83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
package http
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import (
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"net/http"
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"path/filepath"
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"strings"
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libErrors "github.com/filebrowser/filebrowser/v2/errors"
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"github.com/filebrowser/filebrowser/v2/files"
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)
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var withHashFile = func(fn handleFunc) handleFunc {
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return func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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id, rootName, path := ifPathWithName(r)
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link, err := d.store.Share.GetByHash(id)
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if err != nil {
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return errToStatus(err), err
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}
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if rootName != "" && filepath.Base(rootName) != filepath.Base(link.Path) {
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return errToStatus(libErrors.ErrNotExist), libErrors.ErrNotExist
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}
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user, err := d.store.Users.Get(d.server.Root, link.UserID)
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if err != nil {
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return errToStatus(err), err
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}
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d.user = user
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file, err := files.NewFileInfo(files.FileOptions{
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Fs: d.user.Fs,
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Path: filepath.Join(link.Path, path),
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Modify: d.user.Perm.Modify,
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Expand: true,
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Checker: d,
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})
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if err != nil {
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return errToStatus(err), err
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}
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d.raw = file
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return fn(w, r, d)
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}
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}
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// ref to https://github.com/filebrowser/filebrowser/pull/727
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// `/api/public/dl/MEEuZK-v/file-name.txt` for old browsers to save file with correct name
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func ifPathWithName(r *http.Request) (id, rootName, path string) {
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pathElements := strings.Split(r.URL.Path, "/")
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// prevent maliciously constructed parameters like `/api/public/dl/XZzCDnK2_not_exists_hash_name`
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// len(pathElements) will be 1, and golang will panic `runtime error: index out of range`
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switch len(pathElements) {
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case 1:
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return r.URL.Path, "", ""
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case 2: //nolint: mnd
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return pathElements[0], pathElements[1], ""
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default:
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return pathElements[0], pathElements[1], strings.Join(pathElements[2:], "/")
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}
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}
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var publicShareHandler = withHashFile(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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file := d.raw.(*files.FileInfo)
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if file.IsDir {
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file.Listing.Sorting = files.Sorting{By: "name", Asc: false}
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file.Listing.ApplySort()
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return renderJSON(w, r, file)
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}
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return renderJSON(w, r, file)
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})
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var publicDlHandler = withHashFile(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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file := d.raw.(*files.FileInfo)
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if !file.IsDir {
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return rawFileHandler(w, r, file)
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}
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return rawDirHandler(w, r, d, file)
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})
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