torrent/spec.go

69 lines
1.7 KiB
Go

package torrent
import (
"github.com/anacrolix/torrent/metainfo"
"github.com/anacrolix/torrent/storage"
)
// Specifies a new torrent for adding to a client. There are helpers for magnet URIs and torrent
// metainfo files.
type TorrentSpec struct {
// The tiered tracker URIs.
Trackers [][]string
InfoHash metainfo.Hash
InfoBytes []byte
// The name to use if the Name field from the Info isn't available.
DisplayName string
Webseeds []string
DhtNodes []string
PeerAddrs []string
// The combination of the "xs" and "as" fields in magnet links, for now.
Sources []string
// The chunk size to use for outbound requests. Defaults to 16KiB if not set.
ChunkSize int
Storage storage.ClientImpl
// Whether to allow data download or upload
DisallowDataUpload bool
DisallowDataDownload bool
}
func TorrentSpecFromMagnetUri(uri string) (spec *TorrentSpec, err error) {
m, err := metainfo.ParseMagnetUri(uri)
if err != nil {
return
}
spec = &TorrentSpec{
Trackers: [][]string{m.Trackers},
DisplayName: m.DisplayName,
InfoHash: m.InfoHash,
Webseeds: m.Params["ws"],
Sources: append(m.Params["xs"], m.Params["as"]...),
PeerAddrs: m.Params["x.pe"], // BEP 9
// TODO: What's the parameter for DHT nodes?
}
return
}
func TorrentSpecFromMetaInfo(mi *metainfo.MetaInfo) *TorrentSpec {
info, err := mi.UnmarshalInfo()
if err != nil {
panic(err)
}
return &TorrentSpec{
Trackers: mi.UpvertedAnnounceList(),
InfoHash: mi.HashInfoBytes(),
InfoBytes: mi.InfoBytes,
DisplayName: info.Name,
Webseeds: mi.UrlList,
DhtNodes: func() (ret []string) {
ret = make([]string, len(mi.Nodes))
for _, node := range mi.Nodes {
ret = append(ret, string(node))
}
return
}(),
}
}