def start_auth(request):
"""
Step 1 of oauth authentication: get the REQUEST_TOKEN
"""
# Redirect to KA, for auth. They will return to central, and we'll be able to continue
# using data from the session
central_callback_url = request.build_absolute_uri(reverse('update_all_central_callback'))
client = TestOAuthClient(KHAN_SERVER_URL, settings.KHAN_API_CONSUMER_KEY, settings.KHAN_API_CONSUMER_SECRET)
return HttpResponseRedirect(client.start_fetch_request_token(central_callback_url))
def get_api_resource(request, resource_url):
"""
Step 3 of the api process:
Get the data.
"""
logging.info("Getting data from khan academy (%s)." % resource_url)
client = TestOAuthClient(KHAN_SERVER_URL, settings.KHAN_API_CONSUMER_KEY, settings.KHAN_API_CONSUMER_SECRET)
start = time.time()
response = client.access_resource(resource_url, request.session["ACCESS_TOKEN"])
end = time.time()
logging.debug("API (%s) time: %s" % (resource_url, end - start))
data = json.loads(response)
logging.info("Got %d items from khan academy (%s)." % (len(data), resource_url))
return data
def finish_auth(request):
"""
Step 2 of the oauth authentication: use the REQUEST_TOKEN to get an ACCESS_TOKEN
"""
params = request.GET
try:
request.session["REQUEST_TOKEN"] = OAuthToken(params['oauth_token'], params['oauth_token_secret'])
request.session["REQUEST_TOKEN"].set_verifier(params['oauth_verifier'])
except MultiValueDictKeyError as e:
# we just want to generate a 500 anyway;
# nothing we could do here except give a slightly more meaningful error
raise e
logging.debug("Getting access token.")
client = TestOAuthClient(KHAN_SERVER_URL, settings.KHAN_API_CONSUMER_KEY, settings.KHAN_API_CONSUMER_SECRET)
request.session["ACCESS_TOKEN"] = client.fetch_access_token(request.session["REQUEST_TOKEN"])
if not request.session["ACCESS_TOKEN"]:
raise Exception("Did not get access token.")
return request.session["ACCESS_TOKEN"]
