chore(build-system): make assets default relative, serve assets from assets/public (#1309)

api/http/handler/file.go

@@ -3,35 +3,22 @@ package handler
 import (
 	"os"
 
-	"github.com/portainer/portainer"
-	httperror "github.com/portainer/portainer/http/error"
-
 	"log"
 	"net/http"
-	"path"
 	"strings"
 )
 
 // FileHandler represents an HTTP API handler for managing static files.
 type FileHandler struct {
 	http.Handler
-	Logger             *log.Logger
-	allowedDirectories map[string]bool
+	Logger *log.Logger
 }
 
 // NewFileHandler returns a new instance of FileHandler.
-func NewFileHandler(assetPath string) *FileHandler {
+func NewFileHandler(assetPublicPath string) *FileHandler {
 	h := &FileHandler{
-		Handler: http.FileServer(http.Dir(assetPath)),
+		Handler: http.FileServer(http.Dir(assetPublicPath)),
 		Logger:  log.New(os.Stderr, "", log.LstdFlags),
-		allowedDirectories: map[string]bool{
-			"/":       true,
-			"/css":    true,
-			"/js":     true,
-			"/images": true,
-			"/fonts":  true,
-			"/ico":    true,
-		},
 	}
 	return h
 }
@@ -46,17 +33,10 @@ func isHTML(acceptContent []string) bool {
 }
 
 func (handler *FileHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	requestDirectory := path.Dir(r.URL.Path)
-	if !handler.allowedDirectories[requestDirectory] {
-		httperror.WriteErrorResponse(w, portainer.ErrResourceNotFound, http.StatusNotFound, handler.Logger)
-		return
-	}
-
 	if !isHTML(r.Header["Accept"]) {
 		w.Header().Set("Cache-Control", "max-age=31536000")
 	} else {
 		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
 	}
-
 	handler.Handler.ServeHTTP(w, r)
 }