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Simple FTP Client

21 Apr, 2008

Author: Jeff123

Summary
FTP Sample
The System.Net namespace adds full support for the FTP protocol, making it easy to create full featured FTP clients in .NET.

.NET Classes used :

using System;

using System.Text;

using System.IO;

using System.Net;

using System;
using System.Text;
using System.IO;
using System.Net;

namespace FTPSample
{
class SimpleFTPClient
{
public FtpStatusCode Download(string destinationFile, Uri downloadUri)
{
try
{
// Check if the URI is and FTP site
if (downloadUri.Scheme != Uri.UriSchemeFtp)
{
throw new ArgumentException("URI is not an FTp site");
}

// Set up the request
FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(downloadUri);

// use the provided credentials
if (this._isAnonymousUser == false)
{
ftpRequest.Credentials = new NetworkCredential(this._userName, this._password);
}

// Download a file. Look at the other methods to see all of the potential FTP features
ftpRequest.Method = WebRequestMethods.Ftp.DownloadFile;

// get the response object
FtpWebResponse ftpResponse = (FtpWebResponse)ftpRequest.GetResponse();

Stream stream = null;
StreamReader reader = null;
StreamWriter writer = null;

// get the file as a stream from the response object and write it as
// a file stream to the local PC
try
{
stream = ftpResponse.GetResponseStream();
reader = new StreamReader(stream, Encoding.UTF8);

writer = new StreamWriter(destinationFile, false);
writer.Write(reader.ReadToEnd());

return ftpResponse.StatusCode;
}
finally
{
// Allways close all streams
stream.Close();
reader.Close();
writer.Close();
}
}
catch (Exception ex)
{
throw ex;
}
}

public string UserName
{
get { return this._userName; }
set { this._userName = value; }
}
public string Password
{
get { return this._password; }
set { this._password = value; }
}
public bool IsAnonymousUser
{
get { return this._isAnonymousUser; }
set { this._isAnonymousUser = value; }
}

private string _userName;
private string _password;
private bool _isAnonymousUser;
}
}

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