import ldap
import os
import re

def ad_search():
    ldap_username = "使用者"
    password = "密碼"
    conn = ldap.initialize('ldap://伺服器位址')
    conn.protocol_version = 3
    conn.set_option(ldap.OPT_REFERRALS, 0)
    conn.simple_bind_s(ldap_username, password)
    basedn = "網域dn"                                                                                          # DC=456,DC=abc,DC=com,DC=tw
    temp = conn.search_s(basedn,ldap.SCOPE_SUBTREE, "搜尋條件")        # 例如我要找我建的群組，搜尋條件就下 "(objectClass=organizationalUnit)"
    for i in temp:
        if i[0]:
            t = re.search(r'(OU=\w+)', i[0])
            yield t.group(0)