/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.xml.security.samples.transforms;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.apache.xml.security.signature.XMLSignatureInput;
import org.apache.xml.security.samples.DSNamespaceContext;
import org.apache.xml.security.samples.SampleUtils;
import org.apache.xml.security.transforms.Transforms;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.XMLUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* This class demonstrates the use of a Transform forEnveloped Signature.
*
* @author Christian Geuer-Pollmann
* @version %I%, %G%
*/
public class SampleTransformEnvelopedSignature {
/**
* Method main
*
* @param args
* @throws Exception
*/
public static void main(String args[]) throws Exception {
String inputStr =
"<?xml version=\"1.0\"?>" + "\n"
+ "<Document xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <Data attr='attrValue'>text in Data</Data>" + "\n"
+ "<Signature Id='SignatureToBeOmitted' xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <SignedInfo>" + "\n"
+ " <Reference>" + "\n"
+ " <Transforms>" + "\n"
// + " <Transform Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments' />" + "\n"
+ " <Transform Algorithm='http://www.w3.org/2000/09/xmldsig#enveloped-signature' />" + "\n"
+ " <Transform Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments' />" + "\n"
+ " </Transforms>" + "\n"
+ " </Reference>" + "\n"
+ " </SignedInfo>" + "\n"
+ " </Signature>"
+ " <Signature Id='VisibleSignature' xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <SignedInfo xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <Reference xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <Transforms xmlns='http://www.w3.org/2000/09/xmldsig#'>" + "\n"
+ " <Transform Algorithm='http://www.w3.org/2000/09/xmldsig#enveloped-signature' />" + "\n"
+ " <Transform Algorithm='http://www.w3.org/TR/2001/REC-xml-c14n-20010315#WithComments' />" + "\n"
+ " </Transforms>" + "\n"
+ " </Reference>" + "\n"
+ " </SignedInfo>" + "\n"
+ " </Signature>" + "\n"
+ "</Document>" + "\n"
;
org.apache.xml.security.Init.init();
javax.xml.parsers.DocumentBuilderFactory dbf =
javax.xml.parsers.DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
javax.xml.parsers.DocumentBuilder db = dbf.newDocumentBuilder();
org.w3c.dom.Document doc =
db.parse(new java.io.ByteArrayInputStream(inputStr.getBytes()));
XPathFactory xpf = XPathFactory.newInstance();
XPath xpath = xpf.newXPath();
xpath.setNamespaceContext(new DSNamespaceContext());
String expression = "//ds:Signature[@Id='SignatureToBeOmitted']//ds:Transforms";
Element transformsElem =
(Element) xpath.evaluate(expression, doc, XPathConstants.NODE);
Transforms transforms = new Transforms(transformsElem, "memory://");
XMLSignatureInput input = new XMLSignatureInput((Node) doc);
// input.setCanonicalizerURI(Canonicalizer.ALGO_ID_C14N_WITH_COMMENTS);
XMLSignatureInput result = transforms.performTransforms(input);
System.out.println(new String(result.getBytes()));
}
}