(Go) Upload to Tumbleweed SecureTransport FTPS Server

Demonstrates how to connect, authenticate, and upload file to a Tumbleweed Secure Transport SSL FTP Server. Instead of providing a login name and password, you pass the string "site-auth" for the username, and an empty string for the password. You must also provide a client-side digital certificate -- as the certificate's credentials and validity are used to authenticate.

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

    ftp := chilkat.NewFtp2()

    // This code has been tested with the Tumbleweed server
    // at sft.wellsfargo.com
    ftp.SetHostname("sft.wellsfargo.com")

    // Use these exact strings for the username and password:
    ftp.SetUsername("site-auth")
    ftp.SetPassword("")

    // Establish an AUTH SSL secure channel after connecting.
    // Your client-side certificate is used for authentication when
    // the SSL channel is established.
    ftp.SetAuthSsl(true)

    // The Ssl property is for establishing an implicit SSL connection
    // on port 990.  Do not set it.
    ftp.SetSsl(false)

    // Load a certificate from a .pfx
    // A PFX may contain several certs, including the certificates
    // in a chain of authority.
    certStore := chilkat.NewCertStore()
    password := "***"
    // Load the certs from a PFX into an in-memory certificate store:
    success := certStore.LoadPfxFile("my.pfx",password)
    if success != true {
        fmt.Println(certStore.LastErrorText())
        ftp.DisposeFtp2()
        certStore.DisposeCertStore()
        return
    }

    // Find the exact cert we'll use:
    cert := certStore.FindCertBySubject("My Certificate 123 ABC")
    if certStore.LastMethodSuccess() == false {
        fmt.Println("Certificate not found!")
        ftp.DisposeFtp2()
        certStore.DisposeCertStore()
        return
    }

    // Tell the Chilkat FTP2 component to use the client-side
    // cert for the SSL connection:
    success = ftp.SetSslClientCert(cert)

    // Connect and authenticate with the FTP server.
    success = ftp.Connect()
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        certStore.DisposeCertStore()
        return
    }
    else {
        // LastErrorText contains information even when
        // successful. This allows you to visually verify
        // that the secure connection actually occurred.
        fmt.Println(ftp.LastErrorText())
    }

    fmt.Println("Secure FTP Channel Established!")

    // Change to the remote directory where the file will be
    // uploaded.  If your file is to be uploaded to the FTP user 
    // account's home directory, this is not necessary.
    success = ftp.ChangeRemoteDir("someSubDir")
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        certStore.DisposeCertStore()
        return
    }

    // You may include an absolute or relative path with the 
    // local filename.  If no path is included, the file should 
    // be present in the current working directory of the calling
    // process.
    localFilename := "someFile.dat"
    remoteFilename := "someFile.dat"

    // Upload the file.
    success = ftp.PutFile(localFilename,remoteFilename)
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        certStore.DisposeCertStore()
        return
    }

    success = ftp.Disconnect()

    ftp.DisposeFtp2()
    certStore.DisposeCertStore()