很多时候我们喜欢在自己电脑的终端直接ssh连接Linux服务器,而不喜欢使用那些有UI界面的工具区连接我们的服务器。可是在终端使用ssh我们每次都需要输入账号和密码,这也是一个烦恼,所以我们可以简单的打造一个在Linux/Mac os运行的自动ssh登录远程服务器的小工具。
来个GIF动画示例下先:
概述
我们先理一下我们需要些什么功能:
1. 添加/删除连接服务器需要的IP,端口,密码
2. 自动输入密码登录远程服务器
对,我们就做这么简单的功能
开始写代码
代码比较长,所以我也放在在Github和码云,地址在文章最底部:
1.我们建个模块目录osnssh(Open source noob ssh),然后在下面再建两个目录,一个用来放主程序取名叫bin吧,一个用来保存登录数据(IP, 端口,密码)叫data吧。
-osnssh
-bin
-data
1.设置程序:添加/删除IP,端口,密码. 建立py文件bin/setting.py:
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#!/usr/bin/env python #-*-coding:utf-8-*- import re, base64, os, sys path = os.path.dirname(os.path.abspath(sys.argv[ 0 ])) ''' 选项配置管理 __author__ = 'allen woo' ''' def add_host_main(): while 1 : if add_host(): break print ( "\n\nAgain:" ) def add_host(): ''' 添加主机信息 :return: ''' print ( "================Add=====================" ) print ( "[Help]Input '#q' exit" ) # 输入IP host_ip = str_format( "Host IP:" , "^(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\.(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])$" ) if host_ip = = "#q" : return 1 # 输入端口 host_port = str_format( "Host port(Default 22):" , "[0-9]+" ) if host_port = = "#q" : return 1 # 输入密码 password = str_format( "Password:" , ".*" ) if password = = "#q" : return 1 # 密码加密 password = base64.encodestring(password) # 输入用户名 name = str_format( "User Name:" , "^[^ ]+$" ) if name = = "#q" : return 1 elif not name: os.system( "clear" ) print ( "[Warning]:User name cannot be emptyg" ) return 0 # The alias # 输入别名 alias = str_format( "Local Alias:" , "^[^ ]+$" ) if alias = = "#q" : return 1 elif not alias: os.system( "clear" ) print ( "[Warning]:Alias cannot be emptyg" ) return 0 # 打开数据保存文件 of = open ( "{}/data/information.d" . format (path)) hosts = of.readlines() # 遍历文件数据,查找是否有存在的Ip,端口,还有别名 for l in hosts: l = l.strip( "\n" ) if not l: continue l_list = l.split( " " ) if host_ip = = l_list[ 1 ] and host_port = = l_list[ 2 ]: os.system( "clear" ) print ( "[Warning]{}:{} existing" . format (host_ip, host_port)) return 0 if alias = = l_list[ 4 ]: os.system( "clear" ) print ( "[Warning]Alias '{}' existing" . format (alias)) return 0 of.close() # save # 保存数据到数据文件 of = open ( "{}/data/information.d" . format (path), "a" ) of.write( "\n{} {} {} {} {}" . format (name.strip( "\n" ), host_ip.strip( "\n" ), host_port, password.strip( "\n" ), alias.strip( "\n" ))) of.close() print ( "Add the success:{} {}@{}:{}" . format (alias.strip( "\n" ), name.strip( "\n" ), host_ip.strip( "\n" ), host_port, password.strip( "\n" ))) return 1 def remove_host(): ''' 删除主机信息 :return: ''' while 1 : # 打开数据文件 of = open ( "{}/data/information.d" . format (path)) hosts = of.readlines() of.close l = len (hosts) if l < = 0 : os.system( "clear" ) print ( "[Warning]There is no host" ) return print ( "================Remove================" ) print ( "+{}+" . format ( "-" * 40 )) print ( "| Alias UserName@IP:PORT" ) hosts_temp = [] n = 0 # 遍历输出所以信息(除了密码)供选择 for i in range ( 0 , l): if not hosts[i].strip(): continue v_list = hosts[i].strip().split( " " ) print ( "+{}+" . format ( "-" * 40 )) print ( "| {} | {} {}@{}:{}" . format (n + 1 , v_list[ 4 ], v_list[ 0 ], v_list[ 1 ], v_list[ 2 ])) n + = 1 hosts_temp.append(hosts[i]) hosts = hosts_temp[:] print ( "+{}+" . format ( "-" * 40 )) c = raw_input ( "[Remove]Choose the Number or Alias('#q' to exit):" ) is_alias = False is_y = False try : c = int (c) if c > l or c < 1 : os.system( "clear" ) print ( "[Warning]:There is no" ) continue del hosts[c - 1 ] is_y = True except : is_alias = True if is_alias: if c.strip() = = "#q" : os.system( "clear" ) break n = 0 for l in hosts: if c.strip() = = l.split( " " )[ 4 ].strip(): del hosts[n] is_y = True n + = 1 if not is_y: os.system( "clear" ) print ( "[Warning]:There is no" ) continue else : # save # 再次确认是否删除 c = raw_input ( "Remove?[y/n]:" ) if c.strip().upper() = = "Y" : of = open ( "{}/data/information.d" . format (path), "w" ) for l in hosts: of.write(l) print ( "Remove the success!" ) of.close() def str_format(lable, rule): ''' 用于验证输入的数据格式 :param lable: :param rule: :return: ''' while 1 : print ( "{} ('#q' exit)" . format (lable)) temp = raw_input ().strip() m = re.match(r "{}" . format (rule), temp) if m: break elif "port" in lable: temp = 22 break elif temp.strip() = = "#q" : os.system( "clear" ) break os.system( "clear" ) print ( "[Warning]:Invalid format" ) return temp |
2. 我们再添加一个函数在setting.py用于输出我们的信息,也就是about me。
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def about(): ''' 输出关于这个程序的信息 :return: ''' of = open ( "{}/bin/about.dat" . format (path)) rf = of.read() try : info = eval (rf) os.system( "clear" ) print ( "================About osnssh================" ) for k,v in info.items(): print ( "{}: {}" . format (k, v)) except : print ( "For failure." ) return |
然后在bin目录下面建立个文件about.dat写入我们的一些信息,比如:
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{ "auther" : "Allen Woo" , "Introduction" : "In Linux or MAC using SSH, do not need to enter the IP and password for many times" , "Home page" :"", "Download address" : "https://github.com/osnoob/osnssh" , "version" : "1.1.0" , "email" : "xiaopingwoo@163.com" } |
好了设置程序就这样了:
2. 自动登录远程服务器程序:在bin建个py文件叫auto_ssh.py:
注意:这里我们需要先安装个包叫:pexpect, 用户终端交互,捕捉交互信息实现自动输入密码。
安装pexpect:
pip install pexpect
然后开始写代码:
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#!/usr/bin/env python #-*-coding:utf-8-*- import os, sys, base64 import pexpect path = os.path.dirname(os.path.abspath(sys.argv[ 0 ])) def choose(): # 打开我们的数据文件 of = open ( "{}/data/information.d" . format (path)) hosts = of.readlines() hosts_temp = [] for h in hosts: if h.strip(): hosts_temp.append(h) hosts = hosts_temp[:] l = len (hosts) if l < = 0 : os.system( "clear" ) print ( "[Warning]Please add the host server" ) return while 1 : print ( "=================SSH===================" ) print ( "+{}+" . format ( "-" * 40 )) print ( "| Alias UserName@IP:PORT" ) for i in range ( 0 , l): v_list = hosts[i].strip().split( " " ) print ( "+{}+" . format ( "-" * 40 )) print ( "| {} | {} {}@{}:{}" . format (i + 1 , v_list[ 4 ], v_list[ 0 ], v_list[ 1 ], v_list[ 2 ])) print ( "+{}+" . format ( "-" * 40 )) c = raw_input ( "[SSH]Choose the number or alias('#q' exit):" ) is_alias = False is_y = False try : c = int (c) if c > l or c < 1 : os.system( "clear" ) print ( "[Warning]:There is no" ) continue l_list = hosts[c - 1 ].split( " " ) name = l_list[ 0 ] host = l_list[ 1 ] port = l_list[ 2 ] password = l_list[ 3 ] is_y = True except : is_alias = True if is_alias: if c.strip() = = "#q" : os.system( "clear" ) return for h in hosts: if c.strip() = = h.split( " " )[ 4 ].strip(): l_list = h.split( " " ) name = l_list[ 0 ] host = l_list[ 1 ] port = l_list[ 2 ] password = l_list[ 3 ] is_y = True if not is_y: continue # ssh # 将加密保存的密码解密 password = base64.decodestring(password) print ( "In the connection..." ) # 准备远程连接,拼接ip:port print ( "{}@{}" . format (name, host)) if port = = "22" : connection( "ssh {}@{}" . format (name, host), password) else : connection( "ssh {}@{}:{}" . format (name, host, port), password) def connection(cmd, pwd): ''' 连接远程服务器 :param cmd: :param pwd: :return: ''' child = pexpect.spawn(cmd) i = child.expect([ ".*password.*" , ".*continue.*?" , pexpect.EOF, pexpect.TIMEOUT]) if ( i = = 0 ): # 如果交互中出现.*password.*,就是叫我们输入密码 # 我们就把密码自动填入下去 child.sendline( "{}\n" . format (pwd)) child.interact() elif ( i = = 1 ): # 如果交互提示是否继续,一般第一次连接时会出现 # 这个时候我们发送"yes",然后再自动输入密码 child.sendline( "yes\n" ) child.sendline( "{}\n" . format (pwd)) #child.interact() else : # 连接失败 print ( "[Error]The connection fails" ) |
好了,现在我们只需要启动文件了,也就是打开程序后的第一个菜单
3.再osnssh目录下建个osnssh.py 文件:
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#!/usr/bin/env python #-*-coding:utf-8-*- import os, sys sys.path.append( "../" ) from bin import setting, auto_ssh path = os.path.dirname(os.path.abspath(sys.argv[ 0 ])) ''' 方便在LINUX终端使用ssh,保存使用的IP:PORT , PASSWORD 自动登录 __author__ = 'allen woo' ''' def main(): while 1 : print ( "==============OSNSSH [Menu]=============" ) print ( "1.Connection between a host\n2.Add host\n3.Remove host\n4.About\n[Help]: q:quit clear:clear screen" ) print ( "=" * 40 ) c = raw_input ( "Please select a:" ) if c = = 1 or c = = "1" : auto_ssh.choose() if c = = 2 or c = = "2" : setting.add_host_main() if c = = 3 or c = = "3" : setting.remove_host() if c = = 4 or c = = "4" : setting.about() elif c = = "clear" : os.system( "clear" ) elif c = = "q" or c = = "Q" or c = = "quit" : print ( "Bye" ) sys.exit() else : print ( "\n" ) if __name__ = = '__main__' : try : of = open ( "{}/data/information.d" . format (path)) except : of = open ( "{}/data/information.d" . format (path), "w" ) of.close() main() |
终于写完了,我们可以试一试了:
$python osnssh.py
以上这篇用python写个自动SSH登录远程服务器的小工具(实例)就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。