def render_POST(self, request):
mode = request.args.get('hub.mode', [None])[0]
url = request.args.get('hub.url', [None])[0]
if not mode or not url:
request.setResponseCode(http.BAD_REQUEST)
return "400 Bad request: Expected 'hub.mode' and 'hub.url'"
if mode == 'publish':
queue.put('fetch', url)
request.setResponseCode(http.NO_CONTENT)
return "204 Published"
else:
request.setResponseCode(http.BAD_REQUEST)
return "400 Bad request: Unrecognized mode"
def render_POST(self, request):
mode = request.args.get('hub.mode', [None])[0]
callback = request.args.get('hub.callback', [None])[0]
topic = request.args.get('hub.topic', [None])[0]
verify = request.args.get('hub.verify', [None])
verify_token = request.args.get('hub.verify_token', [None])[0]
if not mode or not callback or not topic or not verify:
request.setResponseCode(http.BAD_REQUEST)
return "400 Bad request: Expected 'hub.mode', 'hub.callback', 'hub.topic', and 'hub.verify'"
if not mode in ['subscribe', 'unsubscribe']:
request.setResponseCode(http.BAD_REQUEST)
return "400 Bad request: Unrecognized mode"
verify = verify[0] # For now, only using the first preference of verify mode
if not verify in ['sync', 'async']:
request.setResponseCode(http.BAD_REQUEST)
return "400 Bad request: Unsupported verification mode"
to_verify = {'mode': mode, 'callback': callback, 'topic': topic, 'verify_token': verify_token}
if verify == 'sync':
def finish_success(request):
request.setResponseCode(http.NO_CONTENT)
request.write("204 Subscription created")
request.finish()
def finish_failed(request):
request.setResponseCode(http.CONFLICT)
request.write("409 Subscription verification failed")
request.finish()
to_verify['onsuccess'] = lambda x: finish_success(request)
to_verify['onfail'] = lambda x: finish_failed(request)
queue.put('verify', to_verify)
return NOT_DONE_YET
elif verify == 'async':
queue.put('verify', to_verify)
request.setResponseCode(http.ACCEPTED)
return "202 Scheduled for verification"
def render(self, request):
path = '/'.join(request.prepath[1:])
print path
topic_param = request.args.get('_topic', [None])[0]
if topic_param:
del request.args['_topic']
data_params = urllib.urlencode(request.args, doseq=True)
queue.put('dispatch', {
'topic' : topic_param,
'data' : data_params,
'content_type' : 'application/x-www-form-urlencoded',
})
return "202 Scheduled"
url_param = request.args.get('_url', [None])[0]
if url_param:
del request.args['_url']
url = 'http://%s' % path if len(path) else url_param
if url:
params = {}
for k in request.args:
value = request.args[k]
if type(value) is list and len(value) == 1:
params[k] = value[0]
else:
params[k] = value
post_and_retry(url, params)
request.setResponseCode(http.ACCEPTED)
return "202 Scheduled"
else:
request.setResponseCode(http.BAD_REQUEST)
return "400 No destination URL"
def receivedMessage(self, url):
subscribers = len(subscriptions.get(url, []))
if subscribers:
print "Fetching %s for %s subscribers" % (url, subscribers)
client.getPage(url, headers={'X-Hub-Subscribers': subscribers}) \
.addCallbacks(lambda p: queue.put('dispatch', {'topic': url, 'data': p, 'content_type': 'application/atom+xml'}))
