harbor/src/pkg/token/options.go

95 lines
2.4 KiB
Go

// Copyright Project Harbor Authors
//
// 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 token
import (
"crypto/rsa"
"fmt"
"os"
"github.com/golang-jwt/jwt/v5"
"github.com/goharbor/harbor/src/lib/config"
"github.com/goharbor/harbor/src/lib/log"
)
const (
defaultIssuer = "harbor-token-defaultIssuer"
defaultSignedMethod = "RS256"
)
// Options ...
type Options struct {
SignMethod jwt.SigningMethod
PublicKey []byte
PrivateKey []byte
Issuer string
}
// GetKey ...
func (o *Options) GetKey() (interface{}, error) {
var err error
var privateKey *rsa.PrivateKey
var publicKey *rsa.PublicKey
switch o.SignMethod.(type) {
case *jwt.SigningMethodRSA, *jwt.SigningMethodRSAPSS:
if len(o.PrivateKey) > 0 {
privateKey, err = jwt.ParseRSAPrivateKeyFromPEM(o.PrivateKey)
if err != nil {
return nil, err
}
}
if len(o.PublicKey) > 0 {
publicKey, err = jwt.ParseRSAPublicKeyFromPEM(o.PublicKey)
if err != nil {
return nil, err
}
}
if privateKey == nil {
if publicKey != nil {
return publicKey, nil
}
return nil, fmt.Errorf("key is provided")
}
if publicKey != nil && publicKey.E != privateKey.E && publicKey.N.Cmp(privateKey.N) != 0 {
return nil, fmt.Errorf("the public key and private key are not match")
}
return privateKey, nil
default:
return nil, fmt.Errorf(fmt.Sprintf("unsupported sign method, %s", o.SignMethod))
}
}
// DefaultTokenOptions ...
func DefaultTokenOptions() *Options {
opt, _ := NewOptions(defaultSignedMethod, defaultIssuer, config.TokenPrivateKeyPath())
return opt
}
// NewOptions create Options based on input parms
func NewOptions(sm, iss, keyPath string) (*Options, error) {
pk, err := os.ReadFile(keyPath)
if err != nil {
log.Errorf(fmt.Sprintf("failed to read private key %v", err))
return nil, err
}
return &Options{
PrivateKey: pk,
SignMethod: jwt.GetSigningMethod(sm),
Issuer: iss,
}, nil
}