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The RabbitMQ Java client library allows Java applications to interface with RabbitMQ.

There is a newer version: 5.22.0

// Copyright (c) 2007-2023 Broadcom. All Rights Reserved. The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].


package com.rabbitmq.client;

import org.slf4j.LoggerFactory;

import javax.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;

/**
 * Convenience class providing a default implementation of {@link javax.net.ssl.X509TrustManager}.
 * Trusts every single certificate presented to it. This implementation does not perform peer
 * verification and provides no protection against Man-in-the-Middle (MITM) attacks and therefore
 * only suitable for some development and QA environments.
 */
public class TrustEverythingTrustManager implements X509TrustManager {

    public TrustEverythingTrustManager() {
        LoggerFactory.getLogger(TrustEverythingTrustManager.class).warn(
            "SECURITY ALERT: this trust manager trusts every certificate, effectively disabling peer verification. " +
            "This is convenient for local development but offers no protection against man-in-the-middle attacks. " +
            "Please see https://www.rabbitmq.com/ssl.html to learn more about peer certificate verification."
        );
    }

    /**
     * Doesn't even bother looking at its arguments, simply returns,
     * which makes the check succeed.
     */
    @Override
    public void checkClientTrusted(X509Certificate[] chain, String authType) {
        // Do nothing.
    }

    /**
     * Doesn't even bother looking at its arguments, simply returns,
     * which makes the check succeed.
     */
    @Override
    public void checkServerTrusted(X509Certificate[] chain, String authType) {
        // Do nothing.
    }

    /**
     * Always returns an empty array of X509Certificates.
     */
    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return new X509Certificate[0];
    }
}