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# -*- coding: utf-8 -*-
# Copyright 2015 Niklas Riekenbrauck
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import Config, ConfigError
MISSING_LDAP3 = (
"Missing ldap3 library. This is required for LDAP Authentication."
)
class LDAPMode(object):
SIMPLE = "simple",
SEARCH = "search",
LIST = (SIMPLE, SEARCH)
class LDAPConfig(Config):
def read_config(self, config):
ldap_config = config.get("ldap_config", {})
self.ldap_enabled = ldap_config.get("enabled", False)
if self.ldap_enabled:
# verify dependencies are available
try:
import ldap3
ldap3 # to stop unused lint
except ImportError:
raise ConfigError(MISSING_LDAP3)
self.ldap_mode = LDAPMode.SIMPLE
# verify config sanity
self.require_keys(ldap_config, [
"uri",
"base",
"attributes",
])
self.ldap_uri = ldap_config["uri"]
self.ldap_start_tls = ldap_config.get("start_tls", False)
self.ldap_base = ldap_config["base"]
self.ldap_attributes = ldap_config["attributes"]
if "bind_dn" in ldap_config:
self.ldap_mode = LDAPMode.SEARCH
self.require_keys(ldap_config, [
"bind_dn",
"bind_password",
])
self.ldap_bind_dn = ldap_config["bind_dn"]
self.ldap_bind_password = ldap_config["bind_password"]
self.ldap_filter = ldap_config.get("filter", None)
# verify attribute lookup
self.require_keys(ldap_config['attributes'], [
"uid",
"name",
"mail",
])
def require_keys(self, config, required):
missing = [key for key in required if key not in config]
if missing:
raise ConfigError(
"LDAP enabled but missing required config values: {}".format(
", ".join(missing)
)
)
def default_config(self, **kwargs):
return """\
# ldap_config:
# enabled: true
# uri: "ldap://ldap.example.com:389"
# start_tls: true
# base: "ou=users,dc=example,dc=com"
# attributes:
# uid: "cn"
# mail: "email"
# name: "givenName"
# #bind_dn:
# #bind_password:
# #filter: "(objectClass=posixAccount)"
"""
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