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package aria2
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import (
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"context"
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model "github.com/HFO4/cloudreve/models"
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"github.com/HFO4/cloudreve/pkg/aria2/rpc"
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"github.com/HFO4/cloudreve/pkg/util"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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)
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// RPCService 通过RPC服务的Aria2任务管理器
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type RPCService struct {
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options *clientOptions
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Caller rpc.Client
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}
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type clientOptions struct {
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Options map[string]interface{} // 创建下载时额外添加的设置
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}
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// Init 初始化
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func (client *RPCService) Init(server, secret string, timeout int, options map[string]interface{}) error {
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// 客户端已存在，则关闭先前连接
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if client.Caller != nil {
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client.Caller.Close()
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}
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client.options = &clientOptions{
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Options: options,
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}
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caller, err := rpc.New(context.Background(), server, secret, time.Duration(timeout)*time.Second,
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EventNotifier)
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client.Caller = caller
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return err
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}
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// Status 查询下载状态
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func (client *RPCService) Status(task *model.Download) (rpc.StatusInfo, error) {
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res, err := client.Caller.TellStatus(task.GID)
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if err != nil {
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// 失败后重试
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util.Log().Debug("无法获取离线下载状态，%s，10秒钟后重试", err)
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time.Sleep(time.Duration(10) * time.Second)
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res, err = client.Caller.TellStatus(task.GID)
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}
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return res, err
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}
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// Cancel 取消下载
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func (client *RPCService) Cancel(task *model.Download) error {
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// 取消下载任务
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_, err := client.Caller.Remove(task.GID)
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if err != nil {
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util.Log().Warning("无法取消离线下载任务[%s], %s", task.GID, err)
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}
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//// 删除临时文件
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//util.Log().Debug("离线下载任务[%s]已取消，1 分钟后删除临时文件", task.GID)
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//go func(task *model.Download) {
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// select {
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// case <-time.After(time.Duration(60) * time.Second):
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// err := os.RemoveAll(task.Parent)
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// if err != nil {
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// util.Log().Warning("无法删除离线下载临时目录[%s], %s", task.Parent, err)
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// }
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// }
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//}(task)
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return err
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}
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// Select 选取要下载的文件
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func (client *RPCService) Select(task *model.Download, files []int) error {
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var selected = make([]string, len(files))
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for i := 0; i < len(files); i++ {
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selected[i] = strconv.Itoa(files[i])
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}
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_, err := client.Caller.ChangeOption(task.GID, map[string]interface{}{"select-file": strings.Join(selected, ",")})
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return err
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}
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// CreateTask 创建新任务
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func (client *RPCService) CreateTask(task *model.Download, groupOptions map[string]interface{}) error {
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// 生成存储路径
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path := filepath.Join(
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model.GetSettingByName("aria2_temp_path"),
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"aria2",
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strconv.FormatInt(time.Now().UnixNano(), 10),
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)
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// 创建下载任务
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options := map[string]interface{}{
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"dir": path,
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}
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for k, v := range client.options.Options {
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options[k] = v
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}
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for k, v := range groupOptions {
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options[k] = v
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}
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gid, err := client.Caller.AddURI(task.Source, options)
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if err != nil || gid == "" {
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return err
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}
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// 保存到数据库
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task.GID = gid
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_, err = task.Create()
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if err != nil {
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return err
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}
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// 创建任务监控
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NewMonitor(task)
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return nil
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}
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