refactor: add validity checks for names and paths (#242)

src/Utils.h

@@ -0,0 +1,53 @@
+/**
+ * (C) 2016 - 2017 KISTLER INSTRUMENTE AG, Winterthur, Switzerland
+ * (C) 2016 - 2022 Stanislav Angelovic <angelovic.s@gmail.com>
+ *
+ * @file Utils.h
+ *
+ * Created on: Feb 9, 2022
+ * Project: sdbus-c++
+ * Description: High-level D-Bus IPC C++ library based on sd-bus
+ *
+ * This file is part of sdbus-c++.
+ *
+ * sdbus-c++ is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * sdbus-c++ is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with sdbus-c++. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SDBUS_CXX_INTERNAL_UTILS_H_
+#define SDBUS_CXX_INTERNAL_UTILS_H_
+
+#include <sdbus-c++/Error.h>
+#include <systemd/sd-bus.h>
+
+#if LIBSYSTEMD_VERSION>=246
+#define SDBUS_CHECK_OBJECT_PATH(_PATH)                                                                                              \
+    SDBUS_THROW_ERROR_IF(!sd_bus_object_path_is_valid(_PATH.c_str()), "Invalid object path '" + _PATH + "' provided", EINVAL)       \
+    /**/
+#define SDBUS_CHECK_INTERFACE_NAME(_NAME)                                                                                           \
+    SDBUS_THROW_ERROR_IF(!sd_bus_interface_name_is_valid(_NAME.c_str()), "Invalid interface name '" + _NAME + "' provided", EINVAL) \
+    /**/
+#define SDBUS_CHECK_SERVICE_NAME(_NAME)                                                                                             \
+    SDBUS_THROW_ERROR_IF(!sd_bus_service_name_is_valid(_NAME.c_str()), "Invalid service name '" + _NAME + "' provided", EINVAL)     \
+    /**/
+#define SDBUS_CHECK_MEMBER_NAME(_NAME)                                                                                              \
+    SDBUS_THROW_ERROR_IF(!sd_bus_member_name_is_valid(_NAME.c_str()), "Invalid member name '" + _NAME + "' provided", EINVAL)       \
+    /**/
+#else
+#define SDBUS_CHECK_OBJECT_PATH(_PATH)
+#define SDBUS_CHECK_INTERFACE_NAME(_NAME)
+#define SDBUS_CHECK_SERVICE_NAME(_NAME)
+#define SDBUS_CHECK_MEMBER_NAME(_NAME)
+#endif
+
+#endif /* SDBUS_CXX_INTERNAL_UTILS_H_ */