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sources/ldap: add property_mappings_group to make group mapping more customisable

This commit is contained in:
Jens Langhammer 2021-02-06 15:24:11 +01:00
parent 83bf639926
commit 32cf960053
11 changed files with 150 additions and 69 deletions
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1
authentik/sources/ldap/api.py
View File

@ -29,6 +29,7 @@ class LDAPSourceSerializer(ModelSerializer, MetaNameSerializer):
"sync_groups",
"sync_parent_group",
"property_mappings",
"property_mappings_group",
]
extra_kwargs = {"bind_password": {"write_only": True}}

4
authentik/sources/ldap/forms.py
View File

@ -14,6 +14,9 @@ class LDAPSourceForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields["property_mappings"].queryset = LDAPPropertyMapping.objects.all()
self.fields[
"property_mappings_group"
].queryset = LDAPPropertyMapping.objects.all()
class Meta:
@ -33,6 +36,7 @@ class LDAPSourceForm(forms.ModelForm):
"sync_users_password",
"sync_groups",
"property_mappings",
"property_mappings_group",
"additional_user_dn",
"additional_group_dn",
"user_object_filter",

9
authentik/sources/ldap/managed.py
View File

@ -11,6 +11,7 @@ class LDAPProviderManager(ObjectManager):
EnsureExists(
LDAPPropertyMapping,
"object_field",
"expression",
name="authentik default LDAP Mapping: name",
object_field="name",
expression="return ldap.get('name')",
@ -47,4 +48,12 @@ class LDAPProviderManager(ObjectManager):
object_field="username",
expression="return ldap.get('uid')",
),
EnsureExists(
LDAPPropertyMapping,
"object_field",
"expression",
name="authentik default OpenLDAP Mapping: cn",
object_field="name",
expression="return ldap.get('cn')",
),
]

24
authentik/sources/ldap/migrations/0011_ldapsource_property_mappings_group.py Normal file
View File

@ -0,0 +1,24 @@
# Generated by Django 3.1.6 on 2021-02-06 14:01
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
("authentik_core", "0017_managed"),
("authentik_sources_ldap", "0010_auto_20210205_1027"),
]
operations = [
migrations.AddField(
model_name="ldapsource",
name="property_mappings_group",
field=models.ManyToManyField(
blank=True,
default=None,
help_text="Property mappings used for group creation/updating.",
to="authentik_core.PropertyMapping",
),
),
]

7
authentik/sources/ldap/models.py
View File

@ -52,6 +52,13 @@ class LDAPSource(Source):
default="objectSid", help_text=_("Field which contains a unique Identifier.")
)
property_mappings_group = models.ManyToManyField(
PropertyMapping,
default=None,
blank=True,
help_text=_("Property mappings used for group creation/updating."),
)
sync_users = models.BooleanField(default=True)
sync_users_password = models.BooleanField(
default=True,

52
authentik/sources/ldap/sync/base.py
View File

@ -1,9 +1,12 @@
"""Sync LDAP Users and groups into authentik"""
from typing import Any
from django.db.models.query import QuerySet
from structlog.stdlib import BoundLogger, get_logger
from authentik.sources.ldap.models import LDAPSource
from authentik.core.exceptions import PropertyMappingExpressionException
from authentik.sources.ldap.auth import LDAP_DISTINGUISHED_NAME
from authentik.sources.ldap.models import LDAPPropertyMapping, LDAPSource
LDAP_UNIQUENESS = "ldap_uniq"
@ -43,3 +46,50 @@ class BaseLDAPSynchronizer:
return None
return value[0]
return value
def build_user_properties(self, user_dn: str, **kwargs) -> dict[str, Any]:
"""Build attributes for User object based on property mappings."""
return self._build_object_properties(
user_dn, self._source.property_mappings, **kwargs
)
def build_group_properties(self, group_dn: str, **kwargs) -> dict[str, Any]:
"""Build attributes for Group object based on property mappings."""
return self._build_object_properties(
group_dn, self._source.property_mappings_group, **kwargs
)
def _build_object_properties(
self, object_dn: str, mappings: QuerySet, **kwargs
) -> dict[str, dict[Any, Any]]:
properties = {"attributes": {}}
for mapping in mappings.all().select_subclasses():
if not isinstance(mapping, LDAPPropertyMapping):
continue
mapping: LDAPPropertyMapping
try:
value = mapping.evaluate(
user=None, request=None, ldap=kwargs, dn=object_dn
)
if value is None:
continue
object_field = mapping.object_field
if object_field.startswith("attributes."):
# Because returning a list might desired, we can't
# rely on self._flatten here. Instead, just save the result as-is
properties["attributes"][
object_field.replace("attributes.", "")
] = value
else:
properties[object_field] = self._flatten(value)
except PropertyMappingExpressionException as exc:
self._logger.warning(
"Mapping failed to evaluate", exc=exc, mapping=mapping
)
continue
if self._source.object_uniqueness_field in kwargs:
properties["attributes"][LDAP_UNIQUENESS] = self._flatten(
kwargs.get(self._source.object_uniqueness_field)
)
properties["attributes"][LDAP_DISTINGUISHED_NAME] = object_dn
return properties

32
authentik/sources/ldap/sync/groups.py
View File

@ -1,9 +1,9 @@
"""Sync LDAP Users and groups into authentik"""
import ldap3
import ldap3.core.exceptions
from django.db.utils import IntegrityError
from authentik.core.models import Group
from authentik.sources.ldap.auth import LDAP_DISTINGUISHED_NAME
from authentik.sources.ldap.sync.base import LDAP_UNIQUENESS, BaseLDAPSynchronizer
@ -34,22 +34,28 @@ class GroupLDAPSynchronizer(BaseLDAPSynchronizer):
dn=group_dn,
)
continue
uniq = attributes[self._source.object_uniqueness_field]
# TODO: Use Property Mappings
name = self._flatten(attributes.get("name", ""))
_, created = Group.objects.update_or_create(
uniq = self._flatten(attributes[self._source.object_uniqueness_field])
try:
defaults = self.build_group_properties(group_dn, **attributes)
self._logger.debug("Creating group with attributes", **defaults)
if "name" not in defaults:
raise IntegrityError("Name was not set by propertymappings")
ak_group, created = Group.objects.update_or_create(
**{
f"attributes__{LDAP_UNIQUENESS}": uniq,
"parent": self._source.sync_parent_group,
"defaults": {
"name": name,
"attributes": {
LDAP_UNIQUENESS: uniq,
LDAP_DISTINGUISHED_NAME: group_dn,
},
},
"defaults": defaults,
}
)
self._logger.debug("Synced group", group=name, created=created)
except IntegrityError as exc:
self._logger.warning("Failed to create group", exc=exc)
self._logger.warning(
(
"To merge new group with existing group, set the group's "
f"Attribute '{LDAP_UNIQUENESS}' to '{uniq}'"
)
)
else:
self._logger.debug("Synced group", group=ak_group.name, created=created)
group_count += 1
return group_count

54
authentik/sources/ldap/sync/users.py
View File

@ -1,14 +1,9 @@
"""Sync LDAP Users into authentik"""
from typing import Any
import ldap3
import ldap3.core.exceptions
from django.db.utils import IntegrityError
from authentik.core.exceptions import PropertyMappingExpressionException
from authentik.core.models import User
from authentik.sources.ldap.auth import LDAP_DISTINGUISHED_NAME
from authentik.sources.ldap.models import LDAPPropertyMapping
from authentik.sources.ldap.sync.base import LDAP_UNIQUENESS, BaseLDAPSynchronizer
@ -39,11 +34,11 @@ class UserLDAPSynchronizer(BaseLDAPSynchronizer):
continue
uniq = self._flatten(attributes[self._source.object_uniqueness_field])
try:
defaults = self._build_object_properties(user_dn, **attributes)
defaults = self.build_user_properties(user_dn, **attributes)
self._logger.debug("Creating user with attributes", **defaults)
if "username" not in defaults:
raise IntegrityError("Username was not set by propertymappings")
user, created = User.objects.update_or_create(
ak_user, created = User.objects.update_or_create(
**{
f"attributes__{LDAP_UNIQUENESS}": uniq,
"defaults": defaults,
@ -53,49 +48,16 @@ class UserLDAPSynchronizer(BaseLDAPSynchronizer):
self._logger.warning("Failed to create user", exc=exc)
self._logger.warning(
(
"To merge new User with existing user, set the User's "
"To merge new user with existing user, set the user's "
f"Attribute '{LDAP_UNIQUENESS}' to '{uniq}'"
)
)
else:
if created:
user.set_unusable_password()
user.save()
self._logger.debug("Synced User", user=user.username, created=created)
ak_user.set_unusable_password()
ak_user.save()
self._logger.debug(
"Synced User", user=ak_user.username, created=created
)
user_count += 1
return user_count
def _build_object_properties(
self, user_dn: str, **kwargs
) -> dict[str, dict[Any, Any]]:
properties = {"attributes": {}}
for mapping in self._source.property_mappings.all().select_subclasses():
if not isinstance(mapping, LDAPPropertyMapping):
continue
mapping: LDAPPropertyMapping
try:
value = mapping.evaluate(
user=None, request=None, ldap=kwargs, dn=user_dn
)
if value is None:
continue
object_field = mapping.object_field
if object_field.startswith("attributes."):
# Because returning a list might desired, we can't
# rely on self._flatten here. Instead, just save the result as-is
properties["attributes"][
object_field.replace("attributes.", "")
] = value
else:
properties[object_field] = self._flatten(value)
except PropertyMappingExpressionException as exc:
self._logger.warning(
"Mapping failed to evaluate", exc=exc, mapping=mapping
)
continue
if self._source.object_uniqueness_field in kwargs:
properties["attributes"][LDAP_UNIQUENESS] = self._flatten(
kwargs.get(self._source.object_uniqueness_field)
)
properties["attributes"][LDAP_DISTINGUISHED_NAME] = user_dn
return properties

4
authentik/sources/ldap/tests/mock_slapd.py
View File

@ -26,7 +26,7 @@ def mock_slapd_connection(password: str) -> Connection:
connection.strategy.add_entry(
"cn=group1,ou=groups,dc=goauthentik,dc=io",
{
"name": "test-group",
"cn": "group1",
"uid": "unique-test-group",
"objectClass": "groupOfNames",
"member": ["cn=user0,ou=users,dc=goauthentik,dc=io"],
@ -36,7 +36,7 @@ def mock_slapd_connection(password: str) -> Connection:
connection.strategy.add_entry(
"cn=group2,ou=groups,dc=goauthentik,dc=io",
{
"name": "test-group",
"cn": "group2",
"objectClass": "groupOfNames",
},
)

12
authentik/sources/ldap/tests/test_sync.py
View File

@ -72,6 +72,11 @@ class LDAPSyncTests(TestCase):
| Q(name__startswith="authentik default Active Directory Mapping")
)
)
self.source.property_mappings_group.set(
LDAPPropertyMapping.objects.filter(
name="authentik default LDAP Mapping: name"
)
)
self.source.save()
connection = PropertyMock(return_value=mock_ad_connection(LDAP_PASSWORD))
with patch("authentik.sources.ldap.models.LDAPSource.connection", connection):
@ -92,6 +97,11 @@ class LDAPSyncTests(TestCase):
| Q(name__startswith="authentik default OpenLDAP Mapping")
)
)
self.source.property_mappings_group.set(
LDAPPropertyMapping.objects.filter(
name="authentik default OpenLDAP Mapping: cn"
)
)
self.source.save()
connection = PropertyMock(return_value=mock_slapd_connection(LDAP_PASSWORD))
with patch("authentik.sources.ldap.models.LDAPSource.connection", connection):
@ -99,7 +109,7 @@ class LDAPSyncTests(TestCase):
group_sync.sync()
membership_sync = MembershipLDAPSynchronizer(self.source)
membership_sync.sync()
group = Group.objects.filter(name="test-group")
group = Group.objects.filter(name="group1")
self.assertTrue(group.exists())
def test_tasks_ad(self):

8
swagger.yaml
View File

@ -9172,6 +9172,14 @@ definitions:
type: string
format: uuid
uniqueItems: true
property_mappings_group:
description: Property mappings used for group creation/updating.
type: array
items:
description: Property mappings used for group creation/updating.
type: string
format: uuid
uniqueItems: true
OAuthSource:
description: OAuth Source Serializer
required: