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Copy pathjwt.go
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76 lines (67 loc) · 2.21 KB
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/*
* 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 (
"bytes"
"strings"
"time"
jwtgo "github.com/dgrijalva/jwt-go"
"github.com/minio/minio/pkg/probe"
"golang.org/x/crypto/bcrypt"
)
// JWT - jwt auth backend
type JWT struct {
accessKeyID []byte
secretAccessKey []byte
}
// Default - each token expires in 10hrs.
const (
tokenExpires time.Duration = 10
)
// initJWT - initialize.
func initJWT() *JWT {
jwt := &JWT{}
// Load credentials.
config, err := loadConfigV2()
fatalIf(err.Trace("JWT"), "Unable to load configuration file.", nil)
// Save access, secret keys.
jwt.accessKeyID = []byte(config.Credentials.AccessKeyID)
jwt.secretAccessKey = []byte(config.Credentials.SecretAccessKey)
return jwt
}
// GenerateToken - generates a new Json Web Token based on the incoming user id.
func (jwt *JWT) GenerateToken(userName string) (string, *probe.Error) {
token := jwtgo.New(jwtgo.SigningMethodHS512)
// Token expires in 10hrs.
token.Claims["exp"] = time.Now().Add(time.Hour * tokenExpires).Unix()
token.Claims["iat"] = time.Now().Unix()
token.Claims["sub"] = userName
tokenString, e := token.SignedString(jwt.secretAccessKey)
if e != nil {
return "", probe.NewError(e)
}
return tokenString, nil
}
// Authenticate - authenticates incoming username and password.
func (jwt *JWT) Authenticate(userName, password string) bool {
userName = strings.TrimSpace(userName)
password = strings.TrimSpace(password)
if !bytes.Equal([]byte(userName), jwt.accessKeyID) {
return false
}
hashedPassword, _ := bcrypt.GenerateFromPassword(jwt.secretAccessKey, bcrypt.DefaultCost)
return bcrypt.CompareHashAndPassword(hashedPassword, []byte(password)) == nil
}