org.cesecore.certificates.certificate.certextensions.standard.SubjectAltNames Maven / Gradle / Ivy

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 *  CESeCore: CE Security Core                                           *
 *                                                                       *
 *  This software 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 any later version.                    *
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 *  See terms of license at gnu.org.                                     *
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package org.cesecore.certificates.certificate.certextensions.standard;

import java.security.PublicKey;

import org.apache.log4j.Logger;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.GeneralNames;
import org.cesecore.certificates.ca.CA;
import org.cesecore.certificates.ca.internal.CertificateValidity;
import org.cesecore.certificates.certificateprofile.CertificateProfile;
import org.cesecore.certificates.endentity.EndEntityInformation;
import org.cesecore.util.CertTools;

/**
 * Class for standard X509 certificate extension. 
 * See rfc3280 or later for spec of this extension.
 * 
 * @version $Id: SubjectAltNames.java 22092 2015-10-26 13:58:55Z mikekushner $
 */
public class SubjectAltNames extends StandardCertificateExtension {
    private static final long serialVersionUID = 1L;
    private static final Logger log = Logger.getLogger(SubjectAltNames.class);

    @Override
	public void init(final CertificateProfile certProf) {
		super.setOID(Extension.subjectAlternativeName.getId());
		super.setCriticalFlag(certProf.getSubjectAlternativeNameCritical());
	}
    
    @Override
    public ASN1Encodable getValue(final EndEntityInformation subject, final CA ca, final CertificateProfile certProfile,
            final PublicKey userPublicKey, final PublicKey caPublicKey, CertificateValidity val) {
		GeneralNames ret = null;
        String altName = subject.getSubjectAltName(); 
        if(certProfile.getUseSubjectAltNameSubSet()){
        	altName = certProfile.createSubjectAltNameSubSet(altName);
        }
        if ( (altName != null) && (altName.length() > 0) ) {
        	ret = CertTools.getGeneralNamesFromAltName(altName);
        }
		if (ret == null) {
			if (log.isDebugEnabled()) {
				log.debug("No altnames trying to make SubjectAltName extension: "+altName);
			}
		}
		return ret;
	}	
}