(Swift 3,4,5...) FTP Upload / Download to StringBuilder

Demonstrate how to upload from a Chilkat StringBuilder object, and download into a StringBuilder object.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example assumes Chilkat Ftp2 to have been previously unlocked.
    // See Unlock Ftp2 for sample code.

    let ftp = CkoFtp2()!

    ftp.hostname = "www.my-ftp-server.com"
    ftp.username = "mFtpLogin"
    ftp.password = "myFtpPassword"

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

    // Authenticate with the FTP server.
    success = ftp.loginAfterConnectOnly()
    if success != true {
        print("\(ftp.lastErrorText!)")
        return
    }

    let sbA = CkoStringBuilder()!
    sbA.loadFile("qa_data/hamlet.xml", charset: "utf-8")

    // Upload the contents of sbA to the FTP server.
    var bIncludeBOM: Bool = false
    var remoteFilename: String? = "hamletFromSb.xml"
    success = ftp.putFileSb(sbA, charset: "utf-8", includeBom: bIncludeBOM, remoteFilePath: remoteFilename)
    if success != true {
        print("\(ftp.lastErrorText!)")
        return
    }

    // Download...
    let sbB = CkoStringBuilder()!
    success = ftp.getFileSb(remoteFilename, charset: "utf-8", sb: sbB)
    if success != true {
        print("\(ftp.lastErrorText!)")
        return
    }

    // Verify that sbA and sbB have the exact same contents.
    print("size of sbA: \(sbA.length.intValue)")
    var bCaseSensitive: Bool = true
    if sbA.contentsEqualSb(sbB, caseSensitive: bCaseSensitive) == true {
        print("Contents are equal. Success.")
    }
    else {
        print("Contents are NOT equal.  Failed.")
    }

    ftp.disconnect()

}