Open Zip from URL (OpenFromWeb)

Open a .zip from a URL and unzip.

Download Chilkat Zip ActiveX

CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @zip int
    EXEC @hr = sp_OACreate 'Chilkat.Zip2', @zip 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 @zip, 'UnlockComponent', @success OUT, 'Anything for 30-day trial'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Downloads a .zip into memory and opens it.
    EXEC sp_OAMethod @zip, 'OpenFromWeb', @success OUT, 'http://www.chilkatsoft.com/testData/hamlet.zip'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  It can be unzipped to disk:
    DECLARE @fileCount int

    EXEC sp_OAMethod @zip, 'Unzip', @fileCount OUT, 'c:/temp'
    IF @fileCount < 0
      BEGIN
        EXEC sp_OAGetProperty @zip, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  Alternatively, individual entries may be unzipped into memory.
    --  In this case, it is unzipped into a string:
    DECLARE @fileContents nvarchar(4000)

    DECLARE @entry int

    DECLARE @addCR int

    SELECT @addCR = 1
    EXEC sp_OAMethod @zip, 'GetEntryByName', @entry OUT, 'hamlet.xml'
    IF Not (@entry Is NULL )
      BEGIN
        --  If the file has bare LF line endings, add the CR to get
        --  CRLF line endings.
        EXEC sp_OAMethod @entry, 'InflateToString', @fileContents OUT, @addCR

        PRINT @fileContents
      END
END
GO