fix(subsonic): send valid content-type with http.ServeStream

server/ctrlsubsonic/spec/construct_by_folder.go

@@ -56,7 +56,7 @@ func NewTCTrackByFolder(t *db.Track, parent *db.Album) *TrackChild {
 	trCh := &TrackChild{
 		ID:          t.SID(),
 		ContentType: t.MIME(),
-		Suffix:      t.Ext(),
+		Suffix:      formatExt(t.Ext()),
 		Size:        t.Size,
 		Artist:      t.TagTrackArtist,
 		Title:       t.TagTitle,

server/ctrlsubsonic/spec/construct_by_tags.go

@@ -38,7 +38,7 @@ func NewTrackByTags(t *db.Track, album *db.Album) *TrackChild {
 	ret := &TrackChild{
 		ID:          t.SID(),
 		ContentType: t.MIME(),
-		Suffix:      t.Ext(),
+		Suffix:      formatExt(t.Ext()),
 		ParentID:    t.AlbumSID(),
 		CreatedAt:   t.CreatedAt,
 		Size:        t.Size,

server/ctrlsubsonic/spec/construct_podcast.go

@@ -36,7 +36,7 @@ func NewPodcastEpisode(e *db.PodcastEpisode) *PodcastEpisode {
 		Genre:       "Podcast",
 		Duration:    e.Length,
 		Year:        e.PublishDate.Year(),
-		Suffix:      e.Ext(),
+		Suffix:      formatExt(e.Ext()),
 		BitRate:     e.Bitrate,
 		IsDir:       false,
 		Path:        e.Path,

server/ctrlsubsonic/spec/spec.go

@@ -2,6 +2,7 @@ package spec
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
 	"go.senan.xyz/gonic"
@@ -422,3 +423,7 @@ func formatRating(rating float64) string {
 	}
 	return fmt.Sprintf("%.2f", rating)
 }
+
+func formatExt(ext string) string {
+	return strings.TrimPrefix(ext, ".")
+}