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import unittest
from unittest.mock import Mock, patch
from lti import ToolProxy
import requests
import json
from oauthlib.oauth1 import SignatureOnlyEndpoint
test_profile = {'@context': ['http://purl.imsglobal.org/ctx/lti/v2/ToolConsumerProfile'],
'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9',
'@type': 'ToolConsumerProfile',
'capability_offered': ['basic-lti-launch-request',
'User.id',
'Canvas.api.domain',
'LtiLink.custom.url',
'ToolProxyBinding.custom.url',
'ToolProxy.custom.url',
'Canvas.placements.accountNavigation',
'Canvas.placements.courseNavigation',
'Canvas.placements.assignmentSelection',
'Canvas.placements.linkSelection',
'Canvas.placements.postGrades',
'User.username',
'Person.email.primary',
'vnd.Canvas.Person.email.sis',
'Person.name.given',
'Person.name.family',
'Person.name.full',
'CourseSection.sourcedId',
'Person.sourcedId',
'Membership.role',
'ToolConsumerProfile.url',
'Security.splitSecret',
'Context.id',
'ToolConsumerInstance.guid',
'CourseSection.sourcedId',
'Membership.role',
'Person.email.primary',
'Person.name.given',
'Person.name.family',
'Person.name.full',
'Person.sourcedId',
'User.id',
'User.image',
'Message.documentTarget',
'Message.locale',
'Context.id',
'vnd.Canvas.root_account.uuid'],
'guid': '339b6700-e4cb-47c5-a54f-3ee0064921a9',
'lti_version': 'LTI-2p0',
'product_instance': {'guid': '07adb3e60637ff02d9ea11c7c74f1ca921699bd7.canvas.instructure.com',
'product_info': {'product_family': {'code': 'canvas',
'vendor': {'code': 'https://instructure.com',
'timestamp': '2008-03-27T06:00:00Z',
'vendor_name': {'default_value': 'Instructure',
'key': 'vendor.name'}}},
'product_name': {'default_value': 'Canvas '
'by '
'Instructure',
'key': 'product.name'},
'product_version': 'none'},
'service_owner': {'description': {'default_value': 'Free '
'For '
'Teachers',
'key': 'service_owner.description'},
'service_owner_name': {'default_value': 'Free '
'For '
'Teachers',
'key': 'service_owner.name'}}},
'security_profile': [{'digest_algorithm': 'HMAC-SHA1',
'security_profile_name': 'lti_oauth_hash_message_security'},
{'digest_algorithm': 'HS256',
'security_profile_name': 'oauth2_access_token_ws_security'}],
'service_offered': [{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxy.collection',
'@type': 'RestService',
'action': ['POST'],
'endpoint': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_proxy',
'format': ['application/vnd.ims.lti.v2.toolproxy+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxy.item',
'@type': 'RestService',
'action': ['GET'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_proxy/{tool_proxy_guid}',
'format': ['application/vnd.ims.lti.v2.toolproxy+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#vnd.Canvas.authorization',
'@type': 'RestService',
'action': ['POST'],
'endpoint': 'https://canvas.instructure.com/api/lti/courses/1157004/authorize',
'format': ['application/json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxySettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/tool_proxy/{tool_proxy_id}',
'format': ['application/vnd.ims.lti.v2.toolsettings+json',
'application/vnd.ims.lti.v2.toolsettings.simple+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxyBindingSettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/bindings/{binding_id}',
'format': ["application/vnd.ims.lti.v2.toolsettings+json'",
'application/vnd.ims.lti.v2.toolsettings.simple+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#LtiLinkSettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/links/{tool_proxy_id}',
'format': ['application/vnd.ims.lti.v2.toolsettings+json',
'application/vnd.ims.lti.v2.toolsettings.simple+json']}]}
test_params = {'ext_api_domain': 'canvas.instructure.com',
'ext_tool_consumer_instance_guid': '07adb3e60637ff02d9ea11c7c74f1ca921699bd7.canvas.instructure.com',
'launch_presentation_document_target': 'iframe',
'launch_presentation_return_url': 'https://canvas.instructure.com/courses/1157004/lti/registration_return',
'lti_message_type': 'ToolProxyRegistrationRequest',
'lti_version': 'LTI-2p0',
'reg_key': 'eb9031ac-2e12-422e-8238-beb9c41419b3',
'reg_password': 'f781d41d-6f9e-4b02-b11b-fe4ffa704ac1',
'tc_profile_url': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile'}
class TestToolProxy(unittest.TestCase):
def test_load_tc_profile(self):
#Mock out the call to the requests library
response = Mock()
response.text = json.dumps(test_profile)
proxy = ToolProxy(params=test_params)
with patch('lti.tool_proxy.requests.get') as mock_get:
mock_get.return_value = response
proxy.load_tc_profile()
self.assertEqual(proxy.tc_profile, test_profile)
def test_tool_consumer_profile_url(self):
proxy = ToolProxy(params=test_params)
self.assertEqual(proxy.tool_consumer_profile_url, test_params['tc_profile_url'])
def test_find_registration_url(self):
proxy = ToolProxy(params=test_params)
proxy.tc_profile = test_profile
registration_url = proxy.find_registration_url()
self.assertEqual(registration_url, 'https://canvas.instructure.com/api/lti/courses/1157004/tool_proxy')
def test_not_find_registration_url(self):
proxy = ToolProxy(params=test_params)
proxy.tc_profile = {'@context': ['http://purl.imsglobal.org/ctx/lti/v2/ToolConsumerProfile'],
'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9',
'@type': 'ToolConsumerProfile',
'capability_offered': ['basic-lti-launch-request',
'vnd.Canvas.root_account.uuid'],
'guid': '339b6700-e4cb-47c5-a54f-3ee0064921a9',
'lti_version': 'LTI-2p0',
'product_instance': {'guid': '07adb3e60637ff02d9ea11c7c74f1ca921699bd7.canvas.instructure.com',
'product_info': {'product_family': {'code': 'canvas',
'vendor': {'code': 'https://instructure.com',
'timestamp': '2008-03-27T06:00:00Z',
'vendor_name': {'default_value': 'Instructure',
'key': 'vendor.name'}}},
'product_name': {'default_value': 'Canvas '
'by '
'Instructure',
'key': 'product.name'},
'product_version': 'none'},
'service_owner': {'description': {'default_value': 'Free '
'For '
'Teachers',
'key': 'service_owner.description'},
'service_owner_name': {'default_value': 'Free '
'For '
'Teachers',
'key': 'service_owner.name'}}},
'security_profile': [{'digest_algorithm': 'HMAC-SHA1',
'security_profile_name': 'lti_oauth_hash_message_security'},
{'digest_algorithm': 'HS256',
'security_profile_name': 'oauth2_access_token_ws_security'}],
'service_offered': [{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxy.item',
'@type': 'RestService',
'action': ['GET'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_proxy/{tool_proxy_guid}',
'format': ['application/vnd.ims.lti.v2.toolproxy+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#vnd.Canvas.authorization',
'@type': 'RestService',
'action': ['POST'],
'endpoint': 'https://canvas.instructure.com/api/lti/courses/1157004/authorize',
'format': ['application/json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxySettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/tool_proxy/{tool_proxy_id}',
'format': ['application/vnd.ims.lti.v2.toolsettings+json',
'application/vnd.ims.lti.v2.toolsettings.simple+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#ToolProxyBindingSettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/bindings/{binding_id}',
'format': ["application/vnd.ims.lti.v2.toolsettings+json'",
'application/vnd.ims.lti.v2.toolsettings.simple+json']},
{'@id': 'https://canvas.instructure.com/api/lti/courses/1157004/tool_consumer_profile/339b6700-e4cb-47c5-a54f-3ee0064921a9#LtiLinkSettings',
'@type': 'RestService',
'action': ['GET', 'PUT'],
'endpoint': 'https://canvas.instructure.com/api/lti/tool_settings/links/{tool_proxy_id}',
'format': ['application/vnd.ims.lti.v2.toolsettings+json',
'application/vnd.ims.lti.v2.toolsettings.simple+json']}]}
registration_url = proxy.find_registration_url()
self.assertIsNone(registration_url)
def test_register_proxy(self):
proxy = ToolProxy(params=test_params)
proxy.tc_profile = test_profile
signed_request = proxy.register_proxy({'tool_profile': 'A Real Tool Profile Goes here'})
self.assertIsInstance(signed_request, requests.PreparedRequest)
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