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Fix lis_outcome_service_url sending.

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This commit is contained in:
Oleg Marshev
2013-12-05 18:11:32 +02:00
committed by Alexander Kryklia
parent f6867da502
commit cc2e4bfeae
8 changed files with 107 additions and 84 deletions
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112
lms/djangoapps/courseware/mock_lti_server/mock_lti_server.py
View File

@@ -33,7 +33,6 @@ class MockLTIRequestHandler(BaseHTTPRequestHandler):
protocol = "HTTP/1.0"
callback_url = None
def log_message(self, format, *args):
"""Log an arbitrary message."""
# Code copied from BaseHTTPServer.py. Changed to write to sys.stdout
@@ -49,18 +48,13 @@ class MockLTIRequestHandler(BaseHTTPRequestHandler):
Used for checking LTI Provider started correctly.
'''
self.send_response(200, 'OK')
self.send_header('Content-type', 'html')
self.end_headers()
response_str = """<html><head><title>TEST TITLE</title></head>
<body>This is LTI Provider.</body></html>"""
self.wfile.write(response_str)
def do_POST(self):
'''
Handle a POST request from the client and sends response back.
@@ -72,38 +66,17 @@ class MockLTIRequestHandler(BaseHTTPRequestHandler):
# Respond to request with correct lti endpoint:
elif self._is_correct_lti_request():
self.post_dict = self._post_dict()
correct_keys = [
'user_id',
'role',
'oauth_nonce',
'oauth_timestamp',
'oauth_consumer_key',
'lti_version',
'oauth_signature_method',
'oauth_version',
'oauth_signature',
'lti_message_type',
'oauth_callback',
'lis_outcome_service_url',
'lis_result_sourcedid',
'launch_presentation_return_url',
# 'lis_person_sourcedid', optional, not used now.
'resource_link_id',
]
if sorted(correct_keys) != sorted(self.post_dict.keys()):
status_message = "Incorrect LTI header"
params = {k: v for k, v in self.post_dict.items() if k != 'oauth_signature'}
if self.server.check_oauth_signature(params, self.post_dict.get('oauth_signature', "")):
status_message = "This is LTI tool. Success."
# set data for grades what need to be stored as server data
if 'lis_outcome_service_url' in self.post_dict:
self.server.grade_data = {
'callback_url': self.post_dict.get('lis_outcome_service_url'),
'sourcedId': self.post_dict.get('lis_result_sourcedid')
}
else:
params = {k: v for k, v in self.post_dict.items() if k != 'oauth_signature'}
if self.server.check_oauth_signature(params, self.post_dict['oauth_signature']):
status_message = "This is LTI tool. Success."
else:
status_message = "Wrong LTI signature"
# set data for grades
# what need to be stored as server data
self.server.grade_data = {
'callback_url': self.post_dict.get('lis_outcome_service_url'),
'sourcedId': self.post_dict.get('lis_result_sourcedid')
}
status_message = "Wrong LTI signature"
self._send_response(status_message, 200)
else:
status_message = "Invalid request URL"
@@ -141,17 +114,17 @@ class MockLTIRequestHandler(BaseHTTPRequestHandler):
self.server.cookie = {}
referer = urlparse.urlparse(self.headers.getheader('referer'))
self.server.referer_host = "{}://{}".format(referer.scheme, referer.netloc)
self.server.referer_netloc = referer.netloc
return post_dict
def _send_graded_result(self):
"""
Send grade request.
"""
values = {
'textString': 0.5,
'sourcedId': self.server.grade_data['sourcedId'],
'imsx_messageIdentifier': uuid4().hex,
}
payload = textwrap.dedent("""
<?xml version = "1.0" encoding = "UTF-8"?>
<imsx_POXEnvelopeRequest xmlns="http://www.imsglobal.org/services/ltiv1p1/xsd/imsoms_v1p0">
@@ -208,40 +181,53 @@ class MockLTIRequestHandler(BaseHTTPRequestHandler):
Send message back to the client
'''
self._send_head(status_code)
if self.server.grade_data['callback_url']:
response_str = """<html><head><title>TEST TITLE</title></head>
<body>
<div><h2>Graded IFrame loaded</h2> \
<h3>Server response is:</h3>\
<h3 class="result">{}</h3></div>
<form action="{url}/grade" method="post">
<input type="submit" name="submit-button" value="Submit">
</form>
if getattr(self.server, 'grade_data', False): # lti can be graded
response_str = textwrap.dedent("""
<html>
<head>
<title>TEST TITLE</title>
</head>
<body>
<div>
<h2>Graded IFrame loaded</h2>
<h3>Server response is:</h3>
<h3 class="result">{}</h3>
</div>
<form action="{url}/grade" method="post">
<input type="submit" name="submit-button" value="Submit">
</form>
</body>
</html>
""").format(message, url="http://%s:%s" % self.server.server_address)
else: # lti can't be graded
response_str = textwrap.dedent("""
<html>
<head>
<title>TEST TITLE</title>
</head>
<body>
<div>
<h2>IFrame loaded</h2>
<h3>Server response is:</h3>
<h3 class="result">{}</h3>
</div>
</body>
</html>
""").format(message)
</body></html>""".format(message, url="http://%s:%s" % self.server.server_address)
else:
response_str = """<html><head><title>TEST TITLE</title></head>
<body>
<div><h2>IFrame loaded</h2> \
<h3>Server response is:</h3>\
<h3 class="result">{}</h3></div>
</body></html>""".format(message)
# Log the response
logger.debug("LTI: sent response {}".format(response_str))
self.wfile.write(response_str)
def _is_correct_lti_request(self):
'''If url to LTI tool is correct.'''
'''
If url to LTI tool is correct.
'''
return self.server.oauth_settings['lti_endpoint'] in self.path
def oauth_sign(self, url, body):
"""
Signs request and returns signed body and headers.
"""
client = oauthlib.oauth1.Client(
client_key=unicode(self.server.oauth_settings['client_key']),
client_secret=unicode(self.server.oauth_settings['client_secret'])

17
lms/djangoapps/courseware/mock_lti_server/test_mock_lti_server.py
View File

@@ -49,10 +49,9 @@ class MockLTIServerTest(unittest.TestCase):
def test_wrong_header(self):
"""
Tests that LTI server processes request with right program
path and responses with wrong header.
Tests that LTI server processes request with right program path but with wrong header.
"""
#wrong number of params
#wrong number of params and no signature
payload = {
'user_id': 'default_user_id',
'role': 'student',
@@ -62,7 +61,7 @@ class MockLTIServerTest(unittest.TestCase):
uri = self.server.oauth_settings['lti_base'] + self.server.oauth_settings['lti_endpoint']
headers = {'referer': 'http://localhost:8000/'}
response = requests.post(uri, data=payload, headers=headers)
self.assertIn('Incorrect LTI header', response.content)
self.assertIn('Wrong LTI signature', response.content)
def test_wrong_signature(self):
"""
@@ -74,7 +73,7 @@ class MockLTIServerTest(unittest.TestCase):
'role': 'student',
'oauth_nonce': '',
'oauth_timestamp': '',
'oauth_consumer_key': 'client_key',
'oauth_consumer_key': 'test_client_key',
'lti_version': 'LTI-1p0',
'oauth_signature_method': 'HMAC-SHA1',
'oauth_version': '1.0',
@@ -101,7 +100,7 @@ class MockLTIServerTest(unittest.TestCase):
'role': 'student',
'oauth_nonce': '',
'oauth_timestamp': '',
'oauth_consumer_key': 'client_key',
'oauth_consumer_key': 'test_client_key',
'lti_version': 'LTI-1p0',
'oauth_signature_method': 'HMAC-SHA1',
'oauth_version': '1.0',
@@ -112,7 +111,6 @@ class MockLTIServerTest(unittest.TestCase):
'lis_outcome_service_url': '',
'lis_result_sourcedid': '',
'resource_link_id':'',
"lis_outcome_service_url": '',
}
self.server.check_oauth_signature = Mock(return_value=True)
@@ -128,7 +126,7 @@ class MockLTIServerTest(unittest.TestCase):
'role': 'student',
'oauth_nonce': '',
'oauth_timestamp': '',
'oauth_consumer_key': 'client_key',
'oauth_consumer_key': 'test_client_key',
'lti_version': 'LTI-1p0',
'oauth_signature_method': 'HMAC-SHA1',
'oauth_version': '1.0',
@@ -139,7 +137,6 @@ class MockLTIServerTest(unittest.TestCase):
'lis_outcome_service_url': '',
'lis_result_sourcedid': '',
'resource_link_id':'',
"lis_outcome_service_url": '',
}
self.server.check_oauth_signature = Mock(return_value=True)
@@ -147,8 +144,8 @@ class MockLTIServerTest(unittest.TestCase):
#this is the uri for sending grade from lti
headers = {'referer': 'http://localhost:8000/'}
response = requests.post(uri, data=payload, headers=headers)
self.assertIn('This is LTI tool. Success.', response.content)
self.assertTrue('This is LTI tool. Success.' in response.content)
self.server.grade_data['TC answer'] = "Test response"
graded_response = requests.post('http://127.0.0.1:8034/grade')
self.assertIn('Test response', graded_response.content)

1
lms/djangoapps/courseware/tests/test_lti_integration.py
View File

@@ -46,7 +46,6 @@ class TestLTI(BaseTestXmodule):
u'role': u'student',
u'resource_link_id': module_id,
u'lis_outcome_service_url': lis_outcome_service_url,
u'lis_result_sourcedid': sourcedId,
u'oauth_nonce': mocked_nonce,