def generate_launch_data(self):
# Validate params
if not self.has_required_params():
raise InvalidLTIConfigError('ToolConsumer does not have all required attributes: consumer_key = %s, consumer_secret = %s, resource_link_id = %s, launch_url = %s' %(self.consumer_key, self.consumer_secret, self.resource_link_id, self.launch_url))
params = self.to_params()
if params.get('lit_version', None) is not None:
params['lti_version'] = 'LTI-1.0'
if params.get('lti_message_type', None) is not None:
params['lti_message_type'] = 'basic-lti-launch-request'
# Get new OAuth consumer
consumer = oauth2.Consumer(key = self.consumer_key,\
secret = self.consumer_secret)
params.update({
'oauth_nonce': str(generate_identifier()),
'oauth_timestamp': str(int(time.time())),
'oauth_scheme': 'body',
'oauth_consumer_key': consumer.key
})
# russomi: Removing since it is causing duplicate id values
# to be passed and fails to match the moodle signature...
# uri = urlparse.urlparse(self.launch_url)
# if uri.query != '':
# for param in uri.query.split('&'):
# key, val = param.split('=')
# if params.get(key) == None:
# params[key] = str(val)
request = oauth2.Request(method = 'POST',
url = self.launch_url,
parameters = params)
signature_method = oauth2.SignatureMethod_HMAC_SHA1()
request.sign_request(signature_method, consumer, None)
# Request was made by an HTML form in the user's browser.
# Return the dict of post parameters ready for embedding
# in an html view.
return_params = {}
for key in request:
if request[key] == None:
return_params[key] = None
elif isinstance(request[key], list):
return_params[key] = request.get_parameter(key)
else:
return_params[key] = unquote(request.get_parameter(key))
return return_params
def generate_launch_data(self):
# Validate params
if not self.has_required_params():
raise InvalidLTIConfigError(
'ToolConsumer does not have all required attributes: consumer_key = %s, consumer_secret = %s, resource_link_id = %s, launch_url = %s'
% (self.consumer_key, self.consumer_secret,
self.resource_link_id, self.launch_url))
params = self.to_params()
if not params.get('lit_version', None):
params['lti_version'] = 'LTI-1.0'
params['lti_message_type'] = 'basic-lti-launch-request'
# Get new OAuth consumer
consumer = oauth2.Consumer(key = self.consumer_key,\
secret = self.consumer_secret)
params.update({
'oauth_nonce': str(generate_identifier()),
'oauth_timestamp': str(int(time.time())),
'oauth_scheme': 'body',
'oauth_consumer_key': consumer.key
})
uri = urlparse.urlparse(self.launch_url)
if uri.query != '':
for param in uri.query.split('&'):
key, val = param.split('=')
if params.get(key) == None:
params[key] = str(val)
request = oauth2.Request(method='POST',
url=self.launch_url,
parameters=params)
signature_method = oauth2.SignatureMethod_HMAC_SHA1()
request.sign_request(signature_method, consumer, None)
# Request was made by an HTML form in the user's browser.
# Return the dict of post parameters ready for embedding
# in an html view.
return_params = {}
for key in request:
if request[key] == None:
return_params[key] = None
elif isinstance(request[key], list):
return_params[key] = request.get_parameter(key)
else:
return_params[key] = unquote(request.get_parameter(key))
return return_params
def _params_update(self):
return {
'oauth_nonce': str(generate_identifier()),
'oauth_timestamp': str(int(time.time())),
'oauth_scheme': 'body'
}
def _params_update(self):
return {
'oauth_nonce': str(generate_identifier()),
'oauth_timestamp': str(int(time.time())),
'oauth_scheme': 'body'
}
