feat(alias): add DownloadConcurrency and DownloadPartSize option (#7829)

* fix(net): goroutine logic bug (AlistGo/alist#7215)

* Fix goroutine logic bug

* Fix bug

---------

Co-authored-by: hpy hs <hshpy.pengyu@gmail.com>

* perf(net): sequential and dynamic concurrency

* fix(net): incorrect error return

* feat(alias):  add `DownloadConcurrency` and `DownloadPartSize` option

* feat(net): add `ConcurrencyLimit`

* pref(net): create `chunk` on demand

* refactor

* refactor

* fix(net): `r.Closers.Add` has no effect

* refactor

---------

Co-authored-by: hpy hs <hshpy.pengyu@gmail.com>

drivers/netease_music/types.go

@@ -64,7 +64,6 @@ func (lrc *LyricObj) getLyricLink() *model.Link {
 				sr := io.NewSectionReader(reader, httpRange.Start, httpRange.Length)
 				return io.NopCloser(sr), nil
 			},
-			Closers: utils.EmptyClosers(),
 		},
 	}
 }

drivers/netease_music/upload.go

@@ -47,7 +47,7 @@ func (u *uploader) init(stream model.FileStreamer) error {
 	}
 
 	h := md5.New()
-	io.Copy(h, stream)
+	utils.CopyWithBuffer(h, stream)
 	u.md5 = hex.EncodeToString(h.Sum(nil))
 	_, err := u.file.Seek(0, io.SeekStart)
 	if err != nil {