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package task
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import (
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"context"
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"encoding/json"
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model "github.com/HFO4/cloudreve/models"
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"github.com/HFO4/cloudreve/pkg/filesystem"
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"github.com/HFO4/cloudreve/pkg/util"
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"os"
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)
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// CompressTask 文件压缩任务
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type CompressTask struct {
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User *model.User
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TaskModel *model.Task
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TaskProps CompressProps
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Err *JobError
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zipPath string
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}
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// CompressProps 压缩任务属性
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type CompressProps struct {
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Dirs []uint `json:"dirs"`
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Files []uint `json:"files"`
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Dst string `json:"dst"`
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}
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// Props 获取任务属性
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func (job *CompressTask) Props() string {
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res, _ := json.Marshal(job.TaskProps)
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return string(res)
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}
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// Type 获取任务状态
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func (job *CompressTask) Type() int {
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return CompressTaskType
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}
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// Creator 获取创建者ID
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func (job *CompressTask) Creator() uint {
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return job.User.ID
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}
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// Model 获取任务的数据库模型
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func (job *CompressTask) Model() *model.Task {
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return job.TaskModel
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}
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// SetStatus 设定状态
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func (job *CompressTask) SetStatus(status int) {
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job.TaskModel.SetStatus(status)
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}
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// SetError 设定任务失败信息
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func (job *CompressTask) SetError(err *JobError) {
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job.Err = err
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res, _ := json.Marshal(job.Err)
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job.TaskModel.SetError(string(res))
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// 删除压缩文件
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job.removeZipFile()
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}
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func (job *CompressTask) removeZipFile() {
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if job.zipPath != "" {
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if err := os.Remove(job.zipPath); err != nil {
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util.Log().Warning("无法删除临时压缩文件 %s , %s", job.zipPath, err)
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}
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}
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}
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// SetErrorMsg 设定任务失败信息
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func (job *CompressTask) SetErrorMsg(msg string) {
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job.SetError(&JobError{Msg: msg})
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}
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// GetError 返回任务失败信息
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func (job *CompressTask) GetError() *JobError {
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return job.Err
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}
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// Do 开始执行任务
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func (job *CompressTask) Do() {
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// 创建文件系统
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fs, err := filesystem.NewFileSystem(job.User)
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if err != nil {
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job.SetErrorMsg(err.Error())
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return
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}
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util.Log().Debug("开始压缩文件")
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job.TaskModel.SetProgress(CompressingProgress)
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// 开始压缩
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ctx := context.Background()
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zipFile, err := fs.Compress(ctx, job.TaskProps.Dirs, job.TaskProps.Files, false)
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if err != nil {
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job.SetErrorMsg(err.Error())
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return
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}
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job.zipPath = zipFile
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util.Log().Debug("压缩文件存放至%s，开始上传", zipFile)
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job.TaskModel.SetProgress(TransferringProgress)
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// 上传文件
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err = fs.UploadFromPath(ctx, zipFile, job.TaskProps.Dst)
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if err != nil {
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job.SetErrorMsg(err.Error())
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return
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}
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job.removeZipFile()
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}
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// NewCompressTask 新建压缩任务
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func NewCompressTask(user *model.User, dst string, dirs, files []uint) (Job, error) {
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newTask := &CompressTask{
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User: user,
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TaskProps: CompressProps{
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Dirs: dirs,
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Files: files,
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Dst: dst,
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},
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}
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record, err := Record(newTask)
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if err != nil {
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return nil, err
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}
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newTask.TaskModel = record
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return newTask, nil
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}
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// NewCompressTaskFromModel 从数据库记录中恢复压缩任务
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func NewCompressTaskFromModel(task *model.Task) (Job, error) {
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user, err := model.GetActiveUserByID(task.UserID)
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if err != nil {
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return nil, err
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}
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newTask := &CompressTask{
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User: &user,
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TaskModel: task,
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}
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err = json.Unmarshal([]byte(task.Props), &newTask.TaskProps)
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if err != nil {
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return nil, err
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}
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return newTask, nil
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}
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