def test_get_valid_methods(self):
self.assertEqual(webapp2.get_valid_methods(BrokenHandler).sort(), ["GET"].sort())
self.assertEqual(webapp2.get_valid_methods(HomeHandler).sort(), ["GET", "POST"].sort())
self.assertEqual(
webapp2.get_valid_methods(MethodsHandler).sort(),
["GET", "POST", "HEAD", "OPTIONS", "PUT", "DELETE", "TRACE"].sort(),
)
def test_get_valid_methods(self):
self.assertEqual(webapp2.get_valid_methods(BrokenHandler).sort(),
['GET'].sort())
self.assertEqual(webapp2.get_valid_methods(HomeHandler).sort(),
['GET', 'POST'].sort())
self.assertEqual(webapp2.get_valid_methods(MethodsHandler).sort(),
['GET', 'POST', 'HEAD', 'OPTIONS', 'PUT', 'DELETE', 'TRACE'].sort())
def test_extra_request_methods(self):
allowed_methods_backup = webapp2.ALLOWED_METHODS
webdav_methods = ('VERSION-CONTROL', 'UNLOCK', 'PROPFIND')
for method in webdav_methods:
# It is still not possible to use WebDav methods...
req = webapp2.Request.blank('/webdav')
req.method = method
res = req.get_response(app)
self.assertEqual(res.status, '501 Not Implemented')
# Let's extend ALLOWED_METHODS with some WebDav methods.
webapp2.ALLOWED_METHODS = tuple(webapp2.ALLOWED_METHODS) + webdav_methods
self.assertEqual(sorted(webapp2.get_valid_methods(WebDavHandler)), sorted(list(webdav_methods)))
# Now we can use WebDav methods...
for method in webdav_methods:
req = webapp2.Request.blank('/webdav')
req.method = method
res = req.get_response(app)
self.assertEqual(res.status, '200 OK')
self.assertEqual(res.body, 'Method: %s' % method)
# Restore initial values.
webapp2.ALLOWED_METHODS = allowed_methods_backup
self.assertEqual(len(webapp2.ALLOWED_METHODS), 7)
def __call__(self, _method, *args, **kwargs):
"""Dispatches the requested method.
:param _method:
The method to be dispatched: the request method in lower case
(e.g., 'get', 'post', 'head', 'put' etc).
:param args:
Positional arguments to be passed to the method, coming from the
matched :class:`Route`.
:param kwargs:
Keyword arguments to be passed to the method, coming from the
matched :class:`Route`.
:returns:
None.
"""
method = getattr(self, _method, 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_valid_methods(self))
self.abort(405, headers=[('Allow', valid)])
if not self.plugins:
# Simply execute the requested method.
return method(*args, **kwargs)
# Execute before_dispatch plugins.
for plugin in self.plugins:
hook = getattr(plugin, 'before_dispatch', None)
if hook and hook(self) is True:
break
else:
# Execute the requested method.
method(*args, **kwargs)
# Execute after_dispatch plugins.
for plugin in reversed(self.plugins):
hook = getattr(plugin, 'after_dispatch', None)
if hook and hook(self) is True:
break
