eu.europa.ec.markt.dss.validation.cades.CAdESCertificateSource.java Source code

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Here is the source code for eu.europa.ec.markt.dss.validation.cades.CAdESCertificateSource.java

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/*
 * DSS - Digital Signature Services
 *
 * Copyright (C) 2011 European Commission, Directorate-General Internal Market and Services (DG MARKT), B-1049 Bruxelles/Brussel
 *
 * Developed by: 2011 ARHS Developments S.A. (rue Nicolas Bov 2B, L-1253 Luxembourg) http://www.arhs-developments.com
 *
 * This file is part of the "DSS - Digital Signature Services" project.
 *
 * "DSS - Digital Signature Services" 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.
 *
 * DSS 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
 * "DSS - Digital Signature Services".  If not, see <http://www.gnu.org/licenses/>.
 */

package eu.europa.ec.markt.dss.validation.cades;

import eu.europa.ec.markt.dss.validation.ades.SignatureCertificateSource;

import java.security.cert.CertificateParsingException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.logging.Logger;

import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.x509.X509CertificateStructure;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.cms.CMSException;
import org.bouncycastle.cms.CMSSignedData;
import org.bouncycastle.cms.SignerId;
import org.bouncycastle.cms.SignerInformation;
import org.bouncycastle.jce.provider.X509CertificateObject;
import org.bouncycastle.util.StoreException;

/**
 * 
 * CertificateSource that retrieve items from a CAdES Signature
 * 
 *
 * @version $Revision: 1867 $ - $Date: 2013-04-08 13:44:56 +0200 (Mon, 08 Apr 2013) $
 */

public class CAdESCertificateSource extends SignatureCertificateSource {

    private static final Logger LOG = Logger.getLogger(CAdESCertificateSource.class.getName());

    private CMSSignedData cmsSignedData;
    private SignerId signerId;
    private boolean onlyExtended = true;

    /**
     * The default constructor for CAdESCertificateSource.
     * 
     * @param encodedCMS
     * @throws CMSException
     */
    public CAdESCertificateSource(CMSSignedData cms) {
        this(cms, ((SignerInformation) cms.getSignerInfos().getSigners().iterator().next()).getSID(), false);
    }

    /**
     * The default constructor for CAdESCertificateSource.
     * 
     * @param encodedCMS
     * @throws CMSException
     */
    public CAdESCertificateSource(CMSSignedData cms, SignerId id, boolean onlyExtended) {
        this.cmsSignedData = cms;
        this.signerId = id;
        this.onlyExtended = onlyExtended;
    }

    @Override
    @SuppressWarnings("unchecked")
    public List<X509Certificate> getCertificates() {
        List<X509Certificate> list = new ArrayList<X509Certificate>();

        try {

            if (!onlyExtended) {
                LOG.fine(cmsSignedData.getCertificates().getMatches(null).size() + " certificate in collection");
                for (X509CertificateHolder ch : (Collection<X509CertificateHolder>) cmsSignedData.getCertificates()
                        .getMatches(null)) {
                    X509Certificate c = new X509CertificateObject(ch.toASN1Structure());
                    LOG.fine("Certificate for subject " + c.getSubjectX500Principal());
                    if (!list.contains(c)) {
                        list.add(c);
                    }
                }
            }

            // Add certificates in CAdES-XL certificate-values inside SignerInfo attribute if present
            SignerInformation si = cmsSignedData.getSignerInfos().get(signerId);
            if (si != null && si.getUnsignedAttributes() != null
                    && si.getUnsignedAttributes().get(PKCSObjectIdentifiers.id_aa_ets_certValues) != null) {

                DERSequence seq = (DERSequence) si.getUnsignedAttributes()
                        .get(PKCSObjectIdentifiers.id_aa_ets_certValues).getAttrValues().getObjectAt(0);

                for (int i = 0; i < seq.size(); i++) {
                    X509CertificateStructure cs = X509CertificateStructure.getInstance(seq.getObjectAt(i));
                    X509Certificate c = new X509CertificateObject(cs);
                    if (!list.contains(c)) {
                        list.add(c);
                    }
                }
            }
        } catch (CertificateParsingException e) {
            throw new RuntimeException(e);
        } catch (StoreException e) {
            throw new RuntimeException(e);
        }

        return list;
    }
}