Factor out a very simple p2p messaging system from chat
Marco Pesenti Gritti
18 years ago
parent
14d572e72a
commit
91670df8b2
@ -0,0 +1,158 @@
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import os
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import pwd
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import presence
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import BuddyList
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import network
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class GroupRequestHandler(object):
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def __init__(self, group):
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self._group = group
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def message(self, message):
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address = network.get_authinfo()
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self._group.recv(address, message)
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class Owner:
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instance = None
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def __init__(self):
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ent = pwd.getpwuid(os.getuid())
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self._nick = ent[0]
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if not self._nick or not len(self._nick):
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self._nick = "n00b"
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self._realname = ent[4]
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if not self._realname or not len(self._realname):
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self._realname = "Some Clueless User"
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def get_realname(self):
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return self._realname
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def get_nick(self):
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return self._nick
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def get_instance():
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if not Owner.instance:
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Owner.instance = Owner()
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return Owner.instance
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get_instance = staticmethod(get_instance)
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class Group:
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instance = None
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_SERVER_PORT = 6666
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def __init__(self):
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self._pipes = {}
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def get_instance():
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if not Group.instance:
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Group.instance = Group()
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Group.instance.join()
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return Group.instance
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get_instance = staticmethod(get_instance)
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def join(self):
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self._pannounce = presence.PresenceAnnounce()
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realname = Owner.get_instance().get_realname()
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nick = Owner.get_instance().get_nick()
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self._buddy_list = BuddyList.BuddyList(realname)
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self._buddy_list.start()
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self._pannounce.register_service(realname, self._SERVER_PORT, presence.OLPC_CHAT_SERVICE,
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name = nick, realname = realname)
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self._p2p_req_handler = GroupRequestHandler(self)
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self._p2p_server = network.GlibXMLRPCServer(("", self._SERVER_PORT))
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self._p2p_server.register_instance(self._p2p_req_handler)
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self._gc_controller = network.GroupChatController('224.0.0.221', 6666, self._recv_group_message)
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self._gc_controller.start()
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def get_buddy_list(self):
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return self._buddy_list
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def _serialize_msg(self, pipe_id, msg):
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return pipe_id + "|" + msg
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def _deserialize_msg(self, msg):
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sep_index = msg.find("|")
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pipe_id = msg[0 : sep_index]
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message = msg[sep_index + 1 :]
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return [pipe_id, message]
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def send(self, buddy, pipe_id, msg):
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addr = "http://%s:%d" % (buddy.address(), buddy.port())
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peer = xmlrpclib.ServerProxy(addr)
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msg = text
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success = True
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try:
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peer.message(self._serialize_msg(pipe_id, msg))
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except (socket.error, xmlrpclib.Fault), e:
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msg = str(e)
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success = False
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return success
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def broadcast(self, pipe_id, msg):
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self._gc_controller.send_msg(self._serialize_msg(pipe_id, msg))
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def register_pipe(self, input_pipe):
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self._pipes[input_pipe.get_id()] = input_pipe
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def _recv_group_message(self, msg):
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self.recv(msg['addr'], msg['data'])
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def recv(self, address, message):
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sender = self._buddy_list.find_buddy_by_address(address)
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[pipe_id, msg] = self._deserialize_msg(message)
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pipe = self._pipes[pipe_id]
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if pipe:
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pipe.recv(sender, msg)
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class AbstractPipe:
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def __init__(self, group, pipe_id=None):
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self._group = group
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self._pipe_id = pipe_id
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def get_id(self):
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return self._pipe_id
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def send(self, msg):
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pass
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class AbstractOutputPipe(AbstractPipe):
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def __init__(self, group, pipe_id=None):
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AbstractPipe.__init__(self, group, pipe_id)
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def send(self, msg):
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pass
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class OutputPipe(AbstractOutputPipe):
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def __init__(self, group, buddy, pipe_id=None):
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AbstractOutputPipe.__init__(self, group, pipe_id)
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self._buddy = buddy
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def send(self, msg):
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self._group.send(self._buddy, self._pipe_id, msg)
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class BroadcastOutputPipe(AbstractOutputPipe):
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def __init__(self, group, pipe_id=None):
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AbstractOutputPipe.__init__(self, group, pipe_id)
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def send(self, msg):
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self._group.broadcast(self._pipe_id, msg)
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class InputPipe(AbstractPipe):
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def __init__(self, group, pipe_id=None):
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AbstractPipe.__init__(self, group, pipe_id)
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group.register_pipe(self)
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def listen(self, callback):
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self.__callback = callback
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def recv(self, sender, msg):
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self.__callback(sender, msg)
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