c# - FtpWeb 请求 : The remote server returned an error: (530) Not logged in

Question

我一直收到错误消息“远程服务器返回错误:(530) 未登录。”当调用 FtpWebRequest.GetResponse() 时。我怀疑这是因为我错误地配置了用于基本身份验证的 FTP 站点，但我不确定。我读过其他帖子，但解决方案似乎围绕着 NetworkCredential 对象中指定的不正确凭据。我希望能够通过 SSL 将凭据传递到 ftp 站点。我已将问题隔离到一个测试项目中。在这里，主要是从 msdn https://msdn.microsoft.com/en-us/library/system.net.ftpwebrequest.enablessl(v=vs.110).aspx 复制的:

public static void Main(string[] args)
{
    // Only use this to get around issues with self-signed certificates...
    ServicePointManager.ServerCertificateValidationCallback =
        delegate (object s, X509Certificate certificate, X509Chain chain,
        SslPolicyErrors sslPolicyErrors) { return true; };

    ListFilesOnServerSsl(new Uri("ftp://127.0.0.1:21"));

    Console.WriteLine("Press any key...");
    Console.ReadKey();
}

public static bool ListFilesOnServerSsl(Uri serverUri)
{
    // The serverUri should start with the ftp:// scheme.
    if (serverUri.Scheme != Uri.UriSchemeFtp)
    {
        return false;
    }
    // Get the object used to communicate with the server.
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
    request.Method = WebRequestMethods.Ftp.ListDirectory;
    request.UseBinary = false;
    request.EnableSsl = true;

    // Need to use credentials to log in...
    request.Credentials = new NetworkCredential("TestFtpUser", "IDontKnow");

    // Get the ServicePoint object used for this request, and limit it to one connection.
    // In a real-world application you might use the default number of connections (2),
    // or select a value that works best for your application.

    ServicePoint sp = request.ServicePoint;
    Console.WriteLine("ServicePoint connections = {0}.", sp.ConnectionLimit);
    sp.ConnectionLimit = 1;

    FtpWebResponse response = (FtpWebResponse)request.GetResponse();
    Console.WriteLine("The content length is {0}", response.ContentLength);
    // The following streams are used to read the data returned from the server.
    Stream responseStream = null;
    StreamReader readStream = null;
    try
    {
        responseStream = response.GetResponseStream();
        readStream = new StreamReader(responseStream, System.Text.Encoding.UTF8);

        if (readStream != null)
        {
            // Display the data received from the server.
            Console.WriteLine(readStream.ReadToEnd());
        }
        Console.WriteLine("List status: {0}", response.StatusDescription);
    }
    finally
    {
        if (readStream != null)
        {
            readStream.Close();
        }
        if (response != null)
        {
            response.Close();
        }
    }


    Console.WriteLine("Banner message: {0}",
        response.BannerMessage);

    Console.WriteLine("Welcome message: {0}",
        response.WelcomeMessage);

    Console.WriteLine("Exit message: {0}",
        response.ExitMessage);
    return true;
}

以下是在 IIS 中的本地主机上创建 ftp 站点的屏幕截图:

我注意到在设置基本身份验证时 IIS 没有要求我输入密码。我不知道这是为什么。我不应该对 FTP 站点使用基本身份验证吗？

非常感谢!

Answer 1

原来是我在IIS中配置ftp站点时，没有在机器上配置本地用户帐号来匹配“指定用户”。转到“控制面板”=>“用户帐户”=>“用户帐户”=>“管理用户帐户”=>“管理用户帐户”=>添加并将用户添加到我的本地计算机后，消息“( 530) 未登录”已经消失。