summaryrefslogtreecommitdiffstats
path: root/ipalib/plugins/host.py
blob: 8859b58733e0266c16a1d0d7494805190cf93456 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
# 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; version 2 only
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Hosts/Machines (Identity)
"""

import platform
import os
import sys

from ipalib import api, errors, util
from ipalib import Str, Flag
from ipalib.plugins.baseldap import *
from ipalib.plugins.service import split_principal


def validate_host(ugettext, fqdn):
    """
    Require at least one dot in the hostname (to support localhost.localdomain)
    """
    if fqdn.index('.') == -1:
        return 'Fully-qualified hostname required'
    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']
    # object_class_config = 'ipahostobjectclasses'
    default_attributes = [
        'fqdn', 'description', 'localityname', 'nshostlocation',
        'nshardwareplatform', 'nsosversion'
    ]
    uuid_attribute = 'ipauniqueid'
    attribute_names = {
        'cn': 'name',
        'fqdn': 'hostname',
        'localityname': 'locality',
        'nshostlocation': 'location',
        'nshardwareplatform': 'platform',
        'nsosversion': 'operating system',
        'serverhostname': 'server hostname',
        'enrolledby user': 'enrolled by',
        'krbprincipalname': 'kerberos principal',
    }
    attribute_members = {
        'enrolledby': ['user'],
    }

    takes_params = (
        Str('fqdn', validate_host,
            cli_name='hostname',
            doc='Hostname',
            primary_key=True,
            normalizer=lambda value: value.lower(),
        ),
        Str('description?',
            cli_name='desc',
            doc='Description of the host',
        ),
        Str('localityname?',
            cli_name='locality',
            doc='Locality of the host (Baltimore, MD)',
        ),
        Str('nshostlocation?',
            cli_name='location',
            doc='Location of the host (e.g. Lab 2)',
        ),
        Str('nshardwareplatform?',
            cli_name='platform',
            doc='Hardware platform of the host (e.g. Lenovo T61)',
        ),
        Str('nsosversion?',
            cli_name='os',
            doc='Operating System and version of the host (e.g. Fedora 9)',
        ),
        Str('userpassword?',
            cli_name='password',
            doc='Password used in bulk enrollment',
        ),
    )

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

api.register(host)


class host_add(LDAPCreate):
    """
    Create new host.
    """
    def pre_callback(self, ldap, dn, entry_attrs, *keys, **options):
        entry_attrs['cn'] = keys[-1]
        entry_attrs['serverhostname'] = keys[-1].split('.', 1)[0]
        # FIXME: do DNS lookup to ensure host exists
        if 'userpassword' not in entry_attrs:
            entry_attrs['krbprincipalname'] = 'host/%s@%s' % (
                keys[-1], self.api.env.realm
            )
            if 'krbprincipalaux' not in entry_attrs['objectclass']:
                entry_attrs['objectclass'].append('krbprincipalaux')
                entry_attrs['objectclass'].append('krbprincipal')
        elif 'krbprincipalaux' in entry_attrs['objectclass']:
            entry_attrs['objectclass'].remove('krbprincipalaux')
        return dn

api.register(host_add)


class host_del(LDAPDelete):
    """
    Delete host.
    """
    def pre_callback(self, ldap, dn, *keys, **options):
        # Remove all service records for this host
        truncated = True
        while truncated:
            try:
                (services, truncated) = api.Command['service_find'](keys[-1])
            except errors.NotFound:
                break
            else:
                for (dn_, entry_attrs) in services:
                    principal = entry_attrs['krbprincipalname'][0]
                    (service, hostname, realm) = split_principal(principal)
                    if hostname.lower() == keys[-1]:
                        api.Command['service_del'](principal)
        return dn

api.register(host_del)


class host_mod(LDAPUpdate):
    """
    Modify host.
    """
    takes_options = LDAPUpdate.takes_options + (
        Str('krbprincipalname?',
            cli_name='principalname',
            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 '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
        return dn

api.register(host_mod)


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

api.register(host_find)


class host_show(LDAPRetrieve):
    """
    Display host.
    """

api.register(host_show)