def test_setdefault(self):
config = Config()
self.assertRaises(KeyError, config.get_config, 'foo')
config.setdefault('foo', {
'bar': 'baz',
'doo': 'ding',
})
self.assertEqual(config.get_config('foo', 'bar'), 'baz')
self.assertEqual(config.get_config('foo', 'doo'), 'ding')
def test_setdefault(self):
config = Config()
self.assertRaises(KeyError, config.get_config, 'foo')
config.setdefault('foo', {
'bar': 'baz',
'doo': 'ding',
})
self.assertEqual(config.get_config('foo', 'bar'), 'baz')
self.assertEqual(config.get_config('foo', 'doo'), 'ding')
def test_setdefault2(self):
config = Config({'foo': {
'bar': 'baz',
}})
self.assertEqual(config.get_config('foo'), {
'bar': 'baz',
})
config.setdefault('foo', {
'bar': 'wooo',
'doo': 'ding',
})
self.assertEqual(config.get_config('foo', 'bar'), 'baz')
self.assertEqual(config.get_config('foo', 'doo'), 'ding')
def test_setdefault2(self):
config = Config({'foo': {
'bar': 'baz',
}})
self.assertEqual(config.get_config('foo'), {
'bar': 'baz',
})
config.setdefault('foo', {
'bar': 'wooo',
'doo': 'ding',
})
self.assertEqual(config.get_config('foo', 'bar'), 'baz')
self.assertEqual(config.get_config('foo', 'doo'), 'ding')
class WSGIApplication(object):
"""The WSGI application which centralizes URL dispatching, configuration
and hooks for an App Rngine app.
"""
#: Default class for requests.
request_class = Request
#: Default class for responses.
response_class = Response
def __init__(self, config=None):
"""Initializes the application.
:param config:
Dictionary with configuration for the application modules.
"""
# Set an accessor to this instance.
local.app = self
# Load default config and update with values for this instance.
self.config = Config(config)
self.config.setdefault('tipfy', default_config)
# Set the url rules.
self.url_map = self.config.get('tipfy', 'url_map')
if not self.url_map:
self.url_map = self.get_url_map()
# Cache for loaded handler classes.
self.handlers = {}
extensions = self.config.get('tipfy', 'extensions')
middleware = self.config.get('tipfy', 'middleware')
if extensions:
# For backwards compatibility only.
set_extensions_compatibility(extensions, middleware)
# Middleware factory and registry.
self.middleware_factory = factory = MiddlewareFactory()
# Store the app middleware dict.
self.middleware = factory.get_middleware(self, middleware)
def __call__(self, environ, start_response):
"""Called by WSGI when a request comes in."""
try:
# Set local variables for a single request.
local.app = self
local.request = request = self.request_class(environ)
# Kept here for backwards compatibility. Soon to be removed.
local.response = self.response_class()
self.url_adapter = self.rule = self.rule_args = None
# Check requested method.
method = request.method.lower()
if method not in ALLOWED_METHODS:
raise MethodNotAllowed()
# Bind url map to the current request location.
self.url_adapter = self.url_map.bind_to_environ(environ,
server_name=self.config.get('tipfy', 'server_name', None),
subdomain=self.config.get('tipfy', 'subdomain', None))
# Match the path against registered rules.
self.rule, self.rule_args = self.url_adapter.match(request.path,
return_rule=True)
# Import handler set in matched rule.
name = self.rule.handler
if name not in self.handlers:
self.handlers[name] = import_string(name)
# Execute pre_dispatch_handler middleware.
for hook in self.middleware.get('pre_dispatch_handler', []):
response = hook()
if response:
break
else:
# Instantiate handler and dispatch request method.
handler = self.handlers[name]()
response = handler.dispatch(method, **self.rule_args)
# Execute post_dispatch_handler middleware.
for hook in self.middleware.get('post_dispatch_handler', []):
response = hook(response)
except RequestRedirect, e:
# Execute redirects raised by the routing system or the application.
response = e
except Exception, e:
# Handle http and uncaught exceptions.
response = self.handle_exception(e)
