316 lines
9.7 KiB
C++
316 lines
9.7 KiB
C++
#include "customizesystemrestoreproxy.h"
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#include <QDateTime>
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#include <QDir>
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#include <QDebug>
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#include <unistd.h>
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#include <sys/reboot.h>
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#include "../common/utils.h"
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#include "mymountproxy.h"
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IMPLEMENT_DYNCREATE(CustomizeSystemRestoreProxy)
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/**
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* @brief 构造函数
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*/
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CustomizeSystemRestoreProxy::CustomizeSystemRestoreProxy()
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{
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m_bSuccess = false;
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m_p = nullptr;
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}
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/**
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* @brief 析构函数
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*/
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CustomizeSystemRestoreProxy::~CustomizeSystemRestoreProxy()
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{
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delete m_p;
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}
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/**
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* @brief 环境检测
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* @return false,检测失败;true,检测成功
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*/
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bool CustomizeSystemRestoreProxy::checkEnvEx()
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{
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qDebug() << "CustomizeSystemRestoreProxy::checkEnvEx invoke begin";
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// 1、检测xml中的还原点是否还存在
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QString xmlPath = Utils::getSysRootPath() + BACKUP_XML_PATH;
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xmlPath.replace("//", "/");
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ParseBackupList parse(xmlPath);
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m_backupPoint = parse.findBackupPointByUuid(m_backupWrapper.m_uuid);
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if (m_backupPoint.m_uuid.isEmpty()) {
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qCritical("xml中还原点不存在");
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emit checkResult(int(BackupResult::INC_NOT_FOUND_DIR));
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return false;
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}
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// 2、检测.user.txt是否存在
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m_userFile = m_backupPoint.m_path + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + PATHS_USER_FILE;
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m_userFile.replace("//", "/");
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if (!Utils::filsExists(m_userFile)) {
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qCritical(".user.txt文件不存在");
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emit checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
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return false;
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}
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// 3、检测.exclude.user.txt是否存在
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m_excludeUserFile = m_backupPoint.m_path + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + EXCLUDE_PATHS_USER_FILE;
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m_excludeUserFile.replace("//", "/");
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if (!Utils::filsExists(m_excludeUserFile)) {
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qCritical(".exclude.user.txt文件不存在");
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emit checkResult(int(BackupResult::WRITE_EXCLUDE_BACKUP_PATHS_TO_USER_FAILED));
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return false;
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}
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// 4、检测还原点是否存在
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m_backupPath = m_backupPoint.m_path + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/data";
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m_backupPath.replace("//", "/");
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if (Utils::isDirEmpty(m_backupPath)) {
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qCritical("还原点{uuid}/data目录不存在");
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emit checkResult(int(BackupResult::INC_NOT_FOUND_DIR));
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return false;
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}
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m_imgFileName = m_backupPath + "/" + UDISK_MKSQUASHFS_IMG_NAME;
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if (!Utils::filsExists(m_imgFileName)) {
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qCritical("还原点{uuid}/data/dst.img文件不存在");
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emit checkResult(int(BackupResult::INC_NOT_FOUND_DIR));
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return false;
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}
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m_curUuid = m_backupWrapper.m_uuid;
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emit checkResult(int(BackupResult::CHECK_ENV_SUCCESS));
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qDebug() << "CustomizeSystemRestoreProxy::checkEnvEx invoke end";
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return true;
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}
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/**
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* @brief 执行还原逻辑
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*/
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void CustomizeSystemRestoreProxy::doWorkEx()
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{
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qDebug() << "CustomizeSystemRestoreProxy::doWorkEx invoke begin";
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// 1、校验
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if (!checkEnvEx())
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return ;
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// 2、还原系统
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restoreSystem();
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qDebug() << "CustomizeSystemRestoreProxy::doWorkEx invoke end";
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}
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/**
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* @brief 备份准备
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* @return true,准备成功；false，准备失败
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*/
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bool CustomizeSystemRestoreProxy::doPrepare()
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{
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qDebug() << "CustomizeSystemRestoreProxy::doPrepare invoke begin";
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// 1、dst.img文件需要挂载到目录
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if (!mountImg())
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return false;
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// 2、停止安全防护
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QProcess::execute("systemctl stop kysec-init.service");
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// 3、以读写方式重新挂载boot分区，因为有的机器默认以只读挂载
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remountBoot();
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// 4、是否有/boot/efi目录，有则认为有efi分区，需重新rw挂载
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QString efiPath = Utils::getSysRootPath() + "/boot/efi";
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efiPath.replace("//", "/");
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if (!Utils::isDirEmpty(efiPath)) {
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// 重新rw读写挂载
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remountEfi();
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}
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qDebug() << "CustomizeSystemRestoreProxy::doPrepare invoke end";
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return true;
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}
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/**
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* @brief 将dst.img文件挂载到/backup/imgbackup目录
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* @return
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*/
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bool CustomizeSystemRestoreProxy::mountImg()
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{
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// 自定义路径系统备份，需要先将dst.img文件挂载到/backup/imgbackup目录
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// 1、检测目录/backup/imgbackup是否存在，不存在则创建此目录
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QString dstImgMountPath = Utils::getSysRootPath() + BACKUP_IMGBACKUP_PATH;
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dstImgMountPath.replace("//", "/");
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Utils::mkpath(dstImgMountPath);
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// 2、先卸载/backup/imgbackup上的mount
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MountBackupProcess *processMount = new MountBackupProcess(this);
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processMount->umount(dstImgMountPath);
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// 3、将img文件挂载到/backup/imgbackup上
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if (!processMount->mount(m_imgFileName, dstImgMountPath)) {
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emit checkResult(int(BackupResult::RESTOREDIR_PREPARE_FAILED));
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return false;
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}
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m_srcPath = dstImgMountPath;
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return true;
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}
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/**
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* @brief 重新rw读写挂载efi分区
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*/
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void CustomizeSystemRestoreProxy::remountEfi()
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{
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QString mountPath = Utils::getSysRootPath() + "/boot/efi";
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mountPath.replace("//", "/");
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QStringList args;
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args << "-o"
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<< "rw,remount"
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<< mountPath;
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QProcess::execute("mount", args);
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}
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/**
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* @brief 重新rw读写挂载boot分区
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*/
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void CustomizeSystemRestoreProxy::remountBoot()
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{
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QString mountPath = Utils::getSysRootPath() + "/boot";
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mountPath.replace("//", "/");
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QStringList args;
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args << "-o"
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<< "rw,remount"
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<< mountPath;
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QProcess::execute("mount", args);
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}
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/**
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* @brief 根据场景获取rsync命令参数
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* @param scene，场景
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* @return 组装好的rsync的参数信息
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*/
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QStringList CustomizeSystemRestoreProxy::getRsyncArgs(CustomizeSystemRestoreScene scene)
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{
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QStringList args;
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args << "-avAHXr";
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args << "--info=progress2";
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args << "--no-inc-recursive";
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args << "--ignore-missing-args";
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args << "--delete";
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QStringList excludes;
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// 自定义备份的路径也需要跳过，不进行还原
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Utils::excludeCustomizePath(excludes);
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switch (scene) {
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case CustomizeSystemRestoreScene::RESTORE_SYSTEM_WITH_DATA :
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args << "--exclude=/home";
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args << "--exclude=/root";
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if (Utils::isHuawei990()) {
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args << "--exclude=/data";
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} else {
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args << "--exclude=/data/usershare";
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}
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// 保留指纹数据，用户密码、角色、权限、生物识别等信息不需要改变
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args << "--exclude=/var/lib/biometric-auth";
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args << "--exclude=/data/sec_storage_data";
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args << "--exclude=/etc/passwd";
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args << "--exclude=/etc/shadow";
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args << "--exclude=/etc/group";
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args << "--exclude=/etc/gshadow";
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args << "--exclude=/etc/sudoers";
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args << "--exclude=/data/home";
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args << "--exclude=/data/root";
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// 云桌面背景路径属于用户数据
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args << "--exclude=/var/lib/AccountsService";
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// 此处不要break，因为还需要排除SYSTEM_RESTORE中的项
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case CustomizeSystemRestoreScene::SYSTEM_RESTORE :
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// 还原工具不还原自身
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args << "--exclude=/usr/bin/backup-daemon";
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args << "--exclude=/usr/bin/kybackup";
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args << "--exclude=/usr/bin/mount_fstab_efi";
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args << "--exclude=/usr/bin/backup-auto-efi";
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args << "--exclude=/usr/bin/backup-auto";
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args << "--exclude=/usr/bin/rsync";
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args << "--exclude=/usr/share/rsync";
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args << "--exclude=/usr/share/initramfs-tools/hooks/kybackup-hooks";
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args << "--exclude=/usr/share/initramfs-tools/scripts/local-bottom/kybackup";
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for (const QString& item : excludes) {
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args << QString("--exclude=") + item;
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}
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args << "--exclude-from" << m_excludeUserFile;
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args << "--files-from" << m_userFile;
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break ;
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default:
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return args;
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}
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return args;
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}
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/**
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* @brief 系统还原
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*/
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void CustomizeSystemRestoreProxy::restoreSystem()
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{
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// 还原前准备
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doPrepare();
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QString destPath = Utils::getSysRootPath();
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QStringList args;
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// 保留用户数据还原
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if ( m_backupWrapper.m_type == BackupType::RESTORE_SYSTEM_WITH_DATA) {
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args = getRsyncArgs(CustomizeSystemRestoreScene::RESTORE_SYSTEM_WITH_DATA);
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} else {
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args = getRsyncArgs(CustomizeSystemRestoreScene::SYSTEM_RESTORE);
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}
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args << m_srcPath + "/";
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destPath += "/";
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destPath.replace("//", "/");
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args << destPath;
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m_p = new RsyncPathToDirProcess(this);
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connect(m_p, &RsyncPathToDirProcess::progress, this, &CustomizeSystemRestoreProxy::progress);
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connect(m_p, &RsyncPathToDirProcess::finished, this, [&](bool result) {
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if (result) {
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QString time = QDateTime::currentDateTime().toString("yy-MM-dd hh:mm:ss");
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// Utils::writeBackupLog(time + "," + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ",,," + QString::number(m_backupWrapper.m_frontUid));
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Utils::writeBackupLog(time + "," + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ",,,," + m_backupPoint.m_backupName);
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Utils::updateSyncFile();
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QString fileIfSync = Utils::getSysRootPath() + FILE_IF_SYNC;
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fileIfSync.replace("//", "/");
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QFileInfo file(fileIfSync);
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QDateTime beginTime = file.fileTime(QFileDevice::FileModificationTime);
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Utils::wait(10);
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Utils::updateSyncFile();
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while (1) {
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Utils::wait(2);
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QFileInfo file1(fileIfSync);
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QDateTime UpdateTime = file1.fileTime(QFileDevice::FileModificationTime);
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if (UpdateTime > beginTime)
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break;
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}
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emit this->workResult(result);
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Utils::wait(2);
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reboot(RB_AUTOBOOT);
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}
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emit this->workResult(result);
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});
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m_p->start(args, false);
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}
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