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SSH Tunnel Authenticate with a Password

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Demonstrates the Chilkat SshTunnel.AuthenticatePw method, which authenticates the SSH connection with a login name and password. The first argument is the login and the second is the password. Connect first, and call BeginAccepting afterward.

Background: Password authentication is the simplest option, but the password is a secret and should never be a hard-coded literal — obtain it from an interactive prompt, an environment variable, or a secrets vault. Public-key authentication is generally preferred for the unattended, long-running services that tunnels often are.

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Local $bSuccess = False

;  Demonstrates the SshTunnel.AuthenticatePw method, which authenticates the SSH connection with
;  a login name and password.  The 1st argument is the login and the 2nd is the password.

$oTunnel = ObjCreate("Chilkat.SshTunnel")

;  The tunnel forwards accepted local connections to this destination through the SSH server.
$oTunnel.DestHostname = "db.internal.example.com"
$oTunnel.DestPort = 5432

;  Connect to the SSH server.  This performs the TCP/proxy connection and SSH handshake, but
;  does not authenticate yet.
Local $iSshPort = 22
$bSuccess = $oTunnel.Connect("ssh.example.com",$iSshPort)
If ($bSuccess = False) Then
    ConsoleWrite($oTunnel.LastErrorText & @CRLF)
    Exit
EndIf

;  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.
Local $sPassword = "mySshPassword"

$bSuccess = $oTunnel.AuthenticatePw("mySshLogin",$sPassword)
If ($bSuccess = False) Then
    ConsoleWrite($oTunnel.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Authenticated." & @CRLF)

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

Local $bWaitForThreadExit = True
$bSuccess = $oTunnel.CloseTunnel($bWaitForThreadExit)
If ($bSuccess = False) Then
    ConsoleWrite($oTunnel.LastErrorText & @CRLF)
    Exit
EndIf