عدم دریافت کامل فایل یا ایراد در فایل دریافت شده با ftp

[رامین مرادی]

سلام دوستان وقت بخیر.
من برای اتصال و دانلود فایل از ftp از کلاس زیر استفاده میکنم.

 public class FTPClient

    {

        // The hostname or IP address of the FTP server

        private string _remoteHost;





        // The remote username

        private string _remoteUser;





        // Password for the remote user

        private string _remotePass;





        public FTPClient(string remoteHost, string remoteUser, string remotePassword, bool debug)

        {

            _remoteHost = remoteHost;

            _remoteUser = remoteUser;

            _remotePass = remotePassword;

        }





        /// <summary>

        /// Get a list of files and folders on the FTP server

        /// </summary>

        /// <returns></returns>

        public List<string> DirectoryListing()

        {

            return DirectoryListing(string.Empty);

        }





        /// <summary>

        /// List files and folders in a given folder on the server

        /// </summary>

        /// <param name="folder"></param>

        /// <returns></returns>

        public List<string> DirectoryListing(string folder)

        {

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(_remoteHost + folder);

            request.Method = WebRequestMethods.Ftp.ListDirectory;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);

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

            Stream responseStream = response.GetResponseStream();

            StreamReader reader = new StreamReader(responseStream);





            List<string> result = new List<string>();





            while (!reader.EndOfStream)

            {

                result.Add(reader.ReadLine());

            }





            reader.Close();

            response.Close();

            return result;

        }





        /// <summary>

        /// Download a file from the FTP server to the destination

        /// </summary>

        /// <param name="filename">filename and path to the file, e.g. public_html/test.zip</param>

        /// <param name="destination">The location to save the file, e.g. c:test.zip</param>

        public void Download(string filename, string destination)

        {

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(_remoteHost + filename);

            request.Method = WebRequestMethods.Ftp.DownloadFile;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);

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

            Stream responseStream = response.GetResponseStream();

            StreamReader reader = new StreamReader(responseStream);





            StreamWriter writer = new StreamWriter(destination);

            writer.Write(reader.ReadToEnd());





            writer.Close();

            reader.Close();

            response.Close();

        }

        public string ReadFile(string filename)

        {

            WebClient request = new WebClient();

            string url = _remoteHost + "/" + filename;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);





            byte[] newFileData = request.DownloadData(url);

            string fileString = System.Text.Encoding.UTF8.GetString(newFileData);

            return (fileString);

        }

        /// <summary>

        /// Remove a file from the server.

        /// </summary>

        /// <param name="filename">filename and path to the file, e.g. public_html/test.zip</param>

        public void DeleteFileFromServer(string filename)

        {

            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(_remoteHost + filename);

            request.Method = WebRequestMethods.Ftp.DeleteFile;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);

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

            response.Close();

        }





        /// <summary>

        /// Upload a file to the server

        /// </summary>

        /// <param name="source">Full path to the source file e.g. c:test.zip</param>

        /// <param name="destination">destination folder and filename e.g. public_html/test.zip</param>

        public void UploadFile(string source, string destination)

        {

            string filename = Path.GetFileName(source);





            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(_remoteHost + destination);

            request.Method = WebRequestMethods.Ftp.UploadFile;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);





            StreamReader sourceStream = new StreamReader(source);

            byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());





            request.ContentLength = fileContents.Length;





            Stream requestStream = request.GetRequestStream();

            requestStream.Write(fileContents, 0, fileContents.Length);





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





            response.Close();

            requestStream.Close();

            sourceStream.Close();

        }

    }

وبا کد زیر فایل رو دانلود میکنم:

FTPClient client = new FTPClient("ftp://000.000.000.000", "11578", "11578", true);

client.Download(max+".zip", "C:\\test\\Update\" + max + ".zip");

اما بعد از دانلود نمیتونم فایل رو باز کنم. خطا میده .انگار فایل کامل دانلود نمیشه . هر نوع فایلی رو هم تست کردم اما باز فایل باز نمیشه. برای مثال فایل زیپ رو که انتقال میدم موقع باز کزدن این خطا رو میده: Unexected end of archive

[the king]

سلام دوستان وقت بخیر.
من برای اتصال و دانلود فایل از ftp از کلاس زیر استفاده میکنم.

اما بعد از دانلود نمیتونم فایل رو باز کنم. خطا میده .انگار فایل کامل دانلود نمیشه . هر نوع فایلی رو هم تست کردم اما باز فایل باز نمیشه. برای مثال فایل زیپ رو که انتقال میدم موقع باز کزدن این خطا رو میده: Unexected end of archive

داده باینری رو با StreamReader و StreamWriter نخونید و ننویسید، مناسب متن هستند. تبدیل داده باینری به رشته خرابش می کنه.

        // The hostname or IP address of the FTP server

        private string _remoteHost;



        // The remote username

        private string _remoteUser;



        // Password for the remote user

        private string _remotePass;



        /// <summary>

        /// Download a file from the FTP server to the destination

        /// </summary>

        /// <param name="filename">filename and path to the file, e.g. public_html/test.zip</param>

        /// <param name="destination">The location to save the file, e.g. c:test.zip</param>

        public void Download(string filename, string destination)

        {

            var request = (FtpWebRequest)WebRequest.Create(_remoteHost + filename);

            request.Method = WebRequestMethods.Ftp.DownloadFile;

            request.Credentials = new NetworkCredential(_remoteUser, _remotePass);

            using (var response = (FtpWebResponse)request.GetResponse())

            {

                var buffer = new byte[8192];

                using (var responseStream = response.GetResponseStream())

                {

                    using (var writer = File.OpenWrite(destination))

                    {

                        int length;

                        while ((length = responseStream.Read(buffer, 0, buffer.Length)) > 0)

                        {

                            writer.Write(buffer, 0, length);

                        }

                    }

                }

            }

        }



        private void button1_Click(object sender, EventArgs e)

        {

            _remoteHost = "ftp://test.rebex.net/pub/example/";

            _remoteUser = "demo";

            _remotePass = "password";

            Download("imap-console-client.png", "imap-console-client.png");

        }

[رامین مرادی]

مهندس جان قربون دستت کارمو را انداختی فدات