def check_permission(self, permission_name):
if permission_name is None:
return True
if permission_name not in self.permission_cache:
permission = queryUtility(IPermission, name=permission_name)
if permission is None:
self.permission_cache[permission_name] = True
else:
security = IInteraction(self.request)
self.permission_cache[permission_name] = bool(
security.checkPermission(permission.title, self.context))
return self.permission_cache[permission_name]
def __call__(self):
result = super(SerializeFolderToJson, self).__call__()
security = IInteraction(self.request)
length = len(self.context)
if length > MAX_ALLOWED:
result['items'] = []
else:
result['items'] = [
getMultiAdapter((member, self.request),
ISerializeToJsonSummary)()
for ident, member in self.context.items()
if not ident.startswith('_') and bool(
security.checkPermission('plone.AccessContent',
self.context))
]
result['length'] = length
return result