blob: ff1eb829dfa2f790b0045a31578ea5b24095d430 (
plain)
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
|
package server
import (
"dtail/config"
"dtail/logger"
"dtail/ssh"
"io/ioutil"
"os"
)
// PrivateHostKey retrieves the private server RSA host key.
func PrivateHostKey() []byte {
hostKeyFile := config.Server.HostKeyFile
_, err := os.Stat(hostKeyFile)
if os.IsNotExist(err) {
logger.Info("Generating private server RSA host key")
privateKey, err := ssh.GeneratePrivateRSAKey(config.Server.HostKeyBits)
if err != nil {
logger.FatalExit("Failed to generate private server RSA host key", err)
}
pem := ssh.EncodePrivateKeyToPEM(privateKey)
if err := ioutil.WriteFile(hostKeyFile, pem, 0600); err != nil {
logger.Error("Unable to write private server RSA host key to file", hostKeyFile, err)
}
return pem
}
logger.Info("Reading private server RSA host key from file", hostKeyFile)
pem, err := ioutil.ReadFile(hostKeyFile)
if err != nil {
logger.FatalExit("Failed to load private server RSA host key", err)
}
return pem
}
|
