Merge pull request #948 from hypnosis-i2p/openssl

fixes #945 and #935

qt/i2pd_qt/ClientTunnelPane.cpp

@@ -3,14 +3,15 @@
 #include "SignatureTypeComboboxFactory.h"
 #include "QVBoxLayout"
 
-ClientTunnelPane::ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf):
+ClientTunnelPane::ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow):
-    TunnelPane(tunnelsPageUpdateListener, tunconf) {}
+    TunnelPane(tunnelsPageUpdateListener, tunconf, wrongInputPane_, wrongInputLabel_, mainWindow) {}
 
 void ClientTunnelPane::setGroupBoxTitle(const QString & title) {
     clientTunnelNameGroupBox->setTitle(title);
 }
 
 void ClientTunnelPane::deleteClientTunnelForm() {
+    TunnelPane::deleteTunnelForm();
     delete clientTunnelNameGroupBox;
     clientTunnelNameGroupBox=nullptr;
 

qt/i2pd_qt/ClientTunnelPane.h

@@ -14,7 +14,7 @@ class TunnelPane;
 class ClientTunnelPane : public TunnelPane {
     Q_OBJECT
 public:
-    ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf);
+    ClientTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ClientTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow);
     virtual ~ClientTunnelPane(){}
     virtual ServerTunnelPane* asServerTunnelPane();
     virtual ClientTunnelPane* asClientTunnelPane();
@@ -68,6 +68,7 @@ private:
     }
 protected:
     virtual bool applyDataFromUIToTunnelConfig() {
+        QString cannotSaveSettings = QApplication::tr("Cannot save settings.");
         bool ok=TunnelPane::applyDataFromUIToTunnelConfig();
         if(!ok)return false;
         ClientTunnelConfig* ctc=tunnelConfig->asClientTunnelConfig();
@@ -78,7 +79,11 @@ protected:
 
         auto portStr=portLineEdit->text();
         int portInt=portStr.toInt(&ok);
-        if(!ok)return false;
+
+        if(!ok){
+            highlightWrongInput(QApplication::tr("Bad port, must be int.")+" "+cannotSaveSettings,portLineEdit);
+            return false;
+        }
         ctc->setport(portInt);
 
         ctc->setkeys(keysLineEdit->text().toStdString());
@@ -87,7 +92,10 @@ protected:
 
         auto dportStr=destinationPortLineEdit->text();
         int dportInt=dportStr.toInt(&ok);
-        if(!ok)return false;
+        if(!ok){
+            highlightWrongInput(QApplication::tr("Bad destinationPort, must be int.")+" "+cannotSaveSettings,destinationPortLineEdit);
+            return false;
+        }
         ctc->setdestinationPort(dportInt);
 
         ctc->setsigType(readSigTypeComboboxUI(sigTypeComboBox));

qt/i2pd_qt/ServerTunnelPane.cpp

@@ -2,8 +2,8 @@
 #include "ClientContext.h"
 #include "SignatureTypeComboboxFactory.h"
 
-ServerTunnelPane::ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf):
+ServerTunnelPane::ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow):
-    TunnelPane(tunnelsPageUpdateListener, tunconf) {}
+    TunnelPane(tunnelsPageUpdateListener, tunconf, wrongInputPane_, wrongInputLabel_, mainWindow) {}
 
 void ServerTunnelPane::setGroupBoxTitle(const QString & title) {
     serverTunnelNameGroupBox->setTitle(title);
@@ -266,6 +266,7 @@ int ServerTunnelPane::appendServerTunnelForm(
 }
 
 void ServerTunnelPane::deleteServerTunnelForm() {
+    TunnelPane::deleteTunnelForm();
     delete serverTunnelNameGroupBox;//->deleteLater();
     serverTunnelNameGroupBox=nullptr;
 

qt/i2pd_qt/ServerTunnelPane.h

@@ -1,9 +1,6 @@
 #ifndef SERVERTUNNELPANE_H
 #define SERVERTUNNELPANE_H
 
-#include "TunnelPane.h"
-#include "TunnelsPageUpdateListener.h"
-
 #include <QtCore/QVariant>
 #include <QtWidgets/QAction>
 #include <QtWidgets/QApplication>
@@ -23,6 +20,9 @@
 
 #include "assert.h"
 
+#include "TunnelPane.h"
+#include "TunnelsPageUpdateListener.h"
+
 class ServerTunnelConfig;
 
 class ClientTunnelPane;
@@ -31,7 +31,7 @@ class ServerTunnelPane : public TunnelPane {
     Q_OBJECT
 
 public:
-    ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf);
+    ServerTunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener, ServerTunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow);
     virtual ~ServerTunnelPane(){}
 
     virtual ServerTunnelPane* asServerTunnelPane();
@@ -119,6 +119,7 @@ private:
 
 protected:
     virtual bool applyDataFromUIToTunnelConfig() {
+        QString cannotSaveSettings = QApplication::tr("Cannot save settings.");
         bool ok=TunnelPane::applyDataFromUIToTunnelConfig();
         if(!ok)return false;
         ServerTunnelConfig* stc=tunnelConfig->asServerTunnelConfig();
@@ -127,14 +128,20 @@ protected:
 
         auto portStr=portLineEdit->text();
         int portInt=portStr.toInt(&ok);
-        if(!ok)return false;
+        if(!ok){
+            highlightWrongInput(QApplication::tr("Bad port, must be int.")+" "+cannotSaveSettings,portLineEdit);
+            return false;
+        }
         stc->setport(portInt);
 
         stc->setkeys(keysLineEdit->text().toStdString());
 
         auto str=inPortLineEdit->text();
         int inPortInt=str.toInt(&ok);
-        if(!ok)return false;
+        if(!ok){
+            highlightWrongInput(QApplication::tr("Bad inPort, must be int.")+" "+cannotSaveSettings,inPortLineEdit);
+            return false;
+        }
         stc->setinPort(inPortInt);
 
         stc->setaccessList(accessListLineEdit->text().toStdString());
@@ -147,7 +154,10 @@ protected:
 
         auto mcStr=maxConnsLineEdit->text();
         uint32_t mcInt=(uint32_t)mcStr.toInt(&ok);
-        if(!ok)return false;
+        if(!ok){
+            highlightWrongInput(QApplication::tr("Bad maxConns, must be int.")+" "+cannotSaveSettings,maxConnsLineEdit);
+            return false;
+        }
         stc->setmaxConns(mcInt);
 
         stc->setgzip(gzipCheckBox->isChecked());

qt/i2pd_qt/TunnelConfig.cpp

@@ -21,7 +21,7 @@ void TunnelConfig::saveI2CPParametersToStringStream(std::stringstream& out) {
     if (i2cpParameters.getCrypto_tagsToSend().toUShort() != i2p::client::DEFAULT_TAGS_TO_SEND)
             out << i2p::client::I2CP_PARAM_TAGS_TO_SEND << "="
                     << i2cpParameters.getCrypto_tagsToSend().toStdString() << "\n";
-    if (!i2cpParameters.getExplicitPeers().isEmpty())
+    if (!i2cpParameters.getExplicitPeers().isEmpty()) //todo #947
             out << i2p::client::I2CP_PARAM_EXPLICIT_PEERS << "="
                     << i2cpParameters.getExplicitPeers().toStdString() << "\n";
     out << "\n";

qt/i2pd_qt/TunnelPane.cpp

@@ -1,8 +1,13 @@
 #include "TunnelPane.h"
+
 #include "QMessageBox"
+#include "mainwindow.h"
 
-TunnelPane::TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunnelConfig_):
+TunnelPane::TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunnelConfig_, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow_):
     QObject(),
+    mainWindow(mainWindow_),
+    wrongInputPane(wrongInputPane_),
+    wrongInputLabel(wrongInputLabel_),
     tunnelConfig(tunnelConfig_),
     tunnelsPageUpdateListener(tunnelsPageUpdateListener_),
     gridLayoutWidget_2(nullptr) {}
@@ -179,7 +184,7 @@ void TunnelPane::appendControlsForI2CPParameters(I2CPParameters& i2cpParameters,
 
 void TunnelPane::updated() {
     std::string oldName=tunnelConfig->getName();
-    if(!applyDataFromUIToTunnelConfig())return;//TODO visualise bad input
+    if(!applyDataFromUIToTunnelConfig())return;
     tunnelsPageUpdateListener->updated(oldName, tunnelConfig);
 }
 
@@ -218,3 +223,14 @@ QString TunnelPane::readTunnelTypeComboboxData() {
 i2p::data::SigningKeyType TunnelPane::readSigTypeComboboxUI(QComboBox* sigTypeComboBox) {
     return (i2p::data::SigningKeyType) sigTypeComboBox->currentData().toInt();
 }
+
+void TunnelPane::deleteTunnelForm() {
+    widgetlocks.deleteListeners();
+}
+
+void TunnelPane::highlightWrongInput(QString warningText, QWidget* controlWithWrongInput) {
+    wrongInputPane->setVisible(true);
+    wrongInputLabel->setText(warningText);
+    if(controlWithWrongInput)controlWithWrongInput->setFocus();
+    mainWindow->showTunnelsPage();
+}

qt/i2pd_qt/TunnelPane.h

@@ -23,18 +23,28 @@ class ClientTunnelPane;
 class TunnelConfig;
 class I2CPParameters;
 
+class MainWindow;
+
 class TunnelPane : public QObject {
 
     Q_OBJECT
 
 public:
-    TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunconf);
+    TunnelPane(TunnelsPageUpdateListener* tunnelsPageUpdateListener_, TunnelConfig* tunconf, QWidget* wrongInputPane_, QLabel* wrongInputLabel_, MainWindow* mainWindow_);
     virtual ~TunnelPane(){}
 
+    void deleteTunnelForm();
+
+    void hideWrongInputLabel() const { wrongInputPane->setVisible(false); }
+    void highlightWrongInput(QString warningText, QWidget* controlWithWrongInput);
+
     virtual ServerTunnelPane* asServerTunnelPane()=0;
     virtual ClientTunnelPane* asClientTunnelPane()=0;
 
 protected:
+    MainWindow* mainWindow;
+    QWidget * wrongInputPane;
+    QLabel* wrongInputLabel;
     TunnelConfig* tunnelConfig;
     widgetlockregistry widgetlocks;
     TunnelsPageUpdateListener* tunnelsPageUpdateListener;
@@ -82,8 +92,10 @@ protected:
     //should be created by factory
     i2p::data::SigningKeyType readSigTypeComboboxUI(QComboBox* sigTypeComboBox);
 
+public:
     //returns false when invalid data at UI
     virtual bool applyDataFromUIToTunnelConfig() {
+        hideWrongInputLabel();
         tunnelConfig->setName(nameLineEdit->text().toStdString());
         tunnelConfig->setType(readTunnelTypeComboboxData());
         I2CPParameters& i2cpParams=tunnelConfig->getI2cpParameters();
@@ -94,7 +106,7 @@ protected:
         i2cpParams.setCrypto_tagsToSend(crypto_tagsToSendLineEdit->text());
         return true;
     }
-
+protected:
     void setupTunnelPane(
             TunnelConfig* tunnelConfig,
             QGroupBox *tunnelGroupBox,

qt/i2pd_qt/generalsettingswidget.ui

@@ -929,7 +929,7 @@
           <item>
            <widget class="QLabel" name="label_7">
             <property name="text">
-             <string>Port (leave empty to auto-assign):</string>
+             <string>Port (leave 0 to auto-assign):</string>
             </property>
            </widget>
           </item>
@@ -1500,7 +1500,7 @@
           <item>
            <widget class="QLabel" name="bandwidthLabel">
             <property name="text">
-             <string>Bandwidth limit (integer):</string>
+             <string>Bandwidth limit (integer or a letter):</string>
             </property>
            </widget>
           </item>

qt/i2pd_qt/mainwindow.cpp

@@ -82,6 +82,11 @@ MainWindow::MainWindow(QWidget *parent) :
     ui->settingsContents->setAutoFillBackground(true);
     ui->settingsContents->setPalette(pal);
     */
+    QPalette pal(palette());
+    pal.setColor(QPalette::Background, Qt::red);
+    ui->wrongInputLabel->setAutoFillBackground(true);
+    ui->wrongInputLabel->setPalette(pal);
+    ui->wrongInputLabel->setVisible(false);
 
 #ifndef ANDROID
     createActions();
@@ -565,7 +570,7 @@ void MainWindow::initUInt16Box(ConfigOption option, QLineEdit* numberLineEdit, Q
     configItems.append(new UInt16StringItem(option, numberLineEdit, fieldNameTranslated));
 }
 void MainWindow::initStringBox(ConfigOption option, QLineEdit* lineEdit){
-    configItems.append(new BaseStringItem(option, lineEdit));
+    configItems.append(new BaseStringItem(option, lineEdit, QString()));
 }
 NonGUIOptionItem* MainWindow::initNonGUIOption(ConfigOption option) {
     NonGUIOptionItem * retValue;
@@ -623,6 +628,9 @@ void MainWindow::loadAllConfigs(){
 }
 /** returns false iff not valid items present and save was aborted */
 bool MainWindow::saveAllConfigs(){
+    QString cannotSaveSettings = QApplication::tr("Cannot save settings.");
+    ui->wrongInputLabel->setVisible(false);
+
     programOptionsWriterCurrentSection="";
     /*if(!logFileNameOption->lineEdit->text().trimmed().isEmpty())logOption->optionValue=boost::any(std::string("file"));
     else logOption->optionValue=boost::any(std::string("stdout"));*/
@@ -632,7 +640,10 @@ bool MainWindow::saveAllConfigs(){
     std::stringstream out;
     for(QList<MainWindowItem*>::iterator it = configItems.begin(); it!= configItems.end(); ++it) {
         MainWindowItem* item = *it;
-        if(!item->isValid()) return false;
+        if(!item->isValid()){
+            highlightWrongInput(QApplication::tr("Invalid value for")+" "+item->getConfigOption().section+"::"+item->getConfigOption().option+". "+item->getRequirementToBeValid()+" "+cannotSaveSettings, item->getWidgetToFocus());
+            return false;
+        }
     }
 
     for(QList<MainWindowItem*>::iterator it = configItems.begin(); it!= configItems.end(); ++it) {
@@ -688,27 +699,33 @@ void MainWindow::appendTunnelForms(std::string tunnelNameToFocus) {
         TunnelConfig* tunconf = it->second;
         ServerTunnelConfig* stc = tunconf->asServerTunnelConfig();
         if(stc){
-            ServerTunnelPane * tunnelPane=new ServerTunnelPane(&tunnelsPageUpdateListener, stc);
+            ServerTunnelPane * tunnelPane=new ServerTunnelPane(&tunnelsPageUpdateListener, stc, ui->wrongInputLabel, ui->wrongInputLabel, this);
             int h=tunnelPane->appendServerTunnelForm(stc, ui->tunnelsScrollAreaWidgetContents, tunnelPanes.size(), height);
             height+=h;
-            qDebug() << "tun.height:" << height << "sz:" <<  tunnelPanes.size();
+            //qDebug() << "tun.height:" << height << "sz:" <<  tunnelPanes.size();
             tunnelPanes.push_back(tunnelPane);
-            if(name==tunnelNameToFocus)tunnelPane->getNameLineEdit()->setFocus();
+            if(name==tunnelNameToFocus){
+                tunnelPane->getNameLineEdit()->setFocus();
+                //todo ui->settingsScrollArea->###scroll
+            }
             continue;
         }
         ClientTunnelConfig* ctc = tunconf->asClientTunnelConfig();
         if(ctc){
-            ClientTunnelPane * tunnelPane=new ClientTunnelPane(&tunnelsPageUpdateListener, ctc);
+            ClientTunnelPane * tunnelPane=new ClientTunnelPane(&tunnelsPageUpdateListener, ctc, ui->wrongInputLabel, ui->wrongInputLabel, this);
             int h=tunnelPane->appendClientTunnelForm(ctc, ui->tunnelsScrollAreaWidgetContents, tunnelPanes.size(), height);
             height+=h;
-            qDebug() << "tun.height:" << height << "sz:" <<  tunnelPanes.size();
+            //qDebug() << "tun.height:" << height << "sz:" <<  tunnelPanes.size();
             tunnelPanes.push_back(tunnelPane);
-            if(name==tunnelNameToFocus)tunnelPane->getNameLineEdit()->setFocus();
+            if(name==tunnelNameToFocus){
+                tunnelPane->getNameLineEdit()->setFocus();
+                //todo ui->settingsScrollArea->###scroll
+            }
             continue;
         }
         throw "unknown TunnelConfig subtype";
     }
-    qDebug() << "tun.setting height:" << height;
+    //qDebug() << "tun.setting height:" << height;
     ui->tunnelsScrollAreaWidgetContents->setGeometry(QRect(0, 0, 621, height));
     QList<QWidget*> childWidgets = ui->tunnelsScrollAreaWidgetContents->findChildren<QWidget*>();
     foreach(QWidget* widget, childWidgets)
@@ -748,6 +765,15 @@ void MainWindow::reloadTunnelsConfigAndUI(std::string tunnelNameToFocus) {
 void MainWindow::SaveTunnelsConfig() {
     std::stringstream out;
 
+    //validate and show red if wrong
+    for (std::list<TunnelPane*>::iterator it=tunnelPanes.begin(); it!=tunnelPanes.end(); ++it) {
+        TunnelPane* tunpane = *it;
+        if(!tunpane->applyDataFromUIToTunnelConfig()) {
+            //!valid
+            return;
+        }
+    }
+
     for (std::map<std::string,TunnelConfig*>::iterator it=tunnelConfigs.begin(); it!=tunnelConfigs.end(); ++it) {
         const std::string& name = it->first;
         TunnelConfig* tunconf = it->second;
@@ -777,7 +803,7 @@ void MainWindow::TunnelsPageUpdateListenerMainWindowImpl::updated(std::string ol
         if(it!=mainWindow->tunnelConfigs.end())mainWindow->tunnelConfigs.erase(it);
         mainWindow->tunnelConfigs[tunConf->getName()]=tunConf;
     }
-    mainWindow->SaveTunnelsConfig();
+    mainWindow->saveAllConfigs();
 }
 
 void MainWindow::TunnelsPageUpdateListenerMainWindowImpl::needsDeleting(std::string oldName){
@@ -833,3 +859,10 @@ void MainWindow::anchorClickedHandler(const QUrl & link) {
 void MainWindow::backClickedFromChild() {
     showStatusPage(statusPage);
 }
+
+void MainWindow::highlightWrongInput(QString warningText, QWidget* widgetToFocus) {
+    ui->wrongInputLabel->setVisible(true);
+    ui->wrongInputLabel->setText(warningText);
+    if(widgetToFocus)widgetToFocus->setFocus();
+    showSettingsPage();
+}

qt/i2pd_qt/mainwindow.h

@@ -93,8 +93,13 @@ class MainWindow;
 class MainWindowItem : public QObject {
     Q_OBJECT
     ConfigOption option;
+    QWidget* widgetToFocus;
+    QString requirementToBeValid;
 public:
-    MainWindowItem(ConfigOption option_) : option(option_) {}
+    MainWindowItem(ConfigOption option_, QWidget* widgetToFocus_, QString requirementToBeValid_) : option(option_), widgetToFocus(widgetToFocus_), requirementToBeValid(requirementToBeValid_) {}
+    QWidget* getWidgetToFocus(){return widgetToFocus;}
+    QString& getRequirementToBeValid() { return requirementToBeValid; }
+    ConfigOption& getConfigOption() { return option; }
     boost::any optionValue;
     virtual ~MainWindowItem(){}
     virtual void installListeners(MainWindow *mainWindow);
@@ -145,7 +150,7 @@ public:
 };
 class NonGUIOptionItem : public MainWindowItem {
 public:
-    NonGUIOptionItem(ConfigOption option_) : MainWindowItem(option_) {};
+    NonGUIOptionItem(ConfigOption option_) : MainWindowItem(option_, nullptr, QString()) {};
     virtual ~NonGUIOptionItem(){}
     virtual bool isValid() { return true; }
 };
@@ -153,7 +158,7 @@ class BaseStringItem : public MainWindowItem {
     Q_OBJECT
 public:
     QLineEdit* lineEdit;
-    BaseStringItem(ConfigOption option_, QLineEdit* lineEdit_) : MainWindowItem(option_), lineEdit(lineEdit_){};
+    BaseStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString requirementToBeValid_) : MainWindowItem(option_, lineEdit_, requirementToBeValid_), lineEdit(lineEdit_){};
     virtual ~BaseStringItem(){}
     virtual void installListeners(MainWindow *mainWindow);
     virtual QString toString(){
@@ -175,7 +180,7 @@ class FileOrFolderChooserItem : public BaseStringItem {
 public:
     QPushButton* browsePushButton;
     FileOrFolderChooserItem(ConfigOption option_, QLineEdit* lineEdit_, QPushButton* browsePushButton_) :
-        BaseStringItem(option_, lineEdit_), browsePushButton(browsePushButton_) {}
+        BaseStringItem(option_, lineEdit_, QString()), browsePushButton(browsePushButton_) {}
     virtual ~FileOrFolderChooserItem(){}
 };
 class FileChooserItem : public FileOrFolderChooserItem {
@@ -201,7 +206,7 @@ public:
 class ComboBoxItem : public MainWindowItem {
 public:
     QComboBox* comboBox;
-    ComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : MainWindowItem(option_), comboBox(comboBox_){};
+    ComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : MainWindowItem(option_,comboBox_,QString()), comboBox(comboBox_){};
     virtual ~ComboBoxItem(){}
     virtual void installListeners(MainWindow *mainWindow);
     virtual void loadFromConfigOption()=0;
@@ -260,7 +265,7 @@ public:
 class CheckBoxItem : public MainWindowItem {
 public:
     QCheckBox* checkBox;
-    CheckBoxItem(ConfigOption option_, QCheckBox* checkBox_) : MainWindowItem(option_), checkBox(checkBox_){};
+    CheckBoxItem(ConfigOption option_, QCheckBox* checkBox_) : MainWindowItem(option_,checkBox_,QString()), checkBox(checkBox_){};
     virtual ~CheckBoxItem(){}
     virtual void installListeners(MainWindow *mainWindow);
     virtual void loadFromConfigOption(){
@@ -276,58 +281,77 @@ public:
 class BaseFormattedStringItem : public BaseStringItem {
 public:
     QString fieldNameTranslated;
-    BaseFormattedStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
+    BaseFormattedStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_, QString requirementToBeValid_) :
-        BaseStringItem(option_, lineEdit_), fieldNameTranslated(fieldNameTranslated_) {};
+        BaseStringItem(option_, lineEdit_, requirementToBeValid_), fieldNameTranslated(fieldNameTranslated_) {};
     virtual ~BaseFormattedStringItem(){}
     virtual bool isValid()=0;
 };
 class IntegerStringItem : public BaseFormattedStringItem {
 public:
     IntegerStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
-        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_) {};
+        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be a valid integer.")) {};
     virtual ~IntegerStringItem(){}
-    virtual bool isValid(){return true;}
+    virtual bool isValid(){
+        auto str=lineEdit->text();
+        bool ok;
+        str.toInt(&ok);
+        return ok;
+    }
     virtual QString toString(){return QString::number(boost::any_cast<int>(optionValue));}
     virtual boost::any fromString(QString s){return boost::any(std::stoi(s.toStdString()));}
 };
 class UShortStringItem : public BaseFormattedStringItem {
 public:
     UShortStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
-        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_) {};
+        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned short integer.")) {};
     virtual ~UShortStringItem(){}
-    virtual bool isValid(){return true;}
+    virtual bool isValid(){
+        auto str=lineEdit->text();
+        bool ok;
+        str.toUShort(&ok);
+        return ok;
+    }
     virtual QString toString(){return QString::number(boost::any_cast<unsigned short>(optionValue));}
     virtual boost::any fromString(QString s){return boost::any((unsigned short)std::stoi(s.toStdString()));}
 };
 class UInt32StringItem : public BaseFormattedStringItem {
 public:
     UInt32StringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
-        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_) {};
+        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned 32-bit integer.")) {};
     virtual ~UInt32StringItem(){}
-    virtual bool isValid(){return true;}
+    virtual bool isValid(){
+        auto str=lineEdit->text();
+        bool ok;
+        str.toUInt(&ok);
+        return ok;
+    }
     virtual QString toString(){return QString::number(boost::any_cast<uint32_t>(optionValue));}
     virtual boost::any fromString(QString s){return boost::any((uint32_t)std::stoi(s.toStdString()));}
 };
 class UInt16StringItem : public BaseFormattedStringItem {
 public:
     UInt16StringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
-        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_) {};
+        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be unsigned 16-bit integer.")) {};
     virtual ~UInt16StringItem(){}
-    virtual bool isValid(){return true;}
+    virtual bool isValid(){
+        auto str=lineEdit->text();
+        bool ok;
+        str.toUShort(&ok);
+        return ok;
+    }
     virtual QString toString(){return QString::number(boost::any_cast<uint16_t>(optionValue));}
     virtual boost::any fromString(QString s){return boost::any((uint16_t)std::stoi(s.toStdString()));}
 };
 class IPAddressStringItem : public BaseFormattedStringItem {
 public:
     IPAddressStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
-        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_) {};
+        BaseFormattedStringItem(option_, lineEdit_, fieldNameTranslated_, QApplication::tr("Must be an IPv4 address")) {};
-    virtual bool isValid(){return true;}
+    virtual bool isValid(){return true;}//todo
 };
 class TCPPortStringItem : public UShortStringItem {
 public:
     TCPPortStringItem(ConfigOption option_, QLineEdit* lineEdit_, QString fieldNameTranslated_) :
         UShortStringItem(option_, lineEdit_, fieldNameTranslated_) {};
-    virtual bool isValid(){return true;}
 };
 
 namespace Ui {
@@ -354,6 +378,8 @@ public:
 
     void setI2PController(i2p::qt::Controller* controller_);
 
+    void highlightWrongInput(QString warningText, QWidget* widgetToFocus);
+
     //typedef std::function<QString ()> DefaultValueGetter;
 
 //#ifndef ANDROID
@@ -385,7 +411,7 @@ private slots:
     void runPeerTest();
     void enableTransit();
     void disableTransit();
-
+public slots:
     void showStatus_local_destinations_Page();
     void showStatus_leasesets_Page();
     void showStatus_tunnels_Page();
@@ -546,9 +572,9 @@ private:
             TunnelConfig* tc=it->second;
             tunnelConfigs.erase(it);
             delete tc;
-            SaveTunnelsConfig();
-            reloadTunnelsConfigAndUI("");
         }
+        saveAllConfigs();
+        reloadTunnelsConfigAndUI("");
     }
 
     std::string GenerateNewTunnelName() {
@@ -583,7 +609,7 @@ private:
                                                       destinationPort,
                                                       sigType);
 
-        SaveTunnelsConfig();
+        saveAllConfigs();
         reloadTunnelsConfigAndUI(name);
     }
 
@@ -622,7 +648,7 @@ private:
                                                   isUniqueLocal);
 
 
-        SaveTunnelsConfig();
+        saveAllConfigs();
         reloadTunnelsConfigAndUI(name);
     }
 

qt/i2pd_qt/mainwindow.ui

@@ -50,7 +50,7 @@
       <x>10</x>
       <y>10</y>
       <width>888</width>
-      <height>530</height>
+      <height>555</height>
      </rect>
     </property>
     <layout class="QHBoxLayout" name="horizontalLayout">
@@ -167,6 +167,442 @@
        </item>
       </layout>
      </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout_7">
+       <item>
+        <widget class="QLabel" name="wrongInputLabel">
+         <property name="minimumSize">
+          <size>
+           <width>0</width>
+           <height>30</height>
+          </size>
+         </property>
+         <property name="palette">
+          <palette>
+           <active>
+            <colorrole role="WindowText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Button">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Light">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>127</green>
+               <blue>127</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Midlight">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>63</green>
+               <blue>63</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Dark">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Mid">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>170</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Text">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="BrightText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>255</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ButtonText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Base">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>255</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Window">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Shadow">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="AlternateBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>127</green>
+               <blue>127</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>220</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+           </active>
+           <inactive>
+            <colorrole role="WindowText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Button">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Light">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>127</green>
+               <blue>127</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Midlight">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>63</green>
+               <blue>63</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Dark">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Mid">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>170</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Text">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="BrightText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>255</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ButtonText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Base">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>255</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Window">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Shadow">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="AlternateBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>127</green>
+               <blue>127</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>220</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+           </inactive>
+           <disabled>
+            <colorrole role="WindowText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Button">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Light">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>127</green>
+               <blue>127</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Midlight">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>63</green>
+               <blue>63</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Dark">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Mid">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>170</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Text">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="BrightText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>255</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ButtonText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>127</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Base">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Window">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="Shadow">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="AlternateBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipBase">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>255</red>
+               <green>255</green>
+               <blue>220</blue>
+              </color>
+             </brush>
+            </colorrole>
+            <colorrole role="ToolTipText">
+             <brush brushstyle="SolidPattern">
+              <color alpha="255">
+               <red>0</red>
+               <green>0</green>
+               <blue>0</blue>
+              </color>
+             </brush>
+            </colorrole>
+           </disabled>
+          </palette>
+         </property>
+         <property name="text">
+          <string>TextLabel</string>
+         </property>
+         <property name="wordWrap">
+          <bool>true</bool>
+         </property>
+         <property name="margin">
+          <number>10</number>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QStackedWidget" name="stackedWidget">
          <property name="sizePolicy">
@@ -178,7 +614,7 @@
          <property name="minimumSize">
           <size>
            <width>0</width>
-         <height>528</height>
+           <height>0</height>
           </size>
          </property>
          <property name="maximumSize">
@@ -496,6 +932,8 @@
         </widget>
        </item>
       </layout>
+     </item>
+    </layout>
    </widget>
   </widget>
  </widget>

qt/i2pd_qt/widgetlock.h

@@ -12,6 +12,7 @@ class widgetlock : public QObject {
 private:
     QWidget* widget;
     QPushButton* lockButton;
+
 public slots:
     void lockButtonClicked(bool) {
         bool wasEnabled = widget->isEnabled();
@@ -25,7 +26,8 @@ public:
         lockButton->setText(lockButton->tr("Edit"));
         QObject::connect(lockButton,SIGNAL(clicked(bool)), this, SLOT(lockButtonClicked(bool)));
     }
-    virtual ~widgetlock() {
+    virtual ~widgetlock() {}
+    void deleteListener() {
         QObject::disconnect(lockButton,SIGNAL(clicked(bool)), this, SLOT(lockButtonClicked(bool)));
     }
 };

qt/i2pd_qt/widgetlockregistry.h

@@ -9,15 +9,19 @@ class widgetlockregistry {
 
 public:
     widgetlockregistry() : locks() {}
-    virtual ~widgetlockregistry() {
+    virtual ~widgetlockregistry() {}
+    void add(widgetlock* lock) {
+        locks.push_back(lock);
+    }
+
+    void deleteListeners() {
         while(!locks.empty()) {
-            delete locks.back();
+            widgetlock* lock = locks.back();
+            lock->deleteListener();
+            delete lock;
             locks.pop_back();
         }
     }
-    void add(widgetlock* lock) {
-        locks.push_back(lock);
-    }
 };
 
 #endif // WIDGETLOCKREGISTRY_H