Thursday, 28 September 2017

Python Example: Viewing members of a group with ldap3

Although the ldap3 module for python is well documented I didn't find many good examples - so I decided to publish this one for others:


from ldap3 import Server, Connection, ALL, NTLM, SUBTREE
import re
# Global varsBindUser = 'domain\\username'BindPassword = '<yourpassword>'SearchGroup = 'Domain Admins'ADServer = 'dc01.domain.tld'SearchBase = 'DC=domain,DC=tld'

def getUsersInGroup(username, password, group):
    server = Server(ADServer)
    conn = Connection(server, user=username, password=password, authentication=NTLM, auto_bind=True)
    conn.bind()

    conn.search(search_base=SearchBase,
                search_filter='(&(objectClass=GROUP)(cn=' + group +'))', search_scope=SUBTREE,
                attributes=['member'], size_limit=0)
    result = conn.entries

    conn.unbind()
    return result

def getUserDescription(username, password, userdn):
    server = Server(ADServer)
    conn = Connection(server, user=username, password=password, authentication=NTLM, auto_bind=True)
    conn.bind()

    conn.search(search_base=SearchBase,
                search_filter='(&(objectClass=person)(cn=' + userdn + '))', search_scope=SUBTREE,
                attributes=['description'], size_limit=0)
    result = conn.entries

    conn.unbind()
    return result

print('Querying group: ' + SearchGroup)

regex_short = r" +CN=([a-zA-Z ]+)" # extracts username onlyregex_long = r" +(?:[O|C|D][U|N|C]=[a-zA-Z ]+,?)+" # extracts complete DNmatches = re.findall(regex_short, str(getUsersInGroup(username=BindUser, password=BindPassword, group=SearchGroup)))

print('Found ' + str(len(matches)) + ' users associated with this group...')

for match in matches:
    print('Getting description for account: ' + match + '...')
    match_description = str(getUserDescription(username=BindUser, password=BindPassword, userdn=match))

    # check if user has a valid description    regex_desc = r"description:[ A-Za-z]+"    if re.search(regex_desc, match_description):
        print(re.search(regex_desc, match_description)

0 comments:

Post a comment