python网络编程--模拟ssh

【模拟ssh】

使用subprocess模块

 

案例：

 

服务端：

import socket
import subprocess

server = socket.socket()
server.bind(('127.0.0.1',8811))
server.listen(5)

while 1:
    conn,addr = server.accept()
    while 1:
        try :
            cmd = conn.recv(1024).decode('utf8')
            if cmd == 'exit':
                break
                
            res = subprocess.Popen(cmd,    #执行系统命令
                                   shell=True,
                                   stderr = subprocess.PIPE,
                                   stdout = subprocess.PIPE
                                   )
            out = res.stdout.read()  #这是执行结果的正确信息
            err= res.stderr.read()   #这是执行结果的错误信息
            conn.send(out)
        except Exception as e :
            break
    conn.close()

 

 

客户端：

import subprocess

  import socket

  

cli = socket.socket()

cli.connect(('127.0.0.1',8811))

  

cmd = input(">>>")

cli.send(cmd.encode('gbk'))

data = cli.recv(1024)

  print(data.decode('gbk'))