Refactor shared

config/parser.go

@@ -0,0 +1,88 @@
+package config
+
+import (
+	_ "embed"
+	"fmt"
+	"os"
+
+	"github.com/hiddify/ray2sing/ray2sing"
+	"github.com/sagernet/sing-box/experimental/libbox"
+	"github.com/sagernet/sing-box/option"
+	"github.com/xmdhs/clash2singbox/convert"
+	"github.com/xmdhs/clash2singbox/model/clash"
+	"gopkg.in/yaml.v3"
+)
+
+//go:embed config.json.template
+var configByte []byte
+
+var configParsers = []func([]byte, bool) ([]byte, error){
+	parseSingboxConfig,
+	parseV2rayConfig,
+	parseClashConfig,
+}
+
+func ParseConfig(path string, tempPath string, debug bool) error {
+	content, err := os.ReadFile(tempPath)
+	if err != nil {
+		return err
+	}
+
+	var parseError error
+	for index, parser := range configParsers {
+		config, err := parser(content, debug)
+		if err == nil {
+			fmt.Printf("[ConfigParser] success with parser #%d, checking...\n", index)
+			err = libbox.CheckConfig(string(config))
+			if err != nil {
+				return err
+			}
+			err = os.WriteFile(path, config, 0777)
+			return err
+		}
+		parseError = err
+	}
+	return parseError
+}
+
+func parseV2rayConfig(content []byte, debug bool) ([]byte, error) {
+	config, err := ray2sing.Ray2Singbox(string(content))
+	if err != nil {
+		fmt.Printf("[V2rayParser] error: %s\n", err)
+		return nil, err
+	}
+	return []byte(config), nil
+}
+
+func parseClashConfig(content []byte, debug bool) ([]byte, error) {
+	clashConfig := clash.Clash{}
+	err := yaml.Unmarshal(content, &clashConfig)
+	if err != nil {
+		fmt.Printf("[ClashParser] unmarshal error: %s\n", err)
+		return nil, err
+	}
+
+	sbConfig, err := convert.Clash2sing(clashConfig)
+	if err != nil {
+		fmt.Printf("[ClashParser] convert error: %s\n", err)
+		return nil, err
+	}
+
+	output := configByte
+	output, err = convert.Patch(output, sbConfig, "", "", nil)
+	if err != nil {
+		fmt.Printf("[ClashParser] patch error: %s\n", err)
+		return nil, err
+	}
+	return output, nil
+}
+
+func parseSingboxConfig(content []byte, debug bool) ([]byte, error) {
+	var options option.Options
+	err := options.UnmarshalJSON(content)
+	if err != nil {
+		fmt.Printf("[SingboxParser] unmarshal error: %s\n", err)
+		return nil, err
+	}
+	return content, nil
+}