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from twisted.web.client import getPage
from twisted.internet import reactor
from twisted.internet.defer import Deferred
from twisted.internet.protocol import Protocol
from twisted.web.client import Agent, ContentDecoderAgent
from twisted.web.client import RedirectAgent, GzipDecoder
from twisted.web.client import HTTPConnectionPool
from twisted.web.http_headers import Headers
from twisted.internet.ssl import ClientContextFactory
from twisted.internet.task import LoopingCall
import twisted
from hashlib import sha256
import time
import json
import traceback
from twisted.python.compat import (
_PY3, unicode, intToBytes, networkString, nativeString)
pnconn_pool = HTTPConnectionPool(reactor, persistent=True)
pnconn_pool.maxPersistentPerHost = 100000
pnconn_pool.cachedConnectionTimeout = 310
pnconn_pool.retryAutomatically = True
class Pubnub(PubnubCoreAsync):
def start(self):
reactor.run()
def stop(self):
reactor.stop()
def timeout(self, delay, callback):
reactor.callLater(delay, callback)
def __init__(
self,
publish_key,
subscribe_key,
secret_key=False,
cipher_key=False,
auth_key=None,
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,
auth_key=auth_key,
ssl_on=ssl_on,
origin=origin,
)
self.headers = {}
self.headers['User-Agent'] = ['Python-Twisted']
#self.headers['Accept-Encoding'] = [self.accept_encoding]
self.headers['V'] = [self.version]
def _request(self, request, callback=None, error=None, single=False):
global pnconn_pool
def _invoke(func, data):
if func is not None:
func(data)
## Build URL
url = self.getUrl(request)
agent = ContentDecoderAgent(RedirectAgent(Agent(
reactor,
contextFactory=WebClientContextFactory(),
pool=self.ssl and None or pnconn_pool
)), [('gzip', GzipDecoder)])
try:
request = agent.request(
'GET', url, Headers(self.headers), None)
except TypeError as te:
request = agent.request(
'GET', url.encode(), Headers(self.headers), None)
if single is True:
id = time.time()
self.id = id
def received(response):
if not isinstance(response, twisted.web._newclient.Response):
_invoke(error, {"message": "Not Found"})
return
finished = Deferred()
if response.code in [401, 403]:
response.deliverBody(PubNubPamResponse(finished))
else:
response.deliverBody(PubNubResponse(finished))
return finished
def complete(data):
if single is True:
if id != self.id:
return None
try:
data = json.loads(data)
except ValueError as e:
try:
data = json.loads(data.decode("utf-8"))
except ValueError as e:
_invoke(error, {'error': 'json decode error'})
if 'error' in data and 'status' in data and 'status' != 200:
_invoke(error, data)
else:
_invoke(callback, data)
def abort():
pass
request.addCallback(received)
request.addCallback(complete)
return abort
class WebClientContextFactory(ClientContextFactory):
def getContext(self, hostname, port):
return ClientContextFactory.getContext(self)
class PubNubPamResponse(Protocol):
def __init__(self, finished):
self.finished = finished
def dataReceived(self, bytes):
self.finished.callback(bytes)
class PubNubResponse(Protocol):
def __init__(self, finished):
self.finished = finished
def dataReceived(self, bytes):
self.finished.callback(bytes)
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