Add MTProxy, MASQUE, VPN, Link parser. Update AmneziaWG. Remove Tunneling

parser/raw/parser.go

@@ -0,0 +1,50 @@
+package raw
+
+import (
+	"context"
+	"encoding/base64"
+	"strings"
+
+	"github.com/sagernet/sing-box/option"
+	"github.com/sagernet/sing-box/parser/link"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+func ParseRawSubscription(ctx context.Context, content string) ([]option.Outbound, error) {
+	if base64Content, err := DecodeBase64URLSafe(content); err == nil {
+		servers, _ := parseRawSubscription(base64Content)
+		if len(servers) > 0 {
+			return servers, err
+		}
+	}
+	return parseRawSubscription(content)
+}
+
+func parseRawSubscription(content string) ([]option.Outbound, error) {
+	var servers []option.Outbound
+	content = strings.ReplaceAll(content, "\r\n", "\n")
+	linkList := strings.Split(content, "\n")
+	for _, linkLine := range linkList {
+		server, err := link.ParseSubscriptionLink(linkLine)
+		if err != nil {
+			continue
+		}
+		servers = append(servers, server)
+	}
+	if len(servers) == 0 {
+		return nil, E.New("no servers found")
+	}
+	return servers, nil
+}
+
+func DecodeBase64URLSafe(content string) (string, error) {
+	s := strings.ReplaceAll(content, " ", "-")
+	s = strings.ReplaceAll(s, "/", "_")
+	s = strings.ReplaceAll(s, "+", "-")
+	s = strings.ReplaceAll(s, "=", "")
+	result, err := base64.RawURLEncoding.DecodeString(s)
+	if err != nil {
+		return content, nil
+	}
+	return string(result), nil
+}