如何使用 System.DirectoryServices.Protocol 验证用户名/密码？

首先，我不能使用活动目录，所以我不能使用System.DirectoryServices直接地。这将是一台向 Novell 网络发送查询的 PC，其中仅System.DirectoryServices.Protocol是支持的。

我非常确定我需要提供正确的 SearchRequest。

这是我到目前为止所拥有的：

private static String _certificatePath;
private static String _server;

private static SearchResponse Query(String user, String pwd, out String error)
{
    SearchResponse result = null;
    error = String.Empty;
    if (File.Exists(_certificatePath))
    {
        var identifier = new LdapDirectoryIdentifier(_server, false, false);
        try
        {
            using (var connection = new LdapConnection(identifier))
            {
                connection.SessionOptions.ProtocolVersion = 3;
                var cert = new X509Certificate();
                cert.Import(_certificatePath, null, X509KeyStorageFlags.DefaultKeySet);
                connection.ClientCertificates.Add(cert);
                connection.AuthType = AuthType.External;
                connection.AutoBind = false;
                var request = new SearchRequest()
                {
                    DistinguishedName = user, //Find this person
                    Filter = "(objectClass=*)", //The type of entry we are looking for
                    Scope = System.DirectoryServices.Protocols.SearchScope.Subtree, //We want all entries below this ou
                };
                result = (SearchResponse)connection.SendRequest(request); //Run the query and get results
            }
        } catch (Exception err)
        {
            error = String.Format("SDSP::Query {0}: {1}", err.GetType(), err.Message);
        }
    }
    else
    {
        error = "The system cannot find the Cryptography Certificate at the path specified in the Application Configuration file.";
    }
    return result;
}

我如何创建一个验证一个user / pwd组合？

var request = new SearchRequest()
{
    DistinguishedName = user, //Find this person
    Filter = "(objectClass=*)", //The type of entry we are looking for
    Scope = System.DirectoryServices.Protocols.SearchScope.Subtree, //We want all entries below this ou
};

让我向您展示我为实现此验证所做的最佳尝试，也许它对您有用。

在我的上下文中，这不起作用，因为我的管理员用户无法读取属性“userPassword”，而且我不明白为什么。我猜是未分配某些权限。

无论如何，这是代码，希望它有所帮助：

        var server = "<SERVER:PORT>";
        var adminUser = "<USERNAME>";
        var adminPass = "<PASSWORD>";

        using (var ldap = new LdapConnection(server))
        {
            ldap.SessionOptions.ProtocolVersion = 3;
            // To simplify this example I'm not validating certificate. Your code is fine.
            ldap.SessionOptions.VerifyServerCertificate += (connection, certificate) => true;
            ldap.SessionOptions.SecureSocketLayer = true;

            ldap.AuthType = AuthType.Basic;
            ldap.Bind(new System.Net.NetworkCredential($"cn={adminUser},o=<ORGANIZATION>", adminPass));

            // Now I will search to find user's DN.
            // If you know exact DN, then you don't need to search, go to compare request directly.
            var search = new SearchRequest
            {
                //Here goes base DN node to start searching. Node closest to entry improves performance.
                // Best base DN is one level above.
                DistinguishedName = "<BASEDN>", //i.e.: ou=users,o=google
                Filter = "uid=<USERNAME>",
                Scope = SearchScope.OneLevel
            };

            // Adding null to attributes collection, makes attributes list empty in the response.
            // This improves performance because we don't need any info of the entry.
            search.Attributes.Add(null);

            var results = (SearchResponse)ldap.SendRequest(search);

            if (results.Entries.Count == 0)
                throw new Exception("User not found");

            // Because I'm searching "uid" can't exists more than one entry.
            var entry = results.Entries[0];

            // Here I use DN from entry found.
            var compare = new CompareRequest(entry.DistinguishedName, new DirectoryAttribute("userPassword", "<PASSWORD>"));
            var response = (CompareResponse)ldap.SendRequest(compare);

            if (response.ResultCode != ResultCode.CompareTrue)
                throw new Exception("User and/or Password incorrect.");
        }