Add command to fetch a URL

cmd/sing-box/cmd_tools.go

@@ -4,14 +4,16 @@ import (
 	"context"
 
 	box "github.com/sagernet/sing-box"
+	"github.com/sagernet/sing-box/option"
 	E "github.com/sagernet/sing/common/exceptions"
+	N "github.com/sagernet/sing/common/network"
 
 	"github.com/spf13/cobra"
 )
 
 var commandTools = &cobra.Command{
 	Use:   "tools",
-	Short: "experimental tools",
+	Short: "Experimental tools",
 }
 
 func init() {
@@ -23,6 +25,10 @@ func createPreStartedClient() (*box.Box, error) {
 	if err != nil {
 		return nil, err
 	}
+	if options.Log == nil {
+		options.Log = &option.LogOptions{}
+	}
+	options.Log.Disabled = true
 	instance, err := box.New(context.Background(), options, nil)
 	if err != nil {
 		return nil, E.Cause(err, "create service")
@@ -33,3 +39,19 @@ func createPreStartedClient() (*box.Box, error) {
 	}
 	return instance, nil
 }
+
+func createDialer(instance *box.Box, network string, outboundTag string) (N.Dialer, error) {
+	if outboundTag == "" {
+		outbound := instance.Router().DefaultOutbound(network)
+		if outbound == nil {
+			return nil, E.New("missing default outbound")
+		}
+		return outbound, nil
+	} else {
+		outbound, loaded := instance.Router().Outbound(outboundTag)
+		if !loaded {
+			return nil, E.New("outbound not found: ", outboundTag)
+		}
+		return outbound, nil
+	}
+}