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4a5b317016
Opened two ports (30010 and 30011 by default) that handles HTTP(S) GET requests. the HTTP request is redirected to the corresponding HTTPS site, whereas the HTTPS request is redirected to a site that supports web WHOIS. The GCLB currently exposes port 80, but not port 443 on its TCP proxy load balancer (see https://cloud.google.com/load-balancing/docs/choosing-load-balancer). As a result, the HTTP traffic has to be routed by the HTTP load balancer, which requires a separate HTTP health check (as opposed to the TCP health check that the TCP proxy LB uses). This CL also added support for HTTP health check. There is not a strong case for adding an end-to-end test for WebWhoisProtocolsModule (like those for EppProtocolModule, etc) as it just assembles standard HTTP codecs used for an HTTP server, plus the WebWhoisRedirectHandler, which is tested. The end-to-end test would just be testing if the Netty provided HTTP handlers correctly parse raw HTTP messages. Sever other small improvement is also included: [1] Use setInt other than set when setting content length in HTTP headers. I don't think it is necessary, but it is nevertheless a better practice to use a more specialized setter. [2] Do not write metrics when running locally. [3] Rename the qualifier @EppCertificates to @ServerSertificate as it now provides the certificate used in HTTPS traffic as well. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=206944843
76 lines
2.7 KiB
Java
76 lines
2.7 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;
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import com.google.common.collect.ImmutableList;
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import dagger.Module;
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import dagger.Provides;
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import dagger.multibindings.IntoSet;
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import google.registry.proxy.Protocol.FrontendProtocol;
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import google.registry.proxy.handler.HealthCheckHandler;
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import io.netty.channel.ChannelHandler;
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import io.netty.handler.codec.FixedLengthFrameDecoder;
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import javax.inject.Provider;
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import javax.inject.Qualifier;
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import javax.inject.Singleton;
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/**
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* Module that provides a {@link FrontendProtocol} used for GCP load balancer health checking.
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*
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* <p>The load balancer sends health checking messages to the GCE instances to assess whether they
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* are ready to receive traffic. No relay channel needs to be established for this protocol.
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*/
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@Module
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public class HealthCheckProtocolModule {
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/** Dagger qualifier to provide health check protocol related handlers and other bindings. */
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@Qualifier
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@interface HealthCheckProtocol {}
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private static final String PROTOCOL_NAME = "health_check";
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@Singleton
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@Provides
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@IntoSet
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static FrontendProtocol provideProtocol(
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@HealthCheckProtocol int healthCheckPort,
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@HealthCheckProtocol ImmutableList<Provider<? extends ChannelHandler>> handlerProviders) {
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return Protocol.frontendBuilder()
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.name(PROTOCOL_NAME)
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.port(healthCheckPort)
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.hasBackend(false)
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.handlerProviders(handlerProviders)
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.build();
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}
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@Provides
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@HealthCheckProtocol
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static ImmutableList<Provider<? extends ChannelHandler>> provideHandlerProviders(
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Provider<FixedLengthFrameDecoder> fixedLengthFrameDecoderProvider,
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Provider<HealthCheckHandler> healthCheckHandlerProvider) {
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return ImmutableList.of(fixedLengthFrameDecoderProvider, healthCheckHandlerProvider);
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}
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@Provides
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static FixedLengthFrameDecoder provideFixedLengthFrameDecoder(ProxyConfig config) {
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return new FixedLengthFrameDecoder(config.healthCheck.checkRequest.length());
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}
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@Provides
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static HealthCheckHandler provideHealthCheckHandler(ProxyConfig config) {
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return new HealthCheckHandler(
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config.healthCheck.checkRequest, config.healthCheck.checkResponse);
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}
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}
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