X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/23411fc23dcf82e0ed35a780bfdda2341bedf819..2d0f2abe62a5cc7272f7aeabc761bc7cf2147592:/cmd/mobius-hotline-server/main.go

diff --git a/cmd/mobius-hotline-server/main.go b/cmd/mobius-hotline-server/main.go
index 8a3135e..7d3bf27 100644
--- a/cmd/mobius-hotline-server/main.go
+++ b/cmd/mobius-hotline-server/main.go
@@ -2,35 +2,57 @@ package main
 
 import (
 	"context"
+	"embed"
 	"encoding/json"
 	"flag"
 	"fmt"
 	"github.com/jhalter/mobius/hotline"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
+	"gopkg.in/natefinch/lumberjack.v2"
 	"io"
 	"log"
-	"math/rand"
 	"net/http"
 	"os"
+	"path/filepath"
 	"runtime"
-	"time"
 )
 
+//go:embed mobius/config
+var cfgTemplate embed.FS
+
 const (
 	defaultPort = 5500
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
-
-	ctx, cancelRoot := context.WithCancel(context.Background())
-
-	basePort := flag.Int("bind", defaultPort, "Bind address and port")
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// TODO: implement graceful shutdown by closing context
+	// c := make(chan os.Signal, 1)
+	// signal.Notify(c, os.Interrupt)
+	// defer func() {
+	// 	signal.Stop(c)
+	// 	cancel()
+	// }()
+	// go func() {
+	// 	select {
+	// 	case <-c:
+	// 		cancel()
+	// 	case <-ctx.Done():
+	// 	}
+	// }()
+
+	netInterface := flag.String("interface", "", "IP addr of interface to listen on.  Defaults to all interfaces.")
+	basePort := flag.Int("bind", defaultPort, "Base Hotline server port.  File transfer port is base port + 1.")
 	statsPort := flag.String("stats-port", "", "Enable stats HTTP endpoint on address and port")
 	configDir := flag.String("config", defaultConfigPath(), "Path to config root")
 	version := flag.Bool("version", false, "print version and exit")
 	logLevel := flag.String("log-level", "info", "Log level")
+	logFile := flag.String("log-file", "", "Path to log file")
+
+	init := flag.Bool("init", false, "Populate the config dir with default configuration")
+
 	flag.Parse()
 
 	if *version {
@@ -44,16 +66,38 @@ func main() {
 		os.Exit(0)
 	}
 
-	cores := []zapcore.Core{newStdoutCore(zapLvl)}
+	cores := []zapcore.Core{
+		newStdoutCore(zapLvl),
+	}
+
+	if *logFile != "" {
+		cores = append(cores, newLogFileCore(*logFile, zapLvl))
+	}
+
 	l := zap.New(zapcore.NewTee(cores...))
 	defer func() { _ = l.Sync() }()
 	logger := l.Sugar()
 
+	if *init {
+		if _, err := os.Stat(filepath.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
+			if err := os.MkdirAll(*configDir, 0750); err != nil {
+				logger.Fatal(err)
+			}
+
+			if err := copyDir("mobius/config", *configDir); err != nil {
+				logger.Fatal(err)
+			}
+			logger.Infow("Config dir initialized at " + *configDir)
+		} else {
+			logger.Infow("Existing config dir found.  Skipping initialization.")
+		}
+	}
+
 	if _, err := os.Stat(*configDir); os.IsNotExist(err) {
-		logger.Fatalw("Configuration directory not found", "path", configDir)
+		logger.Fatalw("Configuration directory not found.  Correct the path or re-run with -init to generate initial config.", "path", configDir)
 	}
 
-	srv, err := hotline.NewServer(*configDir, "", *basePort, logger, &hotline.OSFileStore{})
+	srv, err := hotline.NewServer(*configDir, *netInterface, *basePort, logger, &hotline.OSFileStore{})
 	if err != nil {
 		logger.Fatal(err)
 	}
@@ -72,7 +116,7 @@ func main() {
 	}
 
 	// Serve Hotline requests until program exit
-	logger.Fatal(srv.ListenAndServe(ctx, cancelRoot))
+	logger.Fatal(srv.ListenAndServe(ctx, cancel))
 }
 
 type statHandler struct {
@@ -80,7 +124,7 @@ type statHandler struct {
 }
 
 func (sh *statHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
-	u, err := json.Marshal(sh.hlServer.Stats)
+	u, err := json.Marshal(sh.hlServer.CurrentStats())
 	if err != nil {
 		panic(err)
 	}
@@ -100,6 +144,24 @@ func newStdoutCore(level zapcore.Level) zapcore.Core {
 	)
 }
 
+func newLogFileCore(path string, level zapcore.Level) zapcore.Core {
+	encoderCfg := zap.NewProductionEncoderConfig()
+	encoderCfg.TimeKey = "timestamp"
+	encoderCfg.EncodeTime = zapcore.ISO8601TimeEncoder
+	writer := zapcore.AddSync(&lumberjack.Logger{
+		Filename:   path,
+		MaxSize:    100, // MB
+		MaxBackups: 3,
+		MaxAge:     365, // days
+	})
+
+	return zapcore.NewCore(
+		zapcore.NewConsoleEncoder(encoderCfg),
+		writer,
+		level,
+	)
+}
+
 var zapLogLevel = map[string]zapcore.Level{
 	"debug": zap.DebugLevel,
 	"info":  zap.InfoLevel,
@@ -110,7 +172,7 @@ var zapLogLevel = map[string]zapcore.Level{
 func defaultConfigPath() (cfgPath string) {
 	switch runtime.GOOS {
 	case "windows":
-		cfgPath = "config"
+		cfgPath = "config/"
 	case "darwin":
 		if _, err := os.Stat("/usr/local/var/mobius/config/"); err == nil {
 			cfgPath = "/usr/local/var/mobius/config/"
@@ -125,3 +187,52 @@ func defaultConfigPath() (cfgPath string) {
 
 	return cfgPath
 }
+
+// TODO: Simplify this mess.  Why is it so difficult to recursively copy a directory?
+func copyDir(src, dst string) error {
+	entries, err := cfgTemplate.ReadDir(src)
+	if err != nil {
+		return err
+	}
+	for _, dirEntry := range entries {
+		if dirEntry.IsDir() {
+			if err := os.MkdirAll(filepath.Join(dst, dirEntry.Name()), 0777); err != nil {
+				panic(err)
+			}
+			subdirEntries, _ := cfgTemplate.ReadDir(filepath.Join(src, dirEntry.Name()))
+			for _, subDirEntry := range subdirEntries {
+				f, err := os.Create(filepath.Join(dst, dirEntry.Name(), subDirEntry.Name()))
+				if err != nil {
+					return err
+				}
+
+				srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name(), subDirEntry.Name()))
+				if err != nil {
+					return err
+				}
+				_, err = io.Copy(f, srcFile)
+				if err != nil {
+					return err
+				}
+				f.Close()
+			}
+		} else {
+			f, err := os.Create(filepath.Join(dst, dirEntry.Name()))
+			if err != nil {
+				return err
+			}
+
+			srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name()))
+			if err != nil {
+				return err
+			}
+			_, err = io.Copy(f, srcFile)
+			if err != nil {
+				return err
+			}
+			f.Close()
+		}
+	}
+
+	return nil
+}