-
Notifications
You must be signed in to change notification settings - Fork 14
/
server.go
159 lines (146 loc) · 4.5 KB
/
server.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
package main
import (
"fmt"
"github.com/fatih/color"
expect "github.com/google/goexpect"
"github.com/howeyc/gopass"
"google.golang.org/grpc/codes"
"os"
"os/exec"
"path/filepath"
"strconv"
"strings"
"time"
"golang.org/x/crypto/ssh"
kh "golang.org/x/crypto/ssh/knownhosts"
)
var (
timeout = 10 * time.Minute
)
// Server 结构体
type Server struct {
ip string
port int
user string
pass string
}
func (server *Server) sshTest() bool {
connect := true
var timeCostPoint *string
ptr := &timeCostPoint
defer TimeCostPTR(time.Now(), ptr)
idPath := filepath.Join(os.Getenv("HOME"), ".ssh", "id_ed25519")
if !IsExists(idPath) {
idPath = filepath.Join(os.Getenv("HOME"), ".ssh", "id_rsa")
}
key, err := os.ReadFile(idPath)
if err != nil {
logger.Fatalf("unable to read private key: %v", err)
}
// Create the Signer for this private key.
signer, err := ssh.ParsePrivateKey(key)
if err != nil {
logger.Fatalf("unable to parse private key: %v", err)
}
knowHostsPath := filepath.Join(os.Getenv("HOME"), ".ssh", "known_hosts")
if !IsExists(knowHostsPath) {
knowHostsFile, err := os.Create(knowHostsPath)
if err != nil {
logger.Fatal(err)
}
defer knowHostsFile.Close()
}
hostKeyCallback, err := kh.New(knowHostsPath)
if err != nil {
logger.Fatal("could not create hostkey callback function: ", err)
}
config := &ssh.ClientConfig{
User: server.user,
Auth: []ssh.AuthMethod{
// Add in password check here for moar security.
ssh.PublicKeys(signer),
},
HostKeyCallback: hostKeyCallback,
}
// Connect to the remote server and perform the SSH handshake.
client, err := ssh.Dial("tcp", fmt.Sprintf("%s:%d", server.ip, server.port), config)
if err != nil {
connect = false
} else {
client.Close()
}
var colorConnect string
if connect {
colorConnect = color.GreenString("true")
} else {
colorConnect = color.RedString("false")
}
result := fmt.Sprintf("ssh连接性测试: '%s@%s -p %d' %s", server.user, server.ip, server.port, colorConnect)
timeCostPoint = &result
return connect
}
func (server *Server) copySSHID() {
defer TimeCost(time.Now(), "ssh copy-id")
// 调试用
//e, _, err := expect.SpawnWithArgs([]string{"ssh-copy-id", fmt.Sprintf("%s@%s", server.user, server.ip), "-p", strconv.Itoa(server.port)}, timeout, expect.Verbose(true), expect.DebugCheck(log.New(os.Stdout,"Info:",log.Ldate | log.Ltime | log.Lshortfile)))
e, _, err := expect.Spawn(fmt.Sprintf("ssh-copy-id %s@%s -p %d", server.user, server.ip, server.port), timeout)
if err != nil {
logger.Fatal(err)
}
defer e.Close()
var (
retryCount = 0
exit = false
)
caser := []expect.Caser{
&expect.BCase{R: "password", T: func() (tag expect.Tag, status *expect.Status) {
password := server.pass
if retryCount == 3 {
exit = true
} else {
if password == "" {
if retryCount > 0 {
logger.Printf("%s, please try again\n\n", color.RedString("Permission denied"))
}
tempPass, _ := gopass.GetPasswdPrompt(fmt.Sprintf("请输入'%s@%s -p %s'的密码: ", color.CyanString(server.user), color.CyanString(server.ip), color.CyanString(strconv.Itoa(server.port))), true, os.Stdin, os.Stdout)
password = string(tempPass)
}
_ = e.Send(password + "\n")
retryCount++
}
return expect.OKTag, expect.NewStatus(codes.OK, "")
}},
&expect.BCase{R: "yes/no", S: "yes\n"},
}
for {
if exit {
logger.Println("已经达到3次输错密码! 请重新运行脚本进行免密操作")
break
}
if server.pass != "" && retryCount > 1 {
logger.Println(fmt.Sprintf("'%s@%s -p %s': %s", color.CyanString(server.user), color.CyanString(server.ip), color.CyanString(strconv.Itoa(server.port)), color.RedString("Permission denied")))
break
}
if output, _, _, err := e.ExpectSwitchCase(caser, timeout); err != nil {
if strings.Contains(output, "known_hosts") {
cmd := fmt.Sprintf("sed -i '/%s/d' %s", server.ip, filepath.Join(os.Getenv("HOME"), ".ssh", "known_hosts"))
if _, execError := exec.Command("bash", "-c", cmd).Output(); execError != nil {
logger.Fatal(execError)
}
e, _, _ = expect.Spawn(fmt.Sprintf("ssh-copy-id %s@%s -p %d", server.user, server.ip, server.port), timeout)
continue
}
if !Simple {
logger.Printf("\n" + output)
}
if strings.Contains(output, "added") {
logger.Println(color.GreenString("成功拷贝密钥!"))
} else if strings.Contains(output, "exist") {
logger.Println(color.YellowString("密钥已存在!"))
} else {
logger.Println(color.RedString("拷贝密钥失败!"))
}
break
}
}
}