photo-object-storage: MinIO on .13 (9010/9011), Go upload+serve /photos, admin S3 disk + Filament upload, migrated, deployed

frontend/internal/handlers/photo.go

@@ -0,0 +1,39 @@
+package handlers
+
+import (
+	"errors"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/minio/minio-go/v7"
+)
+
+// ServePhoto streams a photo object from object storage.
+// Used by tags.photo_url values of the form "/photos/tags/{id}.{ext}".
+func (a *App) ServePhoto(w http.ResponseWriter, r *http.Request) {
+	key := strings.TrimPrefix(r.PathValue("key"), "/")
+	if key == "" || a.Storage == nil {
+		http.NotFound(w, r)
+		return
+	}
+
+	obj, ct, err := a.Storage.Get(r.Context(), key)
+	if err != nil {
+		var me minio.ErrorResponse
+		if errors.As(err, &me) && me.Code == "NoSuchKey" {
+			http.NotFound(w, r)
+			return
+		}
+		http.Error(w, "photo unavailable", http.StatusInternalServerError)
+		return
+	}
+	defer obj.Close()
+
+	if ct == "" {
+		ct = "application/octet-stream"
+	}
+	w.Header().Set("Content-Type", ct)
+	w.Header().Set("Cache-Control", "public, max-age=86400")
+	_, _ = io.Copy(w, obj)
+}