SSH Tunnel Authenticate with a SecureString Password and Private Key

See more SSH Tunnel Examples

Demonstrates the Chilkat SshTunnel.AuthenticateSecPwPk method, which authenticates using SecureString login and password objects together with a private key. The third argument is the SshKey private key.

Note: The private-key path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoTunnel
    Integer iSshPort
    String sPassword
    Variant vPrivKey
    Handle hoPrivKey
    String sKeyText
    Variant vSecureLogin
    Handle hoSecureLogin
    Variant vSecurePassword
    Handle hoSecurePassword
    Boolean iWaitForThreadExit
    String sTemp1
    Boolean bTemp1

    Move False To iSuccess

    //  Demonstrates the SshTunnel.AuthenticateSecPwPk method, which authenticates using SecureString
    //  login and password objects together with a private key.  The 1st argument is the username, the
    //  2nd is the password, and the 3rd is an SshKey private key.

    Get Create (RefClass(cComChilkatSshTunnel)) To hoTunnel
    If (Not(IsComObjectCreated(hoTunnel))) Begin
        Send CreateComObject of hoTunnel
    End

    //  The tunnel forwards accepted local connections to this destination through the SSH server.
    Set ComDestHostname Of hoTunnel To "db.internal.example.com"
    Set ComDestPort Of hoTunnel To 5432

    //  Connect to the SSH server.  This performs the TCP/proxy connection and SSH handshake, but
    //  does not authenticate yet.
    Move 22 To iSshPort
    Get ComConnect Of hoTunnel "ssh.example.com" iSshPort To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoTunnel To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  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.
    Move "mySshPassword" To sPassword

    //  Load the SSH private key.  LoadText reads the file's text, which is then imported.
    Get Create (RefClass(cComChilkatSshKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End
    Get ComLoadText Of hoPrivKey "qa_data/id_rsa" To sKeyText
    Get ComLastMethodSuccess Of hoPrivKey To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComFromOpenSshPrivateKey Of hoPrivKey sKeyText To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Place the login and password into SecureString objects.
    Get Create (RefClass(cComChilkatSecureString)) To hoSecureLogin
    If (Not(IsComObjectCreated(hoSecureLogin))) Begin
        Send CreateComObject of hoSecureLogin
    End
    Get ComAppend Of hoSecureLogin "mySshLogin" To iSuccess
    Get Create (RefClass(cComChilkatSecureString)) To hoSecurePassword
    If (Not(IsComObjectCreated(hoSecurePassword))) Begin
        Send CreateComObject of hoSecurePassword
    End
    Get ComAppend Of hoSecurePassword sPassword To iSuccess

    Get pvComObject of hoSecureLogin to vSecureLogin
    Get pvComObject of hoSecurePassword to vSecurePassword
    Get pvComObject of hoPrivKey to vPrivKey
    Get ComAuthenticateSecPwPk Of hoTunnel vSecureLogin vSecurePassword vPrivKey To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoTunnel To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Authenticated."

    //  After authenticating, call BeginAccepting to start listening for local connections to forward.

    Move True To iWaitForThreadExit
    Get ComCloseTunnel Of hoTunnel iWaitForThreadExit To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoTunnel To sTemp1
        Showln sTemp1
        Procedure_Return
    End



End_Procedure