def locate_resource(self, request):
"""
Locate the resource at the path in request URL by traversing the
resource hierarchy.
"""
# Calculate the path segments relative to the application,
# special-casing requests for the the root segment (because we already
# have a reference to the root resource).
try:
segments = url.split_path(request.environ['PATH_INFO'])
except UnicodeDecodeError:
return http.bad_request()
if segments == ['']:
segments = []
# Recurse into the resource hierarchy until we run out of segments or
# find a Response.
resource = self.root
while segments and not isinstance(resource, http.Response):
resource_child = getattr(resource, 'resource_child', None)
# No resource_child method? 404.
if resource_child is None:
raise http.NotFoundError()
result = resource_child(request, segments)
# No result returned? 404.
if result is None:
raise http.NotFoundError()
# Either a (resource, remaining segments) tuple or an object to
# forward the lookup to is acceptable.
if isinstance(result, tuple):
resource, segments = result
else:
resource = result
return resource
def test_split_path(self):
self.assertEquals(url.split_path(''), [])
self.assertEquals(url.split_path('/'), [''])
self.assertEquals(url.split_path('//'), ['', ''])
self.assertEquals(url.split_path('/foo'), ['foo'])
self.assertEquals(url.split_path('/foo/bar'), ['foo', 'bar'])
self.assertEquals(url.split_path('/%2F'), ['/'])
self.assertEquals(url.split_path('/%C2%A3'), [POUND])
def test_split_path(self):
self.assertEquals(url.split_path(''), [])
self.assertEquals(url.split_path('/'), [''])
self.assertEquals(url.split_path('//'), ['', ''])
self.assertEquals(url.split_path('/foo'), ['foo'])
self.assertEquals(url.split_path('/foo/bar'), ['foo', 'bar'])
self.assertEquals(url.split_path('/%2F'), ['/'])
self.assertEquals(url.split_path('/%C2%A3'), [POUND])
def test_split_path(self):
self.assertEquals(url.split_path(""), [])
self.assertEquals(url.split_path("/"), [""])
self.assertEquals(url.split_path("//"), ["", ""])
self.assertEquals(url.split_path("/foo"), ["foo"])
self.assertEquals(url.split_path("/foo/bar"), ["foo", "bar"])
self.assertEquals(url.split_path("/%2F"), ["/"])
self.assertEquals(url.split_path("/%C2%A3"), [POUND])
