qt log viewer now works

daemon/Daemon.cpp

@@ -60,7 +60,11 @@ namespace i2p
 			return service;
 		}
 
-		bool Daemon_Singleton::init(int argc, char* argv[])
+        bool Daemon_Singleton::init(int argc, char* argv[]) {
+            return init(argc, argv, nullptr);
+        }
+
+        bool Daemon_Singleton::init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream)
         {
 			i2p::config::Init();
 			i2p::config::ParseCmdline(argc, argv);
@@ -104,7 +108,10 @@ namespace i2p
 				logs = "file";
 
 			i2p::log::Logger().SetLogLevel(loglevel);
-			if (logs == "file") {
+            if (logstream) {
+                LogPrint(eLogInfo, "Log: will send messages to std::ostream");
+                i2p::log::Logger().SendTo (logstream);
+            } else if (logs == "file") {
 				if (logfile == "")
 					logfile = i2p::fs::DataDirPath("i2pd.log");
 				LogPrint(eLogInfo, "Log: will send messages to ", logfile);

daemon/Daemon.h

@@ -3,6 +3,7 @@
 
 #include <memory>
 #include <string>
+#include <ostream>
 
 namespace i2p
 {
@@ -12,6 +13,7 @@ namespace util
 	class Daemon_Singleton
 	{
 		public:
+            virtual bool init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream);
             virtual bool init(int argc, char* argv[]);
             virtual bool start();
 			virtual bool stop();

libi2pd/Log.cpp

@@ -8,6 +8,9 @@
 
 #include "Log.h"
 
+//for std::transform
+#include <algorithm>
+
 namespace i2p {
 namespace log {
 	static Log logger;
@@ -107,7 +110,18 @@ namespace log {
 		}
 	}
 
-	void Log::SetLogLevel (const std::string& level) {
+    std::string str_tolower(std::string s) {
+        std::transform(s.begin(), s.end(), s.begin(),
+                    // static_cast<int(*)(int)>(std::tolower)         // wrong
+                    // [](int c){ return std::tolower(c); }           // wrong
+                    // [](char c){ return std::tolower(c); }          // wrong
+                       [](unsigned char c){ return std::tolower(c); } // correct
+                      );
+        return s;
+    }
+
+    void Log::SetLogLevel (const std::string& level_) {
+        std::string level=str_tolower(level_);
 		if      (level == "none")  { m_MinLevel = eLogNone; }
 		else if (level == "error") { m_MinLevel = eLogError; }
 		else if (level == "warn")  { m_MinLevel = eLogWarning; }

qt/i2pd_qt/DaemonQT.cpp

@@ -1,6 +1,11 @@
+#include <memory>
+
 #include "DaemonQT.h"
 #include "Daemon.h"
 #include "mainwindow.h"
+
+#include "Log.h"
+
 #include <QMessageBox>
 #include <QApplication>
 #include <QMutexLocker>
@@ -90,12 +95,12 @@ namespace qt
 		delete mutex;
 	}
 
-	bool DaemonQTImpl::init(int argc, char* argv[])
+    bool DaemonQTImpl::init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream)
 	{
 		mutex=new QMutex(QMutex::Recursive);
 		setRunningCallback(0);
         m_IsRunning=false;
-		return Daemon.init(argc,argv);
+        return Daemon.init(argc,argv,logstream);
 	}
 
 	void DaemonQTImpl::start()
@@ -146,33 +151,35 @@ namespace qt
         int result;
 
         {
+            std::shared_ptr<std::iostream> logstreamptr=std::make_shared<std::stringstream>();
+            //TODO move daemon init deinit to a bg thread
             DaemonQTImpl daemon;
-            qDebug("Initialising the daemon...");
-            bool daemonInitSuccess = daemon.init(argc, argv);
+            (*logstreamptr) << "Initialising the daemon..." << std::endl;
+            bool daemonInitSuccess = daemon.init(argc, argv, logstreamptr);
             if(!daemonInitSuccess)
             {
                 QMessageBox::critical(0, "Error", "Daemon init failed");
                 return 1;
             }
-            qDebug("Initialised, creating the main window...");
-            MainWindow w;
-            qDebug("Before main window.show()...");
+            LogPrint(eLogDebug, "Initialised, creating the main window...");
+            MainWindow w(logstreamptr);
+            LogPrint(eLogDebug, "Before main window.show()...");
             w.show ();
 
             {
                 i2p::qt::Controller daemonQtController(daemon);
                 w.setI2PController(&daemonQtController);
-                qDebug("Starting the daemon...");
+                LogPrint(eLogDebug, "Starting the daemon...");
                 emit daemonQtController.startDaemon();
                 //daemon.start ();
-                qDebug("Starting GUI event loop...");
+                LogPrint(eLogDebug, "Starting GUI event loop...");
                 result = app.exec();
                 //daemon.stop ();
             }
         }
 
 		//QMessageBox::information(&w, "Debug", "demon stopped");
-		qDebug("Exiting the application");
+        LogPrint(eLogDebug, "Exiting the application");
 		return result;
 	}
 }

qt/i2pd_qt/DaemonQT.h

@@ -25,7 +25,7 @@ namespace qt
          * @param argv
          * @return success
          */
-        bool init(int argc, char* argv[]);
+        bool init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream);
         void start();
         void stop();
         void restart();

qt/i2pd_qt/SignatureTypeComboboxFactory.h

@@ -18,7 +18,7 @@ class SignatureTypeComboBoxFactory
     }
 
 public:
-    static const uint16_t getSigType(const QVariant& var) {
+    static uint16_t getSigType(const QVariant& var) {
         return (uint16_t)var.toInt();
     }
 

qt/i2pd_qt/i2pd_qt.pro

@@ -93,7 +93,8 @@ SOURCES += DaemonQT.cpp mainwindow.cpp \
     textbrowsertweaked1.cpp \
     pagewithbackbutton.cpp \
     widgetlock.cpp \
-    widgetlockregistry.cpp
+    widgetlockregistry.cpp \
+    logviewermanager.cpp
 
 #qt creator does not handle this well
 #SOURCES += $$files(../../libi2pd/*.cpp)
@@ -179,7 +180,8 @@ HEADERS  += DaemonQT.h mainwindow.h \
     widgetlock.h \
     widgetlockregistry.h \
     i2pd.rc \
-    i2pd.rc
+    i2pd.rc \
+    logviewermanager.h
 
 INCLUDEPATH += ../../libi2pd
 INCLUDEPATH += ../../libi2pd_client

qt/i2pd_qt/logviewermanager.cpp

@@ -0,0 +1,45 @@
+#include "logviewermanager.h"
+
+LogViewerManager::LogViewerManager(std::shared_ptr<std::iostream> logStream_,
+                                   QPlainTextEdit* logTextEdit_,
+                                   QObject *parent) :
+    QObject(parent),
+    logStream(logStream_),
+    logTextEdit(logTextEdit_),
+    controllerForBgThread(nullptr)
+{
+    assert(logTextEdit!=nullptr);
+    controllerForBgThread=new i2pd::qt::logviewer::Controller(*this);
+}
+
+namespace i2pd {
+namespace qt {
+namespace logviewer {
+
+QString Worker::pollAndShootATimerForInfiniteRetries() {
+    std::shared_ptr<std::iostream> logStream=logViewerManager.getLogStream();
+    assert(logStream!=nullptr);
+    std::streamsize MAX_SZ=64*1024;
+    char*buf=(char*)malloc(MAX_SZ*sizeof(char));
+    if(buf==nullptr)return "";
+    std::streamsize read=logStream->readsome(buf, MAX_SZ);
+    if(read<0)read=0;
+    QString ret=QString::fromUtf8(buf, read);
+    free(buf);
+    return ret;
+}
+
+Controller::Controller(LogViewerManager &parameter1):logViewerManager(parameter1) {
+    Worker *worker = new Worker(parameter1);
+    worker->moveToThread(&workerThread);
+    connect(&workerThread, &QThread::finished, worker, &QObject::deleteLater);
+    connect(this, &Controller::operate1, worker, &Worker::doWork1);
+    connect(worker, &Worker::resultReady,
+            &parameter1, &LogViewerManager::appendPlainText_atGuiThread);
+    workerThread.start();
+    timerId=startTimer(100/*millis*/);
+}
+
+}
+}
+}

qt/i2pd_qt/logviewermanager.h

@@ -0,0 +1,130 @@
+#ifndef LOGVIEWERMANAGER_H
+#define LOGVIEWERMANAGER_H
+
+#include <QObject>
+#include <QString>
+#include <QPlainTextEdit>
+#include <QScrollBar>
+#include <QComboBox>
+#include <QTimer>
+#include <QThread>
+
+#include <assert.h>
+#include <string>
+
+#include "FS.h"
+#include "Log.h"
+
+class LogViewerManager;
+
+namespace i2pd {
+namespace qt {
+namespace logviewer {
+
+class Worker : public QObject
+{
+    Q_OBJECT
+private:
+    LogViewerManager &logViewerManager;
+public:
+    Worker(LogViewerManager &parameter1):logViewerManager(parameter1){}
+private:
+    QString pollAndShootATimerForInfiniteRetries();
+
+public slots:
+    void doWork1() {
+        /* ... here is the expensive or blocking operation ... */
+        QString read=pollAndShootATimerForInfiniteRetries();
+        emit resultReady(read);
+    }
+
+signals:
+    void resultReady(QString read);
+};
+
+class Controller : public QObject
+{
+    Q_OBJECT
+    QThread workerThread;
+    LogViewerManager& logViewerManager;
+    int timerId;
+public:
+    Controller(LogViewerManager &parameter1);
+    ~Controller() {
+        if(timerId!=0)killTimer(timerId);
+        workerThread.quit();
+        workerThread.wait();
+    }
+signals:
+    void operate1();
+protected:
+    void timerEvent(QTimerEvent */*event*/) {
+        emit operate1();
+    }
+};
+
+}
+}
+}
+
+class LogViewerManager : public QObject
+{
+    Q_OBJECT
+private:
+    std::shared_ptr<std::iostream> logStream;
+    QPlainTextEdit* logTextEdit;
+    i2pd::qt::logviewer::Controller* controllerForBgThread;
+public:
+    //also starts a bg thread (QTimer) polling logStream->readsome(buf, n)
+    explicit LogViewerManager(std::shared_ptr<std::iostream> logStream_,
+                              QPlainTextEdit* logTextEdit_,
+                              QObject *parent);
+    //also deallocs the bg thread (QTimer)
+    virtual ~LogViewerManager(){}
+    const i2pd::qt::logviewer::Controller& getControllerForBgThread() {
+        assert(controllerForBgThread!=nullptr);
+        return *controllerForBgThread;
+    }
+    const QPlainTextEdit* getLogTextEdit(){ return logTextEdit; }
+    const std::shared_ptr<std::iostream> getLogStream(){ return logStream; }
+signals:
+
+public slots:
+    //void appendFromNonGuiThread(std::string read) {
+    //}
+public slots:
+    void appendPlainText_atGuiThread(QString plainText) {
+        if(plainText.length()==0)return;
+        assert(logTextEdit!=nullptr);
+        int scrollPosVert =logTextEdit->verticalScrollBar()->value();
+        int scrollPosHoriz=logTextEdit->horizontalScrollBar()->value();
+        int scrollPosVertMax =logTextEdit->verticalScrollBar()->maximum();
+        const int MAX_LINES=10*1024;
+        logTextEdit->setMaximumBlockCount(MAX_LINES);
+        //logTextEdit->appendPlainText(plainText);
+        //navigate the window to the end
+        //QTextCursor cursor = logTextEdit->textCursor();
+        //cursor.movePosition(QTextCursor::MoveOperation::End);
+        //logTextEdit->setTextCursor(cursor);
+        //QTextCursor prev_cursor = logTextEdit->textCursor();
+        logTextEdit->moveCursor(QTextCursor::End);
+        logTextEdit->insertPlainText(plainText);
+        if(/*prev_cursor.atEnd()*/scrollPosVert==scrollPosVertMax){
+            //logTextEdit->moveCursor(QTextCursor::End);
+            scrollPosVert =logTextEdit->verticalScrollBar()->maximum();
+            scrollPosHoriz=logTextEdit->horizontalScrollBar()->minimum();
+        }
+        //else
+        //    logTextEdit->setTextCursor(prev_cursor);
+        logTextEdit->verticalScrollBar()->setValue(scrollPosVert);
+        logTextEdit->horizontalScrollBar()->setValue(scrollPosHoriz);
+    }
+    /*
+    void replaceText_atGuiThread() {
+        assert(logTextEdit!=nullptr);
+        logTextEdit->setText(QString::fromStdString(nav.getContent()));
+    }
+    */
+};
+
+#endif // LOGVIEWERMANAGER_H

qt/i2pd_qt/mainwindow.cpp

@@ -27,15 +27,19 @@
 #include "DaemonQT.h"
 #include "SignatureTypeComboboxFactory.h"
 
+#include "logviewermanager.h"
+
 std::string programOptionsWriterCurrentSection;
 
-MainWindow::MainWindow(QWidget *parent) :
+MainWindow::MainWindow(std::shared_ptr<std::iostream> logStream_, QWidget *parent) :
     QMainWindow(parent)
+    ,logStream(logStream_)
 #ifndef ANDROID
     ,quitting(false)
 #endif
     ,wasSelectingAtStatusMainPage(false)
     ,showHiddenInfoStatusMainPage(false)
+    ,logViewerManagerPtr(nullptr)
     ,ui(new Ui::MainWindow)
     ,statusButtonsUI(new Ui::StatusButtonsForm)
     ,routerCommandsUI(new Ui::routerCommandsWidget)
@@ -132,6 +136,8 @@ MainWindow::MainWindow(QWidget *parent) :
     QObject::connect(routerCommandsUI->acceptTransitTunnelsPushButton, SIGNAL(released()), this, SLOT(enableTransit()));
     QObject::connect(routerCommandsUI->declineTransitTunnelsPushButton, SIGNAL(released()), this, SLOT(disableTransit()));
 
+    QObject::connect(ui->logViewerPushButton, SIGNAL(released()), this, SLOT(showLogViewerPage()));
+
     QObject::connect(ui->settingsPagePushButton, SIGNAL(released()), this, SLOT(showSettingsPage()));
 
     QObject::connect(ui->tunnelsPagePushButton, SIGNAL(released()), this, SLOT(showTunnelsPage()));
@@ -299,6 +305,9 @@ MainWindow::MainWindow(QWidget *parent) :
     trayIcon->show();
 #endif
 
+    logViewerManagerPtr=new LogViewerManager(logStream_,ui->logViewerTextEdit,this);
+    assert(logViewerManagerPtr!=nullptr);
+    onLoggingOptionsChange();
     //QMetaObject::connectSlotsByName(this);
 }
 
@@ -333,10 +342,11 @@ void MainWindow::showStatusPage(StatusPage newStatusPage){
     }
     wasSelectingAtStatusMainPage=false;
 }
-void MainWindow::showSettingsPage(){ui->stackedWidget->setCurrentIndex(1);setStatusButtonsVisible(false);}
-void MainWindow::showTunnelsPage(){ui->stackedWidget->setCurrentIndex(2);setStatusButtonsVisible(false);}
-void MainWindow::showRestartPage(){ui->stackedWidget->setCurrentIndex(3);setStatusButtonsVisible(false);}
-void MainWindow::showQuitPage(){ui->stackedWidget->setCurrentIndex(4);setStatusButtonsVisible(false);}
+void MainWindow::showLogViewerPage(){ui->stackedWidget->setCurrentIndex(1);setStatusButtonsVisible(false);}
+void MainWindow::showSettingsPage(){ui->stackedWidget->setCurrentIndex(2);setStatusButtonsVisible(false);}
+void MainWindow::showTunnelsPage(){ui->stackedWidget->setCurrentIndex(3);setStatusButtonsVisible(false);}
+void MainWindow::showRestartPage(){ui->stackedWidget->setCurrentIndex(4);setStatusButtonsVisible(false);}
+void MainWindow::showQuitPage(){ui->stackedWidget->setCurrentIndex(5);setStatusButtonsVisible(false);}
 
 void MainWindow::setStatusButtonsVisible(bool visible) {
     ui->statusButtonsPane->setVisible(visible);
@@ -631,6 +641,8 @@ void MainWindow::loadAllConfigs(){
     }
 
     ReadTunnelsConfig();
+
+    onLoggingOptionsChange();
 }
 /** returns false iff not valid items present and save was aborted */
 bool MainWindow::saveAllConfigs(){
@@ -668,6 +680,8 @@ bool MainWindow::saveAllConfigs(){
 
     SaveTunnelsConfig();
 
+    onLoggingOptionsChange();
+
     return true;
 }
 

qt/i2pd_qt/mainwindow.h

@@ -62,6 +62,8 @@
 #include "widgetlockregistry.h"
 #include "widgetlock.h"
 
+class LogViewerManager;
+
 template<typename ValueType>
 bool isType(boost::any& a) {
     return
@@ -215,7 +217,8 @@ public:
 };
 class LogDestinationComboBoxItem : public ComboBoxItem {
 public:
-    LogDestinationComboBoxItem(ConfigOption option_, QComboBox* comboBox_) : ComboBoxItem(option_, comboBox_) {};
+    LogDestinationComboBoxItem(ConfigOption option_, QComboBox* comboBox_) :
+        ComboBoxItem(option_, comboBox_) {}
     virtual ~LogDestinationComboBoxItem(){}
     virtual void loadFromConfigOption(){
         MainWindowItem::loadFromConfigOption();
@@ -228,6 +231,8 @@ public:
         MainWindowItem::saveToStringStream(out);
     }
     virtual bool isValid() { return true; }
+
+    Q_OBJECT
 };
 class LogLevelComboBoxItem : public ComboBoxItem {
 public:
@@ -370,9 +375,10 @@ class Controller;
 
 class MainWindow : public QMainWindow {
     Q_OBJECT
-
+private:
+    std::shared_ptr<std::iostream> logStream;
 public:
-    explicit MainWindow(QWidget *parent=0);
+    explicit MainWindow(std::shared_ptr<std::iostream> logStream_, QWidget *parent=nullptr);
     ~MainWindow();
 
     void setI2PController(i2p::qt::Controller* controller_);
@@ -419,6 +425,7 @@ public slots:
     void showStatus_i2p_tunnels_Page();
     void showStatus_sam_sessions_Page();
 
+    void showLogViewerPage();
     void showSettingsPage();
     void showTunnelsPage();
     void showRestartPage();
@@ -430,6 +437,8 @@ private:
     bool wasSelectingAtStatusMainPage;
     bool showHiddenInfoStatusMainPage;
 
+    LogViewerManager *logViewerManagerPtr;
+
     void showStatusPage(StatusPage newStatusPage);
 #ifndef ANDROID
     void createActions();
@@ -522,13 +531,6 @@ private:
     void appendTunnelForms(std::string tunnelNameToFocus);
     void deleteTunnelForms();
 
-
-    /*
-
-    TODO signaturetype
-
-    */
-
     template<typename Section, typename Type>
     std::string GetI2CPOption (const Section& section, const std::string& name, const Type& value) const
     {
@@ -790,6 +792,8 @@ private:
     };
 
     TunnelsPageUpdateListenerMainWindowImpl tunnelsPageUpdateListener;
+
+    void onLoggingOptionsChange() {}
 };
 
 #endif // MAINWINDOW_H

qt/i2pd_qt/mainwindow.ui

@@ -58,7 +58,7 @@
       <enum>QLayout::SetMaximumSize</enum>
      </property>
      <item>
-      <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,0,0,0,0,0,0">
+      <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,0,0,0,0,0,0,0">
        <property name="sizeConstraint">
         <enum>QLayout::SetMinimumSize</enum>
        </property>
@@ -96,6 +96,13 @@
          </property>
         </widget>
        </item>
+       <item>
+        <widget class="QPushButton" name="logViewerPushButton">
+         <property name="text">
+          <string>Log</string>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QPushButton" name="settingsPagePushButton">
          <property name="enabled">
@@ -596,7 +603,7 @@
           </palette>
          </property>
          <property name="text">
-          <string>TextLabel</string>
+          <string>wrongInputMessageLabel</string>
          </property>
          <property name="wordWrap">
           <bool>true</bool>
@@ -627,7 +634,7 @@
           </size>
          </property>
          <property name="currentIndex">
-          <number>2</number>
+          <number>1</number>
          </property>
          <widget class="QWidget" name="statusPage">
           <property name="sizePolicy">
@@ -671,6 +678,69 @@
            </layout>
           </widget>
          </widget>
+         <widget class="QWidget" name="logViewerPage">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <widget class="QWidget" name="verticalLayoutWidget_4_logViewer">
+           <property name="geometry">
+            <rect>
+             <x>0</x>
+             <y>0</y>
+             <width>711</width>
+             <height>531</height>
+            </rect>
+           </property>
+           <layout class="QVBoxLayout" name="verticalLayout_4_logViewer">
+            <property name="sizeConstraint">
+             <enum>QLayout::SetMinAndMaxSize</enum>
+            </property>
+            <item>
+             <widget class="QLabel" name="logViewerTitleLabel">
+              <property name="font">
+               <font>
+                <pointsize>15</pointsize>
+               </font>
+              </property>
+              <property name="text">
+               <string>Log</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QPlainTextEdit" name="logViewerTextEdit">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="verticalScrollBarPolicy">
+               <enum>Qt::ScrollBarAlwaysOn</enum>
+              </property>
+              <property name="horizontalScrollBarPolicy">
+               <enum>Qt::ScrollBarAsNeeded</enum>
+              </property>
+              <property name="sizeAdjustPolicy">
+               <enum>QAbstractScrollArea::AdjustIgnored</enum>
+              </property>
+              <property name="maximumBlockCount">
+               <number>10000</number>
+              </property>
+              <property name="acceptRichText" stdset="0">
+               <bool>false</bool>
+              </property>
+              <property name="widgetResizable" stdset="0">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </widget>
+         </widget>
          <widget class="QWidget" name="settingsPage">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
@@ -728,8 +798,8 @@
                 <rect>
                  <x>0</x>
                  <y>0</y>
-                 <width>689</width>
-                 <height>496</height>
+                 <width>81</width>
+                 <height>28</height>
                 </rect>
                </property>
                <property name="sizePolicy">