alist/internal/offline_download/http/client.go

86 lines
1.8 KiB
Go

package http
import (
"fmt"
"github.com/alist-org/alist/v3/internal/model"
"github.com/alist-org/alist/v3/internal/offline_download/tool"
"github.com/alist-org/alist/v3/pkg/utils"
"net/http"
"net/url"
"os"
"path"
"path/filepath"
)
type SimpleHttp struct {
client http.Client
}
func (s SimpleHttp) Name() string {
return "SimpleHttp"
}
func (s SimpleHttp) Items() []model.SettingItem {
return nil
}
func (s SimpleHttp) Init() (string, error) {
return "ok", nil
}
func (s SimpleHttp) IsReady() bool {
return true
}
func (s SimpleHttp) AddURL(args *tool.AddUrlArgs) (string, error) {
panic("should not be called")
}
func (s SimpleHttp) Remove(task *tool.DownloadTask) error {
panic("should not be called")
}
func (s SimpleHttp) Status(task *tool.DownloadTask) (*tool.Status, error) {
panic("should not be called")
}
func (s SimpleHttp) Run(task *tool.DownloadTask) error {
u := task.Url
// parse url
_u, err := url.Parse(u)
if err != nil {
return err
}
req, err := http.NewRequestWithContext(task.Ctx(), http.MethodGet, u, nil)
if err != nil {
return err
}
resp, err := s.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode >= 400 {
return fmt.Errorf("http status code %d", resp.StatusCode)
}
filename := path.Base(_u.Path)
if n, err := parseFilenameFromContentDisposition(resp.Header.Get("Content-Disposition")); err == nil {
filename = n
}
// save to temp dir
_ = os.MkdirAll(task.TempDir, os.ModePerm)
filePath := filepath.Join(task.TempDir, filename)
file, err := os.Create(filePath)
if err != nil {
return err
}
defer file.Close()
fileSize := resp.ContentLength
err = utils.CopyWithCtx(task.Ctx(), file, resp.Body, fileSize, task.SetProgress)
return err
}
func init() {
tool.Tools.Add(&SimpleHttp{})
}