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from zope.component import getMultiAdapter
from zope.component import queryMultiAdapter
from zope.interface import directlyProvides
from webob import Request
from webob.exc import HTTPNotFound
from repoze.bfg.interfaces import IPublishTraverserFactory
from repoze.bfg.interfaces import IViewFactory
from repoze.bfg.interfaces import IWSGIApplicationFactory
from repoze.bfg.interfaces import IRequest
_marker = ()
class Router:
def __init__(self, root_policy):
self.root_policy = root_policy
def __call__(self, environ, start_response):
request = Request(environ)
directlyProvides(request, IRequest)
root = self.root_policy(environ)
path = environ.get('PATH_INFO', '/')
traverser = getMultiAdapter((root, request), IPublishTraverserFactory)
context, name, subpath = traverser(path)
request.subpath = subpath
app = queryMultiAdapter((context, request), IViewFactory, name=name,
default=_marker)
if app is _marker:
app = HTTPNotFound(request.url)
else:
app = getMultiAdapter((app, request), IWSGIApplicationFactory)
return app(environ, start_response)
def make_app(root_policy,
default_publish_traverser_factory=None,
default_wsgi_application_factory=None
):
if default_publish_traverser_factory is None:
from repoze.bfg.traversal import NaivePublishTraverser
default_publish_traverser_factory = NaivePublishTraverser
if default_wsgi_application_factory is None:
from repoze.bfg.wsgiadapter import NaiveWSGIViewAdapter
default_wsgi_application_factory = NaiveWSGIViewAdapter
from zope.component import getGlobalSiteManager
gsm = getGlobalSiteManager()
gsm.registerAdapter(default_publish_traverser_factory, (None, None),
IPublishTraverserFactory)
gsm.registerAdapter(default_wsgi_application_factory, (None, None),
IWSGIApplicationFactory)
return Router(root_policy)
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