eu.europa.esig.dss.spi.validation.scope.DetachedTimestampScopeFinder Maven / Gradle / Ivy
/**
* 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.spi.validation.scope;
import eu.europa.esig.dss.model.DSSDocument;
import eu.europa.esig.dss.model.DigestDocument;
import eu.europa.esig.dss.model.scope.SignatureScope;
import eu.europa.esig.dss.spi.x509.tsp.TimestampToken;
import eu.europa.esig.dss.utils.Utils;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* This class finds a timestamp scope for a detached timestamp
*
*/
public class DetachedTimestampScopeFinder extends AbstractSignatureScopeFinder implements TimestampScopeFinder {
/** The data used to for message-imprint computation of a timestamp token */
protected DSSDocument timestampedData;
/**
* Default constructor instantiating object with null timestamped data document
*/
public DetachedTimestampScopeFinder() {
// empty
}
/**
* Sets the timestamped data
*
* @param timestampedData {@link DSSDocument}
*/
public void setTimestampedData(DSSDocument timestampedData) {
this.timestampedData = timestampedData;
}
@Override
public List findTimestampScope(TimestampToken timestampToken) {
if (timestampToken.isMessageImprintDataIntact()) {
return getTimestampSignatureScopeForDocument(timestampedData);
}
return Collections.emptyList();
}
/**
* Returns a timestamped {@code SignatureScope} for the given document
*
* @param document {@link DSSDocument} to get a signature scope for
* @return a list of {@link SignatureScope}s
*/
protected List getTimestampSignatureScopeForDocument(DSSDocument document) {
String documentName = document.getName();
if (document instanceof DigestDocument) {
return Arrays.asList(new DigestSignatureScope(Utils.isStringNotEmpty(documentName) ? documentName : "Digest document",
document));
} else {
return Arrays.asList(new FullSignatureScope(Utils.isStringNotEmpty(documentName) ? documentName : "Full document",
document));
}
}
}