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cloudreve/pkg/task/compress.go

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