(SQL Server) Examine the Contents of a .p7m by Converting to XML

Examines the contents of a .p7m signature by converting it to XML.

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

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @asn int
    -- Use "Chilkat_9_5_0.Asn" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Asn', @asn OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @asn, 'LoadBinaryFile', @success OUT, 'qa_data/p7m/a.p7m'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @asn, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @asn
        RETURN
      END

    -- Convert to XML.
    DECLARE @strXml nvarchar(4000)
    EXEC sp_OAMethod @asn, 'AsnToXml', @strXml OUT

    -- The XML returned by AsnToXml will be compact.
    -- To get the XML indented in human-readable form, load
    -- into the Chilkat XML object and emit..
    DECLARE @xml int
    -- Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Xml', @xml OUT

    EXEC sp_OAMethod @xml, 'LoadXml', @success OUT, @strXml

    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0
    EXEC sp_OAMethod @xml, 'SaveXml', @success OUT, 'qa_output/a.xml'

    -- -----------------------------------------------------------------------------------------
    -- Also see Chilkat's online tool to examine a .p7m and generate code to duplicate the .p7m
    -- -----------------------------------------------------------------------------------------

    EXEC @hr = sp_OADestroy @asn
    EXEC @hr = sp_OADestroy @xml


END
GO