-
Notifications
You must be signed in to change notification settings - Fork 1.5k
/
info.go
212 lines (183 loc) · 4.86 KB
/
info.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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
/*
* Copyright 2018 Dgraph Labs, Inc. and Contributors
*
* 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 cert
import (
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/md5"
"crypto/rsa"
"encoding/hex"
"fmt"
"os"
"path/filepath"
"strings"
"time"
"github.com/dgraph-io/dgraph/x"
)
type certInfo struct {
fileName string
issuerName string
commonName string
serialNumber string
verifiedCA string
md5sum string
expireDate time.Time
hosts []string
fileMode string
err error
}
func getFileInfo(file string) *certInfo {
var info certInfo
info.fileName = file
switch {
case strings.HasSuffix(file, ".crt"):
cert, err := readCert(file)
if err != nil {
info.err = err
return &info
}
info.commonName = cert.Subject.CommonName + " certificate"
info.issuerName = strings.Join(cert.Issuer.Organization, ", ")
info.serialNumber = hex.EncodeToString(cert.SerialNumber.Bytes())
info.expireDate = cert.NotAfter
switch {
case file == defaultCACert:
case file == defaultNodeCert:
for _, ip := range cert.IPAddresses {
info.hosts = append(info.hosts, ip.String())
}
for _, name := range cert.DNSNames {
info.hosts = append(info.hosts, name)
}
case strings.HasPrefix(file, "client."):
info.commonName = fmt.Sprintf("%s client certificate: %s",
dnCommonNamePrefix, cert.Subject.CommonName)
default:
info.err = fmt.Errorf("Unsupported certificate")
return &info
}
switch key := cert.PublicKey.(type) {
case *rsa.PublicKey:
h := md5.Sum(key.N.Bytes())
info.md5sum = fmt.Sprintf("%X", h[:])
case *ecdsa.PublicKey:
h := md5.Sum(elliptic.Marshal(key.Curve, key.X, key.Y))
info.md5sum = fmt.Sprintf("%X", h[:])
default:
info.md5sum = "Invalid RSA public key"
}
if file != defaultCACert {
parent, err := readCert(defaultCACert)
if err != nil {
info.err = fmt.Errorf("Could not read parent cert: %s", err)
return &info
}
if err := cert.CheckSignatureFrom(parent); err != nil {
info.verifiedCA = "FAILED"
}
info.verifiedCA = "PASSED"
}
case strings.HasSuffix(file, ".key"):
switch {
case file == defaultCAKey:
info.commonName = dnCommonNamePrefix + " Root CA key"
case file == defaultNodeKey:
info.commonName = dnCommonNamePrefix + " Node key"
case strings.HasPrefix(file, "client."):
info.commonName = dnCommonNamePrefix + " Client key"
default:
info.err = fmt.Errorf("Unsupported key")
return &info
}
priv, err := readKey(file)
if err != nil {
info.err = err
return &info
}
key, ok := priv.(crypto.Signer)
if !ok {
info.err = x.Errorf("Unknown private key type: %T", key)
}
switch k := key.(type) {
case *ecdsa.PrivateKey:
h := md5.Sum(elliptic.Marshal(k.PublicKey.Curve, k.PublicKey.X, k.PublicKey.Y))
info.md5sum = fmt.Sprintf("%X", h[:])
case *rsa.PrivateKey:
h := md5.Sum(k.PublicKey.N.Bytes())
info.md5sum = fmt.Sprintf("%X", h[:])
}
default:
info.err = fmt.Errorf("Unsupported file")
}
return &info
}
// getDirFiles walks dir and collects information about the files contained.
// Returns the list of files, or an error otherwise.
func getDirFiles(dir string) ([]*certInfo, error) {
if err := os.Chdir(dir); err != nil {
return nil, err
}
var files []*certInfo
err := filepath.Walk(".", func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if info.IsDir() {
return nil
}
ci := getFileInfo(path)
if ci == nil {
return nil
}
ci.fileMode = info.Mode().String()
files = append(files, ci)
return nil
})
if err != nil {
return nil, err
}
return files, nil
}
// Format implements the fmt.Formatter interface, used by fmt functions to
// generate output using custom format specifiers. This function creates the
// format specifiers '%n', '%x', '%e' to extract name, expiration date, and
// error string from an Info object.
func (i *certInfo) Format(f fmt.State, c rune) {
w, wok := f.Width() // width modifier. eg., %20n
p, pok := f.Precision() // precision modifier. eg., %.20n
var str string
switch c {
case 'n':
str = i.commonName
case 'x':
if i.expireDate.IsZero() {
break
}
str = i.expireDate.Format(time.RFC822)
case 'e':
if i.err != nil {
str = i.err.Error()
}
}
if wok {
str = fmt.Sprintf("%-[2]*[1]s", str, w)
}
if pok && len(str) < p {
str = str[:p]
}
f.Write([]byte(str))
}