-/*
-meta4a -- Metalink 4.0 creator
-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
-the Free Software Foundation, version 3 of the License.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
+// meta4ra -- Metalink 4.0 utilities
+// Copyright (C) 2021-2024 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
+// the Free Software Foundation, version 3 of the License.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
// Metalink 4.0 creator
package main
import (
"bufio"
- "crypto/sha256"
- "crypto/sha512"
- "encoding/hex"
"encoding/xml"
"flag"
- "hash"
"io"
"log"
"os"
- "sync"
+ "path"
+ "strings"
"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() {
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")
+ sigPGP := flag.String("sig-pgp", "", "Path to OpenPGP .asc signature file")
+ sigSSH := flag.String("sig-ssh", "", "Path to OpenSSH .sig signature file")
+ hashes := flag.String("hashes", strings.Join(meta4ra.HashesDefault, ","), "hash-name:command-s")
torrent := flag.String("torrent", "", "Torrent URL")
log.SetFlags(log.Lshortfile)
flag.Parse()
for _, u := range flag.Args() {
urls = append(urls, meta4ra.URL{URL: u})
}
+ h := meta4ra.NewHasher(*hashes)
+ h.Start()
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: *fn,
+ Name: path.Base(*fn),
Description: *desc,
Size: uint64(size),
URLs: urls,
- Hashes: []meta4ra.Hash{
- {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))},
- },
+ Hashes: h.Sums(),
}
- if *sig != "" {
- sigData, err := os.ReadFile(*sig)
+ if *sigPGP != "" {
+ sigData, err := os.ReadFile(*sigPGP)
if err != nil {
log.Fatalln(err)
}
- f.Signature = &meta4ra.Signature{
- MediaType: meta4ra.GPGSigMediaType,
+ f.Signature = append(f.Signature, meta4ra.Signature{
+ MediaType: meta4ra.SigMediaTypePGP,
Signature: "\n" + string(sigData),
+ })
+ }
+ if *sigSSH != "" {
+ sigData, err := os.ReadFile(*sigSSH)
+ if err != nil {
+ log.Fatalln(err)
}
+ f.Signature = append(f.Signature, meta4ra.Signature{
+ MediaType: meta4ra.SigMediaTypeSSH,
+ Signature: "\n" + string(sigData),
+ })
}
if *torrent != "" {
f.MetaURLs = []meta4ra.MetaURL{{MediaType: "torrent", URL: *torrent}}