diff --git a/models/file.go b/models/file.go
index 39f50c4..92c8f82 100644
--- a/models/file.go
+++ b/models/file.go
@@ -14,15 +14,15 @@ import (
 type File struct {
 	// 表字段
 	gorm.Model
-	Name       string `gorm:"unique_index:idx_only_one"`
-	SourceName string `gorm:"type:text"`
-	UserID     uint   `gorm:"index:user_id;unique_index:idx_only_one"`
-	Size       uint64
-	PicInfo    string
-	FolderID   uint `gorm:"index:folder_id;unique_index:idx_only_one"`
-	PolicyID   uint
-	Hidden     bool
-	Metadata   string `gorm:"type:text"`
+	Name            string `gorm:"unique_index:idx_only_one"`
+	SourceName      string `gorm:"type:text"`
+	UserID          uint   `gorm:"index:user_id;unique_index:idx_only_one"`
+	Size            uint64
+	PicInfo         string
+	FolderID        uint `gorm:"index:folder_id;unique_index:idx_only_one"`
+	PolicyID        uint
+	UploadSessionID *string `gorm:"index:session_id;unique_index:session_only_one"`
+	Metadata        string  `gorm:"type:text"`
 
 	// 关联模型
 	Policy Policy `gorm:"PRELOAD:false,association_autoupdate:false"`
@@ -220,6 +220,11 @@ func (file *File) UpdateSourceName(value string) error {
 	return DB.Model(&file).Set("gorm:association_autoupdate", false).Update("source_name", value).Error
 }
 
+// CanCopy 返回文件是否可被复制
+func (file *File) CanCopy() bool {
+	return file.UploadSessionID == nil
+}
+
 /*
 	实现 webdav.FileInfo 接口
 */
diff --git a/models/folder.go b/models/folder.go
index 8655b53..6bb9d7b 100644
--- a/models/folder.go
+++ b/models/folder.go
@@ -158,6 +158,11 @@ func (folder *Folder) MoveOrCopyFileTo(files []uint, dstFolder *Folder, isCopy b
 
 		// 复制文件记录
 		for _, oldFile := range originFiles {
+			if !oldFile.CanCopy() {
+				util.Log().Warning("无法复制正在上传中的文件 [%s]， 跳过...", oldFile.Name)
+				continue
+			}
+
 			oldFile.Model = gorm.Model{}
 			oldFile.FolderID = dstFolder.ID
 			oldFile.UserID = dstFolder.OwnerID
@@ -246,6 +251,11 @@ func (folder *Folder) CopyFolderTo(folderID uint, dstFolder *Folder) (size uint6
 
 	// 复制文件记录
 	for _, oldFile := range originFiles {
+		if !oldFile.CanCopy() {
+			util.Log().Warning("无法复制正在上传中的文件 [%s]， 跳过...", oldFile.Name)
+			continue
+		}
+
 		oldFile.Model = gorm.Model{}
 		oldFile.FolderID = newIDCache[oldFile.FolderID]
 		oldFile.UserID = dstFolder.OwnerID
diff --git a/pkg/filesystem/driver/cos/handler.go b/pkg/filesystem/driver/cos/handler.go
index d97ad80..505af1b 100644
--- a/pkg/filesystem/driver/cos/handler.go
+++ b/pkg/filesystem/driver/cos/handler.go
@@ -185,7 +185,7 @@ func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser,
 // Put 将文件流保存到指定目录
 func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	opt := &cossdk.ObjectPutOptions{}
-	_, err := handler.Client.Object.Put(ctx, file.GetSavePath(), file, opt)
+	_, err := handler.Client.Object.Put(ctx, file.Info().SavePath, file, opt)
 	return err
 }
 
@@ -331,6 +331,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	apiURL := siteURL.ResolveReference(apiBaseURI).String()
 
 	// 上传策略
+	savePath := file.Info().SavePath
 	startTime := time.Now()
 	endTime := startTime.Add(time.Duration(ttl) * time.Second)
 	keyTime := fmt.Sprintf("%d;%d", startTime.Unix(), endTime.Unix())
@@ -338,7 +339,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 		Expiration: endTime.UTC().Format(time.RFC3339),
 		Conditions: []interface{}{
 			map[string]string{"bucket": handler.Policy.BucketName},
-			map[string]string{"$key": file.GetSavePath()},
+			map[string]string{"$key": savePath},
 			map[string]string{"x-cos-meta-callback": apiURL},
 			map[string]string{"x-cos-meta-key": uploadSession.Key},
 			map[string]string{"q-sign-algorithm": "sha1"},
@@ -352,7 +353,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 			[]interface{}{"content-length-range", 0, handler.Policy.MaxSize})
 	}
 
-	res, err := handler.getUploadCredential(ctx, postPolicy, keyTime, file.GetSavePath())
+	res, err := handler.getUploadCredential(ctx, postPolicy, keyTime, savePath)
 	if err == nil {
 		res.Callback = apiURL
 		res.Key = uploadSession.Key
diff --git a/pkg/filesystem/driver/local/handler.go b/pkg/filesystem/driver/local/handler.go
index be1af28..7f00216 100644
--- a/pkg/filesystem/driver/local/handler.go
+++ b/pkg/filesystem/driver/local/handler.go
@@ -85,10 +85,11 @@ func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser,
 // Put 将文件流保存到指定目录
 func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	defer file.Close()
-	dst := util.RelativePath(filepath.FromSlash(file.GetSavePath()))
+	fileInfo := file.Info()
+	dst := util.RelativePath(filepath.FromSlash(fileInfo.SavePath))
 
 	// 如果非 Overwrite，则检查是否有重名冲突
-	if file.GetMode() == fsctx.Create {
+	if fileInfo.Mode == fsctx.Create {
 		if util.Exists(dst) {
 			util.Log().Warning("物理同名文件已存在或不可用: %s", dst)
 			return errors.New("物理同名文件已存在或不可用")
diff --git a/pkg/filesystem/driver/onedrive/api.go b/pkg/filesystem/driver/onedrive/api.go
index 05afb2f..06dc96b 100644
--- a/pkg/filesystem/driver/onedrive/api.go
+++ b/pkg/filesystem/driver/onedrive/api.go
@@ -258,14 +258,15 @@ func (client *Client) UploadChunk(ctx context.Context, uploadURL string, chunk *
 
 // Upload 上传文件
 func (client *Client) Upload(ctx context.Context, file fsctx.FileHeader) error {
+	fileInfo := file.Info()
 	// 决定是否覆盖文件
 	overwrite := "replace"
-	if file.GetMode() != fsctx.Create {
+	if fileInfo.Mode != fsctx.Create {
 		overwrite = "fail"
 	}
 
-	size := int(file.GetSize())
-	dst := file.GetSavePath()
+	size := int(fileInfo.Size)
+	dst := fileInfo.SavePath
 
 	// 小文件，使用简单上传接口上传
 	if size <= int(SmallFileSize) {
diff --git a/pkg/filesystem/driver/onedrive/handler.go b/pkg/filesystem/driver/onedrive/handler.go
index df92549..df14f04 100644
--- a/pkg/filesystem/driver/onedrive/handler.go
+++ b/pkg/filesystem/driver/onedrive/handler.go
@@ -223,9 +223,10 @@ func (handler Driver) replaceSourceHost(origin string) (string, error) {
 
 // Token 获取上传会话URL
 func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *serializer.UploadSession, file fsctx.FileHeader) (serializer.UploadCredential, error) {
+	fileInfo := file.Info()
 
 	// 如果小于4MB，则由服务端中转
-	if file.GetSize() <= SmallFileSize {
+	if fileInfo.Size <= SmallFileSize {
 		return serializer.UploadCredential{}, nil
 	}
 
@@ -234,13 +235,13 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	apiBaseURI, _ := url.Parse("/api/v3/callback/onedrive/finish/" + uploadSession.Key)
 	apiURL := siteURL.ResolveReference(apiBaseURI)
 
-	uploadURL, err := handler.Client.CreateUploadSession(ctx, file.GetSavePath(), WithConflictBehavior("fail"))
+	uploadURL, err := handler.Client.CreateUploadSession(ctx, fileInfo.SavePath, WithConflictBehavior("fail"))
 	if err != nil {
 		return serializer.UploadCredential{}, err
 	}
 
 	// 监控回调及上传
-	go handler.Client.MonitorUpload(uploadURL, uploadSession.Key, file.GetSavePath(), file.GetSize(), ttl)
+	go handler.Client.MonitorUpload(uploadURL, uploadSession.Key, fileInfo.SavePath, fileInfo.Size, ttl)
 
 	return serializer.UploadCredential{
 		Policy: uploadURL,
diff --git a/pkg/filesystem/driver/oss/handler.go b/pkg/filesystem/driver/oss/handler.go
index b644969..e5ed154 100644
--- a/pkg/filesystem/driver/oss/handler.go
+++ b/pkg/filesystem/driver/oss/handler.go
@@ -226,6 +226,7 @@ func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser,
 // Put 将文件流保存到指定目录
 func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	defer file.Close()
+	fileInfo := file.Info()
 
 	// 初始化客户端
 	if err := handler.InitOSSClient(false); err != nil {
@@ -237,7 +238,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 
 	// 是否允许覆盖
 	overwrite := true
-	if file.GetMode() == fsctx.Create {
+	if fileInfo.Mode == fsctx.Create {
 		overwrite = false
 	}
 
@@ -247,7 +248,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	}
 
 	// 上传文件
-	err := handler.bucket.PutObject(file.GetSavePath(), file, options...)
+	err := handler.bucket.PutObject(fileInfo.SavePath, file, options...)
 	if err != nil {
 		return err
 	}
@@ -411,11 +412,12 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	}
 
 	// 上传策略
+	savePath := file.Info().SavePath
 	postPolicy := UploadPolicy{
 		Expiration: time.Now().UTC().Add(time.Duration(ttl) * time.Second).Format(time.RFC3339),
 		Conditions: []interface{}{
 			map[string]string{"bucket": handler.Policy.BucketName},
-			[]string{"starts-with", "$key", path.Dir(file.GetSavePath())},
+			[]string{"starts-with", "$key", path.Dir(savePath)},
 		},
 	}
 
@@ -424,7 +426,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 			[]interface{}{"content-length-range", 0, handler.Policy.MaxSize})
 	}
 
-	return handler.getUploadCredential(ctx, postPolicy, callbackPolicy, ttl, file.GetSavePath())
+	return handler.getUploadCredential(ctx, postPolicy, callbackPolicy, ttl, savePath)
 }
 
 func (handler Driver) getUploadCredential(ctx context.Context, policy UploadPolicy, callback CallbackPolicy, TTL int64, savePath string) (serializer.UploadCredential, error) {
diff --git a/pkg/filesystem/driver/qiniu/handler.go b/pkg/filesystem/driver/qiniu/handler.go
index 3859acd..7304d8f 100644
--- a/pkg/filesystem/driver/qiniu/handler.go
+++ b/pkg/filesystem/driver/qiniu/handler.go
@@ -150,12 +150,13 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	credentialTTL := model.GetIntSetting("upload_credential_timeout", 3600)
 
 	// 生成上传策略
+	fileInfo := file.Info()
 	putPolicy := storage.PutPolicy{
 		// 指定为覆盖策略
-		Scope:        fmt.Sprintf("%s:%s", handler.Policy.BucketName, file.GetSavePath()),
-		SaveKey:      file.GetSavePath(),
+		Scope:        fmt.Sprintf("%s:%s", handler.Policy.BucketName, fileInfo.SavePath),
+		SaveKey:      fileInfo.SavePath,
 		ForceSaveKey: true,
-		FsizeLimit:   int64(file.GetSize()),
+		FsizeLimit:   int64(fileInfo.Size),
 	}
 	// 是否开启了MIMEType限制
 	if handler.Policy.OptionsSerialized.MimeType != "" {
@@ -177,7 +178,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	}
 
 	// 开始上传
-	err = formUploader.Put(ctx, &ret, token.Token, file.GetSavePath(), file, int64(file.GetSize()), &putExtra)
+	err = formUploader.Put(ctx, &ret, token.Token, fileInfo.SavePath, file, int64(fileInfo.Size), &putExtra)
 	if err != nil {
 		return err
 	}
@@ -285,7 +286,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 		CallbackURL:      apiURL.String(),
 		CallbackBody:     `{"name":"$(fname)","source_name":"$(key)","size":$(fsize),"pic_info":"$(imageInfo.width),$(imageInfo.height)"}`,
 		CallbackBodyType: "application/json",
-		SaveKey:          file.GetSavePath(),
+		SaveKey:          file.Info().SavePath,
 		ForceSaveKey:     true,
 		FsizeLimit:       int64(handler.Policy.MaxSize),
 	}
diff --git a/pkg/filesystem/driver/remote/handler.go b/pkg/filesystem/driver/remote/handler.go
index 2120ff0..c2d150f 100644
--- a/pkg/filesystem/driver/remote/handler.go
+++ b/pkg/filesystem/driver/remote/handler.go
@@ -140,11 +140,12 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	credentialTTL := model.GetIntSetting("upload_credential_timeout", 3600)
 
 	// 生成上传策略
+	fileInfo := file.Info()
 	policy := serializer.UploadPolicy{
-		SavePath:   path.Dir(file.GetSavePath()),
-		FileName:   path.Base(file.GetSavePath()),
+		SavePath:   path.Dir(fileInfo.SavePath),
+		FileName:   path.Base(fileInfo.FileName),
 		AutoRename: false,
-		MaxSize:    file.GetSize(),
+		MaxSize:    fileInfo.Size,
 	}
 	credential, err := handler.getUploadCredential(ctx, policy, int64(credentialTTL))
 	if err != nil {
@@ -152,11 +153,11 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 	}
 
 	// 对文件名进行URLEncode
-	fileName := url.QueryEscape(path.Base(file.GetSavePath()))
+	fileName := url.QueryEscape(path.Base(fileInfo.SavePath))
 
 	// 决定是否要禁用文件覆盖
 	overwrite := "true"
-	if file.GetMode() != fsctx.Create {
+	if fileInfo.Mode != fsctx.Create {
 		overwrite = "false"
 	}
 
@@ -170,7 +171,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 			"X-Cr-FileName":  {fileName},
 			"X-Cr-Overwrite": {overwrite},
 		}),
-		request.WithContentLength(int64(file.GetSize())),
+		request.WithContentLength(int64(fileInfo.Size)),
 		request.WithTimeout(time.Duration(0)),
 		request.WithMasterMeta(),
 		request.WithSlaveMeta(handler.Policy.AccessKey),
diff --git a/pkg/filesystem/driver/s3/handler.go b/pkg/filesystem/driver/s3/handler.go
index 3671a86..da3ae4a 100644
--- a/pkg/filesystem/driver/s3/handler.go
+++ b/pkg/filesystem/driver/s3/handler.go
@@ -206,7 +206,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 
 	uploader := s3manager.NewUploader(handler.sess)
 
-	dst := file.GetSavePath()
+	dst := file.Info().SavePath
 	_, err := uploader.Upload(&s3manager.UploadInput{
 		Bucket: &handler.Policy.BucketName,
 		Key:    &dst,
@@ -331,11 +331,12 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	apiURL := siteURL.ResolveReference(apiBaseURI)
 
 	// 上传策略
+	savePath := file.Info().SavePath
 	putPolicy := UploadPolicy{
 		Expiration: time.Now().UTC().Add(time.Duration(ttl) * time.Second).Format(time.RFC3339),
 		Conditions: []interface{}{
 			map[string]string{"bucket": handler.Policy.BucketName},
-			[]string{"starts-with", "$key", file.GetSavePath()},
+			[]string{"starts-with", "$key", savePath},
 			[]string{"starts-with", "$success_action_redirect", apiURL.String()},
 			[]string{"starts-with", "$name", ""},
 			[]string{"starts-with", "$Content-Type", ""},
@@ -349,7 +350,7 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	}
 
 	// 生成上传凭证
-	return handler.getUploadCredential(ctx, putPolicy, apiURL, file.GetSavePath())
+	return handler.getUploadCredential(ctx, putPolicy, apiURL, savePath)
 }
 
 // Meta 获取文件信息
diff --git a/pkg/filesystem/driver/shadow/slaveinmaster/handler.go b/pkg/filesystem/driver/shadow/slaveinmaster/handler.go
index ef6d640..988e5b9 100644
--- a/pkg/filesystem/driver/shadow/slaveinmaster/handler.go
+++ b/pkg/filesystem/driver/shadow/slaveinmaster/handler.go
@@ -57,7 +57,7 @@ func (d *Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 
 	req := serializer.SlaveTransferReq{
 		Src:    src,
-		Dst:    file.GetSavePath(),
+		Dst:    file.Info().SavePath,
 		Policy: d.policy,
 	}
 
diff --git a/pkg/filesystem/driver/upyun/handler.go b/pkg/filesystem/driver/upyun/handler.go
index 1d5f55d..dac0679 100644
--- a/pkg/filesystem/driver/upyun/handler.go
+++ b/pkg/filesystem/driver/upyun/handler.go
@@ -154,7 +154,7 @@ func (handler Driver) Put(ctx context.Context, file fsctx.FileHeader) error {
 		Password: handler.Policy.SecretKey,
 	})
 	err := up.Put(&upyun.PutObjectConfig{
-		Path:   file.GetSavePath(),
+		Path:   file.Info().SavePath,
 		Reader: file,
 	})
 
@@ -319,14 +319,15 @@ func (handler Driver) Token(ctx context.Context, ttl int64, uploadSession *seria
 	apiURL := siteURL.ResolveReference(apiBaseURI)
 
 	// 上传策略
+	fileInfo := file.Info()
 	putPolicy := UploadPolicy{
 		Bucket: handler.Policy.BucketName,
 		// TODO escape
-		SaveKey:            file.GetSavePath(),
+		SaveKey:            fileInfo.SavePath,
 		Expiration:         time.Now().Add(time.Duration(ttl) * time.Second).Unix(),
 		CallbackURL:        apiURL.String(),
-		ContentLength:      file.GetSize(),
-		ContentLengthRange: fmt.Sprintf("0,%d", file.GetSize()),
+		ContentLength:      fileInfo.Size,
+		ContentLengthRange: fmt.Sprintf("0,%d", fileInfo.Size),
 		AllowFileType:      strings.Join(handler.Policy.OptionsSerialized.FileType, ","),
 	}
 
diff --git a/pkg/filesystem/errors.go b/pkg/filesystem/errors.go
index a7b8c90..3514f90 100644
--- a/pkg/filesystem/errors.go
+++ b/pkg/filesystem/errors.go
@@ -7,19 +7,20 @@ import (
 )
 
 var (
-	ErrUnknownPolicyType       = errors.New("未知存储策略类型")
-	ErrFileSizeTooBig          = errors.New("单个文件尺寸太大")
-	ErrFileExtensionNotAllowed = errors.New("不允许上传此类型的文件")
-	ErrInsufficientCapacity    = errors.New("容量空间不足")
-	ErrIllegalObjectName       = errors.New("目标名称非法")
-	ErrClientCanceled          = errors.New("客户端取消操作")
-	ErrRootProtected           = errors.New("无法对根目录进行操作")
-	ErrInsertFileRecord        = serializer.NewError(serializer.CodeDBError, "无法插入文件记录", nil)
-	ErrFileExisted             = serializer.NewError(serializer.CodeObjectExist, "同名文件或目录已存在", nil)
-	ErrFolderExisted           = serializer.NewError(serializer.CodeObjectExist, "同名目录已存在", nil)
-	ErrPathNotExist            = serializer.NewError(404, "路径不存在", nil)
-	ErrObjectNotExist          = serializer.NewError(404, "文件不存在", nil)
-	ErrIO                      = serializer.NewError(serializer.CodeIOFailed, "无法读取文件数据", nil)
-	ErrDBListObjects           = serializer.NewError(serializer.CodeDBError, "无法列取对象记录", nil)
-	ErrDBDeleteObjects         = serializer.NewError(serializer.CodeDBError, "无法删除对象记录", nil)
+	ErrUnknownPolicyType        = errors.New("未知存储策略类型")
+	ErrFileSizeTooBig           = errors.New("单个文件尺寸太大")
+	ErrFileExtensionNotAllowed  = errors.New("不允许上传此类型的文件")
+	ErrInsufficientCapacity     = errors.New("容量空间不足")
+	ErrIllegalObjectName        = errors.New("目标名称非法")
+	ErrClientCanceled           = errors.New("客户端取消操作")
+	ErrRootProtected            = errors.New("无法对根目录进行操作")
+	ErrInsertFileRecord         = serializer.NewError(serializer.CodeDBError, "无法插入文件记录", nil)
+	ErrFileExisted              = serializer.NewError(serializer.CodeObjectExist, "同名文件或目录已存在", nil)
+	ErrFileUploadSessionExisted = serializer.NewError(serializer.CodeObjectExist, "当前目录下已经有同名文件正在上传中", nil)
+	ErrFolderExisted            = serializer.NewError(serializer.CodeObjectExist, "同名目录已存在", nil)
+	ErrPathNotExist             = serializer.NewError(404, "路径不存在", nil)
+	ErrObjectNotExist           = serializer.NewError(404, "文件不存在", nil)
+	ErrIO                       = serializer.NewError(serializer.CodeIOFailed, "无法读取文件数据", nil)
+	ErrDBListObjects            = serializer.NewError(serializer.CodeDBError, "无法列取对象记录", nil)
+	ErrDBDeleteObjects          = serializer.NewError(serializer.CodeDBError, "无法删除对象记录", nil)
 )
diff --git a/pkg/filesystem/file.go b/pkg/filesystem/file.go
index df40c0a..0edcb72 100644
--- a/pkg/filesystem/file.go
+++ b/pkg/filesystem/file.go
@@ -53,18 +53,19 @@ func (fs *FileSystem) AddFile(ctx context.Context, parent *model.Folder, file fs
 		return nil, err
 	}
 
+	uploadInfo := file.Info()
 	newFile := model.File{
-		Name:               file.GetFileName(),
-		SourceName:         file.GetSavePath(),
+		Name:               uploadInfo.FileName,
+		SourceName:         uploadInfo.SavePath,
 		UserID:             fs.User.ID,
-		Size:               file.GetSize(),
+		Size:               uploadInfo.Size,
 		FolderID:           parent.ID,
 		PolicyID:           fs.Policy.ID,
-		Hidden:             file.IsHidden(),
-		MetadataSerialized: file.GetMetadata(),
+		MetadataSerialized: uploadInfo.Metadata,
+		UploadSessionID:    uploadInfo.UploadSessionID,
 	}
 
-	if fs.Policy.IsThumbExist(file.GetFileName()) {
+	if fs.Policy.IsThumbExist(uploadInfo.FileName) {
 		newFile.PicInfo = "1,1"
 	}
 
diff --git a/pkg/filesystem/fsctx/stream.go b/pkg/filesystem/fsctx/stream.go
index 0cba29e..d141800 100644
--- a/pkg/filesystem/fsctx/stream.go
+++ b/pkg/filesystem/fsctx/stream.go
@@ -15,80 +15,62 @@ const (
 	Nop
 )
 
+// FileHeader 上传来的文件数据处理器
+type FileHeader interface {
+	io.Reader
+	io.Closer
+	Info() *UploadTaskInfo
+	SetSize(uint64)
+}
+
+type UploadTaskInfo struct {
+	Size            uint64
+	MIMEType        string
+	FileName        string
+	VirtualPath     string
+	Mode            WriteMode
+	Metadata        map[string]string
+	LastModified    *time.Time
+	SavePath        string
+	UploadSessionID *string
+}
+
 // FileStream 用户传来的文件
 type FileStream struct {
-	Mode         WriteMode
-	Hidden       bool
-	LastModified *time.Time
-	Metadata     map[string]string
-	File         io.ReadCloser
-	Size         uint64
-	VirtualPath  string
-	Name         string
-	MIMEType     string
-	SavePath     string
+	Mode            WriteMode
+	LastModified    *time.Time
+	Metadata        map[string]string
+	File            io.ReadCloser
+	Size            uint64
+	VirtualPath     string
+	Name            string
+	MIMEType        string
+	SavePath        string
+	UploadSessionID *string
 }
 
 func (file *FileStream) Read(p []byte) (n int, err error) {
 	return file.File.Read(p)
 }
 
-func (file *FileStream) GetMIMEType() string {
-	return file.MIMEType
-}
-
-func (file *FileStream) GetSize() uint64 {
-	return file.Size
-}
-
 func (file *FileStream) Close() error {
 	return file.File.Close()
 }
 
-func (file *FileStream) GetFileName() string {
-	return file.Name
-}
-
-func (file *FileStream) GetVirtualPath() string {
-	return file.VirtualPath
-}
-
-func (file *FileStream) GetMode() WriteMode {
-	return file.Mode
-}
-
-func (file *FileStream) GetMetadata() map[string]string {
-	return file.Metadata
-}
-
-func (file *FileStream) GetLastModified() *time.Time {
-	return file.LastModified
-}
-
-func (file *FileStream) IsHidden() bool {
-	return file.Hidden
-}
-
-func (file *FileStream) GetSavePath() string {
-	return file.SavePath
+func (file *FileStream) Info() *UploadTaskInfo {
+	return &UploadTaskInfo{
+		Size:            file.Size,
+		MIMEType:        file.MIMEType,
+		FileName:        file.Name,
+		VirtualPath:     file.VirtualPath,
+		Mode:            file.Mode,
+		Metadata:        file.Metadata,
+		LastModified:    file.LastModified,
+		SavePath:        file.SavePath,
+		UploadSessionID: file.UploadSessionID,
+	}
 }
 
 func (file *FileStream) SetSize(size uint64) {
 	file.Size = size
 }
-
-// FileHeader 上传来的文件数据处理器
-type FileHeader interface {
-	io.Reader
-	io.Closer
-	GetSize() uint64
-	GetMIMEType() string
-	GetFileName() string
-	GetVirtualPath() string
-	GetMode() WriteMode
-	GetMetadata() map[string]string
-	GetLastModified() *time.Time
-	IsHidden() bool
-	GetSavePath() string
-	SetSize(uint64)
-}
diff --git a/pkg/filesystem/hooks.go b/pkg/filesystem/hooks.go
index ceb86b7..42535e7 100644
--- a/pkg/filesystem/hooks.go
+++ b/pkg/filesystem/hooks.go
@@ -57,21 +57,22 @@ func (fs *FileSystem) Trigger(ctx context.Context, name string, file fsctx.FileH
 // HookSlaveUploadValidate Slave模式下对文件上传的一系列验证
 func HookSlaveUploadValidate(ctx context.Context, fs *FileSystem, file fsctx.FileHeader) error {
 	policy := ctx.Value(fsctx.UploadPolicyCtx).(serializer.UploadPolicy)
+	fileInfo := file.Info()
 
 	// 验证单文件尺寸
 	if policy.MaxSize > 0 {
-		if file.GetSize() > policy.MaxSize {
+		if fileInfo.Size > policy.MaxSize {
 			return ErrFileSizeTooBig
 		}
 	}
 
 	// 验证文件名
-	if !fs.ValidateLegalName(ctx, file.GetFileName()) {
+	if !fs.ValidateLegalName(ctx, fileInfo.FileName) {
 		return ErrIllegalObjectName
 	}
 
 	// 验证扩展名
-	if len(policy.AllowedExtension) > 0 && !IsInExtensionList(policy.AllowedExtension, file.GetFileName()) {
+	if len(policy.AllowedExtension) > 0 && !IsInExtensionList(policy.AllowedExtension, fileInfo.FileName) {
 		return ErrFileExtensionNotAllowed
 	}
 
@@ -80,18 +81,20 @@ func HookSlaveUploadValidate(ctx context.Context, fs *FileSystem, file fsctx.Fil
 
 // HookValidateFile 一系列对文件检验的集合
 func HookValidateFile(ctx context.Context, fs *FileSystem, file fsctx.FileHeader) error {
+	fileInfo := file.Info()
+
 	// 验证单文件尺寸
-	if !fs.ValidateFileSize(ctx, file.GetSize()) {
+	if !fs.ValidateFileSize(ctx, fileInfo.Size) {
 		return ErrFileSizeTooBig
 	}
 
 	// 验证文件名
-	if !fs.ValidateLegalName(ctx, file.GetFileName()) {
+	if !fs.ValidateLegalName(ctx, fileInfo.FileName) {
 		return ErrIllegalObjectName
 	}
 
 	// 验证扩展名
-	if !fs.ValidateExtension(ctx, file.GetFileName()) {
+	if !fs.ValidateExtension(ctx, fileInfo.FileName) {
 		return ErrFileExtensionNotAllowed
 	}
 
@@ -113,7 +116,7 @@ func HookResetPolicy(ctx context.Context, fs *FileSystem, file fsctx.FileHeader)
 // HookValidateCapacity 验证并扣除用户容量，包含数据库操作
 func HookValidateCapacity(ctx context.Context, fs *FileSystem, file fsctx.FileHeader) error {
 	// 验证并扣除容量
-	if !fs.ValidateCapacity(ctx, file.GetSize()) {
+	if !fs.ValidateCapacity(ctx, file.Info().Size) {
 		return ErrInsufficientCapacity
 	}
 	return nil
@@ -122,7 +125,7 @@ func HookValidateCapacity(ctx context.Context, fs *FileSystem, file fsctx.FileHe
 // HookValidateCapacityWithoutIncrease 验证用户容量，不扣除
 func HookValidateCapacityWithoutIncrease(ctx context.Context, fs *FileSystem, file fsctx.FileHeader) error {
 	// 验证并扣除容量
-	if fs.User.GetRemainingCapacity() < file.GetSize() {
+	if fs.User.GetRemainingCapacity() < file.Info().Size {
 		return ErrInsufficientCapacity
 	}
 	return nil
@@ -131,22 +134,23 @@ func HookValidateCapacityWithoutIncrease(ctx context.Context, fs *FileSystem, fi
 // HookChangeCapacity 根据原有文件和新文件的大小更新用户容量
 func HookChangeCapacity(ctx context.Context, fs *FileSystem, newFile fsctx.FileHeader) error {
 	originFile := ctx.Value(fsctx.FileModelCtx).(model.File)
+	newFileSize := newFile.Info().Size
 
-	if newFile.GetSize() > originFile.Size {
-		if !fs.ValidateCapacity(ctx, newFile.GetSize()-originFile.Size) {
+	if newFileSize > originFile.Size {
+		if !fs.ValidateCapacity(ctx, newFileSize-originFile.Size) {
 			return ErrInsufficientCapacity
 		}
 		return nil
 	}
 
-	fs.User.DeductionStorage(originFile.Size - newFile.GetSize())
+	fs.User.DeductionStorage(originFile.Size - newFileSize)
 	return nil
 }
 
 // HookDeleteTempFile 删除已保存的临时文件
 func HookDeleteTempFile(ctx context.Context, fs *FileSystem, file fsctx.FileHeader) error {
 	// 删除临时文件
-	_, err := fs.Handler.Delete(ctx, []string{file.GetSavePath()})
+	_, err := fs.Handler.Delete(ctx, []string{file.Info().SavePath})
 	if err != nil {
 		util.Log().Warning("无法清理上传临时文件，%s", err)
 	}
@@ -159,7 +163,7 @@ func HookCleanFileContent(ctx context.Context, fs *FileSystem, file fsctx.FileHe
 	// 清空内容
 	return fs.Handler.Put(ctx, &fsctx.FileStream{
 		File:     ioutil.NopCloser(strings.NewReader("")),
-		SavePath: file.GetSavePath(),
+		SavePath: file.Info().SavePath,
 		Size:     0,
 	})
 }
@@ -192,7 +196,7 @@ func HookGiveBackCapacity(ctx context.Context, fs *FileSystem, file fsctx.FileHe
 	// 归还用户容量
 	res := true
 	once.Do(func() {
-		res = fs.User.DeductionStorage(file.GetSize())
+		res = fs.User.DeductionStorage(file.Info().Size)
 	})
 
 	if !res {
@@ -221,7 +225,7 @@ func GenericAfterUpdate(ctx context.Context, fs *FileSystem, newFile fsctx.FileH
 
 	fs.SetTargetFile(&[]model.File{originFile})
 
-	err := originFile.UpdateSize(newFile.GetSize())
+	err := originFile.UpdateSize(newFile.Info().Size)
 	if err != nil {
 		return err
 	}
@@ -244,11 +248,12 @@ func GenericAfterUpdate(ctx context.Context, fs *FileSystem, newFile fsctx.FileH
 // SlaveAfterUpload Slave模式下上传完成钩子
 func SlaveAfterUpload(ctx context.Context, fs *FileSystem, fileHeader fsctx.FileHeader) error {
 	policy := ctx.Value(fsctx.UploadPolicyCtx).(serializer.UploadPolicy)
+	fileInfo := fileHeader.Info()
 
 	// 构造一个model.File，用于生成缩略图
 	file := model.File{
-		Name:       fileHeader.GetFileName(),
-		SourceName: fileHeader.GetSavePath(),
+		Name:       fileInfo.FileName,
+		SourceName: fileInfo.SavePath,
 	}
 	fs.GenerateThumbnail(ctx, &file)
 
@@ -261,20 +266,19 @@ func SlaveAfterUpload(ctx context.Context, fs *FileSystem, fileHeader fsctx.File
 		Name:       file.Name,
 		SourceName: file.SourceName,
 		PicInfo:    file.PicInfo,
-		Size:       fileHeader.GetSize(),
+		Size:       fileInfo.Size,
 	}
 	return request.RemoteCallback(policy.CallbackURL, callbackBody)
 }
 
 // GenericAfterUpload 文件上传完成后，包含数据库操作
 func GenericAfterUpload(ctx context.Context, fs *FileSystem, fileHeader fsctx.FileHeader) error {
-	// 文件存放的虚拟路径
-	virtualPath := fileHeader.GetVirtualPath()
+	fileInfo := fileHeader.Info()
 
 	// 检查路径是否存在，不存在就创建
-	isExist, folder := fs.IsPathExist(virtualPath)
+	isExist, folder := fs.IsPathExist(fileInfo.VirtualPath)
 	if !isExist {
-		newFolder, err := fs.CreateDirectory(ctx, virtualPath)
+		newFolder, err := fs.CreateDirectory(ctx, fileInfo.VirtualPath)
 		if err != nil {
 			return err
 		}
@@ -282,10 +286,14 @@ func GenericAfterUpload(ctx context.Context, fs *FileSystem, fileHeader fsctx.Fi
 	}
 
 	// 检查文件是否存在
-	if ok, _ := fs.IsChildFileExist(
+	if ok, file := fs.IsChildFileExist(
 		folder,
-		fileHeader.GetFileName(),
+		fileInfo.FileName,
 	); ok {
+		if file.UploadSessionID != nil {
+			return ErrFileUploadSessionExisted
+		}
+
 		return ErrFileExisted
 	}
 
diff --git a/pkg/filesystem/manage.go b/pkg/filesystem/manage.go
index 5feb0d1..d502f3a 100644
--- a/pkg/filesystem/manage.go
+++ b/pkg/filesystem/manage.go
@@ -350,7 +350,7 @@ func (fs *FileSystem) listObjects(ctx context.Context, parent string, files []mo
 			}
 		}
 
-		if !file.Hidden {
+		if file.UploadSessionID == nil {
 			newFile := serializer.Object{
 				ID:            hashid.HashID(file.ID, hashid.FileID),
 				Name:          file.Name,
diff --git a/pkg/filesystem/upload.go b/pkg/filesystem/upload.go
index e304651..15e5146 100644
--- a/pkg/filesystem/upload.go
+++ b/pkg/filesystem/upload.go
@@ -69,10 +69,11 @@ func (fs *FileSystem) Upload(ctx context.Context, file *fsctx.FileStream) (err e
 		return err
 	}
 
+	fileInfo := file.Info()
 	util.Log().Info(
 		"新文件PUT:%s , 大小:%d, 上传者:%s",
-		file.GetFileName(),
-		file.GetSize(),
+		fileInfo.FileName,
+		fileInfo.Size,
 		fs.User.Nick,
 	)
 
@@ -82,15 +83,17 @@ func (fs *FileSystem) Upload(ctx context.Context, file *fsctx.FileStream) (err e
 // GenerateSavePath 生成要存放文件的路径
 // TODO 完善测试
 func (fs *FileSystem) GenerateSavePath(ctx context.Context, file fsctx.FileHeader) string {
+	fileInfo := file.Info()
+
 	if fs.User.Model.ID != 0 {
 		return path.Join(
 			fs.Policy.GeneratePath(
 				fs.User.Model.ID,
-				file.GetVirtualPath(),
+				fileInfo.VirtualPath,
 			),
 			fs.Policy.GenerateFileName(
 				fs.User.Model.ID,
-				file.GetFileName(),
+				fileInfo.FileName,
 			),
 		)
 	}
@@ -112,7 +115,7 @@ func (fs *FileSystem) GenerateSavePath(ctx context.Context, file fsctx.FileHeade
 		),
 		anonymousPolicy.GenerateFileName(
 			0,
-			file.GetFileName(),
+			fileInfo.FileName,
 		),
 	)
 }
@@ -156,11 +159,10 @@ func (fs *FileSystem) CreateUploadSession(ctx context.Context, file *fsctx.FileS
 
 	callbackKey := uuid.Must(uuid.NewV4()).String()
 
-	// 创建隐藏的文件，同时校验文件信息
+	// 创建占位的文件，同时校验文件信息
 	file.Mode = fsctx.Nop
-	file.Hidden = true
-	file.Metadata = map[string]string{
-		UploadSessionMetaKey: callbackKey,
+	if callbackKey != "" {
+		file.UploadSessionID = &callbackKey
 	}
 
 	fs.Use("BeforeUpload", HookValidateFile)
@@ -179,7 +181,7 @@ func (fs *FileSystem) CreateUploadSession(ctx context.Context, file *fsctx.FileS
 		Size:         file.Size,
 		SavePath:     file.SavePath,
 		ChunkSize:    fs.Policy.OptionsSerialized.ChunkSize,
-		LastModified: file.GetLastModified(),
+		LastModified: file.LastModified,
 	}
 
 	// 获取上传凭证