Add subscription manager

main/commands/all/engineering/subscriptionEntriesExtract.go

@@ -0,0 +1,70 @@
+package engineering
+
+import (
+	"archive/zip"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+
+	"golang.org/x/crypto/sha3"
+
+	"github.com/v2fly/v2ray-core/v5/app/subscription/containers"
+	"github.com/v2fly/v2ray-core/v5/main/commands/base"
+)
+
+var cmdSubscriptionEntriesExtractInputName *string
+
+var cmdSubscriptionEntriesExtract = &base.Command{
+	UsageLine: "{{.Exec}} engineering subscriptionEntriesExtract",
+	Flag: func() flag.FlagSet {
+		fs := flag.NewFlagSet("", flag.ExitOnError)
+		cmdSubscriptionEntriesExtractInputName = fs.String("input", "", "")
+		return *fs
+	}(),
+	Run: func(cmd *base.Command, args []string) {
+		cmd.Flag.Parse(args)
+		inputReader := os.Stdin
+		if *cmdSubscriptionEntriesExtractInputName != "" {
+			file, err := os.Open(*cmdSubscriptionEntriesExtractInputName)
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+			inputReader = file
+			defer file.Close()
+		}
+		content, err := io.ReadAll(inputReader)
+		if err != nil {
+			base.Fatalf("%s", err)
+		}
+		parsed, err := containers.TryAllParsers(content, "")
+		if err != nil {
+			base.Fatalf("%s", err)
+		}
+		zipWriter := zip.NewWriter(os.Stdout)
+		{
+			writer, err := zipWriter.Create("meta.json")
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+			err = json.NewEncoder(writer).Encode(parsed.Metadata)
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+		}
+		for k, entry := range parsed.ServerSpecs {
+			hash := sha3.Sum256(entry.Content)
+			fileName := fmt.Sprintf("entry_%v_%x", k, hash[:8])
+			writer, err := zipWriter.Create(fileName)
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+			_, err = writer.Write(entry.Content)
+			if err != nil {
+				base.Fatalf("%s", err)
+			}
+		}
+		zipWriter.Close()
+	},
+}