[R4R] - {develop}: fix consensys audit issue: cs-6.42 (#1212)

return bad request if request type is unsupported

Co-authored-by: Raymond <6427270+wukongcheng@users.noreply.github.com>

tss/manager/router/registry.go

@@ -2,13 +2,14 @@ package router
 
 import (
 	"errors"
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"math/big"
 	"net/http"
 	"strconv"
 
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+
 	"github.com/gin-gonic/gin"
 	"github.com/mantlenetworkio/mantle/l2geth/log"
 	tss "github.com/mantlenetworkio/mantle/tss/common"
@@ -55,6 +56,9 @@ func (registry *Registry) SignStateHandler() gin.HandlerFunc {
 				return
 			}
 			signature, err = registry.signService.SignRollBack(request)
+		} else {
+			c.String(http.StatusBadRequest, "invalid request type %d, expected request type: 0 and 1", request.Type)
+			return
 		}
 		if err != nil {
 			c.String(http.StatusInternalServerError, "failed to sign state")