forked from dragonflyoss/Dragonfly2
/
dragonfly.go
131 lines (109 loc) · 3.65 KB
/
dragonfly.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
* Copyright 2022 The Dragonfly 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 issuer
import (
"context"
"crypto"
"crypto/rand"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"time"
"github.com/johanbrandhorst/certify"
"google.golang.org/protobuf/types/known/durationpb"
securityv1 "d7y.io/api/v2/pkg/apis/security/v1"
logger "github.com/XDTD/Dragonfly2/internal/dflog"
securityclient "github.com/XDTD/Dragonfly2/pkg/rpc/security/client"
)
var (
// defaultSubjectOrganization is default organization of subject.
defaultSubjectOrganization = []string{"Dragonfly"}
// defaultValidityPeriod is default validity period of certificate.
defaultValidityPeriod time.Duration = 180 * 24 * time.Hour
)
// dragonflyIssuer provides issuer function.
type dragonflyIssuer struct {
securityClient securityclient.V1
validityPeriod time.Duration
}
// Option is a functional option for configuring the dragonflyIssuer.
type Option func(i *dragonflyIssuer)
// WithValidityPeriod set the validityPeriod for dragonflyIssuer.
func WithValidityPeriod(d time.Duration) Option {
return func(i *dragonflyIssuer) {
i.validityPeriod = d
}
}
// NewDragonflyIssuer returns a new certify.Issuer instence.
func NewDragonflyIssuer(securityClient securityclient.V1, opts ...Option) certify.Issuer {
i := &dragonflyIssuer{
securityClient: securityClient,
validityPeriod: defaultValidityPeriod,
}
for _, opt := range opts {
opt(i)
}
return i
}
// Issue returns tls Certificate of issuing.
func (i *dragonflyIssuer) Issue(ctx context.Context, commonName string, certConfig *certify.CertConfig) (*tls.Certificate, error) {
csr, privateKey, err := fromCertifyCertConfig(commonName, certConfig)
if err != nil {
return nil, err
}
resp, err := i.securityClient.IssueCertificate(ctx, &securityv1.CertificateRequest{
Csr: csr,
ValidityPeriod: durationpb.New(i.validityPeriod),
})
if err != nil {
return nil, err
}
leaf, err := x509.ParseCertificate(resp.CertificateChain[0])
if err != nil {
return nil, err
}
logger.Debugf("issue certificate from manager, common name: %s, issuer: %s", commonName, leaf.Issuer.CommonName)
return &tls.Certificate{
Certificate: resp.CertificateChain,
PrivateKey: privateKey,
Leaf: leaf,
}, nil
}
// TODO this func is copied from internal package github.com/johanbrandhorst/certify@v1.9.0/internal/csr/csr.go
// fromCertifyCertConfig creates a CSR and private key from the input config and common name.
// It returns the CSR and private key in PEM format.
func fromCertifyCertConfig(commonName string, conf *certify.CertConfig) ([]byte, crypto.PrivateKey, error) {
pk, err := conf.KeyGenerator.Generate()
if err != nil {
return nil, nil, err
}
template := &x509.CertificateRequest{
Subject: pkix.Name{
CommonName: commonName,
Organization: defaultSubjectOrganization,
},
}
if conf != nil {
template.DNSNames = conf.SubjectAlternativeNames
template.IPAddresses = conf.IPSubjectAlternativeNames
template.URIs = conf.URISubjectAlternativeNames
}
csr, err := x509.CreateCertificateRequest(rand.Reader, template, pk)
if err != nil {
return nil, nil, err
}
return csr, pk, nil
}