Remove local load restrictions.

pkg/loader/loadrestrictions.go

@@ -0,0 +1,48 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package loader
+
+import (
+	"fmt"
+
+	"sigs.k8s.io/kustomize/pkg/fs"
+)
+
+type LoadRestrictorFunc func(
+	fs.FileSystem, fs.ConfirmedDir, string) (string, error)
+
+func RestrictionRootOnly(
+	fSys fs.FileSystem, root fs.ConfirmedDir, path string) (string, error) {
+	d, f, err := fSys.CleanedAbs(path)
+	if err != nil {
+		return "", err
+	}
+	if f == "" {
+		return "", fmt.Errorf("'%s' must be a file", path)
+	}
+	if !d.HasPrefix(root) {
+		return "", fmt.Errorf(
+			"security; file '%s' is not in or below '%s'",
+			path, root)
+	}
+	return d.Join(f), nil
+}
+
+func RestrictionNone(
+	_ fs.FileSystem, _ fs.ConfirmedDir, path string) (string, error) {
+	return path, nil
+}