/*
* 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.XMLX509Certificate;
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;
/**
* Resolves Certificates which are directly contained inside a
* <CODE>ds:X509Certificate</CODE> Element.
*
* @author $Author: raul $
*/
public class X509CertificateResolver extends KeyResolverSpi {
/** {@link java.util.logging} logging facility */
static java.util.logging.Logger log =
java.util.logging.Logger.getLogger(X509CertificateResolver.class.getName());
/** Field _dsaKeyElement */
Element[] _x509CertKeyElements = 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._x509CertKeyElements = XMLUtils.selectDsNodes(element.getFirstChild(),
Constants._TAG_X509CERTIFICATE);
if ((this._x509CertKeyElements != null)
&& (this._x509CertKeyElements.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;
}
/** Field _x509certObject[] */
XMLX509Certificate _x509certObject[] = null;
/**
* Method engineResolvePublicKey
* @inheritDoc
* @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
* @inheritDoc
* @param element
* @param BaseURI
* @param storage
*
* @throws KeyResolverException
*/
public X509Certificate engineResolveX509Certificate(
Element element, String BaseURI, StorageResolver storage)
throws KeyResolverException {
try {
if ((this._x509CertKeyElements == null)
|| (this._x509CertKeyElements.length == 0)) {
boolean weCanResolve = this.engineCanResolve(element, BaseURI,
storage);
if (!weCanResolve || (this._x509CertKeyElements == null)
|| (this._x509CertKeyElements.length == 0)) {
return null;
}
}
this._x509certObject =
new XMLX509Certificate[this._x509CertKeyElements.length];
// populate Object array
for (int i = 0; i < this._x509CertKeyElements.length; i++) {
this._x509certObject[i] =
new XMLX509Certificate(this._x509CertKeyElements[i]
, BaseURI);
}
for (int i = 0; i < this._x509certObject.length; i++) {
X509Certificate cert = this._x509certObject[i].getX509Certificate();
if (cert != null) {
return cert;
}
}
return null;
} catch (XMLSecurityException ex) {
if (log.isLoggable(java.util.logging.Level.FINE)) log.log(java.util.logging.Level.FINE, "XMLSecurityException", ex);
throw new KeyResolverException("generic.EmptyMessage", ex);
}
}
/**
* Method engineResolveSecretKey
* @inheritDoc
* @param element
* @param BaseURI
* @param storage
*
*/
public javax.crypto.SecretKey engineResolveSecretKey(
Element element, String BaseURI, StorageResolver storage)
{
return null;
}
}