zt/ziti/pki/certificate/certificate.go

/*
	Copyright NetFoundry 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

	https://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 certificate

import (
	"crypto"
	"crypto/x509"
	"fmt"
)

// Bundle represents a pair of private key and certificate.
type Bundle struct {
	Name string
	Key  crypto.PrivateKey
	Cert *x509.Certificate
}

// Raw returns the raw bytes for the private key and certificate.
func (b *Bundle) Raw() ([]byte, []byte) {
	keyBytes, _ := x509.MarshalPKCS8PrivateKey(b.Key)
	return keyBytes, b.Cert.Raw
}

// RawToBundle creates a bundle from the name and bytes given for a private key
// and a certificate.
func RawToBundle(name string, key []byte, cert []byte) (*Bundle, error) {
	k, err := x509.ParsePKCS8PrivateKey(key)
	if err != nil {
		//previous versions may have stored private keys as PKCS1 (aka RSA only) try as a secondary action
		var pkcs1Err error
		k, pkcs1Err = x509.ParsePKCS1PrivateKey(key)

		if pkcs1Err != nil {
			return nil, fmt.Errorf("failed parsing private key PKCS8 error: %w, PKCS1 error: %w", err, pkcs1Err)
		}

	}
	c, err := x509.ParseCertificate(cert)
	if err != nil {
		return nil, fmt.Errorf("failed parsing certificate: %v", err)
	}
	return &Bundle{Name: name, Key: k, Cert: c}, nil
}

// State represents a certificate state (Valid, Expired, Revoked).
type State int

// Certificate states.
const (
	Valid State = iota
	Revoked
	Expired
)