100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
import xmlrpclib
|
|
import socket
|
|
|
|
import network
|
|
from MostlyReliablePipe import MostlyReliablePipe
|
|
|
|
class Stream(object):
|
|
def __init__(self, service, group):
|
|
self._service = service
|
|
self._group = group
|
|
self._owner_nick_name = self._group.get_owner().get_nick_name()
|
|
self._port = self._service.get_port()
|
|
self._address = self._service.get_address()
|
|
self._callback = None
|
|
|
|
def new_from_service(service, group):
|
|
if service.is_multicast():
|
|
return MulticastStream(service, group)
|
|
else:
|
|
return UnicastStream(service, group)
|
|
new_from_service = staticmethod(new_from_service)
|
|
|
|
def set_data_listener(self, callback):
|
|
self._callback = callback
|
|
|
|
def recv(self, nick_name, data):
|
|
if nick_name != self._owner_nick_name:
|
|
if self._callback:
|
|
self._callback(self._group.get_buddy(nick_name), data)
|
|
|
|
|
|
class UnicastStreamWriter(object):
|
|
def __init__(self, stream, service, owner_nick_name):
|
|
# set up the writer
|
|
self._service = service
|
|
self._owner_nick_name = owner_nick_name
|
|
self._address = self._service.get_address()
|
|
self._port = self._service.get_port()
|
|
self._xmlrpc_addr = "http://%s:%d" % (self._address, self._port)
|
|
self._writer = xmlrpclib.ServerProxy(self._xmlrpc_addr)
|
|
|
|
def write(self, data):
|
|
try:
|
|
self._writer.message(self._owner_nick_name, data)
|
|
return True
|
|
except (socket.error, xmlrpclib.Fault, xmlrpclib.ProtocolError):
|
|
traceback.print_exc()
|
|
return False
|
|
|
|
|
|
class UnicastStream(Stream):
|
|
def __init__(self, service, group):
|
|
Stream.__init__(self, service, group)
|
|
self._setup()
|
|
|
|
def _setup(self):
|
|
# Set up the reader
|
|
started = False
|
|
tries = 10
|
|
port = self._service.get_port()
|
|
self._reader = None
|
|
while not started and tries > 0:
|
|
try:
|
|
self._reader = network.GlibXMLRPCServer(("", port))
|
|
self._reader.register_instance(self)
|
|
started = True
|
|
except(socket.error):
|
|
port = port + 1
|
|
tries = tries - 1
|
|
self._service.set_port(port)
|
|
|
|
def message(self, nick_name, message):
|
|
"""Called by the XMLRPC server when network data arrives."""
|
|
self.recv(nick_name, message)
|
|
return True
|
|
|
|
def new_writer(self, service):
|
|
return UnicastStreamWriter(self, service, self._owner_nick_name)
|
|
|
|
|
|
class MulticastStream(Stream):
|
|
def __init__(self, service, group):
|
|
Stream.__init__(self, service, group)
|
|
self._address = self._service.get_group_address()
|
|
self._setup()
|
|
|
|
def _setup(self):
|
|
self._pipe = MostlyReliablePipe('', self._address, self._port, self._recv_data_cb)
|
|
self._pipe.start()
|
|
|
|
def write(self, data):
|
|
self._pipe.send(self._owner_nick_name + " |**| " + data)
|
|
|
|
def _recv_data_cb(self, addr, data, user_data=None):
|
|
[ nick_name, data ] = data.split(" |**| ", 2)
|
|
self.recv(nick_name, data)
|
|
|
|
def new_writer(self, service=None):
|
|
return self
|