ArchiveBox/archivebox/pkgs/abx-plugin-ldap-auth/abx_plugin_ldap_auth/config.py

123 lines
4.5 KiB
Python

__package__ = 'abx_plugin_ldap_auth'
import sys
from typing import Dict, List, Optional
from pydantic import Field, computed_field
from abx_spec_config.base_configset import BaseConfigSet
LDAP_LIB = None
LDAP_SEARCH = None
def get_ldap_lib(extra_paths=()):
global LDAP_LIB, LDAP_SEARCH
if LDAP_LIB and LDAP_SEARCH:
return LDAP_LIB, LDAP_SEARCH
try:
for path in extra_paths:
if path not in sys.path:
sys.path.append(path)
import ldap
from django_auth_ldap.config import LDAPSearch
LDAP_LIB, LDAP_SEARCH = ldap, LDAPSearch
except ImportError:
pass
return LDAP_LIB, LDAP_SEARCH
###################### Config ##########################
class LdapConfig(BaseConfigSet):
"""
LDAP Config gets imported by core/settings.py very early during startup.
It needs to be in a separate file from apps.py so that it can be imported
during settings.py initialization before the apps are loaded.
"""
LDAP_ENABLED: bool = Field(default=False, alias='LDAP')
LDAP_SERVER_URI: str = Field(default=None)
LDAP_BIND_DN: str = Field(default=None)
LDAP_BIND_PASSWORD: str = Field(default=None)
LDAP_USER_BASE: str = Field(default=None)
LDAP_USER_FILTER: str = Field(default=None)
LDAP_CREATE_SUPERUSER: bool = Field(default=False)
LDAP_USERNAME_ATTR: str = Field(default='username')
LDAP_FIRSTNAME_ATTR: str = Field(default='first_name')
LDAP_LASTNAME_ATTR: str = Field(default='last_name')
LDAP_EMAIL_ATTR: str = Field(default='email')
def validate(self):
if self.LDAP_ENABLED:
LDAP_LIB, _LDAPSearch = get_ldap_lib()
# Check that LDAP libraries are installed
if LDAP_LIB is None:
sys.stderr.write('[X] Error: LDAP Authentication is enabled but LDAP libraries are not installed. You may need to run: pip install archivebox[ldap]\n')
# dont hard exit here. in case the user is just running "archivebox version" or "archivebox help", we still want those to work despite broken ldap
# sys.exit(1)
self.update_in_place(LDAP_ENABLED=False)
# Check that all required LDAP config options are set
if self.LDAP_CONFIG_IS_SET:
missing_config_options = [
key for key, value in self.model_dump().items()
if value is None and key != 'LDAP_ENABLED'
]
sys.stderr.write('[X] Error: LDAP_* config options must all be set if LDAP_ENABLED=True\n')
sys.stderr.write(f' Missing: {", ".join(missing_config_options)}\n')
self.update_in_place(LDAP_ENABLED=False)
return self
@computed_field
@property
def LDAP_CONFIG_IS_SET(self) -> bool:
"""Check that all required LDAP config options are set"""
if self.LDAP_ENABLED:
LDAP_LIB, _LDAPSearch = get_ldap_lib()
return bool(LDAP_LIB) and self.LDAP_ENABLED and bool(
self.LDAP_SERVER_URI
and self.LDAP_BIND_DN
and self.LDAP_BIND_PASSWORD
and self.LDAP_USER_BASE
and self.LDAP_USER_FILTER
)
return False
@computed_field
@property
def LDAP_USER_ATTR_MAP(self) -> Dict[str, str]:
return {
'username': self.LDAP_USERNAME_ATTR,
'first_name': self.LDAP_FIRSTNAME_ATTR,
'last_name': self.LDAP_LASTNAME_ATTR,
'email': self.LDAP_EMAIL_ATTR,
}
@computed_field
@property
def AUTHENTICATION_BACKENDS(self) -> List[str]:
if self.LDAP_ENABLED:
return [
'django.contrib.auth.backends.ModelBackend',
'django_auth_ldap.backend.LDAPBackend',
]
return []
@computed_field
@property
def AUTH_LDAP_USER_SEARCH(self) -> Optional[object]:
if self.LDAP_ENABLED:
LDAP_LIB, LDAPSearch = get_ldap_lib()
return self.LDAP_USER_FILTER and LDAPSearch(
self.LDAP_USER_BASE,
LDAP_LIB.SCOPE_SUBTREE, # type: ignore
'(&(' + self.LDAP_USERNAME_ATTR + '=%(user)s)' + self.LDAP_USER_FILTER + ')',
)
return None
LDAP_CONFIG = LdapConfig()