/usr/lib/python2.7/dist-packages/ipaserver/plugins/netgroup.py is in python-ipaserver 4.7.0~pre1+git20180411-2ubuntu2.
This file is owned by root:root, with mode 0o644.
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# 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 import api, errors
from ipalib import Str, StrEnum, Flag
from ipalib.plugable import Registry
from .baseldap import (
external_host_param,
add_external_pre_callback,
add_external_post_callback,
remove_external_post_callback,
LDAPObject,
LDAPCreate,
LDAPDelete,
LDAPUpdate,
LDAPSearch,
LDAPRetrieve,
LDAPAddMember,
LDAPRemoveMember)
from ipalib import _, ngettext
from .hbacrule import is_all
from ipapython.dn import DN
if six.PY3:
unicode = str
__doc__ = _("""
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 --users=tuser2 admins
Remove a member from the netgroup:
ipa netgroup-remove-member --users=tuser2 admins
Display information about a netgroup:
ipa netgroup-show admins
Delete a netgroup:
ipa netgroup-del admins
""")
register = Registry()
NETGROUP_PATTERN='^[a-zA-Z0-9_.][a-zA-Z0-9_.-]*$'
NETGROUP_PATTERN_ERRMSG='may only include letters, numbers, _, -, and .'
# according to most common use cases the netgroup pattern should fit
# also the nisdomain pattern
NISDOMAIN_PATTERN=NETGROUP_PATTERN
NISDOMAIN_PATTERN_ERRMSG=NETGROUP_PATTERN_ERRMSG
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',
),
)
@register()
class netgroup(LDAPObject):
"""
Netgroup object.
"""
container_dn = api.env.container_netgroup
object_name = _('netgroup')
object_name_plural = _('netgroups')
object_class = ['ipaobject', 'ipaassociation', 'ipanisnetgroup']
permission_filter_objectclasses = ['ipanisnetgroup']
search_attributes = [
'cn', 'description', 'memberof', 'externalhost', 'nisdomainname',
'memberuser', 'memberhost', 'member', 'usercategory', 'hostcategory',
]
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'],
}
relationships = {
'member': ('Member', '', 'no_'),
'memberof': ('Member Of', 'in_', 'not_in_'),
'memberindirect': (
'Indirect Member', None, 'no_indirect_'
),
'memberuser': ('Member', '', 'no_'),
'memberhost': ('Member', '', 'no_'),
}
managed_permissions = {
'System: Read Netgroups': {
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'cn', 'description', 'hostcategory', 'ipaenabledflag',
'ipauniqueid', 'nisdomainname', 'usercategory', 'objectclass',
},
},
'System: Read Netgroup Membership': {
'replaces_global_anonymous_aci': True,
'ipapermbindruletype': 'all',
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'externalhost', 'member', 'memberof', 'memberuser',
'memberhost', 'objectclass',
},
},
'System: Add Netgroups': {
'ipapermright': {'add'},
'replaces': [
'(target = "ldap:///ipauniqueid=*,cn=ng,cn=alt,$SUFFIX")(version 3.0;acl "permission:Add netgroups";allow (add) groupdn = "ldap:///cn=Add netgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Netgroups Administrators'},
},
'System: Modify Netgroup Membership': {
'ipapermright': {'write'},
'ipapermdefaultattr': {
'externalhost', 'member', 'memberhost', 'memberuser'
},
'replaces': [
'(targetattr = "memberhost || externalhost || memberuser || member")(target = "ldap:///ipauniqueid=*,cn=ng,cn=alt,$SUFFIX")(version 3.0;acl "permission:Modify netgroup membership";allow (write) groupdn = "ldap:///cn=Modify netgroup membership,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Netgroups Administrators'},
},
'System: Modify Netgroups': {
'ipapermright': {'write'},
'ipapermdefaultattr': {'description'},
'replaces': [
'(targetattr = "description")(target = "ldap:///ipauniqueid=*,cn=ng,cn=alt,$SUFFIX")(version 3.0; acl "permission:Modify netgroups";allow (write) groupdn = "ldap:///cn=Modify netgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Netgroups Administrators'},
},
'System: Remove Netgroups': {
'ipapermright': {'delete'},
'replaces': [
'(target = "ldap:///ipauniqueid=*,cn=ng,cn=alt,$SUFFIX")(version 3.0;acl "permission:Remove netgroups";allow (delete) groupdn = "ldap:///cn=Remove netgroups,cn=permissions,cn=pbac,$SUFFIX";)',
],
'default_privileges': {'Netgroups Administrators'},
},
'System: Read Netgroup Compat Tree': {
'non_object': True,
'ipapermbindruletype': 'anonymous',
'ipapermlocation': api.env.basedn,
'ipapermtarget': DN('cn=ng', 'cn=compat', api.env.basedn),
'ipapermright': {'read', 'search', 'compare'},
'ipapermdefaultattr': {
'objectclass', 'cn', 'membernisnetgroup', 'nisnetgrouptriple',
},
},
}
label = _('Netgroups')
label_singular = _('Netgroup')
takes_params = (
Str('cn',
pattern=NETGROUP_PATTERN,
pattern_errmsg=NETGROUP_PATTERN_ERRMSG,
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?',
pattern=NISDOMAIN_PATTERN,
pattern_errmsg=NISDOMAIN_PATTERN_ERRMSG,
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', ),
),
external_host_param,
)
def get_primary_key_from_dn(self, dn):
assert isinstance(dn, DN)
if not dn.rdns:
return u''
first_ava = dn.rdns[0][0]
if first_ava[0] == self.primary_key.name:
return unicode(first_ava[1])
try:
entry_attrs = self.backend.get_entry(
dn, [self.primary_key.name]
)
try:
return entry_attrs[self.primary_key.name][0]
except (KeyError, IndexError):
return u''
except errors.NotFound:
return unicode(dn)
@register()
class netgroup_add(LDAPCreate):
__doc__ = _('Add a new netgroup.')
has_output_params = LDAPCreate.has_output_params + output_params
msg_summary = _('Added netgroup "%(value)s"')
msg_collision = _(u'hostgroup with name "%s" already exists. ' \
u'Hostgroups and netgroups share a common namespace')
def pre_callback(self, ldap, dn, entry_attrs, attrs_list, *keys, **options):
assert isinstance(dn, DN)
entry_attrs.setdefault('nisdomainname', self.api.env.domain)
try:
test_dn = self.obj.get_dn(keys[-1])
netgroup = ldap.get_entry(test_dn, ['objectclass'])
if 'mepManagedEntry' in netgroup.get('objectclass', []):
raise errors.DuplicateEntry(message=unicode(self.msg_collision % keys[-1]))
else:
self.obj.handle_duplicate_entry(*keys)
except errors.NotFound:
pass
try:
# when enabled, a managed netgroup is created for every hostgroup
# make sure that we don't create a collision if the plugin is
# (temporarily) disabled
api.Object['hostgroup'].get_dn_if_exists(keys[-1])
raise errors.DuplicateEntry(message=unicode(self.msg_collision % keys[-1]))
except errors.NotFound:
pass
return dn
@register()
class netgroup_del(LDAPDelete):
__doc__ = _('Delete a netgroup.')
msg_summary = _('Deleted netgroup "%(value)s"')
@register()
class netgroup_mod(LDAPUpdate):
__doc__ = _('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):
assert isinstance(dn, DN)
try:
entry_attrs = ldap.get_entry(dn, attrs_list)
dn = entry_attrs.dn
except errors.NotFound:
raise self.obj.handle_not_found(*keys)
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
@register()
class netgroup_find(LDAPSearch):
__doc__ = _('Search for a netgroup.')
member_attributes = ['member', 'memberuser', 'memberhost', 'memberof']
has_output_params = LDAPSearch.has_output_params + output_params
msg_summary = ngettext(
'%(count)d netgroup matched', '%(count)d netgroups matched', 0
)
takes_options = LDAPSearch.takes_options + (
Flag('private',
exclude='webui',
flags=['no_option', 'no_output'],
),
Flag('managed',
cli_name='managed',
doc=_('search for managed groups'),
default_from=lambda private: private,
),
)
def pre_callback(self, ldap, filter, attrs_list, base_dn, scope, *args, **options):
assert isinstance(base_dn, DN)
# Do not display private mepManagedEntry netgroups by default
# If looking for managed groups, we need to omit the negation search filter
search_kw = {}
search_kw['objectclass'] = ['mepManagedEntry']
if not options['managed']:
local_filter = ldap.make_filter(search_kw, rules=ldap.MATCH_NONE)
else:
local_filter = ldap.make_filter(search_kw, rules=ldap.MATCH_ALL)
filter = ldap.combine_filters((local_filter, filter), rules=ldap.MATCH_ALL)
return (filter, base_dn, scope)
@register()
class netgroup_show(LDAPRetrieve):
__doc__ = _('Display information about a netgroup.')
has_output_params = LDAPRetrieve.has_output_params + output_params
@register()
class netgroup_add_member(LDAPAddMember):
__doc__ = _('Add members to a netgroup.')
member_attributes = ['memberuser', 'memberhost', 'member']
has_output_params = LDAPAddMember.has_output_params + output_params
def pre_callback(self, ldap, dn, found, not_found, *keys, **options):
assert isinstance(dn, DN)
return add_external_pre_callback('host', ldap, dn, keys, options)
def post_callback(self, ldap, completed, failed, dn, entry_attrs,
*keys, **options):
assert isinstance(dn, DN)
return add_external_post_callback(ldap, dn, entry_attrs,
failed=failed,
completed=completed,
memberattr='memberhost',
membertype='host',
externalattr='externalhost')
@register()
class netgroup_remove_member(LDAPRemoveMember):
__doc__ = _('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):
assert isinstance(dn, DN)
return remove_external_post_callback(ldap, dn, entry_attrs,
failed=failed,
completed=completed,
memberattr='memberhost',
membertype='host',
externalattr='externalhost')
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