Add clash mode support

experimental/clashapi/server.go

@@ -37,6 +37,7 @@ type Server struct {
 	trafficManager *trafficontrol.Manager
 	urlTestHistory *urltest.HistoryStorage
 	tcpListener    net.Listener
+	mode           string
 }
 
 func NewServer(router adapter.Router, logFactory log.ObservableFactory, options option.ClashAPIOptions) *Server {
@@ -51,6 +52,10 @@ func NewServer(router adapter.Router, logFactory log.ObservableFactory, options
 		},
 		trafficManager: trafficManager,
 		urlTestHistory: urltest.NewHistoryStorage(),
+		mode:           strings.ToLower(options.DefaultMode),
+	}
+	if server.mode == "" {
+		server.mode = "rule"
 	}
 	cors := cors.New(cors.Options{
 		AllowedOrigins: []string{"*"},
@@ -65,7 +70,7 @@ func NewServer(router adapter.Router, logFactory log.ObservableFactory, options
 		r.Get("/logs", getLogs(logFactory))
 		r.Get("/traffic", traffic(trafficManager))
 		r.Get("/version", version)
-		r.Mount("/configs", configRouter(logFactory))
+		r.Mount("/configs", configRouter(server, logFactory, server.logger))
 		r.Mount("/proxies", proxyRouter(server, router))
 		r.Mount("/rules", ruleRouter(router))
 		r.Mount("/connections", connectionRouter(trafficManager))
@@ -121,6 +126,10 @@ func (s *Server) RoutedPacketConnection(ctx context.Context, conn N.PacketConn,
 	return tracker, tracker
 }
 
+func (s *Server) Mode() string {
+	return s.mode
+}
+
 func castMetadata(metadata adapter.InboundContext) trafficontrol.Metadata {
 	var inbound string
 	if metadata.Inbound != "" {