Question

我使用了此示例并成功连接到LDAP服务器 - http://www.oracle-base.com/articles/9i/ldap-from-plsql-9i.php。

SET SERVEROUTPUT ON SIZE 1000000
DECLARE
  -- Adjust as necessary.
  l_ldap_host    VARCHAR2(256) := 'server01.tshcomputing.com';
  l_ldap_port    VARCHAR2(256) := '389';
  l_ldap_user    VARCHAR2(256) := 'cn=orcladmin';
  l_ldap_passwd  VARCHAR2(256) := 'password';
  l_ldap_base    VARCHAR2(256) := 'cn=Users,dc=tshcomputing,dc=com';

  l_retval       PLS_INTEGER; 
  l_session      DBMS_LDAP.session;
  l_attrs        DBMS_LDAP.string_collection;
  l_message      DBMS_LDAP.message;
  l_entry        DBMS_LDAP.message;
  l_attr_name    VARCHAR2(256);
  l_ber_element  DBMS_LDAP.ber_element;
  l_vals         DBMS_LDAP.string_collection;

BEGIN
  -- Choose to raise exceptions.
  DBMS_LDAP.USE_EXCEPTION := TRUE;

  -- Connect to the LDAP server.
  l_session := DBMS_LDAP.init(hostname => l_ldap_host,
                              portnum  => l_ldap_port);

  l_retval := DBMS_LDAP.simple_bind_s(ld     => l_session,
                                      dn     => l_ldap_user,
                                      passwd => l_ldap_passwd);

  -- Get all attributes
  l_attrs(1) := '*'; -- retrieve all attributes 
  l_retval := DBMS_LDAP.search_s(ld       => l_session, 
                                 base     => l_ldap_base, 
                                 scope    => DBMS_LDAP.SCOPE_SUBTREE,
                                 filter   => 'objectclass=*',
                                 attrs    => l_attrs,
                                 attronly => 0,
                                 res      => l_message);

  IF DBMS_LDAP.count_entries(ld => l_session, msg => l_message) > 0 THEN
    -- Get all the entries returned by our search.
    l_entry := DBMS_LDAP.first_entry(ld  => l_session,
                                     msg => l_message);

    << entry_loop >>
    WHILE l_entry IS NOT NULL LOOP
      -- Get all the attributes for this entry.
      DBMS_OUTPUT.PUT_LINE('---------------------------------------');
      l_attr_name := DBMS_LDAP.first_attribute(ld        => l_session,
                                               ldapentry => l_entry,
                                               ber_elem  => l_ber_element);
      << attributes_loop >>
      WHILE l_attr_name IS NOT NULL LOOP
        -- Get all the values for this attribute.
        l_vals := DBMS_LDAP.get_values (ld        => l_session,
                                        ldapentry => l_entry,
                                        attr      => l_attr_name);
        << values_loop >>
        FOR i IN l_vals.FIRST .. l_vals.LAST LOOP
          DBMS_OUTPUT.PUT_LINE('ATTIBUTE_NAME: ' || l_attr_name || ' = ' || SUBSTR(l_vals(i),1,200));
        END LOOP values_loop;
        l_attr_name := DBMS_LDAP.next_attribute(ld        => l_session,
                                                ldapentry => l_entry,
                                                ber_elem  => l_ber_element);
      END LOOP attibutes_loop;
      l_entry := DBMS_LDAP.next_entry(ld  => l_session,
                                      msg => l_entry);
    END LOOP entry_loop;
  END IF;

  -- Disconnect from the LDAP server.
  l_retval := DBMS_LDAP.unbind_s(ld => l_session);
  DBMS_OUTPUT.PUT_LINE('L_RETVAL: ' || l_retval);
END;
/

我得到了这个结果：

Results 实际上，用户有3个组，但是一个组Primary并存储在primaryGroupID中。我试图对组进行查询，但我找不到像ID这样的属性。如何通过memberOf获取群组信息（例如primaryGroupID属性的值）？

Answer 1

尽管可能很烦人，但这必然是一个由两部分组成的过程。 memberOf（和LDAP多值属性）存储除以外的所有组成员身份，如您所发现的那样以完全不同的方式存储。关键是＆＃34; primaryGroupToken＆＃34;组对象的属性，与用户的primaryGroupID相关。

我正在反过来，所以作为对自己的服务，制作了我自己的函数，它将给出primaryGroup ID值＆＃34;令牌＆＃34;：

--Special from of group membership not appearing in the memberof attribute. --Function accepts (flexibly) a SID or a group name and return the token that --would be stored in the attribute "primaryGroupID" of a user object. FUNCTION get_primaryGroupToken(p_sid_samid IN VARCHAR2) RETURN VARCHAR2 IS l_retval PLS_INTEGER; l_attrs dbms_ldap.string_collection; l_message dbms_ldap.message; l_entry dbms_ldap.message; l_attr_name VARCHAR2(256); l_ber_element dbms_ldap.ber_element; l_vals dbms_ldap.string_collection; l_primaryGroupToken VARCHAR2(256) := NULL; l_filter VARCHAR2(256); BEGIN IF SUBSTR( p_sid_samid, 2, 1 ) = '-' THEN dbms_output.put_line('group spec Is sid'); l_filter := '(objectSid=' || p_sid_samid || ')'; ELSE dbms_output.put_line('group spec Is samid'); -- You could probably also use CN here instead of sAMAccountName l_filter := '(&(sAMAccountName=' || p_sid_samid || ')(objectClass=group))'; END IF; l_retval := get_ldap_session(); l_attrs(1) := 'primaryGroupToken'; l_retval := DBMS_LDAP.search_s(ld => g_session, base => g_ldap_auth_base, scope => DBMS_LDAP.SCOPE_SUBTREE, filter => l_filter, attrs => l_attrs, attronly => 0, res => l_message); IF DBMS_LDAP.count_entries(ld => g_session, msg => l_message) > 0 THEN --Get all the entries returned by our search. l_entry := DBMS_LDAP.first_entry(ld => g_session,msg => l_message); <<entry_loop>> WHILE l_entry IS NOT NULL LOOP -- Get all the attributes for this entry. l_attr_name := DBMS_LDAP.first_attribute(ld => g_session,ldapentry => l_entry, ber_elem => l_ber_element); IF lower(l_attr_name) <> 'primarygrouptoken' THEN DBMS_OUTPUT.PUT_LINE('ATTIBUTE_NAME unexpected : ' || l_attr_name ); ELSE l_vals := DBMS_LDAP.get_values (ld => g_session, ldapentry => l_entry, attr => l_attr_name); END IF; << values_loop >> FOR i IN l_vals.FIRST .. l_vals.LAST LOOP l_primaryGroupToken := l_vals(i); END LOOP values_loop; IF l_primaryGroupToken IS NULL THEN l_attr_name := DBMS_LDAP.next_attribute(ld => g_session, ldapentry => l_entry, ber_elem => l_ber_element); l_entry := DBMS_LDAP.next_entry(ld => g_session,msg => l_entry); ELSE EXIT; END IF; END LOOP entry_loop; END IF; -- Disconnect from the LDAP server. l_retval := DBMS_LDAP.unbind_s(ld => g_session); RETURN l_primaryGroupToken; END get_primaryGroupToken;

请注意，此功能位于包中，并且＆＃34; g _＆＃34;变量是包全局变量。当然，只消除开发dbms_output调用等。

然后我只进行了两次过滤搜索，一次在primaryGroupID上，一次在memberOf上，以获取该组的所有成员。

在您的情况下，只是反过来，拥有自己的函数，首先评估所有memberOf值，然后单独处理primaryGroupToken与LDAP搜索具有该primaryGroupToken的组。

Answer 2

我认为有一个属性在群组中持有该值，但我没有看到它。

第二个想法，我认为它基于SID的RID组件。您必须解析SID以获取RID（相对ID）组件。

如何使用Oracle dbms_ldap包获取LDAP组名？

2 个答案: