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package main
import (
"context"
"flag"
"log"
"net"
"net/http"
"os"
"os/signal"
"syscall"
"connectrpc.com/connect"
"golang.org/x/net/http2"
"golang.org/x/net/http2/h2c"
"google.golang.org/grpc"
pb "northwest.io/muxstr/api/nostr/v1"
"northwest.io/muxstr/api/nostr/v1/nostrv1connect"
"northwest.io/muxstr/internal/auth"
"northwest.io/muxstr/internal/config"
connecthandler "northwest.io/muxstr/internal/handler/connect"
grpchandler "northwest.io/muxstr/internal/handler/grpc"
wshandler "northwest.io/muxstr/internal/handler/websocket"
"northwest.io/muxstr/internal/metrics"
"northwest.io/muxstr/internal/ratelimit"
"northwest.io/muxstr/internal/storage"
"northwest.io/muxstr/internal/subscription"
)
func main() {
configFile := flag.String("config", "", "Path to config file (optional)")
flag.Parse()
cfg, err := config.Load(*configFile)
if err != nil {
log.Fatalf("failed to load config: %v", err)
}
store, err := storage.New(cfg.Database.Path)
if err != nil {
log.Fatalf("failed to create storage: %v", err)
}
defer store.Close()
subManager := subscription.NewManager()
grpcHandler := grpchandler.NewServer(store)
grpcHandler.SetSubscriptionManager(subManager)
connectHandler := connecthandler.NewHandler(grpcHandler)
mux := http.NewServeMux()
path, handler := nostrv1connect.NewNostrRelayHandler(connectHandler, connect.WithInterceptors())
mux.Handle(path, handler)
var unaryInterceptors []grpc.UnaryServerInterceptor
var streamInterceptors []grpc.StreamServerInterceptor
var m *metrics.Metrics
if cfg.Metrics.Enabled {
m = metrics.New(cfg.Metrics.ToMetrics())
unaryInterceptors = append(unaryInterceptors, metrics.UnaryServerInterceptor(m))
streamInterceptors = append(streamInterceptors, metrics.StreamServerInterceptor(m))
mux.Handle("/metrics", m.PrometheusHandler())
mux.Handle("/dashboard", m.DashboardHandler())
}
if cfg.Auth.Read.Enabled || cfg.Auth.Write.Enabled {
authOpts := &auth.InterceptorOptions{
Read: cfg.Auth.Read,
Write: cfg.Auth.Write,
TimestampWindow: cfg.Auth.TimestampWindow,
SkipMethods: cfg.Auth.SkipMethods,
}
unaryInterceptors = append(unaryInterceptors, auth.NostrUnaryInterceptor(authOpts))
streamInterceptors = append(streamInterceptors, auth.NostrStreamInterceptor(authOpts))
}
if cfg.RateLimit.Enabled {
limiter := ratelimit.New(cfg.RateLimit.ToRateLimiter())
unaryInterceptors = append(unaryInterceptors, ratelimit.UnaryInterceptor(limiter))
streamInterceptors = append(streamInterceptors, ratelimit.StreamInterceptor(limiter))
}
var serverOpts []grpc.ServerOption
if len(unaryInterceptors) > 0 {
serverOpts = append(serverOpts, grpc.ChainUnaryInterceptor(unaryInterceptors...))
}
if len(streamInterceptors) > 0 {
serverOpts = append(serverOpts, grpc.ChainStreamInterceptor(streamInterceptors...))
}
wsHandler := wshandler.NewHandler(store, subManager)
if m != nil {
wsHandler.SetMetrics(m)
}
var grpcDisplay, httpDisplay, wsDisplay string
if cfg.Server.PublicURL != "" {
grpcDisplay = cfg.Server.PublicURL + ":443"
httpDisplay = "https://" + cfg.Server.PublicURL
wsDisplay = "wss://" + cfg.Server.PublicURL
} else {
grpcDisplay = cfg.Server.GrpcAddr
httpDisplay = "http://" + cfg.Server.HttpAddr
wsDisplay = "ws://" + cfg.Server.HttpAddr
}
wsHandler.SetIndexData(grpcDisplay, httpDisplay, wsDisplay)
mux.Handle("/", wsHandler)
grpcLis, err := net.Listen("tcp", cfg.Server.GrpcAddr)
if err != nil {
log.Fatalf("failed to listen on gRPC port: %v", err)
}
grpcServer := grpc.NewServer(serverOpts...)
pb.RegisterNostrRelayServer(grpcServer, grpcHandler)
httpServer := &http.Server{
Addr: cfg.Server.HttpAddr,
Handler: h2c.NewHandler(mux, &http2.Server{}),
ReadTimeout: cfg.Server.ReadTimeout,
WriteTimeout: cfg.Server.WriteTimeout,
}
log.Printf("gRPC server listening on %s", cfg.Server.GrpcAddr)
log.Printf("HTTP server listening on %s", cfg.Server.HttpAddr)
log.Printf(" - Connect (gRPC-Web) at %s/nostr.v1.NostrRelay/*", cfg.Server.HttpAddr)
log.Printf(" - WebSocket (Nostr) at %s/", cfg.Server.HttpAddr)
if cfg.Metrics.Enabled {
log.Printf(" - Metrics dashboard at %s/dashboard", cfg.Server.HttpAddr)
log.Printf(" - Prometheus metrics at %s/metrics", cfg.Server.HttpAddr)
}
log.Printf("Database: %s", cfg.Database.Path)
if cfg.Auth.Read.Enabled || cfg.Auth.Write.Enabled {
log.Printf("Auth: enabled (read=%v write=%v)", cfg.Auth.Read.Enabled, cfg.Auth.Write.Enabled)
}
if cfg.RateLimit.Enabled {
log.Printf("Rate limiting: enabled")
}
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt, syscall.SIGTERM)
go func() {
<-sigChan
log.Println("Shutting down...")
grpcServer.GracefulStop()
httpServer.Shutdown(context.Background())
}()
go func() {
if err := grpcServer.Serve(grpcLis); err != nil {
log.Fatalf("gRPC server failed: %v", err)
}
}()
if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatalf("WebSocket server failed: %v", err)
}
}
|
