37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
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import logging
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import random
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from sugar.chat.GroupChat import GroupChat
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from sugar.presence.Service import Service
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import sugar.env
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class MeshChat(GroupChat):
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SERVICE_TYPE = "_olpc_mesh_chat._udp"
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SERVICE_PORT = 6301
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def __init__(self):
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GroupChat.__init__(self)
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self._pservice.connect('service-appeared', self._service_appeared_cb)
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self._pservice.track_service_type(MeshChat.SERVICE_TYPE)
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self._publish()
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service = self._pservice.get_service(MeshChat.SERVICE_TYPE)
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if service is not None:
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self._service_appeared_cb(self._pservice, None, service)
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def _service_appeared_cb(self, pservice, buddy, service):
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if self._group_stream == None:
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if service.get_type() == MeshChat.SERVICE_TYPE:
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logging.debug('Mesh chat service appeared, setup the stream.')
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self._setup_stream(service)
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def _publish(self):
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# Use random currently unassigned multicast address
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address = "232.%d.%d.%d" % (random.randint(0, 254), random.randint(1, 254),
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random.randint(1, 254))
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service = Service(sugar.env.get_nick_name(), MeshChat.SERVICE_TYPE,
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'local', address, MeshChat.SERVICE_PORT)
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self._pservice.register_service(service)
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