618 lines
22 KiB
C++
Executable File
618 lines
22 KiB
C++
Executable File
#include "systemrestoreproxy.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(SystemRestoreProxy)
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/**
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* @brief 构造函数
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*/
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SystemRestoreProxy::SystemRestoreProxy()
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{
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m_bSuccess = false;
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m_p = nullptr;
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m_bRetainUserData = false;
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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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SystemRestoreProxy::~SystemRestoreProxy()
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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 SystemRestoreProxy::checkEnvEx()
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{
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qDebug() << "SystemRestoreProxy::checkEnvEx invoke begin";
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// 1、检测.user.txt是否存在
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m_userFile = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + PATHS_USER_FILE;
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m_userFile.replace("//", "/");
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if (!Utils::fileExists(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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// 2、检测.exclude.user.txt是否存在
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m_excludeUserFile = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + EXCLUDE_PATHS_USER_FILE;
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m_excludeUserFile.replace("//", "/");
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if (!Utils::fileExists(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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// 3、检测还原点是否存在
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m_backupPath = Utils::getSysRootPath() + 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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// 4、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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m_curUuid = m_backupWrapper.m_uuid;
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emit checkResult(int(BackupResult::CHECK_ENV_SUCCESS));
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qDebug() << "SystemRestoreProxy::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 SystemRestoreProxy::doWorkEx()
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{
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qDebug() << "SystemRestoreProxy::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efi(兼容旧版本的备份)
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if (!restoreEfi()) {
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qCritical("/boot/efi目录同步失败");
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emit checkResult(int(BackupResult::EFI_RSYNC_FAIL));
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return ;
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}
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// 3、还原系统
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restoreSystem();
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qDebug() << "SystemRestoreProxy::doWorkEx invoke end";
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}
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/**
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* @brief 还原efi(兼容旧版本的备份)
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* @return
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*/
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bool SystemRestoreProxy::restoreEfi()
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{
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qDebug() << "SystemRestoreProxy::restoreEfi invoke begin";
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// 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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Utils::remountBoot();
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// 是否有/boot/efi目录
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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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// 1、修复源数据
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repairEfi();
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sync();
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// 2、重新rw读写挂载
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Utils::remountEfi();
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// 3、同步efi
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return rsyncEfi();
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}
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qDebug() << "SystemRestoreProxy::restoreEfi invoke end";
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return true;
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}
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/**
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* @brief 修复efi目录
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*/
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void SystemRestoreProxy::repairEfi()
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{
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QString qsEfiPath = m_backupPath + "/efi";
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if (!Utils::isDirEmpty(qsEfiPath)) {
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// 存在/efi说明是老备份数据，尽量修正老数据
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QStringList args;
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args << "-f";
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args << qsEfiPath;
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QString newPath = m_backupPath + "/boot";
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args << newPath;
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QProcess::execute("mv", args);
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}
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}
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/**
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* @brief 同步efi
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*/
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bool SystemRestoreProxy::rsyncEfi()
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{
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QString efiPath = m_backupPath + "/boot/efi/";
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if (Utils::isDirEmpty(efiPath))
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efiPath = efiPath = m_backupPath + "/efi/";
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if (Utils::isDirEmpty(efiPath))
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return true;
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QStringList args = getRsyncArgs(SystemRestoreScene::EFI_RESTORE);
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QString mountPath = Utils::getSysRootPath() + "/boot/efi/";
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mountPath.replace("//", "/");
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args << efiPath << mountPath;
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m_p = new RsyncPathToDirProcess(this);
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bool result = m_p->start(args);
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delete m_p;
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m_p = nullptr;
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return result;
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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 SystemRestoreProxy::getRsyncArgs(SystemRestoreScene 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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QDir dataDir(m_srcPath + "/data");
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QFile file(m_srcPath + "/etc/uid_list");
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QDir efiDir(m_srcPath + "/boot/efi");
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QStringList excludes;
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switch (scene) {
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case SystemRestoreScene::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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// 云图片作为桌面背景的路径属于用户数据
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args << "--exclude=/var/lib/AccountsService";
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// 域用户相关信息，还原后保持不退域
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args << "--exclude=/etc/sssd";
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args << "--exclude=/var/lib/sss";
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args << "--exclude=/usr/share/sssd";
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args << "--exclude=/etc/ipa";
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args << "--exclude=/etc/krb5.keytab";
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args << "--exclude=/etc/krb5.conf";
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args << "--exclude=/var/lib/ipa-client";
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args << "--exclude=/etc/nsswitch.conf";
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args << "--exclude=/etc/pam.d";
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args << "--exclude=/etc/hosts";
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args << "--exclude=/etc/hostname";
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args << "--exclude=/etc/hedron";
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args << "--exclude=/etc/kcm";
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args << "--exclude=/usr/hedron/hedronagent";
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args << "--exclude=/etc/.kyinfo";
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args << "--exclude=/etc/LICENSE";
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args << "--exclude=/etc/ssl/certs";
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args << "--exclude=/usr/share/ca-certificates";
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args << "--exclude=/etc/NetworkManager";
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args << "--exclude=/var/lib/pam";
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// 安装kylin
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args << "--exclude=/usr/share/applications/kylin-os-installer.desktop";
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args << "--exclude=*/.local/share/applications/kylin-os-installer.desktop";
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args << "--exclude=/etc/xdg/autostart/kylin-os-installer.desktop";
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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 SystemRestoreScene::SYSTEM_RESTORE :
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// 还原工具不还原自身
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if (Utils::getSysRootPath() != CASPER_ROOT_PATH) {
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// 试用模式时可以还原/target下面的备份还原工具
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args << "--exclude=/usr/bin/backup-daemon";
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args << "--exclude=/usr/bin/kybackup";
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}
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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/*/kybackup";
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// 还原后仍然保持激活状态
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args << "--exclude=/etc/LICENSE";
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args << "--exclude=/etc/.kyinfo";
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args << "--exclude=/etc/.kyactivation";
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args << "--exclude=/etc/.kyhwid";
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// 文件安全箱
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args << "--exclude=/data/security-dir";
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// 以前的出厂备份和grub备份没有备份/data，还原时需要判断/data是否存在，如不存在需要屏蔽掉，不然会将主机上的/data删除，造成问题
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// 此为兼容以前备份的老数据而改，等以后老的备份估计不存在了可已去掉
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if (!dataDir.exists()) {
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args << "--exclude=/data";
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}
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if (!file.exists()) {
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args << "--exclude=/etc/uid_list";
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}
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// 为兼容以前的老备份数据，增加下面几行
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if (efiDir.isEmpty()) {
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args << QString("--exclude=/boot/efi");
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}
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// 系统安装后有的会将/data/home /data/root挂载到的/home /root上，实际文件是存放在/data/home /data/root下面
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Utils::excludeFstabBindPath(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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for (const QString& item : excludes) {
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QDir itemDir(m_srcPath + item);
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// 以后统一用/home /root这种路径， 兼容老备份数据（原来的U盘备份，在mksquashfs时排除bind挂载的任意一方时，都备份不上）
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if (item == "/data/home") {
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QDir homeDir(m_srcPath + "/home");
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if (!homeDir.isEmpty()) {
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args << QString("--exclude=/data/home");
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} else if (!itemDir.isEmpty()) {
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args << QString("--exclude=/home");
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} else {
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args << QString("--exclude=/data/home");
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args << QString("--exclude=/home");
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}
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continue;
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} else if (item == "/data/root") {
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QDir homeDir(m_srcPath + "/root");
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if (!homeDir.isEmpty()) {
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args << QString("--exclude=/data/root");
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} else if (!itemDir.isEmpty()) {
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args << QString("--exclude=/root");
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} else {
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args << QString("--exclude=/data/root");
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args << QString("--exclude=/root");
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}
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continue;
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}
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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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case SystemRestoreScene::EFI_RESTORE :
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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 SystemRestoreProxy::restoreSystem()
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{
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// 停止安全初始化服务，以防过高的CPU占有率，因为还原时安全初始化服务会逐个文件打标记，造成cpu占有率超高系统卡顿
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Utils::stopKysecInit();
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// 停止网络服务，以防网络更新
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Utils::stopNetwork();
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// 本地系统备份没有img挂载，故下面两个路径相等
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m_srcPath = m_backupPath;
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QString destPath = Utils::getSysRootPath();
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QStringList args;
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// 自动更新的备份还原时保留用户数据
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if (m_curUuid == AUTO_BACKUP_UUID || m_backupWrapper.m_type == BackupType::RESTORE_SYSTEM_WITH_DATA) {
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args = getRsyncArgs(SystemRestoreScene::RESTORE_SYSTEM_WITH_DATA);
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m_bRetainUserData = true;
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} else {
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args = getRsyncArgs(SystemRestoreScene::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, &SystemRestoreProxy::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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// 华为9a0等机型设定1分钟后关机重启，原因：运行时还原备份还原工具本身可能会造成运行中的备份还原崩溃，从而无法执行到后面的自动重启代码，故在此预设。
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// 不再只华为机型使用此方法，将全部机型都改为此方法，缩短操作链
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// if (Utils::isHuawei990())
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{
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QString msg;
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Utils::executeCMD("shutdown -r +1", msg);
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qDebug() << msg;
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}
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Utils::updateSyncFile();
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Utils::wait(2);
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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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QProcess::execute("sync");
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Utils::wait(20);
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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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if (FACTORY_BACKUP_UUID == m_curUuid && m_backupWrapper.m_type == BackupType::RESTORE_SYSTEM) {
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// 出厂还原有的机器上删除/home/xxx有残留，故在此再强制删除一下，sudo rm -rf命令一遍还删除不了（报错：无法删除/home/xx/.config:目录非空,应该是删除后又自动生成了），多删除几次还不是非常干净，^_^
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removeHome(QString(Utils::getSysRootPath() + "/home").replace("//", "/"));
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removeHome(QString(Utils::getSysRootPath() + "/data/home").replace("//", "/"));
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}
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// 最后，再一次还原home目录以查缺补漏，因为系统还原过程中~/.config等目录中的部分文件可能会更新，会引起部分bug（如任务栏固定图标还原不完整等）
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this->rsyncAgain();
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::sync();
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// 2209后新增了一些依赖，还原到以前的4.0.13版后缺少依赖无法运行，故此最后还得还原backup-daemon和kybackup本身
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// 兼容Qt库从5.12.8升级到5.15，系统还原的最后也将备份还原工具本身还原
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// QString version = Utils::getBackupVersion();
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// if (version.contains("4.0.13"))
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if (Utils::getSysRootPath() != CASPER_ROOT_PATH)
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{
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// initrd.img已经还原为旧状态，需要将新版本的backup-auto-efi等脚本文件更新到initrd.img中，这样我们修改后的新逻辑才能生效
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// QString msg;
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// Utils::executeCMD("update-initramfs -u", msg);
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// qDebug() << msg;
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// 解决bug:182576 【2203自适应升级2309】【2303自适应升级2309】升级成功还原系统失败，应该是有更新包修改了UEFI固件查找引导器文件的引导地址
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// 故系统还原完成后，重新执行下grub-install命令
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QString msg;
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Utils::executeCMD("grub-install", msg);
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qDebug() << msg;
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// 写入标记：rsync_backup_self:${UUID}到文件/etc/file_if_sync中，表示需要还原backup-daemon和kybackup本身
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// QString line("rsync_backup_self:");
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// line += m_curUuid;
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// Utils::syncWriteFile(fileIfSync, line);
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// this->undoRestoreData();
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// 加一层保险（因为有些机型上使用"update-initramfs -u"命令会失败，如：华为9006c的2203版等）
|
||
// QString version = Utils::getBackupVersion();
|
||
// if (Utils::isHuawei990() && version.contains("4.0.13"))
|
||
this->rsyncBackupSelf();
|
||
|
||
::sync();
|
||
}
|
||
|
||
emit this->workResult(result);
|
||
Utils::wait(3);
|
||
reboot(RB_AUTOBOOT);
|
||
} else {
|
||
emit this->workResult(result);
|
||
}
|
||
});
|
||
|
||
m_p->start(args, false);
|
||
}
|
||
|
||
/**
|
||
* @brief 获取备份点里存在家目录的用户列表
|
||
* @param void
|
||
* @return 获取备份点里存在家目录的用户列表
|
||
*/
|
||
QStringList SystemRestoreProxy::getBackupPointUsers()
|
||
{
|
||
// 根据备份点里的/home或/data/home的子目录进行统计
|
||
QString homePath = m_backupPath + "/home";
|
||
homePath.replace("//","/");
|
||
QStringList users = getBackupPointUsers(homePath);
|
||
QString dataHomePath = m_backupPath + "/data/home";
|
||
dataHomePath.replace("//","/");
|
||
users.append(getBackupPointUsers(dataHomePath));
|
||
return users;
|
||
}
|
||
|
||
QStringList SystemRestoreProxy::getBackupPointUsers(const QString& path)
|
||
{
|
||
QDir dir(path);
|
||
if (dir.exists()) {
|
||
return dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs);
|
||
} else {
|
||
return QStringList();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @brief 删除home子目录，此处主要用于删除用户残留信息
|
||
* @param path
|
||
* @return
|
||
*/
|
||
void SystemRestoreProxy::removeHome(const QString& path)
|
||
{
|
||
qDebug() << "SystemRestoreProxy::removeHome invoke begin";
|
||
|
||
QDir dir(path);
|
||
if (dir.exists()) {
|
||
QStringList retainUsers = getBackupPointUsers();
|
||
qDebug() << retainUsers;
|
||
|
||
QString subcmd("rm -rf ");
|
||
QStringList list = dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs);
|
||
for (const QString& item : list) {
|
||
// 出厂备份里面的/home/oem等保留
|
||
if (item == "oem")
|
||
continue ;
|
||
if (retainUsers.contains(item))
|
||
continue ;
|
||
|
||
QString subPath = path;
|
||
subPath += "/";
|
||
subPath += item;
|
||
QDir subDir(subPath);
|
||
subDir.removeRecursively();
|
||
|
||
qDebug() << (subcmd + subPath);
|
||
QProcess::execute(subcmd + subPath);
|
||
}
|
||
|
||
// bool needRm = false;
|
||
// QString subcmd("rm -rf ");
|
||
// QString delDirs;
|
||
// QStringList list = dir.entryList(QDir::NoDotAndDotDot | QDir::Dirs);
|
||
// for (const QString& item : list) {
|
||
// // 出厂备份里面的/home/oem等保留
|
||
// if (item == "oem")
|
||
// continue ;
|
||
// if (retainUsers.contains(item))
|
||
// continue ;
|
||
|
||
// QString subPath = path;
|
||
// subPath += "/";
|
||
// subPath += item;
|
||
// QDir subDir(subPath);
|
||
// subDir.removeRecursively();
|
||
|
||
// delDirs += "${rootmnt}";
|
||
// delDirs += path;
|
||
// delDirs += "/";
|
||
// delDirs += item;
|
||
// delDirs += " ";
|
||
|
||
// needRm = true;
|
||
// }
|
||
|
||
// if (needRm) {
|
||
// QString cmd = QString("bash -c \"%1\" ").arg(subcmd + delDirs);
|
||
// cmd.replace("${rootmnt}", "");
|
||
// QProcess::execute(cmd);
|
||
// }
|
||
}
|
||
|
||
qDebug() << "SystemRestoreProxy::removeHome invoke end";
|
||
}
|
||
|
||
/**
|
||
* @brief 再一次同步
|
||
* @note 意图通过多次同步查缺补漏，如：
|
||
* 1、因为系统还原过程中~/.config等目录中的部分文件可能会更新，会引起部分bug：
|
||
* a. 配网，打开奇安信浏览器，触发自动更新（或者软件商店手动更新），且奇安信默认固定在任务栏；
|
||
* b. 下载安装微信，固定任务栏（新装任意第三方软件均可），会删除desktop文件
|
||
* c. 上面两种操作，都会触发任务栏配置更新；通过监控任务栏配置文件，在系统还原过程中，可以明显的看到，在还原1%的时候，配置文件还原到历史文件，桌面图标还原，然后下一秒配置文件就又更新成当前最新的了
|
||
*/
|
||
void SystemRestoreProxy::rsyncAgain()
|
||
{
|
||
// 保留用户数据还原直接
|
||
if (m_bRetainUserData)
|
||
return ;
|
||
|
||
QString destPath = Utils::getSysRootPath() + "/home/";
|
||
destPath.replace("//", "/");
|
||
Utils::mkpath(destPath);
|
||
|
||
RsyncPathToDirProcess * process = new RsyncPathToDirProcess(this);
|
||
QStringList args;
|
||
args << "-avAHXr";
|
||
args << m_srcPath + "/home/";
|
||
args << destPath;
|
||
process->start(args);
|
||
}
|
||
|
||
/**
|
||
* @brief 未做完的还原，需要在重启后initrd阶段执行备份还原脚本时再进行还原
|
||
* @note 当前只有备份工具自身未还原
|
||
*/
|
||
void SystemRestoreProxy::undoRestoreData()
|
||
{
|
||
QString destPath = Utils::getSysRootPath() + "/var/log/yhkylin-backup-tools/";
|
||
destPath.replace("//", "/");
|
||
Utils::mkpath(destPath);
|
||
|
||
RsyncPathToDirProcess * process = new RsyncPathToDirProcess(this);
|
||
QStringList args;
|
||
args << "-avAHXr";
|
||
args << m_srcPath + "/usr/bin/backup-daemon";
|
||
args << destPath;
|
||
process->start(args);
|
||
|
||
args.clear();
|
||
args << "-avAHXr";
|
||
args << m_srcPath + "/usr/bin/kybackup";
|
||
args << destPath;
|
||
process->start(args);
|
||
}
|
||
|
||
/**
|
||
* @brief 还原备份还原工具自身
|
||
* @note 在undoRestoreData基础上增加的一层保险（因为有些机型上使用"update-initramfs -u"命令会失败，如：华为9006c的2203版等）
|
||
* 本来想在/etc/profile.d/目录或/etc/init.d/目录等下面增加一个.sh脚本文件以开机时自动执行，但试验了几种方式均都未执行，原因未知。
|
||
*/
|
||
void SystemRestoreProxy::rsyncBackupSelf()
|
||
{
|
||
QString destPath = Utils::getSysRootPath() + "/usr/bin/";
|
||
destPath.replace("//", "/");
|
||
Utils::mkpath(destPath);
|
||
|
||
RsyncPathToDirProcess * process = new RsyncPathToDirProcess(this);
|
||
QStringList args;
|
||
args << "-avAHXr";
|
||
args << m_srcPath + "/usr/bin/kybackup";
|
||
args << destPath;
|
||
process->start(args);
|
||
|
||
args.clear();
|
||
args << "-avAHXr";
|
||
args << m_srcPath + "/usr/bin/backup-daemon";
|
||
args << destPath;
|
||
process->start(args);
|
||
}
|