add read-only db work mode

src/server/settings/DB.go

@@ -22,9 +22,10 @@ func openDB() error {
 	}
 
 	var err error
-	db, err = bolt.Open(filepath.Join(Path, "torrserver.db"), 0666, nil)
+	var ro = Get().ReadOnlyMode
+	db, err = bolt.Open(filepath.Join(Path, "torrserver.db"), 0666, &bolt.Options{ReadOnly: ro})
 	if err != nil {
-		fmt.Print(err)
+		fmt.Println(err)
 		return err
 	}
 

src/server/settings/Settings.go

@@ -37,6 +37,7 @@ type Settings struct {
 	DisableUPNP        bool
 	DisableDHT         bool
 	DisableUpload      bool
+	ReadOnlyMode       bool
 	Encryption         int // 0 - Enable, 1 - disable, 2 - force
 	DownloadRateLimit  int // in kb, 0 - inf
 	UploadRateLimit    int // in kb, 0 - inf
@@ -113,3 +114,10 @@ func SaveSettings() error {
 		return setsDB.Put([]byte("json"), []byte(buf))
 	})
 }
+
+func SetRDB() {
+	SaveSettings()
+	fmt.Println("Enable Read-only DB mode")
+	CloseDB()
+	sets.ReadOnlyMode = true
+}