(JavaScript) XML Inclusive Canonicalization

Demonstrates how to convert XML to the Inclusive XML Canonicalization form as specified in http://www.w3.org/TR/xml-c14n/

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.

var success = false;

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

// The XML digital signature verification class provides utility methods for
// XML canonicalization.  This example demonstrates how to do inclusive XML canonicalization.

var http = new CkHttp();
var sbXml = new CkStringBuilder();
var canon = new CkXmlDSig();

// Use inclusive XML canonicalization.
var canonVersion = "C14N";
var withComments = false;

var url = "https://www.chilkatsoft.com/exampleData/c14n/test7.xml";
success = http.QuickGetSb(url,sbXml);

// This is the input XML:
// The XML comment is referring to when exclusive XML canonicalization is applied.  With inclusive canonicalization, the namespace nodes
// are kept, as we'll see below..

// <doc>
// <!-- A namespace node N is ignored if the nearest ancestor element of the node's parent element that is in the node-set has a namespace node in the node-set with the same local name and value as N. -->
// 	<animal xmlns:aa="https://www.animal.com/">
// 		<reptile xmlns:bb="https://www.reptile.com/">
//   			<lizard xmlns="" type="african fat tailed" abc="xyz" xmlns:aa="https://www.animal.com/" />
//   			<snake type="poisonous rattler" xmlns:bb="https://www.reptile.com/" >
//   			</snake>
//   		</reptile>
//   	</animal>
// </doc>

var xmlInclCanon = canon.CanonicalizeXml(sbXml.GetAsString(),canonVersion,withComments);
console.log(xmlInclCanon);

// The C14N (inclusive) canonicalization is:

// <doc>
// 
// 	<animal xmlns:aa="https://www.animal.com/">
// 		<reptile xmlns:bb="https://www.reptile.com/">
//   			<lizard abc="xyz" type="african fat tailed"></lizard>
//   			<snake type="poisonous rattler">
//   			</snake>
//   		</reptile>
//   	</animal>
// </doc>

// To see the difference, let's do exclusive canonicalization..
canonVersion = "EXCL_C14N";

var xmlExclCanon = canon.CanonicalizeXml(sbXml.GetAsString(),canonVersion,withComments);
console.log(xmlExclCanon);

// // The C14N (exclusive) canonicalization is:
// 
// <doc>
// 
// 	<animal>
// 		<reptile>
//   			<lizard abc="xyz" type="african fat tailed"></lizard>
//   			<snake type="poisonous rattler">
//   			</snake>
//   		</reptile>
//   	</animal>
// </doc>