release version 1.3.2

cdoc for logging class

.gitlab-ci.yml

@@ -0,0 +1,17 @@
+image: luki42/dynuiprefresher_build:latest
+
+stages:
+  - build
+
+
+build:
+  stage: build
+  script:
+    - cmake -S . -B build
+    - cd build
+    - make
+    - make package
+  artifacts:
+    paths:
+      - "build/bin/*"
+      - "build/packages/*"

.idea/.gitignore

@@ -1,2 +0,0 @@
-# Default ignored files
-/workspace.xml

.idea/iprefresher.iml

@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module classpath="CMake" type="CPP_MODULE" version="4" />

.idea/misc.xml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
-  <component name="JavaScriptSettings">
-    <option name="languageLevel" value="ES6" />
-  </component>
-</project>

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/iprefresher.iml" filepath="$PROJECT_DIR$/.idea/iprefresher.iml" />
-    </modules>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

CMakeLists.txt

@@ -1,56 +1,29 @@
+# @author Lukas Heiligenbrunner
+# main CMake file
+#
+# Build lib dependencies:
+## libcurl (with sources)
+## libconfig (with sources)
+#
+# documenation build needs doxygen to be installed.
+
 cmake_minimum_required(VERSION 3.13)
 project(iprefresher DESCRIPTION "Dynu ip refresher")
 
-set(CMAKE_CXX_STANDARD 17)
+SET(CMAKE_CXX_STANDARD 17)
 
-set(CMAKE_BUILD_TYPE Release) # manually set build type (Release / Debug)
-set(LIB_METHOD STATIC) #SHARED / STATIC
-set(WinBuild false)
-set(PROJECT_VERSION 1.2.2)
+SET(CMAKE_BUILD_TYPE Release) # manually SET build type (Release / Debug)
+SET(LIB_METHOD STATIC) #SHARED / STATIC
+SET(PROJECT_VERSION 1.3.2)
 option(BUILD_DOC "Build documentation" ON)
 
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
-#set up toolchain
-
-if (${WinBuild})
-    set(LIBSUFFIX .dll)
-    set(SUFFIX .exe)
-
-    set(CMAKE_SYSTEM_NAME Windows)
-    set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
-    #set(TOOLCHAIN_PREFIX i686-w64-mingw32)
-
-    # cross compilers to use for C and C++
-    set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
-    set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
-    set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
-
-    # target environment on the build host system
-    set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX} /usr/lib/gcc/${TOOLCHAIN_PREFIX}/9.2.1)
-
-
-    # modify default behavior of FIND_XXX() commands to
-    # search for headers/libs in the target environment and
-    # search for programs in the build host environment
-    set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
-    set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
-    set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-
-    #    set(CMAKE_CXX_STANDARD_LIBRARIES -lcurl -lpthread -static-libgcc -static-libstdc++ -lcrypto -lssl -lws2_32 -std=c++11 -static -DCURL_STATICLIB)
-#    set(CMAKE_CXX_STANDARD_LIBRARIES "-static-libgcc -static-libstdc++  -DCURL_STATICLIB -lstdc++ -lwsock32 -lws2_32 ${CMAKE_CSS_STANDARD_LIBRARIES}")
-    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -DCURL_STATICLIB -static -lpthread")
-    #    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
-    #    set(CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS)
-    #add_definitions(-DCURL_STATICLIB)
-else ()
-    set(LIBSUFFIX .so)
-    set(SUFFIX "")
-endif ()
+SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 # config libs
 message(STATUS "Config of Libraries")
+# libcurl
 find_package(CURL REQUIRED)
 if (CURL_FOUND)
     message(STATUS "Found CURL version: ${CURL_VERSION_STRING}")
@@ -59,49 +32,83 @@ if (CURL_FOUND)
 else ()
     message(FATAL_ERROR "Could not find CURL")
 endif ()
-message("")
 include_directories(${CURL_INCLUDE_DIR} inc)
 
+# libconfig
+FIND_PATH(LIBCONFIG_INCLUDE_DIR libconfig.h++ /usr/include /usr/local/include) # search for libconfig include headers
+FIND_LIBRARY(CONFIG++_LIBRARY NAMES config++ PATH /usr/lib /usr/local/lib) # search for actual lib
+
+IF (CONFIG++_LIBRARY AND LIBCONFIG_INCLUDE_DIR)
+    MESSAGE(STATUS "Found Config++: ${CONFIG++_LIBRARY}")
+ELSE (CONFIG++_LIBRARY AND LIBCONFIG_INCLUDE_DIR)
+    IF (NOT LIBCONFIG_INCLUDE_DIR)
+        MESSAGE(FATAL_ERROR "Could not find LibConfig++ header file! Try to install 'libconfig-devel'")
+    ENDIF (NOT LIBCONFIG_INCLUDE_DIR)
+
+    IF (NOT CONFIG++_LIBRARY)
+        MESSAGE(FATAL_ERROR "Could not find LibConfig++ library file! Try to install 'libconfig'")
+    ENDIF (NOT CONFIG++_LIBRARY)
+ENDIF (CONFIG++_LIBRARY AND LIBCONFIG_INCLUDE_DIR)
+
+include_directories(${LIBCONFIG_INCLUDE_DIR})
+
+message("")
+
+#read sample config
+FILE(READ ${CMAKE_SOURCE_DIR}/config/iprefresher.cfg SAMPLECONFIG)
 #add version header
 FILE(WRITE ${CMAKE_SOURCE_DIR}/inc/Version.h
-        "\#pragma once\nclass Version {\npublic:\n  static const std::string VERSION;\n};\n\n std::string const Version::VERSION = \"${PROJECT_VERSION}\";"
+        "\#pragma once
+#include <string>
+namespace Version {
+  const std::string VERSION = \"${PROJECT_VERSION}\";
+  const std::string SAMPLECONFIG = R\"(${SAMPLECONFIG})\";
+}"
+        )
+
+# generate post script for checking if configuration already exists
+FILE(WRITE ${CMAKE_SOURCE_DIR}/postinst
+        "#!/bin/bash
+if [ ! -f /etc/iprefresher.cfg ]; then
+    cat > /etc/iprefresher.cfg <<- EOM
+${SAMPLECONFIG}EOM
+fi\n"
         )
 
 add_library(api ${LIB_METHOD}
         src/api/API.cpp
-
         src/api/TelegramAPI.cpp
-
         src/api/DynuAPI.cpp
-
-        src/api/IPAPI.cpp
-        )
+        src/api/IPAPI.cpp)
 
 add_library(logger ${LIB_METHOD}
         src/FileLogger.cpp
-        src/Logger.cpp
-        )
+        src/Logger.cpp)
 
 
-set(SOURCE
+SET(SOURCE
         src/main.cpp
         src/IPRefresher.cpp
-        )
+        src/Config.cpp)
 
 add_executable(iprefresher ${SOURCE})
 
 # LINK generated LIBS #
-target_link_libraries(iprefresher api logger ${CURL_LIBRARIES})
+target_link_libraries(iprefresher api logger ${CURL_LIBRARIES} config++)
 
 # INSTALL to SYSTEM #
-install(TARGETS iprefresher DESTINATION bin)
-install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/iprefresher.service DESTINATION /lib/systemd/system)
+SET(CMAKE_INSTALL_PREFIX "/")
+# install binaries
+install(TARGETS iprefresher DESTINATION usr/bin)
+# install systemd service and enable it
+install(FILES service/iprefresher.service DESTINATION lib/systemd/system)
 
 
 IF (UNIX)
     message(STATUS "config of Package build")
     SET(CPACK_DEB_COMPONENT_INSTALL 1)
     SET(CPACK_OUTPUT_FILE_PREFIX packages)
+    SET(CPACK_PACKAGING_INSTALL_PREFIX "/") # no prefix for package structure
 
     FIND_PROGRAM(RPMBUILD_EXECUTABLE rpmbuild)
     FIND_PROGRAM(DEB_EXECUTABLE dpkg)
@@ -111,8 +118,10 @@ IF (UNIX)
     #check if rpm build is possible
     if (NOT ${RPMBUILD_EXECUTABLE} STREQUAL "RPMBUILD_EXECUTABLE-NOTFOUND")
         message(STATUS "found rpm build executeable --> able to build rpm")
-        set(CPACK_GENERATOR "${CPACK_GENERATOR};RPM")
-        set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION "/lib/systemd/system" "/lib/systemd" "/lib") # --> needed to not override existing folders
+        SET(CPACK_GENERATOR "${CPACK_GENERATOR};RPM")
+        SET(CPACK_RPM_POST_INSTALL_SCRIPT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/postinst")
+        SET(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST_ADDITION "/lib/systemd/system" "/lib/systemd" "/lib" "/usr/local/bin" "/usr/local") # --> needed to not override existing folders
+        set(CPACK_RPM_PACKAGE_REQUIRES "libcurl,libconfig")
     else (NOT ${RPMBUILD_EXECUTABLE} STREQUAL "RPMBUILD_EXECUTABLE-NOTFOUND")
         message(STATUS "not found rpm build tools --> not building rpm")
     endif (NOT ${RPMBUILD_EXECUTABLE} STREQUAL "RPMBUILD_EXECUTABLE-NOTFOUND")
@@ -120,7 +129,9 @@ IF (UNIX)
     #check if deb build is possible
     if (NOT ${DEB_EXECUTABLE} STREQUAL "DEB_EXECUTABLE-NOTFOUND")
         message(STATUS "found deb build tools --> able to build deb")
-        set(CPACK_GENERATOR "${CPACK_GENERATOR};DEB")
+        SET(CPACK_GENERATOR "${CPACK_GENERATOR};DEB") # add deb generator
+        set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA "${CMAKE_CURRENT_SOURCE_DIR}/postinst") # set post inst file
+        set(CPACK_DEBIAN_PACKAGE_DEPENDS "libcurl4,libconfig++9v5") # add debian dependencies
     else (NOT ${DEB_EXECUTABLE} STREQUAL "DEB_EXECUTABLE-NOTFOUND")
         message(STATUS "not found  deb build tools --> not building deb")
     endif (NOT ${DEB_EXECUTABLE} STREQUAL "DEB_EXECUTABLE-NOTFOUND")
@@ -132,14 +143,10 @@ IF (UNIX)
     SET(CPACK_PACKAGE_DESCRIPTION "IPrefresher to refresh Dynu ip address and notify user via Telegram")
     SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "IPrefresher to refresh Dynu ip address and notify user via Telegram")
     SET(CPACK_PACKAGE_VENDOR "Lukas Heilgienbrunner")
-    SET(CPACK_PACKAGE_VERSION_MAJOR "1")
-    SET(CPACK_PACKAGE_VERSION_MINOR "2")
-    set(CPACK_PACKAGE_VERSION_PATCH "1")
     SET(CPACK_PACKAGE_VERSION "${PROJECT_VERSION}")
     SET(CPACK_SOURCE_PACKAGE_FILE_NAME "${CMAKE_PROJECT_NAME}-${PROJECT_VERSION}")
-    SET(CPACK_PACKAGE_CONTACT "Lukas Heiligenbrunner <ultimategameingcookie@gmail.com>")
+    SET(CPACK_PACKAGE_CONTACT "Lukas Heiligenbrunner <lukas.heiligenbrunner@gmail.com>")
     SET(CPACK_PACKAGE_SECTION "games")
-    set(CPACK_PACKAGE_DEPENDS "libcurl (>= 7.0.0-1)")
 
     INCLUDE(CPack)
 
@@ -151,14 +158,13 @@ message("")
 ENDIF (UNIX)
 
 # check if Doxygen is installed
-
 if (BUILD_DOC)
     message(STATUS "config of DOxygen build")
     find_package(Doxygen)
     if (DOXYGEN_FOUND)
-        # set input and output files
-        set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile.in)
-        set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
+        # SET input and output files
+        SET(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile.in)
+        SET(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
 
         # request to configure the file
         configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
@@ -170,7 +176,6 @@ if (BUILD_DOC)
                 COMMENT "Generating API documentation with Doxygen"
                 VERBATIM)
         message(STATUS "Successfully configured doxygen")
-
     else (DOXYGEN_FOUND)
         message(STATUS "Doxygen need to be installed to generate the doxygen documentation")
     endif (DOXYGEN_FOUND)

README.md

@@ -1,4 +1,19 @@
 # DynuIPRefresher
+A lightweight C++ application to setup a service for refreshing a dynamic IP to the Dynu servers. 
+Dynu.com is a free DDns service and provides an API.
+
+## Installation
+Download the latest Release at [Release_Page](https://github.com/Lukas-Heiligenbrunner/DynuIPRefresher/releases).
+I'm providing executables for Debian/Ubuntu (.deb) and RHEL/Debian (.rpm). 
+But you can still compile the code my your own (see build section).
+
+## Configuration
+There is a configuration file `/etc/iprefresher.cfg` where you have to specify the DYNU API key (get it from their homepage), the domainid and your domain.
+Furthermore, you can optionally specify a Telegram API key and a Chat ID if you want to be notfied when your local ip changes.
+
+To enable and start the service: 
+`systemctl enable iprefresher.service` and `systemctl start iprefresher.service`
+
 
 ## Build
 ## Basic Build
@@ -9,13 +24,27 @@
 ### install build dependencies
 
 `libcurl`
-`libcurl-devel`
+`libconfig`
 
-Debian:
+#### Debian:
 `apt install libcurl4-openssl-dev`
 
-Fedora:
-`dnf install libcurl-devel`
+#### Fedora:
+`dnf install libcurl-devel libconfig-devel`
+
+#### Alpine Linux:
+Compiler dependencies:
+
+`apk add make cmake g++`
+
+Lib dependencies:
+
+`apk add libcurl curl-dev libconfig libconfig-dev`
+
+Packaging dependencies:
+
+`apk add dpkg rpm`
+
 
 #### dependencies for package build
 `dpkg` --> debian/ubuntu package
@@ -35,7 +64,7 @@ cd into downloaded files and Generate makefiles:
 
 `make install`
 
-[root] or create Linux packages
+(optional) create Linux packages
 
 `make package`
 

config/iprefresher.cfg

@@ -0,0 +1,12 @@
+# Dynu IP refresher config
+# 2020
+# Lukas Heiligenbrunner
+
+## DYNU API Config
+dynuapikey = ""
+domainid = ""
+domainname = ""
+
+## Telegram API Config (optional)
+#telegramApiKey = ""
+#chatId = ""

inc/Config.h

@@ -0,0 +1,34 @@
+//
+// Created by lukas on 11.02.20.
+//
+
+#pragma once
+
+#include <string>
+
+class Config {
+public:
+    static std::string dynuapikey;
+
+    static std::string domainid; //id of the dynu domain
+    static std::string domainname;
+
+    static std::string telegramApiKey;
+    static std::string chatId;
+
+    /**
+     * read configuration out of config file
+     *
+     * @return success of config read
+     */
+    static bool readCredentials();
+
+    /**
+     * validate config file
+     *
+     * @return validity of config file
+     */
+    static bool validateConfig();
+
+private:
+};

inc/FileLogger.h

@@ -1,17 +1,13 @@
 //
 // Created by lukas on 05.05.19.
 //
+
 #pragma once
 
 #include <string>
+
 class FileLogger {
 public:
-    /**
-     * log messages to logfile
-     * @param text message
-     */
-    void logToLogfile(std::string text);
-
     /**
      * safe ip to temp file
      * @param ip ip address to save

inc/IPRefresher.h

@@ -11,6 +11,15 @@ public:
      */
     void checkIPAdress(bool force);
 
+    /**
+     * default constructor
+     */
     IPRefresher();
+
+    /**
+     * start the service in loop mode
+     * every 5 minutes the ip is checked an refreshed (needed for .service)
+     * @param loop true->loopmode on
+     */
     explicit IPRefresher(bool loop);
 };

inc/Logger.h

@@ -8,15 +8,40 @@
 
 class Logger {
 public:
+    /**
+     * a debug message
+     * @param message message
+     */
     static void debug(std::string message);
+
+    /**
+     * a default message
+     * @param message message
+     */
     static void message(std::string message);
+
+    /**
+     * a warning message
+     * @param message message
+     */
     static void warning(std::string message);
+
+    /**
+     * a error message
+     * @param message message
+     */
     static void error(std::string message);
 
-    static void log(std::string &message, int level);
+    /**
+     * a log message with manual level set
+     * @param message message
+     * @param level loglevel (1-4) or predefined labels
+     */
+    static void log(const std::string &message, int level);
 
-    static const int Debug;
-    static const int Message;
-    static const int Warning;
-    static const int Error;
+
+    static const int Debug = 4;
+    static const int Message = 3;
+    static const int Warning = 2;
+    static const int Error = 1;
 };

inc/api/DynuAPI.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-
 #include "API.h"
 
 class DynuAPI : API{
@@ -15,9 +14,17 @@ public:
      * @return request status
      */
     int refreshIp(std::string ip);
-private:
-    const std::string dynuapikey = "88vNpMfDhMM2YYDNfWR1DNYfRX9W6fYg";
 
-    const std::string domainid = "8506047"; //id of the dynu domain
-    const std::string domainname = "luki.dynu.net";
+    /**
+     * init Telegram api with apikey and chatid
+     * @param dynuApiKey Dynu Api key
+     * @param domainId ID of domain received by Dynu
+     * @param domainName domainname to refresh
+     */
+    void init(const std::string& dynuApiKey, const std::string& domainId, const std::string& domainName);
+private:
+    std::string dynuapikey; // Dynu API key
+
+    std::string domainid; //id of the dynu domain
+    std::string domainname;
 };

inc/api/Hashmap.h

@@ -4,7 +4,6 @@
 
 #pragma once
 
-
 #include <iostream>
 #include <vector>
 

inc/api/TelegramAPI.h

@@ -14,7 +14,7 @@ public:
      * send telegram Message to predefined destination
      * @param text message
      */
-    void sendMessage(std::string text);
+    int sendMessage(const std::string& text);
 
     /**
      * init Telegram api with apikey and chatid

src/Config.cpp

@@ -0,0 +1,108 @@
+//
+// Created by lukas on 11.02.20.
+//
+
+#include <Config.h>
+#include <Logger.h>
+
+#include <iostream>
+#include <cstring>
+#include <fstream>
+#include <libconfig.h++>
+#include <Version.h>
+
+std::string Config::dynuapikey;
+std::string Config::domainid; //id of the dynu domain
+std::string Config::domainname;
+
+std::string Config::telegramApiKey;
+std::string Config::chatId;
+
+bool Config::readCredentials() {
+    libconfig::Config cfg;
+    try {
+        cfg.readFile("/etc/iprefresher.cfg");
+    }
+    catch (const libconfig::FileIOException &fioex) {
+        std::cout << "I/O error while reading config file." << std::endl << "creating new config file!" << std::endl;
+
+        std::ofstream myfile;
+        myfile.open("/etc/iprefresher.cfg");
+        if (myfile.is_open()) {
+            myfile << Version::SAMPLECONFIG;
+            myfile.close();
+        } else {
+            std::cout << "error creating file" << std::endl;
+        }
+
+        return false;
+    }
+    catch (const libconfig::ParseException &pex) {
+        std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
+                  << " - " << pex.getError() << std::endl;
+        return false;
+    }
+
+    try {
+        // needed parameters
+        dynuapikey = (std::string) cfg.lookup("dynuapikey");
+        domainid = (std::string) cfg.lookup("domainid");
+        domainname = (std::string) cfg.lookup("domainname");
+        // optional parameters
+        telegramApiKey = (std::string) cfg.lookup("telegramApiKey");
+        chatId = (std::string) cfg.lookup("chatId");
+    }
+    catch (const libconfig::SettingNotFoundException &nfex) {
+        // triggered if setting is missing in config
+        if (!(std::strcmp("telegramApiKey", nfex.getPath()) == 0 || std::strcmp("chatId", nfex.getPath()) == 0)) {
+            std::cerr << "No '" << nfex.getPath() << "' setting in configuration file." << std::endl;
+        }
+    }
+    // check if needed values aren't empty
+    return !(Config::dynuapikey.empty() || Config::domainid.empty() || Config::domainname.empty());
+}
+
+bool Config::validateConfig() {
+    libconfig::Config cfg;
+    try {
+        Logger::message("reading config file");
+        cfg.readFile("/etc/iprefresher.cfg");
+    }
+    catch (const libconfig::FileIOException &fioex) {
+        Logger::warning("config file doesn't exist or permission denied!");
+        return false;
+    }
+    catch (const libconfig::ParseException &pex) {
+        std::cerr << "Parse error at " << pex.getFile() << ":" << pex.getLine()
+                  << " - " << pex.getError() << std::endl;
+        return false;
+    }
+    Logger::message("Syntax and Permission is OK");
+
+    try {
+        // needed parameters
+        if (((std::string) cfg.lookup("dynuapikey")).empty()) {
+            Logger::warning("required parameter dynuapikey seems to be empty.");
+            return false;
+        }
+        if (((std::string) cfg.lookup("domainid")).empty()) {
+            Logger::warning("required parameter domainid seems to be empty.");
+            return false;
+        }
+        if (((std::string) cfg.lookup("domainname")).empty()) {
+            Logger::warning("required parameter domainname seems to be empty.");
+            return false;
+        }
+        // optional parameters
+        cfg.lookup("telegramApiKey");
+        cfg.lookup("chatId");
+    }
+    catch (const libconfig::SettingNotFoundException &nfex) {
+        // triggered if setting is missing in config
+        if (!(std::strcmp("telegramApiKey", nfex.getPath()) == 0 || std::strcmp("chatId", nfex.getPath()) == 0)) {
+            std::cerr << "No '" << nfex.getPath() << "' setting in configuration file." << std::endl;
+            return false;
+        }
+    }
+    return true;
+}

src/FileLogger.cpp

@@ -3,9 +3,7 @@
 //
 
 #include <fstream>
-#include <ctime>
 #include <iostream>
-#include <sstream>
 
 #include "FileLogger.h"
 
@@ -28,22 +26,3 @@ std::string FileLogger::readip() {
 
     return ip;
 }
-
-void FileLogger::logToLogfile(std::string text) {
-    std::ofstream out;
-    out.open("dynurefresher.log", std::ios::out | std::ios::app);
-
-
-    std::time_t t = std::time(0);   // get time now
-    std::tm *now = std::localtime(&t);
-
-    std::stringstream logline;
-
-    logline << "[ " << (now->tm_year + 1900) << '-' << (now->tm_mon + 1) << '-' << now->tm_mday
-            << "_" << now->tm_hour << ":" << now->tm_min << ":" << now->tm_sec << " ] " << '\t' << text << std::endl;
-
-
-    out << logline.str();
-
-    out.close();
-}

src/IPRefresher.cpp

@@ -14,6 +14,8 @@
 #include <Logger.h>
 
 #include <IPRefresher.h>
+#include <Config.h>
+#include <Version.h>
 
 void IPRefresher::checkIPAdress(bool force) {
     FileLogger logger;
@@ -22,28 +24,25 @@ void IPRefresher::checkIPAdress(bool force) {
     std::string ip = ipapi.getGlobalIp();
 
     if (ip.empty()) {
-        //no internet connection
-        logger.logToLogfile("[WARNING] no internet connection");
+        //no internet connection (or other error)
         Logger::warning("no internet connection");
     } else {
         std::string oldip = logger.readip();
 
         if (oldip == ip && !force) {
             Logger::message("no change -- ip: " + ip);
-            logger.logToLogfile(" [INFO] no change -- ip: " + ip);
         } else {
-            logger.logToLogfile(" [INFO] ip changed! -- from :" + oldip + "to: " + ip);
             Logger::message("ip changed! -- from :" + oldip + "to: " + ip);
 
             DynuAPI dynu;
+            dynu.init(Config::dynuapikey, Config::domainid, Config::domainname);
 
             if (dynu.refreshIp(ip)) {
                 TelegramAPI tele;
-                tele.init("717213769:AAHan1nSXhUsxLJAN1Dv8Oc0z8wqwDdYPn4", "618154204");
+                tele.init(Config::telegramApiKey, Config::chatId);
                 tele.sendMessage(oldip + " moved to " + ip);
             } else {
                 //error
-                logger.logToLogfile(" [ERROR] failed to write ip to dynu api!");
                 Logger::error("failed to write ip to dynu api!");
             }
 
@@ -52,15 +51,20 @@ void IPRefresher::checkIPAdress(bool force) {
     }
 }
 
-IPRefresher::IPRefresher() {
-
-}
+IPRefresher::IPRefresher() = default;
 
 IPRefresher::IPRefresher(bool loop) {
+    if (loop) {
         Logger::message("startup of service");
-    while (loop) {
+        Logger::message("Version: " + Version::VERSION);
+        if (Config::readCredentials()) {
+            while (true) {
                 Logger::message("starting check");
                 checkIPAdress(false);
                 std::this_thread::sleep_for(std::chrono::milliseconds(300000));
             }
+        } else {
+            std::cout << "incorrect credentials!" << std::endl;
+        }
+    }
 }

src/Logger.cpp

@@ -7,29 +7,23 @@
 
 #include "Logger.h"
 
-
-const int Logger::Warning = 1;
-const int Logger::Debug = 2;
-const int Logger::Message = 3;
-const int Logger::Error = 4;
-
-void Logger::debug(std::string message) {
+void Logger::debug(const std::string message) {
     log(message, Logger::Debug);
 }
 
-void Logger::message(std::string message) {
+void Logger::message(const std::string message) {
     log(message, Logger::Message);
 }
 
-void Logger::warning(std::string message) {
+void Logger::warning(const std::string message) {
     log(message, Logger::Warning);
 }
 
-void Logger::error(std::string message) {
+void Logger::error(const std::string message) {
     log(message, Logger::Error);
 }
 
-void Logger::log(std::string &message, int level) {
+void Logger::log(const std::string &message, int level) {
     std::stringstream out;
     out << "[";
     switch (level) {
@@ -45,6 +39,9 @@ void Logger::log(std::string &message, int level) {
         case Error:
             out << "ERROR";
             break;
+        default:
+            out << "UNDEFINED";
+            break;
     }
     out << "] ";
     out << message;

src/api/API.cpp

@@ -3,10 +3,7 @@
 //
 
 #include "api/API.h"
-#include "api/Hashmap.h"
 
-#include <string>
-#include <iostream>
 #include <sstream>
 #include <curl/curl.h>
 

src/api/DynuAPI.cpp

@@ -5,19 +5,16 @@
 #include "api/DynuAPI.h"
 
 int DynuAPI::refreshIp(std:: string ip) {
-
     Hashmap<std::string, std::string> args;
     args.add("name", domainname);
     args.add("ipv4Address", ip);
 
     std::vector<std::string> headers;
-    headers.push_back("accept: application/json");
-    headers.push_back("User-Agent: Mozilla/5.0 (compatible; Rigor/1.0.0; http://rigor.com)");
-    headers.push_back("API-Key: " + dynuapikey);
+    headers.emplace_back("accept: application/json");
+    headers.emplace_back("User-Agent: Mozilla/5.0 (compatible; Rigor/1.0.0; http://rigor.com)");
+    headers.emplace_back("API-Key: " + dynuapikey);
 
-    std::string dynurepl = request("https://api.dynu.com/v2/dns/" + domainid, true, args, headers);
-
-//    std::cout << "[DEBUG] api reply:: " << dynurepl << std::endl;
+    const std::string dynurepl = request("https://api.dynu.com/v2/dns/" + domainid, true, args, headers);
 
     if (dynurepl != "{\"statusCode\":200}") {
         return -1;
@@ -25,3 +22,9 @@ int DynuAPI::refreshIp(std:: string ip) {
         return 1;
     }
 }
+
+void DynuAPI::init(const std::string& dynuApiKey, const std::string& domainId, const std::string& domainName) {
+    this->dynuapikey=dynuApiKey;
+    this->domainid=domainId;
+    this->domainname=domainName;
+}

src/api/TelegramAPI.cpp

@@ -4,7 +4,9 @@
 
 #include "api/TelegramAPI.h"
 
-void TelegramAPI::sendMessage(std::string text) {
+#include <Logger.h>
+
+int TelegramAPI::sendMessage(const std::string& text) {
     Hashmap<std::string, std::string> args;
     args.add("chat_id", chatid);
     args.add("text", text);
@@ -12,10 +14,16 @@ void TelegramAPI::sendMessage(std::string text) {
     std::vector<std::string> headers;
 
     std::string reply = request("https://api.telegram.org/bot" + apikey + "/sendmessage", false, args, headers);
-//    std::cout << "[DEBUG] " << reply << std::endl;
+
+    unsigned const long ULONG_MAX = -1;
+    if (reply.find("\"error_code\"") != ULONG_MAX) {
+        Logger::error("failed to refresh the ip (Dynu API)");
+        return -1;
+    }
+    return 1;
 }
 
-void TelegramAPI::init(std::string apikey, std::string chatid) {
+void TelegramAPI::init(const std::string apikey, const std::string chatid) {
     this->apikey = apikey;
     this->chatid = chatid;
 }

src/main.cpp

@@ -1,8 +1,16 @@
-#include <iostream>
-#include <IPRefresher.h>
-#include <Version.h>
-#include <Logger.h>
+//
+// Created by lukas on 18.06.19.
+//
 
+#include <Version.h>
+#include <IPRefresher.h>
+#include <Logger.h>
+#include <Config.h>
+
+#include <iostream>
+/**
+ * application entry point
+ */
 int main(int argc, char *argv[]) {
     if (argc > 1) {
         std::string firstarg(argv[1]);
@@ -11,22 +19,38 @@ int main(int argc, char *argv[]) {
                       << "[-v] [--version] print the software version" << std::endl
                       << "[-f] [--force] force refresh of ip" << std::endl
                       << "[-l] [--loop] infinite loop to refresh ip every five minutes" << std::endl
+                      << "[-c] [--checkconfig] validate configuration" << std::endl
                       << "[no argument] normal ip check and refresh" << std::endl;
         } else if (firstarg == "-v" || firstarg == "--version") {
             std::cout << "Version " << Version::VERSION << std::endl;
         } else if (firstarg == "-f" || firstarg == "--force") {
             IPRefresher ipr;
+            if (Config::readCredentials()) {
                 ipr.checkIPAdress(true);
+            } else {
+                std::cout << "incorrect credentials!" << std::endl;
+            }
+
         } else if (firstarg == "-l" || firstarg == "--loop") {
-            IPRefresher ipr(true);
+            IPRefresher(true);
+        } else if (firstarg == "-c" || firstarg == "--checkconfig") {
+            if (Config::validateConfig()) {
+                Logger::message("Config file is OK");
+            } else {
+                Logger::warning("There are errors in config file!");
+                return -1;
+            }
         } else {
             Logger::message("wrong arguments!  -h for help");
         }
     } else {
         IPRefresher ipr;
         Logger::message("starting check");
+        if (Config::readCredentials()) {
             ipr.checkIPAdress(false);
-
+        } else {
+            std::cout << "incorrect credentials!" << std::endl;
+        }
     }
 
     return 0;