JavaScript

Extract XML from FatturaPA .p7m

Demonstrates how to verify the signature and extract the XML from a FatturaPA .p7m file.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

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

var bd = new CkBinData();
success = bd.LoadFile("qa_data/p7m/IT01879020517_abc.xml.p7m");
if (success !== true) {
    console.log("Failed to load the .p7m file");
    return;
}

var crypt = new CkCrypt2();

// Verify and extrct the payload contained within the .p7m.
// In this case, the payload is the FatturaPA XML.
// If successful, the resulting bd will contain only the XML.
var bVerified = crypt.OpaqueVerifyBd(bd);
if (bVerified !== true) {
    console.log(crypt.LastErrorText);
    console.log("Failed to extract and verify.");
    return;
}

// Save the XML to a file.
bd.WriteFile("qa_output/zIT01879020517_abc.xml");

// Alternatively, load into an XML object and emit.
var xml = new CkXml();
xml.LoadXml(bd.GetString("utf-8"));

console.log(xml.GetXml());