-/*
-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"
+ "fmt"
"io"
"log"
"os"
- "path/filepath"
+ "path"
+ "strings"
"time"
"go.stargrave.org/meta4ra"
)
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")
+ sigPGP := flag.String("sig-pgp", "",
+ "Path to OpenPGP .asc signature file for inclusion")
+ sigSSH := flag.String("sig-ssh", "",
+ "Path to OpenSSH .sig signature file for inclusion")
+ hashes := flag.String("hashes",
+ strings.Join(meta4ra.HashesDefault, ","), "hash-name:command-s")
+ noPublished := flag.Bool("no-published", false,
+ "Do not include Published field")
+ noGenerator := flag.Bool("no-generator", false,
+ "Do not include Generator field")
torrent := flag.String("torrent", "", "Torrent URL")
- log.SetFlags(log.Lshortfile)
+ flag.Usage = func() {
+ fmt.Fprintf(flag.CommandLine.Output(),
+ "Usage: %s [options] [URL ...] < DATA > XXX.meta4\n", os.Args[0])
+ flag.PrintDefaults()
+ }
flag.Parse()
+ log.SetFlags(log.Lshortfile)
+ 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),
- )
+ h := meta4ra.NewHasher(*hashes)
+ h.Start()
+ br := bufio.NewReaderSize(os.Stdin, 1<<20)
+ buf := make([]byte, 1<<20)
+ size, err := io.CopyBuffer(h, br, buf)
if err != nil {
log.Fatalln(err)
}
f := meta4ra.File{
- Name: filepath.Base(*file),
+ Name: path.Base(*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))},
- },
+ 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}}
}
published = fi.ModTime()
}
- published = published.UTC().Truncate(time.Second)
- m := meta4ra.Metalink{
- Files: []meta4ra.File{f},
- Generator: meta4ra.Generator,
- Published: published,
+ m := meta4ra.Metalink{Files: []meta4ra.File{f}}
+ if !*noPublished {
+ t := published.UTC().Truncate(time.Second)
+ m.Published = &t
+ }
+ if !*noGenerator {
+ m.Generator = meta4ra.Generator
}
out, err := xml.MarshalIndent(&m, "", " ")
if err != nil {