59 lignes
1,4 Kio
Go
59 lignes
1,4 Kio
Go
package metainfoFetcher
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import (
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"errors"
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"strings"
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"time"
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"github.com/NyaaPantsu/nyaa/config"
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"github.com/NyaaPantsu/nyaa/model"
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"github.com/NyaaPantsu/nyaa/util"
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"github.com/anacrolix/torrent/metainfo"
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)
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// FetchOperation struct
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type FetchOperation struct {
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fetcher *MetainfoFetcher
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torrent model.Torrent
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done chan struct{}
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}
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// Result struct
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type Result struct {
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operation *FetchOperation
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err error
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info *metainfo.Info
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}
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// NewFetchOperation : Creates a new fetchoperation
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func NewFetchOperation(fetcher *MetainfoFetcher, dbEntry model.Torrent) (op *FetchOperation) {
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op = &FetchOperation{
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fetcher: fetcher,
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torrent: dbEntry,
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done: make(chan struct{}, 1),
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}
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return
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}
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// Start : Should be started from a goroutine somewhere
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func (op *FetchOperation) Start(out chan Result) {
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defer op.fetcher.wg.Done()
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magnet := util.InfoHashToMagnet(strings.TrimSpace(op.torrent.Hash), op.torrent.Name, config.Conf.Torrents.Trackers.Default...)
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downloadingTorrent, err := op.fetcher.torrentClient.AddMagnet(magnet)
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if err != nil {
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out <- Result{op, err, nil}
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return
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}
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defer downloadingTorrent.Drop()
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timeoutTimer := time.NewTicker(time.Second * time.Duration(op.fetcher.timeout))
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defer timeoutTimer.Stop()
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select {
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case <-downloadingTorrent.GotInfo():
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out <- Result{op, nil, downloadingTorrent.Info()}
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case <-timeoutTimer.C:
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out <- Result{op, errors.New("Timeout"), nil}
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case <-op.done:
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}
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}
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