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386 lines
9.3 KiB
386 lines
9.3 KiB
package pkg
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import (
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"bufio"
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"context"
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"crypto/md5"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"log"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/OpenIMSDK/protocol/third"
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)
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type Upload struct {
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URL string `json:"url"`
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Name string `json:"name"`
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ContentType string `json:"contentType"`
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}
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type Task struct {
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Index int
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Upload Upload
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}
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type PartInfo struct {
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ContentType string
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PartSize int64
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PartNum int
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FileMd5 string
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PartMd5 string
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PartSizes []int64
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PartMd5s []string
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}
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func Run(conf Config) error {
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m := &Manage{
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prefix: time.Now().Format("20060102150405"),
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conf: &conf,
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ctx: context.Background(),
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}
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return m.Run()
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}
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type Manage struct {
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conf *Config
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ctx context.Context
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api *Api
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partLimit *third.PartLimitResp
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prefix string
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tasks chan Task
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id uint64
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success int64
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failed int64
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}
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func (m *Manage) tempFilePath() string {
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return filepath.Join(m.conf.TempDir, fmt.Sprintf("%s_%d", m.prefix, atomic.AddUint64(&m.id, 1)))
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}
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func (m *Manage) Run() error {
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defer func(start time.Time) {
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log.Printf("run time %s\n", time.Since(start))
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}(time.Now())
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m.api = &Api{
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Api: m.conf.Api,
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UserID: m.conf.UserID,
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Secret: m.conf.Secret,
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Client: &http.Client{Timeout: m.conf.Timeout},
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}
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var err error
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ctx := context.WithValue(m.ctx, "operationID", fmt.Sprintf("%s_init", m.prefix))
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m.api.Token, err = m.api.GetToken(ctx)
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if err != nil {
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return err
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}
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m.partLimit, err = m.api.GetPartLimit(ctx)
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if err != nil {
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return err
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}
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progress, err := ReadProgress(m.conf.ProgressPath)
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if err != nil {
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return err
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}
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progressFile, err := os.OpenFile(m.conf.ProgressPath, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
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if err != nil {
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return err
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}
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var mutex sync.Mutex
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writeSuccessIndex := func(index int) {
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mutex.Lock()
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defer mutex.Unlock()
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if _, err := progressFile.Write([]byte(strconv.Itoa(index) + "\n")); err != nil {
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log.Printf("write progress err: %v\n", err)
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}
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}
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file, err := os.Open(m.conf.TaskPath)
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if err != nil {
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return err
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}
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m.tasks = make(chan Task, m.conf.Concurrency*2)
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go func() {
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defer file.Close()
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defer close(m.tasks)
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scanner := bufio.NewScanner(file)
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var (
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index int
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num int
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)
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if line == "" {
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continue
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}
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index++
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if progress.IsUploaded(index) {
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log.Printf("index: %d already uploaded %s\n", index, line)
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continue
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}
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var upload Upload
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if err := json.Unmarshal([]byte(line), &upload); err != nil {
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log.Printf("index: %d json.Unmarshal(%s) err: %v", index, line, err)
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continue
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}
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num++
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m.tasks <- Task{
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Index: index,
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Upload: upload,
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}
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}
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if num == 0 {
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log.Println("mark all completed")
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}
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}()
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var wg sync.WaitGroup
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wg.Add(m.conf.Concurrency)
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for i := 0; i < m.conf.Concurrency; i++ {
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go func(tid int) {
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defer wg.Done()
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for task := range m.tasks {
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var success bool
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for n := 0; n < m.conf.Retry; n++ {
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ctx := context.WithValue(m.ctx, "operationID", fmt.Sprintf("%s_%d_%d_%d", m.prefix, tid, task.Index, n+1))
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if urlRaw, err := m.RunTask(ctx, task); err == nil {
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writeSuccessIndex(task.Index)
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log.Println("index:", task.Index, "upload success", "urlRaw", urlRaw)
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success = true
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break
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} else {
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log.Printf("index: %d upload: %+v err: %v", task.Index, task.Upload, err)
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}
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}
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if success {
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atomic.AddInt64(&m.success, 1)
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} else {
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atomic.AddInt64(&m.failed, 1)
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log.Printf("index: %d upload: %+v failed", task.Index, task.Upload)
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}
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}
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}(i + 1)
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}
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wg.Wait()
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log.Printf("execution completed success %d failed %d\n", m.success, m.failed)
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return nil
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}
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func (m *Manage) RunTask(ctx context.Context, task Task) (string, error) {
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resp, err := m.HttpGet(ctx, task.Upload.URL)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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reader, err := NewReader(resp.Body, m.conf.CacheSize, m.tempFilePath())
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if err != nil {
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return "", err
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}
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defer reader.Close()
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part, err := m.getPartInfo(ctx, reader, reader.Size())
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if err != nil {
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return "", err
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}
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var contentType string
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if task.Upload.ContentType == "" {
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contentType = part.ContentType
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} else {
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contentType = task.Upload.ContentType
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}
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initiateMultipartUploadResp, err := m.api.InitiateMultipartUpload(ctx, &third.InitiateMultipartUploadReq{
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Hash: part.PartMd5,
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Size: reader.Size(),
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PartSize: part.PartSize,
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MaxParts: -1,
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Cause: "batch-import",
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Name: task.Upload.Name,
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ContentType: contentType,
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})
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if err != nil {
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return "", err
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}
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if initiateMultipartUploadResp.Upload == nil {
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return initiateMultipartUploadResp.Url, nil
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}
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if _, err := reader.Seek(0, io.SeekStart); err != nil {
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return "", err
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}
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uploadParts := make([]*third.SignPart, part.PartNum)
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for _, part := range initiateMultipartUploadResp.Upload.Sign.Parts {
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uploadParts[part.PartNumber-1] = part
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}
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for i, currentPartSize := range part.PartSizes {
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md5Reader := NewMd5Reader(io.LimitReader(reader, currentPartSize))
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if m.doPut(ctx, m.api.Client, initiateMultipartUploadResp.Upload.Sign, uploadParts[i], md5Reader, currentPartSize); err != nil {
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return "", err
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}
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if md5val := md5Reader.Md5(); md5val != part.PartMd5s[i] {
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return "", fmt.Errorf("upload part %d failed, md5 not match, expect %s, got %s", i, part.PartMd5s[i], md5val)
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}
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}
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urlRaw, err := m.api.CompleteMultipartUpload(ctx, &third.CompleteMultipartUploadReq{
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UploadID: initiateMultipartUploadResp.Upload.UploadID,
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Parts: part.PartMd5s,
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Name: task.Upload.Name,
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ContentType: contentType,
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Cause: "batch-import",
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})
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if err != nil {
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return "", err
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}
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return urlRaw, nil
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}
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func (m *Manage) partSize(size int64) (int64, error) {
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if size <= 0 {
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return 0, errors.New("size must be greater than 0")
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}
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if size > m.partLimit.MaxPartSize*int64(m.partLimit.MaxNumSize) {
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return 0, fmt.Errorf("size must be less than %db", m.partLimit.MaxPartSize*int64(m.partLimit.MaxNumSize))
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}
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if size <= m.partLimit.MinPartSize*int64(m.partLimit.MaxNumSize) {
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return m.partLimit.MinPartSize, nil
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}
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partSize := size / int64(m.partLimit.MaxNumSize)
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if size%int64(m.partLimit.MaxNumSize) != 0 {
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partSize++
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}
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return partSize, nil
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}
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func (m *Manage) partMD5(parts []string) string {
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s := strings.Join(parts, ",")
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md5Sum := md5.Sum([]byte(s))
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return hex.EncodeToString(md5Sum[:])
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}
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func (m *Manage) getPartInfo(ctx context.Context, r io.Reader, fileSize int64) (*PartInfo, error) {
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partSize, err := m.partSize(fileSize)
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if err != nil {
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return nil, err
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}
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partNum := int(fileSize / partSize)
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if fileSize%partSize != 0 {
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partNum++
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}
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partSizes := make([]int64, partNum)
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for i := 0; i < partNum; i++ {
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partSizes[i] = partSize
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}
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partSizes[partNum-1] = fileSize - partSize*(int64(partNum)-1)
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partMd5s := make([]string, partNum)
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buf := make([]byte, 1024*8)
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fileMd5 := md5.New()
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var contentType string
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for i := 0; i < partNum; i++ {
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h := md5.New()
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r := io.LimitReader(r, partSize)
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for {
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if n, err := r.Read(buf); err == nil {
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if contentType == "" {
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contentType = http.DetectContentType(buf[:n])
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}
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h.Write(buf[:n])
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fileMd5.Write(buf[:n])
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} else if err == io.EOF {
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break
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} else {
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return nil, err
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}
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}
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partMd5s[i] = hex.EncodeToString(h.Sum(nil))
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}
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partMd5Val := m.partMD5(partMd5s)
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fileMd5val := hex.EncodeToString(fileMd5.Sum(nil))
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return &PartInfo{
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ContentType: contentType,
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PartSize: partSize,
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PartNum: partNum,
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FileMd5: fileMd5val,
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PartMd5: partMd5Val,
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PartSizes: partSizes,
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PartMd5s: partMd5s,
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}, nil
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}
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func (m *Manage) doPut(ctx context.Context, client *http.Client, sign *third.AuthSignParts, part *third.SignPart, reader io.Reader, size int64) error {
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rawURL := part.Url
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if rawURL == "" {
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rawURL = sign.Url
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}
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if len(sign.Query)+len(part.Query) > 0 {
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u, err := url.Parse(rawURL)
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if err != nil {
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return err
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}
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query := u.Query()
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for i := range sign.Query {
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v := sign.Query[i]
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query[v.Key] = v.Values
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}
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for i := range part.Query {
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v := part.Query[i]
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query[v.Key] = v.Values
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}
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u.RawQuery = query.Encode()
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rawURL = u.String()
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodPut, rawURL, reader)
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if err != nil {
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return err
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}
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for i := range sign.Header {
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v := sign.Header[i]
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req.Header[v.Key] = v.Values
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}
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for i := range part.Header {
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v := part.Header[i]
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req.Header[v.Key] = v.Values
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}
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req.ContentLength = size
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resp, err := client.Do(req)
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if err != nil {
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return err
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}
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defer func() {
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_ = resp.Body.Close()
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}()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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if resp.StatusCode/200 != 1 {
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return fmt.Errorf("PUT %s part %d failed, status code %d, body %s", rawURL, part.PartNumber, resp.StatusCode, string(body))
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}
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return nil
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}
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func (m *Manage) HttpGet(ctx context.Context, url string) (*http.Response, error) {
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reqUrl := url
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for {
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request, err := http.NewRequestWithContext(ctx, http.MethodGet, reqUrl, nil)
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if err != nil {
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return nil, err
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}
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DefaultRequestHeader(request.Header)
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response, err := m.api.Client.Do(request)
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if err != nil {
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return nil, err
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}
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if response.StatusCode != http.StatusOK {
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_ = response.Body.Close()
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return nil, fmt.Errorf("http get %s status %s", url, response.Status)
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}
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return response, nil
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}
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}
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