pikpak: add option to use original file links - fixes rclone#8246

backend/pikpak/pikpak.go

@@ -213,6 +213,11 @@ Fill in for rclone to use a non root folder as its starting point.
 			Default:  false,
 			Help:     "Only show files that are in the trash.\n\nThis will show trashed files in their original directory structure.",
 			Advanced: true,
+		}, {
+			Name:     "no_media_link",
+			Default:  false,
+			Help:     "Use original file links instead of media links.\n\nThis avoids issues caused by invalid media links, but may reduce download speeds.",
+			Advanced: true,
 		}, {
 			Name:     "hash_memory_limit",
 			Help:     "Files bigger than this will be cached on disk to calculate hash if required.",
@@ -286,6 +291,7 @@ type Options struct {
 	RootFolderID        string               `config:"root_folder_id"`
 	UseTrash            bool                 `config:"use_trash"`
 	TrashedOnly         bool                 `config:"trashed_only"`
+	NoMediaLink         bool                 `config:"no_media_link"`
 	HashMemoryThreshold fs.SizeSuffix        `config:"hash_memory_limit"`
 	ChunkSize           fs.SizeSuffix        `config:"chunk_size"`
 	UploadConcurrency   int                  `config:"upload_concurrency"`
@@ -1575,15 +1581,14 @@ func (o *Object) setMetaData(info *api.File) (err error) {
 	o.md5sum = info.Md5Checksum
 	if info.Links.ApplicationOctetStream != nil {
 		o.link = info.Links.ApplicationOctetStream
-		if fid := parseFileID(o.link.URL); fid != "" {
-			for mid, media := range info.Medias {
-				if media.Link == nil {
-					continue
-				}
-				if mfid := parseFileID(media.Link.URL); fid == mfid {
-					fs.Debugf(o, "Using a media link from Medias[%d]", mid)
-					o.link = media.Link
-					break
+		if !o.fs.opt.NoMediaLink {
+			if fid := parseFileID(o.link.URL); fid != "" {
+				for _, media := range info.Medias {
+					if media.Link != nil && parseFileID(media.Link.URL) == fid {
+						fs.Debugf(o, "Using a media link")
+						o.link = media.Link
+						break
+					}
 				}
 			}
 		}