cti-python-stix2/stix2/v21/bundle.py

54 lines
1.9 KiB
Python

"""STIX 2.1 Bundle Representation."""
from collections import OrderedDict
from ..base import _STIXBase
from ..properties import (
IDProperty, ListProperty, STIXObjectProperty, TypeProperty,
)
class Bundle(_STIXBase):
# TODO: Add link
"""For more detailed information on this object's properties, see
`the STIX 2.1 specification <link here>`__.
"""
_type = 'bundle'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('objects', ListProperty(STIXObjectProperty(spec_version='2.1'))),
])
def __init__(self, *args, **kwargs):
# Add any positional arguments to the 'objects' kwarg.
if args:
if isinstance(args[0], list):
kwargs['objects'] = args[0] + list(args[1:]) + kwargs.get('objects', [])
else:
kwargs['objects'] = list(args) + kwargs.get('objects', [])
self.__allow_custom = kwargs.get('allow_custom', False)
self._properties['objects'].contained.allow_custom = kwargs.get('allow_custom', False)
super(Bundle, self).__init__(**kwargs)
def get_obj(self, obj_uuid):
if "objects" in self._inner:
found_objs = [elem for elem in self.objects if elem['id'] == obj_uuid]
if found_objs == []:
raise KeyError("'%s' does not match the id property of any of the bundle's objects" % obj_uuid)
return found_objs
else:
raise KeyError("There are no objects in this empty bundle")
def __getitem__(self, key):
try:
return super(Bundle, self).__getitem__(key)
except KeyError:
try:
return self.get_obj(key)
except KeyError:
raise KeyError("'%s' is neither a property on the bundle nor does it match the id property of any of the bundle's objects" % key)