:-len(revzone)-1]

    return revzone, revname

def remove_fwd_ptr(ipaddr, host, domain, recordtype):
    api.log.debug('deleting ipaddr %s' % ipaddr)
    try:
        revzone, revname = get_reverse_zone(ipaddr)
        delkw = { 'ptrrecord' : "%s.%s." % (host, domain) }
        api.Command['dnsrecord_del'](revzone, revname, **delkw)
    except errors.NotFound:
        pass

    try:
        delkw = { recordtype : ipaddr }
        api.Command['dnsrecord_del'](domain, host, **delkw)
    except errors.NotFound:
        pass

host_output_params = (
    Flag('has_keytab',
        label=_('Keytab'),
    ),
    Str('managedby_host',
        label='Managed by',
    ),
    Str('managing_host',
        label='Managing',
    ),
    Str('subject',
        label=_('Subject'),
    ),
    Str('serial_number',
        label=_('Serial Number'),
    ),
    Str('issuer',
        label=_('Issuer'),
    ),
    Str('valid_not_before',
        label=_('Not Before'),
    ),
    Str('valid_not_after',
        label=_('Not After'),
    ),
    Str('md5_fingerprint',
        label=_('Fingerprint (MD5)'),
    ),
    Str('sha1_fingerprint',
        label=_('Fingerprint (SHA1)'),
    ),
    Str('revocation_reason?',
        label=_('Revocation reason'),
    ),
)

def validate_ipaddr(ugettext, ipaddr):
    """
    Verify that we have either an IPv4 or IPv6 address.
    """
    try:
        ip = CheckedIPAddress(ipaddr, match_local=False)
    except:
        return _('invalid IP address')
    return None


class host(LDAPObject):
    """
    Host object.
    """
    container_dn = api.env.container_host
    object_name = 'host'
    object_name_plural = 'hosts'
    object_class = ['ipaobject', 'nshost', 'ipahost', 'pkiuser', 'ipaservice']
    # object_class_config = 'ipahostobjectclasses'
    search_attributes = [
        'fqdn', 'description', 'l', 'nshostlocation', 'krbprincipalname',
        'nshardwareplatform', 'nsosversion', 'managedby'
    ]
    default_attributes = [
        'fqdn', 'description', 'l', 'nshostlocation', 'krbprincipalname',
        'nshardwareplatform', 'nsosversion', 'usercertificate', 'memberof',
        'krblastpwdchange', 'managedby', 'memberindirect', 'memberofindirect',
    ]
    uuid_attribute = 'ipauniqueid'
    attribute_members = {
        'enrolledby': ['user'],
        'memberof': ['hostgroup', 'netgroup', 'role', 'hbacrule', 'sudorule'],
        'managedby': ['host'],
        'managing': ['host'],
        'memberofindirect': ['hostgroup', 'netgroup', 'role', 'hbacrule',
        'sudorule'],
    }
    bindable = True
    relationships = {
        'memberof': ('Member Of', 'in_', 'not_in_'),
        'enrolledby': ('Enrolled by', 'enroll_by_', 'not_enroll_by_'),
        'managedby': ('Managed by', 'man_by_', 'not_man_by_'),
        'managing': ('Managing', 'man_', 'not_man_'),
    }

    label = _('Hosts')

    takes_params = (
        Str('fqdn', validate_host,
            cli_name='hostname',
            label=_('Host name'),
            primary_key=True,
            normalizer=lambda value: value.lower(),
        ),
        Str('description?',
            cli_name='desc',
            label=_('Description'),
            doc=_('A description of this host'),
        ),
        Str('l?',
            cli_name='locality',
            label=_('Locality'),
            doc=_('Host locality (e.g. "Baltimore, MD")'),
        ),
        Str('nshostlocation?',
            cli_name='location',
            label=_('Location'),
            doc=_('Host location (e.g. "Lab 2")'),
        ),
        Str('nshardwareplatform?',
            cli_name='platform',
            label=_('Platform'),
            doc=_('Host hardware platform (e.g. "Lenovo T61")'),
        ),
        Str('nsosversion?',
            cli_name='os',
            label=_('Operating system'),
            doc=_('Host operating system and version (e.g. "Fedora 9")'),
        ),
        Str('userpassword?',
            cli_name='password',
            label=_('User password'),
            doc=_('Password used in bulk enrollment'),
        ),
        Flag('random?',
            doc=_('Generate a random password to be used in bulk enrollment'),
            flags=['no_search'],
            default=False,
        ),
        Str('randompassword?',
            label=_('Random password'),
            flags=['no_create', 'no_update', 'no_search'],
        ),
        Bytes('usercertificate?', validate_certificate,
            cli_name='certificate',
            label=_('Certificate'),
            doc=_('Base-64 encoded server certificate'),
        ),
        Str('krbprincipalname?',
            label=_('Principal name'),
            flags=['no_create', 'no_update', 'no_search'],
        ),
    )

    def get_dn(self, *keys, **options):
        hostname = keys[-1]
        if hostname.endswith('.'):
            hostname = hostname[:-1]
        dn = super(host, self).get_dn(hostname, **options)
        try:
            self.backend.get_entry(dn, [''])
        except errors.NotFound:
            try:
                (dn, entry_attrs) = self.backend.find_entry_by_attr(
                    'serverhostname', hostname, self.object_class, [''],
                    self.container_dn
                )
            except errors.NotFound:
                pass
        return dn

    def get_managed_hosts(self, dn):
        host_filter = 'managedBy=%s' % dn
        host_attrs = ['fqdn']
        ldap = self.api.Backend.ldap2
        managed_hosts = []

        try:
            (hosts, truncated) = ldap.find_entries(base_dn=self.container_dn,
                                    filter=host_filter, attrs_list=host_attrs)

            for host in hosts:
                managed_hosts.append(host[0])
        except errors.NotFound:
            return []

        return managed_hosts

api.register(host)


class host_add(LDAPCreate):
    """
    Add a new host.
    """

    has_output_params = LDAPCreate.has_output_params + host_output_params
    msg_summary = _('Added host "%(value)s"')
    member_attributes = ['managedby']
    takes_options = (
        Flag('force',
            label=_('Force'),
            doc=_('force host name even if not in DNS'),
        ),
        Flag('no_reverse',
            doc=_('skip reverse DNS detection'),
        ),
        Str('ip_address?', validate_ipaddr,
            doc=_('Add the host to DNS with this IP address'),
            label=_('IP Address'),
        ),
    )

    def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
        if 'ip_address' in options and dns_container_exists(ldap):
            parts = keys[-1].split('.')
            domain = unicode('.'.join(parts[1:]))
            result = api.Command['dnszone_find']()['result']
            match = False
            for zone in result:
                if domain == zone['idnsname'][0]:
                    match = True
                    break
            if not match:
                raise errors.NotFound(
                    reason=_('DNS zone %(zone)s not found') % dict(zone=domain)
                )
            ip = CheckedIPAddress(options['ip_address'], match_local=False)
            if not options.get('no_reverse', False):
                try:
                    prefixlen = None
                    if not ip.defaultnet:
                        prefixlen = ip.prefixlen
                    # we prefer lookup of the IP through the reverse zone
                    revzone, revname = get_reverse_zone(ip, prefixlen)
                    reverse = api.Command['dnsrecord_find'](revzone, idnsname=revname)
                    if reverse['count'] > 0:
                        raise errors.DuplicateEntry(message=u'This IP address is already assigned.')
                except errors.NotFound:
                    pass
            else:
                if is_forward_record(domain, unicode(ip)):
                    raise errors.DuplicateEntry(message=u'This IP address is already assigned.')
        if not options.get('force', False) and not 'ip_address' in options:
            util.validate_host_dns(self.log, keys[-1])
        if 'locality' in entry_attrs:
            entry_attrs['l'] = entry_attrs['locality']
            del entry_attrs['locality']
        entry_attrs['cn'] = keys[-1]
        entry_attrs['serverhostname'] = keys[-1].split('.', 1)[0]
        if 'userpassword' not in entry_attrs and not options.get('random', False):
            entry_attrs['krbprincipalname'] = 'host/%s@%s' % (
                keys[-1], self.api.env.realm
            )
            if 'krbprincipalaux' not in entry_attrs['objectclass']:
                entry_attrs['objectclass'].append('krbprincipalaux')
            if 'krbprincipal' not in entry_attrs['objectclass']:
                entry_attrs['objectclass'].append('krbprincipal')
        else:
            if 'krbprincipalaux' in entry_attrs['objectclass']:
                entry_attrs['objectclass'].remove('krbprincipalaux')
            if 'krbprincipal' in entry_attrs['objectclass']:
                entry_attrs['objectclass'].remove('krbprincipal')
        if 'random' in options:
            if options.get('random'):
                entry_attrs['userpassword'] = ipa_generate_password()
                # save the password so it can be displayed in post_callback
                setattr(context, 'randompassword', entry_attrs['userpassword'])
            del entry_attrs['random']
        cert = options.get('usercertificate')
        if cert:
            cert = x509.normalize_certificate(cert)
            x509.verify_cert_subject(ldap, keys[-1], cert)
            entry_attrs['usercertificate'] = cert
        entry_attrs['managedby'] = dn
        return dn

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        exc = None
        try:
            if 'ip_address' in options and dns_container_exists(ldap):
                parts = keys[-1].split('.')
                domain = unicode('.'.join(parts[1:]))

                ip = CheckedIPAddress(options['ip_address'], match_local=False)
                add_forward_record(domain, parts[0], unicode(ip))

                if not options.get('no_reverse', False):
                    try:
                        prefixlen = None
                        if not ip.defaultnet:
                            prefixlen = ip.prefixlen
                        revzone, revname = get_reverse_zone(ip, prefixlen)
                        addkw = { 'ptrrecord' : keys[-1]+'.' }
                        api.Command['dnsrecord_add'](revzone, revname, **addkw)
                    except errors.EmptyModlist:
                        # the entry already exists and matches
                        pass

                del options['ip_address']
        except Exception, e:
            exc = e
        if options.get('random', False):
            try:
                entry_attrs['randompassword'] = unicode(getattr(context, 'randompassword'))
            except AttributeError:
                # On the off-chance some other extension deletes this from the
                # context, don't crash.
                pass
        if exc:
            raise errors.NonFatalError(
                reason=_('The host was added but the DNS update failed with: %(exc)s') % dict(exc=exc)
            )
        set_certificate_attrs(entry_attrs)

        if options.get('all', False):
                entry_attrs['managing'] = self.obj.get_managed_hosts(dn)

        return dn

api.register(host_add)


class host_del(LDAPDelete):
    """
    Delete a host.
    """

    msg_summary = _('Deleted host "%(value)s"')
    member_attributes = ['managedby']

    takes_options = (
        Flag('updatedns?',
            doc=_('Remove entries from DNS'),
            default=False,
        ),
    )

    def pre_callback(self, ldap, dn, *keys, **options):
        # If we aren't given a fqdn, find it
        if validate_host(None, keys[-1]) is not None:
            hostentry = api.Command['host_show'](keys[-1])['result']
            fqdn = hostentry['fqdn'][0]
        else:
            fqdn = keys[-1]
        # Remove all service records for this host
        truncated = True
        while truncated:
            try:
                ret = api.Command['service_find'](fqdn)
                truncated = ret['truncated']
                services = ret['result']
            except errors.NotFound:
                break
            else:
                for entry_attrs in services:
                    principal = entry_attrs['krbprincipalname'][0]
                    (service, hostname, realm) = split_principal(principal)
                    if hostname.lower() == fqdn:
                        api.Command['service_del'](principal)
        updatedns = options.get('updatedns', False)
        if updatedns:
            try:
                updatedns = dns_container_exists(ldap)
            except errors.NotFound:
                updatedns = False

        if updatedns:
            # Remove DNS entries
            parts = fqdn.split('.')
            domain = unicode('.'.join(parts[1:]))
            result = api.Command['dnszone_find']()['result']
            match = False
            for zone in result:
                if domain == zone['idnsname'][0]:
                    match = True
                    break
            if not match:
                raise errors.NotFound(
                    reason=_('DNS zone %(zone)s not found') % dict(zone=domain)
                )
            # Get all forward resources for this host
            records = api.Command['dnsrecord_find'](domain, idnsname=parts[0])['result']
            for record in records:
                if 'arecord' in record:
                    remove_fwd_ptr(record['arecord'][0], parts[0],
                                   domain, 'arecord')
                if 'aaaarecord' in record:
                    remove_fwd_ptr(record['aaaarecord'][0], parts[0],
                                   domain, 'aaaarecord')
                else:
                    # Try to delete all other record types too
                    _attribute_types = [str('%srecord' % t.lower()) for t in _record_types]
                    for attr in _attribute_types:
                        if attr not in ['arecord', 'aaaarecord'] and attr in record:
                            for i in xrange(len(record[attr])):
                                if (record[attr][i].endswith(parts[0]) or
                                    record[attr][i].endswith(fqdn+'.')):
                                    delkw = { unicode(attr) : record[attr][i] }
                                    api.Command['dnsrecord_del'](domain,
                                            record['idnsname'][0],
                                            **delkw)
                            break

        try:
            (dn, entry_attrs) = ldap.get_entry(dn, ['usercertificate'])
        except errors.NotFound:
            self.obj.handle_not_found(*keys)

        if 'usercertificate' in entry_attrs:
            cert = x509.normalize_certificate(entry_attrs.get('usercertificate')[0])
            try:
                serial = unicode(x509.get_serial_number(cert, x509.DER))
                try:
                    result = api.Command['cert_show'](unicode(serial))['result'
]
                    if 'revocation_reason' not in result:
                        try:
                            api.Command['cert_revoke'](unicode(serial), revocation_reason=4)
                        except errors.NotImplementedError:
                            # some CA's might not implement revoke
                            pass
                except errors.NotImplementedError:
                    # some CA's might not implement revoke
                    pass
            except NSPRError, nsprerr:
                if nsprerr.errno == -8183:
                    # If we can't decode the cert them proceed with
                    # removing the host.
                    self.log.info("Problem decoding certificate %s" % nsprerr.args[1])
                else:
                    raise nsprerr

        return dn

api.register(host_del)


class host_mod(LDAPUpdate):
    """
    Modify information about a host.
    """

    has_output_params = LDAPUpdate.has_output_params + host_output_params
    msg_summary = _('Modified host "%(value)s"')
    member_attributes = ['managedby']

    takes_options = LDAPUpdate.takes_options + (
        Str('krbprincipalname?',
            cli_name='principalname',
            label=_('Principal name'),
            doc=_('Kerberos principal name for this host'),
            attribute=True,
        ),
    )

    def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
        # Once a principal name is set it cannot be changed
        if 'cn' in entry_attrs:
            raise errors.ACIError(info='cn is immutable')
        if 'locality' in entry_attrs:
            entry_attrs['l'] = entry_attrs['locality']
            del entry_attrs['locality']
        if 'krbprincipalname' in entry_attrs:
            (dn, entry_attrs_old) = ldap.get_entry(
                dn, ['objectclass', 'krbprincipalname']
            )
            if 'krbprincipalname' in entry_attrs_old:
                msg = 'Principal name already set, it is unchangeable.'
                raise errors.ACIError(info=msg)
            obj_classes = entry_attrs_old['objectclass']
            if 'krbprincipalaux' not in obj_classes:
                obj_classes.append('krbprincipalaux')
                entry_attrs['objectclass'] = obj_classes
        cert = x509.normalize_certificate(entry_attrs.get('usercertificate'))
        if cert:
            x509.verify_cert_subject(ldap, keys[-1], cert)
            (dn, entry_attrs_old) = ldap.get_entry(dn, ['usercertificate'])
            if 'usercertificate' in entry_attrs_old:
                oldcert = x509.normalize_certificate(entry_attrs_old.get('usercertificate')[0])
                try:
                    serial = unicode(x509.get_serial_number(oldcert, x509.DER))
                    try:
                        result = api.Command['cert_show'](unicode(serial))['result']
                        if 'revocation_reason' not in result:
                            try:
                                api.Command['cert_revoke'](unicode(serial), revocation_reason=4)
                            except errors.NotImplementedError:
                                # some CA's might not implement revoke
                                pass
                    except errors.NotImplementedError:
                        # some CA's might not implement revoke
                        pass
                except NSPRError, nsprerr:
                    if nsprerr.errno == -8183:
                        # If we can't decode the cert them proceed with
                        # modifying the host.
                        self.log.info("Problem decoding certificate %s" % nsprerr.args[1])
                    else:
                        raise nsprerr

            entry_attrs['usercertificate'] = cert
        if 'random' in options:
            if options.get('random'):
                entry_attrs['userpassword'] = ipa_generate_password()
                setattr(context, 'randompassword', entry_attrs['userpassword'])
            del entry_attrs['random']

        return dn

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        if options.get('random', False):
            entry_attrs['randompassword'] = unicode(getattr(context, 'randompassword'))
        set_certificate_attrs(entry_attrs)

        if options.get('all', False):
            entry_attrs['managing'] = self.obj.get_managed_hosts(dn)

        return dn

api.register(host_mod)


class host_find(LDAPSearch):
    """
    Search for hosts.
    """

    has_output_params = LDAPSearch.has_output_params + host_output_params
    msg_summary = ngettext(
        '%(count)d host matched', '%(count)d hosts matched', 0
    )
    member_attributes = ['memberof', 'enrolledby', 'managedby']

    def pre_callback(self, ldap, filter, attrs_list, base_dn, scope, *args, **options):
        if 'locality' in attrs_list:
            attrs_list.remove('locality')
            attrs_list.append('l')
        return (filter.replace('locality', 'l'), base_dn, scope)

    def post_callback(self, ldap, entries, truncated, *args, **options):
        for entry in entries:
            entry_attrs = entry[1]
            set_certificate_attrs(entry_attrs)

            if options.get('all', False):
                entry_attrs['managing'] = self.obj.get_managed_hosts(entry[0])

api.register(host_find)


class host_show(LDAPRetrieve):
    """
    Display information about a host.
    """
    has_output_params = LDAPRetrieve.has_output_params + host_output_params
    takes_options = LDAPRetrieve.takes_options + (
        Str('out?',
            doc=_('file to store certificate in'),
        ),
    )

    member_attributes = ['managedby']

    def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
        if 'krblastpwdchange' in entry_attrs:
            entry_attrs['has_keytab'] = True
            if not options.get('all', False):
                del entry_attrs['krblastpwdchange']
        else:
            entry_attrs['has_keytab'] = False

        set_certificate_attrs(entry_attrs)

        if options.get('all', False):
            entry_attrs['managing'] = self.obj.get_managed_hosts(dn)

        return dn

    def forward(self, *keys, **options):
        if 'out' in options:
            util.check_writable_file(options['out'])
            result = super(host_show, self).forward(*keys, **options)
            if 'usercertificate' in result['result']:
                x509.write_certificate(result['result']['usercertificate'][0], options['out'])
                result['summary'] = _('Certificate stored in file \'%(file)s\'') % dict(file=options['out'])
                return result
            else:
                raise errors.NoCertificateError(entry=keys[-1])
        else:
            return super(host_show, self).forward(*keys, **options)

api.register(host_show)


class host_disable(LDAPQuery):
    """
    Disable the Kerberos key, SSL certificate and all services of a host.
    """
    has_output = output.standard_value
    msg_summary = _('Disabled host "%(value)s"')

    def execute(self, *keys, **options):
        ldap = self.obj.backend

        # If we aren't given a fqdn, find it
        if validate_host(None, keys[-1]) is not None:
            hostentry = api.Command['host_show'](keys[-1])['result']
            fqdn = hostentry['fqdn'][0]
        else:
            fqdn = keys[-1]

        # See if we actually do anthing here, and if not raise an exception
        done_work = False

        dn = self.obj.get_dn(*keys, **options)
        try:
            (dn, entry_attrs) = ldap.get_entry(dn, ['krblastpwdchange', 'usercertificate'])
        except errors.NotFound:
            self.obj.handle_not_found(*keys)

        truncated = True
        while truncated:
            try:
                ret = api.Command['service_find'](fqdn)
                truncated = ret['truncated']
                services = ret['result']
            except errors.NotFound:
                break
            else:
                for entry_attrs in services:
                    principal = entry_attrs['krbprincipalname'][0]
                    (service, hostname, realm) = split_principal(principal)
                    if hostname.lower() == fqdn:
                        try:
                            api.Command['service_disable'](principal)
                            done_work = True
                        except errors.AlreadyInactive:
                            pass
        if 'usercertificate' in entry_attrs:
            cert = x509.normalize_certificate(entry_attrs.get('usercertificate')[0])
            try:
                serial = unicode(x509.get_serial_number(cert, x509.DER))
                try:
                    result = api.Command['cert_show'](unicode(serial))['result'
]
                    if 'revocation_reason' not in result:
                        try:
                            api.Command['cert_revoke'](unicode(serial), revocation_reason=4)
                        except errors.NotImplementedError:
                            # some CA's might not implement revoke
                            pass
                except errors.NotImplementedError:
                    # some CA's might not implement revoke
                    pass
            except NSPRError, nsprerr:
                if nsprerr.errno == -8183:
                    # If we can't decode the cert them proceed with
                    # disabling the host.
                    self.log.info("Problem decoding certificate %s" % nsprerr.args[1])
                else:
                    raise nsprerr

            # Remove the usercertificate altogether
            ldap.update_entry(dn, {'usercertificate': None})
            done_work = True

        if 'krblastpwdchange' in entry_attrs:
            ldap.remove_principal_key(dn)
            done_work = True

        if not done_work:
            raise errors.AlreadyInactive()

        return dict(
            result=True,
            value=keys[0],
        )

api.register(host_disable)

class host_add_managedby(LDAPAddMember):
    """
    Add hosts that can manage this host.
    """
    member_attributes = ['managedby']
    has_output_params = LDAPAddMember.has_output_params + host_output_params
    allow_same = True

api.register(host_add_managedby)


class host_remove_managedby(LDAPRemoveMember):
    """
    Remove hosts that can manage this host.
    """
    member_attributes = ['managedby']
    has_output_params = LDAPRemoveMember.has_output_params + host_output_params

api.register(host_remove_managedby)


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