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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/>.
import six
from ipalib.plugable import Registry
from ipalib.plugins.baseldap import (LDAPObject, LDAPCreate, LDAPRetrieve,
LDAPDelete, LDAPUpdate, LDAPSearch,
LDAPAddMember, LDAPRemoveMember,
entry_from_entry, wait_for_value)
from ipalib import Str, api, _, ngettext, errors
from ipalib.plugins.netgroup import NETGROUP_PATTERN, NETGROUP_PATTERN_ERRMSG
from ipapython.dn import DN
if six.PY3:
unicode = str
__doc__ = _("""
Groups of hosts.
Manage groups of hosts. This is useful for applying access control to a
number of hosts by using Host-based Access Control.
EXAMPLES:
Add a new host group:
ipa hostgroup-add --desc="Baltimore hosts" baltimore
Add another new host group:
ipa hostgroup-add --desc="Maryland hosts" maryland
Add members to the hostgroup (using Bash brace expansion):
ipa hostgroup-add-member --hosts={box1,box2,box3} baltimore
Add a hostgroup as a member of another hostgroup:
ipa hostgroup-add-member --hostgroups=baltimore maryland
Remove a host from the hostgroup:
ipa hostgroup-remove-member --hosts=box2 baltimore
Display a host group:
ipa hostgroup-show baltimore
Delete a hostgroup:
ipa hostgroup-del baltimore
""")
def get_complete_hostgroup_member_list(hostgroup):
result = api.Command['hostgroup_show'](hostgroup)['result']
direct = list(result.get('member_host', []))
indirect = list(result.get('memberindirect_host', []))
return direct + indirect
register = Registry()
@register()
class hostgroup(LDAPObject):
"""
Hostgroup object.
"""
container_dn = api.env.container_hostgroup
object_name = _('host group')
object_name_plural = _('host groups')
object_class = ['ipaobject', 'ipahostgroup']
permission_filter_objectclasses = ['ipahostgroup']
search_attributes = ['cn', 'description', 'member', 'memberof']
default_attributes = ['cn', 'description', 'member', 'memberof',
'memberindirect', 'memberofindirect',
]
uuid_attribute = 'ipauniqueid'
attribute_members = {
'member': ['host', 'hostgroup'],
'memberof': ['hostgroup', 'netgroup', 'hbacrule', 'sudorule'],
'memberindirect': ['host', 'hostgroup'],
'memberofindirect': ['hostgroup', 'hbacrule', 'sudorule'],
}
managed_permissions = {
'System: Read Hostgroups': {
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'businesscategory', 'cn', 'description', 'ipauniqueid', 'o',
'objectclass', 'ou', 'owner', 'seealso',
},
},
'System: Read Hostgroup Membership': {
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'member', 'memberof', 'memberuser', 'memberhost',
},
},
'System: Add Hostgroups': {
'ipapermright': {'add'},
'replaces': [
'(target = "ldap:///cn=*,cn=hostgroups,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Add Hostgroups";allow (add) groupdn = "ldap:///cn=Add Hostgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Host Group Administrators'},
},
'System: Modify Hostgroup Membership': {
'ipapermright': {'write'},
'ipapermdefaultattr': {'member'},
'replaces': [
'(targetattr = "member")(target = "ldap:///cn=*,cn=hostgroups,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Modify Hostgroup membership";allow (write) groupdn = "ldap:///cn=Modify Hostgroup membership,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Host Group Administrators'},
},
'System: Modify Hostgroups': {
'ipapermright': {'write'},
'ipapermdefaultattr': {'cn', 'description'},
'replaces': [
'(targetattr = "cn || description")(target = "ldap:///cn=*,cn=hostgroups,cn=accounts,$SUFFIX")(version 3.0; acl "permission:Modify Hostgroups";allow (write) groupdn = "ldap:///cn=Modify Hostgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Host Group Administrators'},
},
'System: Remove Hostgroups': {
'ipapermright': {'delete'},
'replaces': [
'(target = "ldap:///cn=*,cn=hostgroups,cn=accounts,$SUFFIX")(version 3.0;acl "permission:Remove Hostgroups";allow (delete) groupdn = "ldap:///cn=Remove Hostgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Host Group Administrators'},
},
}
label = _('Host Groups')
label_singular = _('Host Group')
takes_params = (
Str('cn',
pattern=NETGROUP_PATTERN,
pattern_errmsg=NETGROUP_PATTERN_ERRMSG,
cli_name='hostgroup_name',
label=_('Host-group'),
doc=_('Name of host-group'),
primary_key=True,
normalizer=lambda value: value.lower(),
),
Str('description?',
cli_name='desc',
label=_('Description'),
doc=_('A description of this host-group'),
),
)
def suppress_netgroup_memberof(self, ldap, dn, entry_attrs):
"""
We don't want to show managed netgroups so remove them from the
memberOf list.
"""
hgdn = DN(dn)
for member in list(entry_attrs.get('memberof', [])):
ngdn = DN(member)
if ngdn['cn'] != hgdn['cn']:
continue
filter = ldap.make_filter({'objectclass': 'mepmanagedentry'})
try:
ldap.get_entries(ngdn, ldap.SCOPE_BASE, filter, [''])
except errors.NotFound:
pass
else:
entry_attrs['memberof'].remove(member)
@register()
class hostgroup_add(LDAPCreate):
__doc__ = _('Add a new hostgroup.')
msg_summary = _('Added hostgroup "%(value)s"')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
assert isinstance(dn, DN)
try:
# check duplicity with hostgroups first to provide proper error
api.Object['hostgroup'].get_dn_if_exists(keys[-1])
self.obj.handle_duplicate_entry(*keys)
except errors.NotFound:
pass
try:
# when enabled, a managed netgroup is created for every hostgroup
# make sure that the netgroup can be created
api.Object['netgroup'].get_dn_if_exists(keys[-1])
raise errors.DuplicateEntry(message=unicode(_(
u'netgroup with name "%s" already exists. '
u'Hostgroups and netgroups share a common namespace'
) % keys[-1]))
except errors.NotFound:
pass
return dn
def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
assert isinstance(dn, DN)
# Always wait for the associated netgroup to be created so we can
# be sure to ignore it in memberOf
newentry = wait_for_value(ldap, dn, 'objectclass', 'mepOriginEntry')
entry_from_entry(entry_attrs, newentry)
self.obj.suppress_netgroup_memberof(ldap, dn, entry_attrs)
return dn
@register()
class hostgroup_del(LDAPDelete):
__doc__ = _('Delete a hostgroup.')
msg_summary = _('Deleted hostgroup "%(value)s"')
@register()
class hostgroup_mod(LDAPUpdate):
__doc__ = _('Modify a hostgroup.')
msg_summary = _('Modified hostgroup "%(value)s"')
def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
assert isinstance(dn, DN)
self.obj.suppress_netgroup_memberof(ldap, dn, entry_attrs)
return dn
@register()
class hostgroup_find(LDAPSearch):
__doc__ = _('Search for hostgroups.')
member_attributes = ['member', 'memberof']
msg_summary = ngettext(
'%(count)d hostgroup matched', '%(count)d hostgroups matched', 0
)
def post_callback(self, ldap, entries, truncated, *args, **options):
if options.get('pkey_only', False):
return truncated
for entry in entries:
self.obj.suppress_netgroup_memberof(ldap, entry.dn, entry)
return truncated
@register()
class hostgroup_show(LDAPRetrieve):
__doc__ = _('Display information about a hostgroup.')
def post_callback(self, ldap, dn, entry_attrs, *keys, **options):
assert isinstance(dn, DN)
self.obj.suppress_netgroup_memberof(ldap, dn, entry_attrs)
return dn
@register()
class hostgroup_add_member(LDAPAddMember):
__doc__ = _('Add members to a hostgroup.')
def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options):
assert isinstance(dn, DN)
self.obj.suppress_netgroup_memberof(ldap, dn, entry_attrs)
return (completed, dn)
@register()
class hostgroup_remove_member(LDAPRemoveMember):
__doc__ = _('Remove members from a hostgroup.')
def post_callback(self, ldap, completed, failed, dn, entry_attrs, *keys, **options):
assert isinstance(dn, DN)
self.obj.suppress_netgroup_memberof(ldap, dn, entry_attrs)
return (completed, dn)
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