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import tornado.httpclient
try:
from hashlib import sha256
digestmod = sha256
except ImportError:
import Crypto.Hash.SHA256 as digestmod
sha256 = digestmod.new
import hmac
import tornado.ioloop
from tornado.stack_context import ExceptionStackContext
ioloop = tornado.ioloop.IOLoop.instance()
class Pubnub(PubnubCoreAsync):
def stop(self): ioloop.stop()
def start(self): ioloop.start()
def timeout( self, delay, callback):
ioloop.add_timeout( time.time()+float(delay), callback )
def __init__(
self,
publish_key,
subscribe_key,
secret_key = False,
cipher_key = False,
ssl_on = False,
origin = 'pubsub.pubnub.com'
) :
super(Pubnub, self).__init__(
publish_key=publish_key,
subscribe_key=subscribe_key,
secret_key=secret_key,
cipher_key=cipher_key,
ssl_on=ssl_on,
origin=origin,
)
self.headers = {}
self.headers['User-Agent'] = 'Python-Tornado'
self.headers['Accept-Encoding'] = self.accept_encoding
self.headers['V'] = self.version
self.http = tornado.httpclient.AsyncHTTPClient(max_clients=1000)
self.id = None
self._channel_list_lock = None
def _request( self, request, callback, single=False ) :
url = self.getUrl(request)
request = tornado.httpclient.HTTPRequest( url, 'GET', self.headers, connect_timeout=10, request_timeout=310 )
if single is True:
id = time.time()
self.id = id
def responseCallback(response):
if single is True:
if not id == self.id:
return None
body = response._get_body()
if body is None:
return
def handle_exc(*args):
return True
if response.error is not None:
with ExceptionStackContext(handle_exc):
response.rethrow()
elif callback:
callback(eval(response._get_body()))
self.http.fetch(
request=request,
callback=responseCallback
)
def abort():
pass
return abort
|