def test_nonces(self):
with self.silo['Consumers'].open() as collection:
consumer = lti.ToolConsumer.new_from_values(
collection.new_entity(), self.cipher, 'default', key="12345",
secret=ul("secret"))
collection.insert_entity(consumer.entity)
provider = lti.ToolProvider(
self.container['Consumers'], self.container['Nonces'],
self.cipher)
consumer = provider.lookup_consumer('12345')
self.assertTrue(provider.validate_timestamp_and_nonce(
consumer.key, 0, '9e4a4b085c8c46d6aae6b5d9c8a15418', None))
# the same nonce should now evaluate to True
self.assertFalse(provider.validate_timestamp_and_nonce(
consumer.key, 0, '9e4a4b085c8c46d6aae6b5d9c8a15418', None))
# but a different one is False
self.assertTrue(provider.validate_timestamp_and_nonce(
consumer.key, 0, '8f274dca508711c2e70a67ab68fcc1f2', None))
# now at 89:59 we are still not allowed to reuse the nonce
self.mock_time.tick(89*60+59.0)
self.assertFalse(provider.validate_timestamp_and_nonce(
consumer.key, 0, '9e4a4b085c8c46d6aae6b5d9c8a15418', None))
# but if we tick over 90 mins we're good to go again
self.mock_time.tick(1.001)
self.assertTrue(provider.validate_timestamp_and_nonce(
consumer.key, 0, '9e4a4b085c8c46d6aae6b5d9c8a15418', None))
def test_launch(self):
command = "POST"
url = "http://www.example.com/launch"
headers = {'Content-Type': 'application/x-www-form-urlencoded'}
query_string = "context_id=456434513&context_label=SI182&"\
"context_title=Design%20of%20Personal%20Environments&"\
"launch_presentation_css_url=http%3A%2F%2Fwww.imsglobal.org%2F"\
"developers%2FLTI%2Ftest%2Fv1p1%2Flms.css&"\
"launch_presentation_document_target=frame&"\
"launch_presentation_locale=en-US&"\
"launch_presentation_return_url=http%3A%2F%2Fwww.imsglobal.org%2F"\
"developers%2FLTI%2Ftest%2Fv1p1%2Flms_return.php&"\
"lis_outcome_service_url=http%3A%2F%2Fwww.imsglobal.org%2F"\
"developers%2FLTI%2Ftest%2Fv1p1%2Fcommon%2F"\
"tool_consumer_outcome.php%3Fb64%3DMTIzNDU6OjpzZWNyZXQ%3D&"\
"lis_person_contact_email_primary=user%40school.edu&"\
"lis_person_name_family=Public&"\
"lis_person_name_full=Jane%20Q.%20Public&"\
"lis_person_name_given=Given&"\
"lis_person_sourcedid=school.edu%3Auser&"\
"lis_result_sourcedid=feb-123-456-2929%3A%3A28883&"\
"lti_message_type=basic-lti-launch-request&"\
"lti_version=LTI-1p0&"\
"oauth_callback=about%3Ablank&oauth_consumer_key=12345&"\
"oauth_nonce=45f32b44e314244a222d0e070fa55384&"\
"oauth_signature=SKhxr%2Bx4p9jVO6sFxKdpA5neDtg%3D&"\
"oauth_signature_method=HMAC-SHA1&"\
"oauth_timestamp=1420370306&"\
"oauth_version=1.0&"\
"resource_link_description=A%20weekly%20blog.&"\
"resource_link_id=120988f929-274612&"\
"resource_link_title=Weekly%20Blog&"\
"roles=Instructor&"\
"tool_consumer_info_product_family_code=ims&"\
"tool_consumer_info_version=1.1&"\
"tool_consumer_instance_description="\
"University%20of%20School%20%28LMSng%29&"\
"tool_consumer_instance_guid=lmsng.school.edu&"\
"user_id=292832126"
with self.silo['Consumers'].open() as collection:
consumer = lti.ToolConsumer.new_from_values(
collection.new_entity(), self.cipher, 'default', key="12345",
secret=ul("secret"))
collection.insert_entity(consumer.entity)
provider = lti.ToolProvider(
self.container['Consumers'], self.container['Nonces'],
self.cipher)
consumer, parameters = provider.launch(
command, url, headers, query_string)
self.assertTrue(consumer.key == '12345')
self.assertTrue('user_id' in parameters)
self.assertTrue(parameters['user_id'] == '292832126')
# we should have an exception if we change the parameters!
try:
consumer, parameters = provider.launch(
"POST", url, headers, query_string + "%custom_value=X")
self.fail("LTI launch with bad signature")
except lti.LTIAuthenticationError:
pass
def test_constructor(self):
provider = lti.ToolProvider(
self.container['Consumers'], self.container['Nonces'],
self.cipher)
# by default, there are no consumers
try:
provider.lookup_consumer('12345')
self.fail("No consumers")
except KeyError:
pass
with self.silo['Consumers'].open() as collection:
consumer = lti.ToolConsumer.new_from_values(
collection.new_entity(), self.cipher, 'default', key="12345",
secret=ul("secret"))
collection.insert_entity(consumer.entity)
try:
consumer = provider.lookup_consumer('12345')
self.assertTrue(consumer.key == '12345')
self.assertTrue(consumer.secret == 'secret')
except KeyError:
self.fail("Failed to find consumer")
