CODEWITHSUNDEEP
c#ftp
Wadhawan Vishal
Wadhawan Vishal

Reputation: 918

How to Download Zip file from Ftp in C#

I have to download zip file from ftp using c# code. i have used the following code.

        Uri url = new Uri("ftp://ftpurl");
        if (url.Scheme == Uri.UriSchemeFtp)
        {

            FtpWebRequest objRequest = (FtpWebRequest)FtpWebRequest.Create(url);
            //Set credentials if required else comment this Credential code
            NetworkCredential objCredential = new NetworkCredential(userid, Pwd);
            objRequest.Credentials = objCredential;
            objRequest.Method = WebRequestMethods.Ftp.DownloadFile;

            FtpWebResponse objResponse = (FtpWebResponse)objRequest.GetResponse();

            StreamReader objReader = new StreamReader(objResponse.GetResponseStream());
            byte[] buffer = new byte[16 * 1024];
            int len = 0;
            FileStream objFS = new FileStream(@"E:\ftpwrite", FileMode.Create, FileAccess.Write, FileShare.Read);
            while ((len = objReader.BaseStream.Read(buffer, 0, buffer.Length)) != 0)
            {
                objFS.Write(buffer, 0, len);
            }
            objFS.Close();
            objResponse.Close();

        }

but this code is not giving me the correct response as i want to save file from ftp and this code is writing the data from file in bytes to my file. my file is a zip file not a text file. please help me what should i have to do or i am mistunderstanding.

Upvotes: 0

Views: 1593

Answers (2)

Lunyx
Lunyx

Reputation: 3284

If you're not opposed to using free 3rd party libraries, you can use http://www.enterprisedt.com/products/edtftpnet/download.html

It makes accessing the FTP a lot simpler IMO. Sample code (taken and slightly modified from their documentation):

using (FTPConnection ftp = new FTPConnection())
{
    ftpConnection.ServerAddress = "myserver";
    ftpConnection.UserName = userName;
    ftpConnection.Password = password; 
    ftpConnection.Connect();
    ftpConnection.DownloadFile(localFilePath, remoteFileName);
}

Upvotes: 1

Jon Skeet
Jon Skeet

Reputation: 1500515

My guess is that it's something to do with the fact that you're using StreamReader. It's possible that on construction it's reading from the stream to try to determine the encoding. As you're not really using it - just the BaseStream - it's pointless and leads to unclear code.

Just use:

Stream inputStream = objResponse.GetResponseStream();

Additionally, you should use using statements for all the streams, and the response.

Oh, and if you're using .NET 4 or higher, use Stream.CopyTo to save yourself some time.

Upvotes: 1

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