FtpWebRequest错误。远程服务器返回错误：（530）未登录 [英] FtpWebRequest Errror. The remote server returned an error: (530) Not logged in

问题描述

我有以下代码，并给出错误"远程服务器返回错误：（530）未登录"。 System.Net.WebException的Response部分说"530没有提供客户端证书。"。 所以，它与我做错了的证书有关
的东西。代码如下所示。

 string ServerAddress =" someserver.xyz.com" ;; 
 string SubFolder =" toSSC" ;; 
 string fileName =" mydatafile.csv" ;; 
 string UserName =" testusername" ;; 
 string Password =" Password＃" ;; 
 string CertificatePath = @" C：\Temp \ Cert.pfx" ;; 
 string CertificatePassKey =" Passkey＃" ;; 
 
 string ftpURL = string.Format（@" ftp：// {0} // {1}"，ServerAddress，SubFolder）; 
 
 FtpWebRequest ftpRequest =（FtpWebRequest）FtpWebRequest.Create（ftpURL）; 
 ftpRequest.Credentials = new NetworkCredential（UserName.Normalize（），Password.Normalize（））; 
 ftpRequest.UsePassive = true; 
 
 X509证书证书=新X509Certificate（CertificatePath，CertificatePassKey.Normalize（））; 
 
 //创建证书集合对象并向其添加创建的证书。 
 X509CertificateCollection certCollection = new X509CertificateCollection（）; 
 certCollection.Add（证书）; 
 
 //为FTPWebRequest对象设置SSL设置
 ftpRequest.EnableSsl = true; 
 ftpRequest.ClientCertificates = certCollection; 
 
使用（FtpWebResponse ftpResponse =（FtpWebResponse）ftpRequest.GetResponse（））
 {
} 

有一个名为WINSCP的第三方工具允许我们使用以下代码进行连接。据我所知，它是一个高级库，我们不知道下面是什么，但知道这个第三方库正在工作并且
i可能在我上面的.NET代码中犯了一些错误令人沮丧。

 SessionOptions sessionOptions = new SessionOptions 
 {
 Protocol = Protocol.Ftp，
 HostName =" someserver.xyz.com"，
 UserName =" testusername"，
 Password =" Password＃"，
 FtpSecure = FtpSecure.Explicit，
 TlsClientCertificatePath = @" C：\ Temp \ Cert.pfx"，
 PrivateKeyPassphrase =" Passkey＃" 
}; 
 
使用（Session session = new Session（））
 {
 //连接
 session.Open（sessionOptions）; 
 
 //您的代码
} 

真的很感激一些帮助。

解决方案

嗨TarunPnkl，

感谢您发布此处。

对于您的问题，我创建了一个FTP来访问。当您使用  FtpWebRequest通过Credentials连接到ftp时，只需使用NetworkCredential（UserName，PassWord）。

 //获取对象用于与服务器通信。 
 FtpWebRequest request =（FtpWebRequest）WebRequest.Create（" ftp：// localhost /"）; 
 
 request.Method = WebRequestMethods.Ftp.ListDirectory; 
 
 
 request.Credentials = new NetworkCredential（" UserName"，" PassWord"）; 
 
 FtpWebResponse response =（FtpWebResponse）request.GetResponse（）; 
 
流responseStream = response.GetResponseStream（）; 
 StreamReader reader = new StreamReader（responseStream）; 
 Console.WriteLine（reader.ReadToEnd（））; 
 
 Console.WriteLine（" Directory List Complete，status {0}"，response.StatusDescription）; 
 
 reader.Close（）; 
 response.Close（）; 

它适用于我。请检查代码。如果您仍然有登录问题，请检查您的应用程序以及UserName和PassWord的许可。

最好的问候，

Wendy

I have the following code and its giving an error "The remote server returned an error: (530) Not logged in". The Response part of the System.Net.WebException is saying "530 No client certificate presented.".  So, its something related to the certificate that i am doing wrong. The code is shown as follows.

            string ServerAddress = "someserver.xyz.com";
            string SubFolder = "toSSC";
            string fileName = "mydatafile.csv";
            string UserName = "testusername";
            string Password = "Password#";
            string CertificatePath = @"C:\Temp\Cert.pfx";
            string CertificatePassKey = "Passkey#";

            string ftpURL = string.Format(@"ftp://{0}//{1}", ServerAddress, SubFolder);
 
            FtpWebRequest ftpRequest = (FtpWebRequest)FtpWebRequest.Create(ftpURL);
            ftpRequest.Credentials = new NetworkCredential(UserName.Normalize(), Password.Normalize());
            ftpRequest.UsePassive = true;

            X509Certificate certificate = new X509Certificate(CertificatePath, CertificatePassKey.Normalize());

            //Create a certificate collection object and add created certificate to it.
            X509CertificateCollection certCollection = new X509CertificateCollection();
            certCollection.Add(certificate);

            //set SSL setting for FTPWebRequest object
            ftpRequest.EnableSsl = true;
            ftpRequest.ClientCertificates = certCollection;

            using (FtpWebResponse ftpResponse = (FtpWebResponse)ftpRequest.GetResponse())
            {
            }

There is a 3rd party tool called WINSCP which is allowing us to connect using the following code. I understand that its a high level library and we dont know whats going on underneath but its frustrating to know that this 3rd party library is working and i am probably making some mistake in my above .NET code.

            SessionOptions sessionOptions = new SessionOptions
            {
                Protocol = Protocol.Ftp,
                HostName = "someserver.xyz.com",
                UserName = "testusername",
                Password = "Password#",
                FtpSecure = FtpSecure.Explicit,
                TlsClientCertificatePath = @"C:\Temp\Cert.pfx",
                PrivateKeyPassphrase = "Passkey#"
            };

            using (Session session = new Session())
            {
                // Connect
                session.Open(sessionOptions);

                // Your code
            }

Would really appreciate some help.

解决方案

Hi TarunPnkl,

Thank you for posting here.

For your question, I create a FTP to access. When you use the FtpWebRequest to connect to ftp with Credentials, it is enough to use NetworkCredential(UserName, PassWord).

 // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://localhost/");
           
            request.Method = WebRequestMethods.Ftp.ListDirectory;

           
            request.Credentials = new NetworkCredential("UserName", "PassWord");

            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

            Stream responseStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(responseStream);
            Console.WriteLine(reader.ReadToEnd());

            Console.WriteLine("Directory List Complete, status {0}", response.StatusDescription);

            reader.Close();
            response.Close();

It works well for me. Please check the code. If you still have login problem, please check the permission of you application and the UserName and PassWord.

Best Regards,

Wendy

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