def get_case_info(env, app, gate_source=None):
"""
Get the info structure for an case, based on env and app.
This is useful to middlewares.
Note: This call bypasses auth. Success does not imply that the
request has authorization to the account_info.
"""
cache = cache_from_env(env)
if not cache:
return None
(version, case, evidence, _) = \
split_path(env['PATH_INFO'], 2, 4, True)
cache_key = get_case_memcache_key(case)
# Use a unique environment cache key per case. If you copy this env
# to make a new request, it won't accidentally reuse the old account info
env_key = 'gate.%s' % cache_key
if env_key not in env:
case_info = cache.get(cache_key)
if not case_info:
resp = make_pre_authed_request(
env, 'HEAD', '/%s/%s' % (version, case),
gate_source=gate_source,
).get_response(app)
case_info = headers_to_case_info(
resp.headers, resp.status_int)
env[env_key] = case_info
return env[env_key]
def get_controller(self, path):
"""
Get the controller to handle a request.
:param path: path from request
:returns: tuple of (controller class, path dictionary)
:raises: ValueError (thrown by split_path) if given invalid path
"""
version, case, evidence, obj = split_path(path, 1, 4, True)
d = dict(version=version,
case_name=case,
evidence_name=evidence,
obj_name=obj)
if obj and evidence and case:
return ObjectController, d
elif evidence and case:
return ContainerController, d
elif case and not container and not obj:
return CaseController, d
def get_controller(self, path):
"""
Get the controller to handle a request.
:param path: path from request
:returns: tuple of (controller class, path dictionary)
:raises: ValueError (thrown by split_path) if given invalid path
"""
version, case, evidence, obj = split_path(path, 1, 4, True)
d = dict(version=version,
case_name=case,
evidence_name=evidence,
obj_name=obj)
if obj and evidence and case:
return ObjectController, d
elif evidence and case:
return ContainerController, d
elif case and not container and not obj:
return CaseController, d
return None, d
def split_path(self, minsegs=1, maxsegs=None, rest_with_last=False):
"""
Validate and split the Request's path.
**Examples**::
['a'] = split_path('/a')
['a', None] = split_path('/a', 1, 2)
['a', 'c'] = split_path('/a/c', 1, 2)
['a', 'c', 'o/r'] = split_path('/a/c/o/r', 1, 3, True)
:param path: HTTP Request path to be split
:param minsegs: Minimum number of segments to be extracted
:param maxsegs: Maximum number of segments to be extracted
:param rest_with_last: If True, trailing data will be returned as part
of last segment. If False, and there is
trailing data, raises ValueError.
:returns: list of segments with a length of maxsegs (non-existant
segments will return as None)
:raises: ValueError if given an invalid path
"""
return split_path(
self.environ.get('SCRIPT_NAME', '') + self.environ['PATH_INFO'],
minsegs, maxsegs, rest_with_last)
