refactor code

io/vmess/vmess.go

@@ -0,0 +1,37 @@
+// Package vmess contains protocol definition, io lib for VMess.
+package vmess
+
+import (
+	"net"
+)
+
+// VMessInput implements the input message of VMess protocol. It only contains
+// the header of a input message. The data part will be handled by conection
+// handler directly, in favor of data streaming.
+type VMessInput struct {
+	version  byte
+	userHash [16]byte
+	randHash [256]byte
+	respKey  [32]byte
+	iv       [16]byte
+	command  byte
+	port     uint16
+	target   [256]byte
+}
+
+type VMessReader struct {
+	conn *net.Conn
+}
+
+// NewVMessReader creates a new VMessReader
+func NewVMessReader(conn *net.Conn) (VMessReader, error) {
+	var reader VMessReader
+	reader.conn = conn
+	return reader, nil
+}
+
+// Read reads data from current connection and form a VMessInput if possible.
+func (*VMessReader) Read() (VMessInput, error) {
+	var input VMessInput
+	return input, nil
+}