FedP2P/cmd/torrent/serve.go

73 lines
1.7 KiB
Go

package main
import (
"fmt"
"net/http"
"path/filepath"
"github.com/anacrolix/args"
"github.com/anacrolix/log"
"github.com/anacrolix/torrent"
"github.com/anacrolix/torrent/bencode"
"github.com/anacrolix/torrent/metainfo"
"github.com/anacrolix/torrent/storage"
)
func serve(ctx args.SubCmdCtx) error {
var filePath string
ctx.Parse(args.Pos("filePath", &filePath))
ctx.Defer(func() error {
cfg := torrent.NewDefaultClientConfig()
cfg.Seed = true
cl, err := torrent.NewClient(cfg)
if err != nil {
return fmt.Errorf("new torrent client: %w", err)
}
defer cl.Close()
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
cl.WriteStatus(w)
})
info := metainfo.Info{
PieceLength: 1 << 18,
}
err = info.BuildFromFilePath(filePath)
if err != nil {
return fmt.Errorf("building info from path %q: %w", filePath, err)
}
for _, fi := range info.Files {
log.Printf("added %q", fi.Path)
}
mi := metainfo.MetaInfo{
InfoBytes: bencode.MustMarshal(info),
}
pc, err := storage.NewDefaultPieceCompletionForDir(".")
if err != nil {
return fmt.Errorf("new piece completion: %w", err)
}
defer pc.Close()
ih := mi.HashInfoBytes()
to, _ := cl.AddTorrentOpt(torrent.AddTorrentOpts{
InfoHash: ih,
Storage: storage.NewFileOpts(storage.NewFileClientOpts{
ClientBaseDir: filePath,
FilePathMaker: func(opts storage.FilePathMakerOpts) string {
return filepath.Join(opts.File.Path...)
},
TorrentDirMaker: nil,
PieceCompletion: pc,
}),
})
defer to.Drop()
err = to.MergeSpec(&torrent.TorrentSpec{
InfoBytes: mi.InfoBytes,
Trackers: [][]string{{}},
})
if err != nil {
return fmt.Errorf("setting trackers: %w", err)
}
fmt.Println(ih)
select {}
})
return nil
}