Add folder type checks in publicFileDownloadHandler and publicFileViewHandler

go_cloud/internal/http/routes.go

@@ -3099,6 +3099,12 @@ func publicFileDownloadHandler(w http.ResponseWriter, r *http.Request, db *datab
 		return
 	}
 
+	// Check if it's a folder - cannot download folders
+	if file.Type == "folder" {
+		errors.WriteError(w, errors.CodeInvalidArgument, "Cannot download folders", http.StatusBadRequest)
+		return
+	}
+
 	// Determine MIME type
 	mimeType := getMimeType(file.Name)
 
@@ -3211,6 +3217,12 @@ func publicFileViewHandler(w http.ResponseWriter, r *http.Request, db *database.
 		return
 	}
 
+	// Check if it's a folder - cannot view folders directly
+	if file.Type == "folder" {
+		errors.WriteError(w, errors.CodeInvalidArgument, "Cannot view folders", http.StatusBadRequest)
+		return
+	}
+
 	// Determine MIME type
 	mimeType := getMimeType(file.Name)