JdkAlpnApplicationProtocolNegotiator.java — netty Source File

Source Code

/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.handler.ssl;

import io.netty.buffer.ByteBufAllocator;
import io.netty.handler.ssl.util.BouncyCastleUtil;

import javax.net.ssl.SSLEngine;

/**
 * The {@link JdkApplicationProtocolNegotiator} to use if you need ALPN and are using {@link SslProvider#JDK}.
 *
 * @deprecated use {@link ApplicationProtocolConfig}.
 */
@Deprecated
public final class JdkAlpnApplicationProtocolNegotiator extends JdkBaseApplicationProtocolNegotiator {
    private static final boolean AVAILABLE = Conscrypt.isAvailable() ||
                                             JdkAlpnSslUtils.supportsAlpn() ||
            (BouncyCastleUtil.isBcTlsAvailable() && BouncyCastleAlpnSslUtils.isAlpnSupported());

    private static final SslEngineWrapperFactory ALPN_WRAPPER = AVAILABLE ? new AlpnWrapper() : new FailureWrapper();

    /**
     * Create a new instance.
     * @param protocols The order of iteration determines the preference of support for protocols.
     */
    public JdkAlpnApplicationProtocolNegotiator(Iterable<String> protocols) {
        this(false, protocols);
    }

    /**
     * Create a new instance.
     * @param protocols The order of iteration determines the preference of support for protocols.
     */
    public JdkAlpnApplicationProtocolNegotiator(String... protocols) {
        this(false, protocols);
    }

    /**
     * Create a new instance.
     * @param failIfNoCommonProtocols Fail with a fatal alert if not common protocols are detected.
     * @param protocols The order of iteration determines the preference of support for protocols.
     */
    public JdkAlpnApplicationProtocolNegotiator(boolean failIfNoCommonProtocols, Iterable<String> protocols) {
        this(failIfNoCommonProtocols, failIfNoCommonProtocols, protocols);
    }

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