C#通过Windows凭据获取域Active Directory信息

时间:2014-11-11 18:32:36

标签: c# visual-studio-2013 active-directory windows-authentication

我一直在网上搜索Active Directory和Windows身份验证。我成功从域AD获取用户信息但我必须传递用户名和密码。所以,让你进入我的背景:

我有一个我设置用户的域名。每个用户将使用其给定的凭据连接到域。因此,他们将登录到他们的PC,当他们打开一个VS 2013 C#应用程序时,它将检查用户是否存在于域上,如果用户那么返回AD信息,如果用户不存在则显示登录页面进入证书。因为我可以让外部用户连接到我的域等...

现在我无法使用用户的Windows身份验证访问AD,它在Search.FindOne();

上给出了一个未知错误
public static void GetActiveDirectoryUser(string UserName) 
    {
        try
        {
            // Create LDAP connetion object
            DirectoryEntry ldapConnection = CreateDirectoryEntry();

            // Create Search object which operates on LDAP connection object
            // and set search object to only find the user specified
            DirectorySearcher search = new DirectorySearcher(ldapConnection);

            // Create results objects from search object
            SearchResult result = search.FindOne();

            if (result != null)
            {
                // User exists, cycle through LDAP fields (cn, telephonenumber, etc.)
                ResultPropertyCollection fields = result.Properties;

                foreach (string ldapField in fields.PropertyNames)
                {
                    // Cycle through objects in each field e.g group membership
                    foreach (Object objCollection in fields[ldapField])
                    {
                        Console.WriteLine(String.Format("{0, -20} : {1}", ldapField, objCollection.ToString()));
                    }
                }
            }
        }
        catch (Exception e)
        {
            Console.WriteLine("Exception Caught:\n\n" + e.ToString());
        }
    }

    static DirectoryEntry CreateDirectoryEntry()
    {
        string pathDomainName = "WinNT://MyDomain/Fred,Person";

        DirectoryEntry ldapConnection = new DirectoryEntry(pathDomainName);

        return ldapConnection;
    }

这是我遇到的错误

System.Runtime.InteropServices.COMException (0x80005000): Unknown error (0x80005000)
at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()

但是当我使用这个字符串时

string pathDomainName = "LDAP://MyDomain";
DirectoryEntry directoryEntry = new DirectoryEntry(pathDomainName, "Fred", "f12345!");

它可以工作,它为用户返回了我的所有AD,但是我已经使用Windows身份验证登录了,为什么我会再次传递凭据?我只需要知道,如果用户存在于域

由于

1 个答案:

答案 0 :(得分:2)

如果您使用的是.NET 3.5及更高版本,则应查看System.DirectoryServices.AccountManagement(S.DS.AM)命名空间。在这里阅读所有相关内容:

基本上,您可以定义域上下文并轻松在AD中查找用户和/或组:

// set up domain context
using (PrincipalContext ctx = new PrincipalContext(ContextType.Domain))
{
    // find a user
    UserPrincipal user = UserPrincipal.FindByIdentity(ctx, "SomeUserName");

    if(user != null)
    {
       // do something here....     
    }

    // or alternatively: get the currently logged in user
    UserPrincipal current = UserPrincipal.Current;

    .....
}

新的S.DS.AM让您可以轻松地与AD中的用户和群组一起玩!