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"
+ "net/http"
"os"
+ "path/filepath"
+ "runtime"
)
+//go:embed mobius/config
+var cfgTemplate embed.FS
+
const (
- defaultConfigPath = "/usr/local/var/mobius/config/" // matches Homebrew default config location
- defaultPort = 5500
+ defaultPort = 5500
)
func main() {
- ctx, cancelRoot := context.WithCancel(context.Background())
+ 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():
+ // }
+ // }()
- basePort := flag.Int("bind", defaultPort, "Bind address and port")
- configDir := flag.String("config", defaultConfigPath, "Path to config root")
+ 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 {
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 _, err := os.Stat(*configDir); os.IsNotExist(err) {
- logger.Fatalw("Configuration directory not found", "path", configDir)
+ 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.")
+ }
}
- hotline.FS = hotline.OSFileStore{}
+ if _, err := os.Stat(*configDir); os.IsNotExist(err) {
+ 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)
+ srv, err := hotline.NewServer(*configDir, *netInterface, *basePort, logger, &hotline.OSFileStore{})
if err != nil {
logger.Fatal(err)
}
+ 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)
+ }
+
// Serve Hotline requests until program exit
- logger.Fatal(srv.ListenAndServe(ctx, cancelRoot))
+ logger.Fatal(srv.ListenAndServe(ctx, cancel))
+}
+
+type statHandler struct {
+ hlServer *hotline.Server
+}
+
+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 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,
"warn": zap.WarnLevel,
"error": zap.ErrorLevel,
}
+
+func defaultConfigPath() (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:
+ fmt.Printf("unsupported OS")
+ }
+
+ 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
+}
git.r.bdr.sh / rbdr / mobius / blobdiff