54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
"""Base classes for STIX 2.1 type definitions."""
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from ..base import (
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_DomainObject, _Extension, _Observable, _RelationshipObject, _STIXBase,
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)
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class _STIXBase21(_STIXBase):
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def __init__(self, **kwargs):
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if 'extensions' in self._properties:
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self._properties['extensions'].allow_custom = kwargs.get('allow_custom', False)
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super(_STIXBase21, self).__init__(**kwargs)
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class _Observable(_Observable, _STIXBase21):
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def __init__(self, **kwargs):
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super(_Observable, self).__init__(**kwargs)
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if 'id' not in kwargs:
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# Specific to 2.1+ observables: generate a deterministic ID
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id_ = self._generate_id()
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# Spec says fall back to UUIDv4 if no contributing properties were
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# given. That's what already happened (the following is actually
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# overwriting the default uuidv4), so nothing to do here.
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if id_ is not None:
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# Can't assign to self (we're immutable), so slip the ID in
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# more sneakily.
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self._inner["id"] = id_
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class _Extension(_Extension, _STIXBase21):
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extension_type = None
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def __init__(self, **kwargs):
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super(_Extension, self).__init__(**kwargs)
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if getattr(self, "extension_type", None):
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self._inner["extension_type"] = self.extension_type
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def _check_at_least_one_property(self, list_of_properties=None):
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new_ext_check = getattr(self, "extension_type", None)
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if new_ext_check is None:
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super(_Extension, self)._check_at_least_one_property(list_of_properties=list_of_properties)
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class _DomainObject(_DomainObject, _STIXBase21):
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pass
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class _RelationshipObject(_RelationshipObject, _STIXBase21):
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pass
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