/*
meta4a -- Metalink 4.0 creator
-Copyright (C) 2021 Sergey Matveev <stargrave@stargrave.org>
+Copyright (C) 2021-2023 Sergey Matveev <stargrave@stargrave.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
"encoding/hex"
"encoding/xml"
"flag"
+ "hash"
"io"
- "io/ioutil"
"log"
"os"
- "path/filepath"
+ "sync"
"time"
+ "go.cypherpunks.ru/gogost/v5/gost34112012256"
+ "go.cypherpunks.ru/gogost/v5/gost34112012512"
"go.stargrave.org/meta4ra"
)
+type MultiHasher struct {
+ sha256h hash.Hash
+ sha512h hash.Hash
+ streebog256h hash.Hash
+ streebog512h hash.Hash
+ g sync.WaitGroup
+}
+
+func NewMultiHasher() *MultiHasher {
+ return &MultiHasher{
+ sha256h: sha256.New(),
+ sha512h: sha512.New(),
+ streebog256h: gost34112012256.New(),
+ streebog512h: gost34112012512.New(),
+ }
+}
+
+func (h *MultiHasher) Write(p []byte) (n int, err error) {
+ h.g.Add(4)
+ go func() {
+ if _, err := h.sha256h.Write(p); err != nil {
+ panic(err)
+ }
+ h.g.Done()
+ }()
+ go func() {
+ if _, err := h.sha512h.Write(p); err != nil {
+ panic(err)
+ }
+ h.g.Done()
+ }()
+ go func() {
+ if _, err := h.streebog256h.Write(p); err != nil {
+ panic(err)
+ }
+ h.g.Done()
+ }()
+ go func() {
+ if _, err := h.streebog512h.Write(p); err != nil {
+ panic(err)
+ }
+ h.g.Done()
+ }()
+ h.g.Wait()
+ return len(p), nil
+}
+
func main() {
- file := flag.String("file", "", "Path to file")
+ fn := flag.String("fn", "", "Filename")
mtime := flag.String("mtime", "", "Take that file's mtime as a Published date")
desc := flag.String("desc", "", "Description")
sig := flag.String("sig", "", "Path to signature file")
torrent := flag.String("torrent", "", "Torrent URL")
log.SetFlags(log.Lshortfile)
flag.Parse()
+ if *fn == "" {
+ log.Fatalln("empty -fn")
+ }
urls := make([]meta4ra.URL, 0, len(flag.Args()))
for _, u := range flag.Args() {
urls = append(urls, meta4ra.URL{URL: u})
}
- fd, err := os.Open(*file)
- if err != nil {
- log.Fatalln(err)
- }
- fi, err := fd.Stat()
- if err != nil {
- log.Fatalln(err)
- }
- sha256Hasher := sha256.New()
- sha512Hasher := sha512.New()
- _, err = io.Copy(
- io.MultiWriter(sha256Hasher, sha512Hasher),
- bufio.NewReader(fd),
- )
+ br := bufio.NewReaderSize(os.Stdin, 1<<20)
+ buf := make([]byte, 1<<20)
+ h := NewMultiHasher()
+ size, err := io.CopyBuffer(h, br, buf)
if err != nil {
log.Fatalln(err)
}
f := meta4ra.File{
- Name: filepath.Base(*file),
+ Name: *fn,
Description: *desc,
- Size: uint64(fi.Size()),
+ Size: uint64(size),
URLs: urls,
Hashes: []meta4ra.Hash{
- {Type: meta4ra.HashSHA256, Hash: hex.EncodeToString(sha256Hasher.Sum(nil))},
- {Type: meta4ra.HashSHA512, Hash: hex.EncodeToString(sha512Hasher.Sum(nil))},
+ {Type: meta4ra.HashSHA256, Hash: hex.EncodeToString(h.sha256h.Sum(nil))},
+ {Type: meta4ra.HashSHA512, Hash: hex.EncodeToString(h.sha512h.Sum(nil))},
+ {Type: meta4ra.HashStreebog256, Hash: hex.EncodeToString(h.streebog256h.Sum(nil))},
+ {Type: meta4ra.HashStreebog512, Hash: hex.EncodeToString(h.streebog512h.Sum(nil))},
},
}
if *sig != "" {
- sigData, err := ioutil.ReadFile(*sig)
+ sigData, err := os.ReadFile(*sig)
if err != nil {
log.Fatalln(err)
}