Continue SFTP Keyboard-Interactive Authentication

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Demonstrates the Chilkat SFtp.ContinueKeyboardAuth method, which submits a response to a keyboard-interactive prompt. The only argument is the response text; for a request with multiple prompts, an XML response is supplied instead. It returns XML indicating the next prompt or the final result.

Background: This is the second half of the exchange started by StartKeyboardAuth. A server may issue several rounds of prompts, so a robust client loops: submit answers, read the returned XML, and continue until it sees success or failure. On success, remember that InitializeSftp still must be called before any file operation.

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    success := false

    //  Demonstrates the SFtp.ContinueKeyboardAuth method, which submits a response to a
    //  keyboard-interactive prompt.  The only argument is the response.  For multiple prompts, an
    //  XML response is supplied instead.

    sftp := chilkat.NewSFtp()

    //  Step 1: Connect the SSH transport.  Port 22 is the usual port.
    port := 22
    success = sftp.Connect("sftp.example.com",port)
    if success == false {
        fmt.Println(sftp.LastErrorText())
        sftp.DisposeSFtp()
        return
    }

    //  Begin keyboard-interactive authentication to receive the server's prompt(s).
    infoRequestXml := sftp.StartKeyboardAuth("mySshLogin")
    if sftp.LastMethodSuccess() == false {
        fmt.Println(sftp.LastErrorText())
        sftp.DisposeSFtp()
        return
    }

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    password := "mySshPassword"

    //  Submit the response (typically the password).  The returned XML indicates the next prompt or
    //  the final result.
    result := sftp.ContinueKeyboardAuth(password)
    if sftp.LastMethodSuccess() == false {
        fmt.Println(sftp.LastErrorText())
        sftp.DisposeSFtp()
        return
    }

    fmt.Println(*result)

    //  On success, initialize the SFTP subsystem.
    success = sftp.InitializeSftp()
    if success == false {
        fmt.Println(sftp.LastErrorText())
        sftp.DisposeSFtp()
        return
    }

    sftp.Disconnect()

    sftp.DisposeSFtp()