| /** |
| * 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.canonicalization; |
| |
| import java.io.ByteArrayInputStream; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.xpath.XPath; |
| import javax.xml.xpath.XPathConstants; |
| import javax.xml.xpath.XPathFactory; |
| |
| import org.apache.xml.security.c14n.Canonicalizer; |
| import org.apache.xml.security.samples.DSNamespaceContext; |
| import org.apache.xml.security.samples.SampleUtils; |
| import org.apache.xml.security.utils.Constants; |
| import org.apache.xml.security.utils.XMLUtils; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * |
| * @author Christian Geuer-Pollmann |
| */ |
| public class CanonSubTree { |
| static String input = "" |
| + "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" |
| + "<Signature xmlns=\"http://www.w3.org/2000/09/xmldsig#\">\n" |
| + " <SignedInfo><!-- comment inside -->\n" |
| + " <CanonicalizationMethod Algorithm=\"http://www.w3.org/TR/2001/REC-xml-c14n-20010315\" />\n" |
| + " <SignatureMethod Algorithm=\"http://www.w3.org/2000/09/xmldsig#rsa-sha1\" />\n" |
| + " <Reference URI=\"http://www.w3.org/TR/xml-stylesheet\">\n" |
| + " <DigestMethod Algorithm=\"http://www.w3.org/2000/09/xmldsig#sha1\" />\n" |
| + " <DigestValue>60NvZvtdTB+7UnlLp/H24p7h4bs=</DigestValue>\n" |
| + " </Reference>\n" |
| + " </SignedInfo>\n" |
| + " <SignatureValue>\n" |
| + " fKMmy9GYF2s8rLFrZdVugTOFuWx19ccX7jh5HqFd4vMOY7LWAj52ykjSdvtW3fNY\n" |
| + " PPYGC4MFL19oPSId5GEsMtFMpGXB3XaCtoKjMCHQsN3+kom8YnGf7Ge1JNRcGty5\n" |
| + " 0UsoP6Asj47+QR7QECT64uoziha4WRDVyXjDrg24W+U=\n" |
| + " </SignatureValue>\n" |
| + " <KeyInfo>\n" |
| + " <KeyName>Lugh</KeyName>\n" |
| + " </KeyInfo>\n" |
| + "</Signature>\n" |
| ; |
| |
| /** |
| * Method main |
| * |
| * @param args |
| * @throws Exception |
| */ |
| public static void main(String args[]) throws Exception { |
| org.apache.xml.security.Init.init(); |
| |
| DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance(); |
| |
| dfactory.setNamespaceAware(true); |
| dfactory.setValidating(true); |
| |
| DocumentBuilder documentBuilder = dfactory.newDocumentBuilder(); |
| |
| // this is to throw away all validation warnings |
| documentBuilder.setErrorHandler(new org.apache.xml.security.utils.IgnoreAllErrorHandler()); |
| |
| byte inputBytes[] = input.getBytes(); |
| Document doc = |
| documentBuilder.parse(new ByteArrayInputStream(inputBytes)); |
| Canonicalizer c14n = |
| Canonicalizer |
| .getInstance("http://www.w3.org/TR/2001/REC-xml-c14n-20010315"); |
| |
| XPathFactory xpf = XPathFactory.newInstance(); |
| XPath xpath = xpf.newXPath(); |
| xpath.setNamespaceContext(new DSNamespaceContext()); |
| |
| String expression = "//ds:SignedInfo[1]"; |
| Element signedInfo = |
| (Element) xpath.evaluate(expression, doc, XPathConstants.NODE); |
| byte outputBytes[] = c14n.canonicalizeSubtree(signedInfo); |
| |
| if (outputBytes != null) { |
| System.out.println(new String(outputBytes)); |
| } |
| } |
| } |