mirror of
https://github.com/tickstep/aliyunpan.git
synced 2025-01-24 06:52:16 +08:00
487 lines
12 KiB
Go
487 lines
12 KiB
Go
package syncdrive
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import (
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"context"
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"fmt"
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"github.com/tickstep/aliyunpan-api/aliyunpan"
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"github.com/tickstep/aliyunpan/internal/utils"
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"github.com/tickstep/aliyunpan/internal/waitgroup"
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"github.com/tickstep/aliyunpan/library/collection"
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"github.com/tickstep/library-go/logger"
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"io/ioutil"
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"os"
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"path"
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"strings"
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"time"
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)
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type (
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SyncMode string
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// SyncTask 同步任务
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SyncTask struct {
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// Name 任务名称
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Name string `json:"name"`
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// Id 任务ID
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Id string `json:"id"`
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// DriveId 网盘ID，目前支持文件网盘
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DriveId string `json:"-"`
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// LocalFolderPath 本地目录
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LocalFolderPath string `json:"localFolderPath"`
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// PanFolderPath 云盘目录
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PanFolderPath string `json:"panFolderPath"`
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// Mode 同步模式
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Mode SyncMode `json:"mode"`
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// LastSyncTime 上一次同步时间
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LastSyncTime string `json:"lastSyncTime"`
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syncDbFolderPath string
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localFileDb LocalSyncDb
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panFileDb PanSyncDb
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syncFileDb SyncFileDb
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wg *waitgroup.WaitGroup
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ctx context.Context
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cancelFunc context.CancelFunc
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panClient *aliyunpan.PanClient
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fileDownloadParallel int
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fileUploadParallel int
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fileDownloadBlockSize int64
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fileUploadBlockSize int64
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useInternalUrl bool
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maxDownloadRate int64 // 限制最大下载速度
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maxUploadRate int64 // 限制最大上传速度
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fileActionTaskManager *FileActionTaskManager
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}
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)
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const (
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// UploadOnly 单向上传，即备份本地文件到云盘
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UploadOnly SyncMode = "upload"
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// DownloadOnly 只下载，即备份云盘文件到本地
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DownloadOnly SyncMode = "download"
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// SyncTwoWay 双向同步，本地和云盘文件完全保持一致
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SyncTwoWay SyncMode = "sync"
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)
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func (t *SyncTask) NameLabel() string {
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return t.Name + "(" + t.Id + ")"
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}
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func (t *SyncTask) String() string {
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builder := &strings.Builder{}
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builder.WriteString("任务: " + t.NameLabel() + "\n")
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mode := "双向备份"
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if t.Mode == UploadOnly {
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mode = "备份本地文件（只上传）"
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}
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if t.Mode == DownloadOnly {
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mode = "备份云盘文件（只下载）"
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}
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builder.WriteString("同步模式: " + mode + "\n")
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builder.WriteString("本地目录: " + t.LocalFolderPath + "\n")
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builder.WriteString("云盘目录: " + t.PanFolderPath + "\n")
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return builder.String()
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}
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func (t *SyncTask) setupDb() error {
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t.localFileDb = NewLocalSyncDb(t.localSyncDbFullPath())
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t.panFileDb = NewPanSyncDb(t.panSyncDbFullPath())
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t.syncFileDb = NewSyncFileDb(t.syncFileDbFullPath())
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if _, e := t.localFileDb.Open(); e != nil {
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return e
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}
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if _, e := t.panFileDb.Open(); e != nil {
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return e
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}
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if _, e := t.syncFileDb.Open(); e != nil {
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return e
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}
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return nil
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}
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// Start 启动同步任务
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// 扫描本地和云盘文件信息并存储到本地数据库
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func (t *SyncTask) Start() error {
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if t.ctx != nil {
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return fmt.Errorf("task have starting")
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}
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t.setupDb()
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if t.fileActionTaskManager == nil {
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t.fileActionTaskManager = NewFileActionTaskManager(t, t.maxDownloadRate, t.maxUploadRate)
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}
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t.wg = waitgroup.NewWaitGroup(0)
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var cancel context.CancelFunc
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t.ctx, cancel = context.WithCancel(context.Background())
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t.cancelFunc = cancel
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go t.scanLocalFile(t.ctx)
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go t.scanPanFile(t.ctx)
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// start file sync manager
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if e := t.fileActionTaskManager.Start(); e != nil {
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return e
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}
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return nil
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}
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// Stop 停止同步任务
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func (t *SyncTask) Stop() error {
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if t.ctx == nil {
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return nil
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}
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// cancel all sub task & process
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t.cancelFunc()
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// wait for finished
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t.wg.Wait()
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t.ctx = nil
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t.cancelFunc = nil
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// stop file action task (block routine)
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t.fileActionTaskManager.Stop()
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// release resources
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if t.localFileDb != nil {
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t.localFileDb.Close()
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}
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if t.panFileDb != nil {
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t.panFileDb.Close()
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}
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if t.syncFileDb != nil {
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t.syncFileDb.Close()
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}
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// record the sync time
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t.LastSyncTime = utils.NowTimeStr()
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return nil
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}
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// panSyncDbFullPath 云盘文件数据库
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func (t *SyncTask) panSyncDbFullPath() string {
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dir := path.Join(t.syncDbFolderPath, t.Id)
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if b, _ := utils.PathExists(dir); !b {
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os.MkdirAll(dir, 0600)
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}
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return path.Join(dir, "pan.bolt")
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}
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// localSyncDbFullPath 本地文件数据库
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func (t *SyncTask) localSyncDbFullPath() string {
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dir := path.Join(t.syncDbFolderPath, t.Id)
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if b, _ := utils.PathExists(dir); !b {
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os.MkdirAll(dir, 0600)
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}
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return path.Join(dir, "local.bolt")
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}
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// syncFileDbFullPath 同步文件过程数据库
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func (t *SyncTask) syncFileDbFullPath() string {
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dir := path.Join(t.syncDbFolderPath, t.Id)
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if b, _ := utils.PathExists(dir); !b {
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os.MkdirAll(dir, 0600)
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}
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return path.Join(dir, "sync.bolt")
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}
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func newLocalFileItem(file os.FileInfo, fullPath string) *LocalFileItem {
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ft := "file"
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if file.IsDir() {
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ft = "folder"
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}
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return &LocalFileItem{
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FileName: file.Name(),
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FileSize: file.Size(),
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FileType: ft,
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CreatedAt: file.ModTime().Format("2006-01-02 15:04:05"),
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UpdatedAt: file.ModTime().Format("2006-01-02 15:04:05"),
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FileExtension: path.Ext(file.Name()),
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Sha1Hash: "",
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Path: fullPath,
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ScanTimeAt: utils.NowTimeStr(),
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ScanStatus: ScanStatusNormal,
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}
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}
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// discardLocalFileDb 清理本地数据库中无效的数据项
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func (t *SyncTask) discardLocalFileDb(filePath string, startTimeUnix int64) {
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files, e := t.localFileDb.GetFileList(filePath)
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if e != nil {
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return
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}
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for _, file := range files {
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if file.ScanTimeAt == "" || file.ScanTimeUnix() < startTimeUnix {
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// label file discard
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file.ScanStatus = ScanStatusDiscard
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t.localFileDb.Update(file)
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} else {
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if file.IsFolder() {
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t.discardLocalFileDb(file.Path, startTimeUnix)
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}
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}
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}
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}
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// scanLocalFile 本地文件循环扫描进程
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func (t *SyncTask) scanLocalFile(ctx context.Context) {
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type folderItem struct {
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fileInfo os.FileInfo
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path string
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}
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// init the root folders info
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pathParts := strings.Split(strings.ReplaceAll(t.LocalFolderPath, "\\", "/"), "/")
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fullPath := ""
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for _, p := range pathParts {
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if p == "" {
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continue
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}
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if strings.Contains(p, ":") {
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// windows volume label, e.g: C:/ D:/
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fullPath += p
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continue
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}
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fullPath += "/" + p
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fi, err := os.Stat(fullPath)
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if err != nil {
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// may be permission deny
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continue
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}
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t.localFileDb.Add(newLocalFileItem(fi, fullPath))
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}
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folderQueue := collection.NewFifoQueue()
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rootFolder, err := os.Stat(t.LocalFolderPath)
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if err != nil {
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return
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}
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folderQueue.Push(&folderItem{
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fileInfo: rootFolder,
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path: t.LocalFolderPath,
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})
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startTimeOfThisLoop := time.Now().Unix()
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delayTimeCount := int64(0)
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t.wg.AddDelta()
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defer t.wg.Done()
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for {
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select {
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case <-ctx.Done():
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// cancel routine & done
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logger.Verboseln("local file routine done")
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return
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default:
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// 采用广度优先遍历(BFS)进行文件遍历
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if delayTimeCount > 0 {
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time.Sleep(1 * time.Second)
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delayTimeCount -= 1
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continue
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} else if delayTimeCount == 0 {
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delayTimeCount -= 1
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startTimeOfThisLoop = time.Now().Unix()
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logger.Verboseln("do scan local file process at ", utils.NowTimeStr())
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}
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obj := folderQueue.Pop()
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if obj == nil {
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// label discard file from DB
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t.discardLocalFileDb(t.LocalFolderPath, startTimeOfThisLoop)
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// restart scan loop over again
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folderQueue.Push(&folderItem{
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fileInfo: rootFolder,
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path: t.LocalFolderPath,
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})
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delayTimeCount = TimeSecondsOfOneMinute
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continue
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}
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item := obj.(*folderItem)
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files, err := ioutil.ReadDir(item.path)
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if err != nil {
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continue
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}
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if len(files) == 0 {
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continue
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}
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localFileAppendList := LocalFileList{}
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for _, file := range files {
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if strings.HasSuffix(file.Name(), DownloadingFileSuffix) {
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// 下载中文件，跳过
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continue
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}
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localFile := newLocalFileItem(file, item.path+"/"+file.Name())
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localFileInDb, _ := t.localFileDb.Get(localFile.Path)
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if localFileInDb == nil {
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// append
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localFile.ScanTimeAt = utils.NowTimeStr()
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localFileAppendList = append(localFileAppendList, localFile)
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} else {
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// update newest info into DB
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if localFile.UpdateTimeUnix() > localFileInDb.UpdateTimeUnix() {
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localFileInDb.Sha1Hash = ""
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}
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localFileInDb.UpdatedAt = localFile.UpdatedAt
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localFileInDb.CreatedAt = localFile.CreatedAt
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localFileInDb.FileSize = localFile.FileSize
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localFileInDb.FileType = localFile.FileType
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localFileInDb.ScanTimeAt = utils.NowTimeStr()
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localFileInDb.ScanStatus = ScanStatusNormal
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if _, er := t.localFileDb.Update(localFileInDb); er != nil {
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logger.Verboseln("local db update error ", er)
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}
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}
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// for next term scan
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if file.IsDir() {
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folderQueue.Push(&folderItem{
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fileInfo: file,
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path: item.path + "/" + file.Name(),
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})
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}
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}
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if len(localFileAppendList) > 0 {
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//fmt.Println(utils.ObjectToJsonStr(localFileAppendList))
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if _, er := t.localFileDb.AddFileList(localFileAppendList); er != nil {
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logger.Verboseln("add files to local file db error {}", er)
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}
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}
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time.Sleep(500 * time.Millisecond)
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}
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}
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}
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// discardPanFileDb 清理云盘数据库中无效的数据项
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func (t *SyncTask) discardPanFileDb(filePath string, startTimeUnix int64) {
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files, e := t.panFileDb.GetFileList(filePath)
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if e != nil {
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return
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}
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for _, file := range files {
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if file.ScanTimeUnix() < startTimeUnix {
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// label file discard
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file.ScanStatus = ScanStatusDiscard
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t.panFileDb.Update(file)
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} else {
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if file.IsFolder() {
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t.discardPanFileDb(file.Path, startTimeUnix)
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}
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}
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}
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}
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// scanPanFile 云盘文件循环扫描进程
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func (t *SyncTask) scanPanFile(ctx context.Context) {
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// init the root folders info
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pathParts := strings.Split(strings.ReplaceAll(t.PanFolderPath, "\\", "/"), "/")
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fullPath := ""
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for _, p := range pathParts {
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if p == "" {
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continue
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}
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fullPath += "/" + p
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}
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fi, err := t.panClient.FileInfoByPath(t.DriveId, fullPath)
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if err != nil {
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return
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}
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pFile := NewPanFileItem(fi)
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pFile.ScanTimeAt = utils.NowTimeStr()
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t.panFileDb.Add(pFile)
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time.Sleep(200 * time.Millisecond)
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folderQueue := collection.NewFifoQueue()
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rootPanFile := fi
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folderQueue.Push(rootPanFile)
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startTimeOfThisLoop := time.Now().Unix()
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delayTimeCount := int64(0)
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t.wg.AddDelta()
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defer t.wg.Done()
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for {
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select {
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case <-ctx.Done():
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// cancel routine & done
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logger.Verboseln("pan file routine done")
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return
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default:
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// 采用广度优先遍历(BFS)进行文件遍历
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if delayTimeCount > 0 {
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time.Sleep(1 * time.Second)
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delayTimeCount -= 1
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continue
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} else if delayTimeCount == 0 {
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delayTimeCount -= 1
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startTimeOfThisLoop = time.Now().Unix()
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logger.Verboseln("do scan pan file process at ", utils.NowTimeStr())
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}
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obj := folderQueue.Pop()
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if obj == nil {
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// label discard file from DB
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t.discardPanFileDb(t.PanFolderPath, startTimeOfThisLoop)
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// restart scan loop over again
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folderQueue.Push(rootPanFile)
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delayTimeCount = TimeSecondsOf5Minute
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continue
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}
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item := obj.(*aliyunpan.FileEntity)
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// TODO: check to decide to sync file info or to await
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files, err := t.panClient.FileListGetAll(&aliyunpan.FileListParam{
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DriveId: t.DriveId,
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ParentFileId: item.FileId,
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})
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if err != nil {
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// retry next term
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folderQueue.Push(item)
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time.Sleep(10 * time.Second)
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continue
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}
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panFileList := PanFileList{}
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for _, file := range files {
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file.Path = path.Join(item.Path, file.FileName)
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//fmt.Println(utils.ObjectToJsonStr(file, true))
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panFileInDb, _ := t.panFileDb.Get(file.Path)
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if panFileInDb == nil {
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// append
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pFile1 := NewPanFileItem(file)
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pFile1.ScanTimeAt = utils.NowTimeStr()
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panFileList = append(panFileList, pFile1)
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} else {
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// update newest info into DB
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panFileInDb.DomainId = file.DomainId
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panFileInDb.FileId = file.FileId
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panFileInDb.FileType = file.FileType
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panFileInDb.Category = file.Category
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panFileInDb.Crc64Hash = file.Crc64Hash
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panFileInDb.Sha1Hash = file.ContentHash
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panFileInDb.FileSize = file.FileSize
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panFileInDb.UpdatedAt = file.UpdatedAt
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panFileInDb.CreatedAt = file.CreatedAt
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panFileInDb.ScanTimeAt = utils.NowTimeStr()
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panFileInDb.ScanStatus = ScanStatusNormal
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t.panFileDb.Update(panFileInDb)
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}
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if file.IsFolder() {
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folderQueue.Push(file)
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}
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}
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if len(panFileList) > 0 {
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if _, er := t.panFileDb.AddFileList(panFileList); er != nil {
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logger.Verboseln("add files to pan file db error {}", er)
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}
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}
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time.Sleep(2 * time.Second) // 延迟避免触发风控
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}
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}
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}
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