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