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/*
* Copyright (C) 2007 Alon Bar-Lev <alon.barlev@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
*/
#include <QFile>
#include <QTextStream>
#include <QtCrypto>
#include <QtPlugin>
#include <qcaprovider.h>
#include <cstdlib>
using namespace QCA;
namespace loggerQCAPlugin {
class StreamLogger : public QCA::AbstractLogDevice
{
Q_OBJECT
public:
StreamLogger(QTextStream &stream)
: QCA::AbstractLogDevice(QStringLiteral("Stream logger"))
, _stream(stream)
{
QCA::logger()->registerLogDevice(this);
}
~StreamLogger() override
{
QCA::logger()->unregisterLogDevice(name());
}
void logTextMessage(const QString &message, enum QCA::Logger::Severity severity) override
{
_stream << now() << " " << severityName(severity) << " " << message << Qt::endl;
}
void logBinaryMessage(const QByteArray &blob, enum QCA::Logger::Severity severity) override
{
Q_UNUSED(blob);
_stream << now() << " " << severityName(severity) << " "
<< "Binary blob not implemented yet" << Qt::endl;
}
private:
inline const char *severityName(enum QCA::Logger::Severity severity)
{
if (severity <= QCA::Logger::Debug) {
return s_severityNames[severity];
} else {
return s_severityNames[QCA::Logger::Debug + 1];
}
}
inline QString now()
{
static const QString format = QStringLiteral("yyyy-MM-dd hh:mm:ss");
return QDateTime::currentDateTime().toString(format);
}
private:
static const char *s_severityNames[];
QTextStream &_stream;
};
const char *StreamLogger::s_severityNames[] = {"Q", "M", "A", "C", "E", "W", "N", "I", "D", "U"};
}
using namespace loggerQCAPlugin;
class loggerProvider : public Provider
{
private:
QFile _logFile;
QTextStream _logStream;
StreamLogger *_streamLogger;
bool _externalConfig;
public:
loggerProvider()
{
_externalConfig = false;
_streamLogger = nullptr;
const QByteArray level = qgetenv("QCALOGGER_LEVEL");
const QByteArray file = qgetenv("QCALOGGER_FILE");
if (!level.isEmpty()) {
printf("XXXX %s %s\n", level.data(), file.data());
_externalConfig = true;
createLogger(atoi(level.constData()), file.isEmpty() ? QString() : QString::fromUtf8(file));
}
}
~loggerProvider() override
{
delete _streamLogger;
_streamLogger = nullptr;
}
public:
int qcaVersion() const override
{
return QCA_VERSION;
}
void init() override
{
}
QString name() const override
{
return QStringLiteral("qca-logger");
}
QStringList features() const override
{
QStringList list;
list += QStringLiteral("log");
return list;
}
Context *createContext(const QString &type) override
{
Q_UNUSED(type);
return nullptr;
}
QVariantMap defaultConfig() const override
{
QVariantMap mytemplate;
mytemplate[QStringLiteral("formtype")] = QStringLiteral("http://affinix.com/qca/forms/qca-logger#1.0");
mytemplate[QStringLiteral("enabled")] = false;
mytemplate[QStringLiteral("file")] = QLatin1String("");
mytemplate[QStringLiteral("level")] = (int)Logger::Quiet;
return mytemplate;
}
void configChanged(const QVariantMap &config) override
{
if (!_externalConfig) {
delete _streamLogger;
_streamLogger = nullptr;
if (config[QStringLiteral("enabled")].toBool()) {
createLogger(config[QStringLiteral("level")].toInt(), config[QStringLiteral("file")].toString());
}
}
}
private:
void createLogger(const int level, const QString &file)
{
bool success = false;
if (file.isEmpty()) {
success = _logFile.open(stderr, QIODevice::WriteOnly | QIODevice::Text | QIODevice::Unbuffered);
} else {
_logFile.setFileName(file);
success = _logFile.open(QIODevice::Append | QIODevice::Text | QIODevice::Unbuffered);
}
if (success) {
_logStream.setDevice(&_logFile);
logger()->setLevel((Logger::Severity)level);
_streamLogger = new StreamLogger(_logStream);
}
}
};
class loggerPlugin : public QObject, public QCAPlugin
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "com.affinix.qca.Plugin/1.0")
Q_INTERFACES(QCAPlugin)
public:
Provider *createProvider() override
{
return new loggerProvider;
}
};
#include "qca-logger.moc"
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