From 8b33ec859bfe24c71965af1f2381731d75cdc9bb Mon Sep 17 00:00:00 2001
From: arcan1s <darkarcanis@mail.ru>
Date: Thu, 26 Feb 2015 06:20:23 +0300
Subject: [PATCH] refactoring of library part

---
 sources/netctlgui/src/netctlinteract.cpp | 119 +++++++++--------------
 sources/netctlgui/src/netctlprofile.cpp  |  61 ++++++------
 sources/netctlgui/src/wpasupinteract.cpp |  97 ++++++++----------
 3 files changed, 114 insertions(+), 163 deletions(-)

diff --git a/sources/netctlgui/src/netctlinteract.cpp b/sources/netctlgui/src/netctlinteract.cpp
index 80f3725..123ae90 100644
--- a/sources/netctlgui/src/netctlinteract.cpp
+++ b/sources/netctlgui/src/netctlinteract.cpp
@@ -59,8 +59,7 @@ Netctl::Netctl(const bool debugCmd, const QMap<QString, QString> settings)
     if (settings.contains(QString("SYSTEMCTL_PATH")))
         systemctlCommand = settings[QString("SYSTEMCTL_PATH")];
     if (settings.contains(QString("FORCE_SUDO")))
-        if (settings[QString("FORCE_SUDO")] == QString("true"))
-            useSuid = false;
+        useSuid = (settings[QString("FORCE_SUDO")] != QString("true"));
 
     if (useSuid)
         sudoCommand = QString("");
@@ -89,27 +88,24 @@ bool Netctl::cmdCall(const bool sudo, const QString command, const QString comma
     if (debug) qDebug() << PDEBUG << ":" << "Command" << command;
     if (debug) qDebug() << PDEBUG << ":" << "Command line" << commandLine;
     if (debug) qDebug() << PDEBUG << ":" << "Argument" << argument;
-    if (command == 0) {
+    if (command.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find command";
         return false;
     }
 
     QString cmd = QString("");
     if (sudo)
-        cmd = sudoCommand + QString(" ");
-    cmd += command + QString(" ") + commandLine;
-    if (argument != 0)
-        cmd += QString(" \"") + argument + QString("\"");
+        cmd = QString("%1 ").arg(sudoCommand);
+    cmd += QString("%1 %2").arg(command).arg(commandLine);
+    if (!argument.isEmpty())
+        cmd += QString(" \"%1\"").arg(argument);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     TaskResult process = runTask(cmd, (useSuid && sudo));
     if (debug) qDebug() << PDEBUG << ":" << "Cmd returns" << process.exitCode;
     if (process.exitCode != 0)
         if (debug) qDebug() << PDEBUG << ":" << "Error" << process.error;
 
-    if (process.exitCode == 0)
-        return true;
-    else
-        return false;
+    return (process.exitCode == 0);
 }
 
 
@@ -122,17 +118,17 @@ QString Netctl::getCmdOutput(const bool sudo, const QString command, const QStri
     if (debug) qDebug() << PDEBUG << ":" << "Command" << command;
     if (debug) qDebug() << PDEBUG << ":" << "Command line" << commandLine;
     if (debug) qDebug() << PDEBUG << ":" << "Argument" << argument;
-    if (command == 0) {
+    if (command.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find command";
         return QString();
     }
 
     QString cmd = QString("");
     if (sudo)
-        cmd = sudoCommand + QString(" ");
-    cmd += command + QString(" ") + commandLine;
-    if (argument != 0)
-        cmd += QString(" \"") + argument + QString("\"");
+        cmd = QString("%1 ").arg(sudoCommand);
+    cmd += QString("%1 %2").arg(command).arg(commandLine);
+    if (!argument.isEmpty())
+        cmd += QString(" \"%1\"").arg(argument);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     TaskResult process = runTask(cmd, (useSuid && sudo));
     if (debug) qDebug() << PDEBUG << ":" << "Cmd returns" << process.exitCode;
@@ -194,10 +190,7 @@ QList<netctlProfileInfo> Netctl::getProfileList()
         netctlProfileInfo profileInfo;
         profileInfo.name = output[i].mid(2, -1);
         profileInfo.description = getProfileDescription(profileInfo.name);
-        if (output[i][0] == QChar('*'))
-            profileInfo.active = true;
-        else
-            profileInfo.active = false;
+        profileInfo.active = (output[i][0] == QChar('*'));
         profileInfo.enabled = isProfileEnabled(profileInfo.name);
         fullProfilesInfo.append(profileInfo);
     }
@@ -220,12 +213,8 @@ QList<netctlProfileInfo> Netctl::getProfileListFromNetctlAuto()
         netctlProfileInfo profileInfo;
         profileInfo.name = output[i].mid(2, -1);
         profileInfo.description = getProfileDescription(profileInfo.name);
-        profileInfo.active = false;
-        profileInfo.enabled = true;
-        if (output[i][0] == QChar('*'))
-            profileInfo.active = true;
-        else if (output[i][0] == QChar('!'))
-            profileInfo.enabled = false;
+        profileInfo.active = (output[i][0] == QChar('*'));
+        profileInfo.enabled = (output[i][0] != QChar('!'));
         fullProfilesInfo.append(profileInfo);
     }
 
@@ -279,12 +268,9 @@ bool Netctl::isProfileActive(const QString profile)
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
 
-    bool status = false;
     QString output = getCmdOutput(false, netctlCommand, QString("status"), profile);
-    if (output.contains(QString("Active: active")))
-        status = true;
 
-    return status;
+    return (output.contains(QString("Active: active")));
 }
 
 
@@ -346,17 +332,17 @@ bool Netctl::autoIsProfileEnabled(const QString profile)
 bool Netctl::isNetctlAutoEnabled()
 {
     if (debug) qDebug() << PDEBUG;
-    if (netctlAutoService == 0) {
+    if (netctlAutoService.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find service";
         return false;
     }
-    if (getWirelessInterfaceList().isEmpty()) {
+    QStringList interfaces = getWirelessInterfaceList();
+    if (interfaces.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not interface";
         return false;
     }
 
-    QString interface = getWirelessInterfaceList()[0];
-    QString argument = netctlAutoService + QString("@") + interface + QString(".service");
+    QString argument = QString("%1@%2.service").arg(netctlAutoService).arg(interfaces[0]);
 
     return cmdCall(false, systemctlCommand, QString("is-enabled"), argument);
 }
@@ -368,7 +354,7 @@ bool Netctl::isNetctlAutoEnabled()
 bool Netctl::isNetctlAutoRunning()
 {
     if (debug) qDebug() << PDEBUG;
-    if (netctlAutoService == 0) {
+    if (netctlAutoService.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find service";
         return false;
     }
@@ -378,8 +364,7 @@ bool Netctl::isNetctlAutoRunning()
         return false;
     }
 
-    QString interface = interfaces[0];
-    QString argument = netctlAutoService + QString("@") + interface + QString(".service");
+    QString argument = QString("%1@%2.service").arg(netctlAutoService).arg(interfaces[0]);
 
     return cmdCall(false, systemctlCommand, QString("is-active"), argument);
 }
@@ -391,7 +376,6 @@ bool Netctl::isNetctlAutoRunning()
 QMap<QString, QString> Netctl::getRecommendedConfiguration()
 {
     QMap<QString, QString> settings;
-    QString cmd;
     TaskResult process;
     QStringList recommended;
     // force sudo
@@ -401,8 +385,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
     recommended.append(QString("netctlgui-helper"));
     recommended.append(QString("netctlgui-helper-suid"));
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("FORCE_SUDO")] = QString("false");
             break;
@@ -430,8 +413,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
     recommended.clear();
     recommended.append("netctl");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("NETCTL_PATH")] = process.output.trimmed();
             break;
@@ -443,8 +425,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
     recommended.clear();
     recommended.append("netctl-auto");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("NETCTLAUTO_PATH")] = process.output.trimmed();
             break;
@@ -474,8 +455,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
     recommended.append("kdesu");
     recommended.append("gksu");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("SUDO_PATH")] = process.output.trimmed();
             break;
@@ -487,8 +467,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
     recommended.clear();
     recommended.append("systemctl");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("SYSTEMCTL_PATH")] = process.output.trimmed();
             break;
@@ -505,7 +484,7 @@ QMap<QString, QString> Netctl::getRecommendedConfiguration()
 QStringList Netctl::getWirelessInterfaceList()
 {
     if (debug) qDebug() << PDEBUG;
-    if (ifaceDirectory == 0) {
+    if (ifaceDirectory == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return QStringList();
     }
@@ -515,10 +494,11 @@ QStringList Netctl::getWirelessInterfaceList()
         interfaces.append(mainInterface);
     QStringList allInterfaces = ifaceDirectory->entryList(QDir::Dirs | QDir::NoDotAndDotDot);
     for (int i=0; i<allInterfaces.count(); i++) {
-        if (debug) qDebug() << PDEBUG << ":" << "Check directory"
-                 << ifaceDirectory->path() + QDir::separator() + allInterfaces[i] + QDir::separator() + QString("wireless");
-        if (QDir(ifaceDirectory->path() + QDir::separator() + allInterfaces[i] +
-                 QDir::separator() + QString("wireless")).exists())
+        QString dir = QString("%1%2%3%2wireless").arg(ifaceDirectory->path())
+                                                 .arg(QDir::separator())
+                                                 .arg(allInterfaces[i]);
+        if (debug) qDebug() << PDEBUG << ":" << "Check directory" << dir;
+        if (QDir(dir).exists())
             interfaces.append(allInterfaces[i]);
     }
 
@@ -624,10 +604,8 @@ bool Netctl::switchToProfile(const QString profile)
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
 
-    if (isProfileActive(profile))
-        return true;
-    else
-        return cmdCall(true, netctlCommand, QString("switch-to"), profile);
+    return ((isProfileActive(profile)) ||
+            (cmdCall(true, netctlCommand, QString("switch-to"), profile)));
 }
 
 
@@ -676,10 +654,8 @@ bool Netctl::autoStartProfile(const QString profile)
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
 
-    if (autoIsProfileActive(profile))
-        return true;
-    else
-        return cmdCall(false, netctlAutoCommand, QString("switch-to"), profile);
+    return ((autoIsProfileActive(profile)) ||
+            (cmdCall(false, netctlAutoCommand, QString("switch-to"), profile)));
 }
 
 
@@ -689,7 +665,7 @@ bool Netctl::autoStartProfile(const QString profile)
 bool Netctl::autoEnableService()
 {
     if (debug) qDebug() << PDEBUG;
-    if (netctlAutoService == 0) {
+    if (netctlAutoService.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find service";
         return false;
     }
@@ -699,8 +675,7 @@ bool Netctl::autoEnableService()
         return false;
     }
 
-    QString interface = interfaces[0];
-    QString argument = netctlAutoService + QString("@") + interface + QString(".service");
+    QString argument = QString("%1@%2.service").arg(netctlAutoService).arg(interfaces[0]);
 
     if (isNetctlAutoEnabled())
         return cmdCall(true, systemctlCommand, QString("disable"), argument);
@@ -715,7 +690,7 @@ bool Netctl::autoEnableService()
 bool Netctl::autoRestartService()
 {
     if (debug) qDebug() << PDEBUG;
-    if (netctlAutoService == 0) {
+    if (netctlAutoService.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find service";
         return false;
     }
@@ -725,13 +700,10 @@ bool Netctl::autoRestartService()
         return false;
     }
 
-    QString interface = interfaces[0];
-    QString argument = netctlAutoService + QString("@") + interface + QString(".service");
+    QString argument = QString("%1@%2.service").arg(netctlAutoService).arg(interfaces[0]);
 
-    if (isNetctlAutoRunning())
-        return cmdCall(true, systemctlCommand, QString("restart"), argument);
-    else
-        return true;
+    return ((!isNetctlAutoRunning()) ||
+            (cmdCall(true, systemctlCommand, QString("restart"), argument)));
 }
 
 
@@ -741,7 +713,7 @@ bool Netctl::autoRestartService()
 bool Netctl::autoStartService()
 {
     if (debug) qDebug() << PDEBUG;
-    if (netctlAutoService == 0) {
+    if (netctlAutoService.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find service";
         return false;
     }
@@ -751,8 +723,7 @@ bool Netctl::autoStartService()
         return false;
     }
 
-    QString interface = interfaces[0];
-    QString argument = netctlAutoService + QString("@") + interface + QString(".service");
+    QString argument = QString("%1@%2.service").arg(netctlAutoService).arg(interfaces[0]);
 
     if (isNetctlAutoRunning())
         return cmdCall(true, systemctlCommand, QString("stop"), argument);
diff --git a/sources/netctlgui/src/netctlprofile.cpp b/sources/netctlgui/src/netctlprofile.cpp
index 7806f4d..79827bc 100644
--- a/sources/netctlgui/src/netctlprofile.cpp
+++ b/sources/netctlgui/src/netctlprofile.cpp
@@ -50,8 +50,7 @@ NetctlProfile::NetctlProfile(const bool debugCmd, const QMap<QString, QString> s
     if (settings.contains(QString("SUDO_PATH")))
         sudoCommand = settings[QString("SUDO_PATH")];
     if (settings.contains(QString("FORCE_SUDO")))
-        if (settings[QString("FORCE_SUDO")] == QString("true"))
-            useSuid = false;
+        useSuid = (settings[QString("FORCE_SUDO")] != QString("true"));
 
     if (useSuid)
         sudoCommand = QString("");
@@ -76,23 +75,24 @@ bool NetctlProfile::copyProfile(const QString oldPath)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Path" << oldPath;
-    if (profileDirectory == 0) {
+    if (profileDirectory == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return false;
     }
 
-    QString newPath = profileDirectory->absolutePath() + QDir::separator() + QFileInfo(oldPath).fileName();
-    QString cmd = sudoCommand + QString(" /usr/bin/mv \"") + oldPath + QString("\" \"") + newPath + QString("\"");
+    QString newPath = QString("%1%2%3").arg(profileDirectory->absolutePath())
+                                       .arg(QDir::separator())
+                                       .arg(QFileInfo(oldPath).fileName());
+    QString cmd = QString("%1 /usr/bin/mv \"%2\" \"%3\"").arg(sudoCommand)
+                                                         .arg(oldPath)
+                                                         .arg(newPath);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     TaskResult process = runTask(cmd, useSuid);
     if (debug) qDebug() << PDEBUG << ":" << "Cmd returns" << process.exitCode;
     if (process.exitCode != 0)
         if (debug) qDebug() << PDEBUG << ":" << "Error" << process.error;
 
-    if (process.exitCode == 0)
-        return true;
-    else
-        return false;
+    return (process.exitCode == 0);
 }
 
 
@@ -104,7 +104,9 @@ QString NetctlProfile::createProfile(const QString profile, const QMap<QString,
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
 
-    QString profileTempName = QDir::tempPath() + QDir::separator() + QFileInfo(profile).fileName();
+    QString profileTempName = QString("%1%2%3").arg(QDir::tempPath())
+                                               .arg(QDir::separator())
+                                               .arg(QFileInfo(profile).fileName());
     QFile profileFile(profileTempName);
     if (debug) qDebug() << PDEBUG << ":" << "Save to" << profileTempName;
     if (!profileFile.open(QIODevice::WriteOnly | QIODevice::Text))
@@ -123,7 +125,7 @@ QString NetctlProfile::createProfile(const QString profile, const QMap<QString,
                 (settings.keys()[i] == QString("DNSOptions")) ||
                 (settings.keys()[i] == QString("ScanFrequencies")) ||
                 (settings.keys()[i] == QString("WPAConfigSection")))
-            out << QString("(") + settings[settings.keys()[i]] << QString(")") << endl;
+            out << QString("(%1)").arg(settings[settings.keys()[i]]) << endl;
         else
             out << settings[settings.keys()[i]] << endl;
     }
@@ -139,7 +141,6 @@ QString NetctlProfile::createProfile(const QString profile, const QMap<QString,
 QMap<QString, QString> NetctlProfile::getRecommendedConfiguration()
 {
     QMap<QString, QString> settings;
-    QString cmd;
     TaskResult process;
     QStringList recommended;
     // force sudo
@@ -149,8 +150,7 @@ QMap<QString, QString> NetctlProfile::getRecommendedConfiguration()
     recommended.append(QString("netctlgui-helper"));
     recommended.append(QString("netctlgui-helper-suid"));
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("FORCE_SUDO")] = QString("false");
             break;
@@ -177,8 +177,7 @@ QMap<QString, QString> NetctlProfile::getRecommendedConfiguration()
     recommended.append("kdesu");
     recommended.append("gksu");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("SUDO_PATH")] = process.output.trimmed();
             break;
@@ -196,7 +195,7 @@ QMap<QString, QString> NetctlProfile::getSettingsFromProfile(const QString profi
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
-    if (profileDirectory == 0) {
+    if (profileDirectory == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return QMap<QString, QString>();
     }
@@ -216,8 +215,10 @@ QMap<QString, QString> NetctlProfile::getSettingsFromProfile(const QString profi
         systemVariables.append(output[i].split(QChar('='))[0]);
     // profile variables
     QMap<QString, QString> settings;
-    QString profileUrl = profileDirectory->absolutePath() + QDir::separator() + QFileInfo(profile).fileName();
-    cmd = QString("env -i bash -c \"source '") + profileUrl + QString("'; set\"");
+    QString profileUrl = QString("%1%2%3").arg(profileDirectory->absolutePath())
+                                          .arg(QDir::separator())
+                                          .arg(QFileInfo(profile).fileName());
+    cmd = QString("env -i bash -c \"source '%1'; set\"").arg(profileUrl);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     process = runTask(cmd, false);
     if (debug) qDebug() << PDEBUG << ":" << "Cmd returns" << process.exitCode;
@@ -231,9 +232,7 @@ QMap<QString, QString> NetctlProfile::getSettingsFromProfile(const QString profi
         if (!systemVariables.contains(output[i].split(QChar('='))[0]))
             keys.append(output[i].split(QChar('='))[0]);
     for (int i=0; i<keys.count(); i++){
-        cmd = QString("env -i bash -c \"source '") + profileUrl +
-                QString("'; for i in ${!") + keys[i] + QString("[@]}; do echo ${") +
-                keys[i] + QString("[$i]}; done\"");
+        cmd = QString("env -i bash -c \"source '%1'; for i in ${!%2[@]}; do echo ${%2[$i]}; done\"").arg(profileUrl).arg(keys[i]);
         process = runTask(cmd, false);
         settings[keys[i]] = process.output.trimmed();
         if (debug) qDebug() << PDEBUG << ":" << keys[i] << "=" << settings[keys[i]];
@@ -254,10 +253,7 @@ QString NetctlProfile::getValueFromProfile(const QString profile, const QString
 
     QMap<QString, QString> settings = getSettingsFromProfile(profile);
 
-    if (settings.contains(key))
-        return settings[key];
-    else
-        return QString();
+    return settings[key];
 }
 
 
@@ -268,21 +264,20 @@ bool NetctlProfile::removeProfile(const QString profile)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Profile" << profile;
-    if (profileDirectory == 0) {
+    if (profileDirectory == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return false;
     }
 
-    QString profilePath = profileDirectory->absolutePath() + QDir::separator() + QFileInfo(profile).fileName();
-    QString cmd = sudoCommand + QString(" /usr/bin/rm \"") + profilePath + QString("\"");
+    QString profilePath = QString("%1%2%3").arg(profileDirectory->absolutePath())
+                                           .arg(QDir::separator())
+                                           .arg(QFileInfo(profile).fileName());
+    QString cmd = QString("%1 /usr/bin/rm \"%2\"").arg(sudoCommand).arg(profilePath);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     TaskResult process = runTask(cmd, useSuid);
     if (debug) qDebug() << PDEBUG << ":" << "Cmd returns" << process.exitCode;
     if (process.exitCode != 0)
         if (debug) qDebug() << PDEBUG << ":" << "Error" << process.error;
 
-    if (process.exitCode == 0)
-        return true;
-    else
-        return false;
+    return (process.exitCode == 0);
 }
diff --git a/sources/netctlgui/src/wpasupinteract.cpp b/sources/netctlgui/src/wpasupinteract.cpp
index fb26aba..65a77ce 100644
--- a/sources/netctlgui/src/wpasupinteract.cpp
+++ b/sources/netctlgui/src/wpasupinteract.cpp
@@ -58,8 +58,7 @@ WpaSup::WpaSup(const bool debugCmd, const QMap<QString, QString> settings)
     if (settings.contains(QString("WPASUP_PATH")))
         wpaSupPath = settings[QString("WPASUP_PATH")];
     if (settings.contains(QString("FORCE_SUDO")))
-        if (settings[QString("FORCE_SUDO")] == QString("true"))
-            useSuid = false;
+        useSuid = (settings[QString("FORCE_SUDO")] != QString("true"));
 
     if (useSuid)
         sudoCommand = QString("");
@@ -86,11 +85,11 @@ QString WpaSup::existentProfile(const QString essid)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "ESSID" << essid;
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return QString();
     }
-    if (netctlProfile == 0) {
+    if (netctlProfile == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return QString();
     }
@@ -112,7 +111,6 @@ QMap<QString, QString> WpaSup::getRecommendedConfiguration()
 {
     QMap<QString, QString> settings;
     int size = 99;
-    QString cmd;
     TaskResult process;
     QStringList recommended;
     // ctrl directory
@@ -142,8 +140,7 @@ QMap<QString, QString> WpaSup::getRecommendedConfiguration()
     recommended.append(QString("netctlgui-helper"));
     recommended.append(QString("netctlgui-helper-suid"));
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("FORCE_SUDO")] = QString("false");
             break;
@@ -160,8 +157,7 @@ QMap<QString, QString> WpaSup::getRecommendedConfiguration()
     recommended.append("kdesu");
     recommended.append("gksu");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("SUDO_PATH")] = process.output.trimmed();
             break;
@@ -173,8 +169,7 @@ QMap<QString, QString> WpaSup::getRecommendedConfiguration()
     recommended.clear();
     recommended.append("wpa_cli");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("WPACLI_PATH")] = process.output.trimmed();
             break;
@@ -189,8 +184,7 @@ QMap<QString, QString> WpaSup::getRecommendedConfiguration()
     recommended.clear();
     recommended.append("wpa_supplicant");
     for (int i=0; i<recommended.count(); i++) {
-        cmd = QString("which ") + recommended[i];
-        process = runTask(cmd, false);
+        process = runTask(QString("which %1").arg(recommended[i]), false);
         if (process.exitCode == 0) {
             settings[QString("WPASUP_PATH")] = process.output.trimmed();
             break;
@@ -208,11 +202,11 @@ bool WpaSup::isProfileActive(const QString essid)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "ESSID" << essid;
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
-    if (netctlProfile == 0) {
+    if (netctlProfile == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
@@ -236,11 +230,11 @@ bool WpaSup::isProfileExists(const QString essid)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "ESSID" << essid;
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
-    if (netctlProfile == 0) {
+    if (netctlProfile == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
@@ -269,8 +263,7 @@ QList<netctlWifiInfo> WpaSup::scanWifi()
         stopWpaSupplicant();
         return scanResults;
     }
-    if (!wpaCliCall(QString("scan")))
-        return scanResults;
+    if (!wpaCliCall(QString("scan"))) return scanResults;
     waitForProcess(3);
 
     QStringList rawOutput = getWpaCliOutput(QString("scan_results")).split(QChar('\n'), QString::SkipEmptyParts);
@@ -278,22 +271,22 @@ QList<netctlWifiInfo> WpaSup::scanWifi()
     rawOutput.removeFirst();
     // remove duplicates
     QStringList rawList;
+    QStringList names;
     for (int i=0; i<rawOutput.count(); i++) {
-        bool exist = false;
-        if (rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts).count() > 4)
-            for (int j=0; j<rawList.count(); j++)
-                if (rawList[j].split(QChar('\t'), QString::SkipEmptyParts).count() > 4)
-                    if (rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts)[4] ==
-                            rawList[j].split(QChar('\t'), QString::SkipEmptyParts)[4])
-                        exist = true;
-        if (!exist)
+        if (rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts).count() == 4) {
             rawList.append(rawOutput[i]);
+            continue;
+        } else if (rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts).count() == 5) {
+            if (names.contains(rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts)[4])) continue;
+            names.append(rawOutput[i].split(QChar('\t'), QString::SkipEmptyParts)[4]);
+            rawList.append(rawOutput[i]);
+        }
     }
 
     for (int i=0; i<rawList.count(); i++) {
         netctlWifiInfo wifiPoint;
         // point name
-        if (rawList[i].split(QChar('\t'), QString::SkipEmptyParts).count() > 4)
+        if (rawList[i].split(QChar('\t'), QString::SkipEmptyParts).count() == 5)
             wifiPoint.name = rawList[i].split(QChar('\t'), QString::SkipEmptyParts)[4];
         else
             wifiPoint.name = QString("<hidden>");
@@ -327,27 +320,27 @@ QList<netctlWifiInfo> WpaSup::scanWifi()
 bool WpaSup::startWpaSupplicant()
 {
     if (debug) qDebug() << PDEBUG;
-    if (ctrlDir == 0) {
+    if (ctrlDir.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return false;
     }
-    if (ctrlGroup == 0) {
+    if (ctrlGroup.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find group";
         return false;
     }
-    if (pidFile == 0) {
+    if (pidFile.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find PID file";
         return false;
     }
-    if (wpaDrivers == 0) {
+    if (wpaDrivers.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find drivers";
         return false;
     }
-    if (wpaSupPath == 0) {
+    if (wpaSupPath.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find wpa_supplicant";
         return false;
     }
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
@@ -357,12 +350,10 @@ bool WpaSup::startWpaSupplicant()
         return false;
     }
 
-    if (QFile(pidFile).exists())
-        return true;
-    QString interface = interfaces[0];
-    QString cmd = sudoCommand + QString(" ") + wpaSupPath + QString(" -B -P ") + pidFile +
-            QString(" -i ") + interface + QString(" -D ") + wpaDrivers +
-            QString(" -C \"DIR=") + ctrlDir + QString(" GROUP=") + ctrlGroup + QString("\"");
+    if (QFile(pidFile).exists()) return true;
+    QString cmd = QString("%1 %2 -B -P \"%3\" -i %4 -D %5 -C \"DIR=%6 GROUP=%7\"")
+                    .arg(sudoCommand).arg(wpaSupPath).arg(pidFile).arg(interfaces[0])
+                    .arg(wpaDrivers).arg(ctrlDir).arg(ctrlGroup);
     if (debug) qDebug() << PDEBUG << ":" << "Run cmd" << cmd;
     TaskResult process = runTask(cmd, useSuid);
     waitForProcess(1);
@@ -370,10 +361,7 @@ bool WpaSup::startWpaSupplicant()
     if (process.exitCode != 0)
         if (debug) qDebug() << PDEBUG << ":" << "Error" << process.error;
 
-    if (process.exitCode == 0)
-        return true;
-    else
-        return false;
+    return (process.exitCode == 0);
 }
 
 
@@ -396,19 +384,19 @@ QString WpaSup::getWpaCliOutput(const QString commandLine)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Command" << commandLine;
-    if (ctrlDir == 0) {
+    if (ctrlDir.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return QString();
     }
-    if (pidFile == 0) {
+    if (pidFile.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find PID file";
         return QString();
     }
-    if (wpaCliPath == 0) {
+    if (wpaCliPath.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find wpa_cli";
         return QString();
     }
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return QString();
     }
@@ -453,19 +441,19 @@ bool WpaSup::wpaCliCall(const QString commandLine)
 {
     if (debug) qDebug() << PDEBUG;
     if (debug) qDebug() << PDEBUG << ":" << "Command" << commandLine;
-    if (ctrlDir == 0) {
+    if (ctrlDir.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find directory";
         return false;
     }
-    if (pidFile == 0) {
+    if (pidFile.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find PID file";
         return false;
     }
-    if (wpaCliPath == 0) {
+    if (wpaCliPath.isEmpty()) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find wpa_cli";
         return false;
     }
-    if (netctlCommand == 0) {
+    if (netctlCommand == nullptr) {
         if (debug) qDebug() << PDEBUG << ":" << "Could not find library";
         return false;
     }
@@ -485,8 +473,5 @@ bool WpaSup::wpaCliCall(const QString commandLine)
     if (process.exitCode != 0)
         if (debug) qDebug() << PDEBUG << ":" << "Error" << process.error;
 
-    if (process.exitCode == 0)
-        return true;
-    else
-        return false;
+    return (process.exitCode == 0);
 }