def init_handlers(self, settings):
"""Load the (URL pattern, handler) tuples for each component."""
# Order matters. The first handler to match the URL will handle the request.
handlers = []
handlers.extend(load_handlers('tree.handlers'))
handlers.extend([(r"/login", settings['login_handler_class'])])
handlers.extend([(r"/logout", settings['logout_handler_class'])])
handlers.extend(load_handlers('files.handlers'))
handlers.extend(load_handlers('notebook.handlers'))
handlers.extend(load_handlers('nbconvert.handlers'))
handlers.extend(load_handlers('kernelspecs.handlers'))
handlers.extend(load_handlers('edit.handlers'))
handlers.extend(load_handlers('services.api.handlers'))
handlers.extend(load_handlers('services.config.handlers'))
handlers.extend(load_handlers('services.kernels.handlers'))
handlers.extend(load_handlers('services.contents.handlers'))
handlers.extend(load_handlers('services.sessions.handlers'))
handlers.extend(load_handlers('services.nbconvert.handlers'))
handlers.extend(load_handlers('services.kernelspecs.handlers'))
handlers.extend(load_handlers('services.security.handlers'))
handlers.extend(load_handlers('lab.handlers'))
# BEGIN HARDCODED WIDGETS HACK
# TODO: Remove on notebook 5.0
widgets = None
try:
import widgetsnbextension
except:
try:
import ipywidgets as widgets
handlers.append(
(r"/nbextensions/widgets/(.*)", FileFindHandler, {
'path': widgets.find_static_assets(),
'no_cache_paths': ['/'], # don't cache anything in nbextensions
}),
)
except:
app_log.warning('Widgets are unavailable. Please install widgetsnbextension or ipywidgets 4.0')
# END HARDCODED WIDGETS HACK
handlers.append(
(r"/nbextensions/(.*)", FileFindHandler, {
'path': settings['nbextensions_path'],
'no_cache_paths': ['/'], # don't cache anything in nbextensions
}),
)
handlers.append(
(r"/custom/(.*)", FileFindHandler, {
'path': settings['static_custom_path'],
'no_cache_paths': ['/'], # don't cache anything in custom
})
)
# register base handlers last
handlers.extend(load_handlers('base.handlers'))
# set the URL that will be redirected from `/`
handlers.append(
(r'/?', web.RedirectHandler, {
'url' : settings['default_url'],
'permanent': False, # want 302, not 301
})
)
# prepend base_url onto the patterns that we match
new_handlers = []
for handler in handlers:
pattern = url_path_join(settings['base_url'], handler[0])
new_handler = tuple([pattern] + list(handler[1:]))
new_handlers.append(new_handler)
# add 404 on the end, which will catch everything that falls through
new_handlers.append((r'(.*)', Template404))
return new_handlers
def init_handlers(self, settings):
"""Load the (URL pattern, handler) tuples for each component."""
# Order matters. The first handler to match the URL will handle the request.
handlers = []
handlers.append((r"/deprecatedwidgets/(.*)", DeprecationHandler))
handlers.extend(load_handlers("tree.handlers"))
handlers.extend([(r"/login", settings["login_handler_class"])])
handlers.extend([(r"/logout", settings["logout_handler_class"])])
handlers.extend(load_handlers("files.handlers"))
handlers.extend(load_handlers("notebook.handlers"))
handlers.extend(load_handlers("nbconvert.handlers"))
handlers.extend(load_handlers("kernelspecs.handlers"))
handlers.extend(load_handlers("edit.handlers"))
handlers.extend(load_handlers("services.api.handlers"))
handlers.extend(load_handlers("services.config.handlers"))
handlers.extend(load_handlers("services.kernels.handlers"))
handlers.extend(load_handlers("services.contents.handlers"))
handlers.extend(load_handlers("services.sessions.handlers"))
handlers.extend(load_handlers("services.nbconvert.handlers"))
handlers.extend(load_handlers("services.kernelspecs.handlers"))
handlers.extend(load_handlers("services.security.handlers"))
# BEGIN HARDCODED WIDGETS HACK
try:
import ipywidgets
handlers.append(
(
r"/nbextensions/widgets/(.*)",
FileFindHandler,
{
"path": ipywidgets.find_static_assets(),
"no_cache_paths": ["/"], # don't cache anything in nbextensions
},
)
)
except:
app_log.warn("ipywidgets package not installed. Widgets are unavailable.")
# END HARDCODED WIDGETS HACK
handlers.append(
(
r"/nbextensions/(.*)",
FileFindHandler,
{
"path": settings["nbextensions_path"],
"no_cache_paths": ["/"], # don't cache anything in nbextensions
},
)
)
handlers.append(
(
r"/custom/(.*)",
FileFindHandler,
{"path": settings["static_custom_path"], "no_cache_paths": ["/"]}, # don't cache anything in custom
)
)
# register base handlers last
handlers.extend(load_handlers("base.handlers"))
# set the URL that will be redirected from `/`
handlers.append(
(r"/?", web.RedirectHandler, {"url": settings["default_url"], "permanent": False}) # want 302, not 301
)
# prepend base_url onto the patterns that we match
new_handlers = []
for handler in handlers:
pattern = url_path_join(settings["base_url"], handler[0])
new_handler = tuple([pattern] + list(handler[1:]))
new_handlers.append(new_handler)
# add 404 on the end, which will catch everything that falls through
new_handlers.append((r"(.*)", Template404))
return new_handlers
