def __init__(cls, name, bases, dict_):
cls._pecan = dict(
secured=Protected,
check_permissions=cls.check_permissions,
unlocked=[]
)
for name, value in getmembers(cls):
if ismethod(value):
if iscontroller(value) and value._pecan.get(
'secured'
) is None:
value._pecan['secured'] = Protected
value._pecan['check_permissions'] = \
cls.check_permissions
elif hasattr(value, '__class__'):
if name.startswith('__') and name.endswith('__'):
continue
if isinstance(value, _UnlockedAttribute):
# mark it as unlocked and remove wrapper
cls._pecan['unlocked'].append(value.obj)
setattr(cls, name, value.obj)
elif isinstance(value, _SecuredAttribute):
# The user has specified a different check_permissions
# than the class level version. As far as the class
# is concerned, this method is unlocked because
# it is using a check_permissions function embedded in
# the _SecuredAttribute wrapper
cls._pecan['unlocked'].append(value)
def __init__(cls, name, bases, dict_):
cls._pecan = dict(
secured=Protected,
check_permissions=cls.check_permissions,
unlocked=[]
)
for name, value in getmembers(cls)[:]:
if ismethod(value):
if iscontroller(value) and value._pecan.get(
'secured'
) is None:
# Wrap the function so that the security context is
# local to this class definition. This works around
# the fact that unbound method attributes are shared
# across classes with the same bases.
wrapped = _make_wrapper(value)
wrapped._pecan['secured'] = Protected
wrapped._pecan['check_permissions'] = \
cls.check_permissions
setattr(cls, name, wrapped)
elif hasattr(value, '__class__'):
if name.startswith('__') and name.endswith('__'):
continue
if isinstance(value, _UnlockedAttribute):
# mark it as unlocked and remove wrapper
cls._pecan['unlocked'].append(value.obj)
setattr(cls, name, value.obj)
elif isinstance(value, _SecuredAttribute):
# The user has specified a different check_permissions
# than the class level version. As far as the class
# is concerned, this method is unlocked because
# it is using a check_permissions function embedded in
# the _SecuredAttribute wrapper
cls._pecan['unlocked'].append(value)
def _find_controller(self, *args):
'''
Returns the appropriate controller for routing a custom action.
'''
for name in args:
obj = getattr(self, name, None)
if obj and iscontroller(obj):
return obj
return None
def walk_controller(root_class, controller, hooks):
if not isinstance(controller, (int, dict)):
for name, value in getmembers(controller):
if name == 'controller': continue
if name.startswith('__') and name.endswith('__'): continue
if iscontroller(value):
for hook in hooks:
value._pecan.setdefault('hooks', []).append(hook)
elif hasattr(value, '__class__'):
if name.startswith('__') and name.endswith('__'): continue
walk_controller(root_class, value, hooks)
def find_object(obj, remainder, notfound_handlers):
prev_obj = None
while True:
if obj is None: raise exc.HTTPNotFound
if iscontroller(obj): return obj, remainder
# are we traversing to another controller
cross_boundary(prev_obj, obj)
if remainder and remainder[0] == '':
index = getattr(obj, 'index', None)
if iscontroller(index): return index, remainder[1:]
elif not remainder:
# the URL has hit an index method without a trailing slash
index = getattr(obj, 'index', None)
if iscontroller(index):
raise NonCanonicalPath(index, remainder[1:])
default = getattr(obj, '_default', None)
if iscontroller(default):
notfound_handlers.append(('_default', default, remainder))
lookup = getattr(obj, '_lookup', None)
if iscontroller(lookup):
notfound_handlers.append(('_lookup', lookup, remainder))
route = getattr(obj, '_route', None)
if iscontroller(route):
next, next_remainder = route(remainder)
cross_boundary(route, next)
return next, next_remainder
if not remainder: raise exc.HTTPNotFound
next, remainder = remainder[0], remainder[1:]
prev_obj = obj
obj = getattr(obj, next, None)
def find_object(obj, remainder, notfound_handlers):
'''
'Walks' the url path in search of an action for which a controller is
implemented and returns that controller object along with what's left
of the remainder.
'''
prev_obj = None
while True:
if obj is None:
raise exc.HTTPNotFound
if iscontroller(obj):
return obj, remainder
# are we traversing to another controller
cross_boundary(prev_obj, obj)
if remainder and remainder[0] == '':
index = getattr(obj, 'index', None)
if iscontroller(index):
return index, remainder[1:]
elif not remainder:
# the URL has hit an index method without a trailing slash
index = getattr(obj, 'index', None)
if iscontroller(index):
raise NonCanonicalPath(index, remainder[1:])
default = getattr(obj, '_default', None)
if iscontroller(default):
notfound_handlers.append(('_default', default, remainder))
lookup = getattr(obj, '_lookup', None)
if iscontroller(lookup):
notfound_handlers.append(('_lookup', lookup, remainder))
route = getattr(obj, '_route', None)
if iscontroller(route):
next, next_remainder = route(remainder)
cross_boundary(route, next)
return next, next_remainder
if not remainder:
raise exc.HTTPNotFound
next, remainder = remainder[0], remainder[1:]
prev_obj = obj
obj = getattr(obj, next, None)
def _find_controller(self, *args):
for name in args:
obj = getattr(self, name, None)
if obj and iscontroller(obj):
return obj
return None
