39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
import ldap3
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import logging
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from ldap3.core.exceptions import LDAPBindError
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logger = logging.getLogger(__name__)
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def authentication(username, password):
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# no empty passwords
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if password is None or password.strip() == "":
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return None
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# username format
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new_username = "uid={username},ou=user,dc=fet,dc=htu,dc=tuwien,dc=ac,dc=at"
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userdn = new_username.format(username=username)
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server_uri = "ldap://juri.fet.htu.tuwien.ac.at"
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server = ldap3.Server(server_uri, port=389, use_ssl=True)
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has_user = False
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try:
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conn = ldap3.Connection(server, user=userdn, password=password, auto_bind=True)
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conn.search("dc=fet,dc=htu,dc=tuwien,dc=ac,dc=at", "(objectclass=person)")
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for user in sorted(conn.entries):
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if ("DN: uid=" + str(username.lower())) in str(user):
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has_user = True
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except LDAPBindError as e:
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logger.info("Username does not exist. Error: {}".format(e))
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username = None
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except Exception as e:
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logger.info("Connection to server lost. Error: {}".format(e))
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username = None
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if not has_user:
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username = None
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return username
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