diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/config/homeserver.py | 6 | ||||
| -rw-r--r-- | synapse/config/ldap.py | 100 | ||||
| -rw-r--r-- | synapse/config/password_auth_providers.py | 61 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 334 | ||||
| -rw-r--r-- | synapse/util/ldap_auth_provider.py | 368 |
5 files changed, 471 insertions, 398 deletions
diff --git a/synapse/config/homeserver.py b/synapse/config/homeserver.py index 79b0534b3b..0f890fc04a 100644 --- a/synapse/config/homeserver.py +++ b/synapse/config/homeserver.py @@ -30,7 +30,7 @@ from .saml2 import SAML2Config from .cas import CasConfig from .password import PasswordConfig from .jwt import JWTConfig -from .ldap import LDAPConfig +from .password_auth_providers import PasswordAuthProviderConfig from .emailconfig import EmailConfig from .workers import WorkerConfig @@ -39,8 +39,8 @@ class HomeServerConfig(TlsConfig, ServerConfig, DatabaseConfig, LoggingConfig, RatelimitConfig, ContentRepositoryConfig, CaptchaConfig, VoipConfig, RegistrationConfig, MetricsConfig, ApiConfig, AppServiceConfig, KeyConfig, SAML2Config, CasConfig, - JWTConfig, LDAPConfig, PasswordConfig, EmailConfig, - WorkerConfig,): + JWTConfig, PasswordConfig, EmailConfig, + WorkerConfig, PasswordAuthProviderConfig,): pass diff --git a/synapse/config/ldap.py b/synapse/config/ldap.py deleted file mode 100644 index d83c2230be..0000000000 --- a/synapse/config/ldap.py +++ /dev/null @@ -1,100 +0,0 @@ -# -*- 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)" - """ diff --git a/synapse/config/password_auth_providers.py b/synapse/config/password_auth_providers.py new file mode 100644 index 0000000000..f6d9bb1c62 --- /dev/null +++ b/synapse/config/password_auth_providers.py @@ -0,0 +1,61 @@ +# -*- coding: utf-8 -*- +# Copyright 2016 Openmarket +# +# 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 + +import importlib + + +class PasswordAuthProviderConfig(Config): + def read_config(self, config): + self.password_providers = [] + + # We want to be backwards compatible with the old `ldap_config` + # param. + ldap_config = config.get("ldap_config", {}) + self.ldap_enabled = ldap_config.get("enabled", False) + if self.ldap_enabled: + from synapse.util.ldap_auth_provider import LdapAuthProvider + parsed_config = LdapAuthProvider.parse_config(ldap_config) + self.password_providers.append((LdapAuthProvider, parsed_config)) + + providers = config.get("password_providers", []) + for provider in providers: + # We need to import the module, and then pick the class out of + # that, so we split based on the last dot. + module, clz = provider['module'].rsplit(".", 1) + module = importlib.import_module(module) + provider_class = getattr(module, clz) + + provider_config = provider_class.parse_config(provider["config"]) + self.password_providers.append((provider_class, provider_config)) + + def default_config(self, **kwargs): + return """\ + # password_providers: + # - module: "synapse.util.ldap_auth_provider.LdapAuthProvider" + # 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)" + """ diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 3933ce171a..9583ae1e93 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -20,7 +20,6 @@ from synapse.api.constants import LoginType from synapse.types import UserID from synapse.api.errors import AuthError, LoginError, Codes, StoreError, SynapseError from synapse.util.async import run_on_reactor -from synapse.config.ldap import LDAPMode from twisted.web.client import PartialDownloadError @@ -29,13 +28,6 @@ import bcrypt import pymacaroons import simplejson -try: - import ldap3 - import ldap3.core.exceptions -except ImportError: - ldap3 = None - pass - import synapse.util.stringutils as stringutils @@ -61,21 +53,14 @@ class AuthHandler(BaseHandler): self.sessions = {} self.INVALID_TOKEN_HTTP_STATUS = 401 - self.ldap_enabled = hs.config.ldap_enabled - if self.ldap_enabled: - if not ldap3: - raise RuntimeError( - 'Missing ldap3 library. This is required for LDAP Authentication.' - ) - self.ldap_mode = hs.config.ldap_mode - self.ldap_uri = hs.config.ldap_uri - self.ldap_start_tls = hs.config.ldap_start_tls - self.ldap_base = hs.config.ldap_base - self.ldap_attributes = hs.config.ldap_attributes - if self.ldap_mode == LDAPMode.SEARCH: - self.ldap_bind_dn = hs.config.ldap_bind_dn - self.ldap_bind_password = hs.config.ldap_bind_password - self.ldap_filter = hs.config.ldap_filter + account_handler = _AccountHandler( + hs, check_user_exists=self.check_user_exists + ) + + self.password_providers = [ + module(config=config, account_handler=account_handler) + for module, config in hs.config.password_providers + ] self.hs = hs # FIXME better possibility to access registrationHandler later? self.device_handler = hs.get_device_handler() @@ -477,9 +462,10 @@ class AuthHandler(BaseHandler): Raises: LoginError if the password was incorrect """ - valid_ldap = yield self._check_ldap_password(user_id, password) - if valid_ldap: - defer.returnValue(user_id) + for provider in self.password_providers: + is_valid = yield provider.check_password(user_id, password) + if is_valid: + defer.returnValue(user_id) result = yield self._check_local_password(user_id, password) defer.returnValue(result) @@ -505,275 +491,6 @@ class AuthHandler(BaseHandler): raise LoginError(403, "", errcode=Codes.FORBIDDEN) defer.returnValue(user_id) - def _ldap_simple_bind(self, server, localpart, password): - """ Attempt a simple bind with the credentials - given by the user against the LDAP server. - - Returns True, LDAP3Connection - if the bind was successful - Returns False, None - if an error occured - """ - - try: - # bind with the the local users ldap credentials - bind_dn = "{prop}={value},{base}".format( - prop=self.ldap_attributes['uid'], - value=localpart, - base=self.ldap_base - ) - conn = ldap3.Connection(server, bind_dn, password) - logger.debug( - "Established LDAP connection in simple bind mode: %s", - conn - ) - - if self.ldap_start_tls: - conn.start_tls() - logger.debug( - "Upgraded LDAP connection in simple bind mode through StartTLS: %s", - conn - ) - - if conn.bind(): - # GOOD: bind okay - logger.debug("LDAP Bind successful in simple bind mode.") - return True, conn - - # BAD: bind failed - logger.info( - "Binding against LDAP failed for '%s' failed: %s", - localpart, conn.result['description'] - ) - conn.unbind() - return False, None - - except ldap3.core.exceptions.LDAPException as e: - logger.warn("Error during LDAP authentication: %s", e) - return False, None - - def _ldap_authenticated_search(self, server, localpart, password): - """ Attempt to login with the preconfigured bind_dn - and then continue searching and filtering within - the base_dn - - Returns (True, LDAP3Connection) - if a single matching DN within the base was found - that matched the filter expression, and with which - a successful bind was achieved - - The LDAP3Connection returned is the instance that was used to - verify the password not the one using the configured bind_dn. - Returns (False, None) - if an error occured - """ - - try: - conn = ldap3.Connection( - server, - self.ldap_bind_dn, - self.ldap_bind_password - ) - logger.debug( - "Established LDAP connection in search mode: %s", - conn - ) - - if self.ldap_start_tls: - conn.start_tls() - logger.debug( - "Upgraded LDAP connection in search mode through StartTLS: %s", - conn - ) - - if not conn.bind(): - logger.warn( - "Binding against LDAP with `bind_dn` failed: %s", - conn.result['description'] - ) - conn.unbind() - return False, None - - # construct search_filter like (uid=localpart) - query = "({prop}={value})".format( - prop=self.ldap_attributes['uid'], - value=localpart - ) - if self.ldap_filter: - # combine with the AND expression - query = "(&{query}{filter})".format( - query=query, - filter=self.ldap_filter - ) - logger.debug( - "LDAP search filter: %s", - query - ) - conn.search( - search_base=self.ldap_base, - search_filter=query - ) - - if len(conn.response) == 1: - # GOOD: found exactly one result - user_dn = conn.response[0]['dn'] - logger.debug('LDAP search found dn: %s', user_dn) - - # unbind and simple bind with user_dn to verify the password - # Note: do not use rebind(), for some reason it did not verify - # the password for me! - conn.unbind() - return self._ldap_simple_bind(server, localpart, password) - else: - # BAD: found 0 or > 1 results, abort! - if len(conn.response) == 0: - logger.info( - "LDAP search returned no results for '%s'", - localpart - ) - else: - logger.info( - "LDAP search returned too many (%s) results for '%s'", - len(conn.response), localpart - ) - conn.unbind() - return False, None - - except ldap3.core.exceptions.LDAPException as e: - logger.warn("Error during LDAP authentication: %s", e) - return False, None - - @defer.inlineCallbacks - def _check_ldap_password(self, user_id, password): - """ Attempt to authenticate a user against an LDAP Server - and register an account if none exists. - - Returns: - True if authentication against LDAP was successful - """ - - if not ldap3 or not self.ldap_enabled: - defer.returnValue(False) - - localpart = UserID.from_string(user_id).localpart - - try: - server = ldap3.Server(self.ldap_uri) - logger.debug( - "Attempting LDAP connection with %s", - self.ldap_uri - ) - - if self.ldap_mode == LDAPMode.SIMPLE: - result, conn = self._ldap_simple_bind( - server=server, localpart=localpart, password=password - ) - logger.debug( - 'LDAP authentication method simple bind returned: %s (conn: %s)', - result, - conn - ) - if not result: - defer.returnValue(False) - elif self.ldap_mode == LDAPMode.SEARCH: - result, conn = self._ldap_authenticated_search( - server=server, localpart=localpart, password=password - ) - logger.debug( - 'LDAP auth method authenticated search returned: %s (conn: %s)', - result, - conn - ) - if not result: - defer.returnValue(False) - else: - raise RuntimeError( - 'Invalid LDAP mode specified: {mode}'.format( - mode=self.ldap_mode - ) - ) - - try: - logger.info( - "User authenticated against LDAP server: %s", - conn - ) - except NameError: - logger.warn("Authentication method yielded no LDAP connection, aborting!") - defer.returnValue(False) - - # check if user with user_id exists - if (yield self.check_user_exists(user_id)): - # exists, authentication complete - conn.unbind() - defer.returnValue(True) - - else: - # does not exist, fetch metadata for account creation from - # existing ldap connection - query = "({prop}={value})".format( - prop=self.ldap_attributes['uid'], - value=localpart - ) - - if self.ldap_mode == LDAPMode.SEARCH and self.ldap_filter: - query = "(&{filter}{user_filter})".format( - filter=query, - user_filter=self.ldap_filter - ) - logger.debug( - "ldap registration filter: %s", - query - ) - - conn.search( - search_base=self.ldap_base, - search_filter=query, - attributes=[ - self.ldap_attributes['name'], - self.ldap_attributes['mail'] - ] - ) - - if len(conn.response) == 1: - attrs = conn.response[0]['attributes'] - mail = attrs[self.ldap_attributes['mail']][0] - name = attrs[self.ldap_attributes['name']][0] - - # create account - registration_handler = self.hs.get_handlers().registration_handler - user_id, access_token = ( - yield registration_handler.register(localpart=localpart) - ) - - # TODO: bind email, set displayname with data from ldap directory - - logger.info( - "Registration based on LDAP data was successful: %d: %s (%s, %)", - user_id, - localpart, - name, - mail - ) - - defer.returnValue(True) - else: - if len(conn.response) == 0: - logger.warn("LDAP registration failed, no result.") - else: - logger.warn( - "LDAP registration failed, too many results (%s)", - len(conn.response) - ) - - defer.returnValue(False) - - defer.returnValue(False) - - except ldap3.core.exceptions.LDAPException as e: - logger.warn("Error during ldap authentication: %s", e) - defer.returnValue(False) - @defer.inlineCallbacks def issue_access_token(self, user_id, device_id=None): access_token = self.generate_access_token(user_id) @@ -911,3 +628,30 @@ class AuthHandler(BaseHandler): stored_hash.encode('utf-8')) == stored_hash else: return False + + +class _AccountHandler(object): + """A proxy object that gets passed to password auth providers so they + can register new users etc if necessary. + """ + def __init__(self, hs, check_user_exists): + self.hs = hs + + self._check_user_exists = check_user_exists + + def check_user_exists(self, user_id): + """Check if user exissts. + + Returns: + Deferred(bool) + """ + return self._check_user_exists(user_id) + + def register(self, localpart): + """Registers a new user with given localpart + + Returns: + Deferred: a 2-tuple of (user_id, access_token) + """ + reg = self.hs.get_handlers().registration_handler + return reg.register(localpart=localpart) diff --git a/synapse/util/ldap_auth_provider.py b/synapse/util/ldap_auth_provider.py new file mode 100644 index 0000000000..f852e9b037 --- /dev/null +++ b/synapse/util/ldap_auth_provider.py @@ -0,0 +1,368 @@ + +from twisted.internet import defer + +from synapse.config._base import ConfigError +from synapse.types import UserID + +import ldap3 +import ldap3.core.exceptions + +import logging + +try: + import ldap3 + import ldap3.core.exceptions +except ImportError: + ldap3 = None + pass + + +logger = logging.getLogger(__name__) + + +class LDAPMode(object): + SIMPLE = "simple", + SEARCH = "search", + + LIST = (SIMPLE, SEARCH) + + +class LdapAuthProvider(object): + __version__ = "0.1" + + def __init__(self, config, account_handler): + self.account_handler = account_handler + + if not ldap3: + raise RuntimeError( + 'Missing ldap3 library. This is required for LDAP Authentication.' + ) + + self.ldap_mode = config.mode + self.ldap_uri = config.uri + self.ldap_start_tls = config.start_tls + self.ldap_base = config.base + self.ldap_attributes = config.attributes + if self.ldap_mode == LDAPMode.SEARCH: + self.ldap_bind_dn = config.bind_dn + self.ldap_bind_password = config.bind_password + self.ldap_filter = config.filter + + @defer.inlineCallbacks + def check_password(self, user_id, password): + """ Attempt to authenticate a user against an LDAP Server + and register an account if none exists. + + Returns: + True if authentication against LDAP was successful + """ + localpart = UserID.from_string(user_id).localpart + + try: + server = ldap3.Server(self.ldap_uri) + logger.debug( + "Attempting LDAP connection with %s", + self.ldap_uri + ) + + if self.ldap_mode == LDAPMode.SIMPLE: + result, conn = self._ldap_simple_bind( + server=server, localpart=localpart, password=password + ) + logger.debug( + 'LDAP authentication method simple bind returned: %s (conn: %s)', + result, + conn + ) + if not result: + defer.returnValue(False) + elif self.ldap_mode == LDAPMode.SEARCH: + result, conn = self._ldap_authenticated_search( + server=server, localpart=localpart, password=password + ) + logger.debug( + 'LDAP auth method authenticated search returned: %s (conn: %s)', + result, + conn + ) + if not result: + defer.returnValue(False) + else: + raise RuntimeError( + 'Invalid LDAP mode specified: {mode}'.format( + mode=self.ldap_mode + ) + ) + + try: + logger.info( + "User authenticated against LDAP server: %s", + conn + ) + except NameError: + logger.warn( + "Authentication method yielded no LDAP connection, aborting!" + ) + defer.returnValue(False) + + # check if user with user_id exists + if (yield self.account_handler.check_user_exists(user_id)): + # exists, authentication complete + conn.unbind() + defer.returnValue(True) + + else: + # does not exist, fetch metadata for account creation from + # existing ldap connection + query = "({prop}={value})".format( + prop=self.ldap_attributes['uid'], + value=localpart + ) + + if self.ldap_mode == LDAPMode.SEARCH and self.ldap_filter: + query = "(&{filter}{user_filter})".format( + filter=query, + user_filter=self.ldap_filter + ) + logger.debug( + "ldap registration filter: %s", + query + ) + + conn.search( + search_base=self.ldap_base, + search_filter=query, + attributes=[ + self.ldap_attributes['name'], + self.ldap_attributes['mail'] + ] + ) + + if len(conn.response) == 1: + attrs = conn.response[0]['attributes'] + mail = attrs[self.ldap_attributes['mail']][0] + name = attrs[self.ldap_attributes['name']][0] + + # create account + user_id, access_token = ( + yield self.account_handler.register(localpart=localpart) + ) + + # TODO: bind email, set displayname with data from ldap directory + + logger.info( + "Registration based on LDAP data was successful: %d: %s (%s, %)", + user_id, + localpart, + name, + mail + ) + + defer.returnValue(True) + else: + if len(conn.response) == 0: + logger.warn("LDAP registration failed, no result.") + else: + logger.warn( + "LDAP registration failed, too many results (%s)", + len(conn.response) + ) + + defer.returnValue(False) + + defer.returnValue(False) + + except ldap3.core.exceptions.LDAPException as e: + logger.warn("Error during ldap authentication: %s", e) + defer.returnValue(False) + + @staticmethod + def parse_config(config): + class _LdapConfig(object): + pass + + ldap_config = _LdapConfig() + + ldap_config.enabled = config.get("enabled", False) + + ldap_config.mode = LDAPMode.SIMPLE + + # verify config sanity + _require_keys(config, [ + "uri", + "base", + "attributes", + ]) + + ldap_config.uri = config["uri"] + ldap_config.start_tls = config.get("start_tls", False) + ldap_config.base = config["base"] + ldap_config.attributes = config["attributes"] + + if "bind_dn" in config: + ldap_config.mode = LDAPMode.SEARCH + _require_keys(config, [ + "bind_dn", + "bind_password", + ]) + + ldap_config.bind_dn = config["bind_dn"] + ldap_config.bind_password = config["bind_password"] + ldap_config.filter = config.get("filter", None) + + # verify attribute lookup + _require_keys(config['attributes'], [ + "uid", + "name", + "mail", + ]) + + return ldap_config + + def _ldap_simple_bind(self, server, localpart, password): + """ Attempt a simple bind with the credentials + given by the user against the LDAP server. + + Returns True, LDAP3Connection + if the bind was successful + Returns False, None + if an error occured + """ + + try: + # bind with the the local users ldap credentials + bind_dn = "{prop}={value},{base}".format( + prop=self.ldap_attributes['uid'], + value=localpart, + base=self.ldap_base + ) + conn = ldap3.Connection(server, bind_dn, password) + logger.debug( + "Established LDAP connection in simple bind mode: %s", + conn + ) + + if self.ldap_start_tls: + conn.start_tls() + logger.debug( + "Upgraded LDAP connection in simple bind mode through StartTLS: %s", + conn + ) + + if conn.bind(): + # GOOD: bind okay + logger.debug("LDAP Bind successful in simple bind mode.") + return True, conn + + # BAD: bind failed + logger.info( + "Binding against LDAP failed for '%s' failed: %s", + localpart, conn.result['description'] + ) + conn.unbind() + return False, None + + except ldap3.core.exceptions.LDAPException as e: + logger.warn("Error during LDAP authentication: %s", e) + return False, None + + def _ldap_authenticated_search(self, server, localpart, password): + """ Attempt to login with the preconfigured bind_dn + and then continue searching and filtering within + the base_dn + + Returns (True, LDAP3Connection) + if a single matching DN within the base was found + that matched the filter expression, and with which + a successful bind was achieved + + The LDAP3Connection returned is the instance that was used to + verify the password not the one using the configured bind_dn. + Returns (False, None) + if an error occured + """ + + try: + conn = ldap3.Connection( + server, + self.ldap_bind_dn, + self.ldap_bind_password + ) + logger.debug( + "Established LDAP connection in search mode: %s", + conn + ) + + if self.ldap_start_tls: + conn.start_tls() + logger.debug( + "Upgraded LDAP connection in search mode through StartTLS: %s", + conn + ) + + if not conn.bind(): + logger.warn( + "Binding against LDAP with `bind_dn` failed: %s", + conn.result['description'] + ) + conn.unbind() + return False, None + + # construct search_filter like (uid=localpart) + query = "({prop}={value})".format( + prop=self.ldap_attributes['uid'], + value=localpart + ) + if self.ldap_filter: + # combine with the AND expression + query = "(&{query}{filter})".format( + query=query, + filter=self.ldap_filter + ) + logger.debug( + "LDAP search filter: %s", + query + ) + conn.search( + search_base=self.ldap_base, + search_filter=query + ) + + if len(conn.response) == 1: + # GOOD: found exactly one result + user_dn = conn.response[0]['dn'] + logger.debug('LDAP search found dn: %s', user_dn) + + # unbind and simple bind with user_dn to verify the password + # Note: do not use rebind(), for some reason it did not verify + # the password for me! + conn.unbind() + return self._ldap_simple_bind(server, localpart, password) + else: + # BAD: found 0 or > 1 results, abort! + if len(conn.response) == 0: + logger.info( + "LDAP search returned no results for '%s'", + localpart + ) + else: + logger.info( + "LDAP search returned too many (%s) results for '%s'", + len(conn.response), localpart + ) + conn.unbind() + return False, None + + except ldap3.core.exceptions.LDAPException as e: + logger.warn("Error during LDAP authentication: %s", e) + return False, None + + +def _require_keys(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) + ) + ) |