--- /dev/null
+# gRPC over QUIC
+
+The Go language implementation of gRPC over QUIC.
+
+* gRPC-Go + QUIC-Go
+ * https://github.com/grpc/grpc-go
+ * https://github.com/lucas-clemente/quic-go
+* Improved 'github.com/gfanton/grpc-quic'
+
+## Prerequisites
+
+- **[Go][]**: any one of the **three latest major** [releases][go-releases].
+
+## Installation
+
+With [Go module][] support (Go 1.11+), simply add the following import
+
+```go
+import "github.com/sssgun/grpc-quic"
+```
+
+## Usage
+* gRPC-Go + QUIC-Go
+ * https://github.com/grpc/grpc-go/tree/master/examples/helloworld
+ * https://github.com/lucas-clemente/quic-go/tree/master/example
+
+### As a server
+See the example server.
+
+### As a client
+See the example client.
\ No newline at end of file
--- /dev/null
+package main
+
+import (
+ "context"
+ "crypto/rand"
+ "crypto/rsa"
+ "crypto/tls"
+ "crypto/x509"
+ "encoding/pem"
+ "log"
+ "math/big"
+ "net"
+ "os"
+ "os/signal"
+ "syscall"
+ "time"
+
+ "github.com/lucas-clemente/quic-go"
+ qnet "github.com/sssgun/grpc-quic"
+ pb "github.com/sssgun/grpc-quic/examples/helloworld/helloworld"
+ "google.golang.org/grpc"
+)
+
+const (
+ addr = "localhost:4242"
+ defaultName = "world"
+)
+
+// server is used to implement hello.GreeterServer.
+type server struct {
+ pb.UnimplementedGreeterServer
+}
+
+// SayHello implements hello.GreeterServer
+func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
+ log.Printf("Received: %v", in.GetName())
+ return &pb.HelloReply{Message: "Hello " + in.GetName()}, nil
+}
+
+func main() {
+ signalChan := make(chan os.Signal, 1)
+ signal.Notify(signalChan,
+ syscall.SIGHUP,
+ syscall.SIGINT,
+ syscall.SIGTERM,
+ syscall.SIGQUIT)
+
+ go func() {
+ err := echoServer()
+ if err != nil {
+ log.Printf("failed to Echo Server. %s", err.Error())
+ return
+ }
+ }()
+
+ go func() {
+ err := echoQuicServer()
+ if err != nil {
+ log.Printf("failed to Echo QUIC Server. %s", err.Error())
+ return
+ }
+ }()
+
+ if err := echoClient(); err != nil {
+ log.Printf("failed to Client. %s", err.Error())
+ return
+ }
+
+ if err := echoQuicClient(); err != nil {
+ log.Printf("failed to QUIC Client. %s", err.Error())
+ return
+ }
+
+ exitChan := make(chan int)
+ go func() {
+ for {
+ s := <-signalChan
+ switch s {
+ // kill -SIGHUP XXXX
+ case syscall.SIGHUP:
+ log.Println("hungup")
+ exitChan <- 0
+
+ // kill -SIGINT XXXX or Ctrl+c
+ case syscall.SIGINT:
+ log.Println("Warikomi")
+ exitChan <- 0
+
+ // kill -SIGTERM XXXX
+ case syscall.SIGTERM:
+ log.Println("force stop")
+ exitChan <- 0
+
+ // kill -SIGQUIT XXXX
+ case syscall.SIGQUIT:
+ log.Println("stop and core dump")
+ exitChan <- 0
+
+ default:
+ log.Println("Unknown signal.")
+ exitChan <- 1
+ }
+ }
+ }()
+
+ log.Println("awaiting signal")
+ code := <-exitChan
+ os.Exit(code)
+}
+
+func echoServer() error {
+ log.Println("starting echo server")
+
+ lis, err := net.Listen("tcp", addr)
+ if err != nil {
+ log.Printf("Server: failed to listen. %s", err.Error())
+ return err
+ }
+
+ s := grpc.NewServer()
+ pb.RegisterGreeterServer(s, &server{})
+ log.Printf("Server: listening at %s", lis.Addr().String())
+ if err := s.Serve(lis); err != nil {
+ log.Printf("Server: failed to serve. %s", err.Error())
+ return err
+ }
+
+ log.Println("stopping echo server")
+ return nil
+}
+
+func echoQuicServer() error {
+ log.Println("starting echo quic server")
+
+ tlsConf, err := generateTLSConfig(false)
+ if err != nil {
+ log.Printf("QuicServer: failed to generateTLSConfig. %s", err.Error())
+ return err
+ }
+
+ ql, err := quic.ListenAddr(addr, tlsConf, nil)
+ if err != nil {
+ log.Printf("QuicServer: failed to ListenAddr. %s", err.Error())
+ return err
+ }
+ listener := qnet.Listen(ql)
+
+ s := grpc.NewServer()
+ pb.RegisterGreeterServer(s, &server{})
+ log.Printf("QuicServer: listening at %v", listener.Addr())
+
+ if err := s.Serve(listener); err != nil {
+ log.Printf("QuicServer: failed to serve. %v", err)
+ return err
+ }
+
+ log.Println("stopping echo quic server")
+ return nil
+}
+
+func echoClient() error {
+ // Set up a connection to the server.
+ conn, err := grpc.Dial(addr, grpc.WithInsecure(), grpc.WithBlock())
+ if err != nil {
+ log.Printf("Client: did not connect. %s", err.Error())
+ return err
+ }
+ defer func(conn *grpc.ClientConn) {
+ err := conn.Close()
+ if err != nil {
+ log.Printf("Client: failed to close - grpc.Dial. %s", err.Error())
+ }
+ }(conn)
+ c := pb.NewGreeterClient(conn)
+
+ // Contact the server and print out its response.
+ name := defaultName
+ ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+ defer cancel()
+ r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
+ if err != nil {
+ log.Printf("Client: could not greet. %s", err.Error())
+ return err
+ }
+ log.Printf("Greeting: %s", r.GetMessage())
+
+ return nil
+}
+
+func echoQuicClient() error {
+ tlsConf := &tls.Config{
+ InsecureSkipVerify: true,
+ NextProtos: []string{"quic-echo-example"},
+ }
+
+ creds := qnet.NewCredentials(tlsConf)
+
+ dialer := qnet.NewQuicDialer(tlsConf)
+ grpcOpts := []grpc.DialOption{
+ grpc.WithContextDialer(dialer),
+ grpc.WithTransportCredentials(creds),
+ }
+
+ conn, err := grpc.Dial(addr, grpcOpts...)
+ if err != nil {
+ log.Printf("QuicClient: failed to grpc.Dial. %s", err.Error())
+ return err
+ }
+ defer func(conn *grpc.ClientConn) {
+ err := conn.Close()
+ if err != nil {
+ log.Printf("QuicClient: failed to close - grpc.Dial. %s", err.Error())
+ }
+ }(conn)
+
+ c := pb.NewGreeterClient(conn)
+ name := defaultName
+ ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+ defer cancel()
+
+ r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})
+ if err != nil {
+ log.Printf("QuicClient: could not greet. %v", err)
+ return err
+ }
+ log.Printf("QuicClient: Greeting=%s", r.GetMessage())
+
+ return nil
+}
+
+func generateTLSConfig(isFile bool) (*tls.Config, error) {
+ if isFile {
+ cert, err := tls.LoadX509KeyPair(
+ "/etc/letsencrypt/live/pangyo-dev01.kro.kr/fullchain.pem",
+ "/etc/letsencrypt/live/pangyo-dev01.kro.kr/privkey.pem")
+ if err != nil {
+ log.Printf("failed to tls.LoadX509KeyPair. %s", err.Error())
+ return nil, err
+ }
+ return &tls.Config{Certificates: []tls.Certificate{cert}}, nil
+ } else {
+ key, err := rsa.GenerateKey(rand.Reader, 1024)
+ if err != nil {
+ log.Printf("failed to rsa.GenerateKey. %s", err.Error())
+ return nil, err
+ }
+ template := x509.Certificate{SerialNumber: big.NewInt(1)}
+ certDER, err := x509.CreateCertificate(rand.Reader, &template, &template, &key.PublicKey, key)
+ if err != nil {
+ log.Printf("failed to x509.CreateCertificate. %s", err.Error())
+ return nil, err
+ }
+ keyPEM := pem.EncodeToMemory(&pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(key)})
+ certPEM := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certDER})
+
+ tlsCert, err := tls.X509KeyPair(certPEM, keyPEM)
+ if err != nil {
+ log.Printf("failed to tls.X509KeyPair. %s", err.Error())
+ return nil, err
+ }
+
+ return &tls.Config{
+ Certificates: []tls.Certificate{tlsCert},
+ NextProtos: []string{"quic-echo-example"},
+ }, nil
+ }
+}
--- /dev/null
+// Copyright 2015 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.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// protoc-gen-go v1.25.0
+// protoc v3.14.0
+// source: examples/helloworld/helloworld/helloworld.proto
+
+package helloworld
+
+import (
+ proto "github.com/golang/protobuf/proto"
+ protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+ protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+ reflect "reflect"
+ sync "sync"
+)
+
+const (
+ // Verify that this generated code is sufficiently up-to-date.
+ _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+ // Verify that runtime/protoimpl is sufficiently up-to-date.
+ _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+// The request message containing the user's name.
+type HelloRequest struct {
+ state protoimpl.MessageState
+ sizeCache protoimpl.SizeCache
+ unknownFields protoimpl.UnknownFields
+
+ Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *HelloRequest) Reset() {
+ *x = HelloRequest{}
+ if protoimpl.UnsafeEnabled {
+ mi := &file_examples_helloworld_helloworld_helloworld_proto_msgTypes[0]
+ ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+ ms.StoreMessageInfo(mi)
+ }
+}
+
+func (x *HelloRequest) String() string {
+ return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HelloRequest) ProtoMessage() {}
+
+func (x *HelloRequest) ProtoReflect() protoreflect.Message {
+ mi := &file_examples_helloworld_helloworld_helloworld_proto_msgTypes[0]
+ if protoimpl.UnsafeEnabled && x != nil {
+ ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+ if ms.LoadMessageInfo() == nil {
+ ms.StoreMessageInfo(mi)
+ }
+ return ms
+ }
+ return mi.MessageOf(x)
+}
+
+// Deprecated: Use HelloRequest.ProtoReflect.Descriptor instead.
+func (*HelloRequest) Descriptor() ([]byte, []int) {
+ return file_examples_helloworld_helloworld_helloworld_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *HelloRequest) GetName() string {
+ if x != nil {
+ return x.Name
+ }
+ return ""
+}
+
+// The response message containing the greetings
+type HelloReply struct {
+ state protoimpl.MessageState
+ sizeCache protoimpl.SizeCache
+ unknownFields protoimpl.UnknownFields
+
+ Message string `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
+}
+
+func (x *HelloReply) Reset() {
+ *x = HelloReply{}
+ if protoimpl.UnsafeEnabled {
+ mi := &file_examples_helloworld_helloworld_helloworld_proto_msgTypes[1]
+ ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+ ms.StoreMessageInfo(mi)
+ }
+}
+
+func (x *HelloReply) String() string {
+ return protoimpl.X.MessageStringOf(x)
+}
+
+func (*HelloReply) ProtoMessage() {}
+
+func (x *HelloReply) ProtoReflect() protoreflect.Message {
+ mi := &file_examples_helloworld_helloworld_helloworld_proto_msgTypes[1]
+ if protoimpl.UnsafeEnabled && x != nil {
+ ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+ if ms.LoadMessageInfo() == nil {
+ ms.StoreMessageInfo(mi)
+ }
+ return ms
+ }
+ return mi.MessageOf(x)
+}
+
+// Deprecated: Use HelloReply.ProtoReflect.Descriptor instead.
+func (*HelloReply) Descriptor() ([]byte, []int) {
+ return file_examples_helloworld_helloworld_helloworld_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *HelloReply) GetMessage() string {
+ if x != nil {
+ return x.Message
+ }
+ return ""
+}
+
+var File_examples_helloworld_helloworld_helloworld_proto protoreflect.FileDescriptor
+
+var file_examples_helloworld_helloworld_helloworld_proto_rawDesc = []byte{
+ 0x0a, 0x2f, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f,
+ 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64,
+ 0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+ 0x6f, 0x12, 0x0a, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x22, 0x22, 0x0a,
+ 0x0c, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a,
+ 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d,
+ 0x65, 0x22, 0x26, 0x0a, 0x0a, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x12,
+ 0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09,
+ 0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x32, 0x49, 0x0a, 0x07, 0x47, 0x72, 0x65,
+ 0x65, 0x74, 0x65, 0x72, 0x12, 0x3e, 0x0a, 0x08, 0x53, 0x61, 0x79, 0x48, 0x65, 0x6c, 0x6c, 0x6f,
+ 0x12, 0x18, 0x2e, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x2e, 0x48, 0x65,
+ 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x68, 0x65, 0x6c,
+ 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x2e, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x70,
+ 0x6c, 0x79, 0x22, 0x00, 0x42, 0x67, 0x0a, 0x1b, 0x69, 0x6f, 0x2e, 0x67, 0x72, 0x70, 0x63, 0x2e,
+ 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2e, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f,
+ 0x72, 0x6c, 0x64, 0x42, 0x0f, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x57, 0x6f, 0x72, 0x6c, 0x64, 0x50,
+ 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x35, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67,
+ 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x67, 0x72, 0x70, 0x63, 0x2f, 0x65,
+ 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x73, 0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72,
+ 0x6c, 0x64, 0x2f, 0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x62, 0x06, 0x70,
+ 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+ file_examples_helloworld_helloworld_helloworld_proto_rawDescOnce sync.Once
+ file_examples_helloworld_helloworld_helloworld_proto_rawDescData = file_examples_helloworld_helloworld_helloworld_proto_rawDesc
+)
+
+func file_examples_helloworld_helloworld_helloworld_proto_rawDescGZIP() []byte {
+ file_examples_helloworld_helloworld_helloworld_proto_rawDescOnce.Do(func() {
+ file_examples_helloworld_helloworld_helloworld_proto_rawDescData = protoimpl.X.CompressGZIP(file_examples_helloworld_helloworld_helloworld_proto_rawDescData)
+ })
+ return file_examples_helloworld_helloworld_helloworld_proto_rawDescData
+}
+
+var file_examples_helloworld_helloworld_helloworld_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_examples_helloworld_helloworld_helloworld_proto_goTypes = []interface{}{
+ (*HelloRequest)(nil), // 0: helloworld.HelloRequest
+ (*HelloReply)(nil), // 1: helloworld.HelloReply
+}
+var file_examples_helloworld_helloworld_helloworld_proto_depIdxs = []int32{
+ 0, // 0: helloworld.Greeter.SayHello:input_type -> helloworld.HelloRequest
+ 1, // 1: helloworld.Greeter.SayHello:output_type -> helloworld.HelloReply
+ 1, // [1:2] is the sub-list for method output_type
+ 0, // [0:1] is the sub-list for method input_type
+ 0, // [0:0] is the sub-list for extension type_name
+ 0, // [0:0] is the sub-list for extension extendee
+ 0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_examples_helloworld_helloworld_helloworld_proto_init() }
+func file_examples_helloworld_helloworld_helloworld_proto_init() {
+ if File_examples_helloworld_helloworld_helloworld_proto != nil {
+ return
+ }
+ if !protoimpl.UnsafeEnabled {
+ file_examples_helloworld_helloworld_helloworld_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+ switch v := v.(*HelloRequest); i {
+ case 0:
+ return &v.state
+ case 1:
+ return &v.sizeCache
+ case 2:
+ return &v.unknownFields
+ default:
+ return nil
+ }
+ }
+ file_examples_helloworld_helloworld_helloworld_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+ switch v := v.(*HelloReply); i {
+ case 0:
+ return &v.state
+ case 1:
+ return &v.sizeCache
+ case 2:
+ return &v.unknownFields
+ default:
+ return nil
+ }
+ }
+ }
+ type x struct{}
+ out := protoimpl.TypeBuilder{
+ File: protoimpl.DescBuilder{
+ GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+ RawDescriptor: file_examples_helloworld_helloworld_helloworld_proto_rawDesc,
+ NumEnums: 0,
+ NumMessages: 2,
+ NumExtensions: 0,
+ NumServices: 1,
+ },
+ GoTypes: file_examples_helloworld_helloworld_helloworld_proto_goTypes,
+ DependencyIndexes: file_examples_helloworld_helloworld_helloworld_proto_depIdxs,
+ MessageInfos: file_examples_helloworld_helloworld_helloworld_proto_msgTypes,
+ }.Build()
+ File_examples_helloworld_helloworld_helloworld_proto = out.File
+ file_examples_helloworld_helloworld_helloworld_proto_rawDesc = nil
+ file_examples_helloworld_helloworld_helloworld_proto_goTypes = nil
+ file_examples_helloworld_helloworld_helloworld_proto_depIdxs = nil
+}
--- /dev/null
+// Copyright 2015 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.
+
+syntax = "proto3";
+
+option go_package = "github.com/sssgun/grpc-quic/examples/helloworld/helloworld";
+option java_multiple_files = true;
+option java_package = "io.grpc.examples.helloworld";
+option java_outer_classname = "HelloWorldProto";
+
+package helloworld;
+
+// The greeting service definition.
+service Greeter {
+ // Sends a greeting
+ rpc SayHello (HelloRequest) returns (HelloReply) {}
+}
+
+// The request message containing the user's name.
+message HelloRequest {
+ string name = 1;
+}
+
+// The response message containing the greetings
+message HelloReply {
+ string message = 1;
+}
--- /dev/null
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.1.0
+// - protoc v3.14.0
+// source: examples/helloworld/helloworld/helloworld.proto
+
+package helloworld
+
+import (
+ context "context"
+ grpc "google.golang.org/grpc"
+ codes "google.golang.org/grpc/codes"
+ status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+// Requires gRPC-Go v1.32.0 or later.
+const _ = grpc.SupportPackageIsVersion7
+
+// GreeterClient is the client API for Greeter service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type GreeterClient interface {
+ // Sends a greeting
+ SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
+}
+
+type greeterClient struct {
+ cc grpc.ClientConnInterface
+}
+
+func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
+ return &greeterClient{cc}
+}
+
+func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error) {
+ out := new(HelloReply)
+ err := c.cc.Invoke(ctx, "/helloworld.Greeter/SayHello", in, out, opts...)
+ if err != nil {
+ return nil, err
+ }
+ return out, nil
+}
+
+// GreeterServer is the server API for Greeter service.
+// All implementations must embed UnimplementedGreeterServer
+// for forward compatibility
+type GreeterServer interface {
+ // Sends a greeting
+ SayHello(context.Context, *HelloRequest) (*HelloReply, error)
+ mustEmbedUnimplementedGreeterServer()
+}
+
+// UnimplementedGreeterServer must be embedded to have forward compatible implementations.
+type UnimplementedGreeterServer struct {
+}
+
+func (UnimplementedGreeterServer) SayHello(context.Context, *HelloRequest) (*HelloReply, error) {
+ return nil, status.Errorf(codes.Unimplemented, "method SayHello not implemented")
+}
+func (UnimplementedGreeterServer) mustEmbedUnimplementedGreeterServer() {}
+
+// UnsafeGreeterServer may be embedded to opt out of forward compatibility for this service.
+// Use of this interface is not recommended, as added methods to GreeterServer will
+// result in compilation errors.
+type UnsafeGreeterServer interface {
+ mustEmbedUnimplementedGreeterServer()
+}
+
+func RegisterGreeterServer(s grpc.ServiceRegistrar, srv GreeterServer) {
+ s.RegisterService(&Greeter_ServiceDesc, srv)
+}
+
+func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+ in := new(HelloRequest)
+ if err := dec(in); err != nil {
+ return nil, err
+ }
+ if interceptor == nil {
+ return srv.(GreeterServer).SayHello(ctx, in)
+ }
+ info := &grpc.UnaryServerInfo{
+ Server: srv,
+ FullMethod: "/helloworld.Greeter/SayHello",
+ }
+ handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+ return srv.(GreeterServer).SayHello(ctx, req.(*HelloRequest))
+ }
+ return interceptor(ctx, in, info, handler)
+}
+
+// Greeter_ServiceDesc is the grpc.ServiceDesc for Greeter service.
+// It's only intended for direct use with grpc.RegisterService,
+// and not to be introspected or modified (even as a copy)
+var Greeter_ServiceDesc = grpc.ServiceDesc{
+ ServiceName: "helloworld.Greeter",
+ HandlerType: (*GreeterServer)(nil),
+ Methods: []grpc.MethodDesc{
+ {
+ MethodName: "SayHello",
+ Handler: _Greeter_SayHello_Handler,
+ },
+ },
+ Streams: []grpc.StreamDesc{},
+ Metadata: "examples/helloworld/helloworld/helloworld.proto",
+}
--- /dev/null
+module github.com/sssgun/grpc-quic
+
+go 1.16
+
+require (
+ github.com/golang/protobuf v1.5.2
+ github.com/lucas-clemente/quic-go v0.21.0
+ google.golang.org/grpc v1.38.0
+ google.golang.org/protobuf v1.26.0
+)
--- /dev/null
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--- /dev/null
+package grpcquic
+
+import (
+ "context"
+ "crypto/tls"
+ "net"
+ "time"
+
+ quic "github.com/lucas-clemente/quic-go"
+)
+
+///////////////////////////////////////////////////////////////////////////////
+// Connection
+
+var _ net.Conn = (*Conn)(nil)
+
+type Conn struct {
+ sess quic.Session
+ stream quic.Stream
+}
+
+func NewConn(sess quic.Session) (net.Conn, error) {
+ stream, err := sess.OpenStreamSync(context.Background())
+ if err != nil {
+ return nil, err
+ }
+
+ return &Conn{sess, stream}, nil
+}
+
+// Read reads data from the connection.
+// Read can be made to time out and return an Error with Timeout() == true
+// after a fixed time limit; see SetDeadline and SetReadDeadline.
+func (c *Conn) Read(b []byte) (n int, err error) {
+ return c.stream.Read(b)
+}
+
+// Write writes data to the connection.
+// Write can be made to time out and return an Error with Timeout() == true
+// after a fixed time limit; see SetDeadline and SetWriteDeadline.
+func (c *Conn) Write(b []byte) (n int, err error) {
+ return c.stream.Write(b)
+}
+
+// Close closes the connection.
+// Any blocked Read or Write operations will be unblocked and return errors.
+func (c *Conn) Close() error {
+ // @TODO: log this
+ c.stream.Close()
+
+ return c.sess.CloseWithError(0, "")
+}
+
+// LocalAddr returns the local network address.
+func (c *Conn) LocalAddr() net.Addr {
+ return c.sess.LocalAddr()
+}
+
+// RemoteAddr returns the remote network address.
+func (c *Conn) RemoteAddr() net.Addr {
+ return c.sess.RemoteAddr()
+}
+
+// SetDeadline sets the read and write deadlines associated
+// with the connection. It is equivalent to calling both
+// SetReadDeadline and SetWriteDeadline.
+//
+// A deadline is an absolute time after which I/O operations
+// fail with a timeout (see type Error) instead of
+// blocking. The deadline applies to all future and pending
+// I/O, not just the immediately following call to Read or
+// Write. After a deadline has been exceeded, the connection
+// can be refreshed by setting a deadline in the future.
+//
+// An idle timeout can be implemented by repeatedly extending
+// the deadline after successful Read or Write calls.
+//
+// A zero value for t means I/O operations will not time out.
+func (c *Conn) SetDeadline(t time.Time) error {
+ return c.stream.SetDeadline(t)
+}
+
+// SetReadDeadline sets the deadline for future Read calls
+// and any currently-blocked Read call.
+// A zero value for t means Read will not time out.
+func (c *Conn) SetReadDeadline(t time.Time) error {
+ return c.stream.SetReadDeadline(t)
+
+}
+
+// SetWriteDeadline sets the deadline for future Write calls
+// and any currently-blocked Write call.
+// Even if write times out, it may return n > 0, indicating that
+// some of the data was successfully written.
+// A zero value for t means Write will not time out.
+func (c *Conn) SetWriteDeadline(t time.Time) error {
+ return c.stream.SetWriteDeadline(t)
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Listener
+
+var _ net.Listener = (*Listener)(nil)
+
+type Listener struct {
+ ql quic.Listener
+}
+
+func Listen(ql quic.Listener) net.Listener {
+ return &Listener{ql}
+}
+
+// Accept waits for and returns the next connection to the listener.
+func (l *Listener) Accept() (net.Conn, error) {
+ sess, err := l.ql.Accept(context.Background())
+ if err != nil {
+ return nil, err
+ }
+
+ stream, err := sess.AcceptStream(context.Background())
+ if err != nil {
+ return nil, err
+ }
+
+ return &Conn{sess, stream}, nil
+}
+
+// Close closes the listener.
+// Any blocked Accept operations will be unblocked and return errors.
+func (l *Listener) Close() error {
+ return l.ql.Close()
+}
+
+// Addr returns the listener's network address.
+func (l *Listener) Addr() net.Addr {
+ return l.ql.Addr()
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Dialer
+
+var quicConfig = &quic.Config{
+ // MaxReceiveStreamFlowControlWindow: 3 * (1 << 20), // 3 MB
+ // MaxReceiveConnectionFlowControlWindow: 4.5 * (1 << 20), // 4.5 MB
+ // Versions: []quic.VersionNumber{101},
+ // AcceptCookie: func(clientAddr net.Addr, cookie *quic.Cookie) bool {
+ // // TODO(#6): require source address validation when under load
+ // return true
+ // },
+ KeepAlive: true,
+}
+
+func NewPacketConn(addr string) (net.PacketConn, error) {
+ // create a packet conn for outgoing connections
+ udpAddr, err := net.ResolveUDPAddr("udp", addr)
+ if err != nil {
+ return nil, err
+ }
+
+ return net.ListenUDP("udp", udpAddr)
+}
+
+func NewQuicDialer(tlsConf *tls.Config) func(context.Context, string) (net.Conn, error) {
+ return func(ctx context.Context, target string) (net.Conn, error) {
+ sess, err := quic.DialAddrContext(ctx, target, tlsConf, quicConfig)
+ if err != nil {
+ return nil, err
+ }
+
+ return NewConn(sess)
+ }
+}
--- /dev/null
+package grpcquic
+
+import (
+ "context"
+ "crypto/tls"
+ "net"
+
+ "google.golang.org/grpc/credentials"
+)
+
+var _ credentials.AuthInfo = (*Info)(nil)
+
+// Info contains the auth information
+type Info struct {
+ conn *Conn
+}
+
+func NewInfo(c *Conn) *Info {
+ return &Info{c}
+}
+
+// AuthType returns the type of Info as a string.
+func (i *Info) AuthType() string {
+ return "quic-tls"
+}
+
+func (i *Info) Conn() net.Conn {
+ return i.conn
+}
+
+var _ credentials.TransportCredentials = (*Credentials)(nil)
+
+type Credentials struct {
+ tlsConfig *tls.Config
+ isQuicConnection bool
+ serverName string
+
+ grpcCreds credentials.TransportCredentials
+}
+
+func NewCredentials(tlsConfig *tls.Config) credentials.TransportCredentials {
+ grpcCreds := credentials.NewTLS(tlsConfig)
+ return &Credentials{
+ grpcCreds: grpcCreds,
+ tlsConfig: tlsConfig,
+ }
+}
+
+// ClientHandshake does the authentication handshake specified by the corresponding
+// authentication protocol on rawConn for clients. It returns the authenticated
+// connection and the corresponding auth information about the connection.
+// Implementations must use the provided context to implement timely cancellation.
+// gRPC will try to reconnect if the error returned is a temporary error
+// (io.EOF, context.DeadlineExceeded or err.Temporary() == true).
+// If the returned error is a wrapper error, implementations should make sure that
+// the error implements Temporary() to have the correct retry behaviors.
+//
+// If the returned net.Conn is closed, it MUST close the net.Conn provided.
+func (pt *Credentials) ClientHandshake(ctx context.Context, authority string, conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
+ if c, ok := conn.(*Conn); ok {
+ pt.isQuicConnection = true
+ return conn, NewInfo(c), nil
+ }
+
+ return pt.grpcCreds.ClientHandshake(ctx, authority, conn)
+}
+
+// ServerHandshake does the authentication handshake for servers. It returns
+// the authenticated connection and the corresponding auth information about
+// the connection.
+//
+// If the returned net.Conn is closed, it MUST close the net.Conn provided.
+func (pt *Credentials) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
+ if c, ok := conn.(*Conn); ok {
+ pt.isQuicConnection = true
+ ainfo := NewInfo(c)
+ return conn, ainfo, nil
+ }
+
+ return pt.grpcCreds.ServerHandshake(conn)
+}
+
+// Info provides the ProtocolInfo of this Credentials.
+func (pt *Credentials) Info() credentials.ProtocolInfo {
+ if pt.isQuicConnection {
+ return credentials.ProtocolInfo{
+ // ProtocolVersion is the gRPC wire protocol version.
+ ProtocolVersion: "/quic/1.0.0",
+ // SecurityProtocol is the security protocol in use.
+ SecurityProtocol: "quic-tls",
+ // SecurityVersion is the security protocol version.
+ //SecurityVersion: "1.2.0",
+ // ServerName is the user-configured server name.
+ ServerName: pt.serverName,
+ }
+ }
+
+ return pt.grpcCreds.Info()
+}
+
+// Clone makes a copy of this Credentials.
+func (pt *Credentials) Clone() credentials.TransportCredentials {
+ return &Credentials{
+ tlsConfig: pt.tlsConfig.Clone(),
+ grpcCreds: pt.grpcCreds.Clone(),
+ }
+}
+
+// OverrideServerName overrides the server name used to verify the hostname on the returned certificates from the server.
+// gRPC internals also use it to override the virtual hosting name if it is set.
+// It must be called before dialing. Currently, this is only used by grpclb.
+func (pt *Credentials) OverrideServerName(name string) error {
+ pt.serverName = name
+ return pt.grpcCreds.OverrideServerName(name)
+}
projects / grpc-quic.git / commitdiff