+/** Invalid filename characters **/
+#define INVALID_CHARACTERS "\"*/:<>?\\|. "
+/** The same as INVALID_CHARACTERS, except escaped for use in JSON strings **/
+#define INVALID_CHARACTERS_JSON "\\\"*/:<>?\\\\|. "
+/** The username of a user with no authentication (DEBUG ONLY) **/
+#define NOAUTH_USERNAME "_anonymous_noauth"
+