import socket

import hashlib

import subprocess

import struct

phone = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

phone.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,)   #重用地址

phone.bind(('192.168.20.105',))

phone.listen()

while :

    conn,addr=phone.accept()

    print('线路是%s' % conn)

    print('地址是',addr)

    tag = True

    while :

        while tag:

            user = conn.recv().decode('utf-8')

            pwd = conn.recv().decode('utf-8')

            md5_obj = hashlib.md5(user.encode('utf-8'))

            s = pwd+user

            print(s)

            md5_obj.update(s.encode('utf-8'))

            pwd = md5_obj.hexdigest()

            print(pwd)

            if user == 'egon'and pwd=='82bdb4164c14585f32e70ec0a37b3569':

                conn.send('right'.encode('utf-8'))

                tag = False

                break

            else:

                conn.send('用户名或密码错误，请重新输入！'.encode('utf-8'))

        try:

            cmd = conn.recv()

            res = subprocess.Popen(cmd.decode('utf-8'),shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE)

            mes = res.stdout.read()

            mesr = res.stderr.read()

            ret = struct.pack('i',(len(mes)+len(mesr)))

            conn.send(ret)

            conn.send(mes)

            conn.send(mesr)

        except Exception:

            break

    conn.close()

phone.close()

import socket

import time

import struct

phone = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

phone.connect(('192.168.20.105',))

tag = True

while :

    while tag:

        user = input('username:')

        phone.send(user.encode('utf-8'))

        pwd = input('password:')

        phone.send(pwd.encode('utf-8'))

        time.sleep()

        mes = phone.recv().decode('utf-8')

        print(mes)

        if mes =='right':

            tag = False

            break

    cmd = input('>>:')

    if not cmd:continue

    phone.send(cmd.encode('utf-8'))

    lens = phone.recv()

    lens = struct.unpack('i',lens)

    lens = lens[]

    mes = phone.recv()

    mes_size =

    while mes_size<lens:

        if lens-mes_size>:

            mes+=phone.recv()

        else:

            mes+=phone.recv(lens-mes_size)

        mes_size +=

    print(mes.decode('gbk'))

phone.close()