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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
from repoze.bfg.registry import registry_manager
_marker = ()
class Router:
def __init__(self, root_policy, app_context, app_registry):
self.root_policy = root_policy
self.app_context = app_context
self.app_registry = app_registry
def __call__(self, environ, start_response):
registry_manager.set(self.app_registry)
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
request.view_name = name
app = queryMultiAdapter((context, request), IViewFactory, name=name,
default=_marker)
if app is _marker:
app = HTTPNotFound(request.url)
else:
app = getMultiAdapter((context, request, app),
IWSGIApplicationFactory)
return app(environ, start_response)
def make_app(root_policy, package=None, filename='configure.zcml'):
from repoze.bfg.registry import makeRegistry
context, registry = makeRegistry(filename, package)
return Router(root_policy, context, registry)
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