Feat: cancel aria2 download task

service/aria2/manage.go

@@ -12,6 +12,34 @@ type SelectFileService struct {
 	Indexes []int `json:"indexes" binding:"required"`
 }
 
+// DownloadTaskService 下载任务管理服务
+type DownloadTaskService struct {
+	GID string `uri:"gid" binding:"required"`
+}
+
+// Delete 取消下载任务
+func (service *DownloadTaskService) Delete(c *gin.Context) serializer.Response {
+	userCtx, _ := c.Get("user")
+	user := userCtx.(*model.User)
+
+	// 查找下载记录
+	download, err := model.GetDownloadByGid(c.Param("gid"), user.ID)
+	if err != nil {
+		return serializer.Err(serializer.CodeNotFound, "下载记录不存在", err)
+	}
+
+	if download.Status != aria2.Downloading && download.Status != aria2.Paused {
+		return serializer.Err(serializer.CodeNoPermissionErr, "此下载任务无法取消", err)
+	}
+
+	// 取消任务
+	if err := aria2.Instance.Cancel(download); err != nil {
+		return serializer.Err(serializer.CodeNotSet, "操作失败", err)
+	}
+
+	return serializer.Response{}
+}
+
 // Select 选取要下载的文件
 func (service *SelectFileService) Select(c *gin.Context) serializer.Response {
 	userCtx, _ := c.Get("user")