Merge branch 'ldap-rewrite' into 'master'

LDAP rewrite

See merge request BeryJu.org/passbook!28
This commit is contained in:
Jens Langhammer 2019-10-11 12:22:39 +00:00
commit 78c74cd469
15 changed files with 394 additions and 433 deletions

View File

@ -1,8 +1,9 @@
"""passbook LDAP Authentication Backend"""
from django.contrib.auth.backends import ModelBackend
from django.http import HttpRequest
from structlog import get_logger
from passbook.sources.ldap.ldap_connector import LDAPConnector
from passbook.sources.ldap.connector import Connector
from passbook.sources.ldap.models import LDAPSource
LOGGER = get_logger()
@ -11,12 +12,13 @@ LOGGER = get_logger()
class LDAPBackend(ModelBackend):
"""Authenticate users against LDAP Server"""
def authenticate(self, **kwargs):
def authenticate(self, request: HttpRequest, **kwargs):
"""Try to authenticate a user via ldap"""
if 'password' not in kwargs:
return None
for source in LDAPSource.objects.filter(enabled=True):
_ldap = LDAPConnector(source)
LOGGER.debug("LDAP Auth attempt", source=source)
_ldap = Connector(source)
user = _ldap.auth_user(**kwargs)
if user:
return user

View File

@ -0,0 +1,158 @@
"""Wrapper for ldap3 to easily manage user"""
from typing import Any, Dict, Optional
import ldap3
import ldap3.core.exceptions
from structlog import get_logger
from passbook.core.models import Group, User
from passbook.sources.ldap.models import LDAPSource
LOGGER = get_logger()
class Connector:
"""Wrapper for ldap3 to easily manage user authentication and creation"""
_server: ldap3.Server
_connection = ldap3.Connection
_source: LDAPSource
def __init__(self, source: LDAPSource):
self._source = source
self._server = ldap3.Server(source.server_uri) # Implement URI parsing
def bind(self):
"""Bind using Source's Credentials"""
self._connection = ldap3.Connection(self._server, raise_exceptions=True,
user=self._source.bind_cn,
password=self._source.bind_password)
self._connection.bind()
if self._source.start_tls:
self._connection.start_tls()
@staticmethod
def encode_pass(password: str) -> bytes:
"""Encodes a plain-text password so it can be used by AD"""
return '"{}"'.format(password).encode('utf-16-le')
@property
def base_dn_users(self) -> str:
"""Shortcut to get full base_dn for user lookups"""
return ','.join([self._source.additional_user_dn, self._source.base_dn])
@property
def base_dn_groups(self) -> str:
"""Shortcut to get full base_dn for group lookups"""
return ','.join([self._source.additional_group_dn, self._source.base_dn])
def sync_groups(self):
"""Iterate over all LDAP Groups and create passbook_core.Group instances"""
if not self._source.sync_groups:
LOGGER.debug("Group syncing is disabled for this Source")
return
groups = self._connection.extend.standard.paged_search(
search_base=self.base_dn_groups,
search_filter=self._source.group_object_filter,
search_scope=ldap3.SUBTREE,
attributes=ldap3.ALL_ATTRIBUTES)
for group in groups:
attributes = group.get('attributes', {})
_, created = Group.objects.update_or_create(
attributes__ldap_uniq=attributes.get(self._source.object_uniqueness_field, ''),
parent=self._source.sync_parent_group,
# defaults=self._build_object_properties(attributes),
defaults={
'name': attributes.get('name', ''),
'attributes': {
'ldap_uniq': attributes.get(self._source.object_uniqueness_field, ''),
'distinguishedName': attributes.get('distinguishedName')
}
}
)
LOGGER.debug("Synced group", group=attributes.get('name', ''), created=created)
def sync_users(self):
"""Iterate over all LDAP Users and create passbook_core.User instances"""
users = self._connection.extend.standard.paged_search(
search_base=self.base_dn_users,
search_filter=self._source.user_object_filter,
search_scope=ldap3.SUBTREE,
attributes=ldap3.ALL_ATTRIBUTES)
for user in users:
attributes = user.get('attributes', {})
_, created = User.objects.update_or_create(
attributes__ldap_uniq=attributes.get(self._source.object_uniqueness_field, ''),
defaults=self._build_object_properties(attributes),
)
LOGGER.debug("Synced User", user=attributes.get('name', ''), created=created)
def sync_membership(self):
"""Iterate over all Users and assign Groups using memberOf Field"""
users = self._connection.extend.standard.paged_search(
search_base=self.base_dn_users,
search_filter=self._source.user_object_filter,
search_scope=ldap3.SUBTREE,
attributes=[
self._source.user_group_membership_field,
self._source.object_uniqueness_field])
group_cache: Dict[str, Group] = {}
for user in users:
member_of = user.get('attributes', {}).get(self._source.user_group_membership_field, [])
uniq = user.get('attributes', {}).get(self._source.object_uniqueness_field, [])
for group_dn in member_of:
# Check if group_dn is within our base_dn_groups, and skip if not
if not group_dn.endswith(self.base_dn_groups):
continue
# Check if we fetched the group already, and if not cache it for later
if group_dn not in group_cache:
groups = Group.objects.filter(attributes__distinguishedName=group_dn)
if not groups.exists():
LOGGER.warning("Group does not exist in our DB yet, run sync_groups first.",
group=group_dn)
return
group_cache[group_dn] = groups.first()
group = group_cache[group_dn]
users = User.objects.filter(attributes__ldap_uniq=uniq)
group.user_set.add(*list(users))
# Now that all users are added, lets write everything
for _, group in group_cache.items():
group.save()
LOGGER.debug("Successfully updated group membership")
def _build_object_properties(self, attributes: Dict[str, Any]) -> Dict[str, Dict[Any, Any]]:
properties = {
'attributes': {}
}
for mapping in self._source.property_mappings.all().select_subclasses():
properties[mapping.object_field] = attributes.get(mapping.ldap_property, '')
if self._source.object_uniqueness_field in attributes:
properties['attributes']['ldap_uniq'] = \
attributes.get(self._source.object_uniqueness_field)
properties['attributes']['distinguishedName'] = attributes.get('distinguishedName')
return properties
def auth_user(self, password: str, **filters: Dict[str, str]) -> Optional[User]:
"""Try to bind as either user_dn or mail with password.
Returns True on success, otherwise False"""
users = User.objects.filter(**filters)
if not users.exists():
return None
user = users.first()
if 'distinguishedName' not in user.attributes:
LOGGER.debug("User doesn't have DN set, assuming not LDAP imported.", user=user)
return None
# Try to bind as new user
LOGGER.debug("Attempting Binding as user", user=user)
try:
temp_connection = ldap3.Connection(self._server,
user=user.attributes.get('distinguishedName'),
password=password, raise_exceptions=True)
temp_connection.bind()
return user
except ldap3.core.exceptions.LDAPInvalidCredentialsResult as exception:
LOGGER.debug("LDAPInvalidCredentialsResult", user=user)
except ldap3.core.exceptions.LDAPException as exception:
LOGGER.warning(exception)
return None

View File

@ -5,8 +5,7 @@ from django.contrib.admin.widgets import FilteredSelectMultiple
from django.utils.translation import gettext_lazy as _
from passbook.admin.forms.source import SOURCE_FORM_FIELDS
from passbook.core.forms.policies import GENERAL_FIELDS
from passbook.sources.ldap.models import LDAPGroupMembershipPolicy, LDAPSource
from passbook.sources.ldap.models import LDAPPropertyMapping, LDAPSource
class LDAPSourceForm(forms.ModelForm):
@ -15,36 +14,56 @@ class LDAPSourceForm(forms.ModelForm):
class Meta:
model = LDAPSource
fields = SOURCE_FORM_FIELDS + ['server_uri', 'bind_cn', 'bind_password',
'type', 'domain', 'base_dn', 'create_user',
'reset_password']
fields = SOURCE_FORM_FIELDS + [
'server_uri',
'bind_cn',
'bind_password',
'start_tls',
'base_dn',
'additional_user_dn',
'additional_group_dn',
'user_object_filter',
'group_object_filter',
'user_group_membership_field',
'object_uniqueness_field',
'sync_groups',
'sync_parent_group',
'property_mappings',
]
widgets = {
'name': forms.TextInput(),
'server_uri': forms.TextInput(),
'bind_cn': forms.TextInput(),
'bind_password': forms.TextInput(),
'domain': forms.TextInput(),
'base_dn': forms.TextInput(),
'policies': FilteredSelectMultiple(_('policies'), False)
'additional_user_dn': forms.TextInput(),
'additional_group_dn': forms.TextInput(),
'user_object_filter': forms.TextInput(),
'group_object_filter': forms.TextInput(),
'user_group_membership_field': forms.TextInput(),
'object_uniqueness_field': forms.TextInput(),
'policies': FilteredSelectMultiple(_('policies'), False),
'property_mappings': FilteredSelectMultiple(_('Property Mappings'), False)
}
labels = {
'server_uri': _('Server URI'),
'bind_cn': _('Bind CN'),
'start_tls': _('Enable Start TLS'),
'base_dn': _('Base DN'),
'additional_user_dn': _('Addition User DN'),
'additional_group_dn': _('Addition Group DN'),
}
class LDAPGroupMembershipPolicyForm(forms.ModelForm):
"""LDAPGroupMembershipPolicy Form"""
class LDAPPropertyMappingForm(forms.ModelForm):
"""LDAP Property Mapping form"""
class Meta:
model = LDAPGroupMembershipPolicy
fields = GENERAL_FIELDS + ['dn', ]
model = LDAPPropertyMapping
fields = ['name', 'ldap_property', 'object_field']
widgets = {
'name': forms.TextInput(),
'dn': forms.TextInput(),
}
labels = {
'dn': _('DN')
'ldap_property': forms.TextInput(),
'object_field': forms.TextInput(),
}

View File

@ -1,293 +0,0 @@
"""Wrapper for ldap3 to easily manage user"""
from time import time
import ldap3
import ldap3.core.exceptions
from structlog import get_logger
from passbook.core.models import User
from passbook.lib.config import CONFIG
from passbook.sources.ldap.models import LDAPSource
LOGGER = get_logger()
USERNAME_FIELD = CONFIG.y('ldap.username_field', 'sAMAccountName')
LOGIN_FIELD = CONFIG.y('ldap.login_field', 'userPrincipalName')
class LDAPConnector:
"""Wrapper for ldap3 to easily manage user authentication and creation"""
_server = None
_connection = None
_source = None
def __init__(self, source: LDAPSource):
self._source = source
if not self._source.enabled:
LOGGER.debug("LDAP not Enabled")
# if not con_args:
# con_args = {}
# if not server_args:
# server_args = {}
# Either use mock argument or test is in argv
# if mock or any('test' in arg for arg in sys.argv):
# self.mock = True
# self.create_users_enabled = True
# con_args['client_strategy'] = ldap3.MOCK_SYNC
# server_args['get_info'] = ldap3.OFFLINE_AD_2012_R2
# if self.mock:
# json_path = os.path.join(os.path.dirname(__file__), 'tests', 'ldap_mock.json')
# self._connection.strategy.entries_from_json(json_path)
self._server = ldap3.Server(source.server_uri) # Implement URI parsing
self._connection = ldap3.Connection(self._server, raise_exceptions=True,
user=source.bind_cn,
password=source.bind_password)
self._connection.bind()
# if CONFIG.y('ldap.server.use_tls'):
# self._connection.start_tls()
# @staticmethod
# def cleanup_mock():
# """Cleanup mock files which are not this PID's"""
# pid = os.getpid()
# json_path = os.path.join(os.path.dirname(__file__), 'test', 'ldap_mock_%d.json' % pid)
# os.unlink(json_path)
# LOGGER.debug("Cleaned up LDAP Mock from PID %d", pid)
# def apply_db(self):
# """Check if any unapplied LDAPModification's are left"""
# to_apply = LDAPModification.objects.filter(_purgeable=False)
# for obj in to_apply:
# try:
# if obj.action == LDAPModification.ACTION_ADD:
# self._connection.add(obj.dn, obj.data)
# elif obj.action == LDAPModification.ACTION_MODIFY:
# self._connection.modify(obj.dn, obj.data)
# # Object has been successfully applied to LDAP
# obj.delete()
# except ldap3.core.exceptions.LDAPException as exc:
# LOGGER.error(exc)
# LOGGER.debug("Recovered %d Modifications from DB.", len(to_apply))
# @staticmethod
# def handle_ldap_error(object_dn, action, data):
# """Custom Handler for LDAP methods to write LDIF to DB"""
# LDAPModification.objects.create(
# dn=object_dn,
# action=action,
# data=data)
# @property
# def enabled(self):
# """Returns whether LDAP is enabled or not"""
# return CONFIG.y('ldap.enabled')
@staticmethod
def encode_pass(password):
"""Encodes a plain-text password so it can be used by AD"""
return '"{}"'.format(password).encode('utf-16-le')
def generate_filter(self, **fields):
"""Generate LDAP filter from **fields."""
filters = []
for item, value in fields.items():
filters.append("(%s=%s)" % (item, value))
ldap_filter = "(&%s)" % "".join(filters)
LOGGER.debug("Constructed filter: '%s'", ldap_filter)
return ldap_filter
def lookup(self, ldap_filter: str):
"""Search email in LDAP and return the DN.
Returns False if nothing was found."""
try:
self._connection.search(self._source.search_base, ldap_filter)
results = self._connection.response
if len(results) >= 1:
if 'dn' in results[0]:
return str(results[0]['dn'])
except ldap3.core.exceptions.LDAPNoSuchObjectResult as exc:
LOGGER.warning(exc)
return False
except ldap3.core.exceptions.LDAPInvalidDnError as exc:
LOGGER.warning(exc)
return False
return False
def _get_or_create_user(self, user_data):
"""Returns a Django user for the given LDAP user data.
If the user does not exist, then it will be created."""
attributes = user_data.get("attributes")
if attributes is None:
LOGGER.warning("LDAP user attributes empty")
return None
# Create the user data.
field_map = {
'username': '%(' + USERNAME_FIELD + ')s',
'name': '%(givenName)s %(sn)s',
'email': '%(mail)s',
}
user_fields = {}
for dj_field, ldap_field in field_map.items():
user_fields[dj_field] = ldap_field % attributes
# Update or create the user.
user, created = User.objects.update_or_create(
defaults=user_fields,
username=user_fields.pop('username', "")
)
# Update groups
# if 'memberOf' in attributes:
# applicable_groups = LDAPGroupMapping.objects.f
# ilter(ldap_dn__in=attributes['memberOf'])
# for group in applicable_groups:
# if group.group not in user.groups.all():
# user.groups.add(group.group)
# user.save()
# If the user was created, set them an unusable password.
if created:
user.set_unusable_password()
user.save()
# All done!
LOGGER.debug("LDAP user lookup succeeded")
return user
def auth_user(self, password, **filters):
"""Try to bind as either user_dn or mail with password.
Returns True on success, otherwise False"""
filters.pop('request')
if not self._source.enabled:
return None
# FIXME: Adapt user_uid
# email = filters.pop(CONFIG.y('passport').get('ldap').get, '')
email = filters.pop('email')
user_dn = self.lookup(self.generate_filter(**{LOGIN_FIELD: email}))
if not user_dn:
return None
# Try to bind as new user
LOGGER.debug("Binding as '%s'", user_dn)
try:
temp_connection = ldap3.Connection(self._server, user=user_dn,
password=password, raise_exceptions=True)
temp_connection.bind()
if self._connection.search(
search_base=self._source.search_base,
search_filter=self.generate_filter(**{LOGIN_FIELD: email}),
search_scope=ldap3.SUBTREE,
attributes=[ldap3.ALL_ATTRIBUTES, ldap3.ALL_OPERATIONAL_ATTRIBUTES],
get_operational_attributes=True,
size_limit=1,
):
response = self._connection.response[0]
# If user has no email set in AD, use UPN
if 'mail' not in response.get('attributes'):
response['attributes']['mail'] = response['attributes']['userPrincipalName']
return self._get_or_create_user(response)
LOGGER.warning("LDAP user lookup failed")
return None
except ldap3.core.exceptions.LDAPInvalidCredentialsResult as exception:
LOGGER.debug("User '%s' failed to login (Wrong credentials)", user_dn)
except ldap3.core.exceptions.LDAPException as exception:
LOGGER.warning(exception)
return None
def is_email_used(self, mail):
"""Checks whether an email address is already registered in LDAP"""
if self._source.create_user:
return self.lookup(self.generate_filter(mail=mail))
return False
def create_ldap_user(self, user, raw_password):
"""Creates a new LDAP User from a django user and raw_password.
Returns True on success, otherwise False"""
if self._source.create_user:
LOGGER.debug("User creation not enabled")
return False
# The dn of our new entry/object
username = user.pk.hex # UUID without dashes
# sAMAccountName is limited to 20 chars
# https://msdn.microsoft.com/en-us/library/ms679635.aspx
username_trunk = username[:20] if len(username) > 20 else username
# AD doesn't like sAMAccountName's with . at the end
username_trunk = username_trunk[:-1] if username_trunk[-1] == '.' else username_trunk
user_dn = 'cn=' + username + ',' + self._source.search_base
LOGGER.debug('New DN: %s', user_dn)
attrs = {
'distinguishedName': str(user_dn),
'cn': str(username),
'description': 't=' + str(time()),
'sAMAccountName': str(username_trunk),
'givenName': str(user.name),
'displayName': str(user.username),
'name': str(user.name),
'mail': str(user.email),
'userPrincipalName': str(username + '@' + self._source.domain),
'objectClass': ['top', 'person', 'organizationalPerson', 'user'],
}
try:
self._connection.add(user_dn, attributes=attrs)
except ldap3.core.exceptions.LDAPException as exception:
LOGGER.warning("Failed to create user ('%s'), saved to DB", exception)
# LDAPConnector.handle_ldap_error(user_dn, LDAPModification.ACTION_ADD, attrs)
LOGGER.debug("Signed up user %s", user.email)
return self.change_password(raw_password, mail=user.email)
def _do_modify(self, diff, **fields):
"""Do the LDAP modification itself"""
user_dn = self.lookup(self.generate_filter(**fields))
try:
self._connection.modify(user_dn, diff)
except ldap3.core.exceptions.LDAPException as exception:
LOGGER.warning("Failed to modify %s ('%s'), saved to DB", user_dn, exception)
# LDAPConnector.handle_ldap_error(user_dn, LDAPModification.ACTION_MODIFY, diff)
LOGGER.debug("modified account '%s' [%s]", user_dn, ','.join(diff.keys()))
return 'result' in self._connection.result and self._connection.result['result'] == 0
def disable_user(self, **fields):
"""Disables LDAP user based on mail or user_dn.
Returns True on success, otherwise False"""
diff = {
'userAccountControl': [(ldap3.MODIFY_REPLACE, [str(66050)])],
}
return self._do_modify(diff, **fields)
def enable_user(self, **fields):
"""Enables LDAP user based on mail or user_dn.
Returns True on success, otherwise False"""
diff = {
'userAccountControl': [(ldap3.MODIFY_REPLACE, [str(66048)])],
}
return self._do_modify(diff, **fields)
def change_password(self, new_password, **fields):
"""Changes LDAP user's password based on mail or user_dn.
Returns True on success, otherwise False"""
diff = {
'unicodePwd': [(ldap3.MODIFY_REPLACE, [LDAPConnector.encode_pass(new_password)])],
}
return self._do_modify(diff, **fields)
def add_to_group(self, group_dn, **fields):
"""Adds mail or user_dn to group_dn
Returns True on success, otherwise False"""
user_dn = self.lookup(**fields)
diff = {
'member': [(ldap3.MODIFY_ADD), [user_dn]]
}
return self._do_modify(diff, user_dn=group_dn)
def remove_from_group(self, group_dn, **fields):
"""Removes mail or user_dn from group_dn
Returns True on success, otherwise False"""
user_dn = self.lookup(**fields)
diff = {
'member': [(ldap3.MODIFY_DELETE), [user_dn]]
}
return self._do_modify(diff, user_dn=group_dn)

View File

@ -1,5 +1,6 @@
# Generated by Django 2.2.6 on 2019-10-07 14:07
# Generated by Django 2.2.6 on 2019-10-08 20:43
import django.core.validators
import django.db.models.deletion
from django.db import migrations, models
@ -13,18 +14,33 @@ class Migration(migrations.Migration):
]
operations = [
migrations.CreateModel(
name='LDAPPropertyMapping',
fields=[
('propertymapping_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='passbook_core.PropertyMapping')),
('ldap_property', models.TextField()),
('object_field', models.TextField()),
],
options={
'abstract': False,
},
bases=('passbook_core.propertymapping',),
),
migrations.CreateModel(
name='LDAPSource',
fields=[
('source_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='passbook_core.Source')),
('server_uri', models.TextField()),
('server_uri', models.URLField(validators=[django.core.validators.URLValidator(schemes=['ldap', 'ldaps'])])),
('bind_cn', models.TextField()),
('bind_password', models.TextField()),
('type', models.CharField(choices=[('ad', 'Active Directory'), ('generic', 'Generic')], max_length=20)),
('domain', models.TextField()),
('start_tls', models.BooleanField(default=False)),
('base_dn', models.TextField()),
('create_user', models.BooleanField(default=False)),
('reset_password', models.BooleanField(default=True)),
('additional_user_dn', models.TextField(help_text='Prepended to Base DN for User-queries.')),
('additional_group_dn', models.TextField(help_text='Prepended to Base DN for Group-queries.')),
('user_object_filter', models.TextField()),
('group_object_filter', models.TextField()),
('sync_groups', models.BooleanField(default=True)),
('sync_parent_group', models.ForeignKey(blank=True, default=None, on_delete=django.db.models.deletion.SET_DEFAULT, to='passbook_core.Group')),
],
options={
'verbose_name': 'LDAP Source',
@ -32,17 +48,4 @@ class Migration(migrations.Migration):
},
bases=('passbook_core.source',),
),
migrations.CreateModel(
name='LDAPGroupMembershipPolicy',
fields=[
('policy_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='passbook_core.Policy')),
('dn', models.TextField()),
('source', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='passbook_sources_ldap.LDAPSource')),
],
options={
'verbose_name': 'LDAP Group Membership Policy',
'verbose_name_plural': 'LDAP Group Membership Policys',
},
bases=('passbook_core.policy',),
),
]

View File

@ -0,0 +1,17 @@
# Generated by Django 2.2.6 on 2019-10-11 08:25
from django.db import migrations
class Migration(migrations.Migration):
dependencies = [
('passbook_sources_ldap', '0001_initial'),
]
operations = [
migrations.AlterModelOptions(
name='ldappropertymapping',
options={'verbose_name': 'LDAP Property Mapping', 'verbose_name_plural': 'LDAP Property Mappings'},
),
]

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@ -0,0 +1,32 @@
# Generated by Django 2.2.6 on 2019-10-11 08:25
from django.apps.registry import Apps
from django.db import migrations
def create_default_ad_property_mappings(apps: Apps, schema_editor):
LDAPPropertyMapping = apps.get_model('passbook_sources_ldap', 'LDAPPropertyMapping')
mapping = {
'name': 'name',
'givenName': 'first_name',
'sn': 'last_name',
'sAMAccountName': 'username',
'mail': 'email'
}
for ldap_property, object_field in mapping.items():
LDAPPropertyMapping.objects.get_or_create(
ldap_property=ldap_property,
object_field=object_field,
defaults={
'name': f"Autogenerated LDAP Mapping: {ldap_property} -> {object_field}"
})
class Migration(migrations.Migration):
dependencies = [
('passbook_sources_ldap', '0002_auto_20191011_0825'),
]
operations = [
migrations.RunPython(create_default_ad_property_mappings)
]

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@ -0,0 +1,25 @@
# Generated by Django 2.2.6 on 2019-10-11 08:39
import django.core.validators
import django.db.models.deletion
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('passbook_sources_ldap', '0003_auto_20191011_0825'),
]
operations = [
migrations.AlterField(
model_name='ldapsource',
name='server_uri',
field=models.TextField(validators=[django.core.validators.URLValidator(schemes=['ldap', 'ldaps'])]),
),
migrations.AlterField(
model_name='ldapsource',
name='sync_parent_group',
field=models.ForeignKey(blank=True, default=None, null=True, on_delete=django.db.models.deletion.SET_DEFAULT, to='passbook_core.Group'),
),
]

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@ -0,0 +1,33 @@
# Generated by Django 2.2.6 on 2019-10-11 10:59
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('passbook_sources_ldap', '0004_auto_20191011_0839'),
]
operations = [
migrations.AddField(
model_name='ldapsource',
name='object_uniqueness_field',
field=models.TextField(default='objectSid', help_text='Field which contains a unique Identifier.'),
),
migrations.AddField(
model_name='ldapsource',
name='user_group_membership_field',
field=models.TextField(default='memberOf', help_text='Field which contains Groups of user.'),
),
migrations.AlterField(
model_name='ldapsource',
name='group_object_filter',
field=models.TextField(default='(objectCategory=Group)', help_text='Consider Objects matching this filter to be Groups.'),
),
migrations.AlterField(
model_name='ldapsource',
name='user_object_filter',
field=models.TextField(default='(objectCategory=Person)', help_text='Consider Objects matching this filter to be Users.'),
),
]

View File

@ -1,30 +1,36 @@
"""passbook LDAP Models"""
from django.core.validators import URLValidator
from django.db import models
from django.utils.translation import gettext as _
from passbook.core.models import Policy, Source, User
from passbook.core.models import Group, PropertyMapping, Source
class LDAPSource(Source):
"""LDAP Authentication source"""
TYPE_ACTIVE_DIRECTORY = 'ad'
TYPE_GENERIC = 'generic'
TYPES = (
(TYPE_ACTIVE_DIRECTORY, _('Active Directory')),
(TYPE_GENERIC, _('Generic')),
)
server_uri = models.TextField()
server_uri = models.TextField(validators=[URLValidator(schemes=['ldap', 'ldaps'])])
bind_cn = models.TextField()
bind_password = models.TextField()
type = models.CharField(max_length=20, choices=TYPES)
start_tls = models.BooleanField(default=False)
domain = models.TextField()
base_dn = models.TextField()
create_user = models.BooleanField(default=False)
reset_password = models.BooleanField(default=True)
additional_user_dn = models.TextField(help_text=_('Prepended to Base DN for User-queries.'))
additional_group_dn = models.TextField(help_text=_('Prepended to Base DN for Group-queries.'))
user_object_filter = models.TextField(default="(objectCategory=Person)", help_text=_(
'Consider Objects matching this filter to be Users.'))
user_group_membership_field = models.TextField(default="memberOf", help_text=_(
"Field which contains Groups of user."))
group_object_filter = models.TextField(default="(objectCategory=Group)", help_text=_(
'Consider Objects matching this filter to be Groups.'))
object_uniqueness_field = models.TextField(default="objectSid", help_text=_(
'Field which contains a unique Identifier.'))
sync_groups = models.BooleanField(default=True)
sync_parent_group = models.ForeignKey(Group, blank=True, null=True,
default=None, on_delete=models.SET_DEFAULT)
form = 'passbook.sources.ldap.forms.LDAPSourceForm'
@ -37,19 +43,19 @@ class LDAPSource(Source):
verbose_name = _('LDAP Source')
verbose_name_plural = _('LDAP Sources')
class LDAPGroupMembershipPolicy(Policy):
"""Policy to check if a user is in a certain LDAP Group"""
dn = models.TextField()
source = models.ForeignKey('LDAPSource', on_delete=models.CASCADE)
class LDAPPropertyMapping(PropertyMapping):
"""Map LDAP Property to User or Group object"""
form = 'passbook.sources.ldap.forms.LDAPGroupMembershipPolicyForm'
ldap_property = models.TextField()
object_field = models.TextField()
def passes(self, user: User):
"""Check if user instance passes this policy"""
raise NotImplementedError()
form = 'passbook.sources.ldap.forms.LDAPPropertyMappingForm'
def __str__(self):
return f"LDAP Property Mapping {self.ldap_property} -> {self.object_field}"
class Meta:
verbose_name = _('LDAP Group Membership Policy')
verbose_name_plural = _('LDAP Group Membership Policys')
verbose_name = _('LDAP Property Mapping')
verbose_name_plural = _('LDAP Property Mappings')

View File

@ -1,5 +1,13 @@
"""LDAP Settings"""
from celery.schedules import crontab
AUTHENTICATION_BACKENDS = [
'passbook.sources.ldap.auth.LDAPBackend',
]
CELERY_BEAT_SCHEDULE = {
'sync': {
'task': 'passbook.sources.ldap.tasks.sync',
'schedule': crontab(minute=0) # Run every hour
}
}

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@ -0,0 +1,31 @@
"""LDAP Sync tasks"""
from passbook.root.celery import CELERY_APP
from passbook.sources.ldap.connector import Connector
from passbook.sources.ldap.models import LDAPSource
@CELERY_APP.task()
def sync_groups(source_pk: int):
"""Sync LDAP Groups on background worker"""
source = LDAPSource.objects.get(pk=source_pk)
connector = Connector(source)
connector.bind()
connector.sync_groups()
@CELERY_APP.task()
def sync_users(source_pk: int):
"""Sync LDAP Users on background worker"""
source = LDAPSource.objects.get(pk=source_pk)
connector = Connector(source)
connector.bind()
connector.sync_users()
@CELERY_APP.task()
def sync():
"""Sync all sources"""
for source in LDAPSource.objects.filter(enabled=True):
connector = Connector(source)
connector.bind()
connector.sync_users()
connector.sync_groups()
connector.sync_membership()

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@ -1,33 +0,0 @@
{% extends "_admin/module_default.html" %}
{% load i18n %}
{% load utils %}
{% block title %}
{% title "Settings" %}
{% endblock %}
{% block module_content %}
<h2><clr-icon shape="application" size="32"></clr-icon>{% trans 'LDAP connection' %}</h2>
<div class="row">
<div class="col-md-12">
<div class="card">
<form role="form" method="POST">
<div class="card-block">
<h3><clr-icon shape="cog" size="32"></clr-icon>{% trans 'General settings' %}</h3>
{% include 'partials/form.html' with form=general %}
<h3><clr-icon shape="connect" size="32"></clr-icon>{% trans 'Connection settings' %}</h3>
{% include 'partials/form.html' with form=connection %}
<h3><clr-icon shape="certificate" size="32"></clr-icon>{% trans 'Authentication backend ' %}</h3>
{% include 'partials/form.html' with form=authentication %}
<h3><clr-icon shape="users" size="32"></clr-icon>{% trans 'Create users settings' %}</h3>
{% include 'partials/form.html' with form=create_users %}
</div>
<div class="card-footer">
<button type="submit" value="general" class="btn btn-sm btn-primary">{% trans 'Update' %}</button>
</div>
</form>
</div>
</div>
</div>
{% endblock %}

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@ -1,9 +0,0 @@
# """passbook LDAP Urls"""
# from django.conf.urls import url
# from passbook.mod.auth.ldap import views
# urlpatterns = [
# url(r'^settings/$', views.admin_settings, name='admin_settings'),
# ]

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@ -1,38 +0,0 @@
# """passbook LDAP Views"""
# from django.contrib import messages
# from django.contrib.auth.decorators import login_required, user_passes_test
# from django.http import HttpRequest, HttpResponse
# from django.shortcuts import redirect, render
# from django.urls import reverse
# from django.utils.translation import ugettext as _
# from passbook.sources.ldap.forms import (AuthenticationBackendSettings,
# ConnectionSettings,
# CreateUsersSettings,
# GeneralSettingsForm)
# @login_required
# @user_passes_test(lambda u: u.is_superuser)
# def admin_settings(request: HttpRequest) -> HttpResponse:
# """Default view for modules without admin view"""
# form_classes = {
# 'general': GeneralSettingsForm,
# 'connection': ConnectionSettings,
# 'authentication': AuthenticationBackendSettings,
# 'create_users': CreateUsersSettings,
# }
# render_data = {}
# for form_key, form_class in form_classes.items():
# render_data[form_key] = form_class(request.POST if request.method == 'POST' else None)
# if request.method == 'POST':
# update_count = 0
# for form_key, form_class in form_classes.items():
# form = form_class(request.POST)
# if form.is_valid():
# update_count += form.save()
# messages.success(request, _('Successfully updated %d settings.' % update_count))
# return redirect(reverse('passbook_ldap:admin_settings'))
# return render(request, 'ldap/settings.html', render_data)