add router handler option

pkg/handler/socks/v5/handler.go

@@ -36,9 +36,7 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 
 	return &socks5Handler{
 		bypass: options.Bypass,
-		router: (&chain.Router{}).
-			WithLogger(options.Logger).
-			WithResolver(options.Resolver),
+		router: options.Router,
 		logger: options.Logger,
 	}
 }
@@ -55,16 +53,9 @@ func (h *socks5Handler) Init(md md.Metadata) (err error) {
 		noTLS:         h.md.noTLS,
 	}
 
-	h.router.WithRetry(h.md.retryCount)
-
 	return
 }
 
-// implements chain.Chainable interface
-func (h *socks5Handler) WithChain(chain *chain.Chain) {
-	h.router.WithChain(chain)
-}
-
 func (h *socks5Handler) Handle(ctx context.Context, conn net.Conn) {
 	defer conn.Close()