/
ssh.go
91 lines (77 loc) · 1.65 KB
/
ssh.go
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package ssh
import (
"bytes"
"errors"
"fmt"
"net"
"golang.org/x/crypto/ssh"
)
type SSHMessage struct {
User, Password, Host, Cmd string
Port int
Client *ssh.Client
}
func NewSSH(user, password, host string, port int) *SSHMessage {
return &SSHMessage{
User: user,
Password: password,
Host: host,
Port: port,
}
}
func (s *SSHMessage) Start() error {
return s.start()
}
// 登录服务器
func (s *SSHMessage) start() error {
var (
auth []ssh.AuthMethod
addr string
clinetConfig *ssh.ClientConfig
err error
)
auth = make([]ssh.AuthMethod, 0)
auth = append(auth, ssh.Password(s.Password))
hostKeyCallbk := func(hostname string, remote net.Addr, key ssh.PublicKey) error {
return nil
}
clinetConfig = &ssh.ClientConfig{
User: s.User,
Auth: auth,
HostKeyCallback: hostKeyCallbk,
}
addr = fmt.Sprintf("%s:%d", s.Host, s.Port)
if s.Client, err = ssh.Dial("tcp", addr, clinetConfig); err != nil {
return err
}
return nil
}
// 执行命令
func (s *SSHMessage) Run(cmd string) (out string, err error) {
session, err := s.Client.NewSession()
if err != nil {
return "", err
}
defer session.Close()
var stdOut, stdErr bytes.Buffer
session.Stdout = &stdOut
session.Stderr = &stdErr
if err = session.Run(cmd); err != nil {
return "", err
}
if stdErr.Len() != 0 {
return "", errors.New(stdErr.String())
}
out = stdOut.String()
return out, nil
}
// 退出登录
func (s *SSHMessage) Stop() error {
return s.stop()
}
func (s *SSHMessage) stop() error {
if err := s.Client.Close(); err != nil {
return err
}
return nil
}