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from zope.interface import implements
from webob import Request as WebobRequest
from zope.deprecation import deprecated
from zope.interface.interface import InterfaceClass
from repoze.bfg.interfaces import IRequest
from repoze.bfg.interfaces import IGETRequest
from repoze.bfg.interfaces import IPOSTRequest
from repoze.bfg.interfaces import IPUTRequest
from repoze.bfg.interfaces import IDELETERequest
from repoze.bfg.interfaces import IHEADRequest
def request_factory(environ):
try:
method = environ['REQUEST_METHOD']
except KeyError:
method = None
if 'bfg.routes.route' in environ:
route = environ['bfg.routes.route']
request_factories = route.request_factories
else:
request_factories = DEFAULT_REQUEST_FACTORIES
try:
request_factory = request_factories[method]['factory']
except KeyError:
request_factory = request_factories[None]['factory']
return request_factory(environ)
def make_request_ascii(event):
""" An event handler that causes the request charset to be ASCII;
used as an INewRequest subscriber so code written before 0.7.0 can
continue to work without a change"""
request = event.request
request.charset = None
def named_request_factories(name=None):
# We use 'precooked' Request subclasses that correspond to HTTP
# request methods when returning a request object from
# ``request_factory`` rather than using ``alsoProvides`` to attach
# the proper interface to an unsubclassed webob.Request. This
# pattern is purely an optimization (e.g. preventing calls to
# ``alsoProvides`` means the difference between 590 r/s and 690
# r/s on a MacBook 2GHz). This method should be never imported
# directly by user code; it is *not* an API.
if name is None:
default_iface = IRequest
get_iface = IGETRequest
post_iface = IPOSTRequest
put_iface = IPUTRequest
delete_iface = IDELETERequest
head_iface = IHEADRequest
else:
IC = InterfaceClass
default_iface = IC('%s_IRequest' % name, (IRequest,))
get_iface = IC('%s_IGETRequest' % name, (default_iface, IGETRequest))
post_iface = IC('%s_IPOSTRequest' % name, (default_iface, IPOSTRequest))
put_iface = IC('%s_IPUTRequest' % name, (default_iface, IPUTRequest))
delete_iface = IC('%s_IDELETERequest' % name, (default_iface,
IDELETERequest))
head_iface = IC('%s_IHEADRequest' % name, (default_iface,
IHEADRequest,))
class Request(WebobRequest):
implements(default_iface)
charset = 'utf-8'
class GETRequest(WebobRequest):
implements(get_iface)
charset = 'utf-8'
class POSTRequest(WebobRequest):
implements(post_iface)
charset = 'utf-8'
class PUTRequest(WebobRequest):
implements(put_iface)
charset = 'utf-8'
class DELETERequest(WebobRequest):
implements(delete_iface)
charset = 'utf-8'
class HEADRequest(WebobRequest):
implements(head_iface)
charset = 'utf-8'
factories = {
IRequest:{'interface':default_iface, 'factory':Request},
IGETRequest:{'interface':get_iface, 'factory':GETRequest},
IPOSTRequest:{'interface':post_iface, 'factory':POSTRequest},
IPUTRequest:{'interface':put_iface, 'factory':PUTRequest},
IDELETERequest:{'interface':delete_iface, 'factory':DELETERequest},
IHEADRequest:{'interface':head_iface, 'factory':HEADRequest},
None:{'interface':default_iface, 'factory':Request},
'GET':{'interface':get_iface, 'factory':GETRequest},
'POST':{'interface':post_iface, 'factory':POSTRequest},
'PUT':{'interface':put_iface, 'factory':PUTRequest},
'DELETE':{'interface':delete_iface, 'factory':DELETERequest},
'HEAD':{'interface':head_iface, 'factory':HEADRequest},
}
return factories
DEFAULT_REQUEST_FACTORIES = named_request_factories()
from repoze.bfg.threadlocal import get_current_request as get_request # b/c
deprecated('get_request',
'As of repoze.bfg 1.0, any import of get_request from'
'``repoze.bfg.request`` is '
'deprecated. Use ``from repoze.bfg.threadlocal import '
'get_current_request instead.')
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