alist/internal/offline_download/aria2/aria2.go

128 lines
3.1 KiB
Go

package aria2
import (
"context"
"fmt"
"strconv"
"time"
"github.com/alist-org/alist/v3/internal/errs"
"github.com/alist-org/alist/v3/internal/conf"
"github.com/alist-org/alist/v3/internal/model"
"github.com/alist-org/alist/v3/internal/offline_download/tool"
"github.com/alist-org/alist/v3/internal/setting"
"github.com/alist-org/alist/v3/pkg/aria2/rpc"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
var notify = NewNotify()
type Aria2 struct {
client rpc.Client
}
func (a *Aria2) Run(task *tool.DownloadTask) error {
return errs.NotSupport
}
func (a *Aria2) Name() string {
return "aria2"
}
func (a *Aria2) Items() []model.SettingItem {
// aria2 settings
return []model.SettingItem{
{Key: conf.Aria2Uri, Value: "http://localhost:6800/jsonrpc", Type: conf.TypeString, Group: model.OFFLINE_DOWNLOAD, Flag: model.PRIVATE},
{Key: conf.Aria2Secret, Value: "", Type: conf.TypeString, Group: model.OFFLINE_DOWNLOAD, Flag: model.PRIVATE},
}
}
func (a *Aria2) Init() (string, error) {
a.client = nil
uri := setting.GetStr(conf.Aria2Uri)
secret := setting.GetStr(conf.Aria2Secret)
c, err := rpc.New(context.Background(), uri, secret, 4*time.Second, notify)
if err != nil {
return "", errors.Wrap(err, "failed to init aria2 client")
}
version, err := c.GetVersion()
if err != nil {
return "", errors.Wrapf(err, "failed get aria2 version")
}
a.client = c
log.Infof("using aria2 version: %s", version.Version)
return fmt.Sprintf("aria2 version: %s", version.Version), nil
}
func (a *Aria2) IsReady() bool {
return a.client != nil
}
func (a *Aria2) AddURL(args *tool.AddUrlArgs) (string, error) {
options := map[string]interface{}{
"dir": args.TempDir,
}
gid, err := a.client.AddURI([]string{args.Url}, options)
if err != nil {
return "", err
}
notify.Signals.Store(gid, args.Signal)
return gid, nil
}
func (a *Aria2) Remove(task *tool.DownloadTask) error {
_, err := a.client.Remove(task.GID)
return err
}
func (a *Aria2) Status(task *tool.DownloadTask) (*tool.Status, error) {
info, err := a.client.TellStatus(task.GID)
if err != nil {
return nil, err
}
total, err := strconv.ParseUint(info.TotalLength, 10, 64)
if err != nil {
total = 0
}
downloaded, err := strconv.ParseUint(info.CompletedLength, 10, 64)
if err != nil {
downloaded = 0
}
s := &tool.Status{
Completed: info.Status == "complete",
Err: err,
}
s.Progress = float64(downloaded) / float64(total) * 100
if len(info.FollowedBy) != 0 {
s.NewGID = info.FollowedBy[0]
notify.Signals.Delete(task.GID)
notify.Signals.Store(s.NewGID, task.Signal)
}
switch info.Status {
case "complete":
s.Completed = true
case "error":
s.Err = errors.Errorf("failed to download %s, error: %s", task.GID, info.ErrorMessage)
case "active":
s.Status = "aria2: " + info.Status
if info.Seeder == "true" {
s.Completed = true
}
case "waiting", "paused":
s.Status = "aria2: " + info.Status
case "removed":
s.Err = errors.Errorf("failed to download %s, removed", task.GID)
default:
return nil, errors.Errorf("[aria2] unknown status %s", info.Status)
}
return s, nil
}
var _ tool.Tool = (*Aria2)(nil)
func init() {
tool.Tools.Add(&Aria2{})
}