|
| 1 | +from twisted.internet.protocol import Factory |
| 2 | +from twisted.protocols.basic import LineReceiver |
| 3 | +from twisted.internet import reactor |
| 4 | + |
| 5 | +class Chat(LineReceiver): |
| 6 | + def __init__(self, users): |
| 7 | + self.users = users |
| 8 | + self.name = None |
| 9 | + self.state = "GETNAME" |
| 10 | + |
| 11 | + def connectionMade(self): |
| 12 | + self.sendLine("What's your name?") |
| 13 | + |
| 14 | + def connectionLost(self, reason): |
| 15 | + if self.name in self.users: |
| 16 | + del self.users[self.name] |
| 17 | + |
| 18 | + def lineReceived(self, line): |
| 19 | + if self.state == "GETNAME": |
| 20 | + self.handle_GETNAME(line) |
| 21 | + else: |
| 22 | + self.handle_CHAT(line) |
| 23 | + |
| 24 | + def handle_GETNAME(self, name): |
| 25 | + if name in self.users: |
| 26 | + self.sendLine("Name taken, please choose another.") |
| 27 | + return |
| 28 | + self.sendLine("Welcome, %s!" % (name,)) |
| 29 | + self.name = name |
| 30 | + self.users[name]= self |
| 31 | + self.state = "CHAT" |
| 32 | + |
| 33 | + def handle_CHAT(self, message): |
| 34 | + message = "<%s> %s"% (self.name, message) |
| 35 | + for name, protocol in self.users.iteritems(): |
| 36 | + if protocol != self: |
| 37 | + protocol.sendLine(message) |
| 38 | + |
| 39 | +class ChatFactory(Factory): |
| 40 | + def __init__(self): |
| 41 | + self.users = {} |
| 42 | + |
| 43 | + def buildProtocol(self, addr): |
| 44 | + return Chat(self.users) |
| 45 | + |
| 46 | +reactor.listenTCP(8123, ChatFactory()) |
| 47 | +reactor.run() |
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