update handler options

pkg/handler/tun/metadata.go

@@ -1,41 +1,21 @@
 package tun
 
 import (
-	"strings"
-
-	"github.com/go-gost/gost/pkg/common/util/ss"
 	mdata "github.com/go-gost/gost/pkg/metadata"
-	"github.com/shadowsocks/go-shadowsocks2/core"
 )
 
 type metadata struct {
-	cipher     core.Cipher
+	key        string
 	bufferSize int
 }
 
 func (h *tunHandler) parseMetadata(md mdata.Metadata) (err error) {
 	const (
-		users       = "users"
-		key         = "key"
-		readTimeout = "readTimeout"
-		bufferSize  = "bufferSize"
+		key        = "key"
+		bufferSize = "bufferSize"
 	)
 
-	var method, password string
-	if auths := mdata.GetStrings(md, users); len(auths) > 0 {
-		auth := auths[0]
-		ss := strings.SplitN(auth, ":", 2)
-		if len(ss) == 1 {
-			method = ss[0]
-		} else {
-			method, password = ss[0], ss[1]
-		}
-	}
-	h.md.cipher, err = ss.ShadowCipher(method, password, mdata.GetString(md, key))
-	if err != nil {
-		return
-	}
-
+	h.md.key = mdata.GetString(md, key)
 	h.md.bufferSize = mdata.GetInt(md, bufferSize)
 	if h.md.bufferSize <= 0 {
 		h.md.bufferSize = 1024