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# Authors:
# Rob Crittenden <rcritten@redhat.com>
# Pavel Zuna <pzuna@redhat.com>
#
# Copyright (C) 2009 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/>.
"""
Netgroups
A netgroup is a group used for permission checking. It can contain both
user and host values.
EXAMPLES:
Add a new netgroup:
ipa netgroup-add --desc="NFS admins" admins
Add members to the netgroup:
ipa netgroup-add-member --users=tuser1,tuser2 admins
Remove a member from the netgroup:
ipa netgroup-remove-member --users=tuser2 admins
Display infromation about a netgroup:
ipa netgroup-show admins
Delete a netgroup:
ipa netgroup-del admins
"""
from ipalib import api, errors
from ipalib import Str, StrEnum
from ipalib.plugins.baseldap import *
from ipalib import _, ngettext
from ipalib.plugins.hbac import is_all
output_params = (
Str('memberuser_user?',
label='Member User',
),
Str('memberuser_group?',
label='Member Group',
),
Str('memberhost_host?',
label=_('Member Host'),
),
Str('memberhost_hostgroup?',
label='Member Hostgroup',
),
)
class netgroup(LDAPObject):
"""
Netgroup object.
"""
container_dn = api.env.container_netgroup
object_name = 'netgroup'
object_name_plural = 'netgroups'
object_class = ['ipaobject', 'ipaassociation', 'ipanisnetgroup']
default_attributes = [
'cn', 'description', 'memberof', 'externalhost', 'nisdomainname',
'memberuser', 'memberhost', 'member', 'memberindirect',
'usercategory', 'hostcategory',
]
uuid_attribute = 'ipauniqueid'
rdn_attribute = 'ipauniqueid'
attribute_members = {
'member': ['netgroup'],
'memberof': ['netgroup'],
'memberindirect': ['netgroup'],
'memberuser': ['user', 'group'],
'memberhost': ['host', 'hostgroup'],
}
label = _('Net Groups')
takes_params = (
Str('cn',
cli_name='name',
label=_('Netgroup name'),
primary_key=True,
normalizer=lambda value: value.lower(),
),
Str('description',
cli_name='desc',
label=_('Description'),
doc=_('Netgroup description'),
),
Str('nisdomainname?',
cli_name='nisdomain',
label=_('NIS domain name'),
),
Str('ipauniqueid?',
cli_name='uuid',
label='IPA unique ID',
doc=_('IPA unique ID'),
flags=['no_create', 'no_update'],
),
StrEnum('usercategory?',
cli_name='usercat',
label=_('User category'),
doc=_('User category the rule applies to'),
values=(u'all', ),
),
StrEnum('hostcategory?',
cli_name='hostcat',
label=_('Host category'),
doc=_('Host category the rule applies to'),
values=(u'all', ),
),
)
api.register(netgroup)
class netgroup_add(LDAPCreate):
"""
Add a new netgroup.
"""
has_output_params = LDAPCreate.has_output_params + output_params
msg_summary = _('Added netgroup "%(value)s"')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
entry_attrs.setdefault('nisdomainname', self.api.env.domain)
return dn
api.register(netgroup_add)
class netgroup_del(LDAPDelete):
"""
Delete a netgroup.
"""
msg_summary = _('Deleted netgroup "%(value)s"')
api.register(netgroup_del)
class netgroup_mod(LDAPUpdate):
"""
Modify a netgroup.
"""
has_output_params = LDAPUpdate.has_output_params + output_params
msg_summary = _('Modified netgroup "%(value)s"')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
(dn, entry_attrs) = ldap.get_entry(dn, attrs_list)
if is_all(options, 'usercategory') and 'memberuser' in entry_attrs:
raise errors.MutuallyExclusiveError(reason="user category cannot be set to 'all' while there are allowed users")
if is_all(options, 'hostcategory') and 'memberhost' in entry_attrs:
raise errors.MutuallyExclusiveError(reason="host category cannot be set to 'all' while there are allowed hosts")
return dn
api.register(netgroup_mod)
class netgroup_find(LDAPSearch):
"""
Search for a netgroup.
"""
member_attributes = ['member', 'memberuser', 'memberhost']
has_output_params = LDAPSearch.has_output_params + output_params
msg_summary = ngettext(
'%(count)d netgroup matched', '%(count)d netgroups matched'
)
api.register(netgroup_find)
class netgroup_show(LDAPRetrieve):
"""
Display information about a netgroup.
"""
has_output_params = LDAPRetrieve.has_output_params + output_params
api.register(netgroup_show)
class netgroup_add_member(LDAPAddMember):
"""
Add members to a netgroup.
"""
member_attributes = ['memberuser', 'memberhost', 'member']
has_output_params = LDAPAddMember.has_output_params + output_params
def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options):
completed_external = 0
# Sift through the host failures. We assume that these are all
# hosts that aren't stored in IPA, aka external hosts.
if 'memberhost' in failed and 'host' in failed['memberhost']:
(dn, entry_attrs_) = ldap.get_entry(dn, ['externalhost'])
members = entry_attrs.get('memberhost', [])
external_hosts = entry_attrs_.get('externalhost', [])
failed_hosts = []
for host in failed['memberhost']['host']:
hostname = host[0].lower()
host_dn = self.api.Object['host'].get_dn(hostname)
if hostname not in external_hosts and host_dn not in members:
external_hosts.append(hostname)
completed_external += 1
else:
failed_hosts.append(hostname)
if completed_external:
try:
ldap.update_entry(dn, {'externalhost': external_hosts})
except errors.EmptyModlist:
pass
failed['memberhost']['host'] = failed_hosts
entry_attrs['externalhost'] = external_hosts
return (completed + completed_external, dn)
api.register(netgroup_add_member)
class netgroup_remove_member(LDAPRemoveMember):
"""
Remove members from a netgroup.
"""
member_attributes = ['memberuser', 'memberhost', 'member']
has_output_params = LDAPRemoveMember.has_output_params + output_params
def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options):
# Run through the host failures and gracefully remove any defined as
# as an externalhost.
if 'memberhost' in failed and 'host' in failed['memberhost']:
(dn, entry_attrs) = ldap.get_entry(dn, ['externalhost'])
external_hosts = entry_attrs.get('externalhost', [])
failed_hosts = []
completed_external = 0
for host in failed['memberhost']['host']:
hostname = host[0].lower()
if hostname in external_hosts:
external_hosts.remove(hostname)
completed_external += 1
else:
failed_hosts.append(hostname)
if completed_external:
try:
ldap.update_entry(dn, {'externalhost': external_hosts})
except errors.EmptyModlist:
pass
failed['memberhost']['host'] = failed_hosts
entry_attrs['externalhost'] = external_hosts
return (completed + completed_external, dn)
api.register(netgroup_remove_member)
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