minio/fs-utils.go
2016-04-16 16:25:53 -07:00

57 lines
1.5 KiB
Go

/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* 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 main
import (
"regexp"
"unicode/utf8"
)
// validVolname regexp.
var validVolname = regexp.MustCompile(`^.{3,63}$`)
// isValidVolname verifies a volname name in accordance with object
// layer requirements.
func isValidVolname(volname string) bool {
return validVolname.MatchString(volname)
}
// Keeping this as lower bound value supporting Linux, Darwin and Windows operating systems.
const pathMax = 4096
// isValidPath verifies if a path name is in accordance with FS limitations.
func isValidPath(path string) bool {
// TODO: Make this FSType or Operating system specific.
if len(path) > pathMax || len(path) == 0 {
return false
}
if !utf8.ValidString(path) {
return false
}
return true
}
// isValidPrefix verifies where the prefix is a valid path.
func isValidPrefix(prefix string) bool {
// Prefix can be empty.
if prefix == "" {
return true
}
// Verify if prefix is a valid path.
return isValidPath(prefix)
}