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"
+ "log/slog"
+ "net/http"
"os"
+ "path"
+ "runtime"
)
-const (
- defaultConfigPath = "/usr/local/var/mobius/config/" // matches Homebrew default config location
- defaultPort = 5500
+//go:embed mobius/config
+var cfgTemplate embed.FS
+
+const defaultPort = 5500
+
+var logLevels = map[string]slog.Level{
+ "debug": slog.LevelDebug,
+ "info": slog.LevelInfo,
+ "error": slog.LevelError,
+}
+
+// Values swapped in by go-releaser at build time
+var (
+ version = "dev"
+ commit = "none"
+ date = "unknown"
)
func main() {
- ctx, cancelRoot := context.WithCancel(context.Background())
+ ctx, _ := 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():
+ // }
+ //}()
- basePort := flag.Int("bind", defaultPort, "Bind address and port")
- configDir := flag.String("config", defaultConfigPath, "Path to config root")
- version := flag.Bool("version", false, "print version and exit")
+ 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")
+ printVersion := 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 {
- fmt.Printf("v%s\n", hotline.VERSION)
+ if *printVersion {
+ fmt.Printf("mobius-hotline-server %s, commit %s, built at %s", version, commit, date)
os.Exit(0)
}
- zapLvl, ok := zapLogLevel[*logLevel]
- if !ok {
- fmt.Printf("Invalid log level %s. Must be debug, info, warn, or error.\n", *logLevel)
- os.Exit(0)
- }
+ slogger := slog.New(
+ slog.NewTextHandler(
+ io.MultiWriter(os.Stdout, &lumberjack.Logger{
+ Filename: *logFile,
+ MaxSize: 100, // MB
+ MaxBackups: 3,
+ MaxAge: 365, // days
+ }),
+ &slog.HandlerOptions{Level: logLevels[*logLevel]},
+ ),
+ )
- cores := []zapcore.Core{newStdoutCore(zapLvl)}
- l := zap.New(zapcore.NewTee(cores...))
- defer func() { _ = l.Sync() }()
- logger := l.Sugar()
+ // It's important for Windows compatibility to use path.Join and not filepath.Join for the config dir initialization.
+ // https://github.com/golang/go/issues/44305
+ if *init {
+ if _, err := os.Stat(path.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
+ if err := os.MkdirAll(*configDir, 0750); err != nil {
+ slogger.Error(fmt.Sprintf("error creating config dir: %s", err))
+ os.Exit(1)
+ }
+ if err := copyDir(path.Join("mobius", "config"), *configDir); err != nil {
+ slogger.Error(fmt.Sprintf("error copying config dir: %s", err))
+ os.Exit(1)
+ }
+ slogger.Info("Config dir initialized at " + *configDir)
+ } else {
+ slogger.Info("Existing config dir found. Skipping initialization.")
+ }
+ }
if _, err := os.Stat(*configDir); os.IsNotExist(err) {
- logger.Fatalw("Configuration directory not found", "path", configDir)
+ slogger.Error("Configuration directory not found. Correct the path or re-run with -init to generate initial config.")
+ os.Exit(1)
}
- srv, err := hotline.NewServer(*configDir, "", *basePort, logger)
+ srv, err := hotline.NewServer(*configDir, *netInterface, *basePort, slogger, &hotline.OSFileStore{})
if err != nil {
- logger.Fatal(err)
+ slogger.Error(fmt.Sprintf("Error starting server: %s", err))
+ os.Exit(1)
}
+ sh := statHandler{hlServer: srv}
+ if *statsPort != "" {
+ http.HandleFunc("/", sh.RenderStats)
+
+ go func(srv *hotline.Server) {
+ // Use the default DefaultServeMux.
+ err = http.ListenAndServe(":"+*statsPort, nil)
+ if err != nil {
+ log.Fatal(err)
+ }
+ }(srv)
+ }
+
+ slogger.Info("Hotline server started",
+ "version", version,
+ "API port", fmt.Sprintf("%s:%v", *netInterface, *basePort),
+ "Transfer port", fmt.Sprintf("%s:%v", *netInterface, *basePort+1),
+ )
+
// Serve Hotline requests until program exit
- logger.Fatal(srv.ListenAndServe(ctx, cancelRoot))
+ log.Fatal(srv.ListenAndServe(ctx))
}
-func newStdoutCore(level zapcore.Level) zapcore.Core {
- encoderCfg := zap.NewProductionEncoderConfig()
- encoderCfg.TimeKey = "timestamp"
- encoderCfg.EncodeTime = zapcore.ISO8601TimeEncoder
+type statHandler struct {
+ hlServer *hotline.Server
+}
- return zapcore.NewCore(
- zapcore.NewConsoleEncoder(encoderCfg),
- zapcore.Lock(os.Stdout),
- level,
- )
+func (sh *statHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
+ u, err := json.Marshal(sh.hlServer.CurrentStats())
+ if err != nil {
+ panic(err)
+ }
+
+ _, _ = io.WriteString(w, string(u))
+}
+
+func defaultConfigPath() string {
+ var cfgPath string
+
+ switch runtime.GOOS {
+ case "windows":
+ cfgPath = "config/"
+ case "darwin":
+ if _, err := os.Stat("/usr/local/var/mobius/config/"); err == nil {
+ cfgPath = "/usr/local/var/mobius/config/"
+ } else if _, err := os.Stat("/opt/homebrew/var/mobius/config"); err == nil {
+ cfgPath = "/opt/homebrew/var/mobius/config/"
+ }
+ case "linux":
+ cfgPath = "/usr/local/var/mobius/config/"
+ default:
+ cfgPath = "./config/"
+ }
+
+ return cfgPath
+}
+
+// copyFile copies a file from src to dst. If dst does not exist, it is created.
+func copyFile(src, dst string) error {
+ sourceFile, err := os.Open(src)
+ if err != nil {
+ return err
+ }
+ defer sourceFile.Close()
+
+ destinationFile, err := os.Create(dst)
+ if err != nil {
+ return err
+ }
+ defer destinationFile.Close()
+
+ _, err = io.Copy(destinationFile, sourceFile)
+ return err
}
-var zapLogLevel = map[string]zapcore.Level{
- "debug": zap.DebugLevel,
- "info": zap.InfoLevel,
- "warn": zap.WarnLevel,
- "error": zap.ErrorLevel,
+// copyDir recursively copies a directory tree, attempting to preserve permissions.
+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(path.Join(dst, dirEntry.Name()), 0777); err != nil {
+ panic(err)
+ }
+ subdirEntries, _ := cfgTemplate.ReadDir(path.Join(src, dirEntry.Name()))
+ for _, subDirEntry := range subdirEntries {
+ f, err := os.Create(path.Join(dst, dirEntry.Name(), subDirEntry.Name()))
+ if err != nil {
+ return err
+ }
+
+ srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name(), subDirEntry.Name()))
+ if err != nil {
+ return fmt.Errorf("error copying srcFile: %w", err)
+ }
+ _, err = io.Copy(f, srcFile)
+ if err != nil {
+ return err
+ }
+ f.Close()
+ }
+ } else {
+ f, err := os.Create(path.Join(dst, dirEntry.Name()))
+ if err != nil {
+ return err
+ }
+
+ srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name()))
+ if err != nil {
+ return err
+ }
+ _, err = io.Copy(f, srcFile)
+ if err != nil {
+ return err
+ }
+ f.Close()
+ }
+ }
+
+ return nil
}
git.r.bdr.sh / rbdr / mobius / blobdiff