(VB.NET) SOCKS4 and SOCKS5 Proxy for FTP

Demonstrates how to connect to an FTP server through a SOCKS4 or SOCKS5 proxy. Both SSL/TLS and non-secure FTP communications may use SOCKS4 and SOCKS5 proxies.

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' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftp.example.com"
ftp.Username = "login"
ftp.Password = "password"

' To use a SOCKS4 or SOCKS5 proxy, simply set the following
' properties prior to connecting:
' The SOCKS hostname may be a domain name or 
' IP address:
ftp.SocksHostname = "www.mysocksproxyserver.com"
ftp.SocksPort = 1080
ftp.SocksUsername = "myProxyLogin"
ftp.SocksPassword = "myProxyPassword"
' Set the SOCKS version to 4 or 5 based on the version
' of the SOCKS proxy server:
ftp.SocksVersion = 5
' Note: SOCKS4 servers only support usernames without passwords.
' SOCKS5 servers support full login/password authentication.


' Connect and login to the FTP server.
Dim success As Boolean = ftp.Connect()
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


' Change to the remote directory where the file is located.
' This step is only necessary if the file is not in the root directory
' for the FTP account.
success = ftp.ChangeRemoteDir("junk")
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


' Download a file.
Dim localFilename As String = "c:/temp/hamlet.xml"
Dim remoteFilename As String = "hamlet.xml"

success = ftp.GetFile(remoteFilename,localFilename)
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
End If


success = ftp.Disconnect()

Debug.WriteLine("File Downloaded!")