Files
cloudpods/pkg/util/torrentutils/torrentutils.go
2019-03-29 14:47:48 +08:00

65 lines
1.6 KiB
Go

// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package torrentutils
import (
"os"
"github.com/anacrolix/torrent/bencode"
"github.com/anacrolix/torrent/metainfo"
"yunion.io/x/log"
)
func GenerateTorrent(root string, trackers []string, torrentFile string) (*metainfo.MetaInfo, error) {
log.Debugf("generating torrent file ...")
os.Remove(torrentFile)
mi := metainfo.MetaInfo{
AnnounceList: [][]string{},
}
for _, a := range trackers {
mi.AnnounceList = append(mi.AnnounceList, []string{a})
}
mi.SetDefaults()
isPrivate := true
info := metainfo.Info{
PieceLength: 2 * 1024 * 1024,
Private: &isPrivate,
}
err := info.BuildFromFilePath(root)
if err != nil {
return nil, err
}
mi.InfoBytes, err = bencode.Marshal(info)
if err != nil {
return nil, err
}
torrentFp, err := os.Create(torrentFile)
if err != nil {
log.Fatalf("fail to create torrent file %s", err)
}
defer torrentFp.Close()
err = mi.Write(torrentFp)
if err != nil {
return nil, err
}
log.Debugf("generating torrent file %s ...done!", torrentFile)
return &mi, nil
}