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05f166918f
This is a 'green' Flogger migration CL. Green CLs are intended to be as safe as possible and should be easy to review and submit. No changes should be necessary to the code itself prior to submission, but small changes to BUILD files may be required. Changes within files are completely independent of each other, so this CL can be safely split up for review using tools such as Rosie. For more information, see [] Base CL: 197331037 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=197466715
79 lines
3.1 KiB
Java
79 lines
3.1 KiB
Java
// Copyright 2017 The Nomulus Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.proxy.handler;
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import static com.google.common.base.Preconditions.checkNotNull;
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import static google.registry.proxy.Protocol.PROTOCOL_KEY;
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import com.google.common.flogger.FluentLogger;
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import google.registry.proxy.HttpsRelayProtocolModule.HttpsRelayProtocol;
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import google.registry.proxy.Protocol.BackendProtocol;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelHandler.Sharable;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.embedded.EmbeddedChannel;
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import io.netty.handler.ssl.SslContextBuilder;
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import io.netty.handler.ssl.SslHandler;
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import io.netty.handler.ssl.SslProvider;
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import java.security.cert.X509Certificate;
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import javax.annotation.Nullable;
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import javax.inject.Inject;
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import javax.inject.Singleton;
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import javax.net.ssl.SSLEngine;
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import javax.net.ssl.SSLParameters;
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/**
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* Adds a client side SSL handler to the channel pipeline.
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*
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* <p>This <b>must</b> be the first handler provided for any handler provider list, if it is
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* provided. The type parameter {@code C} is needed so that unit tests can construct this handler
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* that works with {@link EmbeddedChannel};
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*/
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@Singleton
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@Sharable
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public class SslClientInitializer<C extends Channel> extends ChannelInitializer<C> {
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private static final FluentLogger logger = FluentLogger.forEnclosingClass();
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private final SslProvider sslProvider;
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private final X509Certificate[] trustedCertificates;
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@Inject
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SslClientInitializer(
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SslProvider sslProvider, @Nullable @HttpsRelayProtocol X509Certificate... trustCertificates) {
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logger.atInfo().log("Client SSL Provider: %s", sslProvider);
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this.sslProvider = sslProvider;
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this.trustedCertificates = trustCertificates;
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}
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@Override
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protected void initChannel(C channel) throws Exception {
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BackendProtocol protocol = (BackendProtocol) channel.attr(PROTOCOL_KEY).get();
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checkNotNull(protocol, "Protocol is not set for channel: %s", channel);
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SslHandler sslHandler =
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SslContextBuilder.forClient()
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.sslProvider(sslProvider)
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.trustManager(trustedCertificates)
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.build()
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.newHandler(channel.alloc(), protocol.host(), protocol.port());
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// Enable hostname verification.
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SSLEngine sslEngine = sslHandler.engine();
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SSLParameters sslParameters = sslEngine.getSSLParameters();
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sslParameters.setEndpointIdentificationAlgorithm("HTTPS");
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sslEngine.setSSLParameters(sslParameters);
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channel.pipeline().addLast(sslHandler);
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}
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}
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