[Golang]ssh登录及执行命令
package main
import (
"fmt"
"github.com/mitchellh/go-homedir"
"golang.org/x/crypto/ssh"
"io/ioutil"
"log"
"time"
)
func main() {
re,err := sshL("192.168.199.1","root","rehttPassword","password","","uname -a",22)
if err != nil{
fmt.println(err)
}
fmt.println(string(re))
}
func sshL(sshHost,sshUser,sshPassword,sshType,sshKeyPath,command string,sshPort int) ([]byte,error) {
//创建sshp登陆配置
config := &ssh.ClientConfig{
Timeout: time.Second,//ssh 连接time out 时间一秒钟, 如果ssh验证错误 会在一秒内返回
User: sshUser,
HostKeyCallback: ssh.InsecureIgnoreHostKey(), //这个可以， 但是不够安全
//HostKeyCallback: hostKeyCallBackFunc(h.Host),
}
if sshType == "password" {
config.Auth = []ssh.AuthMethod{ssh.Password(sshPassword)}
} else {
config.Auth = []ssh.AuthMethod{publicKeyAuthFunc(sshKeyPath)}
}
//dial 获取ssh client
addr := fmt.Sprintf("%s:%d", sshHost, sshPort)
sshClient, err := ssh.Dial("tcp", addr, config)
if err != nil {
log.Fatal("创建ssh client 失败",err)
return nil,err
}
defer sshClient.Close()
//创建ssh-session
session, err := sshClient.NewSession()
if err != nil {
log.Fatal("创建ssh session 失败",err)
return nil,err
}
defer session.Close()
//执行远程命令
combo,err := session.CombinedOutput(command)
if err != nil {
log.Fatal("远程执行cmd 失败",err)
return nil,err
}
return combo,nil
}
func publicKeyAuthFunc(kPath string) ssh.AuthMethod {
keyPath, err := homedir.Expand(kPath)
if err != nil {
log.Fatal("find key's home dir failed", err)
}
key, err := ioutil.ReadFile(keyPath)
if err != nil {
log.Fatal("ssh key file read failed", err)
}
// Create the Signer for this private key.
signer, err := ssh.ParsePrivateKey(key)
if err != nil {
log.Fatal("ssh key signer failed", err)
}
return ssh.PublicKeys(signer)
}