org.olat.core.util.httpclient.EasyX509TrustManager.java Source code

Introduction

Here is the source code for org.olat.core.util.httpclient.EasyX509TrustManager.java

Source

package org.olat.core.util.httpclient;

/*
 * ==================================================================== Copyright 2002-2004 The Apache Software Foundation Licensed 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.
 * ==================================================================== This software consists of voluntary contributions made by many individuals on behalf of the Apache
 * Software Foundation. For more information on the Apache Software Foundation, please see <http://www.apache.org/>.
 */

import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * <p>
 * EasyX509TrustManager unlike default {@link X509TrustManager} accepts self-signed certificates.
 * </p>
 * <p>
 * This trust manager SHOULD NOT be used for productive systems due to security reasons, unless it is a concious decision and you are perfectly aware of security
 * implications of accepting self-signed certificates
 * </p>
 * 
 * @author <a href="mailto:adrian.sutton@ephox.com">Adrian Sutton</a>
 * @author <a href="mailto:oleg@ural.ru">Oleg Kalnichevski</a>
 *         <p>
 *         DISCLAIMER: HttpClient developers DO NOT actively support this component. The component is provided as a reference material, which may be inappropriate for use
 *         without additional customization.
 *         </p>
 */

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

    /** Log object for this class. */
    private static final Log LOG = LogFactory.getLog(EasyX509TrustManager.class);

    /**
     * Constructor for EasyX509TrustManager.
     */
    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];
    }

    /**
     * @see javax.net.ssl.X509TrustManager#checkClientTrusted(java.security.cert.X509Certificate[], java.lang.String)
     */
    @Override
    public void checkClientTrusted(X509Certificate[] certificates, String authType) throws CertificateException {
        this.standardTrustManager.checkClientTrusted(certificates, authType);
    }

    /**
     * @see javax.net.ssl.X509TrustManager#checkServerTrusted(java.security.cert.X509Certificate[], java.lang.String)
     */
    @Override
    public void checkServerTrusted(X509Certificate[] certificates, String authType) throws CertificateException {
        if ((certificates != null) && LOG.isDebugEnabled()) {
            LOG.debug("Server certificate chain:");
            for (int i = 0; i < certificates.length; i++) {
                LOG.debug("X509Certificate[" + i + "]=" + certificates[i]);
            }
        }
        if (certificates != null) {
            for (int i = 0; i < certificates.length; i++) {
                X509Certificate certificate = certificates[i];
                try {
                    certificate.checkValidity();
                } catch (CertificateException e) {
                    LOG.error(e.toString());
                    throw e;
                }
            }
        } else {
            this.standardTrustManager.checkServerTrusted(certificates, authType);
        }
    }

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