Add Taildrop support

cmd/sing-box/cmd_api_tailscale_taildrop.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"context"
+	"strconv"
+	"time"
+
+	"github.com/sagernet/sing-box/daemon"
+	F "github.com/sagernet/sing/common/format"
+
+	"github.com/spf13/cobra"
+)
+
+var commandAPITailscaleTaildrop = &cobra.Command{
+	Use:   "taildrop",
+	Short: "Send and receive files over Tailscale",
+}
+
+func init() {
+	commandAPITailscaleTaildrop.PersistentFlags().StringVar(&commandAPITailscaleFlagEndpoint, "endpoint", "", commandAPITailscaleEndpointUsage)
+	commandAPITailscale.AddCommand(commandAPITailscaleTaildrop)
+}
+
+func fetchTaildropInbox(client daemon.StartedServiceClient, endpointTag string) (*daemon.TaildropInbox, error) {
+	ctx, cancel := context.WithCancel(globalCtx)
+	defer cancel()
+	stream, err := client.SubscribeTaildropInbox(ctx, &daemon.SubscribeTaildropInboxRequest{
+		EndpointTag: endpointTag,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return stream.Recv()
+}
+
+func formatTaildropSize(size int64) string {
+	switch {
+	case size < 0:
+		return "-"
+	case size < 1000:
+		return F.ToString(size, " B")
+	case size < 1000*1000:
+		return formatTaildropSizeUnit(size, 1000, "KB")
+	case size < 1000*1000*1000:
+		return formatTaildropSizeUnit(size, 1000*1000, "MB")
+	default:
+		return formatTaildropSizeUnit(size, 1000*1000*1000, "GB")
+	}
+}
+
+func formatTaildropSizeUnit(size int64, unit int64, unitName string) string {
+	value := float64(size) / float64(unit)
+	var precision int
+	switch {
+	case value < 10:
+		precision = 2
+	case value < 100:
+		precision = 1
+	}
+	return strconv.FormatFloat(value, 'f', precision, 64) + " " + unitName
+}
+
+func formatTaildropModifiedAt(timestamp int64) string {
+	if timestamp == 0 {
+		return ""
+	}
+	return time.Unix(timestamp, 0).Local().Format("2006-01-02 15:04")
+}