def lti_tool(request):
key = request.POST['oauth_consumer_key']
if key:
secret = oauth_creds[key]
if secret:
tp = DjangoToolProvider(key, secret, request.POST)
else:
tp = DjangoToolProvider(None, None, request.POST)
tp.lti_msg = "Your consumer didn't used a recognized key"
tp.lti_errorlog = "You did it wrong!"
error_temp = get_template("error.html")
context_data = Context({'message': 'Consumer key not recognized',
'params': request.POST})
error_html = error_temp.render(context_data)
return HttpResponse(error_html)
else:
key_error_temp = get_template("error.html")
key_error_html = key_error_temp.render(Context({'message': 'Consumer key not recognized'}))
return HttpResponse(key_error_html)
if not tp.is_valid_request(request):
sigerror_temp = get_template("error.html")
context_data = Context({'message': 'The OAuth signature is invalid',
'params': request.POST})
sigerror_html = sigerror_temp.render(context_data)
return HttpResponse(sigerror_html)
request.session['launch_params'] = tp.to_params()
userid = request.POST['user_id']
temp = get_template('assessment.html')
html = temp.render(Context({'userid': userid}))
return HttpResponse(html)
def ltilaunch(request):
consumer_key = request.POST.get('oauth_consumer_key')
if consumer_key:
consumer = LTIConsumer.objects.get(consumer_key=consumer_key)
else:
return HttpResponse('oauth_consumer_key must be supplied', status=403)
tool_provider = DjangoToolProvider(consumer_key, consumer.secret, request.POST)
if not tool_provider.is_launch_request():
return HttpResponse('Not a launch request', status=403)
lti_params = tool_provider.to_params()
# Set the session stuff in here.
request.session['user_id'] = lti_params['user_id']
course_id = str(lti_params['context_id'])
request.session['course_id'] = course_id
request.session['course_title'] = lti_params['context_title']
return_url = lti_params.get('launch_presentation_return_url')
# This is FutureLearn specific
if return_url and 'www.futurelearn.com' in return_url:
parts = urlparse(lti_params['launch_presentation_return_url']).path.split('/')
if len(parts) >= 4:
chosen_topic = parts[2]
request.session['chosen_topic'] = 'Ebola' if 'sandpit' in course_id else chosen_topic
request.session['course_run'] = int(parts[3])
else:
# Test data.
request.session['chosen_topic'] = 'dyslexia'
request.session['course_run'] = 1
_log_launch(lti_params['user_id'],lti_params['context_id'], lti_params.get('launch_presentation_return_url'))
return results(request)
def _get_lti_parameters_from_request(cls, request):
provider = DjangoToolProvider(settings.LTI_CLIENT_KEY,
settings.LTI_CLIENT_SECRET, request.POST)
provider.valid_request(request)
return provider.to_params()
def _get_lti_parameters_from_request(cls, request):
provider = DjangoToolProvider(settings.LTI_CLIENT_KEY, settings.LTI_CLIENT_SECRET, request.POST)
provider.valid_request(request)
return provider.to_params()
