socket模块

1

1.1 server:

#!/use/local/env python
# -*- coding:utf-8 -*-

import socket

ip_port = ('127.0.0.1', 9999)
#ip_port = ('0.0.0.0', 9999)        #所有IP
sk = socket.socket()
sk.bind(ip_port)
sk.listen(5)

while True:
    print('server wainting ...')
    conn, add = sk.accept()

    client_data = conn.recv(1024)
    print(str(client_data, encoding='utf-8'))
    conn.sendall(bytes('不要回答，不要回答，不要回答', encoding='utf-8'))
    # conn.sendall(bytes('不要回答，不要回答，不要回答', 'utf-8'))
    # conn.sendall(bytes('不要回答，不要回答，不要回答', 'utf8'))

    conn.close()

1.2 client:

#!/use/local/env python
# -*- coding:utf-8 -*-

import socket

ip_port = ('127.0.0.1', 9999)
sk = socket.socket()
sk.connect(ip_port)

sk.sendall(bytes('请求占领地球,请求占领地球,请求占领地球', encoding='utf-8'))
server_reply = sk.recv(1024)
print(str(server_reply, encoding='utf-8'))
sk.close()

2
2.1 server:

#!/use/local/env python
# -*- coding:utf-8 -*-

import socket

ip_port = ('127.0.0.1', 9999)
#ip_port = ('0.0.0.0', 9999)        #所有IP
sk = socket.socket()
sk.bind(ip_port)
sk.listen(5)

while True:
    print('server wainting ...')
    conn, add = sk.accept()

    client_data = conn.recv(1024)               #字符数
    print(str(client_data, encoding='utf-8'))
    conn.sendall(bytes('不要回答，不要回答，不要回答', encoding='utf-8'))
    # conn.sendall(bytes('不要回答，不要回答，不要回答', 'utf-8'))
    # conn.sendall(bytes('不要回答，不要回答，不要回答', 'utf8'))

    while True:
        try:
            client_data2 = conn.recv(1024)
        except Exception:
            break
        conn.send(client_data2)

    conn.close()

2.2 client:

#!/use/local/env python
# -*- coding:utf-8 -*-

import socket

ip_port = ('127.0.0.1', 9999)
sk = socket.socket()
sk.connect(ip_port)

sk.sendall(bytes('请求占领地球,请求占领地球,请求占领地球', encoding='utf-8'))
server_reply = sk.recv(1024)
print(str(server_reply, encoding='utf-8'))
while True:
    user_input = input(">>").strip()
    sk.sendall(bytes(user_input, encoding='utf-8'))
    server_reply2 = sk.recv(1024)
    print(str(server_reply2, encoding='utf-8'))

sk.close()

3 ssh_socket
3.1 server

#!/usr/local/env python
# -*- coding:utf-8 -*-

import socket, subprocess

num = 100

sk = socket.socket()
ip_port = ('0.0.0.0', 9999)
sk.bind(ip_port)
sk.listen(5)

count = 0
while True:
    count += 1
    print("server is waiting [%s]..." %count)
    conn, add = sk.accept()
    #client_data = conn.recv(1024)
    #print(str(client_data, encoding='utf-8'))
    #conn.sendall(bytes('不要回答{3}', encoding='utf-8'))

    while True:
        client_data = conn.recv(num)
        if not client_data:
            print('recv is empty')
            break
        cmd_str = str(client_data, encoding='utf-8')
        cmd_call = subprocess.Popen(cmd_str, shell=True, stdout=subprocess.PIPE)
        cmd_res = cmd_call.stdout.read()
        if len(cmd_res) == 0:
        #if not cmd_res:
            cmd_res = b"has no output!\n"
        conn.send(cmd_res)
    conn.close()

3.2 client

#!/usr/local/env python
# -*- encoding:utf-8 -*-

import socket

num = 100
sk = socket.socket()
ip_port = ('10.100.11.211', 9999)
sk.connect(ip_port)

while True:
    user_input = input('cmd>').strip()
    if len(user_input) == 0:
        continue
    elif user_input == 'q':
        break
    sk.sendall(bytes(user_input, encoding='utf-8'))

    server_data = sk.recv(num)
    print(str(server_data, encoding='utf-8'), end='')
    while not (len(server_data) < num):
        server_data = sk.recv(num)
        print(str(server_data, encoding='utf-8'), end='')
sk.close()

4 ssh传大数据
4.1 server

#!/usr/local/env python
# -*- coding:utf-8 -*-

import socket, subprocess

num = 500

sk = socket.socket()
ip_port = ('0.0.0.0', 9999)
sk.bind(ip_port)
sk.listen(5)

count = 0
while True:
    count += 1
    print("server is waiting [%s]..." %count)
    conn, add = sk.accept()
    #client_data = conn.recv(1024)
    #print(str(client_data, encoding='utf-8'))
    #conn.sendall(bytes('不要回答{3}', encoding='utf-8'))

    while True:
        client_data = conn.recv(num)
        if not client_data:
            print('recv is empty')
            break
        cmd_str = str(client_data, encoding='utf-8')
        cmd_call = subprocess.Popen(cmd_str, shell=True, stdout=subprocess.PIPE)
        cmd_res = cmd_call.stdout.read()
        if len(cmd_res) == 0:
        #if not cmd_res:
            cmd_res = b"has no output!\n"
        CMD_RES_SIZE_MSG = bytes('SEND_DATA_SIZE:%s' %(len(cmd_res)), encoding='utf-8')

        conn.send(CMD_RES_SIZE_MSG)
        conn.recv(50)
        conn.send(cmd_res)
    conn.close()

4.2 client

#!/usr/local/env python
# -*- encoding:utf-8 -*-

import socket

num = 500
sk = socket.socket()
ip_port = ('10.100.11.211', 9999)
sk.connect(ip_port)

while True:
    user_input = input('cmd>').strip()
    if len(user_input) == 0:
        continue
    elif user_input == 'q':
        break
    sk.sendall(bytes(user_input, encoding='utf-8'))

    CMD_SIZE_MSG = sk.recv(50)
    CMD_SIZE_MSG = str(CMD_SIZE_MSG, encoding='utf-8')
    #CMD_RES_SIZE_MSG = 'SEND_DATA_SIZE:%s' %(len(cmd_res))
    CDM_SIZE_GET = CMD_SIZE_MSG.split(':')
    CMD_SIZE = 0
    if CDM_SIZE_GET[0] == 'SEND_DATA_SIZE':
        CMD_SIZE = int(CDM_SIZE_GET[1])
        CMD_ACK = b'ready'
        sk.send(CMD_ACK)

    recv_size = 0
    while recv_size < CMD_SIZE:
        server_data = sk.recv(num)
        recv_size += len(server_data)
        print(str(server_data, encoding='utf-8'), end='')

    #print(str(server_data, encoding='utf-8'), end='')
    #while not (len(server_data) < num):
    #    server_data = sk.recv(num)
    #    print(str(server_data, encoding='utf-8'), end='')
sk.close()