config: Allow encryption/decryption of config file with args

cmd/config/config.go

@@ -20,7 +20,9 @@ import (
 
 func init() {
 	cmd.Root.AddCommand(configCommand)
+	configCommand.AddCommand(configDecrypt)
 	configCommand.AddCommand(configEditCommand)
+	configCommand.AddCommand(configEncrypt)
 	configCommand.AddCommand(configFileCommand)
 	configCommand.AddCommand(configTouchCommand)
 	configCommand.AddCommand(configPathsCommand)
@@ -49,6 +51,36 @@ password to protect your configuration.
 	},
 }
 
+var configDecrypt = &cobra.Command{
+	Use:   "decrypt",
+	Short: `Decrypt the Rclone configuration file.`,
+	Run: func(command *cobra.Command, args []string) {
+		config.LoadedData()
+		config.ClearConfigPassword()
+		config.SaveConfig()
+	},
+}
+
+var configEncrypt = &cobra.Command{
+	Use:   "encrypt",
+	Short: `Encrypt the Rclone configuration file.`,
+	Long: `
+	Encrypts the config file. You can set a password via the prompt or
+	pass your password directly as an argument. After encryption you will be 
+	asked to enter a password when using Rclone. Passwords are not recoverable.
+`,
+	Run: func(command *cobra.Command, args []string) {
+		if len(args) == 0 {
+			passwd := config.ChangePassword("NEW configuration")
+			config.SetConfigPassword(passwd)
+		} else {
+			cmd.CheckArgs(1, 1, command, args)
+			config.SetConfigPassword(args[0])
+		}
+		config.SaveConfig()
+	},
+}
+
 var configEditCommand = &cobra.Command{
 	Use:   "edit",
 	Short: configCommand.Short,

fs/config/crypt.go

@@ -289,7 +289,7 @@ func SetConfigPassword(password string) error {
 	return nil
 }
 
-// ClearConfigPassword sets the current the password to empty
+// ClearConfigPassword sets the current password to empty
 func ClearConfigPassword() {
 	configKey = nil
 }

fs/config/rc.go

@@ -30,6 +30,62 @@ func rcDump(ctx context.Context, in rc.Params) (out rc.Params, err error) {
 	return DumpRcBlob(), nil
 }
 
+func init() {
+	rc.Add(rc.Call{
+		Path:         "config/decrypt",
+		Fn:           rcDecrypt,
+		Title:        "Decrypts the Rclone config file.",
+		AuthRequired: true,
+		Help:         `Decrypt the Rclone configuration file. Requires login.`,
+	})
+}
+
+// Decrypt the Rclone config file
+func rcDecrypt(ctx context.Context, in rc.Params) (out rc.Params, err error) {
+	ClearConfigPassword()
+	SaveConfig()
+	return nil, nil
+}
+
+func init() {
+	rc.Add(rc.Call{
+		Path:         "config/encrypt",
+		Fn:           rcEncrypt,
+		Title:        "Encrypts the Rclone config file.",
+		AuthRequired: false,
+		Help: `
+Parameters:
+- password: password to use for encryption
+
+Returns nil for success or a JSON object on error:
+- error: error_message
+
+Encrypts the config file. After encryption you will need to be logged in to use Rclone. 
+Passwords are not recoverable.
+`,
+	})
+}
+
+// Encrypts the Rclone config file
+func rcEncrypt(ctx context.Context, in rc.Params) (out rc.Params, err error) {
+
+	passwd, err := in.GetString("password")
+	if err != nil {
+		out = rc.Params{
+			"error": err,
+		}
+	} else if passwd == "" {
+		out = rc.Params{
+			"error": "password paramater not supplied",
+		}
+	} else {
+		SetConfigPassword(passwd)
+		SaveConfig()
+		out = nil
+	}
+	return out, nil
+}
+
 func init() {
 	rc.Add(rc.Call{
 		Path:         "config/get",

fs/config/ui.go

@@ -755,8 +755,9 @@ func SetPassword() {
 				fmt.Println("Password changed")
 				continue
 			case 'u':
-				configKey = nil
+				ClearConfigPassword()
 				SaveConfig()
+				fmt.Println("Configuration decrypted")
 				continue
 			case 'q':
 				return