65 lines
2.6 KiB
Python
65 lines
2.6 KiB
Python
import os
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import ldap
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import subprocess
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from data.users import LDAP_CERT_FILENAME
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from data.users.externalldap import LDAPConnection, LDAPUsers
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from util.config.validators import BaseValidator, ConfigValidationException
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from _init import CONF_DIR, config_provider
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class LDAPValidator(BaseValidator):
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name = "ldap"
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@classmethod
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def validate(cls, config, user, user_password, app):
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""" Validates the LDAP connection. """
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if config.get('AUTHENTICATION_TYPE', 'Database') != 'LDAP':
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return
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# If there is a custom LDAP certificate, then reinstall the certificates for the container.
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if config_provider.volume_file_exists(LDAP_CERT_FILENAME):
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subprocess.check_call([os.path.join(CONF_DIR, 'init/certs_install.sh')])
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# Note: raises ldap.INVALID_CREDENTIALS on failure
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admin_dn = config.get('LDAP_ADMIN_DN')
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admin_passwd = config.get('LDAP_ADMIN_PASSWD')
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if not admin_dn:
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raise ConfigValidationException('Missing Admin DN for LDAP configuration')
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if not admin_passwd:
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raise ConfigValidationException('Missing Admin Password for LDAP configuration')
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ldap_uri = config.get('LDAP_URI', 'ldap://localhost')
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if not ldap_uri.startswith('ldap://') and not ldap_uri.startswith('ldaps://'):
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raise ConfigValidationException('LDAP URI must start with ldap:// or ldaps://')
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allow_tls_fallback = config.get('LDAP_ALLOW_INSECURE_FALLBACK', False)
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try:
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with LDAPConnection(ldap_uri, admin_dn, admin_passwd, allow_tls_fallback):
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pass
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except ldap.LDAPError as ex:
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values = ex.args[0] if ex.args else {}
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if not isinstance(values, dict):
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raise ConfigValidationException(str(ex.args))
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raise ConfigValidationException(values.get('desc', 'Unknown error'))
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# Verify that the superuser exists. If not, raise an exception.
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base_dn = config.get('LDAP_BASE_DN')
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user_rdn = config.get('LDAP_USER_RDN', [])
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uid_attr = config.get('LDAP_UID_ATTR', 'uid')
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email_attr = config.get('LDAP_EMAIL_ATTR', 'mail')
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requires_email = config.get('FEATURE_MAILING', True)
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users = LDAPUsers(ldap_uri, base_dn, admin_dn, admin_passwd, user_rdn, uid_attr, email_attr,
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allow_tls_fallback, requires_email=requires_email)
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username = user.username
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(result, err_msg) = users.verify_credentials(username, user_password)
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if not result:
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msg = ('Verification of superuser %s failed: %s. \n\nThe user either does not exist ' +
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'in the remote authentication system ' +
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'OR LDAP auth is misconfigured.') % (username, err_msg)
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raise ConfigValidationException(msg)
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