Add share download endpoint

server/public/public.go

@@ -0,0 +1,67 @@
+package public
+
+import (
+	"net/http"
+	"path"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/chi/v5/middleware"
+	"github.com/navidrome/navidrome/conf"
+	"github.com/navidrome/navidrome/consts"
+	"github.com/navidrome/navidrome/core"
+	"github.com/navidrome/navidrome/core/artwork"
+	"github.com/navidrome/navidrome/log"
+	"github.com/navidrome/navidrome/model"
+	"github.com/navidrome/navidrome/server"
+	"github.com/navidrome/navidrome/ui"
+)
+
+type Router struct {
+	http.Handler
+	artwork       artwork.Artwork
+	streamer      core.MediaStreamer
+	archiver      core.Archiver
+	share         core.Share
+	assetsHandler http.Handler
+	ds            model.DataStore
+}
+
+func New(ds model.DataStore, artwork artwork.Artwork, streamer core.MediaStreamer, share core.Share, archiver core.Archiver) *Router {
+	p := &Router{ds: ds, artwork: artwork, streamer: streamer, share: share, archiver: archiver}
+	shareRoot := path.Join(conf.Server.BasePath, consts.URLPathPublic)
+	p.assetsHandler = http.StripPrefix(shareRoot, http.FileServer(http.FS(ui.BuildAssets())))
+	p.Handler = p.routes()
+
+	return p
+}
+
+func (p *Router) routes() http.Handler {
+	r := chi.NewRouter()
+
+	r.Group(func(r chi.Router) {
+		r.Use(server.URLParamsMiddleware)
+		r.Group(func(r chi.Router) {
+			if conf.Server.DevArtworkMaxRequests > 0 {
+				log.Debug("Throttling public images endpoint", "maxRequests", conf.Server.DevArtworkMaxRequests,
+					"backlogLimit", conf.Server.DevArtworkThrottleBacklogLimit, "backlogTimeout",
+					conf.Server.DevArtworkThrottleBacklogTimeout)
+				r.Use(middleware.ThrottleBacklog(conf.Server.DevArtworkMaxRequests, conf.Server.DevArtworkThrottleBacklogLimit,
+					conf.Server.DevArtworkThrottleBacklogTimeout))
+			}
+			r.HandleFunc("/img/{id}", p.handleImages)
+		})
+		if conf.Server.EnableSharing {
+			r.HandleFunc("/s/{id}", p.handleStream)
+			r.HandleFunc("/d/{id}", p.handleDownloads)
+			r.HandleFunc("/{id}", p.handleShares)
+			r.HandleFunc("/", p.handleShares)
+			r.Handle("/*", p.assetsHandler)
+		}
+	})
+	return r
+}
+
+func ShareURL(r *http.Request, id string) string {
+	uri := path.Join(consts.URLPathPublic, id)
+	return server.AbsoluteURL(r, uri, nil)
+}