eu.europa.esig.dss.spi.validation.scope.AbstractSignatureScopeFinder 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.Digest;
import eu.europa.esig.dss.model.DigestDocument;
import eu.europa.esig.dss.model.InMemoryDocument;
import eu.europa.esig.dss.utils.Utils;
import eu.europa.esig.dss.spi.signature.AdvancedSignature;
/**
* The abstract class for {@code SignatureScope} finding
*
*/
public abstract class AbstractSignatureScopeFinder {
/**
* Default constructor instantiating the object with default values
*/
protected AbstractSignatureScopeFinder() {
// empty
}
/**
* Checks if the given signature represents an ASiC-S container
*
* @param advancedSignature {@link AdvancedSignature} to check
* @return TRUE if the signature is ASiC-S, FALSE otherwise
*/
protected boolean isASiCSArchive(AdvancedSignature advancedSignature) {
return Utils.isCollectionNotEmpty(advancedSignature.getContainerContents());
}
/**
* Checks if the given signature represents an ASiC-E container
*
* @param advancedSignature {@link AdvancedSignature} to check
* @return TRUE if the signature is ASiC-E, FALSE otherwise
*/
protected boolean isASiCEArchive(AdvancedSignature advancedSignature) {
return advancedSignature.getManifestFile() != null;
}
/**
* Creates a {@code DSSDocument} from given {@code binaries}
*
* @param binaries {@link Digest} to create an in-memory document instance from
* @return {@link DSSDocument}
*/
protected DSSDocument createInMemoryDocument(byte[] binaries) {
return new InMemoryDocument(binaries);
}
/**
* Creates a {@code DSSDocument} from given {@code digest}
*
* @param digest {@link Digest} to create a digest document instance from
* @return {@link DSSDocument}
*/
protected DSSDocument createDigestDocument(Digest digest) {
if (digest != null && digest.getAlgorithm() != null && digest.getValue() != null) {
return new DigestDocument(digest.getAlgorithm(), Utils.toBase64(digest.getValue()));
}
return null;
}
}