(Node.js) 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.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var ftp = 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.
    var success = ftp.Connect();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // 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) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Download a file.
    var localFilename = "c:/temp/hamlet.xml";
    var remoteFilename = "hamlet.xml";

    success = ftp.GetFile(remoteFilename,localFilename);
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    success = ftp.Disconnect();

    console.log("File Downloaded!");

}

chilkatExample();