-
Notifications
You must be signed in to change notification settings - Fork 73
/
metainfo.go
49 lines (44 loc) · 1.2 KB
/
metainfo.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
// Package metainfo support for reading and writing torrent files.
package metainfo
import (
"errors"
"io"
"github.com/zeebo/bencode"
)
// MetaInfo file dictionary
type MetaInfo struct {
Info *Info `bencode:"-"`
RawInfo bencode.RawMessage `bencode:"info" json:"-"`
Announce string `bencode:"announce"`
AnnounceList [][]string `bencode:"announce-list"`
CreationDate int64 `bencode:"creation date"`
Comment string `bencode:"comment"`
CreatedBy string `bencode:"created by"`
Encoding string `bencode:"encoding"`
}
// New returns a torrent from bencoded stream.
func New(r io.Reader) (*MetaInfo, error) {
var t MetaInfo
err := bencode.NewDecoder(r).Decode(&t)
if err != nil {
return nil, err
}
if len(t.RawInfo) == 0 {
return nil, errors.New("no info dict in torrent file")
}
t.Info, err = NewInfo(t.RawInfo)
return &t, err
}
func (m *MetaInfo) GetTrackers() []string {
var trackers []string
if len(m.AnnounceList) > 0 {
for _, t := range m.AnnounceList {
if len(t) > 0 {
trackers = append(trackers, t[0])
}
}
} else {
trackers = []string{m.Announce}
}
return trackers
}