我正在尝试对 AD LDS 进行 ldap 查询,以使用户按 cn 属性排序。排序规则不应该是默认的英文,而是应该按照瑞典语进行排序。我正在使用.Net 中的 System.DirectoryServices.Protocols API 执行此操作。
为了重现,我安装了一个监听端口 389 的 AD LDS 实例,并安装了用户对象类。
使用以下代码(base 复制自Performing a Simple Search)。订购规则取自这里。
public class LdapSorter
{
public void SearchUsersSorted()
{
string hostOrDomainName = "localhost";
string targetOu = "cn=Test";
// create a search filter to find all objects
string ldapSearchFilter = "(objectClass=user)";
// establish a connection to the directory
LdapConnection connection = new LdapConnection(hostOrDomainName);
connection.SessionOptions.ProtocolVersion = 3;
Console.WriteLine("\r\nPerforming a simple search ...");
try
{
SearchRequest searchRequest = new SearchRequest
(targetOu,
ldapSearchFilter,
SearchScope.OneLevel,
null);
searchRequest.Controls.Add(new SortRequestControl("cn", "1.2.840.113556.1.4.1594", false));
//searchRequest.Controls.Add(new SortRequestControl("cn", false));
//searchRequest.Controls.Add(new SortRequestControl("cn", true));
// cast the returned directory response as a SearchResponse object
SearchResponse searchResponse =
(SearchResponse)connection.SendRequest(searchRequest);
Console.WriteLine("\r\nSearch Response Entries:{0}",
searchResponse.Entries.Count);
// enumerate the entries in the search response
foreach (SearchResultEntry entry in searchResponse.Entries)
{
Console.WriteLine("{0}:{1}",
searchResponse.Entries.IndexOf(entry),
entry.DistinguishedName);
}
}
catch (DirectoryOperationException e)
{
Console.WriteLine("\nUnexpected exception occured:\n\t{0}\n{1}",
e, e.Response.ErrorMessage);
var control = e.Response.Controls.First(c => c is SortResponseControl) as SortResponseControl;
if (control != null)
{
Console.WriteLine("\nControl result: " + control.Result);
}
}
}
}
这是输出:
Performing a simple search ...
Unexpected exception occured:
System.DirectoryServices.Protocols.DirectoryOperationException: The server does not support the control. The control is critical.
at System.DirectoryServices.Protocols.LdapConnection.ConstructResponse(Int32 messageId, LdapOperation operation, ResultAll resultType, TimeSpan requestTimeOut, Boolean exceptionOnTimeOut)
at System.DirectoryServices.Protocols.LdapConnection.SendRequest(DirectoryRequest request, TimeSpan requestTimeout)
at System.DirectoryServices.Protocols.LdapConnection.SendRequest(DirectoryRequest request)
at Sort.LdapSorter.SearchUsersSorted() in C:\Source\slask\DotNetSlask\Sort\LdapSorter.cs:line 41
00000057: LdapErr: DSID-0C090A3D, comment: Error processing control, data 0, v3839
Control result: InappropriateMatching
如果使用被注释掉的两个排序请求控件之一,那么它可以工作,但使用英文排序顺序。