Python 通过Socket实现SSH

Python 通过Socket实现SSH

刚刚看了Itercast的Python Socket视频,就想到Socket能够在主机间收发信息,那加个命令执行不就是SSH了吗?

于是开始动手写一个试试.

服务器:

import socket  
import os

server = socket.socket()
host = socket.gethostname()
port = 12345
server.bind((host,port))

server.listen(1)

while(True):
    conn,addr = server.accept()
    print("Connection Established.")
    while(True):
        cmd = conn.recv(1024)
        result = os.popen(cmd.decode()).read()
        conn.send(result.encode('utf-8'))
    print("Connection Interrupted.")

server.close()

客户端:

import socket

client = socket.socket()
host = socket.gethostname()
port = 12345

client.connect((host,port))

while(True):
    cmd = input(">")
    client.send(cmd.encode('utf-8'))
    result = client.recv(4096).decode()
    print(result)

client.close()

结果:

心得:

这就是最简单的一个小程序,存在很多问题需要解决,比如命令执行结果过长怎么办?粘包怎么办?

但是复习Socket,玩一玩还是很开心的.