Exemple #1
0
func ExampleClient_Listen() {
	config := &ssh.ClientConfig{
		User: "******",
		Auth: []ssh.AuthMethod{
			ssh.Password("password"),
		},
	}
	// Dial your ssh server.
	conn, err := ssh.Dial("tcp", "localhost:22", config)
	if err != nil {
		log.Fatalf("unable to connect: %s", err)
	}
	defer conn.Close()

	// Request the remote side to open port 8080 on all interfaces.
	l, err := conn.Listen("tcp", "0.0.0.0:8080")
	if err != nil {
		log.Fatalf("unable to register tcp forward: %v", err)
	}
	defer l.Close()

	// Serve HTTP with your SSH server acting as a reverse proxy.
	http.Serve(l, http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
		fmt.Fprintf(resp, "Hello world!\n")
	}))
}
Exemple #2
0
func ExampleSession_RequestPty() {
	// Create client config
	config := &ssh.ClientConfig{
		User: "******",
		Auth: []ssh.AuthMethod{
			ssh.Password("password"),
		},
	}
	// Connect to ssh server
	conn, err := ssh.Dial("tcp", "localhost:22", config)
	if err != nil {
		log.Fatalf("unable to connect: %s", err)
	}
	defer conn.Close()
	// Create a session
	session, err := conn.NewSession()
	if err != nil {
		log.Fatalf("unable to create session: %s", err)
	}
	defer session.Close()
	// Set up terminal modes
	modes := ssh.TerminalModes{
		ssh.ECHO:          0,     // disable echoing
		ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
		ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
	}
	// Request pseudo terminal
	if err := session.RequestPty("xterm", 80, 40, modes); err != nil {
		log.Fatalf("request for pseudo terminal failed: %s", err)
	}
	// Start remote shell
	if err := session.Shell(); err != nil {
		log.Fatalf("failed to start shell: %s", err)
	}
}
Exemple #3
0
func ExampleDial() {
	// An SSH client is represented with a ClientConn. Currently only
	// the "password" authentication method is supported.
	//
	// To authenticate with the remote server you must pass at least one
	// implementation of AuthMethod via the Auth field in ClientConfig.
	config := &ssh.ClientConfig{
		User: "******",
		Auth: []ssh.AuthMethod{
			ssh.Password("yourpassword"),
		},
	}
	client, err := ssh.Dial("tcp", "yourserver.com:22", config)
	if err != nil {
		panic("Failed to dial: " + err.Error())
	}

	// Each ClientConn can support multiple interactive sessions,
	// represented by a Session.
	session, err := client.NewSession()
	if err != nil {
		panic("Failed to create session: " + err.Error())
	}
	defer session.Close()

	// Once a Session is created, you can execute a single command on
	// the remote side using the Run method.
	var b bytes.Buffer
	session.Stdout = &b
	if err := session.Run("/usr/bin/whoami"); err != nil {
		panic("Failed to run: " + err.Error())
	}
	fmt.Println(b.String())
}
Exemple #4
0
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()

	c, err := sftp.NewClient(conn)
	if err != nil {
		log.Fatalf("unable to start sftp subsytem: %v", err)
	}
	defer c.Close()

	r, err := c.Open("/dev/zero")
	if err != nil {
		log.Fatal(err)
	}
	defer r.Close()

	w, err := os.OpenFile("/dev/null", syscall.O_WRONLY, 0600)
	if err != nil {
		log.Fatal(err)
	}
	defer w.Close()

	const size int64 = 1e9

	log.Printf("reading %v bytes", size)
	t1 := time.Now()
	n, err := io.Copy(w, io.LimitReader(r, size))
	if err != nil {
		log.Fatal(err)
	}
	if n != size {
		log.Fatalf("copy: expected %v bytes, got %d", size, n)
	}
	log.Printf("read %v bytes in %s", size, time.Since(t1))
}
Exemple #5
0
// This method creates executor based on ssh, it has concrete ssh reference
func NewRemoteExecutor(sshCfg SshConfig) (executor Executer, err error) {
	clientconfig := &ssh.ClientConfig{
		User: sshCfg.Username,
		Auth: []ssh.AuthMethod{
			ssh.Password(sshCfg.Password),
		},
	}
	client, err := ssh.Dial("tcp", fmt.Sprintf("%s:%d", sshCfg.Host, sshCfg.Port), clientconfig)
	if err != nil {
		return
	}
	c := NewClientWrapper(client)
	executor = &DefaultRemoteExecutor{
		Client: c,
	}
	return
}
Exemple #6
0
func (s *remoteOperations) GetRemoteFile() (rfile io.WriteCloser, err error) {
	var (
		sshconn    *ssh.Client
		sftpclient *sftp.Client
	)

	clientconfig := &ssh.ClientConfig{
		User: s.sshCfg.Username,
		Auth: []ssh.AuthMethod{
			ssh.Password(s.sshCfg.Password),
		},
	}

	if sshconn, err = ssh.Dial("tcp", fmt.Sprintf("%s:%d", s.sshCfg.Host, s.sshCfg.Port), clientconfig); err == nil {

		if sftpclient, err = sftp.NewClient(sshconn); err == nil {
			rfile, err = SafeCreateSSH(sftpclient, s.remotePath)
		}
	}
	return
}
Exemple #7
0
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.Fatalf("unknown subcommand: %v", cmd)
	}
}