feat: IN-TYPE rule support

eg. IN-TYPE,SOCKS/REDIR/INNER,Proxy
support list: HTTP HTTPS SOCKS SOCKS4 SOCKS5 REDIR TPROXY TUN INNER

constant/metadata.go

@@ -19,7 +19,7 @@ const (
 	ALLNet
 
 	HTTP Type = iota
-	HTTPCONNECT
+	HTTPS
 	SOCKS4
 	SOCKS5
 	REDIR
@@ -49,8 +49,8 @@ func (t Type) String() string {
 	switch t {
 	case HTTP:
 		return "HTTP"
-	case HTTPCONNECT:
-		return "HTTP Connect"
+	case HTTPS:
+		return "HTTPS"
 	case SOCKS4:
 		return "Socks4"
 	case SOCKS5:
@@ -68,6 +68,31 @@ func (t Type) String() string {
 	}
 }
 
+func ParseType(t string) (*Type, error) {
+	var res Type
+	switch t {
+	case "HTTP":
+		res = HTTP
+	case "HTTPS":
+		res = HTTPS
+	case "SOCKS4":
+		res = SOCKS4
+	case "SOCKS5":
+		res = SOCKS5
+	case "REDIR":
+		res = REDIR
+	case "TPROXY":
+		res = TPROXY
+	case "TUN":
+		res = TUN
+	case "INNER":
+		res = INNER
+	default:
+		return nil, fmt.Errorf("unknown type: %s", t)
+	}
+	return &res, nil
+}
+
 func (t Type) MarshalJSON() ([]byte, error) {
 	return json.Marshal(t.String())
 }

constant/rule.go

@@ -16,6 +16,7 @@ const (
 	RuleSet
 	Network
 	Uid
+	INTYPE
 	MATCH
 	AND
 	OR
@@ -56,6 +57,8 @@ func (rt RuleType) String() string {
 		return "Network"
 	case Uid:
 		return "Uid"
+	case INTYPE:
+		return "InType"
 	case AND:
 		return "AND"
 	case OR: