Update: add config route

hub/configs.go

@@ -1,9 +1,12 @@
 package hub
 
 import (
+	"fmt"
 	"net/http"
 
-	"github.com/Dreamacro/clash/tunnel"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/proxy"
+	T "github.com/Dreamacro/clash/tunnel"
 
 	"github.com/go-chi/chi"
 	"github.com/go-chi/render"
@@ -11,22 +14,26 @@ import (
 
 func configRouter() http.Handler {
 	r := chi.NewRouter()
-	r.Put("/", updateConfig)
+	r.Get("/", getConfigs)
+	r.Put("/", updateConfigs)
 	return r
 }
 
-type General struct {
-	Mode string `json:mode`
+var modeMapping = map[string]T.Mode{
+	"Global": T.Global,
+	"Rule":   T.Rule,
+	"Direct": T.Direct,
 }
 
-var modeMapping = map[string]tunnel.Mode{
-	"global": tunnel.Global,
-	"rule":   tunnel.Rule,
-	"direct": tunnel.Direct,
+func getConfigs(w http.ResponseWriter, r *http.Request) {
+	info := listener.Info()
+	mode := tunnel.GetMode().String()
+	info.Mode = &mode
+	render.JSON(w, r, info)
 }
 
-func updateConfig(w http.ResponseWriter, r *http.Request) {
-	general := &General{}
+func updateConfigs(w http.ResponseWriter, r *http.Request) {
+	general := &C.General{}
 	err := render.DecodeJSON(r.Body, general)
 	if err != nil {
 		w.WriteHeader(http.StatusBadRequest)
@@ -36,14 +43,32 @@ func updateConfig(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	mode, ok := modeMapping[general.Mode]
-	if !ok {
+	// update errors
+	var proxyErr, modeErr error
+
+	// update proxy
+	listener := proxy.Instance()
+	proxyErr = listener.Update(general.AllowLan, general.Port, general.SocksPort)
+
+	// update mode
+	if general.Mode != nil {
+		mode, ok := modeMapping[*general.Mode]
+		if !ok {
+			modeErr = fmt.Errorf("Mode error")
+		} else {
+			tunnel.SetMode(mode)
+		}
+	}
+
+	hasError, errors := formatErrors(map[string]error{
+		"proxy": proxyErr,
+		"mode":  modeErr,
+	})
+
+	if hasError {
 		w.WriteHeader(http.StatusBadRequest)
-		render.JSON(w, r, Error{
-			Error: "Mode error",
-		})
+		render.JSON(w, r, errors)
 		return
 	}
-	tun.SetMode(mode)
 	w.WriteHeader(http.StatusNoContent)
 }