feat(download-clients): add transmission (#350)

internal/action/transmission.go

@@ -0,0 +1,70 @@
+package action
+
+import (
+	"context"
+
+	"github.com/autobrr/autobrr/internal/domain"
+	"github.com/autobrr/autobrr/pkg/errors"
+
+	"github.com/hekmon/transmissionrpc/v2"
+)
+
+func (s *service) transmission(action domain.Action, release domain.Release) ([]string, error) {
+	s.log.Debug().Msgf("action Transmission: %v", action.Name)
+
+	var err error
+
+	// get client for action
+	client, err := s.clientSvc.FindByID(context.TODO(), action.ClientID)
+	if err != nil {
+		s.log.Error().Stack().Err(err).Msgf("error finding client: %v", action.ClientID)
+		return nil, err
+	}
+
+	if client == nil {
+		return nil, errors.New("could not find client by id: %v", action.ClientID)
+	}
+
+	var rejections []string
+
+	if release.TorrentTmpFile == "" {
+		err = release.DownloadTorrentFile()
+		if err != nil {
+			s.log.Error().Err(err).Msgf("could not download torrent file for release: %v", release.TorrentName)
+			return nil, err
+		}
+	}
+
+	tbt, err := transmissionrpc.New(client.Host, client.Username, client.Password, &transmissionrpc.AdvancedConfig{
+		HTTPS: client.TLS,
+		Port:  uint16(client.Port),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "error logging into client: %v", client.Host)
+	}
+
+	b64, err := transmissionrpc.File2Base64(release.TorrentTmpFile)
+	if err != nil {
+		return nil, errors.Wrap(err, "cant encode file %v into base64", release.TorrentTmpFile)
+	}
+
+	payload := transmissionrpc.TorrentAddPayload{
+		MetaInfo: &b64,
+	}
+	if action.SavePath != "" {
+		payload.DownloadDir = &action.SavePath
+	}
+	if action.Paused {
+		payload.Paused = &action.Paused
+	}
+
+	// Prepare and send payload
+	torrent, err := tbt.TorrentAdd(context.TODO(), payload)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not add torrent %v to client: %v", release.TorrentTmpFile, client.Host)
+	}
+
+	s.log.Info().Msgf("torrent with hash %v successfully added to client: '%v'", torrent.HashString, client.Name)
+
+	return rejections, nil
+}