50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
"""ZAP Authenticator integrated with the asyncio IO loop.
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.. versionadded:: 15.2
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"""
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# Copyright (C) PyZMQ Developers
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# Distributed under the terms of the Modified BSD License.
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import asyncio
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import zmq
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from zmq.asyncio import Poller
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from ..base import Authenticator
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class AsyncioAuthenticator(Authenticator):
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"""ZAP authentication for use in the asyncio IO loop"""
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def __init__(self, context=None, loop=None):
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super().__init__(context)
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self.loop = loop or asyncio.get_event_loop()
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self.__poller = None
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self.__task = None
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@asyncio.coroutine
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def __handle_zap(self):
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while True:
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events = yield from self.__poller.poll()
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if self.zap_socket in dict(events):
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msg = yield from self.zap_socket.recv_multipart()
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self.handle_zap_message(msg)
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def start(self):
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"""Start ZAP authentication"""
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super().start()
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self.__poller = Poller()
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self.__poller.register(self.zap_socket, zmq.POLLIN)
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self.__task = asyncio.ensure_future(self.__handle_zap())
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def stop(self):
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"""Stop ZAP authentication"""
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if self.__task:
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self.__task.cancel()
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if self.__poller:
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self.__poller.unregister(self.zap_socket)
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self.__poller = None
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super().stop()
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__all__ = ['AsyncioAuthenticator']
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