Ejemplo n.º 1
0
func (c *Client) Connect() (e error) {
	if c.Port == 0 {
		c.Port = 22
	}

	var auths []ssh.AuthMethod
	if c.password != "" {
		auths = append(auths, ssh.Password(c.password))
	} else if c.Agent, e = net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); e == nil {
		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(c.Agent).Signers))
	}

	config := &ssh.ClientConfig{
		User: c.User,
		Auth: auths,
	}
	c.Conn, e = ssh.Dial("tcp", fmt.Sprintf("%s:%d", c.Host, c.Port), config)
	return e
}
Ejemplo n.º 2
0
func (c *Config) Connection() (*ssh.Client, error) {
	port := c.Port
	if port == 0 {
		port = 22
	}

	var auths []ssh.AuthMethod
	if c.Password != "" {
		auths = append(auths, ssh.Password(c.Password))
	} else if sshAgent, e := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); e == nil {
		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(sshAgent).Signers))
	}

	config := &ssh.ClientConfig{
		User: c.User,
		Auth: auths,
	}
	return ssh.Dial("tcp", fmt.Sprintf("%s:%d", c.Host, port), config)
}
Ejemplo n.º 3
0
func TestAuth(t *testing.T) {
	a, b, err := netPipe()
	if err != nil {
		t.Fatalf("netPipe: %v", err)
	}

	defer a.Close()
	defer b.Close()

	agent, _, cleanup := startAgent(t)
	defer cleanup()

	if err := agent.Add(testPrivateKeys["rsa"], nil, "comment"); err != nil {
		t.Errorf("Add: %v", err)
	}

	serverConf := ssh.ServerConfig{}
	serverConf.AddHostKey(testSigners["rsa"])
	serverConf.PublicKeyCallback = func(c ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
		if bytes.Equal(key.Marshal(), testPublicKeys["rsa"].Marshal()) {
			return nil, nil
		}

		return nil, errors.New("pubkey rejected")
	}

	go func() {
		conn, _, _, err := ssh.NewServerConn(a, &serverConf)
		if err != nil {
			t.Fatalf("Server: %v", err)
		}
		conn.Close()
	}()

	conf := ssh.ClientConfig{}
	conf.Auth = append(conf.Auth, ssh.PublicKeysCallback(agent.Signers))
	conn, _, _, err := ssh.NewClientConn(b, "", &conf)
	if err != nil {
		t.Fatalf("NewClientConn: %v", err)
	}
	conn.Close()
}
Ejemplo n.º 4
0
func (c *goCryptoCommand) ensureSession() (*ssh.Session, error) {
	if c.sess != nil {
		return c.sess, nil
	}
	if len(c.signers) == 0 {
		return nil, fmt.Errorf("no private keys available")
	}
	if c.user == "" {
		currentUser, err := user.Current()
		if err != nil {
			return nil, fmt.Errorf("getting current user: %v", err)
		}
		c.user = currentUser.Username
	}
	config := &ssh.ClientConfig{
		User: c.user,
		Auth: []ssh.AuthMethod{
			ssh.PublicKeysCallback(func() ([]ssh.Signer, error) {
				return c.signers, nil
			}),
		},
	}
	client, err := sshDialWithProxy(c.addr, c.proxyCommand, config)
	if err != nil {
		return nil, err
	}
	sess, err := client.NewSession()
	if err != nil {
		client.Close()
		return nil, err
	}
	c.client = client
	c.sess = sess
	c.sess.Stdin = c.stdin
	c.sess.Stdout = c.stdout
	c.sess.Stderr = c.stderr
	return sess, nil
}
Ejemplo n.º 5
0
Archivo: main.go Proyecto: nemith/sftp
func main() {
	var auths []ssh.AuthMethod
	if aconn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK")); err == nil {
		auths = append(auths, ssh.PublicKeysCallback(agent.NewClient(aconn).Signers))

	}
	if *PASS != "" {
		auths = append(auths, ssh.Password(*PASS))
	}

	config := ssh.ClientConfig{
		User: *USER,
		Auth: auths,
	}
	addr := fmt.Sprintf("%s:%d", *HOST, *PORT)
	conn, err := ssh.Dial("tcp", addr, &config)
	if err != nil {
		log.Fatalf("unable to connect to [%s]: %v", addr, err)
	}
	defer conn.Close()

	client, err := sftp.NewClient(conn)
	if err != nil {
		log.Fatalf("unable to start sftp subsytem: %v", err)
	}
	defer client.Close()
	switch cmd := flag.Args()[0]; cmd {
	case "ls":
		if len(flag.Args()) < 2 {
			log.Fatalf("%s %s: remote path required", cmd, os.Args[0])
		}
		walker := client.Walk(flag.Args()[1])
		for walker.Step() {
			if err := walker.Err(); err != nil {
				log.Println(err)
				continue
			}
			fmt.Println(walker.Path())
		}
	case "fetch":
		if len(flag.Args()) < 2 {
			log.Fatalf("%s %s: remote path required", cmd, os.Args[0])
		}
		f, err := client.Open(flag.Args()[1])
		if err != nil {
			log.Fatal(err)
		}
		defer f.Close()
		if _, err := io.Copy(os.Stdout, f); err != nil {
			log.Fatal(err)
		}
	case "put":
		if len(flag.Args()) < 2 {
			log.Fatalf("%s %s: remote path required", cmd, os.Args[0])
		}
		f, err := client.Create(flag.Args()[1])
		if err != nil {
			log.Fatal(err)
		}
		defer f.Close()
		if _, err := io.Copy(f, os.Stdin); err != nil {
			log.Fatal(err)
		}
	case "stat":
		if len(flag.Args()) < 2 {
			log.Fatalf("%s %s: remote path required", cmd, os.Args[0])
		}
		f, err := client.Open(flag.Args()[1])
		if err != nil {
			log.Fatal(err)
		}
		defer f.Close()
		fi, err := f.Stat()
		if err != nil {
			log.Fatalf("unable to stat file: %v", err)
		}
		fmt.Printf("%s %d %v\n", fi.Name(), fi.Size(), fi.Mode())
	case "rm":
		if len(flag.Args()) < 2 {
			log.Fatalf("%s %s: remote path required", cmd, os.Args[0])
		}
		if err := client.Remove(flag.Args()[1]); err != nil {
			log.Fatalf("unable to remove file: %v", err)
		}
	case "mv":
		if len(flag.Args()) < 3 {
			log.Fatalf("%s %s: old and new name required", cmd, os.Args[0])
		}
		if err := client.Rename(flag.Args()[1], flag.Args()[2]); err != nil {
			log.Fatalf("unable to rename file: %v", err)
		}
	default:
		log.Fatal("unknown subcommand: %v", cmd)
	}
}