consolidate external text trimming

server/ctrlsubsonic/handlers_by_tags.go

@@ -333,7 +333,7 @@ func (c *Controller) ServeGetArtistInfoTwo(r *http.Request) *spec.Response {
 		return sub
 	}
 
-	sub.ArtistInfoTwo.Biography = info.Biography
+	sub.ArtistInfoTwo.Biography = spec.CleanExternalText(info.Biography)
 	sub.ArtistInfoTwo.MusicBrainzID = info.MusicBrainzID
 	sub.ArtistInfoTwo.LastFMURL = info.LastFMURL
 
@@ -409,7 +409,7 @@ func (c *Controller) ServeGetAlbumInfoTwo(r *http.Request) *spec.Response {
 		return sub
 	}
 
-	sub.AlbumInfo.Notes = info.Notes
+	sub.AlbumInfo.Notes = spec.CleanExternalText(info.Notes)
 	sub.AlbumInfo.MusicBrainzID = info.MusicBrainzID
 	sub.AlbumInfo.LastFMURL = info.LastFMURL
 

server/ctrlsubsonic/spec/construct_podcast.go

@@ -2,19 +2,14 @@ package spec
 
 import (
 	"go.senan.xyz/gonic/db"
-	"jaytaylor.com/html2text"
 )
 
 func NewPodcastChannel(p *db.Podcast) *PodcastChannel {
-	desc, err := html2text.FromString(p.Description, html2text.Options{TextOnly: true})
-	if err != nil {
-		desc = ""
-	}
 	ret := &PodcastChannel{
 		ID:               p.SID(),
 		OriginalImageURL: p.ImageURL,
 		Title:            p.Title,
-		Description:      desc,
+		Description:      CleanExternalText(p.Description),
 		URL:              p.URL,
 		CoverArt:         p.SID(),
 		Status:           "skipped",
@@ -30,17 +25,13 @@ func NewPodcastEpisode(pe *db.PodcastEpisode) *PodcastEpisode {
 	if pe == nil {
 		return nil
 	}
-	desc, err := html2text.FromString(pe.Description, html2text.Options{TextOnly: true})
-	if err != nil {
-		desc = ""
-	}
 	r := &PodcastEpisode{
 		ID:          pe.SID(),
 		StreamID:    pe.SID(),
 		ContentType: pe.MIME(),
 		ChannelID:   pe.PodcastSID(),
 		Title:       pe.Title,
-		Description: desc,
+		Description: CleanExternalText(pe.Description),
 		Status:      string(pe.Status),
 		CoverArt:    pe.PodcastSID(),
 		PublishDate: *pe.PublishDate,

server/ctrlsubsonic/spec/spec.go

@@ -2,11 +2,13 @@ package spec
 
 import (
 	"fmt"
+	"regexp"
 	"strings"
 	"time"
 
 	"go.senan.xyz/gonic"
 	"go.senan.xyz/gonic/server/ctrlsubsonic/specid"
+	"jaytaylor.com/html2text"
 )
 
 // https://web.archive.org/web/20220707025402/https://www.subsonic.org/pages/api.jsp
@@ -472,3 +474,18 @@ func formatRating(rating float64) string {
 func formatExt(ext string) string {
 	return strings.TrimPrefix(ext, ".")
 }
+
+var doublePuncExpr = regexp.MustCompile(`\.\s+\.\s+`)
+var licenceExpr = regexp.MustCompile(`(?i)\buser-contributed text.*`)
+var readMoreExpr = regexp.MustCompile(`(?i)\bread more on.*`)
+
+func CleanExternalText(text string) string {
+	text, _ = html2text.FromString(text, html2text.Options{TextOnly: true})
+	text = licenceExpr.ReplaceAllString(text, "")
+	text = readMoreExpr.ReplaceAllString(text, "")
+	text = doublePuncExpr.ReplaceAllString(text, ". ")
+	text = strings.ReplaceAll(text, " .", ".")
+	text = strings.Join(strings.Fields(text), " ")
+	text = strings.TrimSpace(text)
+	return text
+}