159 lines
3.4 KiB
Go
159 lines
3.4 KiB
Go
package http
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import (
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/url"
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"os"
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"strings"
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"github.com/filebrowser/filebrowser/v2/files"
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"github.com/filebrowser/filebrowser/v2/errors"
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"github.com/filebrowser/filebrowser/v2/fileutils"
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)
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var resourceGetHandler = withUser(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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file, err := files.NewFileInfo(files.FileOptions{
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Fs: d.user.Fs,
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Path: r.URL.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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if file.IsDir {
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file.Listing.Sorting = d.user.Sorting
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file.Listing.ApplySort()
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return renderJSON(w, r, file)
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}
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if checksum := r.URL.Query().Get("checksum"); checksum != "" {
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err := file.Checksum(checksum)
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if err == errors.ErrInvalidOption {
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return http.StatusBadRequest, nil
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} else if err != nil {
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return http.StatusInternalServerError, err
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}
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// do not waste bandwidth if we just want the checksum
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file.Content = ""
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}
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return renderJSON(w, r, file)
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})
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var resourceDeleteHandler = withUser(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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if r.URL.Path == "/" || !d.user.Perm.Delete {
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return http.StatusForbidden, nil
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}
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err := d.RunHook(func() error {
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return d.user.Fs.RemoveAll(r.URL.Path)
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}, "delete", r.URL.Path, "", d.user)
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if err != nil {
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return errToStatus(err), err
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}
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return http.StatusOK, nil
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})
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var resourcePostPutHandler = withUser(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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if !d.user.Perm.Create && r.Method == http.MethodPost {
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return http.StatusForbidden, nil
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}
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if !d.user.Perm.Modify && r.Method == http.MethodPut {
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return http.StatusForbidden, nil
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}
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defer func() {
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io.Copy(ioutil.Discard, r.Body)
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}()
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// For directories, only allow POST for creation.
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if strings.HasSuffix(r.URL.Path, "/") {
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if r.Method == http.MethodPut {
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return http.StatusMethodNotAllowed, nil
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}
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err := d.user.Fs.MkdirAll(r.URL.Path, 0775)
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return errToStatus(err), err
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}
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if r.Method == http.MethodPost && r.URL.Query().Get("override") != "true" {
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if _, err := d.user.Fs.Stat(r.URL.Path); err == nil {
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return http.StatusConflict, nil
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}
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}
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err := d.RunHook(func() error {
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file, err := d.user.Fs.OpenFile(r.URL.Path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0775)
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if err != nil {
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return err
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}
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defer file.Close()
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_, err = io.Copy(file, r.Body)
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if err != nil {
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return err
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}
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// Gets the info about the file.
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info, err := file.Stat()
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if err != nil {
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return err
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}
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etag := fmt.Sprintf(`"%x%x"`, info.ModTime().UnixNano(), info.Size())
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w.Header().Set("ETag", etag)
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return nil
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}, "upload", r.URL.Path, "", d.user)
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return errToStatus(err), err
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})
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var resourcePatchHandler = withUser(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
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src := r.URL.Path
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dst := r.URL.Query().Get("destination")
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action := r.URL.Query().Get("action")
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dst, err := url.QueryUnescape(dst)
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if err != nil {
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return errToStatus(err), err
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}
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if dst == "/" || src == "/" {
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return http.StatusForbidden, nil
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}
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switch action {
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case "copy":
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if !d.user.Perm.Create {
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return http.StatusForbidden, nil
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}
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case "rename":
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default:
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action = "rename"
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if !d.user.Perm.Rename {
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return http.StatusForbidden, nil
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}
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}
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err = d.RunHook(func() error {
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if action == "copy" {
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return fileutils.Copy(d.user.Fs, src, dst)
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}
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return d.user.Fs.Rename(src, dst)
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}, action, src, dst, d.user)
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return errToStatus(err), err
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})
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