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/**                                                                         
 *  This file is part of ftp4che.                                            
 *  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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package org.ftp4che.util;

import java.security.*;
import java.security.cert.*;
import javax.net.ssl.*;

public class EasyX509TrustManager implements X509TrustManager {
    private X509TrustManager standardTrustManager = null;

    public EasyX509TrustManager(KeyStore keystore)
            throws NoSuchAlgorithmException, KeyStoreException {
        super();
        TrustManagerFactory factory = TrustManagerFactory
                .getInstance("SunX509");
        factory.init(keystore);
        TrustManager[] trustmanagers = factory.getTrustManagers();
        if (trustmanagers.length == 0) {
            throw new NoSuchAlgorithmException(
                    "SunX509 trust manager not supported");
        }
        this.standardTrustManager = (X509TrustManager) trustmanagers[0];
    }

    public void checkClientTrusted(X509Certificate[] certificates,
            String authType) throws CertificateException {
        this.standardTrustManager.checkClientTrusted(certificates, authType);
    }

    public void checkServerTrusted(X509Certificate[] certificates,
            String authType) throws CertificateException {
        if ((certificates != null) && (certificates.length == 1)) {
            X509Certificate certificate = certificates[0];
            try {
                certificate.checkValidity();
            } catch (CertificateException e) {
            }
        } else {
            this.standardTrustManager
                    .checkServerTrusted(certificates, authType);
        }
    }

    public X509Certificate[] getAcceptedIssuers() {
        return this.standardTrustManager.getAcceptedIssuers();
    }
}