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/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.signature;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
import org.apache.xml.security.keys.KeyInfo;
import org.apache.xml.security.samples.utils.resolver.OfflineResolver;
import org.apache.xml.security.signature.XMLSignature;
import org.apache.xml.security.samples.SampleUtils;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.XMLUtils;
import org.apache.xpath.XPathAPI;
import org.w3c.dom.Element;
/**
*
*
*
*
* @author $Author: mullan $
*
*/
public class VerifySignature {
/**
* Method main
*
* @param unused
*/
public static void main(String unused[]) {
boolean schemaValidate = false;
final String signatureSchemaFile = "data/xmldsig-core-schema.xsd";
// String signatureFileName = "data/ie/baltimore/merlin-examples/merlin-xmldsig-fifteen/signature-enveloping-rsa.xml";
String signatureFileName = "signature.xml";
if (schemaValidate) {
System.out.println("We do schema-validation");
}
javax.xml.parsers.DocumentBuilderFactory dbf =
javax.xml.parsers.DocumentBuilderFactory.newInstance();
if (schemaValidate) {
dbf.setAttribute("http://apache.org/xml/features/validation/schema",
Boolean.TRUE);
dbf.setAttribute(
"http://apache.org/xml/features/dom/defer-node-expansion",
Boolean.TRUE);
dbf.setValidating(true);
dbf.setAttribute("http://xml.org/sax/features/validation",
Boolean.TRUE);
}
dbf.setNamespaceAware(true);
dbf.setAttribute("http://xml.org/sax/features/namespaces", Boolean.TRUE);
if (schemaValidate) {
dbf.setAttribute(
"http://apache.org/xml/properties/schema/external-schemaLocation",
Constants.SignatureSpecNS + " " + signatureSchemaFile);
}
try {
// File f = new File("signature.xml");
File f = new File(signatureFileName);
System.out.println("Try to verify " + f.toURL().toString());
javax.xml.parsers.DocumentBuilder db = dbf.newDocumentBuilder();
db.setErrorHandler(new org.apache.xml.security.utils
.IgnoreAllErrorHandler());
if (schemaValidate) {
db.setEntityResolver(new org.xml.sax.EntityResolver() {
public org.xml.sax.InputSource resolveEntity(
String publicId, String systemId)
throws org.xml.sax.SAXException {
if (systemId.endsWith("xmldsig-core-schema.xsd")) {
try {
return new org.xml.sax.InputSource(
new FileInputStream(signatureSchemaFile));
} catch (FileNotFoundException ex) {
throw new org.xml.sax.SAXException(ex);
}
} else {
return null;
}
}
});
}
org.w3c.dom.Document doc = db.parse(new java.io.FileInputStream(f));
Element nscontext = SampleUtils.createDSctx(doc, "ds",
Constants.SignatureSpecNS);
Element sigElement = (Element) XPathAPI.selectSingleNode(doc,
"//ds:Signature[1]", nscontext);
XMLSignature signature = new XMLSignature(sigElement,
f.toURL().toString());
signature.addResourceResolver(new OfflineResolver());
// XMLUtils.outputDOMc14nWithComments(signature.getElement(), System.out);
KeyInfo ki = signature.getKeyInfo();
if (ki != null) {
if (ki.containsX509Data()) {
System.out
.println("Could find a X509Data element in the KeyInfo");
}
X509Certificate cert = signature.getKeyInfo().getX509Certificate();
if (cert != null) {
/*
System.out.println(
"I try to verify the signature using the X509 Certificate: "
+ cert);
*/
System.out.println("The XML signature in file "
+ f.toURL().toString() + " is "
+ (signature.checkSignatureValue(cert)
? "valid (good)"
: "invalid !!!!! (bad)"));
} else {
System.out.println("Did not find a Certificate");
PublicKey pk = signature.getKeyInfo().getPublicKey();
if (pk != null) {
/*
System.out.println(
"I try to verify the signature using the public key: "
+ pk);
*/
System.out.println("The XML signature in file "
+ f.toURL().toString() + " is "
+ (signature.checkSignatureValue(pk)
? "valid (good)"
: "invalid !!!!! (bad)"));
} else {
System.out.println(
"Did not find a public key, so I can't check the signature");
}
}
} else {
System.out.println("Did not find a KeyInfo");
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
static {
org.apache.xml.security.Init.init();
}
}
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