/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "<WebSig>" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 2001, Institute for
* Data Communications Systems, <http://www.nue.et-inf.uni-siegen.de/>.
* The development of this software was partly funded by the European
* Commission in the <WebSig> project in the ISIS Programme.
* For more information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xml.security.keys.keyresolver.implementations;
import java.io.IOException;
import java.io.ByteArrayInputStream;
import java.math.BigInteger;
import java.security.*;
import java.security.cert.*;
import java.security.spec.*;
import javax.xml.transform.TransformerException;
import org.apache.xpath.XPathAPI;
import org.w3c.dom.*;
import org.apache.xml.security.exceptions.XMLSecurityException;
import org.apache.xml.security.keys.content.x509.XMLX509IssuerSerial;
import org.apache.xml.security.keys.content.X509Data;
import org.apache.xml.security.keys.keyresolver.*;
import org.apache.xml.security.keys.storage.*;
import org.apache.xml.security.signature.XMLSignatureException;
import org.apache.xml.security.utils.*;
/**
*
* @author $Author: vdkoogh $
*/
public class X509IssuerSerialResolver extends KeyResolverSpi {
/** {@link org.apache.log4j} logging facility */
static org.apache.log4j.Category cat =
org.apache.log4j.Category
.getInstance(X509IssuerSerialResolver.class.getName());
/**
* Method engineCanResolve
*
* @param element
* @param BaseURI
* @param storage
*
*/
public boolean engineCanResolve(Element element, String BaseURI,
StorageResolver storage) {
cat.debug("Can I resolve " + element.getTagName() + "?");
X509Data x509data = null;
try {
x509data = new X509Data(element, BaseURI);
} catch (XMLSignatureException ex) {
cat.debug("I can't");
return false;
} catch (XMLSecurityException ex) {
cat.debug("I can't");
return false;
}
if (x509data == null) {
cat.debug("I can't");
return false;
}
if (x509data.containsIssuerSerial()) {
return true;
}
cat.debug("I can't");
return false;
}
/**
* Method engineResolvePublicKey
*
* @param element
* @param BaseURI
* @param storage
*
* @throws KeyResolverException
*/
public PublicKey engineResolvePublicKey(
Element element, String BaseURI, StorageResolver storage)
throws KeyResolverException {
X509Certificate cert = this.engineResolveX509Certificate(element,
BaseURI, storage);
if (cert != null) {
return cert.getPublicKey();
}
return null;
}
/**
* Method engineResolveX509Certificate
*
* @param element
* @param BaseURI
* @param storage
*
* @throws KeyResolverException
*/
public X509Certificate engineResolveX509Certificate(
Element element, String BaseURI, StorageResolver storage)
throws KeyResolverException {
try {
if (storage == null) {
Object exArgs[] = { Constants._TAG_X509ISSUERSERIAL };
KeyResolverException ex =
new KeyResolverException("KeyResolver.needStorageResolver",
exArgs);
cat.info("", ex);
throw ex;
}
X509Data x509data = new X509Data(element, BaseURI);
int noOfISS = x509data.lengthIssuerSerial();
while (storage.hasNext()) {
X509Certificate cert = storage.next();
XMLX509IssuerSerial certSerial = new XMLX509IssuerSerial(element.getOwnerDocument(), cert);
cat.debug("Found Certificate Issuer: "
+ certSerial.getIssuerName());
cat.debug("Found Certificate Serial: "
+ certSerial.getSerialNumber().toString());
for (int i=0; i<noOfISS; i++) {
XMLX509IssuerSerial xmliss = x509data.itemIssuerSerial(i);
cat.debug("Found Element Issuer: "
+ xmliss.getIssuerName());
cat.debug("Found Element Serial: "
+ xmliss.getSerialNumber().toString());
if (certSerial.equals(xmliss)) {
cat.debug("match !!! ");
return cert;
} else {
cat.debug("no match...");
}
}
}
return null;
} catch (XMLSecurityException ex) {
cat.debug("XMLSecurityException", ex);
throw new KeyResolverException("generic.EmptyMessage", ex);
}
}
/**
* Method engineResolveSecretKey
*
* @param element
* @param BaseURI
* @param storage
*
* @throws KeyResolverException
*/
public javax.crypto.SecretKey engineResolveSecretKey(
Element element, String BaseURI, StorageResolver storage)
throws KeyResolverException {
return null;
}
}