More work on Shares

server/public/handle_shares.go

@@ -0,0 +1,64 @@
+package public
+
+import (
+	"errors"
+	"net/http"
+
+	"github.com/navidrome/navidrome/core/auth"
+	"github.com/navidrome/navidrome/log"
+	"github.com/navidrome/navidrome/model"
+	"github.com/navidrome/navidrome/server"
+	"github.com/navidrome/navidrome/ui"
+)
+
+func (p *Router) handleShares(w http.ResponseWriter, r *http.Request) {
+	id := r.URL.Query().Get(":id")
+	if id == "" {
+		http.Error(w, "invalid id", http.StatusBadRequest)
+		return
+	}
+
+	// If requested file is a UI asset, just serve it
+	_, err := ui.BuildAssets().Open(id)
+	if err == nil {
+		p.assetsHandler.ServeHTTP(w, r)
+		return
+	}
+
+	// If it is not, consider it a share ID
+	s, err := p.share.Load(r.Context(), id)
+	switch {
+	case errors.Is(err, model.ErrNotFound):
+		log.Error(r, "Share not found", "id", id, err)
+		http.Error(w, "Share not found", http.StatusNotFound)
+	case err != nil:
+		log.Error(r, "Error retrieving share", "id", id, err)
+		http.Error(w, "Error retrieving share", http.StatusInternalServerError)
+	}
+	if err != nil {
+		return
+	}
+
+	s = p.mapShareInfo(s)
+	server.IndexWithShare(p.ds, ui.BuildAssets(), s)(w, r)
+}
+
+func (p *Router) mapShareInfo(s *model.Share) *model.Share {
+	mapped := &model.Share{
+		Description: s.Description,
+		Tracks:      s.Tracks,
+	}
+	for i := range s.Tracks {
+		// TODO Use Encode(Artwork)ID?
+		claims := map[string]any{"id": s.Tracks[i].ID}
+		if s.Format != "" {
+			claims["f"] = s.Format
+		}
+		if s.MaxBitRate != 0 {
+			claims["b"] = s.MaxBitRate
+		}
+		id, _ := auth.CreateExpiringPublicToken(s.ExpiresAt, claims)
+		mapped.Tracks[i].ID = id
+	}
+	return mapped
+}