/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.xades.validation;
import java.security.cert.X509CRL;
import java.util.ArrayList;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import eu.europa.esig.dss.DSSUtils;
import eu.europa.esig.dss.DomUtils;
import eu.europa.esig.dss.x509.crl.OfflineCRLSource;
import eu.europa.esig.dss.xades.XPathQueryHolder;
/**
* Retrieves CRL values from an XAdES (-XL) signature.
*/
public class XAdESCRLSource extends OfflineCRLSource {
/**
* The default constructor for XAdESCRLSource.
*
* @param signatureElement
* {@code Element} that contains an XML signature
* @param xPathQueryHolder
* adapted {@code XPathQueryHolder}
*/
public XAdESCRLSource(final Element signatureElement, final XPathQueryHolder xPathQueryHolder) {
if (signatureElement == null) {
throw new NullPointerException("signatureElement");
}
if (xPathQueryHolder == null) {
throw new NullPointerException("xPathQueryHolder");
}
x509CRLList = new ArrayList<X509CRL>();
addCRLs(signatureElement, xPathQueryHolder.XPATH_CRL_VALUES_ENCAPSULATED_CRL);
addCRLs(signatureElement, xPathQueryHolder.XPATH_TSVD_ENCAPSULATED_CRL_VALUES);
}
private void addCRLs(Element signatureElement, final String xPathQuery) {
final NodeList nodeList = DomUtils.getNodeList(signatureElement, xPathQuery);
for (int ii = 0; ii < nodeList.getLength(); ii++) {
final Element certEl = (Element) nodeList.item(ii);
final String textContent = certEl.getTextContent();
final X509CRL x509CRL = DSSUtils.loadCRLBase64Encoded(textContent);
if (!x509CRLList.contains(x509CRL)) {
x509CRLList.add(x509CRL);
}
}
}
}