def init_webapp(self):
# load the hub-related settings into the tornado settings dict
self.init_hub_auth()
s = self.tornado_settings
s['log_function'] = log_request
s['user'] = self.user
s['group'] = self.group
s['hub_prefix'] = self.hub_prefix
s['hub_host'] = self.hub_host
s['hub_auth'] = self.hub_auth
csp_report_uri = s['csp_report_uri'] = self.hub_host + url_path_join(
self.hub_prefix, 'security/csp-report')
headers = s.setdefault('headers', {})
headers['X-JupyterHub-Version'] = __version__
# set CSP header directly to workaround bugs in jupyter/notebook 5.0
headers.setdefault(
'Content-Security-Policy',
';'.join(
["frame-ancestors 'self'", "report-uri " + csp_report_uri]),
)
super(SingleUserNotebookApp, self).init_webapp()
# add OAuth callback
self.web_app.add_handlers(
r".*$",
[(urlparse(
self.hub_auth.oauth_redirect_uri).path, OAuthCallbackHandler)],
)
# apply X-JupyterHub-Version to *all* request handlers (even redirects)
self.patch_default_headers()
self.patch_templates()
def patch_templates(self):
"""Patch page templates to add Hub-related buttons"""
self.jinja_template_vars['logo_url'] = self.hub_host + url_path_join(
self.hub_prefix, 'logo')
self.jinja_template_vars['hub_host'] = self.hub_host
self.jinja_template_vars['hub_prefix'] = self.hub_prefix
env = self.web_app.settings['jinja2_env']
env.globals['hub_control_panel_url'] = self.hub_host + url_path_join(
self.hub_prefix, 'home')
# patch jinja env loading to modify page template
def get_page(name):
if name == 'page.html':
return page_template
orig_loader = env.loader
env.loader = ChoiceLoader([FunctionLoader(get_page), orig_loader])