deskflow/src/lib/gui/Logger.cpp

119 lines
2.7 KiB
C++

/*
* Deskflow -- mouse and keyboard sharing utility
* SPDX-FileCopyrightText: (C) 2024 Symless Ltd.
* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
*/
#include "Logger.h"
#include "StringUtils.h"
#include <QDateTime>
#include <QDir>
#include <QMessageBox>
#include <QTime>
#if defined(Q_OS_WIN)
#include <Windows.h>
#endif
namespace deskflow::gui {
const auto kForceDebugMessages = QStringList{
"No functional TLS backend was found", "No TLS backend is available",
"QSslSocket::connectToHostEncrypted: TLS initialization failed", "Retrying to obtain clipboard.",
"Unable to obtain clipboard."
};
Logger Logger::s_instance;
QString printLine(FILE *out, const QString &type, const QString &message, const QString &fileLine = "")
{
auto datetime = QDateTime::currentDateTime().toString("yyyy-MM-ddTHH:mm:ss");
auto logLine = QString("[%1] %2: %3").arg(datetime, type, message);
QTextStream stream(&logLine);
stream << Qt::endl;
if (!fileLine.isEmpty()) {
stream << "\t" + fileLine << Qt::endl;
}
auto logLineBytes = logLine.toUtf8();
auto logLine_c = logLineBytes.constData();
#if defined(Q_OS_WIN)
// Debug output is viewable using either VS Code, Visual Studio, DebugView, or
// DbgView++ (only one can be used at once). It's important to send output to
// the debug output API, because it's difficult to view stdout and stderr from
// a Windows GUI app.
OutputDebugStringA(logLine_c);
#else
fprintf(out, "%s", logLine_c);
fflush(out);
#endif
return logLine;
}
void Logger::loadEnvVars()
{
const auto debugEnvVar = qEnvironmentVariable("DESKFLOW_GUI_DEBUG");
if (!debugEnvVar.isEmpty()) {
m_debug = strToTrue(debugEnvVar);
}
const auto verboseEnvVar = qEnvironmentVariable("DESKFLOW_GUI_VERBOSE");
if (!verboseEnvVar.isEmpty()) {
m_verbose = strToTrue(verboseEnvVar);
}
}
void Logger::logVerbose(const QString &message) const
{
if (m_verbose) {
printLine(stdout, "VERBOSE", message);
}
}
void Logger::handleMessage(const QtMsgType type, const QString &fileLine, const QString &message)
{
auto mutatedType = type;
if (kForceDebugMessages.contains(message)) {
mutatedType = QtDebugMsg;
}
QString typeString;
auto out = stdout;
switch (mutatedType) {
case QtDebugMsg:
typeString = "DEBUG";
if (!m_debug) {
return;
}
break;
case QtInfoMsg:
typeString = "INFO";
break;
case QtWarningMsg:
typeString = "WARNING";
out = stderr;
break;
case QtCriticalMsg:
typeString = "CRITICAL";
out = stderr;
break;
case QtFatalMsg:
typeString = "FATAL";
out = stderr;
break;
}
const auto logLine = printLine(out, typeString, message, fileLine);
Q_EMIT newLine(logLine);
}
} // namespace deskflow::gui