PowerBuilder

Insert PDF as Base64 into XML, then Extract back to PDF File

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Demonstrates how to insert any file into XML using base64 encoding, and then extract back to the original file. This example embeds a PDF in the XML, but the type of file does not matter. It can be any type of file. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Bd
oleobject loo_Xml
oleobject loo_Bd2

li_Success = 0

// Load our PDF file.
loo_Bd = create oleobject
li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData")
if li_rc < 0 then
    destroy loo_Bd
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Bd.LoadFile("qa_data/helloWorld.pdf")
if li_Success <> 1 then
    Write-Debug "Failed to load PDF file."
    destroy loo_Bd
    return
end if

// Load the following XML:
// 
// <?xml version="1.0" encoding="utf-8" ?>
// <something>
//     <xyz>
//         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
//     </xyz>
// </something>

loo_Xml = create oleobject
li_rc = loo_Xml.ConnectToNewObject("Chilkat.Xml")

li_Success = loo_Xml.LoadXmlFile("qa_data/xml/xmlToContainPdf.xml")
if li_Success <> 1 then
    Write-Debug "Failed to load XML file."
    destroy loo_Bd
    destroy loo_Xml
    return
end if

// Insert the PDF into the XML.
loo_Xml.NewChild2("xyz|pdfData",loo_Bd.GetEncoded("base64"))

// Show the new XML:
Write-Debug loo_Xml.GetXml()

// The XML now looks like this:
// <?xml version="1.0" encoding="utf-8" ?>
// <something>
//     <xyz>
//         <abc123>A base64 encoded PDF file will be inserted under this node.</abc123>
//         <pdfData>JVBERi0xL ... UlRU9GCg==</pdfData>
//     </xyz>
// </something>

// To extract the PDF data out and restore the PDF file:
loo_Bd2 = create oleobject
li_rc = loo_Bd2.ConnectToNewObject("Chilkat.BinData")

li_Success = loo_Bd2.AppendEncoded(loo_Xml.GetChildContent("xyz|pdfData"),"base64")
li_Success = loo_Bd2.WriteFile("qa_output/helloWorld.pdf")

Write-Debug "Success."


destroy loo_Bd
destroy loo_Xml
destroy loo_Bd2