43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
from typing import Union, List
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import ldap
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from zope import component
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from zope.interface import implementer
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from .UWLDAPRecord import UWLDAPRecord
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from .utils import dn_to_uid, bytes_to_strings
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from ceo_common.interfaces import IUWLDAPService, IConfig
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@implementer(IUWLDAPService)
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class UWLDAPService:
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def __init__(self):
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cfg = component.getUtility(IConfig)
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self.uwldap_server_url = cfg.get('uwldap_server_url')
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self.uwldap_base = cfg.get('uwldap_base')
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def get_user(self, username: str) -> Union[UWLDAPRecord, None]:
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conn = ldap.initialize(self.uwldap_server_url)
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results = conn.search_s(self.uwldap_base, ldap.SCOPE_SUBTREE, f'uid={username}')
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if not results:
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return None
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_, data = results[0] # discard the dn
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return UWLDAPRecord.deserialize_from_ldap(data)
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def get_programs_for_users(self, usernames: List[str]) -> List[Union[str, None]]:
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filter_str = '(|' + ''.join([f'(uid={uid})' for uid in usernames]) + ')'
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programs = [None] * len(usernames)
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user_indices = {uid: i for i, uid in enumerate(usernames)}
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conn = ldap.initialize(self.uwldap_server_url)
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records = conn.search_s(
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self.uwldap_base, ldap.SCOPE_SUBTREE, filter_str, attrlist=['ou'])
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for dn, data in records:
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uid = dn_to_uid(dn)
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idx = user_indices[uid]
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data = bytes_to_strings(data)
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program = data.get('ou', [None])[0]
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if program:
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programs[idx] = program
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return programs
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