def dispatch(self, request, *args, **kwargs):
lti = LTI(self.request_type, self.role_type)
# validate the user via oauth
user = authenticate(request=request, lti=lti)
if user is None:
lti.clear_session(request)
return render_to_response(
'lti_auth/fail_auth.html', {},
context_instance=RequestContext(request))
# check if course is configured
try:
ctx = lti.custom_course_context()
except (KeyError, ValueError, LTICourseContext.DoesNotExist):
lti.clear_session(request)
return render_to_response(
'lti_auth/fail_course_configuration.html', {},
context_instance=RequestContext(request))
# add user to the course
self.join_groups(lti, ctx, user)
# login
login(request, user)
return super(LTIAuthMixin, self).dispatch(request, *args, **kwargs)
def test_custom_course_context(self):
lti = LTI('initial', 'any')
with self.assertRaises(KeyError):
lti.custom_course_context()
lti.lti_params = BASE_LTI_PARAMS
lti.lti_params['custom_course_context'] = 434
with self.assertRaises(LTICourseContext.DoesNotExist):
lti.custom_course_context()
ctx = LTICourseContextFactory()
lti.lti_params['custom_course_context'] = 'abc'
with self.assertRaises(ValueError):
lti.custom_course_context()
lti.lti_params['custom_course_context'] = ctx.uuid
with self.assertRaises(LTICourseContext.DoesNotExist):
lti.custom_course_context()
ctx.enable = True
ctx.save()
self.assertEquals(lti.custom_course_context(), ctx)
