def dispatch(self):
"""Dispatches the requested method."""
request = self.request
method_name = request.route.handler_method
if not method_name:
method_name = webapp2._normalize_handler_method(request.method)
method = getattr(self, method_name, None)
if method is None:
# 405 Method Not Allowed.
valid = ', '.join(webapp2._get_handler_methods(self))
self.abort(405, headers=[('Allow', valid)])
# The handler only receives *args if no named variables are set.
# TODO: Warum?
args, kwargs = request.route_args, request.route_kwargs
if kwargs:
args = ()
# bind session on dispatch (not in __init__)
try:
self.session = get_current_session()
except AttributeError:
# session handling not activated
self.session = {} # pylint: disable=R0204
# init messages array based on session but avoid modifying session if not needed
if self.session.get('_gaetk_messages', None):
self.session['_gaetk_messages'] = self.session.get('_gaetk_messages', [])
# Give authentication Hooks opportunity to do their thing
self.authchecker(method, *args, **kwargs)
try:
response = method(*args, **kwargs)
except Exception, e:
return self.handle_exception(e, self.app.debug)
def dispatch(self):
"""Dispatches the requested method."""
request = self.request
method_name = request.route.handler_method
if not method_name:
method_name = webapp2._normalize_handler_method(request.method)
method = getattr(self, method_name, None)
if method is None:
# 405 Method Not Allowed.
# The response MUST include an Allow header containing a
# list of valid methods for the requested resource.
# http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.6
valid = ', '.join(webapp2._get_handler_methods(self))
self.abort(405, headers=[('Allow', valid)])
# The handler only receives *args if no named variables are set.
args, kwargs = request.route_args, request.route_kwargs
if kwargs:
args = ()
# bind session on dispatch (not in __init__)
self.session = get_current_session()
# init messages array based on session but avoid modifying session if not needed
if self.session.get('_gaetk_messages', None):
self.session['_gaetk_messages'] = self.session.get('_gaetk_messages', [])
# Give authentication Hooks opportunity to do their thing
self.authchecker(method, *args, **kwargs)
# Execute the method.
reply = method(*args, **kwargs)
# find out which return convention was used - first set defaults ...
content = reply
statuscode = 200
cachingtime = self.default_cachingtime
# ... then check if we got a 2-tuple reply ...
if isinstance(reply, tuple) and len(reply) == 2:
content, statuscode = reply
# ... or a 3-tuple reply.
if isinstance(reply, tuple) and len(reply) == 3:
content, statuscode, cachingtime = reply
# Finally begin sending the response
response = self.serialize(content)
if cachingtime:
self.response.headers['Cache-Control'] = 'max-age=%d, public' % cachingtime
# If we have gotten a `callback` parameter, we expect that this is a
# [JSONP](http://en.wikipedia.org/wiki/JSONP#JSONP) cann and therefore add the padding
if self.request.get('callback', None):
response = "%s (%s)" % (self.request.get('callback', None), response)
self.response.headers['Content-Type'] = 'text/javascript'
else:
self.response.headers['Content-Type'] = 'application/json'
# Set status code and write JSON to output stream
self.response.set_status(statuscode)
self.response.out.write(response)
self.response.out.write('\n')
def __init__(self, *args, **kwargs):
"""Initialize RequestHandler"""
self.credential = None
try:
self.session = get_current_session()
except AttributeError:
# session middleware might not be enabled
self.session = {} # pylint: disable=R0204
# Careful! `webapp2.RequestHandler` does not call super()!
super(BasicHandler, self).__init__(*args, **kwargs)
self.credential = None
def get_current_user():
"""Helper function to return a valid User instance.
For users logged in via OpenID, the result is equivalent to users.get_current_user.
If the user logged in via Basic Auth, the user id is taken from the related Credential object.
"""
user = users.get_current_user()
if user is not None:
return user
else:
session = get_current_session()
if session and 'uid' in session:
return users.User(_user_id=session['uid'], email=session.get('email', ''), _strict_mode=False)
