(Swift 2) FTP through HTTP Tunnel (FTP over HTTP Proxy)

Note: This example requires Chilkat v9.5.0.51 or greater.

FTP through an HTTP tunnel (via an HTTP proxy server that supports HTTP tunneling).

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

    let ftp = CkoFtp2()

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

    // Set the HTTP proxy server properties.
    // This is to connect via HTTP/1.1 using CONNECT method
    ftp.HttpProxyHostname = "192.168.1.127"
    ftp.HttpProxyPort = 8080

    // If the proxy server requires authentication...
    ftp.HttpProxyUsername = "myProxyUsername"
    ftp.HttpProxyPassword = "myProxyPassword"

    // FTP over an HTTP proxy requires that FTP Passive mode be used
    // for data transfers. It is not possible to use non-passive (active) mode
    // for FTP over HTTP.
    ftp.Passive = true

    // Connect and login to the FTP server.
    var success: Bool = ftp.Connect()
    if success != true {
        print("\(ftp.LastErrorText)")
        return
    }

    // Change to the remote directory where the file will be uploaded.
    success = ftp.ChangeRemoteDir("junk")
    if success != true {
        print("\(ftp.LastErrorText)")
        return
    }

    // Upload a file.
    var localFilename: String? = "c:/temp/hamlet.xml"
    var remoteFilename: String? = "hamlet.xml"

    success = ftp.PutFile(localFilename, remoteFilename: remoteFilename)
    if success != true {
        print("\(ftp.LastErrorText)")
        return
    }

    success = ftp.Disconnect()

    print("File Uploaded!")

}