77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"bytes"
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"strings"
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"time"
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jwtgo "github.com/dgrijalva/jwt-go"
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"github.com/minio/minio/pkg/probe"
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"golang.org/x/crypto/bcrypt"
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)
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// JWT - jwt auth backend
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type JWT struct {
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accessKeyID []byte
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secretAccessKey []byte
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}
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// Default - each token expires in 10hrs.
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const (
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tokenExpires time.Duration = 10
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)
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// InitJWT - initialize.
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func InitJWT() *JWT {
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jwt := &JWT{}
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// Load credentials.
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config, err := loadConfigV2()
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fatalIf(err.Trace("JWT"), "Unable to load configuration file.", nil)
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// Save access, secret keys.
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jwt.accessKeyID = []byte(config.Credentials.AccessKeyID)
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jwt.secretAccessKey = []byte(config.Credentials.SecretAccessKey)
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return jwt
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}
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// GenerateToken - generates a new Json Web Token based on the incoming user id.
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func (jwt *JWT) GenerateToken(userName string) (string, *probe.Error) {
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token := jwtgo.New(jwtgo.SigningMethodHS512)
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// Token expires in 10hrs.
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token.Claims["exp"] = time.Now().Add(time.Hour * tokenExpires).Unix()
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token.Claims["iat"] = time.Now().Unix()
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token.Claims["sub"] = userName
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tokenString, e := token.SignedString(jwt.secretAccessKey)
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if e != nil {
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return "", probe.NewError(e)
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}
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return tokenString, nil
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}
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// Authenticate - authenticates incoming username and password.
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func (jwt *JWT) Authenticate(userName, password string) bool {
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userName = strings.TrimSpace(userName)
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password = strings.TrimSpace(password)
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if !bytes.Equal([]byte(userName), jwt.accessKeyID) {
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return false
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}
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hashedPassword, _ := bcrypt.GenerateFromPassword(jwt.secretAccessKey, bcrypt.DefaultCost)
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return bcrypt.CompareHashAndPassword(hashedPassword, []byte(password)) == nil
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}
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