example_set_host_key_callback_shell.go

// Copyright (c) 2020 Blacknon. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.

// Shell connection and any HostKeyCallback use Example file.
// Change the value of the variable and compile to make sure that you can actually connect.
//
// This file uses key authentication. Please replace as appropriate.

package main

import (
	"fmt"
	"os"

	sshlib "github.com/blacknon/go-sshlib"
	"golang.org/x/crypto/ssh"
)

var (
	host    = "target.com"
	port    = "22"
	user    = "user"
	privkey = "~/.ssh/sshenc_key"
	keypass = "password"

	termlog = "./test_termlog"
)

func main() {
	// Create sshlib.Connect
	con := &sshlib.Connect{
		// If you use x11 forwarding, please set to true.
		ForwardX11: false,

		// If you use ssh-agent forwarding, please set to true.
		// And after, run `con.ConnectSshAgent()`.
		ForwardAgent: false,
	}

	// set any HostKeyCallback.
	con.HostKeyCallback = ssh.InsecureIgnoreHostKey()

	// Create ssh.AuthMethods
	authMethod, err := sshlib.CreateAuthMethodPublicKey(privkey, keypass)
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	// If you use ssh-agent forwarding, uncomment it.
	// con.ConnectSshAgent()

	// Connect ssh server
	err = con.CreateClient(host, port, user, []ssh.AuthMethod{authMethod})
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	// Set terminal log
	// con.SetLog(termlog, false)

	// Create Session
	session, err := con.CreateSession()
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}

	// Start ssh shell
	con.Shell(session)
}