import asyncio
import ssl


if False:  # madis
    HOST = 'madis-data.ncep.noaa.gov'
    PORT = 443
    PATH = '/madisPublic1/data/archive/2001/07/01/LDAD/mesonet/netCDF/20010701_0800.gz'
else:  # localhost
    HOST = 'localhost'
    PORT = 443
    PATH = '/20010701_0800.gz'


MSG = 'GET {path} HTTP/1.1\r\nIf-Modified-Since: Tue, 31 Jan 2017 05:45:10 GMT\r\nAccept-Encoding: gzip, deflate\r\nAccept: */*\r\nHost: madis-data.ncep.noaa.gov\r\nUser-Agent: Python/3.5 aiohttp/1.3.0a0\r\nContent-Length: 0\r\n\r\n'.format(path=PATH)


class HttpClient(asyncio.Protocol):
    def connection_made(self, transport):
        self.transport = transport
        self.transport.write(MSG.encode('ascii'))
        print('data sent:', MSG)

    def data_received(self, data):
        print('data received:', data)

        asyncio.get_event_loop().call_later(1.0, self.transport.close)

    def eof_received(self):
        pass

    def connection_lost(self, exc):
        print('connection lost:', exc)
        asyncio.get_event_loop().stop()


async def main():
    loop = asyncio.get_event_loop()


    ssl_context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
    ssl_context.set_default_verify_paths()
    ssl_context.load_cert_chain('/tmp/cert', '/tmp/key')

    return await loop.create_connection(HttpClient, HOST, PORT, ssl=ssl_context)


if __name__ == '__main__':
    _loop = asyncio.get_event_loop()
    _loop.run_until_complete(main())
    _loop.run_forever()