堡垒机 paramiko 自动登陆代码

#!/usr/bin/env python

# Copyright (C) -  Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
#  Temple Place, Suite , Boston, MA  -  USA.

import base64
from binascii import hexlify
import getpass
import os
import select
import socket
import sys
import time
import traceback
from paramiko.py3compat import input

import paramiko

dic_iplist = {
        '172.16.230.151':'',
        '172.16.230.130':'Admin2015',
        '172.16.230.223':'Admin2015'
}

try:
    import interactive
except ImportError:
    from . import interactive

def agent_auth(transport, username):
    """
    Attempt to authenticate to the given transport using any of the private
    keys available from an SSH agent.
    """

    agent = paramiko.Agent()
    agent_keys = agent.get_keys()
    if len(agent_keys) == :
        return

    for key in agent_keys:
        print('Trying ssh-agent key %s' % hexlify(key.get_fingerprint()))
        try:
            transport.auth_publickey(username, key)
            print('... success!')
            return
        except paramiko.SSHException:
            print('... nope.')

def manual_auth(username, hostname,pw):
    t.auth_password(username, pw)

# setup logging
paramiko.util.log_to_file('demo.log')

username = ''
if len(sys.argv) > :
    hostname = sys.argv[]
    if hostname.find('@') >= :
        username, hostname = hostname.split('@')
else:
    for num,key in enumerate(dic_iplist.keys()):
        print num,key
    chooies = input('chooise number: ')
    if chooies.isdigit():
        chooies = int(chooies)
        hostname = dic_iplist.keys()[chooies]    #ipaddr
        password = dic_iplist[hostname]          #password

if len(hostname) == :
    print('*** Hostname required.')
    sys.exit()
port =
if hostname.find(':') >= :
    hostname, portstr = hostname.split(':')
    port = int(portstr)

# now connect
try:
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect((hostname, port))
except Exception as e:
    print('*** Connect failed: ' + str(e))
    traceback.print_exc()
    sys.exit()

try:
    t = paramiko.Transport(sock)
    try:
        t.start_client()
    except paramiko.SSHException:
        print('*** SSH negotiation failed.')
        sys.exit()

    try:
        keys = paramiko.util.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
    except IOError:
        try:
            keys = paramiko.util.load_host_keys(os.path.expanduser('~/ssh/known_hosts'))
        except IOError:
            print('*** Unable to open host keys file')
            keys = {}

    # check server's host key -- this is important.
    key = t.get_remote_server_key()
    if hostname not in keys:
        print('*** WARNING: Unknown host key!')
    elif key.get_name() not in keys[hostname]:
        print('*** WARNING: Unknown host key!')
    elif keys[hostname][key.get_name()] != key:
        print('*** WARNING: Host key has changed!!!')
        sys.exit()
    else:
        print('*** Host key OK.')

    # get username
    if username == '':
        default_username = getpass.getuser()

        if default_username == 'root':
            username = default_username
        else:
            username = 'devuser'

    agent_auth(t, username)
    if not t.is_authenticated():
        manual_auth(username, hostname,password)
    if not t.is_authenticated():
        print('*** Authentication failed. :(')
        t.close()
        sys.exit()

    chan = t.open_session()
    chan.get_pty()
    chan.invoke_shell()
    print('*** Here we go!\n')
    interactive.interactive_shell(chan,default_username,hostname,username)
    chan.close()
    t.close()

except Exception as e:
    print('*** Caught exception: ' + str(e.__class__) + ': ' + str(e))
    traceback.print_exc()
    try:
        t.close()
    except:
        pass
    sys.exit()

# Copyright (C) -  Robey Pointer <robeypointer@gmail.com>
#
# This file is part of paramiko.
#
# Paramiko is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# Paramiko is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Paramiko; if not, write to the Free Software Foundation, Inc.,
#  Temple Place, Suite , Boston, MA  -  USA.

import socket
import sys
from paramiko.py3compat import u
import time
import os

fiedir = '/tmp'
logfile = 'history_log.txt'

# windows does not have termios...
try:
    import termios
    import tty
    has_termios = True
except ImportError:
    has_termios = False

def interactive_shell(chan,default_username,hostname,username):
    if has_termios:
        posix_shell(chan,default_username,hostname,username)
    else:
        windows_shell(chan,default_username,hostname,username)

def posix_shell(chan,default_username,hostname,username):
    import select

    oldtty = termios.tcgetattr(sys.stdin)
    try:
        tty.setraw(sys.stdin.fileno())
        tty.setcbreak(sys.stdin.fileno())
        chan.settimeout(0.0)
        res_list = []
        file_dir = os.path.join(fiedir,logfile)
        with open(file_dir,'ab+') as f:
            while True:
                r, w, e = select.select([chan, sys.stdin], [], [])
                if chan in r:
                    try:
                        x = u(chan.recv())
                        if len(x) == :
                            sys.stdout.write('\r\n*** EOF\r\n')
                            break
                        sys.stdout.write(x)
                        sys.stdout.flush()
                    except socket.timeout:
                        pass
                if sys.stdin in r:
                    x = sys.stdin.read()
                    res_list.append(x)
                    if x == '\r':
                        cmd =''.join(res_list).replace('\r','\n')

                        c_time = time.strftime('%Y-%m-%d %H:%M:%S')
                        filename = '%s  %s  %s  %s  %s'%(c_time,default_username,username,hostname,cmd)
                        #filename = '%s  %s'%(c_time,cmd)
                        f.write(filename)
                        res_list = []
                    if len(x) == :
                        break
                    chan.send(x)

    finally:
        termios.tcsetattr(sys.stdin, termios.TCSADRAIN, oldtty)

# thanks to Mike Looijmans for this code
def windows_shell(chan):
    import threading

    sys.stdout.write("Line-buffered terminal emulation. Press F6 or ^Z to send EOF.\r\n\r\n")

    def writeall(sock):
        while True:
            data = sock.recv()
            if not data:
                sys.stdout.write('\r\n*** EOF ***\r\n\r\n')
                sys.stdout.flush()
                break
            sys.stdout.write(data)
            sys.stdout.flush()

    writer = threading.Thread(target=writeall, args=(chan,))
    writer.start()

    try:
        while True:
            d = sys.stdin.read()
            if not d:
                break
            chan.send(d)
    except EOFError:
        # user hit ^Z or F6
        pass

为了安全，需要在用户名的环境变量加载demo.py这个脚本

vim ~/.bashrc

python /home/feng/data/paramiko-master/demos/demo.py

logout

登陆结果如下，退出后，直接退出终端