Route Socket Connections through an SSH Object

See more Socket/SSL/TLS Examples

Demonstrates Socket.UseSsh, which configures a socket to route subsequent Connect calls through an already connected and authenticated Ssh object using SSH port forwarding.

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    DECLARE @ssh int
    EXEC @hr = sp_OACreate 'Chilkat.Ssh', @ssh OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    --  Connect and authenticate a standalone SSH object.
    EXEC sp_OAMethod @ssh, 'Connect', @success OUT, 'ssh.example.com', 22
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @ssh, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh
        RETURN
      END

    --  The SSH password should come from a secure source rather than being hard-coded.
    DECLARE @sshPassword nvarchar(4000)
    SELECT @sshPassword = 'mySshPassword'
    EXEC sp_OAMethod @ssh, 'AuthenticatePw', @success OUT, 'sshUser', @sshPassword
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @ssh, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh
        RETURN
      END

    DECLARE @socket int
    EXEC @hr = sp_OACreate 'Chilkat.Socket', @socket OUT

    --  Route subsequent Connect calls through the already connected and authenticated SSH object.  The
    --  destination is reached by SSH port forwarding rather than by a direct TCP connection.
    EXEC sp_OAMethod @socket, 'UseSsh', @success OUT, @ssh
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh
        EXEC @hr = sp_OADestroy @socket
        RETURN
      END

    --  Connect to the destination through the SSH tunnel.
    DECLARE @bTls int
    SELECT @bTls = 0
    DECLARE @maxWaitMs int
    SELECT @maxWaitMs = 5000
    EXEC sp_OAMethod @socket, 'Connect', @success OUT, 'db.internal', 5432, @bTls, @maxWaitMs
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @socket, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @ssh
        EXEC @hr = sp_OADestroy @socket
        RETURN
      END

    PRINT 'Connected to the destination through the SSH tunnel.'

    EXEC @hr = sp_OADestroy @ssh
    EXEC @hr = sp_OADestroy @socket


END
GO