c# - 如何从 Active Directory 检索 SAMAccountName

Question

我实现了一个返回 Active Directory 用户列表的方法，我想像这样检索 SAMAccountName Domain\Administrator。

这是我使用的方法:

public Collection<software_user> GetUsersFromAD(String adConnectionString)
{
    var users = new Collection<software_user>();

    using (var directoryEntry = new DirectoryEntry(adConnectionString))
    {
        var directorySearcher = new DirectorySearcher(directoryEntry);
        directorySearcher.Filter = "(&(objectClass=user))";
        var propertiesToLoad = new[] 
        { 
           "SAMAccountName", 
           "displayName", 
           "givenName", 
           "sn", 
           "mail", 
           "userAccountControl", 
           "objectSid" 
        };
        directorySearcher.PropertiesToLoad.AddRange(propertiesToLoad);

        foreach (SearchResult searchEntry in directorySearcher.FindAll())
        {
            var userEntry = searchEntry.GetDirectoryEntry();
            var ldapUser = new software_user();
            ldapUser.User_name = NullHandler.GetString(userEntry.Properties["displayName"].Value);

            if (string.IsNullOrEmpty(ldapUser.User_name))
               continue;
            ldapUser.User_name = NullHandler.GetString(userEntry.Properties["SAMAccountName"].Value);
            ldapUser.email = NullHandler.GetString(userEntry.Properties["mail"].Value);
            ldapUser.user_shortname = NullHandler.GetString(userEntry.Properties["givenName"].Value);
            var userAccountControl = (int)userEntry.Properties["userAccountControl"].Value;
            //ldapUser.IsActive = (userAccountControl & UF_ACCOUNTDISABLE) != UF_ACCOUNTDISABLE;
            var sid = new SecurityIdentifier((byte[])userEntry.Properties["objectSid"][0], 0).Value;
            //ldapUser.SId = sid;
            users.Add(ldapUser);
         }
    }
    return users;
}

Answer 1

首先:Domain\Administrator 不是 SAM 帐户名! SAM 帐户名称是唯一的(在整个域中)长度最多为 20 个字符的名称 - 通常是您的“Windows 用户名”(例如 Administrator) - 但它NOT 包含域名。由 domain\username 组成的值 NOT 存储在 Active Directory 的任何地方!

---

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信息:

• Managing Directory Security Principals in the .NET Framework 3.5
• MSDN docs on System.DirectoryServices.AccountManagement

基本上，您可以定义域上下文并在 AD 中轻松找到用户和/或组:

// set up domain context
PrincipalContext ctx = new PrincipalContext(ContextType.Domain);

// find a user
UserPrincipal user = UserPrincipal.FindByIdentity(ctx, "SomeUserName");

if(user != null)
{
   // do something here....     
   string samAccountName = user.SamAccountName;
}

新的 S.DS.AM 使得在 AD 中与用户和组一起玩真的很容易!

如果您想搜索整个用户组(或组或计算机)，您可以使用 PrincipalSearcher 和“query-by-example”主体进行搜索:

// create your domain context
PrincipalContext ctx = new PrincipalContext(ContextType.Domain);

// define a "query-by-example" principal - here, we search for a UserPrincipal 
// and with the last name (Surname) of "Miller"
UserPrincipal qbeUser = new UserPrincipal(ctx);
qbeUser.Surname = "Miller";

// create your principal searcher passing in the QBE principal    
PrincipalSearcher srch = new PrincipalSearcher(qbeUser);

// find all matches
foreach(var found in srch.FindAll())
{
    // do whatever here - "found" is of type "Principal" - it could be user, group, computer.....          
}