Files
gonic/server/ctrlsubsonic/handlers_common.go
2021-11-12 20:14:57 +00:00

308 lines
8.5 KiB
Go

package ctrlsubsonic
import (
"errors"
"log"
"net/http"
"path/filepath"
"time"
"unicode"
"github.com/jinzhu/gorm"
"go.senan.xyz/gonic/multierr"
"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/db"
"go.senan.xyz/gonic/server/scanner"
)
func lowerUDecOrHash(in string) string {
lower := unicode.ToLower(rune(in[0]))
if !unicode.IsLetter(lower) {
return "#"
}
return string(lower)
}
func (c *Controller) ServeGetLicence(r *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.Licence = &spec.Licence{
Valid: true,
}
return sub
}
func (c *Controller) ServePing(r *http.Request) *spec.Response {
return spec.NewResponse()
}
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 || id.Type != specid.Track {
return spec.NewError(10, "please provide an valid `id` track parameter")
}
track := &db.Track{}
if err := c.DB.Preload("Album").Preload("Artist").First(track, id.Value).Error; err != nil {
return spec.NewError(0, "error finding track: %v", err)
}
optStamp := params.GetOrTime("time", time.Now())
optSubmission := params.GetOrBool("submission", true)
var scrobbleErrs multierr.Err
for _, scrobbler := range c.Scrobblers {
if err := scrobbler.Scrobble(user, track, optStamp, optSubmission); err != nil {
scrobbleErrs.Add(err)
}
}
if scrobbleErrs.Len() > 0 {
log.Printf("error when submitting: %v", scrobbleErrs)
return spec.NewError(0, "error when submitting: %v", scrobbleErrs)
}
return spec.NewResponse()
}
func (c *Controller) ServeGetMusicFolders(r *http.Request) *spec.Response {
sub := spec.NewResponse()
sub.MusicFolders = &spec.MusicFolders{}
sub.MusicFolders.List = make([]*spec.MusicFolder, len(c.MusicPaths))
for i, path := range c.MusicPaths {
sub.MusicFolders.List[i] = &spec.MusicFolder{ID: i, Name: filepath.Base(path)}
}
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(r *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,
ScrobblingEnabled: hasLastFM || hasListenBrainz,
Folder: []int{1},
}
return sub
}
func (c *Controller) ServeNotFound(r *http.Request) *spec.Response {
return spec.NewError(70, "view not found")
}
func (c *Controller) ServeGetPlayQueue(r *http.Request) *spec.Response {
user := r.Context().Value(CtxUser).(*db.User)
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))
for i, id := range trackIDs {
track := db.Track{}
c.DB.
Where("id=?", id).
Preload("Album").
Find(&track)
sub.PlayQueue.List[i] = spec.NewTCTrackByFolder(&track, track.Album)
}
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")
}
// TODO: support other play queue entries other than tracks
trackIDs := make([]int, 0, len(tracks))
for _, id := range tracks {
if id.Type == specid.Track {
trackIDs = append(trackIDs, id.Value)
}
}
user := r.Context().Value(CtxUser).(*db.User)
queue := &db.PlayQueue{UserID: user.ID}
c.DB.Where(queue).First(queue)
queue.Current = params.GetOrID("current", specid.ID{}).Value
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)
id, err := params.GetID("id")
if err != nil {
return spec.NewError(10, "provide an `id` parameter")
}
track := &db.Track{}
err = c.DB.
Where("id=?", id.Value).
Preload("Album").
Preload("Album.TagArtist").
First(track).
Error
if errors.Is(err, gorm.ErrRecordNotFound) {
return spec.NewError(10, "couldn't find a track with that id")
}
sub := spec.NewResponse()
sub.Track = spec.NewTrackByTags(track, track.Album)
return sub
}
func (c *Controller) ServeGetRandomSongs(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
var tracks []*db.Track
q := c.DB.DB.
Limit(params.GetOrInt("size", 10)).
Preload("Album").
Preload("Album.TagArtist").
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 := c.getMusicFolder(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))
for i, track := range tracks {
sub.RandomTracks.List[i] = spec.NewTrackByTags(track, track.Album)
}
return sub
}
func (c *Controller) ServeJukebox(r *http.Request) *spec.Response {
params := r.Context().Value(CtxParams).(params.Params)
getTracks := func() []*db.Track {
var tracks []*db.Track
ids, err := params.GetIDList("id")
if err != nil {
return tracks
}
for _, id := range ids {
track := &db.Track{}
c.DB.Preload("Album").First(track, id.Value)
if track.ID != 0 {
tracks = append(tracks, track)
}
}
return tracks
}
getStatus := func() spec.JukeboxStatus {
status := c.Jukebox.GetStatus()
return spec.JukeboxStatus{
CurrentIndex: status.CurrentIndex,
Playing: status.Playing,
Gain: status.Gain,
Position: status.Position,
}
}
getStatusTracks := func() []*spec.TrackChild {
tracks := c.Jukebox.GetTracks()
ret := make([]*spec.TrackChild, len(tracks))
for i, track := range tracks {
ret[i] = spec.NewTrackByTags(track, track.Album)
}
return ret
}
switch act, _ := params.Get("action"); act {
case "set":
c.Jukebox.SetTracks(getTracks())
case "add":
c.Jukebox.AddTracks(getTracks())
case "clear":
c.Jukebox.ClearTracks()
case "remove":
index, err := params.GetInt("index")
if err != nil {
return spec.NewError(10, "please provide an id for remove actions")
}
c.Jukebox.RemoveTrack(index)
case "stop":
c.Jukebox.Stop()
case "start":
c.Jukebox.Start()
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")
c.Jukebox.Skip(index, offset)
case "get":
sub := spec.NewResponse()
sub.JukeboxPlaylist = &spec.JukeboxPlaylist{
JukeboxStatus: getStatus(),
List: getStatusTracks(),
}
return sub
}
// all actions except get are expected to return a status
sub := spec.NewResponse()
status := getStatus()
sub.JukeboxStatus = &status
return sub
}