SQL Server

SFTP Upload and Download to a BinData Object

See more SFTP Examples

Demonstrates how to SFTP upload from a BinData object, and download into a BinData object. SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

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

    -- Set some timeouts, in milliseconds:
    EXEC sp_OASetProperty @sftp, 'ConnectTimeoutMs', 5000
    EXEC sp_OASetProperty @sftp, 'IdleTimeoutMs', 10000

    -- Connect to the SSH server and then authenticate.
    DECLARE @port int
    SELECT @port = 22
    EXEC sp_OAMethod @sftp, 'Connect', @success OUT, 'MY-SSH-SERVER-DOMAIN-OR-IP', @port
    IF @success = 1
      BEGIN
        EXEC sp_OAMethod @sftp, 'AuthenticatePw', @success OUT, 'MY-SSH-LOGIN', 'MY-SSH-PASSWORD'
        IF @success = 1
          BEGIN
            EXEC sp_OAMethod @sftp, 'InitializeSftp', @success OUT
          END
      END
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        RETURN
      END

    DECLARE @bdA int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdA OUT

    EXEC sp_OAMethod @bdA, 'LoadFile', @success OUT, 'qa_data/jpg/penguins.jpg'

    -- Upload the contents of bdA to the SSH/SFTP server.
    DECLARE @remotePath nvarchar(4000)
    SELECT @remotePath = 'sftpTesting/penguins.jpg'
    EXEC sp_OAMethod @sftp, 'UploadBd', @success OUT, @bdA, @remotePath
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        EXEC @hr = sp_OADestroy @bdA
        RETURN
      END

    -- Download the file..
    DECLARE @bdB int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdB OUT

    EXEC sp_OAMethod @sftp, 'DownloadBd', @success OUT, @remotePath, @bdB
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @sftp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @sftp
        EXEC @hr = sp_OADestroy @bdA
        EXEC @hr = sp_OADestroy @bdB
        RETURN
      END

    -- Verify that bdA and bdB have the exact same contents.

    EXEC sp_OAGetProperty @bdA, 'NumBytes', @iTmp0 OUT
    PRINT 'size of bdA: ' + @iTmp0
    EXEC sp_OAMethod @bdA, 'ContentsEqual', @iTmp0 OUT, @bdB
    IF @iTmp0 = 1
      BEGIN

        PRINT 'Contents are equal. Success.'
      END
    ELSE
      BEGIN

        PRINT 'Contents are NOT equal.  Failed.'
      END

    EXEC sp_OAMethod @sftp, 'Disconnect', NULL

    EXEC @hr = sp_OADestroy @sftp
    EXEC @hr = sp_OADestroy @bdA
    EXEC @hr = sp_OADestroy @bdB


END
GO