mirror of https://github.com/Xhofe/alist
101 lines
2.2 KiB
Go
101 lines
2.2 KiB
Go
package common
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/alist-org/alist/v3/internal/model"
|
|
"github.com/pkg/errors"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
var HttpClient = &http.Client{}
|
|
|
|
func Proxy(w http.ResponseWriter, r *http.Request, link *model.Link, file model.Obj) error {
|
|
// read data with native
|
|
var err error
|
|
if link.Data != nil {
|
|
defer func() {
|
|
_ = link.Data.Close()
|
|
}()
|
|
w.Header().Set("Content-Type", "application/octet-stream")
|
|
w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"; filename*=UTF-8''%s`, file.GetName(), url.QueryEscape(file.GetName())))
|
|
w.Header().Set("Content-Length", strconv.FormatInt(file.GetSize(), 10))
|
|
if link.Header != nil {
|
|
for h, val := range link.Header {
|
|
w.Header()[h] = val
|
|
}
|
|
}
|
|
if link.Status == 0 {
|
|
w.WriteHeader(http.StatusOK)
|
|
} else {
|
|
w.WriteHeader(link.Status)
|
|
}
|
|
_, err = io.Copy(w, link.Data)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
// local file
|
|
if link.FilePath != nil && *link.FilePath != "" {
|
|
f, err := os.Open(*link.FilePath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
_ = f.Close()
|
|
}()
|
|
fileStat, err := os.Stat(*link.FilePath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"; filename*=UTF-8''%s`, file.GetName(), url.QueryEscape(file.GetName())))
|
|
http.ServeContent(w, r, file.GetName(), fileStat.ModTime(), f)
|
|
return nil
|
|
} else {
|
|
req, err := http.NewRequest(r.Method, link.URL, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for h, val := range r.Header {
|
|
if strings.ToLower(h) == "authorization" {
|
|
continue
|
|
}
|
|
req.Header[h] = val
|
|
}
|
|
for h, val := range link.Header {
|
|
req.Header[h] = val
|
|
}
|
|
res, err := HttpClient.Do(req)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
_ = res.Body.Close()
|
|
}()
|
|
log.Debugf("proxy status: %d", res.StatusCode)
|
|
for h, v := range res.Header {
|
|
w.Header()[h] = v
|
|
}
|
|
w.WriteHeader(res.StatusCode)
|
|
if res.StatusCode >= 400 {
|
|
all, _ := ioutil.ReadAll(res.Body)
|
|
msg := string(all)
|
|
log.Debugln(msg)
|
|
return errors.New(msg)
|
|
}
|
|
_, err = io.Copy(w, res.Body)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
}
|