SOCKS4 and SOCKS5 Proxy for FTP

Demonstrates how to connect to an FTP server through a SOCKS4 or SOCKS5 proxy. Both SSL/TLS and non-secure FTP communications may use SOCKS4 and SOCKS5 proxies.

Download 32-bit Chilkat FTP2 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)
    DECLARE @ftp int
    EXEC @hr = sp_OACreate 'Chilkat.Ftp2', @ftp OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int

    --  Any string unlocks the component for the 1st 30-days.
    EXEC sp_OAMethod @ftp, 'UnlockComponent', @success OUT, 'Anything for 30-day trial'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    EXEC sp_OASetProperty @ftp, 'Hostname', 'ftp.example-code.com'
    EXEC sp_OASetProperty @ftp, 'Username', 'myLogin'
    EXEC sp_OASetProperty @ftp, 'Password', 'myPassword'

    --  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 @ftp, 'SocksHostname', 'www.mysocksproxyserver.com'
    EXEC sp_OASetProperty @ftp, 'SocksPort', 1080
    EXEC sp_OASetProperty @ftp, 'SocksUsername', 'myProxyLogin'
    EXEC sp_OASetProperty @ftp, 'SocksPassword', 'myProxyPassword'
    --  Set the SOCKS version to 4 or 5 based on the version
    --  of the SOCKS proxy server:
    EXEC sp_OASetProperty @ftp, 'SocksVersion', 5
    --  Note: SOCKS4 servers only support usernames without passwords.
    --  SOCKS5 servers support full login/password authentication.

    --  Connect and login to the FTP server.
    EXEC sp_OAMethod @ftp, 'Connect', @success OUT
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Change to the remote directory where the file is located.
    --  This step is only necessary if the file is not in the root directory
    --  for the FTP account.
    EXEC sp_OAMethod @ftp, 'ChangeRemoteDir', @success OUT, 'junk'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Download a file.
    DECLARE @localFilename nvarchar(4000)

    SELECT @localFilename = 'c:/temp/hamlet.xml'
    DECLARE @remoteFilename nvarchar(4000)

    SELECT @remoteFilename = 'hamlet.xml'

    EXEC sp_OAMethod @ftp, 'GetFile', @success OUT, @remoteFilename, @localFilename
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @ftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    EXEC sp_OAMethod @ftp, 'Disconnect', NULL

    PRINT 'File Downloaded!'
END
GO