eu.europa.esig.dss.asic.cades.signature.manifest.AbstractManifestBuilder Maven / Gradle / Ivy

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/**
 * 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.asic.cades.signature.manifest;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Text;

import eu.europa.esig.dss.DomUtils;
import eu.europa.esig.dss.asic.common.definition.ASiCAttribute;
import eu.europa.esig.dss.asic.common.definition.ASiCElement;
import eu.europa.esig.dss.asic.common.definition.ASiCNamespace;
import eu.europa.esig.dss.definition.xmldsig.XMLDSigAttribute;
import eu.europa.esig.dss.definition.xmldsig.XMLDSigElement;
import eu.europa.esig.dss.definition.xmldsig.XMLDSigNamespace;
import eu.europa.esig.dss.enumerations.DigestAlgorithm;
import eu.europa.esig.dss.model.DSSDocument;
import eu.europa.esig.dss.enumerations.MimeType;
import eu.europa.esig.dss.spi.DSSUtils;

/**
 * The abstract class to build a Manifest for ASiC with CAdES
 */
public abstract class AbstractManifestBuilder {

	/**
	 * Default constructor
	 */
	protected AbstractManifestBuilder() {
	}

	/**
	 * Adds a {@code } element
	 *
	 * @param documentDom {@link Document} to add the SigReference to
	 * @param asicManifestDom {@link Element} containing an asicManifestDom to incorporate the SigReference within
	 * @param uri {@link String} uri to the signature document within the container
	 * @param mimeType {@link MimeType} of the signature document
	 */
	protected void addSigReference(final Document documentDom, final Element asicManifestDom,
								   String uri, MimeType mimeType) {
		final Element sigReferenceDom = DomUtils.addElement(documentDom, asicManifestDom, ASiCNamespace.NS, ASiCElement.SIG_REFERENCE);
		sigReferenceDom.setAttribute(ASiCAttribute.URI.getAttributeName(), DSSUtils.encodeURI(uri));
		sigReferenceDom.setAttribute(ASiCAttribute.MIME_TYPE.getAttributeName(), mimeType.getMimeTypeString());
	}

	/**
	 * Adds a {@code } element
	 *
	 * @param documentDom {@link Document} to add the DataObjectReference to
	 * @param asicManifestDom {@link Element} containing an asicManifestDom to incorporate
	 *                                          the DataObjectReference within
	 * @param document {@link DSSDocument} to refer
	 * @param digestAlgorithm {@link DigestAlgorithm} to use for digest calculation
	 * @return {@link Element}
	 */
	protected Element addDataObjectReference(final Document documentDom, final Element asicManifestDom,
											 DSSDocument document, DigestAlgorithm digestAlgorithm) {
		final Element dataObjectReferenceDom = DomUtils.addElement(documentDom, asicManifestDom, ASiCNamespace.NS, ASiCElement.DATA_OBJECT_REFERENCE);
		
		dataObjectReferenceDom.setAttribute(ASiCAttribute.URI.getAttributeName(), DSSUtils.encodeURI(document.getName()));

		MimeType mimeType = document.getMimeType();
		if (mimeType != null) {
			dataObjectReferenceDom.setAttribute(ASiCAttribute.MIME_TYPE.getAttributeName(), mimeType.getMimeTypeString());
		}

		final Element digestMethodDom = DomUtils.addElement(documentDom, dataObjectReferenceDom, XMLDSigNamespace.NS, XMLDSigElement.DIGEST_METHOD);
		digestMethodDom.setAttribute(XMLDSigAttribute.ALGORITHM.getAttributeName(), digestAlgorithm.getUri());

		final Element digestValueDom = DomUtils.addElement(documentDom, dataObjectReferenceDom, XMLDSigNamespace.NS, XMLDSigElement.DIGEST_VALUE);
		final Text textNode = documentDom.createTextNode(document.getDigest(digestAlgorithm));
		digestValueDom.appendChild(textNode);
		
		return dataObjectReferenceDom;
	}

}