class Command(BaseCommand):
help = """Insert LTI tools into Canvas.
see: https://canvas.instructure.com/doc/api/external_tools.html#method.external_tools.show
for an example of what the JSON config should look like, which can be one or an array of
app configs.
"""
def handle(self, *args, **options):
self.external_tools = ExternalTools()
self.tool_set = {}
if len(args) != 1 or not os.access(args[0], os.R_OK):
print >> self.stderr, "ERROR: invalid json config"
return
try:
with open(args[0], 'r') as jsonfile:
lticonf = json.loads(jsonfile.read())
if isinstance(lticonf, list):
for conf in lticonf:
self.load_lti(conf)
else:
self.load_lti(lticonf)
except Exception as err:
print >> self.stderr, 'ERROR: %s' % err
def load_lti(self, conf):
try:
canvas_account = conf.get('account_canvas_id')
if not canvas_account:
sis_id = conf.get('account_sis_id')
if sis_id:
canvas_account = self.external_tools.sis_account_id(sis_id)
if canvas_account:
if canvas_account not in self.tool_set:
self.tool_set[canvas_account] = self.external_tools.get_external_tools_in_account(canvas_account)
for tool in self.tool_set[canvas_account]:
if (tool.get('url') == conf.get('url')
and tool.get('consumer_key') == conf.get('consumer_key')):
print >> self.stderr, '"%s" already installed in %s' % (conf.get('name'), canvas_account)
return
tool = self.external_tools.add_external_tool_to_account(canvas_account, **conf)
print 'Installed \"%s\" (%s) in %s' % (conf.get('name'), tool.get('id'), canvas_account)
except DataFailureException as err:
raise
