CRLDistributionPoints.java

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 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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package org.openspcoop2.utils.certificate;

import java.util.ArrayList;
import java.util.List;

import org.bouncycastle.asn1.x509.DistributionPoint;
import org.bouncycastle.asn1.x509.Extensions;
import org.bouncycastle.asn1.x509.GeneralName;
import org.bouncycastle.asn1.x509.GeneralNames;

/**
 * CRLDistributionPoints
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class CRLDistributionPoints {

    private List<CRLDistributionPoint> distributionPoints = new ArrayList<>();

    
    public List<CRLDistributionPoint> getCRLDistributionPoints() {
        return this.distributionPoints;
    }
    public CRLDistributionPoint getCRLDistributionPoint(int index) {
        return this.distributionPoints!=null && (this.distributionPoints.size()>index) ? this.distributionPoints.get(index) : null;
    }
    
    public static CRLDistributionPoints getCRLDistributionPoints(byte[]encoded) {
        
        org.bouncycastle.asn1.x509.Certificate c =org.bouncycastle.asn1.x509.Certificate.getInstance(encoded);
        Extensions exts = c.getTBSCertificate().getExtensions();
        if (exts != null){
            org.bouncycastle.asn1.x509.CRLDistPoint crlDistPoint = org.bouncycastle.asn1.x509.CRLDistPoint.fromExtensions(exts);
            if(crlDistPoint!=null) {
                return readCRLDistributionPoints(crlDistPoint);
                
                /**CRLDistributionPoints crls = readCRLDistributionPoints(crlDistPoint);
                
                System.out.println("======================");
                //System.out.println("CRLDistributionPoints '"+crlDistPoint.toString()+"'");
                for (int i = 0; i < crlDistPoint.getDistributionPoints().length; i++) {
                    DistributionPoint dt = crlDistPoint.getDistributionPoints()[i];
                    System.out.println("Issuer '"+dt.getCRLIssuer()+"'");
                    System.out.println("Point '"+dt.getDistributionPoint()+"'");
                    System.out.println("Reasons '"+dt.getReasons()+"'");
                }
                System.out.println("======================");
                
                return crls;*/
            }
        }
        return null;
        
    }
    private static CRLDistributionPoints readCRLDistributionPoints(org.bouncycastle.asn1.x509.CRLDistPoint crlDistPoint) {
        CRLDistributionPoints crls = null;
        if(crlDistPoint.getDistributionPoints()!=null && crlDistPoint.getDistributionPoints().length>0) {
            
            crls = new CRLDistributionPoints();
            
            for (int i = 0; i < crlDistPoint.getDistributionPoints().length; i++) {
                DistributionPoint dt = crlDistPoint.getDistributionPoints()[i];
                if(dt!=null) {
                    
                    CRLDistributionPoint crl = readCRLDistributionPoint(dt);
                    
                    crls.distributionPoints.add(crl);
                }
            }
        }
        return crls;
    }
    private static CRLDistributionPoint readCRLDistributionPoint(DistributionPoint dt) {
        CRLDistributionPoint crl = new CRLDistributionPoint();
        
        if(dt.getCRLIssuer()!=null && dt.getCRLIssuer().getNames()!=null && dt.getCRLIssuer().getNames().length>0) {
            for (GeneralName gn : dt.getCRLIssuer().getNames()) {
                crl.crlIssuers.add(gn);
            }
        }
        if(dt.getReasons()!=null) {
            crl.reasonFlags = dt.getReasons();
        }
        if(dt.getDistributionPoint()!=null) {
            setCRLDistributionPoint(crl, dt);
        }
        return crl;
    }
    private static void setCRLDistributionPoint(CRLDistributionPoint crl, DistributionPoint dt) {
        crl.distributionPointName = dt.getDistributionPoint();
        if(dt.getDistributionPoint().getName() instanceof GeneralNames) {
            GeneralNames gns = (GeneralNames) dt.getDistributionPoint().getName();
            if(gns.getNames()!=null && gns.getNames().length>0) {
                for (GeneralName gn : gns.getNames()) {
                    crl.distributionPointNames.add(gn);
                }
            }
        }
    }
}