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// SPDX-FileCopyrightText: 2019 - 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef LOGVIEWERSERVICE_H
#define LOGVIEWERSERVICE_H
#include <dgiomount.h>
#include <QObject>
#include <QDBusContext>
#include <QScopedPointer>
#include <QProcess>
#include <QTemporaryDir>
#include <QDBusUnixFileDescriptor>
class QTextStream;
class DGioVolumeManager;
class LogViewerService : public QObject
, protected QDBusContext
{
Q_OBJECT
Q_CLASSINFO("D-Bus Interface", "com.deepin.logviewer")
public:
explicit LogViewerService(QObject *parent = nullptr);
~LogViewerService();
Q_SIGNALS:
public Q_SLOTS:
Q_SCRIPTABLE QString readLog(const QDBusUnixFileDescriptor &fd);
// 获取指定行数范围的日志内容
Q_SCRIPTABLE QStringList readLogLinesInRange(const QDBusUnixFileDescriptor &fd, qint64 startLine, qint64 lineCount, bool bReverse);
Q_SCRIPTABLE int exitCode();
Q_SCRIPTABLE void quit();
Q_SCRIPTABLE QStringList getFileInfo(const QString &file, bool unzip = true);
Q_SCRIPTABLE QStringList getOtherFileInfo(const QString &file, bool unzip = true);
Q_SCRIPTABLE bool exportLog(const QString &outDir, const QString &in, bool isFile);
Q_SCRIPTABLE QString openLogStream(const QString &filePath);
Q_SCRIPTABLE QString readLogInStream(const QString &token);
Q_SCRIPTABLE QString isFileExist(const QString &filePath);
Q_SCRIPTABLE quint64 getFileSize(const QString &filePath);
Q_SCRIPTABLE qint64 getLineCount(const QString &filePath);
// 仅能执行特定合法命令
Q_SCRIPTABLE QString executeCmd(const QString &cmd);
Q_SCRIPTABLE QStringList whiteListOutPaths();
public:
// 获取用户家目录
QStringList getHomePaths();
// 获取外设挂载路径(包括smb路径)
QStringList getExternalDevPaths();
QList<QExplicitlySharedDataPointer<DGioMount>> getMounts_safe();
private:
QString readLog(const QString &filePath);
Q_SCRIPTABLE QStringList readLogLinesInRange(const QString &filePath, qint64 startLine, qint64 lineCount, bool bReverse);
// 清理临时目录下一些缓存文件，如解压后dump文件等（前端可能没权限删除，因此统一放到后端清理）
void clearTempFiles();
// 通过缓存块方式快速定位到指定行行首
qint64 findLineStartOffsetWithCaching(const QString &filePath, qint64 targetLine);
qint64 readFileAndReturnIndex(const QString &filePath, qint64 startLine, QList<uint64_t>& lineIndexes, bool reverseOrder);
private:
bool checkAuthorization(const QString &actionId, qint64 applicationPid);
private:
QTemporaryDir tmpDir;
QProcess m_process;
QString m_tmpDirPath;
QString m_actionId;
QMap<QString, QString> m_commands;
QMap<QString, std::pair<QString, QTextStream*>> m_logMap;
QMap<QString, QList<uint64_t>> m_logLineIndex;
/**
* @brief isValidInvoker 检验调研者是否是日志
* @return
*/
bool isValidInvoker(bool checkAuth = false);
bool checkAuth(const QString &actionId);
QByteArray processCatFile(const QString &filePath);
void processCmdArgs(const QString &cmdStr, const QStringList &args);
};
#endif // LOGVIEWERSERVICE_H
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