SFTP using SOCKS Proxy

Demonstrates how to connect to an SFTP/SSH server through a SOCKS4 or SOCKS5 proxy.

Download Chilkat 32-bit SSH / SFTP ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

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.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
        RETURN
      END

    --  To use a SOCKS4 or SOCKS5 proxy, simply set the following
    --  properties prior to connecting:
    --  The SOCKS hostname may be a domain name or
    --  IP address:
    EXEC sp_OASetProperty @sftp, 'SocksHostname', 'www.mysocksproxyserver.com'
    EXEC sp_OASetProperty @sftp, 'SocksPort', 1080
    EXEC sp_OASetProperty @sftp, 'SocksUsername', 'myProxyLogin'
    EXEC sp_OASetProperty @sftp, 'SocksPassword', 'myProxyPassword'

    --  Set the SOCKS version to 4 or 5 based on the version
    --  of the SOCKS proxy server:
    EXEC sp_OASetProperty @sftp, 'SocksVersion', 5

    --  Note: SOCKS4 servers only support usernames without passwords.
    --  SOCKS5 servers support full login/password authentication.

    --  Connect to the SSH server.
    --  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
        RETURN
      END

    --  Your application is now connected to an SFTP/SSH server
    --  through a SOCKS4 or SOCKS5 proxy.
    --  ...

END
GO