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alts/src/main/java/io/grpc/alts/AltsServerCredentials.java
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| /* | ||
| * Copyright 2018 The gRPC Authors | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * http://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.grpc.alts; | ||
|
|
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| import io.grpc.Channel; | ||
| import io.grpc.ExperimentalApi; | ||
| import io.grpc.ServerCredentials; | ||
| import io.grpc.Status; | ||
| import io.grpc.alts.internal.AltsProtocolNegotiator; | ||
| import io.grpc.internal.ObjectPool; | ||
| import io.grpc.internal.SharedResourcePool; | ||
| import io.grpc.netty.InternalNettyServerCredentials; | ||
| import io.grpc.netty.InternalProtocolNegotiator; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
|
|
||
| /** | ||
| * gRPC secure server builder used for ALTS. This class adds on the necessary ALTS support to create | ||
| * a production server on Google Cloud Platform. | ||
| */ | ||
| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/7621") | ||
| public final class AltsServerCredentials { | ||
| private static final Logger logger = Logger.getLogger(AltsServerCredentials.class.getName()); | ||
|
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| private AltsServerCredentials() {} | ||
|
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| public static ServerCredentials create() { | ||
| return newBuilder().build(); | ||
| } | ||
|
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| public static Builder newBuilder() { | ||
| return new Builder(); | ||
| } | ||
|
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| @ExperimentalApi("https://github.com/grpc/grpc-java/issues/7621") | ||
| public static final class Builder { | ||
| private ObjectPool<Channel> handshakerChannelPool = | ||
| SharedResourcePool.forResource(HandshakerServiceChannel.SHARED_HANDSHAKER_CHANNEL); | ||
| private boolean enableUntrustedAlts; | ||
|
|
||
| /** | ||
| * Enables untrusted ALTS for testing. If this function is called, we will not check whether | ||
| * ALTS is running on Google Cloud Platform. | ||
| */ | ||
| public Builder enableUntrustedAltsForTesting() { | ||
| enableUntrustedAlts = true; | ||
| return this; | ||
| } | ||
|
|
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| /** Sets a new handshaker service address for testing. */ | ||
| public Builder setHandshakerAddressForTesting(String handshakerAddress) { | ||
| // Instead of using the default shared channel to the handshaker service, create a separate | ||
| // resource to the test address. | ||
| handshakerChannelPool = | ||
| SharedResourcePool.forResource( | ||
| HandshakerServiceChannel.getHandshakerChannelForTesting(handshakerAddress)); | ||
| return this; | ||
| } | ||
|
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| public ServerCredentials build() { | ||
| return InternalNettyServerCredentials.create(buildProtocolNegotiator()); | ||
| } | ||
|
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| InternalProtocolNegotiator.ProtocolNegotiator buildProtocolNegotiator() { | ||
| if (!CheckGcpEnvironment.isOnGcp()) { | ||
| if (enableUntrustedAlts) { | ||
| logger.log( | ||
| Level.WARNING, | ||
| "Untrusted ALTS mode is enabled and we cannot guarantee the trustworthiness of the " | ||
| + "ALTS handshaker service"); | ||
| } else { | ||
| Status status = Status.INTERNAL.withDescription( | ||
| "ALTS is only allowed to run on Google Cloud Platform"); | ||
| return new AltsChannelCredentials.FailingProtocolNegotiator(status); | ||
| } | ||
| } | ||
|
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| return AltsProtocolNegotiator.serverAltsProtocolNegotiator(handshakerChannelPool); | ||
| } | ||
| } | ||
| } |