initial: ZeroTier-like P2P mesh VPN server with multi-tenant Web UI

2026-06-17 03:50:23 +08:00
commit ee5f036325
74 changed files with 9517 additions and 0 deletions
--- a/main.go
+++ b/main.go
@@ -0,0 +1,133 @@
+package main
+
+import (
+	"context"
+	"embed"
+	"flag"
+	"io"
+	"io/fs"
+	"log/slog"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"zeromesh/internal/config"
+	"zeromesh/internal/controller"
+	"zeromesh/internal/database"
+	"zeromesh/internal/router"
+)
+
+//go:embed web/dist/index.html web/dist/assets/*
+var webDist embed.FS
+
+func main() {
+	cfgPath := flag.String("config", "config.yaml", "config file path")
+	flag.Parse()
+
+	cfg, err := config.Load(*cfgPath)
+	if err != nil {
+		slog.Error("load config", "err", err)
+		os.Exit(1)
+	}
+
+	logLevel := new(slog.LevelVar)
+	switch cfg.Logging.Level {
+	case "debug":
+		logLevel.Set(slog.LevelDebug)
+	case "warn":
+		logLevel.Set(slog.LevelWarn)
+	case "error":
+		logLevel.Set(slog.LevelError)
+	default:
+		logLevel.Set(slog.LevelInfo)
+	}
+	opts := &slog.HandlerOptions{Level: logLevel}
+	var logHandler slog.Handler
+	if cfg.Logging.Format == "json" {
+		logHandler = slog.NewJSONHandler(os.Stderr, opts)
+	} else {
+		logHandler = slog.NewTextHandler(os.Stderr, opts)
+	}
+	logger := slog.New(logHandler)
+	slog.SetDefault(logger)
+
+	db, err := database.Init(&cfg.Database)
+	if err != nil {
+		slog.Error("init database", "err", err)
+		os.Exit(1)
+	}
+
+	ctr, err := controller.New(cfg, db, logger)
+	if err != nil {
+		slog.Error("init controller", "err", err)
+		os.Exit(1)
+	}
+	if err := ctr.Start(); err != nil {
+		slog.Error("start controller", "err", err)
+		os.Exit(1)
+	}
+
+	gin.SetMode(gin.ReleaseMode)
+	ginEngine := router.Setup(cfg, db)
+
+	webFS, _ := fs.Sub(webDist, "web/dist")
+	// Wrap in a Handler that serves SPA before Gin gets a chance to redirect
+	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		p := r.URL.Path
+		// Serve SPA for root and all non-API paths
+		if p == "/" || p == "/index.html" {
+			w.Header().Set("Content-Type", "text/html; charset=utf-8")
+			data, err := webFS.Open("index.html")
+			if err == nil {
+				http.ServeContent(w, r, "index.html", time.Now(), data.(io.ReadSeeker))
+				return
+			}
+		}
+		if len(p) >= 8 && p[:8] == "/assets/" {
+			assetFS, _ := fs.Sub(webDist, "web/dist/assets")
+			http.StripPrefix("/assets", http.FileServer(http.FS(assetFS))).ServeHTTP(w, r)
+			return
+		}
+		// API routes go to Gin
+		if len(p) >= 4 && p[:4] == "/api" {
+			ginEngine.ServeHTTP(w, r)
+			return
+		}
+		// SPA fallback for all other routes
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		data, err := webFS.Open("index.html")
+		if err == nil {
+			http.ServeContent(w, r, "index.html", time.Now(), data.(io.ReadSeeker))
+			return
+		}
+		ginEngine.ServeHTTP(w, r)
+	})
+
+	srv := &http.Server{
+		Addr:    cfg.Server.Addr(),
+		Handler: handler,
+	}
+
+	go func() {
+		slog.Info("server listening", "addr", srv.Addr)
+		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
+			slog.Error("serve", "err", err)
+		}
+	}()
+
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	slog.Info("shutting down...")
+	ctr.Stop()
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	if err := srv.Shutdown(ctx); err != nil {
+		slog.Error("shutdown", "err", err)
+	}
+}