feat: add param to disable img resizing

cmd/root.go

@@ -59,6 +59,8 @@ func addServerFlags(flags *pflag.FlagSet) {
 	flags.String("socket", "", "socket to listen to (cannot be used with address, port, cert nor key flags)")
 	flags.StringP("baseurl", "b", "", "base url")
 	flags.Int("img-processors", 4, "image processors count")
+	flags.Bool("disable-thumbnails", false, "disable image thumbnails")
+	flags.Bool("disable-preview-resize", false, "disable resize of image previews")
 }
 
 var rootCmd = &cobra.Command{
@@ -216,6 +218,12 @@ func getRunParams(flags *pflag.FlagSet, st *storage.Storage) *settings.Server {
 		server.Socket = ""
 	}
 
+	_, disableThumbnails := getParamB(flags, "disable-thumbnails")
+	server.EnableThumbnails = !disableThumbnails
+
+	_, disablePreviewResize := getParamB(flags, "disable-preview-resize")
+	server.ResizePreview = !disablePreviewResize
+
 	return server
 }
 

frontend/src/components/files/ListingItem.vue

@@ -13,7 +13,7 @@
   :aria-label="name"
   :aria-selected="isSelected">
     <div>
-      <img v-if="type==='image'" v-lazy="thumbnailUrl">
+      <img v-if="type==='image' && isThumbsEnabled" v-lazy="thumbnailUrl">
       <i v-else class="material-icons">{{ icon }}</i>
     </div>
 
@@ -31,7 +31,7 @@
 </template>
 
 <script>
-import { baseURL } from '@/utils/constants'
+import { baseURL, enableThumbs } from '@/utils/constants'
 import { mapMutations, mapGetters, mapState } from 'vuex'
 import filesize from 'filesize'
 import moment from 'moment'
@@ -76,6 +76,9 @@ export default {
     thumbnailUrl () {
       const path = this.url.replace(/^\/files\//, '')
       return `${baseURL}/api/preview/thumb/${path}?auth=${this.jwt}&inline=true`
+    },
+    isThumbsEnabled () {
+      return enableThumbs
     }
   },
   methods: {

frontend/src/utils/constants.js

@@ -11,6 +11,7 @@ const noAuth = window.FileBrowser.NoAuth
 const authMethod = window.FileBrowser.AuthMethod
 const loginPage = window.FileBrowser.LoginPage
 const theme = window.FileBrowser.Theme
+const enableThumbs = window.FileBrowser.EnableThumbs
 
 export {
   name,
@@ -24,5 +25,6 @@ export {
   noAuth,
   authMethod,
   loginPage,
-  theme
+  theme,
+  enableThumbs
 }

http/http.go

@@ -59,7 +59,8 @@ func NewHandler(imgSvc ImgService, store *storage.Storage, server *settings.Serv
 	api.Handle("/settings", monkey(settingsPutHandler, "")).Methods("PUT")
 
 	api.PathPrefix("/raw").Handler(monkey(rawHandler, "/api/raw")).Methods("GET")
-	api.PathPrefix("/preview/{size}/{path:.*}").Handler(monkey(previewHandler(imgSvc), "/api/preview")).Methods("GET")
+	api.PathPrefix("/preview/{size}/{path:.*}").
+		Handler(monkey(previewHandler(imgSvc, server.EnableThumbnails, server.ResizePreview), "/api/preview")).Methods("GET")
 	api.PathPrefix("/command").Handler(monkey(commandsHandler, "/api/command")).Methods("GET")
 	api.PathPrefix("/search").Handler(monkey(searchHandler, "/api/search")).Methods("GET")
 

http/preview.go

@@ -24,7 +24,7 @@ type ImgService interface {
 	Resize(ctx context.Context, file afero.File, width, height int, out io.Writer, options ...img.Option) error
 }
 
-func previewHandler(imgSvc ImgService) handleFunc {
+func previewHandler(imgSvc ImgService, enableThumbnails, resizePreview bool) handleFunc {
 	return withUser(func(w http.ResponseWriter, r *http.Request, d *data) (int, error) {
 		if !d.user.Perm.Download {
 			return http.StatusAccepted, nil
@@ -50,14 +50,15 @@ func previewHandler(imgSvc ImgService) handleFunc {
 
 		switch file.Type {
 		case "image":
-			return handleImagePreview(imgSvc, w, r, file, size)
+			return handleImagePreview(imgSvc, w, r, file, size, enableThumbnails, resizePreview)
 		default:
 			return http.StatusNotImplemented, fmt.Errorf("can't create preview for %s type", file.Type)
 		}
 	})
 }
 
-func handleImagePreview(imgSvc ImgService, w http.ResponseWriter, r *http.Request, file *files.FileInfo, size string) (int, error) {
+func handleImagePreview(imgSvc ImgService, w http.ResponseWriter, r *http.Request,
+	file *files.FileInfo, size string, enableThumbnails, resizePreview bool) (int, error) {
 	format, err := imgSvc.FormatFromExtension(file.Extension)
 	if err != nil {
 		// Unsupported extensions directly return the raw data
@@ -73,30 +74,26 @@ func handleImagePreview(imgSvc ImgService, w http.ResponseWriter, r *http.Reques
 	}
 	defer fd.Close()
 
-	if format == img.FormatGif && size == sizeBig {
-		if _, err := rawFileHandler(w, r, file); err != nil {
-			return errToStatus(err), err
-		}
-		return 0, nil
-	}
-
 	var (
 		width   int
 		height  int
 		options []img.Option
 	)
 
-	switch size {
-	case sizeBig:
+	switch {
+	case size == sizeBig && resizePreview && format != img.FormatGif:
 		width = 1080
 		height = 1080
-		options = append(options, img.WithHighPriority())
-	case sizeThumb:
+		options = append(options, img.WithMode(img.ResizeModeFit), img.WithQuality(img.QualityMedium))
+	case size == sizeThumb && enableThumbnails:
 		width = 128
 		height = 128
-		options = append(options, img.WithMode(img.ResizeModeFill), img.WithQuality(img.QualityLow))
+		options = append(options, img.WithMode(img.ResizeModeFill), img.WithQuality(img.QualityLow), img.WithFormat(img.FormatJpeg))
 	default:
-		return http.StatusBadRequest, fmt.Errorf("unsupported preview size %s", size)
+		if _, err := rawFileHandler(w, r, file); err != nil {
+			return errToStatus(err), err
+		}
+		return 0, nil
 	}
 
 	if err := imgSvc.Resize(r.Context(), fd, width, height, w, options...); err != nil {

http/static.go

@@ -39,6 +39,7 @@ func handleWithStaticData(w http.ResponseWriter, _ *http.Request, d *data, box *
 		"CSS":             false,
 		"ReCaptcha":       false,
 		"Theme":           d.settings.Branding.Theme,
+		"EnableThumbs":    d.server.EnableThumbnails,
 	}
 
 	if d.settings.Branding.Files != "" {

settings/settings.go

@@ -38,6 +38,8 @@ type Server struct {
 	Port             string `json:"port"`
 	Address          string `json:"address"`
 	Log              string `json:"log"`
+	EnableThumbnails bool   `json:"enableThumbnails"`
+	ResizePreview    bool   `json:"resizePreview"`
 }
 
 // Clean cleans any variables that might need cleaning.