/
handlers_common.go
503 lines (453 loc) · 14.7 KB
/
handlers_common.go
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package ctrlsubsonic
import (
"errors"
"fmt"
"log"
"math"
"net/http"
"path/filepath"
"strings"
"time"
"unicode"
"github.com/google/uuid"
"github.com/jinzhu/gorm"
"go.senan.xyz/gonic/db"
"go.senan.xyz/gonic/scanner"
"go.senan.xyz/gonic/scrobble"
"go.senan.xyz/gonic/server/ctrlsubsonic/params"
"go.senan.xyz/gonic/server/ctrlsubsonic/spec"
"go.senan.xyz/gonic/server/ctrlsubsonic/specid"
"go.senan.xyz/gonic/server/ctrlsubsonic/specidpaths"
)
func (c *Controller) ServeGetLicence(_ *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.Licence = &spec.Licence{
Valid: true,
}
return sub
}
func (c *Controller) ServePing(_ *http.Request) *spec.Response {
return spec.NewResponse()
}
func (c *Controller) ServeGetOpenSubsonicExtensions(_ *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.OpenSubsonicExtensions = spec.OpenSubsonicExtensions{}
return sub
}
func (c *Controller) ServeScrobble(r *http.Request) *spec.Response {
user := r.Context().Value(CtxUser).(*db.User)
params := r.Context().Value(CtxParams).(params.Params)
id, err := params.GetID("id")
if err != nil {
return spec.NewError(10, "please provide a `id` parameter")
}
optStamp := params.GetOrTime("time", time.Now())
optSubmission := params.GetOrBool("submission", true)
var scrobbleTrack scrobble.Track
switch id.Type {
case specid.Track:
var track db.Track
if err := c.DB.Preload("Album").Preload("Album.Artists").First(&track, id.Value).Error; err != nil {
return spec.NewError(0, "error finding track: %v", err)
}
if track.Album == nil {
return spec.NewError(0, "track has no album %d", track.ID)
}
scrobbleTrack.Track = track.TagTitle
scrobbleTrack.Artist = track.TagTrackArtist
scrobbleTrack.Album = track.Album.TagTitle
scrobbleTrack.AlbumArtist = strings.Join(track.Album.ArtistsStrings(), ", ")
scrobbleTrack.TrackNumber = uint(track.TagTrackNumber)
scrobbleTrack.Duration = time.Second * time.Duration(track.Length)
if _, err := uuid.Parse(track.TagBrainzID); err == nil {
scrobbleTrack.MusicBrainzID = track.TagBrainzID
}
if err := scrobbleStatsUpdateTrack(c.DB, &track, user.ID, optStamp); err != nil {
return spec.NewError(0, "error updating stats: %v", err)
}
case specid.PodcastEpisode:
var podcastEpisode db.PodcastEpisode
if err := c.DB.Preload("Podcast").First(&podcastEpisode, id.Value).Error; err != nil {
return spec.NewError(0, "error finding podcast episode: %v", err)
}
scrobbleTrack.Track = podcastEpisode.Title
scrobbleTrack.Artist = podcastEpisode.Podcast.Title
scrobbleTrack.Duration = time.Second * time.Duration(podcastEpisode.Length)
if err := scrobbleStatsUpdatePodcastEpisode(c.DB, id.Value); err != nil {
return spec.NewError(0, "error updating stats: %v", err)
}
}
var scrobbleErrs []error
for _, scrobbler := range c.Scrobblers {
if !scrobbler.IsUserAuthenticated(*user) {
continue
}
if err := scrobbler.Scrobble(*user, scrobbleTrack, optStamp, optSubmission); err != nil {
scrobbleErrs = append(scrobbleErrs, err)
}
}
if len(scrobbleErrs) > 0 {
return spec.NewError(0, "error when submitting: %v", errors.Join(scrobbleErrs...))
}
return spec.NewResponse()
}
func (c *Controller) ServeGetMusicFolders(_ *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.MusicFolders = &spec.MusicFolders{}
for i, mp := range c.MusicPaths {
alias := mp.Alias
if alias == "" {
alias = filepath.Base(mp.Path)
}
sub.MusicFolders.List = append(sub.MusicFolders.List, &spec.MusicFolder{ID: i, Name: alias})
}
return sub
}
func (c *Controller) ServeStartScan(r *http.Request) *spec.Response {
go func() {
if _, err := c.Scanner.ScanAndClean(scanner.ScanOptions{}); err != nil {
log.Printf("error while scanning: %v\n", err)
}
}()
return c.ServeGetScanStatus(r)
}
func (c *Controller) ServeGetScanStatus(_ *http.Request) *spec.Response {
var trackCount int
if err := c.DB.Model(db.Track{}).Count(&trackCount).Error; err != nil {
return spec.NewError(0, "error finding track count: %v", err)
}
sub := spec.NewResponse()
sub.ScanStatus = &spec.ScanStatus{
Scanning: c.Scanner.IsScanning(),
Count: trackCount,
}
return sub
}
func (c *Controller) ServeGetUser(r *http.Request) *spec.Response {
user := r.Context().Value(CtxUser).(*db.User)
hasLastFM := user.LastFMSession != ""
hasListenBrainz := user.ListenBrainzToken != ""
sub := spec.NewResponse()
sub.User = &spec.User{
Username: user.Name,
AdminRole: user.IsAdmin,
JukeboxRole: c.Jukebox != nil,
PodcastRole: c.Podcasts != nil,
DownloadRole: true,
ScrobblingEnabled: hasLastFM || hasListenBrainz,
Folder: []int{1},
}
return sub
}
func (c *Controller) ServeNotFound(_ *http.Request) *spec.Response {
return spec.NewError(70, "view not found")
}
func (c *Controller) ServeGetPlayQueue(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
user := r.Context().Value(CtxUser).(*db.User)
var queue db.PlayQueue
err := c.DB.
Where("user_id=?", user.ID).
Find(&queue).
Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return spec.NewResponse()
}
sub := spec.NewResponse()
sub.PlayQueue = &spec.PlayQueue{}
sub.PlayQueue.Username = user.Name
sub.PlayQueue.Position = queue.Position
sub.PlayQueue.Current = queue.CurrentSID()
sub.PlayQueue.Changed = queue.UpdatedAt
sub.PlayQueue.ChangedBy = queue.ChangedBy
trackIDs := queue.GetItems()
sub.PlayQueue.List = make([]*spec.TrackChild, len(trackIDs))
transcodeMeta := streamGetTranscodeMeta(c.DB, user.ID, params.GetOr("c", ""))
for i, id := range trackIDs {
switch id.Type {
case specid.Track:
track := db.Track{}
c.DB.
Where("id=?", id.Value).
Preload("Album").
Preload("TrackStar", "user_id=?", user.ID).
Preload("TrackRating", "user_id=?", user.ID).
Find(&track)
sub.PlayQueue.List[i] = spec.NewTCTrackByFolder(&track, track.Album)
sub.PlayQueue.List[i].TranscodeMeta = transcodeMeta
case specid.PodcastEpisode:
pe := db.PodcastEpisode{}
c.DB.
Where("id=?", id.Value).
Find(&pe)
sub.PlayQueue.List[i] = spec.NewTCPodcastEpisode(&pe)
sub.PlayQueue.List[i].TranscodeMeta = transcodeMeta
}
}
return sub
}
func (c *Controller) ServeSavePlayQueue(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
tracks, err := params.GetIDList("id")
if err != nil {
return spec.NewError(10, "please provide some `id` parameters")
}
trackIDs := make([]specid.ID, 0, len(tracks))
for _, id := range tracks {
if (id.Type == specid.Track) || (id.Type == specid.PodcastEpisode) {
trackIDs = append(trackIDs, id)
}
}
if len(trackIDs) == 0 {
return spec.NewError(10, "no track ids provided")
}
user := r.Context().Value(CtxUser).(*db.User)
var queue db.PlayQueue
c.DB.Where("user_id=?", user.ID).First(&queue)
queue.UserID = user.ID
queue.Current = params.GetOrID("current", specid.ID{}).String()
queue.Position = params.GetOrInt("position", 0)
queue.ChangedBy = params.GetOr("c", "") // must exist, middleware checks
queue.SetItems(trackIDs)
c.DB.Save(&queue)
return spec.NewResponse()
}
func (c *Controller) ServeGetSong(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
user := r.Context().Value(CtxUser).(*db.User)
id, err := params.GetID("id")
if err != nil {
return spec.NewError(10, "provide an `id` parameter")
}
var track db.Track
err = c.DB.
Where("id=?", id.Value).
Preload("Album").
Preload("Album.Artists").
Preload("TrackStar", "user_id=?", user.ID).
Preload("TrackRating", "user_id=?", user.ID).
First(&track).
Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return spec.NewError(10, "couldn't find a track with that id")
}
transcodeMeta := streamGetTranscodeMeta(c.DB, user.ID, params.GetOr("c", ""))
sub := spec.NewResponse()
sub.Track = spec.NewTrackByTags(&track, track.Album)
sub.Track.TranscodeMeta = transcodeMeta
return sub
}
func (c *Controller) ServeGetRandomSongs(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
user := r.Context().Value(CtxUser).(*db.User)
var tracks []*db.Track
q := c.DB.DB.
Limit(params.GetOrInt("size", 10)).
Preload("Album").
Preload("Album.Artists").
Preload("TrackStar", "user_id=?", user.ID).
Preload("TrackRating", "user_id=?", user.ID).
Joins("JOIN albums ON tracks.album_id=albums.id").
Order(gorm.Expr("random()"))
if year, err := params.GetInt("fromYear"); err == nil {
q = q.Where("albums.tag_year >= ?", year)
}
if year, err := params.GetInt("toYear"); err == nil {
q = q.Where("albums.tag_year <= ?", year)
}
if genre, err := params.Get("genre"); err == nil {
q = q.Joins("JOIN track_genres ON track_genres.track_id=tracks.id")
q = q.Joins("JOIN genres ON genres.id=track_genres.genre_id AND genres.name=?", genre)
}
if m := getMusicFolder(c.MusicPaths, params); m != "" {
q = q.Where("albums.root_dir=?", m)
}
if err := q.Find(&tracks).Error; err != nil {
return spec.NewError(10, "get random songs: %v", err)
}
sub := spec.NewResponse()
sub.RandomTracks = &spec.RandomTracks{}
sub.RandomTracks.List = make([]*spec.TrackChild, len(tracks))
transcodeMeta := streamGetTranscodeMeta(c.DB, user.ID, params.GetOr("c", ""))
for i, track := range tracks {
sub.RandomTracks.List[i] = spec.NewTrackByTags(track, track.Album)
sub.RandomTracks.List[i].TranscodeMeta = transcodeMeta
}
return sub
}
var errNotATrack = errors.New("not a track")
func (c *Controller) ServeJukebox(r *http.Request) *spec.Response { // nolint:gocyclo
params := r.Context().Value(CtxParams).(params.Params)
trackPaths := func(ids []specid.ID) ([]string, error) {
var paths []string
for _, id := range ids {
r, err := specidpaths.Locate(c.DB, id)
if err != nil {
return nil, fmt.Errorf("find track by id: %w", err)
}
paths = append(paths, r.AbsPath())
}
return paths, nil
}
getSpecStatus := func() (*spec.JukeboxStatus, error) {
status, err := c.Jukebox.GetStatus()
if err != nil {
return nil, fmt.Errorf("get status: %w", err)
}
return &spec.JukeboxStatus{
CurrentIndex: status.CurrentIndex,
Playing: status.Playing,
Gain: float64(status.GainPct) / 100.0,
Position: status.Position,
}, nil
}
getSpecPlaylist := func() ([]*spec.TrackChild, error) {
var ret []*spec.TrackChild
playlist, err := c.Jukebox.GetPlaylist()
if err != nil {
return nil, fmt.Errorf("get playlist: %w", err)
}
for _, path := range playlist {
file, err := specidpaths.Lookup(c.DB, PathsOf(c.MusicPaths), c.PodcastsPath, path)
if err != nil {
return nil, fmt.Errorf("fetch track: %w", err)
}
track, ok := file.(*db.Track)
if !ok {
return nil, fmt.Errorf("%q: %w", path, errNotATrack)
}
ret = append(ret, spec.NewTrackByTags(track, track.Album))
}
return ret, nil
}
switch act, _ := params.Get("action"); act {
case "set":
ids := params.GetOrIDList("id", nil)
paths, err := trackPaths(ids)
if err != nil {
return spec.NewError(0, "error creating playlist items: %v", err)
}
if err := c.Jukebox.SetPlaylist(paths); err != nil {
return spec.NewError(0, "error setting playlist: %v", err)
}
case "add":
ids := params.GetOrIDList("id", nil)
paths, err := trackPaths(ids)
if err != nil {
return spec.NewError(10, "error creating playlist items: %v", err)
}
if err := c.Jukebox.AppendToPlaylist(paths); err != nil {
return spec.NewError(0, "error appending to playlist: %v", err)
}
case "clear":
if err := c.Jukebox.ClearPlaylist(); err != nil {
return spec.NewError(0, "error clearing playlist: %v", err)
}
case "remove":
index, err := params.GetInt("index")
if err != nil {
return spec.NewError(10, "please provide an id for remove actions")
}
if err := c.Jukebox.RemovePlaylistIndex(index); err != nil {
return spec.NewError(0, "error removing: %v", err)
}
case "stop":
if err := c.Jukebox.Pause(); err != nil {
return spec.NewError(0, "error stopping: %v", err)
}
case "start":
if err := c.Jukebox.Play(); err != nil {
return spec.NewError(0, "error starting: %v", err)
}
case "skip":
index, err := params.GetInt("index")
if err != nil {
return spec.NewError(10, "please provide an index for skip actions")
}
offset, _ := params.GetInt("offset")
if err := c.Jukebox.SkipToPlaylistIndex(index, offset); err != nil {
return spec.NewError(0, "error skipping: %v", err)
}
case "get":
specPlaylist, err := getSpecPlaylist()
if err != nil {
return spec.NewError(10, "error getting status tracks: %v", err)
}
status, err := getSpecStatus()
if err != nil {
return spec.NewError(10, "error getting status: %v", err)
}
sub := spec.NewResponse()
sub.JukeboxPlaylist = &spec.JukeboxPlaylist{
JukeboxStatus: status,
List: specPlaylist,
}
return sub
case "setGain":
gain, err := params.GetFloat("gain")
if err != nil {
return spec.NewError(10, "please provide a valid gain param")
}
if err := c.Jukebox.SetVolumePct(int(math.Min(gain, 1) * 100)); err != nil {
return spec.NewError(0, "error setting gain: %v", err)
}
}
// all actions except get are expected to return a status
status, err := getSpecStatus()
if err != nil {
return spec.NewError(10, "error getting status: %v", err)
}
sub := spec.NewResponse()
sub.JukeboxStatus = status
return sub
}
func (c *Controller) ServeGetLyrics(_ *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.Lyrics = &spec.Lyrics{}
return sub
}
func scrobbleStatsUpdateTrack(dbc *db.DB, track *db.Track, userID int, playTime time.Time) error {
var play db.Play
if err := dbc.Where("album_id=? AND user_id=?", track.AlbumID, userID).First(&play).Error; err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
return fmt.Errorf("find stat: %w", err)
}
play.AlbumID = track.AlbumID
play.UserID = userID
play.Count++ // for getAlbumList?type=frequent
play.Length += track.Length
if playTime.After(play.Time) {
play.Time = playTime // for getAlbumList?type=recent
}
if err := dbc.Save(&play).Error; err != nil {
return fmt.Errorf("save stat: %w", err)
}
return nil
}
func scrobbleStatsUpdatePodcastEpisode(dbc *db.DB, peID int) error {
var pe db.PodcastEpisode
if err := dbc.Where("id=?", peID).First(&pe).Error; err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
return fmt.Errorf("find podcast episode: %w", err)
}
pe.ModifiedAt = time.Now()
if err := dbc.Save(&pe).Error; err != nil {
return fmt.Errorf("save podcast episode: %w", err)
}
return nil
}
func getMusicFolder(musicPaths []MusicPath, p params.Params) string {
idx, err := p.GetInt("musicFolderId")
if err != nil {
return ""
}
if idx < 0 || idx >= len(musicPaths) {
return ""
}
return musicPaths[idx].Path
}
func lowerUDecOrHash(in string) string {
lower := unicode.ToLower(rune(in[0]))
if !unicode.IsLetter(lower) {
return "#"
}
return string(lower)
}