Python实现的使用telnet登陆聊天室实例

本文实例讲述了Python实现的使用telnet登陆聊天室。分享给大家供大家参考。具体如下：

前久在家学习Python的时候写的一个简单的聊天室，可以使用telnet来登陆。

遗憾的是现在对中文的支持很差，英文聊天倒是没什么问题了。

功能很简单的，应该没有你想象的那么强大，但是你如果有兴趣的话可以试试的。

另外，让我惊奇的是它可以在Android的平板上运行SL4A的Python解释器上运行（需要稍微改几句代码，貌似是编码的那个地方，我记不清了）。

现在这个是可以在PC上跑起来的。

废话不多，直接放代码了，就一个py文件而已，而且注释是乱七八糟的，编码风格也不好（好神似我在用类C语言的习惯）。

# Filename: ChatRoomServer.py import threading import datetime import socket # a simple log function def log(lg):   print(lg) # Chat room server listen thread class, this class is use for listening client login # when a client request to connect server, this class will start a connect thread class ServerListenThread(threading.Thread):   def __init__(self, hostname, port, accept):     threading.Thread.__init__(self)     self.hostname = hostname     self.port = port     self.accept = accept     self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)     self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)     self.sock.bind((hostname, port))     self.sock.listen(0)     log('ServerIp:%s ServerPort:%s waiting for client...'%self.sock.getsockname())   def run(self):     clientid = 1     while True:       client, cltadd = self.sock.accept()       log('a request from Id=%s%s'%('%d Address:'%clientid , cltadd))       if self.accept(clientid, client):         clientid = clientid + 1 # Connect thread class, this class is use for connecting with client and receiving client's message class ServerConnectThread(threading.Thread):   def __init__(self, clientid, client, encoding, receive, disconnect):    threading.Thread.__init__(self)     self.client = client     self.clientid = clientid     self.encoding = encoding     self.receive = receive     self.disconnect = disconnect     self.clientname = None     self.inputs = self.client.makefile('rb', 0)     self.outputs = self.client.makefile('wb', 0)   def run(self):     self.sendstring('Input your name:')     while True:       string = self.readline()       if string:         string = string.lstrip()         if len(string)>0:           self.receive(self, string)       else:         self.inputs.close()         self.outputs.close()         break     if self.clientname:       self.disconnect(self)   def sendstring(self, string):     self.sendbytes(bytes(string, self.encoding))   def sendbytes(self, bts):     self.outputs.write(bts)   def readline(self):     rec = self.inputs.readline()     if rec:       string = bytes.decode(rec, self.encoding)       if len(string)>2:         string = string[0:-2]       else:         string = ' '     else:       string = False     return string # Chat room server class, this class is constitute of a listen thread and many connect thread class ChatRoomServer:   def __init__(self, ip='0.0.0.0', port=9113, encoding='utf-8'):     self.hostname = ip     self.encoding = encoding     self.port = port     self.clients = {}     self.clientnames = {}   def whenconnect(self, clientid, client):     log('a connect with Id=%s%s'%('%d Address:'%clientid , client.getpeername()))     connect = ServerConnectThread(clientid, client, self.encoding, self.whenreceive, self.whenexit)      connect.start()     return True   def whenreceive(self, client, string):     log('frome %d, receive:%s (%d)'%(client.clientid, string, len(string)))     if client.clientname:       if string[0]=='.':         self.handlecmd(client, string[1:])       else:         now = datetime.datetime.now()         sendstring = '%s %s/r/n %s/r/n'%(now, client.clientname, string)         self.sendtoall(sendstring, client)     else:       if self.clientnames.__contains__(string):         client.sendstring('%s is exited!!!/r/n'%string)       else:         client.clientname = string         client.sendstring('Hell, %s!!!/r/n'%client.clientname)         self.addclient(client)     return True   def whenexit(self, client):     self.delclient(client)     return True   def handlecmd(self, client, cmd):     log('cmd: %s'%cmd)     if cmd=='user':       client.sendstring('User list(%d):/r/n'%len(self.clients))       for i in self.clients:         clt = self.clients[i]         client.sendstring(' %d/t%s/r/n'%(clt.clientid, clt.clientname))     else:       client.sendstring('Unknow command: %s:/r/n'%cmd)   def start(self):     serverlisten = ServerListenThread(self.hostname, self.port, self.whenconnect)     serverlisten.start()   def sendtoall(self, string, notfor):     sends = bytes(string, self.encoding)     for i in self.clients:       if not(notfor and notfor.clientid==i):         self.clients[i].sendbytes(sends)   def addclient(self, client):     self.sendtoall('%s logined!!!/r/n'%client.clientname, client)     self.clients[client.clientid] = client     self.clientnames[client.clientname] = client.clientid   def delclient(self, client):     self.sendtoall('%s logouted!!!/r/n'%client.clientname, client)     del self.clients[client.clientid]     del self.clientnames[client.clientname] # start a chat room server ChatRoomServer().start()