    001    /*
    002     * Licensed to the Apache Software Foundation (ASF) under one or more
    003     * contributor license agreements.  See the NOTICE file distributed with
    004     * this work for additional information regarding copyright ownership.
    005     * The ASF licenses this file to You under the Apache License, Version 2.0
    006     * (the "License"); you may not use this file except in compliance with
    007     * the License.  You may obtain a copy of the License at
    008     *
    009     *      http://www.apache.org/licenses/LICENSE-2.0
    010     *
    011     * Unless required by applicable law or agreed to in writing, software
    012     * distributed under the License is distributed on an "AS IS" BASIS,
    013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014     * See the License for the specific language governing permissions and
    015     * limitations under the License.
    016     */
    017
    018    package org.apache.commons.net.ftp;
    019
    020    import java.security.cert.CertificateException;
    021    import java.security.cert.X509Certificate;
    022
    023    import javax.net.ssl.TrustManager;
    024    import javax.net.ssl.X509TrustManager;
    025
    026    /**
    027     * Custom {@link TrustManager} implementation.
    028     *
    029     * @version $Id: FTPSTrustManager.java 962837 2010-07-10 12:52:24Z sebb $
    030     * @since 2.0
    031     */
    032    public class FTPSTrustManager implements X509TrustManager
    033    {
    034        private static final X509Certificate[] EMPTY_X509CERTIFICATE_ARRAY = new X509Certificate[]{};
    035
    036        /**
    037         * No-op
    038         */
    039        public void checkClientTrusted(X509Certificate[] certificates, String authType)
    040        {
    041            return;
    042        }
    043
    044        public void checkServerTrusted(X509Certificate[] certificates, String authType) throws CertificateException
    045        {
    046            for (int i = 0; i < certificates.length; ++i)
    047            {
    048                certificates[i].checkValidity();
    049            }
    050        }
    051
    052        public X509Certificate[] getAcceptedIssuers()
    053        {
    054            return EMPTY_X509CERTIFICATE_ARRAY;
    055        }
    056    }