56 lines
2.2 KiB
Python
56 lines
2.2 KiB
Python
"""STIX 2.0 Bundle Representation."""
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from collections import OrderedDict
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from ..properties import (
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IDProperty, ListProperty, STIXObjectProperty, StringProperty, TypeProperty,
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)
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from .base import _STIXBase20
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class Bundle(_STIXBase20):
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"""For more detailed information on this object's properties, see
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`the STIX 2.0 specification <http://docs.oasis-open.org/cti/stix/v2.0/cs01/part1-stix-core/stix-v2.0-cs01-part1-stix-core.html#_Toc496709293>`__.
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"""
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_type = 'bundle'
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_properties = OrderedDict([
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('type', TypeProperty(_type)),
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('id', IDProperty(_type, spec_version='2.0')),
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# Not technically correct: STIX 2.0 spec doesn't say spec_version must
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# have this value, but it's all we support for now.
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('spec_version', StringProperty(fixed='2.0')),
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('objects', ListProperty(STIXObjectProperty(spec_version="2.0"))),
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])
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def __init__(self, *args, **kwargs):
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# Add any positional arguments to the 'objects' kwarg.
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if args:
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if isinstance(args[0], list):
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kwargs['objects'] = args[0] + list(args[1:]) + kwargs.get('objects', [])
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else:
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kwargs['objects'] = list(args) + kwargs.get('objects', [])
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self._allow_custom = kwargs.get('allow_custom', False)
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self._properties['objects'].contained.allow_custom = kwargs.get('allow_custom', False)
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super(Bundle, self).__init__(**kwargs)
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def get_obj(self, obj_uuid):
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if "objects" in self._inner:
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found_objs = [elem for elem in self.objects if elem['id'] == obj_uuid]
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if found_objs == []:
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raise KeyError("'%s' does not match the id property of any of the bundle's objects" % obj_uuid)
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return found_objs
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else:
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raise KeyError("There are no objects in this empty bundle")
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def __getitem__(self, key):
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try:
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return super(Bundle, self).__getitem__(key)
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except KeyError:
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try:
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return self.get_obj(key)
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except KeyError:
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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)
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