/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.jmeter.util;

import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.X509TrustManager;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Custom TrustManager ignores all certificate errors
 *
 * TODO: implement conditional checking and logging
 *
 * (Derived from AuthSSLX509TrustManager in HttpClient contrib directory)
 */

public class CustomX509TrustManager implements X509TrustManager
{
    private final X509TrustManager defaultTrustManager;

    private static final Logger log = LoggerFactory.getLogger(CustomX509TrustManager.class);

    public CustomX509TrustManager(final X509TrustManager defaultTrustManager) {
        super();
        if (defaultTrustManager == null) {
            throw new IllegalArgumentException("Trust manager may not be null");
        }
        this.defaultTrustManager = defaultTrustManager;
    }

    /**
     * @see javax.net.ssl.X509TrustManager#checkClientTrusted(X509Certificate[],String)
     */
    @Override
    public void checkClientTrusted(X509Certificate[] certificates, String authType) throws CertificateException {
        if (log.isDebugEnabled() && certificates != null) {
            for (int i = 0; i < certificates.length; i++) {
                X509Certificate cert = certificates[i];
                log.debug(
                        " Client certificate {}:\n"
                        + "  Subject DN: {}\n"
                        + "  Signature Algorithm: {}\n"
                        + "  Valid from: {}\n"
                        + "  Valid until: {}\n"
                        + "  Issuer: {}",
                        (i + 1),
                        cert.getSubjectDN(),
                        cert.getSigAlgName(),
                        cert.getNotBefore(),
                        cert.getNotAfter(),
                        cert.getIssuerDN());
            }
        }
    }

    /**
     * @see javax.net.ssl.X509TrustManager#checkServerTrusted(X509Certificate[],String)
     */
    @Override
    public void checkServerTrusted(X509Certificate[] certificates,String authType) throws CertificateException {
        if (log.isDebugEnabled() && certificates != null) {
            for (int i = 0; i < certificates.length; i++) {
                X509Certificate cert = certificates[i];
                log.debug(
                        " Server certificate {}:\n"
                        + "  Subject DN: {}\n"
                        + "  Signature Algorithm: {}\n"
                        + "  Valid from: {}\n"
                        + "  Valid until: {}\n"
                        + "  Issuer: {}",
                        (i + 1),
                        cert.getSubjectDN(),
                        cert.getSigAlgName(),
                        cert.getNotBefore(),
                        cert.getNotAfter(),
                        cert.getIssuerDN());
            }
        }
    }

    /**
     * @see javax.net.ssl.X509TrustManager#getAcceptedIssuers()
     */
    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return this.defaultTrustManager.getAcceptedIssuers();
    }
}
