minio/pkg/user/user.go
2015-12-07 14:13:54 -08:00

66 lines
1.8 KiB
Go

/*
* Minio Cloud Storage, (C) 2015 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 user
import (
"os"
"os/user"
"runtime"
"strconv"
)
// Current is a portable implementation to determine the current user.
// Golang's user.Current does not work reliably under docker or 32bit linux
//
// Two issues this code handles :-
//
// Docker Container - For static binaries NSS library will not be a part of the static binary hence user.Current() fails.
// Linux Intel 32 bit - CGO is not enabled so it will not link with NSS library.
//
func Current() (*user.User, error) {
if os.Getenv("DOCKERIMAGE") == "1" {
wd, err := os.Getwd()
if err != nil {
return nil, err
}
return &user.User{Uid: "0", Gid: "0", Username: "root", Name: "root", HomeDir: wd}, nil
}
if runtime.GOARCH == "386" && runtime.GOOS == "linux" {
return &user.User{
Uid: strconv.Itoa(os.Getuid()),
Gid: strconv.Itoa(os.Getgid()),
Username: os.Getenv("USER"),
Name: os.Getenv("USER"),
HomeDir: os.Getenv("HOME"),
}, nil
}
user, e := user.Current()
if e != nil {
return nil, e
}
return user, nil
}
// HomeDir - return current home directory.
func HomeDir() (string, error) {
user, err := Current()
if err != nil {
return "", err
}
return user.HomeDir, nil
}