Windows 网域验证

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Xml.Linq;
using System.DirectoryServices;
using System.Configuration;

namespace ADCheck
{
    /// <summary>
    /// Service1 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
    // [System.Web.Script.Services.ScriptService]
    public class Service1 : System.Web.Services.WebService
    {
        /// <summary>
        /// 返回域的数组
        /// </summary>
        /// <returns>null</returns>
        [WebMethod]
        public string[] ImportDomain()
        {
            string[] ADName = null;
            ArrayList ListView = new ArrayList();
            DirectoryEntry MainGroup = new DirectoryEntry("WinNT:");
            foreach (DirectoryEntry domain in MainGroup.Children)
            {
                if (domain.Name != "WORKGROUP")
                {
                    ListView.Add(domain.Name);//此代码获取局域网内的所有机器名
                }
            }
            ADName = (string[])ListView.ToArray(typeof(string));
            return ADName;
        }


        /// <summary>
        /// 域验证方法
        /// </summary>
        /// <param name="Domain">域 tripodwx tripoddc之类</param>
        /// <param name="UserName">用户名</param>
        /// <param name="PassWord">密码</param>
        /// <returns>false/ture</returns>
        [WebMethod]
        public bool Login(string Domain,string UserName,string PassWord)
        {
             string Msg;
            try
            {
                Domain = "LDAP://" + Domain;
                DirectoryEntry entry = new DirectoryEntry(Domain,UserName,PassWord);
                DirectorySearcher search = new DirectorySearcher(entry);
                SearchResult result = search.FindOne();
                if (result == null)
                {
                    return false;//错误的用户名或密码
                }
                else
                {
                    return true;//登入成功
                }
            }
            catch (Exception ex)
            {
                return false;//错误的用户名或密码
            }
        }
    }
}