import socket

# 創建一個servicesocke
serviceSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 給服務器綁定地址(ip地址,端口號)
serviceSocket.bind(("192.168.171.1", 80))

print("等待客戶端接入")
# sock 是客戶端的socket信息
# addr 是客戶端的地址(ip,端口)
sock, addr = serviceSocket.accept()
print(f"sock from client:{sock}")
print(f"addr of client:{addr}")

while True:
  # 接收客戶端的請求
  recvData = sock.recv(1024)
  print("客戶端說:%s" % (recvData.decode("utf-8")))
  sendData = input("服務器說:")
  # 發送(回復)數據給客戶端
  sock.send(sendData.encode("utf-8"))

import socket

# 創建客戶端socket
clientSocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 連接服務器
clientSocket.connect(("192.168.171.1", 80))

while True:
  # 發送消息給服務器
  sendData = input("客戶端說:")
  if sendData == "bye":
    clientSocket.send(sendData.encode("utf-8")) # 編碼:將數據裝換成二進制形式
    break
  clientSocket.send(sendData.encode("utf-8"))
  recvData = clientSocket.recv(1024)
  print("服務器說:%s" % (recvData.decode("utf-8"))) # 解碼:將二進制轉換成字符

# from socketserver import TCPServer, BaseRequestHandler, ThreadingTCPServer
from socketserver import TCPServer, StreamRequestHandler, ThreadingMixIn
import traceback

# class MyBaseRequestHandler(BaseRequestHandler):
class MyBaseRequestHandler(StreamRequestHandler):

  def handle(self):
    self.addr = self.request.getpeername()
    self.server.users[self.addr[1]] = self.request
    message = "IP " + self.addr[0] + ":" + str(self.addr[1]) + " Connected..."
    print(message)

    while True:
      try:
        data = self.request.recv(1024).decode('UTF-8', 'ignore').strip()
        print(f'receive from {self.client_address}:{data}')

        back_data = (f"response\"" + data + "\":\n").encode("utf8")
        self.request.sendall(back_data)
      except:
        traceback.print_exc()
        break

# 源碼：class ThreadingTCPServer(ThreadingMixIn, TCPServer): pass
# 從ThreadingMixIn和TCPServer繼承，實現多線程
class MyThreadingTCPServer(ThreadingMixIn, TCPServer):
  def __init__(self, server_address, RequestHandlerClass):
    TCPServer.__init__(self, server_address, RequestHandlerClass)
    self.users = {}


class MyTCPserver():
  def __init__(self, server_addr='192.168.1.109', server_port=23):
    self.server_address = server_addr
    self.server_port = server_port
    self.server_tuple = (self.server_address, self.server_port)

  def run(self):
    # server = TCPServer(self.server_tuple, MyBaseRequestHandler)
    server = MyThreadingTCPServer(self.server_tuple, MyBaseRequestHandler)
    server.serve_forever()


if __name__ == '__main__':
  myserver = MyTCPserver()
  myserver.run()

import socket
import time

class MyClient:
  host = '192.168.1.109'
  port = 23
  bufsiz = 1024
  addr = None
  skt = None

  def __init__(self, host=None, port=None):
    if host != None:
      self.host = host

    if port != None:
      self.port = port

    if self.addr == None:
      self.addr = (self.host, self.port)

    self.doConnection()

  def doConnection(self):
    try:
      self.skt = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      self.skt.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
      print(self.addr)
      self.skt.connect(self.addr)
    except:
      pass

  def run(self):
    while True:
      try:
        _time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        self.skt.sendall(f'{_time}:i am clent1 '.encode('utf-8'))
        data = self.skt.recv(self.bufsiz)
        print(data.decode('utf-8', 'ignore'))
        if not data:
          break
        print(data.strip())
        time.sleep(5)
      except socket.error:
        print('socket error, reconnection') # 自動重連
        time.sleep(3)
        self.doConnection()
      except:
        print('other error')

    self.skt.close()


myclient = MyClient()
myclient.run()