python點對點簡單實現

這篇文章主要為大家詳細介紹了python實現簡單點對點p2p聊天，具有一定的參考價值，感興趣的小伙伴們可以參考一下

點對點聊天首先是基於多線程的網絡編程，其次就是將每一個連接都保存為一個具有獨一屬性的物件並添加到連接列表中，對於每一個連接物件發送過來的信息必須要包含主要的三項內容（from,to,messages），這樣當訊息傳送到伺服器之後伺服器根據to的連線物件遍歷連線清單找到目標物件將訊息傳送給目標，目標拿到訊息後就知道是誰寄過來的，然後根據id號碼回覆。此實作將會持續完善，後續新加功能將會在我個人github首頁展現

伺服器端實作：

#coding:utf-8
'''
file:server.py
date:2017/9/10 12:43
author:lockey
email:lockey@123.com
platform:win7.x86_64 pycharm python3
desc:p2p communication serverside
'''
import socketserver,json
import subprocess

connLst = []
## 连接列表，用来保存一个连接的信息（代号 地址和端口 连接对象）
class Connector(object):#连接对象类
 def __init__(self,account,password,addrPort,conObj):
 self.account = account
 self.password = password
 self.addrPort = addrPort
 self.conObj = conObj


class MyServer(socketserver.BaseRequestHandler):

 def handle(self):
 print("got connection from",self.client_address)
 register = False
 while True:
  conn = self.request
  data = conn.recv(1024)
  if not data:
  continue
  dataobj = json.loads(data.decode('utf-8'))
  #如果连接客户端发送过来的信息格式是一个列表且注册标识为False时进行用户注册
  if type(dataobj) == list and not register:
  account = dataobj[0]
  password = dataobj[1]
  conObj = Connector(account,password,self.client_address,self.request)
  connLst.append(conObj)
  register = True
  continue
  print(connLst)
  #如果目标客户端在发送数据给目标客服端
  if len(connLst) > 1 and type(dataobj) == dict:
  sendok = False
  for obj in connLst:
   if dataobj['to'] == obj.account:
   obj.conObj.sendall(data)
   sendok = True
  if sendok == False:
   print('no target valid!')
  else:
  conn.sendall('nobody recevied!'.encode('utf-8'))
  continue

if __name__ == '__main__':
 server = socketserver.ThreadingTCPServer(('192.168.1.4',8022),MyServer)
 print('waiting for connection...')
 server.serve_forever()

客戶端實作：

#coding:utf-8
'''
file:client.py.py
date:2017/9/10 11:01
author:lockey
email:lockey@123.com
platform:win7.x86_64 pycharm python3
desc:p2p communication clientside
'''
from socket import *
import threading,sys,json,re

HOST = '192.168.1.4' ##
PORT=8022
BUFSIZ = 1024 ##缓冲区大小 1K
ADDR = (HOST,PORT)

tcpCliSock = socket(AF_INET,SOCK_STREAM)
tcpCliSock.connect(ADDR)
userAccount = None
def register():
 myre = r"^[_a-zA-Z]\w{0,}"
 #正则验证用户名是否合乎规范
 accout = input('Please input your account: ')
 if not re.findall(myre, accout):
 print('Account illegal!')
 return None
 password1 = input('Please input your password: ')
 password2 = input('Please confirm your password: ')
 if not (password1 and password1 == password2):
 print('Password not illegal!')
 return None
 global userAccount
 userAccount = accout
 return (accout,password1)

class inputdata(threading.Thread):
 def run(self):
 while True:
  sendto = input('to>>:')
  msg = input('msg>>:')
  dataObj = {'to':sendto,'msg':msg,'froms':userAccount}
  datastr = json.dumps(dataObj)
  tcpCliSock.send(datastr.encode('utf-8'))


class getdata(threading.Thread):
 def run(self):
 while True:
  data = tcpCliSock.recv(BUFSIZ)
  dataObj = json.loads(data.decode('utf-8'))
  print('{} -> {}'.format(dataObj['froms'],dataObj['msg']))


def main():
 while True:
 regInfo = register()
 if regInfo:
  datastr = json.dumps(regInfo)
  tcpCliSock.send(datastr.encode('utf-8'))
  break
 myinputd = inputdata()
 mygetdata = getdata()
 myinputd.start()
 mygetdata.start()
 myinputd.join()
 mygetdata.join()


if __name__ == '__main__':
 main()

執行結果範例：

伺服器端結果：

##客戶端1：

 

客戶端2：

 

客戶端3：

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