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89 lines
2.9 KiB
Go
89 lines
2.9 KiB
Go
/*
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*
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* Copyright 2018 gRPC authors.
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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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*
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*/
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// This binary can only run on Google Cloud Platform (GCP).
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package main
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import (
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"context"
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"flag"
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"net"
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"strings"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/alts"
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"google.golang.org/grpc/grpclog"
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"google.golang.org/grpc/interop"
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"google.golang.org/grpc/tap"
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testgrpc "google.golang.org/grpc/interop/grpc_testing"
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)
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const (
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udsAddrPrefix = "unix:"
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)
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var (
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hsAddr = flag.String("alts_handshaker_service_address", "", "ALTS handshaker gRPC service address")
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serverAddr = flag.String("server_address", ":8080", "The address on which the server is listening. Only two types of addresses are supported, 'host:port' and 'unix:/path'.")
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logger = grpclog.Component("interop")
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)
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func main() {
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flag.Parse()
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// If the server address starts with `unix:`, then we have a UDS address.
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network := "tcp"
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address := *serverAddr
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if strings.HasPrefix(address, udsAddrPrefix) {
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network = "unix"
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address = strings.TrimPrefix(address, udsAddrPrefix)
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}
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lis, err := net.Listen(network, address)
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if err != nil {
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logger.Fatalf("gRPC Server: failed to start the server at %v: %v", address, err)
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}
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opts := alts.DefaultServerOptions()
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if *hsAddr != "" {
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opts.HandshakerServiceAddress = *hsAddr
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}
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altsTC := alts.NewServerCreds(opts)
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grpcServer := grpc.NewServer(grpc.Creds(altsTC), grpc.InTapHandle(authz))
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testgrpc.RegisterTestServiceServer(grpcServer, interop.NewTestServer())
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grpcServer.Serve(lis)
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}
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// authz shows how to access client information at the server side to perform
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// application-layer authorization checks.
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func authz(ctx context.Context, info *tap.Info) (context.Context, error) {
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authInfo, err := alts.AuthInfoFromContext(ctx)
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if err != nil {
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return nil, err
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}
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// Access all alts.AuthInfo data:
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logger.Infof("authInfo.ApplicationProtocol() = %v", authInfo.ApplicationProtocol())
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logger.Infof("authInfo.RecordProtocol() = %v", authInfo.RecordProtocol())
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logger.Infof("authInfo.SecurityLevel() = %v", authInfo.SecurityLevel())
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logger.Infof("authInfo.PeerServiceAccount() = %v", authInfo.PeerServiceAccount())
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logger.Infof("authInfo.LocalServiceAccount() = %v", authInfo.LocalServiceAccount())
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logger.Infof("authInfo.PeerRPCVersions() = %v", authInfo.PeerRPCVersions())
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logger.Infof("info.FullMethodName = %v", info.FullMethodName)
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return ctx, nil
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}
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