/
main.go
119 lines (98 loc) · 2.87 KB
/
main.go
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//go:build windows && amd64
package main
import (
"context"
"crypto/tls"
"crypto/x509"
"errors"
"github.com/TrueGameover/transaq-grpc/src/client"
server2 "github.com/TrueGameover/transaq-grpc/src/grpc/server"
"github.com/TrueGameover/transaq-grpc/src/queue"
"github.com/TrueGameover/transaq-grpc/src/server"
"github.com/TrueGameover/transaq-grpc/src/transaq"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"golang.org/x/sys/windows"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"net"
"os"
"os/signal"
"time"
)
const PoolSize = 10000
func main() {
appLogger := configureLogger()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
fixedQueue := queue.NewFixedQueue[string](ctx, PoolSize)
transaqHandler := transaq.NewTransaqHandler(appLogger, fixedQueue)
clientExists := client.NewClientExists()
err := transaqHandler.Init(ctx, clientExists)
if err != nil {
panic(err)
}
defer func() {
if transaqHandler.IsInited() {
transaqHandler.Release()
}
}()
lis, err := net.Listen("tcp", "0.0.0.0:50051")
if err != nil {
appLogger.Panic().Err(err)
}
tlsOptions, err := setupTlsConfiguration()
if err != nil {
appLogger.Warn().Err(err).Msg("Tls initialization failed. Skipping...")
tlsOptions = []grpc.ServerOption{}
}
srv := grpc.NewServer(tlsOptions...)
SetupCloseHandler(srv, appLogger, cancel)
server2.RegisterConnectServiceServer(srv, server.NewConnectService(transaqHandler, fixedQueue, clientExists, appLogger))
appLogger.Info().Msg("Press CRTL+C to stop the ConnectService...")
err = srv.Serve(lis)
if err != nil {
appLogger.Panic().Err(err)
}
}
func SetupCloseHandler(srv *grpc.Server, localLogger *zerolog.Logger, appCancelFunc context.CancelFunc) {
c := make(chan os.Signal)
signal.Notify(c, os.Interrupt, windows.SIGTERM)
go func() {
<-c
localLogger.Warn().Msg("Ctrl+C pressed in Terminal")
srv.GracefulStop()
appCancelFunc()
}()
}
func configureLogger() *zerolog.Logger {
zeroLogger := log.With().Timestamp().Logger()
zeroLogger = zeroLogger.Output(
zerolog.MultiLevelWriter(
zerolog.ConsoleWriter{Out: os.Stdout, TimeFormat: time.RFC3339}),
)
return &zeroLogger
}
func setupTlsConfiguration() ([]grpc.ServerOption, error) {
var opts []grpc.ServerOption
rootCa, err := os.ReadFile("certs/rootCA.crt")
if err != nil {
return nil, err
}
caPool := x509.NewCertPool()
if !caPool.AppendCertsFromPEM(rootCa) {
return nil, errors.New("cannot append rootCA to cert pool")
}
serverCert, err := tls.LoadX509KeyPair("certs/transaqGrpcServiceServer.crt", "certs/transaqGrpcServiceServer.key")
if err != nil {
return nil, err
}
tlsConfig := tls.Config{
Certificates: []tls.Certificate{serverCert},
ClientCAs: caPool,
ClientAuth: tls.RequireAndVerifyClientCert,
MinVersion: tls.VersionTLS13,
}
opts = append(opts, grpc.Creds(credentials.NewTLS(&tlsConfig)))
return opts, nil
}