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/*
* 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 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() ||
JettyAlpnSslEngine.isAvailable() ||
BouncyCastle.isAvailable();
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 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 protocols) {
this(failIfNoCommonProtocols, failIfNoCommonProtocols, 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, String... protocols) {
this(failIfNoCommonProtocols, failIfNoCommonProtocols, protocols);
}
/**
* Create a new instance.
* @param clientFailIfNoCommonProtocols Client side fail with a fatal alert if not common protocols are detected.
* @param serverFailIfNoCommonProtocols Server side 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 clientFailIfNoCommonProtocols,
boolean serverFailIfNoCommonProtocols, Iterable protocols) {
this(serverFailIfNoCommonProtocols ? FAIL_SELECTOR_FACTORY : NO_FAIL_SELECTOR_FACTORY,
clientFailIfNoCommonProtocols ? FAIL_SELECTION_LISTENER_FACTORY : NO_FAIL_SELECTION_LISTENER_FACTORY,
protocols);
}
/**
* Create a new instance.
* @param clientFailIfNoCommonProtocols Client side fail with a fatal alert if not common protocols are detected.
* @param serverFailIfNoCommonProtocols Server side 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 clientFailIfNoCommonProtocols,
boolean serverFailIfNoCommonProtocols, String... protocols) {
this(serverFailIfNoCommonProtocols ? FAIL_SELECTOR_FACTORY : NO_FAIL_SELECTOR_FACTORY,
clientFailIfNoCommonProtocols ? FAIL_SELECTION_LISTENER_FACTORY : NO_FAIL_SELECTION_LISTENER_FACTORY,
protocols);
}
/**
* Create a new instance.
* @param selectorFactory The factory which provides classes responsible for selecting the protocol.
* @param listenerFactory The factory which provides to be notified of which protocol was selected.
* @param protocols The order of iteration determines the preference of support for protocols.
*/
public JdkAlpnApplicationProtocolNegotiator(ProtocolSelectorFactory selectorFactory,
ProtocolSelectionListenerFactory listenerFactory, Iterable protocols) {
super(ALPN_WRAPPER, selectorFactory, listenerFactory, protocols);
}
/**
* Create a new instance.
* @param selectorFactory The factory which provides classes responsible for selecting the protocol.
* @param listenerFactory The factory which provides to be notified of which protocol was selected.
* @param protocols The order of iteration determines the preference of support for protocols.
*/
public JdkAlpnApplicationProtocolNegotiator(ProtocolSelectorFactory selectorFactory,
ProtocolSelectionListenerFactory listenerFactory, String... protocols) {
super(ALPN_WRAPPER, selectorFactory, listenerFactory, protocols);
}
private static final class FailureWrapper extends AllocatorAwareSslEngineWrapperFactory {
@Override
public SSLEngine wrapSslEngine(SSLEngine engine, ByteBufAllocator alloc,
JdkApplicationProtocolNegotiator applicationNegotiator, boolean isServer) {
throw new RuntimeException("ALPN unsupported. Is your classpath configured correctly?"
+ " For Conscrypt, add the appropriate Conscrypt JAR to classpath and set the security provider."
+ " For Jetty-ALPN, see "
+ "https://www.eclipse.org/jetty/documentation/current/alpn-chapter.html#alpn-starting");
}
}
private static final class AlpnWrapper extends AllocatorAwareSslEngineWrapperFactory {
@Override
public SSLEngine wrapSslEngine(SSLEngine engine, ByteBufAllocator alloc,
JdkApplicationProtocolNegotiator applicationNegotiator, boolean isServer) {
if (Conscrypt.isEngineSupported(engine)) {
return isServer ? ConscryptAlpnSslEngine.newServerEngine(engine, alloc, applicationNegotiator)
: ConscryptAlpnSslEngine.newClientEngine(engine, alloc, applicationNegotiator);
}
if (BouncyCastle.isInUse(engine)) {
return new BouncyCastleAlpnSslEngine(engine, applicationNegotiator, isServer);
}
// ALPN support was recently backported to Java8 as
// https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8230977.
// Because of this lets not do a Java version runtime check but just depend on if the required methods are
// present
if (JdkAlpnSslUtils.supportsAlpn()) {
return new JdkAlpnSslEngine(engine, applicationNegotiator, isServer);
}
if (JettyAlpnSslEngine.isAvailable()) {
return isServer ? JettyAlpnSslEngine.newServerEngine(engine, applicationNegotiator)
: JettyAlpnSslEngine.newClientEngine(engine, applicationNegotiator);
}
throw new UnsupportedOperationException("ALPN not supported. Unable to wrap SSLEngine of type '"
+ engine.getClass().getName() + "')");
}
}
static boolean isAlpnSupported() {
return AVAILABLE;
}
}
