如何使用LDAP和PHP从Active Directory安全组中检索用户信息

Question

正如您在下面看到的,当我对安全组进行LDAP搜索时,我没有收到任何用户信息.我想用来$_SERVER[remote_user]检查用户是否是该组的成员.我还想检索该用户的信息并用它更新sql数据库.这可能吗？

$dn = "CN=Intra,OU=Common Security Groups,DC=mydomain,DC=local";
$filter = "(member=*)";

$ad = ldap_connect("IP") or die("Couldn't connect to AD!");
ldap_set_option($ad, LDAP_OPT_PROTOCOL_VERSION, 3);
$bd = ldap_bind( $ad, "username@mydomain.local", "password") or die("Can't bind to server.");
$sr = ldap_search($ad,$dn,$filter);
$entries = ldap_get_entries($ad, $sr);

print_r($entries);

返回此:

Array
(
    [count] => 1
    [0] => Array
        (
            [objectclass] => Array
                (
                    [count] => 2
                    [0] => top
                    [1] => group
                )

            [0] => objectclass
            [cn] => Array
                (
                    [count] => 1
                    [0] => Intra
                )

            [1] => cn
            [description] => Array
                (
                    [count] => 1
                    [0] => Group for (LDAP) INTRANET server access
                )

            [2] => description
            [member] => Array
                (
                    [count] => 4
                    [0] => CN=Fname1 Lname1,OU=Mail enabled users,OU=Aberdeen,DC=mydomain,DC=local
                    [1] => CN=Fname2 Lname2,OU=Mail enabled users,OU=Forres,DC=mydomain,DC=local
                    [2] => CN=Fname3 Lname3,OU=Houston,DC=mydomain,DC=local
                    [3] => CN=Fname4 Lname4,OU=Mail enabled users,OU=Bergen,DC=mydomain,DC=local
                )

            [3] => member
            [distinguishedname] => Array
                (
                    [count] => 1
                    [0] => CN=Intra,OU=Common Security Groups,DC=mydomain,DC=local
                )

            [4] => distinguishedname
            [instancetype] => Array
                (
                    [count] => 1
                    [0] => 4
                )

            [5] => instancetype
            [whencreated] => Array
                (
                    [count] => 1
                    [0] => 20100711172407.0Z
                )

            [6] => whencreated
            [whenchanged] => Array
                (
                    [count] => 1
                    [0] => 20100712063949.0Z
                )

            [7] => whenchanged
            [usncreated] => Array
                (
                    [count] => 1
                    [0] => 17491499
                )

            [8] => usncreated
            [usnchanged] => Array
                (
                    [count] => 1
                    [0] => 17498823
                )

            [9] => usnchanged
            [name] => Array
                (
                    [count] => 1
                    [0] => Intra
                )

            [10] => name
            [objectguid] => Array
                (
                    [count] => 1
                    [0] =>
                )

            [11] => objectguid
            [objectsid] => Array
                (
                    [count] => 1
                    [0] =>
                )

            [12] => objectsid
            [samaccountname] => Array
                (
                    [count] => 1
                    [0] => Intra
                )

            [13] => samaccountname
            [samaccounttype] => Array
                (
                    [count] => 1
                    [0] => 268435456
                )

            [14] => samaccounttype
            [grouptype] => Array
                (
                    [count] => 1
                    [0] => -2147483646
                )

            [15] => grouptype
            [objectcategory] => Array
                (
                    [count] => 1
                    [0] => CN=Group,CN=Schema,CN=Configuration,DC=mydomain,DC=local
                )

            [16] => objectcategory
            [count] => 17
            [dn] => CN=Intra,OU=Common Security Groups,DC=mydomain,DC=local
        )

)

当我使用普通DN时,一切正常:

$dn = "OU=Mail enabled users,OU=Bergen,DC=mydomain,DC=local";

但AD专家告诉我这是一个很大的NO-NO,我应该使用安全组:

Answer 1

像这样查询 AD：

$dn       = "DC=mydomain,DC=local";
$group_DN = "CN=Intra,OU=Common Security Groups,DC=mydomain,DC=local";
$filter   = "(&(objectCategory=user)(memberOf=$group_DN))";
// ...
$sr       = ldap_search($ad, $dn, $filter);

请参阅有关 LDAP 搜索过滤器语法的 MSDN 文章，了解有关更复杂过滤器的信息。

请务必注意该页面下方的特殊字符部分。正确的解$group_DN在过滤字符串中使用之前必须经过转义机制！

始终尝试构建尽可能具体的过滤器。让 LDAP 服务器整理出您不需要的记录会更有效，而不是通过网络传输超出您需要的记录，然后在客户端上丢弃其中的一半记录。