fix(baidu_netdisk): support resuming uploads when an error occurs (#1279)

support resuming uploads when an error occurs

Author: jenfonro

drivers/baidu_netdisk/driver.go

@@ -5,11 +5,13 @@ import (
 	"crypto/md5"
 	"encoding/hex"
 	"errors"
+	"fmt"
 	"io"
 	"net/url"
 	"os"
 	stdpath "path"
 	"strconv"
+	"strings"
 	"time"
 
 	"github.com/OpenListTeam/OpenList/v4/drivers/base"
@@ -31,6 +33,8 @@ type BaiduNetdisk struct {
 	vipType      int // 会员类型，0普通用户(4G/4M)、1普通会员(10G/16M)、2超级会员(20G/32M)
 }
 
+var ErrUploadIDExpired = errors.New("uploadid expired")
+
 func (d *BaiduNetdisk) Config() driver.Config {
 	return config
 }
@@ -214,7 +218,6 @@ func (d *BaiduNetdisk) Put(ctx context.Context, dstDir model.Obj, stream model.F
 
 	// cal md5 for first 256k data
 	const SliceSize int64 = 256 * utils.KB
-	// cal md5
 	blockList := make([]string, 0, count)
 	byteSize := sliceSize
 	fileMd5H := md5.New()
@@ -244,7 +247,7 @@ func (d *BaiduNetdisk) Put(ctx context.Context, dstDir model.Obj, stream model.F
 	}
 	if tmpF != nil {
 		if written != streamSize {
-			return nil, errs.NewErr(err, "CreateTempFile failed, incoming stream actual size= %d, expect = %d ", written, streamSize)
+			return nil, errs.NewErr(err, "CreateTempFile failed, size mismatch: %d != %d ", written, streamSize)
 		}
 		_, err = tmpF.Seek(0, io.SeekStart)
 		if err != nil {
@@ -258,31 +261,14 @@ func (d *BaiduNetdisk) Put(ctx context.Context, dstDir model.Obj, stream model.F
 	mtime := stream.ModTime().Unix()
 	ctime := stream.CreateTime().Unix()
 
-	// step.1 预上传
-	// 尝试获取之前的进度
+	// step.1 尝试读取已保存进度
 	precreateResp, ok := base.GetUploadProgress[*PrecreateResp](d, d.AccessToken, contentMd5)
 	if !ok {
-		params := map[string]string{
-			"method": "precreate",
-		}
-		form := map[string]string{
-			"path":        path,
-			"size":        strconv.FormatInt(streamSize, 10),
-			"isdir":       "0",
-			"autoinit":    "1",
-			"rtype":       "3",
-			"block_list":  blockListStr,
-			"content-md5": contentMd5,
-			"slice-md5":   sliceMd5,
-		}
-		joinTime(form, ctime, mtime)
-
-		log.Debugf("[baidu_netdisk] precreate data: %s", form)
-		_, err = d.postForm("/xpan/file", params, form, &precreateResp)
+		// 没有进度，走预上传
+		precreateResp, err = d.precreate(ctx, path, streamSize, blockListStr, contentMd5, sliceMd5, ctime, mtime)
 		if err != nil {
 			return nil, err
 		}
-		log.Debugf("%+v", precreateResp)
 		if precreateResp.ReturnType == 2 {
 			// rapid upload, since got md5 match from baidu server
 			// 修复时间，具体原因见 Put 方法注释的 **注意**
@@ -291,45 +277,81 @@ func (d *BaiduNetdisk) Put(ctx context.Context, dstDir model.Obj, stream model.F
 			return fileToObj(precreateResp.File), nil
 		}
 	}
+
 	// step.2 上传分片
-	threadG, upCtx := errgroup.NewGroupWithContext(ctx, d.uploadThread,
-		retry.Attempts(1),
-		retry.Delay(time.Second),
-		retry.DelayType(retry.BackOffDelay))
-
-	for i, partseq := range precreateResp.BlockList {
-		if utils.IsCanceled(upCtx) {
-			break
+uploadLoop:
+	for attempt := 0; attempt < 2; attempt++ {
+		threadG, upCtx := errgroup.NewGroupWithContext(ctx, d.uploadThread,
+			retry.Attempts(1),
+			retry.Delay(time.Second),
+			retry.DelayType(retry.BackOffDelay))
+
+		cacheReaderAt, okReaderAt := cache.(io.ReaderAt)
+		if !okReaderAt {
+			return nil, fmt.Errorf("cache object must implement io.ReaderAt interface for upload operations")
 		}
 
-		i, partseq, offset, byteSize := i, partseq, int64(partseq)*sliceSize, sliceSize
-		if partseq+1 == count {
-			byteSize = lastBlockSize
-		}
-		threadG.Go(func(ctx context.Context) error {
-			params := map[string]string{
-				"method":       "upload",
-				"access_token": d.AccessToken,
-				"type":         "tmpfile",
-				"path":         path,
-				"uploadid":     precreateResp.Uploadid,
-				"partseq":      strconv.Itoa(partseq),
+		totalParts := len(precreateResp.BlockList)
+		doneParts := 0 // 新增计数器
+
+		for i, partseq := range precreateResp.BlockList {
+			if utils.IsCanceled(upCtx) || partseq < 0 {
+				continue
 			}
-			err := d.uploadSlice(ctx, params, stream.GetName(),
-				driver.NewLimitedUploadStream(ctx, io.NewSectionReader(cache, offset, byteSize)))
-			if err != nil {
-				return err
+			i, partseq := i, partseq
+			offset, size := int64(partseq)*sliceSize, sliceSize
+			if partseq+1 == count {
+				size = lastBlockSize
 			}
-			up(float64(threadG.Success()) * 100 / float64(len(precreateResp.BlockList)))
-			precreateResp.BlockList[i] = -1
-			return nil
-		})
-	}
-	if err = threadG.Wait(); err != nil {
-		// 如果属于用户主动取消，则保存上传进度
+			threadG.Go(func(ctx context.Context) error {
+				params := map[string]string{
+					"method":       "upload",
+					"access_token": d.AccessToken,
+					"type":         "tmpfile",
+					"path":         path,
+					"uploadid":     precreateResp.Uploadid,
+					"partseq":      strconv.Itoa(partseq),
+				}
+				section := io.NewSectionReader(cacheReaderAt, offset, size)
+				err := d.uploadSlice(ctx, params, stream.GetName(), driver.NewLimitedUploadStream(ctx, section))
+				if err != nil {
+					return err
+				}
+				precreateResp.BlockList[i] = -1
+				doneParts++ // 直接递增计数器
+				if totalParts > 0 {
+					up(float64(doneParts) * 100.0 / float64(totalParts))
+				}
+				return nil
+			})
+		}
+
+		err = threadG.Wait()
+		if err == nil {
+			break uploadLoop
+		}
+
+		// 保存进度（所有错误都会保存）
+		precreateResp.BlockList = utils.SliceFilter(precreateResp.BlockList, func(s int) bool { return s >= 0 })
+		base.SaveUploadProgress(d, precreateResp, d.AccessToken, contentMd5)
+
 		if errors.Is(err, context.Canceled) {
-			precreateResp.BlockList = utils.SliceFilter(precreateResp.BlockList, func(s int) bool { return s >= 0 })
+			return nil, err
+		}
+		if errors.Is(err, ErrUploadIDExpired) {
+			log.Warn("[baidu_netdisk] uploadid expired, will restart from scratch")
+			// 重新 precreate（所有分片都要重传）
+			newPre, err2 := d.precreate(ctx, path, streamSize, blockListStr, "", "", ctime, mtime)
+			if err2 != nil {
+				return nil, err2
+			}
+			if newPre.ReturnType == 2 {
+				return fileToObj(newPre.File), nil
+			}
+			precreateResp = newPre
+			// 覆盖掉旧的进度
 			base.SaveUploadProgress(d, precreateResp, d.AccessToken, contentMd5)
+			continue uploadLoop
 		}
 		return nil, err
 	}
@@ -343,9 +365,46 @@ func (d *BaiduNetdisk) Put(ctx context.Context, dstDir model.Obj, stream model.F
 	// 修复时间，具体原因见 Put 方法注释的 **注意**
 	newFile.Ctime = ctime
 	newFile.Mtime = mtime
+	// 上传成功清理进度
+	base.SaveUploadProgress(d, nil, d.AccessToken, contentMd5)
 	return fileToObj(newFile), nil
 }
 
+// precreate 执行预上传操作，支持首次上传和 uploadid 过期重试
+func (d *BaiduNetdisk) precreate(ctx context.Context, path string, streamSize int64, blockListStr, contentMd5, sliceMd5 string, ctime, mtime int64) (*PrecreateResp, error) {
+	params := map[string]string{"method": "precreate"}
+	form := map[string]string{
+		"path":       path,
+		"size":       strconv.FormatInt(streamSize, 10),
+		"isdir":      "0",
+		"autoinit":   "1",
+		"rtype":      "3",
+		"block_list": blockListStr,
+	}
+
+	// 只有在首次上传时才包含 content-md5 和 slice-md5
+	if contentMd5 != "" && sliceMd5 != "" {
+		form["content-md5"] = contentMd5
+		form["slice-md5"] = sliceMd5
+	}
+
+	joinTime(form, ctime, mtime)
+
+	var precreateResp PrecreateResp
+	_, err := d.postForm("/xpan/file", params, form, &precreateResp)
+	if err != nil {
+		return nil, err
+	}
+
+	// 修复时间，具体原因见 Put 方法注释的 **注意**
+	if precreateResp.ReturnType == 2 {
+		precreateResp.File.Ctime = ctime
+		precreateResp.File.Mtime = mtime
+	}
+
+	return &precreateResp, nil
+}
+
 func (d *BaiduNetdisk) uploadSlice(ctx context.Context, params map[string]string, fileName string, file io.Reader) error {
 	res, err := base.RestyClient.R().
 		SetContext(ctx).
@@ -358,8 +417,16 @@ func (d *BaiduNetdisk) uploadSlice(ctx context.Context, params map[string]string
 	log.Debugln(res.RawResponse.Status + res.String())
 	errCode := utils.Json.Get(res.Body(), "error_code").ToInt()
 	errNo := utils.Json.Get(res.Body(), "errno").ToInt()
+	respStr := res.String()
+	lower := strings.ToLower(respStr)
+	// 合并 uploadid 过期检测逻辑
+	if strings.Contains(lower, "uploadid") &&
+		(strings.Contains(lower, "invalid") || strings.Contains(lower, "expired") || strings.Contains(lower, "not found")) {
+		return ErrUploadIDExpired
+	}
+
 	if errCode != 0 || errNo != 0 {
-		return errs.NewErr(errs.StreamIncomplete, "error in uploading to baidu, will retry. response=%s", res.String())
+		return errs.NewErr(errs.StreamIncomplete, "error uploading to baidu, response=%s", res.String())
 	}
 	return nil
 }