-
Notifications
You must be signed in to change notification settings - Fork 1
/
comissioning.go
84 lines (68 loc) · 1.71 KB
/
comissioning.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
package ship
import (
"bufio"
"crypto/rsa"
"crypto/sha1"
"crypto/x509"
"encoding/hex"
"encoding/pem"
"errors"
"os"
"strings"
"github.com/LMF-DHBW/go-eebus/resources"
)
func ReadSkis() ([]string, []string) {
// Create file if not exists
if _, err := os.Stat("skis.txt"); errors.Is(err, os.ErrNotExist) {
return make([]string, 0), make([]string, 0)
}
file, err := os.Open("skis.txt")
resources.CheckError(err)
defer file.Close()
var skis []string
var devices []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := strings.Split(scanner.Text(), ",")
if len(line) > 1 {
skis = append(skis, line[0])
devices = append(devices, line[1])
}
}
resources.CheckError(scanner.Err())
return skis, devices
}
func WriteSkis(newSkis []string, newDevices []string) {
file, err := os.OpenFile("skis.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
resources.CheckError(err)
defer file.Close()
if len(newSkis) == len(newDevices) {
result := ""
for i := 0; i < len(newSkis); i++ {
if newSkis[i] != "" {
result += newSkis[i] + "," + newDevices[i]
if i < (len(newSkis) - 1) {
result += "\n"
}
}
}
_, err = file.WriteString(result)
resources.CheckError(err)
}
}
func (shipNode *ShipNode) getSki() string {
var file []byte
var err error
file, err = os.ReadFile(shipNode.CertName + ".crt")
resources.CheckError(err)
crt := string(file)
block, _ := pem.Decode([]byte(crt))
var cert *x509.Certificate
cert, _ = x509.ParseCertificate(block.Bytes)
pubkey := cert.PublicKey.(*rsa.PublicKey)
publicKey, err := x509.MarshalPKIXPublicKey(pubkey)
resources.CheckError(err)
hasher := sha1.New()
hasher.Write(publicKey)
return hex.EncodeToString(hasher.Sum(nil))
}