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minio/pkg/auth/config.go

139 lines
3.2 KiB

/*
* 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 auth
import (
"os"
"os/user"
"path/filepath"
"github.com/minio/minio/pkg/probe"
"github.com/minio/minio/pkg/quick"
)
// User container
type User struct {
Name string
AccessKeyID string
SecretAccessKey string
}
// Config auth keys
type Config struct {
Version string
Users map[string]*User
}
// getAuthConfigPath get users config path
func getAuthConfigPath() (string, *probe.Error) {
if customConfigPath != "" {
return customConfigPath, nil
}
u, err := user.Current()
if err != nil {
return "", probe.NewError(err)
}
authConfigPath := filepath.Join(u.HomeDir, ".minio")
return authConfigPath, nil
}
// createAuthConfigPath create users config path
func createAuthConfigPath() *probe.Error {
authConfigPath, err := getAuthConfigPath()
if err != nil {
return err.Trace()
}
if err := os.MkdirAll(authConfigPath, 0700); err != nil {
return probe.NewError(err)
}
return nil
}
// isAuthConfigFileExists is auth config file exists?
func isAuthConfigFileExists() bool {
if _, err := os.Stat(mustGetAuthConfigFile()); err != nil {
if os.IsNotExist(err) {
return false
}
panic(err)
}
return true
}
// mustGetAuthConfigFile always get users config file, if not panic
func mustGetAuthConfigFile() string {
authConfigFile, err := getAuthConfigFile()
if err != nil {
panic(err)
}
return authConfigFile
}
// getAuthConfigFile get users config file
func getAuthConfigFile() (string, *probe.Error) {
authConfigPath, err := getAuthConfigPath()
if err != nil {
return "", err.Trace()
}
return filepath.Join(authConfigPath, "users.json"), nil
}
// customConfigPath not accessed from outside only allowed through get/set methods
var customConfigPath string
// SetAuthConfigPath - set custom auth config path
func SetAuthConfigPath(configPath string) {
customConfigPath = configPath
}
// SaveConfig save auth config
func SaveConfig(a *Config) *probe.Error {
authConfigFile, err := getAuthConfigFile()
if err != nil {
return err.Trace()
}
qc, err := quick.New(a)
if err != nil {
return err.Trace()
}
if err := qc.Save(authConfigFile); err != nil {
return err.Trace()
}
return nil
}
// LoadConfig load auth config
func LoadConfig() (*Config, *probe.Error) {
authConfigFile, err := getAuthConfigFile()
if err != nil {
return nil, err.Trace()
}
if _, err := os.Stat(authConfigFile); err != nil {
return nil, probe.NewError(err)
}
a := &Config{}
a.Version = "0.0.1"
a.Users = make(map[string]*User)
qc, err := quick.New(a)
if err != nil {
return nil, err.Trace()
}
if err := qc.Load(authConfigFile); err != nil {
return nil, err.Trace()
}
return qc.Data().(*Config), nil
}