openkylin
/
yhkylin-backup-tools
mirror of https://gitee.com/openkylin/yhkylin-backup-tools.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
yhkylin-backup-tools/backup-daemon/systemrestoreproxy.cpp

426 lines
14 KiB
C++
Raw Normal View History

阶段性提交
2021-12-09 10:00:07 +08:00
#include "systemrestoreproxy.h"
#include <QDateTime>
#include <QDir>
#include <QDebug>
#include <unistd.h>
#include <sys/reboot.h>
#include "../common/utils.h"
#include "mymountproxy.h"
IMPLEMENT_DYNCREATE(SystemRestoreProxy)
/**
* @brief 构造函数
*/
SystemRestoreProxy::SystemRestoreProxy()
{
m_bSuccess = false;
m_p = nullptr;
}
/**
* @brief 析构函数
*/
SystemRestoreProxy::~SystemRestoreProxy()
{
delete m_p;
}
/**
* @brief 环境检测
* @return false,检测失败;true,检测成功
*/
bool SystemRestoreProxy::checkEnvEx()
{
qDebug() << "SystemRestoreProxy::checkEnvEx invoke begin";
// 1、检测.user.txt是否存在
m_userFile = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + PATHS_USER_FILE;
m_userFile.replace("//", "/");
if (!Utils::filsExists(m_userFile)) {
qCritical(".user.txt文件不存在");
emit checkResult(int(BackupResult::WRITE_BACKUP_PATHS_TO_USER_FAILED));
return false;
}
// 2、检测.exclude.user.txt是否存在
m_excludeUserFile = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/" + EXCLUDE_PATHS_USER_FILE;
m_excludeUserFile.replace("//", "/");
if (!Utils::filsExists(m_excludeUserFile)) {
qCritical(".exclude.user.txt文件不存在");
emit checkResult(int(BackupResult::WRITE_EXCLUDE_BACKUP_PATHS_TO_USER_FAILED));
return false;
}
// 3、检测还原点是否存在
m_backupPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/data";
m_backupPath.replace("//", "/");
if (Utils::isDirEmpty(m_backupPath)) {
qCritical("还原点{uuid}/data目录不存在");
emit checkResult(int(BackupResult::INC_NOT_FOUND_DIR));
return false;
}
日志界面的备份名称优化
2022-03-09 10:27:29 +08:00
// 4、检测xml中的还原点是否还存在
QString xmlPath = Utils::getSysRootPath() + BACKUP_XML_PATH;
xmlPath.replace("//", "/");
ParseBackupList parse(xmlPath);
m_backupPoint = parse.findBackupPointByUuid(m_backupWrapper.m_uuid);
if (m_backupPoint.m_uuid.isEmpty()) {
qCritical("xml中还原点不存在");
emit checkResult(int(BackupResult::INC_NOT_FOUND_DIR));
return false;
}
问题修复
2022-01-24 15:45:07 +08:00
m_curUuid = m_backupWrapper.m_uuid;
优化
2021-12-11 15:10:58 +08:00
emit checkResult(int(BackupResult::CHECK_ENV_SUCCESS));
阶段性提交
2021-12-09 10:00:07 +08:00
qDebug() << "SystemRestoreProxy::checkEnvEx invoke end";
return true;
}
/**
* @brief 执行还原逻辑
*/
void SystemRestoreProxy::doWorkEx()
{
qDebug() << "SystemRestoreProxy::doWorkEx invoke begin";
// 1、校验
if (!checkEnvEx())
return ;
// 2、还原efi(兼容旧版本的备份)
if (!restoreEfi()) {
qCritical("/boot/efi目录同步失败");
emit checkResult(int(BackupResult::EFI_RSYNC_FAIL));
return ;
}
// 3、还原系统
restoreSystem();
qDebug() << "SystemRestoreProxy::doWorkEx invoke end";
}
/**
* @brief 还原efi(兼容旧版本的备份)
* @return
*/
bool SystemRestoreProxy::restoreEfi()
{
qDebug() << "SystemRestoreProxy::restoreEfi invoke begin";
// 是否有/boot/efi目录
QString efiPath = Utils::getSysRootPath() + "/boot/efi";
efiPath.replace("//", "/");
if (!Utils::isDirEmpty(efiPath)) {
// 1、修复源数据
repairEfi();
// 2、重新rw读写挂载
remountEfi();
// 3、同步efi
return rsyncEfi();
}
qDebug() << "SystemRestoreProxy::restoreEfi invoke end";
return true;
}
/**
* @brief 修复efi目录
*/
void SystemRestoreProxy::repairEfi()
{
QString qsEfiPath = m_backupPath + "/efi";
if (!Utils::isDirEmpty(qsEfiPath)) {
// 存在/efi说明是老备份数据，尽量修正老数据
QStringList args;
args << "-f";
args << qsEfiPath;
QString newPath = m_backupPath + "/boot";
args << newPath;
QProcess::execute("mv", args);
}
}
/**
* @brief 重新rw读写挂载efi分区
*/
void SystemRestoreProxy::remountEfi()
{
QString mountPath = Utils::getSysRootPath() + "/boot/efi";
mountPath.replace("//", "/");
QStringList args;
args << "-o"
<< "rw,remount"
<< mountPath;
QProcess::execute("mount", args);
}
阶段提交
2021-12-11 09:49:09 +08:00
/**
* @brief 重新rw读写挂载boot分区
*/
void SystemRestoreProxy::remountBoot()
{
QString mountPath = Utils::getSysRootPath() + "/boot";
mountPath.replace("//", "/");
QStringList args;
args << "-o"
<< "rw,remount"
<< mountPath;
QProcess::execute("mount", args);
}
阶段性提交
2021-12-09 10:00:07 +08:00
/**
* @brief 同步efi
*/
bool SystemRestoreProxy::rsyncEfi()
{
QString efiPath = m_backupPath + "/boot/efi/";
if (Utils::isDirEmpty(efiPath))
efiPath = efiPath = m_backupPath + "/efi/";
if (Utils::isDirEmpty(efiPath))
return true;
QStringList args = getRsyncArgs(SystemRestoreScene::EFI_RESTORE);
QString mountPath = Utils::getSysRootPath() + "/boot/efi/";
mountPath.replace("//", "/");
args << efiPath << mountPath;
m_p = new RsyncPathToDirProcess(this);
bool result = m_p->start(args);
delete m_p;
m_p = nullptr;
return result;
}
/**
* @brief 根据场景获取rsync命令参数
* @param scene，场景
* @return 组装好的rsync的参数信息
*/
QStringList SystemRestoreProxy::getRsyncArgs(SystemRestoreScene scene)
{
QStringList args;
args << "-avAHXr";
args << "--info=progress2";
args << "--no-inc-recursive";
args << "--ignore-missing-args";
args << "--delete";
QDir dataDir(m_srcPath + "/data");
QFile file(m_srcPath + "/etc/uid_list");
QDir efiDir(m_srcPath + "/boot/efi");
QStringList excludes;
switch (scene) {
case SystemRestoreScene::RESTORE_SYSTEM_WITH_DATA :
args << "--exclude=/home";
args << "--exclude=/root";
if (Utils::isHuawei990()) {
args << "--exclude=/data";
} else {
args << "--exclude=/data/usershare";
}
// 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
args << "--exclude=/var/lib/biometric-auth";
args << "--exclude=/data/sec_storage_data";
args << "--exclude=/etc/passwd";
args << "--exclude=/etc/shadow";
args << "--exclude=/etc/group";
args << "--exclude=/etc/gshadow";
args << "--exclude=/etc/sudoers";
args << "--exclude=/data/home";
args << "--exclude=/data/root";
无备份分区时，需要可以备份到U盘，故改造备份到U盘的逻辑
2022-07-14 09:34:07 +08:00
// 云图片作为桌面背景的路径属于用户数据
U盘还原支持保留用户数据
2022-01-25 16:15:41 +08:00
args << "--exclude=/var/lib/AccountsService";
阶段性提交
2021-12-09 10:00:07 +08:00
// 此处不要break，因为还需要排除SYSTEM_RESTORE中的项
case SystemRestoreScene::SYSTEM_RESTORE :
// 还原工具不还原自身
args << "--exclude=/usr/bin/backup-daemon";
args << "--exclude=/usr/bin/kybackup";
args << "--exclude=/usr/bin/mount_fstab_efi";
args << "--exclude=/usr/bin/backup-auto-efi";
args << "--exclude=/usr/bin/backup-auto";
args << "--exclude=/usr/bin/rsync";
args << "--exclude=/usr/share/rsync";
args << "--exclude=/usr/share/initramfs-tools/hooks/kybackup-hooks";
args << "--exclude=/usr/share/initramfs-tools/scripts/local-bottom/kybackup";
// 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
// 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
if (!dataDir.exists()) {
args << "--exclude=/data";
}
if (!file.exists()) {
args << "--exclude=/etc/uid_list";
}
// 为兼容以前的老备份数据，增加下面几行
if (efiDir.isEmpty()) {
args << QString("--exclude=/boot/efi");
}
// 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
Utils::excludeFstabBindPath(excludes);
10237 【备份还原】增加可自定义路径
2022-04-26 16:06:54 +08:00
// 自定义备份的路径也需要跳过，不进行还原
Utils::excludeCustomizePath(excludes);
阶段性提交
2021-12-09 10:00:07 +08:00
for (const QString& item : excludes) {
QDir itemDir(m_srcPath + item);
// 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）
if (item == "/data/home") {
QDir homeDir(m_srcPath + "/home");
if (!homeDir.isEmpty()) {
args << QString("--exclude=/data/home");
} else if (!itemDir.isEmpty()) {
args << QString("--exclude=/home");
} else {
args << QString("--exclude=/data/home");
args << QString("--exclude=/home");
}
continue;
} else if (item == "/data/root") {
QDir homeDir(m_srcPath + "/root");
if (!homeDir.isEmpty()) {
args << QString("--exclude=/data/root");
} else if (!itemDir.isEmpty()) {
args << QString("--exclude=/root");
} else {
args << QString("--exclude=/data/root");
args << QString("--exclude=/root");
}
continue;
}
args << QString("--exclude=") + item;
}
args << "--exclude-from" << m_excludeUserFile;
args << "--files-from" << m_userFile;
break ;
case SystemRestoreScene::EFI_RESTORE :
break ;
default:
return args;
}
return args;
}
/**
* @brief 系统还原
*/
void SystemRestoreProxy::restoreSystem()
{
安全优化
2022-04-02 16:41:27 +08:00
// 停止安全防护
QProcess::execute("systemctl stop kysec-init.service");
微调
2022-02-16 14:52:11 +08:00
阶段性提交
2021-12-09 10:00:07 +08:00
// 本地系统备份没有img挂载，故下面两个路径相等
m_srcPath = m_backupPath;
QString destPath = Utils::getSysRootPath();
阶段提交
2021-12-11 09:49:09 +08:00
// 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
remountBoot();
阶段性提交
2021-12-09 10:00:07 +08:00
QStringList args;
// 自动更新的备份还原时保留用户数据
if (m_curUuid == AUTO_BACKUP_UUID || m_backupWrapper.m_type == BackupType::RESTORE_SYSTEM_WITH_DATA) {
args = getRsyncArgs(SystemRestoreScene::RESTORE_SYSTEM_WITH_DATA);
} else {
args = getRsyncArgs(SystemRestoreScene::SYSTEM_RESTORE);
}
args << m_srcPath + "/";
操作日志
2021-12-30 10:27:03 +08:00
destPath += "/";
destPath.replace("//", "/");
args << destPath;
阶段性提交
2021-12-09 10:00:07 +08:00
m_p = new RsyncPathToDirProcess(this);
connect(m_p, &RsyncPathToDirProcess::progress, this, &SystemRestoreProxy::progress);
connect(m_p, &RsyncPathToDirProcess::finished, this, [&](bool result) {
if (result) {
QString time = QDateTime::currentDateTime().toString("yy-MM-dd hh:mm:ss");
优化
2021-12-11 15:10:58 +08:00
// Utils::writeBackupLog(time + "," + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ",,," + QString::number(m_backupWrapper.m_frontUid));
日志界面的备份名称优化
2022-03-09 10:27:29 +08:00
Utils::writeBackupLog(time + "," + m_curUuid + "," + QString::number(m_backupWrapper.m_type) + ",,,," + m_backupPoint.m_backupName);
阶段性提交
2021-12-09 10:00:07 +08:00
Utils::updateSyncFile();
优化
2022-07-13 10:53:36 +08:00
Utils::wait(2);
阶段性提交
2021-12-09 10:00:07 +08:00
QString fileIfSync = Utils::getSysRootPath() + FILE_IF_SYNC;
fileIfSync.replace("//", "/");
QFileInfo file(fileIfSync);
QDateTime beginTime = file.fileTime(QFileDevice::FileModificationTime);
出厂还原不再清理/home下的残留
2022-05-11 14:29:41 +08:00
// if (Utils::isHuawei990() && FACTORY_BACKUP_UUID == m_curUuid && m_backupWrapper.m_type == BackupType::RESTORE_SYSTEM) {
// // 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，^_^
// removeHome(Utils::getSysRootPath() + "/home");
// removeHome(Utils::getSysRootPath() + "/data/home");
// }
阶段性提交
2021-12-09 10:00:07 +08:00
Utils::wait(10);
Utils::updateSyncFile();
while (1) {
Utils::wait(2);
QFileInfo file1(fileIfSync);
QDateTime UpdateTime = file1.fileTime(QFileDevice::FileModificationTime);
if (UpdateTime > beginTime)
break;
}
emit this->workResult(result);
Utils::wait(2);
reboot(RB_AUTOBOOT);
}
emit this->workResult(result);
});
m_p->start(args, false);
}
/**
* @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)
{
QDir dir(path);
if (dir.exists()) {
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保留
if (item == "oem")
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);
}
}
}