/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2017 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf.security;

import com.itextpdf.text.ExceptionConverter;
import java.security.cert.CRL;
import java.security.cert.X509CRL;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collection;

/**
 * An implementation of the CrlClient that handles offline
 * Certificate Revocation Lists.
 * @author Paulo Soares
 */
public class CrlClientOffline implements CrlClient {
	
	/** The CRL as a byte array. */
    private ArrayList<byte[]> crls = new ArrayList<byte[]>();
    
    /**
     * Creates an instance of a CrlClient in case you
     * have a local cache of the Certificate Revocation List.
     * @param crlEncoded	the CRL bytes
     */
    public CrlClientOffline(byte[] crlEncoded) {
        crls.add(crlEncoded);
    }

    /**
     * Creates an instance of a CrlClient in case you
     * have a local cache of the Certificate Revocation List.
     * @param crl	a CRL object
     */
    public CrlClientOffline(CRL crl) {
        try {
            crls.add(((X509CRL)crl).getEncoded());
        }
        catch (Exception ex) {
            throw new ExceptionConverter(ex);
        }
    }
    
    /**
     * Returns the CRL bytes (the parameters are ignored).
     * @see com.itextpdf.text.pdf.security.CrlClient#getEncoded(java.security.cert.X509Certificate, java.lang.String)
     */
    public Collection<byte[]> getEncoded(X509Certificate checkCert, String url) {
        return crls;
    }
    
}
