Add authentication server, dev CLI, Docker multi-service setup, and cross-platform improvements

server/cmd/octo-cdn/main.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	"lunar-tear/server/internal/service"
+
+	"golang.org/x/net/http2"
+	"golang.org/x/net/http2/h2c"
+)
+
+func main() {
+	listen := flag.String("listen", "0.0.0.0:8080", "local bind address (host:port)")
+	publicAddr := flag.String("public-addr", "127.0.0.1:8080", "externally-reachable host:port used for list.bin URL rewriting")
+	assetsDir := flag.String("assets-dir", ".", "root directory containing the assets/ tree")
+	flag.Parse()
+
+	// Build resourcesBaseURL from public-addr (must be exactly 43 chars to fit in list.bin protobuf).
+	prefix := "http://" + *publicAddr + "/"
+	padLen := 43 - len(prefix)
+	resourcesBaseURL := ""
+	if padLen < 1 {
+		log.Printf("[config] public-addr too long for 43-char resource URL; list.bin will be served unchanged")
+	} else {
+		resourcesBaseURL = prefix + strings.Repeat("r", padLen)
+	}
+
+	octoServer := service.NewOctoHTTPServer(resourcesBaseURL, *assetsDir)
+	h2s := &http2.Server{}
+	handler := h2c.NewHandler(octoServer.Handler(), h2s)
+
+	srv := &http.Server{
+		Addr:    *listen,
+		Handler: handler,
+	}
+	http2.ConfigureServer(srv, h2s)
+
+	// Resolve actual listen address for logging (useful when port is 0).
+	lis, err := net.Listen("tcp", *listen)
+	if err != nil {
+		log.Fatalf("failed to listen on %s: %v", *listen, err)
+	}
+	log.Printf("Octo CDN listening on %s (HTTP/1.1 + h2c)", lis.Addr())
+	log.Printf("public address: %s", *publicAddr)
+	if *assetsDir != "." {
+		log.Printf("assets directory: %s", *assetsDir)
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+
+	go func() {
+		if err := srv.Serve(lis); err != nil && err != http.ErrServerClosed {
+			fmt.Fprintf(os.Stderr, "HTTP server error: %v\n", err)
+			os.Exit(1)
+		}
+	}()
+
+	<-ctx.Done()
+	log.Println("shutting down...")
+	srv.Shutdown(context.Background())
+	log.Println("shutdown complete")
+}