在线预览视频时间延长到4小时 (#96)

* Update request.go

* Update req_bean.go

alidrive/req_bean.go

@@ -71,4 +71,5 @@ type OfficePreviewUrlReq struct {
 type VideoPreviewUrlReq struct {
 	DriveId     string `json:"drive_id"`
 	FileId      string `json:"file_id"`
+	ExpireSec int    `json:"expire_sec"`
 }

alidrive/request.go

@@ -114,10 +114,11 @@ func GetVideoPreviewUrl(fileId string, drive *conf.Drive) (*VideoPreviewUrlResp,
 	req := VideoPreviewUrlReq{
 		DriveId:     drive.DefaultDriveId,
 		FileId:      fileId,
+		ExpireSec: 14400,
 	}
 	var resp VideoPreviewUrlResp
 	if err := BodyToJson(url, req, &resp, drive); err != nil {
 		return nil, err
 	}
 	return &resp, nil
-}
+}