namespace for IPRefresher instead of class

error messages in gui.

.gitlab-ci.yml

@@ -1,17 +1,49 @@
 image: luki42/dynuiprefresher_build:latest
 
 stages:
+  - cmake
   - build
+  - build_package
+  - test
 
+cache:
+  paths:
+    - build/
+    - src/
+    - inc/
+    - tests/
+    - postinst
+
+cmake:
+  stage: cmake
+  script:
+    - cmake -S . -B build
 
 build:
   stage: build
   script:
-    - cmake -S . -B build
     - cd build
     - make
-    - make package
   artifacts:
     paths:
       - "build/bin/*"
-      - "build/packages/*"
+
+
+build_package:
+  stage: build_package
+  script:
+    - cd build
+    - make package
+  artifacts:
+    paths:
+      - "build/packages/*"
+
+test:
+  stage: test
+  script:
+    - cd build
+    - make test
+    - make build-xml
+  artifacts:
+    reports:
+      junit: build/report.xml

CMakeLists.txt

@@ -5,21 +5,27 @@
 ## libcurl (with sources)
 ## libconfig (with sources)
 #
-# documenation build needs doxygen to be installed.
+# for documenation build doxygen needs to be installed.
+# for test build gtest needs to be installed.
 
 cmake_minimum_required(VERSION 3.13)
 project(iprefresher DESCRIPTION "Dynu ip refresher")
 SET(PROJECT_VERSION 1.3.3)
-SET(CMAKE_CXX_STANDARD 17)
 
 # CONFIGURATION
 SET(CMAKE_BUILD_TYPE Release) # manually SET build type (Release / Debug)
 SET(LIB_METHOD STATIC) #SHARED / STATIC
 
-option(BUILD_DOC "Build documentation" OFF) # additional dependency for Doxygen
+option(BUILD_DOC "Build documentation" ON) # additional dependency for Doxygen
 option(PACKAGING "Allow Packaging to <exe>, <deb> or <rpm>" ON) # additional dependencies for RPMbuild,dpkg  or NSIS
+option(TESTS "Build Tests" ON) # additional dependencies for GTEST - to build tests
+option(GUI "Build GUI elements" ON) # additional dependencies to QT libraries needed
 set(WinBuild false)
 
+# helper variables
+SET(CMAKE_CXX_STANDARD 17)
+string(TIMESTAMP TIMESTAMP_NOW "%d.%m.%Y")
+
 SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
@@ -93,6 +99,10 @@ if (${WinBuild})
     message(STATUS "Using LIBCONFIG++ lib(s): ${LIBCONFIG++_LIBRARIES}")
 
     include_directories(${LIBCONFIG++_INCLUDE_DIRS} inc)
+
+    if (${GUI})
+        set(CMAKE_PREFIX_PATH "/usr/${TOOLCHAIN_PREFIX}/sys-root/mingw/lib/cmake")
+    endif ()
 else ()
     find_package(CURL REQUIRED)
     if (CURL_INCLUDE_DIRS AND CURL_LIBRARIES)
@@ -106,15 +116,31 @@ else ()
 
     message("")
     # libconfig
-    FIND_PACKAGE(libconfig++ REQUIRED)
-    if (LIBCONFIG++_INCLUDE_DIRS AND LIBCONFIG++_LIBRARY_DIRS)
-        message(STATUS "Found libconfig version: ${LIBCONFIG++_VERSION}")
+    FIND_PATH(LIBCONFIG++_INCLUDE_DIRS
+            NAMES libconfig.h++
+            PATHS /usr/include /usr/local/include) # search for libconfig include headers
+    FIND_LIBRARY(LIBCONFIG++_LIBRARIES
+            NAMES config++
+            PATHS /usr/lib /usr/local/lib) # search for actual lib
+
+    if (LIBCONFIG++_INCLUDE_DIRS AND LIBCONFIG++_LIBRARIES)
+        message(STATUS "Fount libconfig!")
         message(STATUS "Using libconfig include dir(s): ${LIBCONFIG++_INCLUDE_DIRS}")
-        message(STATUS "Using libconfig lib(s): ${LIBCONFIG++_LIBRARY_DIRS}")
+        message(STATUS "Using libconfig lib(s): ${LIBCONFIG++_LIBRARIES}")
     else ()
-        message(FATAL_ERROR "Could not find CURL")
+        message(FATAL_ERROR "Could not find LIBCONFIG")
     endif ()
-    include_directories(${LIBCONFIG++_INCLUDE_DIRS} inc)
+
+    include_directories(${LIBCONFIG_INCLUDE_DIRS})
+endif ()
+
+if (${GUI})
+    set(CMAKE_AUTOMOC ON)
+    set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+    find_package(Qt5Widgets REQUIRED)
+    find_package(Qt5PrintSupport REQUIRED)
+    find_package(Qt5Sql REQUIRED)
 endif ()
 
 message("")
@@ -123,8 +149,18 @@ message("")
 FILE(READ ${CMAKE_SOURCE_DIR}/config/iprefresher.cfg SAMPLECONFIG)
 #add version header
 FILE(WRITE ${CMAKE_SOURCE_DIR}/inc/Version.h
-        "\#pragma once
+        "/**
+ * Version header to store Version, Config dir and a Sample config
+ * Do not edit this file manually, it is generated by the cmake script!
+ *
+ * @author Lukas Heiligenbrunner
+ * @date ${TIMESTAMP_NOW}
+ */
+
+#pragma once
+
 #include <string>
+
 namespace Version {
   const std::string VERSION = \"${PROJECT_VERSION}\";
   const std::string ConfigDir = \"${CONFIG_PATH}\";
@@ -138,20 +174,40 @@ add_library(api ${LIB_METHOD}
         src/api/DynuAPI.cpp
         src/api/IPAPI.cpp)
 
-add_library(logger ${LIB_METHOD}
-        src/FileLogger.cpp
-        src/Logger.cpp)
-
-
-SET(SOURCE
-        src/main.cpp
+add_library(dynuiprefresher ${LIB_METHOD}
         src/IPRefresher.cpp
-        src/Config.cpp)
+        src/Config.cpp
+        src/IpHelper.cpp
+        src/FileLogger.cpp
+        src/Logger.cpp
+        )
 
-add_executable(iprefresher ${SOURCE})
+add_executable(iprefresher src/main.cpp)
 
 # LINK generated LIBS #
-target_link_libraries(iprefresher api logger ${CURL_LIBRARIES} ${LIBCONFIG++_LIBRARIES})
+target_link_libraries(iprefresher dynuiprefresher api ${CURL_LIBRARIES} ${LIBCONFIG++_LIBRARIES})
+
+if (${GUI})
+    set(QT5_LIBRARIES Qt5::Widgets Qt5::PrintSupport Qt5::Sql)
+
+    set(UI_SOURCES
+            src/gui/mainwindow.ui
+            )
+
+    #
+    # Generate necessary headers from .ui files. (qmake lets `uic` do this job.)
+    # hint from [Cross-platform Qt5 project using cmake](http://stackoverflow.com/questions/21174586/cross-platform-qt5-project-using-cmake)
+    #
+    qt5_wrap_ui(UI_GENERATED_HEADERS ${UI_SOURCES})
+
+    add_executable(iprefresher-gui
+            src/maingui.cpp
+            src/gui/MainWindow.cpp
+            src/gui/MainWindow.h ${UI_GENERATED_HEADERS})
+
+    # LINK generated LIBS #
+    target_link_libraries(iprefresher-gui -lpthread dynuiprefresher api ${CURL_LIBRARIES} ${LIBCONFIG++_LIBRARIES} ${QT5_LIBRARIES})
+endif ()
 
 # setting install targets
 IF (NOT ${WinBuild})
@@ -201,6 +257,8 @@ if (${PACKAGING})
         # generate post script for checking if configuration already exists
         FILE(WRITE ${CMAKE_SOURCE_DIR}/postinst
                 "#!/bin/bash
+# Post installation script for linux packages
+# do not edit this file manually, it is generated by the cmake script
 if [ ! -f ${CONFIG_PATH} ]; then
     cat > ${CONFIG_PATH} <<- EOM
 ${SAMPLECONFIG}EOM
@@ -285,4 +343,43 @@ if (BUILD_DOC)
         message(STATUS "Doxygen need to be installed to generate the doxygen documentation")
     endif (DOXYGEN_FOUND)
     message("")
-endif (BUILD_DOC)
+endif (BUILD_DOC)
+
+# Test Cases
+if (TESTS)
+    include(GoogleTest)
+
+    mark_as_advanced(
+            BUILD_GMOCK BUILD_GTEST BUILD_SHARED_LIBS
+            gmock_build_tests gtest_build_samples gtest_build_tests
+            gtest_disable_pthreads gtest_force_shared_crt gtest_hide_internal_symbols
+    )
+
+    enable_testing()
+
+    macro(package_add_test TESTNAME)
+        # create an exectuable in which the tests will be stored
+        add_executable(${TESTNAME} ${ARGN})
+        # link the Google test infrastructure, mocking library, and a default main fuction to
+        target_link_libraries(${TESTNAME} gtest gtest_main -lpthread -lm dynuiprefresher api ${CURL_LIBRARIES} ${LIBCONFIG++_LIBRARIES})
+        # see https://cmake.org/cmake/help/v3.10/module/GoogleTest.html for more options to pass to it
+        gtest_discover_tests(${TESTNAME}
+                WORKING_DIRECTORY ${PROJECT_DIR}
+                EXTRA_ARGS --gtest_output=xml:report.xml -VV
+                PROPERTIES VS_DEBUGGER_WORKING_DIRECTORY "${PROJECT_DIR}"
+                )
+        set_target_properties(${TESTNAME} PROPERTIES FOLDER tests)
+    endmacro()
+
+    package_add_test(test1 tests/UnitTest.cpp ${SOURCE})
+
+    add_custom_target(build-test
+            "${CMAKE_COMMAND}" --build "${CMAKE_BINARY_DIR}" --target test
+            DEPENDS ${PROJECT_NAME}
+            COMMENT "Packing ${PROJECT_NAME}")
+
+    add_custom_target(build-xml
+            "bin/test1" --gtest_output="xml:report.xml"
+            DEPENDS ${PROJECT_NAME}
+            COMMENT "Packing ${PROJECT_NAME}")
+ENDIF ()

README.md

@@ -1,3 +1,4 @@
+[![pipeline status](http://gitlab.heili.eu/lukas/dynuiprefresher/badges/master/pipeline.svg)](http://gitlab.heili.eu/lukas/dynuiprefresher/-/commits/master)
 # 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.

inc/Config.h

@@ -1,6 +1,9 @@
-//
-// Created by lukas on 11.02.20.
-//
+/**
+ * A static class to manage the configuration file, read/write parameters to it.
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 11.02.2020
+ */
 
 #pragma once
 
@@ -8,20 +11,12 @@
 
 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();
+    * read configuration out of config file
+    *
+    * @return success of config read
+    */
+    static bool readConfig();
 
     /**
      * validate config file
@@ -30,5 +25,62 @@ public:
      */
     static bool validateConfig();
 
+    /**
+     * check if telegram credentials in config are set
+     * @return is supported?
+     */
+    static bool isTelegramSupported();
+
+    /** Getters **/
+
+    /**
+     * encapsulated getter for DynuApiKey
+     * @return api key
+     */
+    static const std::string &getDynuapikey();
+
+    /**
+     * encapsulated getter for DomainId
+     * @return DomainId
+     */
+    static const std::string &getDomainid();
+
+    /**
+     * encapsulated getter for Domainname
+     * @return Domainname
+     */
+    static const std::string &getDomainname();
+
+    /**
+     * encapsulated getter for TelegramApiKey
+     * @return TelegramApiKey
+     */
+    static const std::string &getTelegramApiKey();
+
+    /**
+     * encapsulated getter for ChatId
+     * @return ChatId
+     */
+    static const std::string &getChatId();
+
+
 private:
+    /**
+     * private constructor --> don't allow instance of this class
+     */
+    Config();
+
+    /**
+     * helper variable for managing telegram Support
+     */
+    static bool telegramSupport;
+
+    /**
+     * helper variables for storing keys and ids
+     */
+    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;
 };

inc/FileLogger.h

@@ -1,6 +1,9 @@
-//
-// Created by lukas on 05.05.19.
-//
+/**
+ * Read and write current ip to a temp file to remember last ip until restart
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 05.05.2019
+ */
 
 #pragma once
 

inc/IPRefresher.h

@@ -1,25 +1,33 @@
-//
-// Created by lukas on 02.08.19.
-//
+/**
+ * IPrefresher library
+ * - start checking ip once
+ * - or in loop mode
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 06.04.2019
+ */
 
 #pragma once
 
-class IPRefresher {
-public:
+namespace IPRefresher {
+    /**
+     * Status return-codes for startUpService
+     */
+    namespace Status_Code {
+        const int SUCCESS = 1;
+        const int ERROR = -1;
+        const int ERROR_NO_INTERNET = -2;
+        const int NOREFRESH = 0;
+    }
+
     /**
      * refresh ip address on Dynu server
      */
-    void checkIPAdress(bool force);
-
-    /**
-     * default constructor
-     */
-    IPRefresher();
+    bool checkIPAdress(bool force);
 
     /**
      * 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);
-};
+    void startUpService(int interval = 300);
+}

inc/IpHelper.h

@@ -0,0 +1,22 @@
+/**
+ * A helper class for general IP String actions
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 07.05.2020
+ */
+
+#pragma once
+
+#include <string>
+
+class IpHelper {
+public:
+    /**
+     * check if ip is valid
+     * @param ip ip address to test
+     * @return validity
+     */
+    static bool isIpValid(std::string ip);
+
+private:
+};

inc/Logger.h

@@ -1,6 +1,10 @@
-//
-// Created by lukas on 26.10.19.
-//
+/**
+ * Fancy console log output format
+ * todo log level support
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 26.10.2019
+ */
 
 #pragma once
 

inc/api/API.h

@@ -1,6 +1,11 @@
-//
-// Created by lukas on 06.04.19.
-//
+/**
+ * API class
+ * - manages all curl download stuff
+ * - easy POST/GET requests
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 06.04.2019
+ */
 
 #pragma once
 
@@ -25,7 +30,10 @@ public:
      * @param headers header fields
      * @return return string of server
      */
-    std::string request(std::string myurl, bool post, Hashmap<std::string, std::string> &map, std::vector<std::string> &headers);
+    std::string request(std::string myurl,
+                        bool post,
+                        Hashmap<std::string, std::string> &map,
+                        std::vector<std::string> &headers);
 
 private:
     static size_t write_data(void *buffer, size_t size, size_t buffersize, FILE *stream);

inc/api/DynuAPI.h

@@ -1,19 +1,22 @@
-//
-// Created by lukas on 18.06.19.
-//
+/**
+ * Dynu API - Refresh the IP
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 18.06.2019
+ */
 
 #pragma once
 
 #include "API.h"
 
-class DynuAPI : API{
+class DynuAPI : API {
 public:
     /**
      * refresh the ip of domain on Dynu server
      * @param ip new ip
      * @return request status
      */
-    int refreshIp(std::string ip);
+    bool refreshIp(std::string ip);
 
     /**
      * init Telegram api with apikey and chatid
@@ -21,10 +24,21 @@ public:
      * @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
+    void init(const std::string &dynuApiKey, const std::string &domainId, const std::string &domainName);
 
-    std::string domainid; //id of the dynu domain
+private:
+    /**
+     * Dynu API Key
+     */
+    std::string dynuapikey;
+
+    /**
+     * Dynu Domain ID
+     */
+    std::string domainid;
+
+    /**
+     * Domain name eg. "mydomain.dynu.net"
+     */
     std::string domainname;
 };

inc/api/Hashmap.h

@@ -1,6 +1,9 @@
-//
-// Created by lukas on 07.04.19.
-//
+/**
+ * A Hashmap class for easier Key-Value maps
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 07.04.2019
+ */
 
 #pragma once
 

inc/api/IPAPI.h

@@ -1,6 +1,9 @@
-//
-// Created by lukas on 18.06.19.
-//
+/**
+ * IPAPI for getting global ip of current network
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 18.06.2019
+ */
 
 #pragma once
 
@@ -8,7 +11,7 @@
 
 #include <string>
 
-class IPAPI : API{
+class IPAPI : API {
 public:
     /**
      * get global ip of current internet connection

inc/api/TelegramAPI.h

@@ -1,6 +1,9 @@
-//
-// Created by lukas on 08.05.19.
-//
+/**
+ * Telegram API for sending message to specific chat
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 08.05.2019
+ */
 
 #pragma once
 
@@ -14,7 +17,7 @@ public:
      * send telegram Message to predefined destination
      * @param text message
      */
-    int sendMessage(const std::string& text);
+    int sendMessage(const std::string &text);
 
     /**
      * init Telegram api with apikey and chatid

src/Config.cpp

@@ -1,7 +1,3 @@
-//
-// Created by lukas on 11.02.20.
-//
-
 #include "Config.h"
 #include "Logger.h"
 #include "Version.h"
@@ -18,10 +14,11 @@ std::string Config::domainname;
 std::string Config::telegramApiKey;
 std::string Config::chatId;
 
-bool Config::readCredentials() {
+bool Config::telegramSupport;
+
+bool Config::readConfig() {
     libconfig::Config cfg;
     try {
-        // todo make dynamic here
         cfg.readFile(Version::ConfigDir.c_str());
     }
     catch (const libconfig::FileIOException &fioex) {
@@ -33,7 +30,7 @@ bool Config::readCredentials() {
             myfile << Version::SAMPLECONFIG;
             myfile.close();
         } else {
-            std::cout << "error creating file" << std::endl;
+            Logger::error("error creating file");
         }
 
         return false;
@@ -52,11 +49,15 @@ bool Config::readCredentials() {
         // optional parameters
         telegramApiKey = (std::string) cfg.lookup("telegramApiKey");
         chatId = (std::string) cfg.lookup("chatId");
+        telegramSupport = true;
     }
     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;
+        } else {
+            Logger::message("no Telegram support - fields in config not set");
+            telegramSupport = false;
         }
     }
     // check if needed values aren't empty
@@ -83,27 +84,57 @@ bool Config::validateConfig() {
     try {
         // needed parameters
         if (((std::string) cfg.lookup("dynuapikey")).empty()) {
-            Logger::warning("required parameter dynuapikey seems to be 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.");
+            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.");
+            Logger::warning("required parameter \"domainname\" seems to be empty.");
             return false;
         }
         // optional parameters
         cfg.lookup("telegramApiKey");
         cfg.lookup("chatId");
+        telegramSupport = true;
     }
     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;
+        } else {
+            Logger::message("no Telegram support - fields in config not set");
+            telegramSupport = false;
         }
     }
     return true;
-}
+}
+
+bool Config::isTelegramSupported() {
+    return telegramSupport;
+}
+
+const std::string &Config::getDynuapikey() {
+    return dynuapikey;
+}
+
+const std::string &Config::getDomainid() {
+    return domainid;
+}
+
+const std::string &Config::getDomainname() {
+    return domainname;
+}
+
+const std::string &Config::getTelegramApiKey() {
+    return telegramApiKey;
+}
+
+const std::string &Config::getChatId() {
+    return chatId;
+}
+
+Config::Config() = default;

src/FileLogger.cpp

@@ -1,12 +1,8 @@
-//
-// Created by lukas on 05.05.19.
-//
-
 #include "FileLogger.h"
+#include "IpHelper.h"
 
 #include <fstream>
 #include <iostream>
-#include <climits>
 
 void FileLogger::safeip(std::string ip) {
     std::ofstream out;
@@ -25,8 +21,8 @@ std::string FileLogger::readip() {
 
     in >> ip;
 
-    // when received ip has no : return 0.0.0.0
-    if (ip.find(':') == ULONG_MAX)
+    // when received ip has no . return 0.0.0.0
+    if (!IpHelper::isIpValid(ip))
         return "0.0.0.0";
     else
         return ip;

src/IPRefresher.cpp

@@ -1,7 +1,3 @@
-//
-// Created by lukas on 02.08.19.
-//
-
 #include "IPRefresher.h"
 #include "FileLogger.h"
 #include "api/IPAPI.h"
@@ -9,14 +5,15 @@
 #include "api/TelegramAPI.h"
 #include "Config.h"
 #include "Version.h"
+#include "IpHelper.h"
 
-#include <string>
 #include <chrono>
 #include <thread>
 #include <Logger.h>
-#include <climits>
 
-void IPRefresher::checkIPAdress(bool force) {
+using namespace IPRefresher;
+
+bool IPRefresher::checkIPAdress(bool force) {
     FileLogger logger;
 
     IPAPI ipapi;
@@ -25,48 +22,52 @@ void IPRefresher::checkIPAdress(bool force) {
     if (ip.empty()) {
         //no internet connection (or other error)
         Logger::warning("no internet connection");
-    } else if (ip.find(':') == ULONG_MAX) {
+        return Status_Code::ERROR_NO_INTERNET;
+    } else if (!IpHelper::isIpValid(ip)) {
         // error when ip doesn't contain a :
         Logger::warning("an error occured when getting the global ip");
+        return Status_Code::ERROR;
     } else {
         std::string oldip = logger.readip();
 
         if (oldip == ip && !force) {
             Logger::message("no change -- ip: " + ip);
+            return Status_Code::NOREFRESH;
         } else {
             Logger::message("ip changed! -- from :" + oldip + "to: " + ip);
 
             DynuAPI dynu;
-            dynu.init(Config::dynuapikey, Config::domainid, Config::domainname);
+            dynu.init(Config::getDynuapikey(), Config::getDomainid(), Config::getDomainname());
+            // actual refresh of IP in api - here
+            bool result = dynu.refreshIp(ip);
 
-            if (dynu.refreshIp(ip)) {
+            if (result && Config::isTelegramSupported()) {
                 TelegramAPI tele;
-                tele.init(Config::telegramApiKey, Config::chatId);
+                tele.init(Config::getTelegramApiKey(), Config::getChatId());
                 tele.sendMessage(oldip + " moved to " + ip);
-            } else {
+            } else if (!result) {
                 //error
                 Logger::error("failed to write ip to dynu api!");
+                return Status_Code::ERROR;
             }
 
             logger.safeip(ip);
+            return result ? Status_Code::SUCCESS : Status_Code::ERROR;
         }
     }
 }
 
-IPRefresher::IPRefresher() = default;
-
-IPRefresher::IPRefresher(bool loop) {
-    if (loop) {
-        Logger::message("startup of service");
-        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;
+void IPRefresher::startUpService(int interval) {
+    Logger::message("startup of service");
+    Logger::message("Version: " + Version::VERSION);
+    if (Config::readConfig()) {
+        while (true) {
+            Logger::message("starting check");
+            checkIPAdress(false);
+            std::this_thread::sleep_for(std::chrono::milliseconds(interval * 1000));
         }
+    } else {
+        std::cout << "incorrect credentials!" << std::endl;
     }
+
 }

src/IpHelper.cpp

@@ -0,0 +1,7 @@
+#include "IpHelper.h"
+
+#include <climits>
+
+bool IpHelper::isIpValid(std::string ip) {
+    return (ip.find('.') != ULONG_MAX);
+}

src/Logger.cpp

@@ -1,7 +1,3 @@
-//
-// Created by lukas on 26.10.19.
-//
-
 #include "Logger.h"
 
 #include <sstream>

src/api/API.cpp

@@ -1,7 +1,3 @@
-//
-// Created by lukas on 06.04.19.
-//
-
 #include "api/API.h"
 
 #include <sstream>

src/api/DynuAPI.cpp

@@ -1,10 +1,6 @@
-//
-// Created by lukas on 18.06.19.
-//
-
 #include "api/DynuAPI.h"
 
-int DynuAPI::refreshIp(std:: string ip) {
+bool DynuAPI::refreshIp(std::string ip) {
     Hashmap<std::string, std::string> args;
     args.add("name", domainname);
     args.add("ipv4Address", ip);
@@ -16,15 +12,11 @@ int DynuAPI::refreshIp(std:: string ip) {
 
     const std::string dynurepl = request("https://api.dynu.com/v2/dns/" + domainid, true, args, headers);
 
-    if (dynurepl != "{\"statusCode\":200}") {
-        return -1;
-    } else {
-        return 1;
-    }
+    return (dynurepl == "{\"statusCode\":200}");
 }
 
-void DynuAPI::init(const std::string& dynuApiKey, const std::string& domainId, const std::string& domainName) {
-    this->dynuapikey=dynuApiKey;
-    this->domainid=domainId;
-    this->domainname=domainName;
+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/IPAPI.cpp

@@ -1,9 +1,5 @@
-//
-// Created by lukas on 18.06.19.
-//
-
 #include "api/IPAPI.h"
 
 std::string IPAPI::getGlobalIp() {
     return request("https://api.ipify.org");
-}
+}

src/api/TelegramAPI.cpp

@@ -1,13 +1,9 @@
-//
-// Created by lukas on 08.05.19.
-//
-
 #include "api/TelegramAPI.h"
 #include "Logger.h"
 
 #include <climits>
 
-int TelegramAPI::sendMessage(const std::string& text) {
+int TelegramAPI::sendMessage(const std::string &text) {
     Hashmap<std::string, std::string> args;
     args.add("chat_id", chatid);
     args.add("text", text);

src/gui/MainWindow.cpp

@@ -0,0 +1,84 @@
+#include "MainWindow.h"
+#include "ui_mainwindow.h"
+
+#include "api/IPAPI.h"
+#include "IPRefresher.h"
+#include "Config.h"
+#include "Logger.h"
+
+#include <thread>
+
+MainWindow::MainWindow() : QMainWindow(), ui(new Ui::MainWindow) {
+    ui->setupUi(this);
+
+    // needs to be defined with new -- would be termintated after this constructor.
+    new std::thread([this]() {
+        IPAPI ipapi;
+        std::string ip = ipapi.getGlobalIp();
+        Logger::message("Current global IP: " + ip);
+        std::string msg = "Your current global IP: " + ip;
+        this->ui->labelCurrentIP->setText(msg.c_str());
+    });
+
+    // set config info label and initial check if config is valid
+    ui->labelConfig->setText(Config::validateConfig() ? "Config is: OK" : "Config is: NOT OK");
+
+    connect(ui->buttonCheckConfig, SIGNAL(clicked()), this, SLOT(checkConfigBtn()));
+    connect(ui->buttonRefreshIP, SIGNAL(clicked()), this, SLOT(refreshIPBtn()));
+
+    connect(this, SIGNAL(appendLogField(QString)), ui->textLog, SLOT(appendPlainText(QString)));
+}
+
+MainWindow::~MainWindow() {
+    // todo check if disconnects are really necessary
+    disconnect(ui->buttonCheckConfig);
+    disconnect(ui->buttonRefreshIP);
+    delete ui;
+}
+
+void MainWindow::checkConfigBtn() {
+    Logger::message("checking config!");
+    appendLogField("checking config!");
+
+    if (Config::validateConfig()) {
+        Logger::message("Config file is OK");
+        appendLogField("Config file is OK");
+        ui->labelConfig->setText("Config is: OK");
+    } else {
+        Logger::error("There are errors in config file!");
+        appendLogField("There are errors in config file!");
+    }
+    appendLogField("");
+}
+
+void MainWindow::refreshIPBtn() {
+    Logger::message("start refreshing Dynu IP.");
+    appendLogField("");
+    appendLogField("start refreshing Dynu IP.");
+    new std::thread([this]() {
+        if (Config::readConfig()) {
+            int code = IPRefresher::checkIPAdress(false);
+            switch (code) {
+                case IPRefresher::Status_Code::SUCCESS:
+                    appendLogField("successfully refreshed IP!");
+                    break;
+                case IPRefresher::Status_Code::NOREFRESH:
+                    appendLogField("IP is already correct.");
+                    break;
+                case IPRefresher::Status_Code::ERROR_NO_INTERNET:
+                    appendLogField("Error: No Internet connection");
+                    break;
+                case IPRefresher::Status_Code::ERROR:
+                    appendLogField("An error occured while refreshing.");
+                    break;
+                default:
+                    appendLogField("An unknown error code occured");
+            }
+        } else {
+            std::cout << "incorrect credentials!" << std::endl;
+        }
+
+        Logger::message("Finished refreshing Dynu IP.");
+        this->appendLogField("Finished refreshing Dynu IP.");
+    });
+}

src/gui/MainWindow.h

@@ -0,0 +1,50 @@
+/**
+ * Main GUI controller - User IO handlings
+ *
+ * @author Lukas Heiligenbrunner
+ * @date 09.05.2020
+ */
+
+#pragma once
+
+#include <QtWidgets/QMainWindow>
+
+namespace Ui {
+    class MainWindow;
+}
+
+class MainWindow : public QMainWindow {
+Q_OBJECT
+
+public:
+    /**
+     * constructor with basic initializations
+     */
+    explicit MainWindow();
+
+    /**
+     * destruct all gui elements
+     */
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+private slots:
+    /**
+     * executed click handler for config button
+     */
+    void checkConfigBtn();
+
+    /**
+     * executed click handler for refresh btn
+     */
+    void refreshIPBtn();
+
+signals:
+    /**
+     * append a String line to the Log field
+     *
+     * @param QString string to be appended
+     */
+    void appendLogField(QString);
+};

src/gui/mainwindow.ui

@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>823</width>
+    <height>618</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QPushButton" name="buttonRefreshIP">
+    <property name="geometry">
+     <rect>
+      <x>290</x>
+      <y>300</y>
+      <width>91</width>
+      <height>33</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Refresh IP</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="labelCurrentIP">
+    <property name="geometry">
+     <rect>
+      <x>40</x>
+      <y>60</y>
+      <width>301</width>
+      <height>17</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Your current global IP:</string>
+    </property>
+   </widget>
+   <widget class="QPlainTextEdit" name="textLog">
+    <property name="enabled">
+     <bool>false</bool>
+    </property>
+    <property name="geometry">
+     <rect>
+      <x>40</x>
+      <y>410</y>
+      <width>691</width>
+      <height>191</height>
+     </rect>
+    </property>
+    <property name="cursor" stdset="0">
+     <cursorShape>IBeamCursor</cursorShape>
+    </property>
+   </widget>
+   <widget class="QLabel" name="label_2">
+    <property name="geometry">
+     <rect>
+      <x>40</x>
+      <y>380</y>
+      <width>64</width>
+      <height>17</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Log:</string>
+    </property>
+   </widget>
+   <widget class="QPushButton" name="buttonCheckConfig">
+    <property name="geometry">
+     <rect>
+      <x>270</x>
+      <y>140</y>
+      <width>91</width>
+      <height>33</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Check Config</string>
+    </property>
+   </widget>
+   <widget class="QLabel" name="labelConfig">
+    <property name="geometry">
+     <rect>
+      <x>270</x>
+      <y>180</y>
+      <width>141</width>
+      <height>17</height>
+     </rect>
+    </property>
+    <property name="text">
+     <string>Config is: undefined</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/main.cpp

@@ -1,15 +1,9 @@
-//
-// Created by lukas on 18.06.19.
-//
-
 #include "Version.h"
 #include "IPRefresher.h"
 #include "Logger.h"
 #include "Config.h"
 #include "api/IPAPI.h"
 
-#include <iostream>
-
 /**
  * application entry point
  */
@@ -27,20 +21,19 @@ int main(int argc, char *argv[]) {
         } 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);
+            if (Config::readConfig()) {
+                IPRefresher::checkIPAdress(true);
             } else {
                 std::cout << "incorrect credentials!" << std::endl;
             }
 
         } else if (firstarg == "-l" || firstarg == "--loop") {
-            IPRefresher(true);
+            IPRefresher::startUpService(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!");
+                Logger::error("There are errors in config file!");
                 return -1;
             }
         } else if (firstarg == "-ip" || firstarg == "--currentip") {
@@ -50,10 +43,9 @@ int main(int argc, char *argv[]) {
             Logger::message("wrong arguments!  -h for help");
         }
     } else {
-        IPRefresher ipr;
         Logger::message("starting check");
-        if (Config::readCredentials()) {
-            ipr.checkIPAdress(false);
+        if (Config::readConfig()) {
+            IPRefresher::checkIPAdress(false);
         } else {
             std::cout << "incorrect credentials!" << std::endl;
         }

src/maingui.cpp

@@ -0,0 +1,14 @@
+#include <QApplication>
+#include "gui/MainWindow.h"
+
+/**
+ * application entry point
+ */
+int main(int argc, char *argv[]) {
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.setWindowTitle("startUpService");
+    w.show();
+
+    return QApplication::exec();
+}

tests/UnitTest.cpp

@@ -0,0 +1,30 @@
+//
+// Created by lukas on 06.05.20.
+//
+
+#include <FileLogger.h>
+#include <api/IPAPI.h>
+#include <climits>
+#include "gtest/gtest.h"
+
+/**
+ * Test if default ip is 0.0.0.0 when last ip file doesn't exist.
+ */
+TEST(ReadIp, testzeroIpIfNotExists) {
+    FileLogger logger;
+    std::string oldip = logger.readip();
+    ASSERT_EQ(oldip, "0.0.0.0");
+}
+/**
+ * Test if default ip is 0.0.0.0 when last ip file doesn't exist.
+ */
+TEST(IPAPI, testIpAPIcheckIPSyntax) {
+    IPAPI ipapi;
+    std::string ip = ipapi.getGlobalIp();
+    if (ip.find('.') == ULONG_MAX) {
+        // error when ip doesn't contain a .
+        ASSERT_TRUE(false);
+    } else {
+        ASSERT_TRUE(true);
+    }
+}