could not read the content downloaded from ftp server

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;

namespace DTSys.FTPDownloader
{
    public class FileDownloader
    {
        static void Main(string[] args)
        {
            string ftpServer = "ftp:*******.com";
            string userName = "*********.com";
            string password = "********";

            string destionationLocation = @"D:\project\ss\";
            try
            {
                FileDownloader fDownloader = new FileDownloader();
                   List collectionOfFiles = fDownloader.getFileList(ftpServer, userName, password);
                    if (collectionOfFiles != null)
                    {
                        Console.WriteLine("if statement");
                        Console.WriteLine(collectionOfFiles);
                        foreach (string fileName in collectionOfFiles)
                        {
                            Console.WriteLine("for statment");
                            string fullPathDestionation = Path.Combine(destionationLocation, Path.GetFileName(fileName));
                            fDownloader.downloadFile(ftpServer, fileName, userName, password, fullPathDestionation);
                        }
                        Console.WriteLine("if statement closed");
                    }
                    else
                    {
                        Console.WriteLine("function is not called");
                    }

                Console.WriteLine("downloaded successfully");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
        public List getFileList(string FTPAddress, string username, string password)
        {
            List files = new List();
            Console.WriteLine("getting filelist");
            try
            {
                FtpWebRequest request = FtpWebRequest.Create(FTPAddress) as FtpWebRequest;
                request.Method = WebRequestMethods.Ftp.ListDirectory;
                request.Credentials = new NetworkCredential(username, password);
                request.UsePassive = true;
                request.UseBinary = true;
                request.KeepAlive = false;
                FtpWebResponse response = request.GetResponse() as FtpWebResponse;
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader reader = new StreamReader(responseStream))
                    {
                        while (!reader.EndOfStream)
                        {
                            files.Add(reader.ReadLine());
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            Console.WriteLine("files list got");
            return files;
        }
        public void downloadFile(string FTPAddress, string filename, string username, string password, string destFile)
        {
            Console.WriteLine("Downloading files");
            try
            {
                FtpWebRequest request = FtpWebRequest.Create(FTPAddress + "/"+filename) as FtpWebRequest;
                request.Method = WebRequestMethods.Ftp.DownloadFile;
                request.Credentials = new NetworkCredential(username, password);
                request.Method = WebRequestMethods.Ftp.GetDateTimestamp;
                request.UsePassive = true;
                request.UseBinary = false;
                request.KeepAlive = false;
                FtpWebResponse response = request.GetResponse() as FtpWebResponse;
                Stream reader = response.GetResponseStream();
                byte[] buffer = new byte[1024];
                DateTime mod = response.LastModified;
                DateTime obj = DateTime.Today;
                int res1 = DateTime.Compare(mod, obj);
                if (res1 != -1)
                {
                    Console.WriteLine("DOWNLOAD IF STATEMENT");
                    using (Stream streamFile = File.Create(destFile))
                    {
                        Console.WriteLine("USING STATEMENT");
                        while (true)
                        {
                            Console.WriteLine("WHILE STATEMENT");
                            int bytesRead = reader.Read(buffer, 0, buffer.Length);
                            if (bytesRead != 0)
                            {
                                Console.WriteLine("WHILE IF STATEMENT");
                                streamFile.Write(buffer, 0, bytesRead);
                            }
                            else
                            {
                                Console.WriteLine("WHILE ELSE STATEMENT");
                                break;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            Console.WriteLine("downloaded");
        }

    }
}
In the above code i can download the files which are created with current date.. but the contents of files could not be downloaded.. Because im getting the value of bytesRead as 0.. but there is content in tat file.. i dont know why.. anybody can help me?

What I would do is to write a program that downloads a single file from a site that you can post here, such as:

string ftpServer = "ftp://ftp.microsoft.com/developr/adc";

Then when you have that working, you can modify that test program to use the ftp site and credentials that you need, and get that working. Then merge that code into your main program. Note that in your program, you are setting:

request.Method = WebRequestMethods.Ftp.DownloadFile;

Then you set:

request.Method = WebRequestMethods.Ftp.GetDateTimestamp;

That might be one reason the download is not working, but it is not the only reason.

Using:

string fileName = "index.txt";

And using the server as above, the following code downloads the file:

WebClient request = new WebClient();

// This example assumes the FTP site uses anonymous logon.

request.Credentials = new NetworkCredential("anonymous", "[email protected]");

try

{

	byte[] newFileData = request.DownloadData(FTPAddress + "/" + filename);

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

	Console.WriteLine(fileString);

}

catch (WebException e)

{

	Console.WriteLine(e.ToString());

}

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Sam Hobbs16y ago

Accepted answer

Sam Hobbs16y ago
Please see the following. Did any of the replies help? Did I help you in listing files of a directory from ftp server..? If I helped you and/or if anyone helped you, then please check the checkbox indicating you like the answer. Since you have not done that, I will assume that all previous attempts to help you have been unsuccessful so I won't try to help. If I did help you, then please take a moment to indicate I have by checking the checkbox.
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