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fix torrent creation for binary data and refactor

pull/13/head
mutantmonkey 9 years ago
parent
commit
baca561f06
  1. 39
      torrent.go

39
torrent.go

@ -20,7 +20,7 @@ const (
type TorrentInfo struct { type TorrentInfo struct {
PieceLength int `bencode:"piece length"` PieceLength int `bencode:"piece length"`
Pieces []byte `bencode:"pieces"`
Pieces string `bencode:"pieces"`
Name string `bencode:"name"` Name string `bencode:"name"`
Length int `bencode:"length"` Length int `bencode:"length"`
} }
@ -31,10 +31,23 @@ type Torrent struct {
UrlList []string `bencode:"url-list"` UrlList []string `bencode:"url-list"`
} }
func hashPiece(piece []byte) []byte {
h := sha1.New()
h.Write(piece)
return h.Sum(nil)
}
func CreateTorrent(fileName string, filePath string) ([]byte, error) { func CreateTorrent(fileName string, filePath string) ([]byte, error) {
chunk := make([]byte, TORRENT_PIECE_LENGTH) chunk := make([]byte, TORRENT_PIECE_LENGTH)
var pieces []byte
length := 0
torrent := Torrent{
Encoding: "UTF-8",
Info: TorrentInfo{
PieceLength: TORRENT_PIECE_LENGTH,
Name: fileName,
},
UrlList: []string{fmt.Sprintf("%sselif/%s", Config.siteURL, fileName)},
}
f, err := os.Open(filePath) f, err := os.Open(filePath)
if err != nil { if err != nil {
@ -49,27 +62,13 @@ func CreateTorrent(fileName string, filePath string) ([]byte, error) {
return []byte{}, err return []byte{}, err
} }
length += n
h := sha1.New()
h.Write(chunk)
pieces = append(pieces, h.Sum(nil)...)
torrent.Info.Length += n
torrent.Info.Pieces += string(hashPiece(chunk[:n]))
} }
f.Close() f.Close()
torrent := &Torrent{
Encoding: "UTF-8",
Info: TorrentInfo{
PieceLength: TORRENT_PIECE_LENGTH,
Pieces: pieces,
Name: fileName,
Length: length,
},
UrlList: []string{fmt.Sprintf("%sselif/%s", Config.siteURL, fileName)},
}
data, err := bencode.EncodeBytes(torrent)
data, err := bencode.EncodeBytes(&torrent)
if err != nil { if err != nil {
return []byte{}, err return []byte{}, err
} }

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