发现用户无法更改ldap的密码值

Question

我试图找出在广告中，用户是否允许更改密码。我已经使用SearchResponse来查找该用户是否存在。

Answer 1

SearchResponse响应=（SearchResponse）Connection.SendRequest（request）；DirectoryAttribute属性=response.entrients[0].attributes[“NTSecurityDescriptor”]；

            if (attribute != null)
            {
                const string PASSWORD_GUID = "{ab721a53-1e2f-11d0-9819-00aa0040529b}";
                const int ADS_ACETYPE_ACCESS_DENIED_OBJECT = 6;
                bool fEveryone = false;
                bool fSelf = false;

                ActiveDs.ADsSecurityUtility secUtility = new ActiveDs.ADsSecurityUtility();
                ActiveDs.IADsSecurityDescriptor sd = (IADsSecurityDescriptor)secUtility.ConvertSecurityDescriptor((byte[])attribute[0], (int)ADS_SD_FORMAT_ENUM.ADS_SD_FORMAT_RAW, (int)ADS_SD_FORMAT_ENUM.ADS_SD_FORMAT_IID);
                ActiveDs.IADsAccessControlList acl = (ActiveDs.IADsAccessControlList)sd.DiscretionaryAcl;

                foreach (ActiveDs.IADsAccessControlEntry ace in acl)
                {
                    if ((ace.ObjectType != null) && (ace.ObjectType.ToUpper() == PASSWORD_GUID.ToUpper()))
                    {
                        if ((ace.Trustee == "Everyone") && (ace.AceType == ADS_ACETYPE_ACCESS_DENIED_OBJECT))
                        {
                            fEveryone = true;
                        }
                        if ((ace.Trustee == @"NT AUTHORITY\SELF") && (ace.AceType == ADS_ACETYPE_ACCESS_DENIED_OBJECT))
                        {
                            fSelf = true;
                        }

                        break;
                    }
                }

                if (fEveryone || fSelf)
                {
                    return Global.RequestContants.CANT_CHANGE_PASSWORD;
                }
                else
                {
                    return string.Empty;
                }
            }