原
python实现简单聊天应用（群聊和点对点均实现）
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<span class="time">2017年09月12日 00:45:48</span>
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<p>后续代码更新和功能添加会提交到<a href="https://github.com/LockeyCheng/python-p2p-chating/tree/master" rel="nofollow" target="_blank">个人github主页</a>，有兴趣可以一起来完善！</p>
如果只是拿过去运行看结果，请注意平台相关性以及python版本号，本示例开发运行平台为win7x86_64 pycharm community，python版本号为3.5!!!
TALK IS CHEAP, SHOW YOU MY CODE:
客户端
#coding:utf-8
'''
file:client.py.py
date:2017/9/11 11:01
author:lockey
email:[email protected]
platform:win7.x86_64 pycharm python3
desc:p2p communication clientside
'''
from socket import *
import threading,sys,json,re
#引入json模块主要是为了数据的封装传输，re的话是做一些合法性的验证
HOST = '192.168.1.7'
PORT=8022
BUFSIZE = 1024 ##缓冲区大小 1K
ADDR = (HOST,PORT)
myre = r"^[_a-zA-Z]\w{0,}"
tcpCliSock = socket(AF_INET,SOCK_STREAM)
#创建一个socket连接
userAccount = None
#用户登录标志，也用来记录登录的用户名称
def register():
#用户注册函数
print("""
Glad to have you a member of us!
""")
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
regInfo = [accout,password1,'register']
datastr = json.dumps(regInfo)
tcpCliSock.send(datastr.encode('utf-8'))
data = tcpCliSock.recv(BUFSIZE)
data = data.decode('utf-8')
if data == '0':
print('Success to register!')
return True
elif data == '1':
print('Failed to register, account existed!')
return False
else:
print('Failed for exceptions!')
return False
def login():
#用户登录函数
print("""
Welcome to login in!
""")
accout = input('Account: ')
if not re.findall(myre, accout):
print('Account illegal!')
return None
password = input('Password: ')
if not password:
print('Password illegal!')
return None
global userAccount
userAccount = accout
loginInfo = [accout, password,'login']
datastr = json.dumps(loginInfo)
tcpCliSock.send(datastr.encode('utf-8'))
data = tcpCliSock.recv(BUFSIZE)
if data == '0':
print('Success to login!')
return True
else:
print('Failed to login in(user not exist or username not match the password)!')
return False
def addGroup():
#群组添加
groupname = input('Please input group name: ')
if not re.findall(myre, groupname):
print('group name illegal!')
return None
return groupname
def chat(target):
#进入聊天（群聊和点对点聊天可以选择）
while True:
print('{} -> {}: '.format(userAccount,target))
msg = input()
if len(msg) > 0 and not msg in 'qQ':
if 'group' in target:
optype = 'cg'
else:
optype = 'cp'
dataObj = {'type': optype, 'to': target, 'msg': msg, 'froms': userAccount}
datastr = json.dumps(dataObj)
tcpCliSock.send(datastr.encode('utf-8'))
continue
elif msg in 'qQ':
break
else:
print('Send data illegal!')
class inputdata(threading.Thread):
#用户输入选择然后执行不同的功能程序
def run(self):
menu = """
(CP): Chat with individual
(CG): Chat with group member
(AG): Add a group
(EG): Enter a group
(H): For help menu
(Q): Quit the system
"""
print(menu)
while True:
operation = input('Please input your operation("h" for help): ')
if operation in 'cPCPCpcp':
#进入个人聊天
target = input('Who would you like to chat with: ')
chat(target)
continue
if operation in 'cgCGCgcG':
#进入群聊
target = input('Which group would you like to chat with: ')
chat('group'+target)
continue
if operation in 'agAGAgaG':
#添加群组
groupName = addGroup()
if groupName:
dataObj = {'type': 'ag', 'groupName': groupName}
dataObj = json.dumps(dataObj)
tcpCliSock.send(dataObj.encode('utf-8'))
continue
if operation in 'egEGEgeG':
#入群
groupname = input('Please input group name fro entering: ')
if not re.findall(myre, groupname):
print('group name illegal!')
return None
dataObj = {'type': 'eg', 'groupName': 'group'+groupname}
dataObj = json.dumps(dataObj)
tcpCliSock.send(dataObj.encode('utf-8'))
continue
if operation in 'hH':
print(menu)
continue
if operation in 'qQ':
sys.exit(1)
else:
print('No such operation!')
class getdata(threading.Thread):
#接收数据线程
def run(self):
while True:
data = tcpCliSock.recv(BUFSIZE).decode('utf-8')
if data == '-1':
print('can not connect to target!')
continue
if data == 'ag0':
print('Group added!')
continue
if data == 'eg0':
print('Entered group!')
continue
if data == 'eg1':
print('Failed to enter group!')
continue
dataObj = json.loads(data)
if dataObj['type'] == 'cg':
#群组消息的格式定义
print('{}(from {})-> : {}'.format(dataObj['froms'], dataObj['to'], dataObj['msg']))
else:
#个人消息的格式定义
print('{} ->{} : {}'.format(dataObj['froms'], userAccount, dataObj['msg']))
def main():
try:
tcpCliSock.connect(ADDR)
print('Connected with server')
while True:
loginorReg = input('(l)ogin or (r)egister a new account: ')
if loginorReg in 'lL':
log = login()
if log:
break
if loginorReg in 'rR':
reg = register()
if reg:
break
myinputd = inputdata()
mygetdata = getdata()
myinputd.start()
mygetdata.start()
myinputd.join()
mygetdata.join()
except Exception:
print('error')
tcpCliSock.close()
sys.exit()
if __name__ == '__main__':
main()
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服务端
#coding:utf-8
'''
file:server.py
date:2017/9/11 14:43
author:lockey
email:[email protected]
platform:win7.x86_64 pycharm python3
desc:p2p communication serverside
'''
import socketserver,json,time
import subprocess
connLst = []
groupLst = []
## 代号 地址和端口 连接对象
#optype = {'ag':'group adding','cp':'chat with individual','cg':'chat with group'}
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 Group(object):#群组类
def __init__(self,groupname,groupOwner):
self.groupId = 'group'+str(len(groupLst)+1)
self.groupName = 'group'+groupname
self.groupOwner = groupOwner
self.createTime = time.time()
self.members=[groupOwner]
class MyServer(socketserver.BaseRequestHandler):
def handle(self):
print("got connection from",self.client_address)
userIn = False
global connLst
global groupLst
while not userIn:
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时进行用户注册或者登陆
ret = '0'
if type(dataobj) == list and not userIn:
account = dataobj[0]
password = dataobj[1]
optype = dataobj[2]
existuser = False
if len(connLst) > 0:
for obj in connLst:
if obj.account == account:
existuser = True
if obj.password == password:
userIn = True
print('{} has logged in system({})'.format(account,self.client_address))
break
if optype == 'login' and (not userIn or not existuser):
ret = '1'
print('{} failed to logged in system({})'.format(account, self.client_address))
else:
if existuser:
ret = '1'
print('{} failed to register({}),account existed!'.format(account, self.client_address))
else:
try:
conObj = Connector(account,password,self.client_address,self.request)
connLst.append(conObj)
print('{} has registered to system({})'.format(account,self.client_address))
userIn = True
except:
print('%s failed to register for exception!'%account)
ret = '99'
conn.sendall(ret.encode('utf-8'))
if ret == '0':
break
while True:
#除登陆注册之外的请求的监听
conn = self.request
data = conn.recv(1024)
if not data:
continue
print(data)
dataobj = data.decode('utf-8')
dataobj = json.loads(dataobj)
if dataobj['type'] == 'ag' and userIn:
#如果判断用户操作请求类型为添加群组则进行以下操作
groupName = dataobj['groupName']
groupObj = Group(groupName,self.request)
groupLst.append(groupObj)
conn.sendall('ag0'.encode('utf-8'))
print('%s added'%groupName)
continue
if dataobj['type'] == 'eg' and userIn:
#入群操作
groupName = dataobj['groupName']
ret = 'eg1'
for group in groupLst:
if groupName == group.groupName:
group.members.append(self.request)
print('{} added into {}'.format(self.client_address,groupName))
ret = 'eg0'
break
conn.sendall(ret.encode('utf-8'))
continue
#客户端将数据发给服务器端然后由服务器转发给目标客户端
print('connLst',connLst)
print('grouplst',groupLst)
if len(connLst) > 1:
sendok = False
if dataobj['type'] == 'cg':
#群内广播（除发消息的人）
print('group',data)
for obj in groupLst:
if obj.groupName == dataobj['to']:
for user in obj.members:
if user != self.request:
user.sendall(data)
else:
#个人信息发送
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('-1'.encode('utf-8'))
continue
if __name__ == '__main__':
server = socketserver.ThreadingTCPServer(('192.168.1.7',8022),MyServer)
print('waiting for connection...')
server.serve_forever()
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运行结果示例
服务端（记录着各客户端的操作）：
客户端1：
有注册、建群、群聊、点对点聊天
客户端2：
客户端3：
要拷贝代码运行的话请注意平台（win7.x86_64）和python版本号(python3.5)！！！
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版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/Lockey23/article/details/77940518 </div>
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