(SQL Server) SFTP using HTTP Proxy

Demonstrates how to connect to an SFTP/SSH server through an HTTP proxy.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    --  Important: It is helpful to send the contents of the
    --  sftp.LastErrorText property when requesting support.

    DECLARE @sftp int
    EXEC @hr = sp_OACreate 'Chilkat_9_5_0.SFtp', @sftp OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    --  Any string automatically begins a fully-functional 30-day trial.
    DECLARE @success int
    EXEC sp_OAMethod @sftp, 'UnlockComponent', @success OUT, 'Anything for 30-day trial'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END

    --  To connect through an HTTP proxy, set the HttpProxyHostname
    --  and HttpProxyPort properties to the hostname (or IP address)
    --  and port of the HTTP proxy.  Typical port numbers used by
    --  HTTP proxy servers are 3128 and 8080.
    EXEC sp_OASetProperty @sftp, 'HttpProxyHostname', 'www.my-http-proxy.com'
    EXEC sp_OASetProperty @sftp, 'HttpProxyPort', 3128

    --  Important:  Your HTTP proxy server must allow non-HTTP
    --  traffic to pass.  Otherwise this does not work.

    --  Connect to the SSH server through the HTTP proxy.
    --  The standard SSH port = 22
    --  The hostname may be a hostname or IP address.
    DECLARE @port int

    DECLARE @hostname nvarchar(4000)

    SELECT @hostname = 'www.my-ssh-server.com'
    SELECT @port = 22
    EXEC sp_OAMethod @sftp, 'Connect', @success OUT, @hostname, @port
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END

    --  Your application is now connected to an SFTP/SSH server
    --  through an HTTP proxy.
    --  ...

    EXEC @hr = sp_OADestroy @sftp


END
GO