Rust

XML Inclusive Canonicalization

See more XML Digital Signatures Examples

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

// 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.

let http = chilkat::Http::new();
let sb_xml = chilkat::StringBuilder::new();
let canon = chilkat::XmlDSig::new();

// Use inclusive XML canonicalization.
let mut canon_version = "C14N".to_string();
let with_comments = false;

let url = "https://www.chilkatsoft.com/exampleData/c14n/test7.xml".to_string();
let _ = http.quick_get_sb(&url, &sb_xml).is_ok();

// 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>

let xml_incl_canon = canon.canonicalize_xml(&sb_xml.get_as_string().unwrap_or_default(), &canon_version, with_comments).unwrap_or_default();
println!("{}", xml_incl_canon);

// 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..
canon_version = "EXCL_C14N".to_string();

let xml_excl_canon = canon.canonicalize_xml(&sb_xml.get_as_string().unwrap_or_default(), &canon_version, with_comments).unwrap_or_default();
println!("{}", xml_excl_canon);

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