Refactoring

client/debug.cpp

@@ -0,0 +1,126 @@
+#include "debug.h"
+
+#include <QDir>
+#include <QStandardPaths>
+#include <QDebug>
+#include <QCoreApplication>
+#include <QDateTime>
+
+#define LOGS_DIR "logs"
+#define CLIENT_LOG_SUFFIX "amneziavpn.log"
+#define MAX_LOG_FILES 5
+#define FORMAT_STRING "yyyy-MM-dd--hh-mm-ss"
+
+QFile Debug::m_clientLog;
+QTextStream Debug::m_clientLogTextStream;
+QString Debug::m_clientLogName;
+
+void debugMessageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
+{
+    // Skip Qt warnings
+    if (msg.contains("known incorrect sRGB profile")) return;
+    if (msg.contains("libpng warning")) return;
+    if (msg.contains("Unknown property ffont")) return;
+
+    Debug::m_clientLogTextStream << qFormatLogMessage(type, context, msg) << endl << flush;
+}
+
+bool Debug::init()
+{
+    QString path = qApp->applicationDirPath();
+    QDir appDir(path);
+
+    // init function is called before exec application, so data location folder may not exist
+    if (!appDir.exists())
+    {
+        qWarning() << "Debug: init: log directory doesn't exist or mkpath command error:" << path;
+        return false;
+    }
+
+    if (!appDir.exists(LOGS_DIR) && !appDir.mkdir(LOGS_DIR))
+    {
+        qWarning() << "Debug: init: log directory doesn't exist or mkdir command error:" << path << LOGS_DIR;
+        return false;
+    }
+
+    if (!appDir.cd(LOGS_DIR))
+    {
+        qWarning() << "Debug: init: cd command error:" << path << LOGS_DIR;
+        return false;
+    }
+
+    //delete older log files
+    auto clientLogsCount = 0;
+    QFileInfoList logDirList = appDir.entryInfoList(
+                QDir::Files | QDir::NoDotAndDotDot,
+                QDir::Time);
+    for (auto fileInfo : logDirList)
+    {
+        if ((fileInfo.completeSuffix() == CLIENT_LOG_SUFFIX &&
+                ++clientLogsCount > MAX_LOG_FILES))
+        {
+            appDir.remove(fileInfo.filePath());
+        }
+    }
+
+    //prepare log file names
+    auto currentDateTime = QDateTime::currentDateTime().toString(FORMAT_STRING);
+
+    m_clientLogName = QString("%1.%2").arg(currentDateTime).arg(CLIENT_LOG_SUFFIX);
+    return init(appDir);
+}
+
+bool Debug::init(QDir& appDir)
+{
+    Q_UNUSED(appDir)
+    qSetMessagePattern("[%{time}|%{type}] %{message}");
+
+#ifndef QT_DEBUG
+    m_clientLog.setFileName(appDir.filePath(m_clientLogName));
+    if (!m_clientLog.open(QIODevice::WriteOnly | QIODevice::Append)) {
+        qWarning() << "Debug::init - failed to open m_clientLog file:" << m_clientLogName;
+        return false;
+    }
+    m_clientLog.setTextModeEnabled(true);
+    m_clientLogTextStream.setDevice(&m_clientLog);
+    qInstallMessageHandler(debugMessageHandler);
+#else
+#ifdef DEBUG_OUTPUT_TWO_DIRECTIONAL
+    m_clientLog.setFileName(appDir.filePath(m_clientLogName));
+    if (!m_clientLog.open(QIODevice::WriteOnly | QIODevice::Append))
+        return false;
+    m_clientLog.setTextModeEnabled(true);
+    m_clientLogTextStream.setDevice(&m_clientLog);
+    defaultMessageHandler = qInstallMessageHandler(debugMessageHandler);
+#endif
+#endif
+
+    return true;
+}
+
+QString Debug::getPathToClientLog()
+{
+    QString path = qApp->applicationDirPath();
+    QDir appDir(path);
+    if (!appDir.exists(LOGS_DIR) || !appDir.cd(LOGS_DIR))
+    {
+        qWarning() << "Debug: log directory doesn't exist or cd command error:" << path;
+        return "";
+    }
+
+    return appDir.filePath(m_clientLogName);
+}
+
+QString Debug::getPathToLogsDir()
+{
+    QString path = qApp->applicationDirPath();
+    QDir appDir(path);
+    if (!appDir.exists(LOGS_DIR) || !appDir.cd(LOGS_DIR))
+    {
+        qWarning() << "Debug: log directory doesn't exist or cd command error" << path;
+        return "";
+    }
+    return appDir.absolutePath();
+}
+
+