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/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* 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 com.sun.org.apache.xml.internal.security.keys.keyresolver.implementations;
import java.security.PublicKey;
import java.security.cert.X509Certificate;
import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
import com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI;
import com.sun.org.apache.xml.internal.security.keys.keyresolver.KeyResolverException;
import com.sun.org.apache.xml.internal.security.keys.keyresolver.KeyResolverSpi;
import com.sun.org.apache.xml.internal.security.keys.storage.StorageResolver;
import com.sun.org.apache.xml.internal.security.utils.Constants;
import com.sun.org.apache.xml.internal.security.utils.XMLUtils;
import org.w3c.dom.Element;
/**
*
*
* @author $Author: raul $
*/
public class X509SKIResolver extends KeyResolverSpi {
/** {@link java.util.logging} logging facility */
static java.util.logging.Logger log =
java.util.logging.Logger.getLogger(X509SKIResolver.class.getName());
/** Field _x509childNodes */
private Element _x509childNodes[] = null;
/** Field _x509childObject[] */
private XMLX509SKI _x509childObject[] = null;
/**
* Method engineCanResolve
* @inheritDoc
* @param element
* @param BaseURI
* @param storage
*
*/
public boolean engineCanResolve(Element element, String BaseURI,
StorageResolver storage) {
if (true) {
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "Can I resolve " + element.getTagName() + "?");
}
if (!XMLUtils.elementIsInSignatureSpace(element,
Constants._TAG_X509DATA)) {
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "I can't");
return false;
}
this._x509childNodes = XMLUtils.selectDsNodes(element,
Constants._TAG_X509SKI);
if ((this._x509childNodes != null)
&& (this._x509childNodes.length > 0)) {
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "Yes Sir, I can");
return true;
}
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "I can't");
return false;
}
/**
* Method engineResolvePublicKey
*
* @param element
* @param BaseURI
* @param storage
* @return null if no {@link PublicKey} could be obtained
* @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
* @inheritDoc
* @param element
* @param BaseURI
* @param storage
*
* @throws KeyResolverException
*/
public X509Certificate engineResolveX509Certificate(
Element element, String BaseURI, StorageResolver storage)
throws KeyResolverException {
try {
if (this._x509childNodes == null) {
boolean weCanResolve = this.engineCanResolve(element, BaseURI,
storage);
if (!weCanResolve || (this._x509childNodes == null)) {
return null;
}
}
if (storage == null) {
Object exArgs[] = { Constants._TAG_X509SKI };
KeyResolverException ex =
new KeyResolverException("KeyResolver.needStorageResolver",
exArgs);
if (log.isLoggable(java.util.logging.Level.INFO)) log.log(java.util.logging.Level.INFO, "", ex);
throw ex;
}
this._x509childObject =
new XMLX509SKI[this._x509childNodes.length];
for (int i = 0; i < this._x509childNodes.length; i++) {
this._x509childObject[i] =
new XMLX509SKI(this._x509childNodes[i], BaseURI);
}
while (storage.hasNext()) {
X509Certificate cert = storage.next();
XMLX509SKI certSKI = new XMLX509SKI(element.getOwnerDocument(), cert);
for (int i = 0; i < this._x509childObject.length; i++) {
if (certSKI.equals(this._x509childObject[i])) {
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "Return PublicKey from "
+ cert.getSubjectDN().getName());
return cert;
}
}
}
} catch (XMLSecurityException ex) {
throw new KeyResolverException("empty", ex);
}
return null;
}
/**
* Method engineResolveSecretKey
* @inheritDoc
* @param element
* @param BaseURI
* @param storage
*
*/
public javax.crypto.SecretKey engineResolveSecretKey(
Element element, String BaseURI, StorageResolver storage)
{
return null;
}
}
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