def grade_passback(grade, user, quiz):
'''
Return grade / outcome data back to the LMS via LTI Outcome Service protocol
To get grade passback url, either provide:
request (used to get LTI params)
or
user/quiz combo (used to retrieve LTI params stored in db)
'''
lti_parameters = LtiParameters.objects.get(user=user, quiz=quiz)
# send the outcome data
outcome = OutcomeRequest(
{
# required for outcome reporting
'lis_outcome_service_url':lti_parameters.lis_outcome_service_url,
'lis_result_sourcedid':lti_parameters.lis_result_sourcedid,
'consumer_key': lti_parameters.oauth_consumer_key,
'consumer_secret': settings.LTI_OAUTH_CREDENTIALS[lti_parameters.oauth_consumer_key],
'message_identifier': 'myMessage'
}
)
outcome_response = outcome.post_replace_result(grade)
# error logging
print 'GRADE PASSBACK TRIGGERED: user={}, quiz={}, grade={}'.format(user.pk, quiz.pk, grade)
print outcome_response
# TODO error detection on bad passback
return outcome_response
def grade_passback(grade, user, quiz):
'''
Return grade / outcome data back to the LMS via LTI Outcome Service protocol
To get grade passback url, either provide:
request (used to get LTI params)
or
user/quiz combo (used to retrieve LTI params stored in db)
'''
lti_parameters = LtiParameters.objects.get(user=user, quiz=quiz)
# send the outcome data
outcome = OutcomeRequest({
# required for outcome reporting
'lis_outcome_service_url':
lti_parameters.lis_outcome_service_url,
'lis_result_sourcedid':
lti_parameters.lis_result_sourcedid,
'consumer_key':
lti_parameters.oauth_consumer_key,
'consumer_secret':
settings.LTI_OAUTH_CREDENTIALS[lti_parameters.oauth_consumer_key],
'message_identifier':
'myMessage'
})
outcome_response = outcome.post_replace_result(grade)
# error logging
print 'GRADE PASSBACK TRIGGERED: user={}, quiz={}, grade={}'.format(
user.pk, quiz.pk, grade)
print outcome_response
# TODO error detection on bad passback
return outcome_response
def test_parse_delete_result_xml(self):
'''
Should parse deleteRequest XML.
'''
request = OutcomeRequest()
request.process_xml(DELETE_RESULT_XML)
self.assertEqual(request.operation, 'deleteResult')
self.assertEqual(request.lis_result_sourcedid, '261-154-728-17-784')
self.assertEqual(request.message_identifier, '123456789')
self.assertEqual(request.score, None)
def test_has_required_attributes(self):
request = OutcomeRequest()
self.assertFalse(request.has_required_attributes())
request.consumer_key = 'foo'
request.consumer_secret = 'bar'
self.assertFalse(request.has_required_attributes())
request.lis_outcome_service_url = 'http://example.edu/'
request.lis_result_sourcedid = 1
request.operation = 'baz'
self.assertTrue(request.has_required_attributes())
def test_parse_delete_result_xml(self):
'''
Should parse deleteRequest XML.
'''
request = OutcomeRequest()
request.process_xml(DELETE_RESULT_XML)
self.assertEqual(request.operation, 'deleteResult')
self.assertEqual(request.lis_result_sourcedid, '261-154-728-17-784')
self.assertEqual(request.message_identifier, '123456789')
self.assertEqual(request.score, None)
def test_has_required_attributes(self):
request = OutcomeRequest()
self.assertFalse(request.has_required_attributes())
request.consumer_key = 'foo'
request.consumer_secret = 'bar'
self.assertFalse(request.has_required_attributes())
request.lis_outcome_service_url = 'http://example.edu/'
request.lis_result_sourcedid = 1
request.operation = 'baz'
self.assertTrue(request.has_required_attributes())
def test_post_outcome_request(self):
request = OutcomeRequest()
self.assertRaises(InvalidLTIConfigError, request.post_outcome_request)
request.consumer_key = 'consumer'
request.consumer_secret = 'secret'
request.lis_outcome_service_url = 'http://example.edu/'
request.lis_result_sourcedid = 'foo'
request.operation = REPLACE_REQUEST
with HTTMock(response_content):
resp = request.post_outcome_request(nonce='my_nonce',
timestamp='1234567890')
self.assertIsInstance(resp, OutcomeResponse)
request = resp.post_response.request
self.assertTrue('authorization' in request.headers)
auth_header = unquote(request.headers['authorization'])
correct = ('OAuth '
'oauth_nonce="my_nonce", oauth_timestamp="1234567890", '
'oauth_version="1.0", oauth_signature_method="HMAC-SHA1", '
'oauth_consumer_key="consumer", '
'oauth_body_hash="glWvnsZZ8lMif1ATz8Tx64CTTaY=", '
'oauth_signature="XR6A1CmUauXZdJZXa1pJpTQi6OQ="')
self.assertEqual(auth_header, correct)
def test_post_outcome_request(self):
request = OutcomeRequest()
self.assertRaises(InvalidLTIConfigError, request.post_outcome_request)
request.consumer_key = 'consumer'
request.consumer_secret = 'secret'
request.lis_outcome_service_url = 'http://example.edu/'
request.lis_result_sourcedid = 'foo'
request.operation = REPLACE_REQUEST
with HTTMock(response_content):
resp = request.post_outcome_request(
nonce='my_nonce',
timestamp='1234567890'
)
self.assertIsInstance(resp, OutcomeResponse)
request = resp.post_response.request
self.assertTrue('authorization' in request.headers)
auth_header = unquote(request.headers['authorization'])
correct = ('OAuth '
'oauth_nonce="my_nonce", oauth_timestamp="1234567890", '
'oauth_version="1.0", oauth_signature_method="HMAC-SHA1", '
'oauth_consumer_key="consumer", '
'oauth_signature="rbvjzAHwXPs/e41Runtu6w9Gv+w="')
self.assertEqual(auth_header, correct)
