import datetime as dt import pytest import pytz import stix2 from stix2.v20 import TLP_WHITE from .constants import MARKING_DEFINITION_ID EXPECTED_TLP_MARKING_DEFINITION = """{ "type": "marking-definition", "id": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", "created": "2017-01-20T00:00:00.000Z", "definition_type": "tlp", "definition": { "tlp": "white" } }""" EXPECTED_STATEMENT_MARKING_DEFINITION = """{ "type": "marking-definition", "id": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", "created": "2017-01-20T00:00:00Z", "definition_type": "statement", "definition": { "statement": "Copyright 2016, Example Corp" } }""" EXPECTED_CAMPAIGN_WITH_OBJECT_MARKING = """{ "type": "campaign", "id": "campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f", "created_by_ref": "identity--f431f809-377b-45e0-aa1c-6a4751cae5ff", "created": "2016-04-06T20:03:00.000Z", "modified": "2016-04-06T20:03:00.000Z", "name": "Green Group Attacks Against Finance", "description": "Campaign by Green Group against a series of targets in the financial services sector.", "object_marking_refs": [ "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9" ] }""" EXPECTED_GRANULAR_MARKING = """{ "marking_ref": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", "selectors": [ "abc", "abc.[23]", "abc.def", "abc.[2].efg" ] }""" EXPECTED_CAMPAIGN_WITH_GRANULAR_MARKINGS = """{ "type": "campaign", "id": "campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f", "created_by_ref": "identity--f431f809-377b-45e0-aa1c-6a4751cae5ff", "created": "2016-04-06T20:03:00.000Z", "modified": "2016-04-06T20:03:00.000Z", "name": "Green Group Attacks Against Finance", "description": "Campaign by Green Group against a series of targets in the financial services sector.", "granular_markings": [ { "marking_ref": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", "selectors": [ "description" ] } ] }""" def test_marking_def_example_with_tlp(): assert str(TLP_WHITE) == EXPECTED_TLP_MARKING_DEFINITION def test_marking_def_example_with_statement_positional_argument(): marking_definition = stix2.v20.MarkingDefinition( id="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", created="2017-01-20T00:00:00.000Z", definition_type="statement", definition=stix2.v20.StatementMarking(statement="Copyright 2016, Example Corp"), ) assert str(marking_definition) == EXPECTED_STATEMENT_MARKING_DEFINITION def test_marking_def_example_with_kwargs_statement(): kwargs = dict(statement="Copyright 2016, Example Corp") marking_definition = stix2.v20.MarkingDefinition( id="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", created="2017-01-20T00:00:00.000Z", definition_type="statement", definition=stix2.v20.StatementMarking(**kwargs), ) assert str(marking_definition) == EXPECTED_STATEMENT_MARKING_DEFINITION def test_marking_def_invalid_type(): with pytest.raises(ValueError): stix2.v20.MarkingDefinition( id="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", created="2017-01-20T00:00:00.000Z", definition_type="my-definition-type", definition=stix2.v20.StatementMarking("Copyright 2016, Example Corp"), ) def test_campaign_with_markings_example(): campaign = stix2.v20.Campaign( id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f", created_by_ref="identity--f431f809-377b-45e0-aa1c-6a4751cae5ff", created="2016-04-06T20:03:00Z", modified="2016-04-06T20:03:00Z", name="Green Group Attacks Against Finance", description="Campaign by Green Group against a series of targets in the financial services sector.", object_marking_refs=TLP_WHITE, ) assert str(campaign) == EXPECTED_CAMPAIGN_WITH_OBJECT_MARKING def test_granular_example(): granular_marking = stix2.v20.GranularMarking( marking_ref="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", selectors=["abc", "abc.[23]", "abc.def", "abc.[2].efg"], ) assert str(granular_marking) == EXPECTED_GRANULAR_MARKING def test_granular_example_with_bad_selector(): with pytest.raises(stix2.exceptions.InvalidValueError) as excinfo: stix2.v20.GranularMarking( marking_ref="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", selectors=["abc[0]"], # missing "." ) assert excinfo.value.cls == stix2.v20.GranularMarking assert excinfo.value.prop_name == "selectors" assert excinfo.value.reason == "must adhere to selector syntax." assert str(excinfo.value) == "Invalid value for GranularMarking 'selectors': must adhere to selector syntax." def test_campaign_with_granular_markings_example(): campaign = stix2.v20.Campaign( id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f", created_by_ref="identity--f431f809-377b-45e0-aa1c-6a4751cae5ff", created="2016-04-06T20:03:00Z", modified="2016-04-06T20:03:00Z", name="Green Group Attacks Against Finance", description="Campaign by Green Group against a series of targets in the financial services sector.", granular_markings=[ stix2.v20.GranularMarking( marking_ref="marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", selectors=["description"], ), ], ) assert str(campaign) == EXPECTED_CAMPAIGN_WITH_GRANULAR_MARKINGS @pytest.mark.parametrize( "data", [ EXPECTED_TLP_MARKING_DEFINITION, { "id": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9", "type": "marking-definition", "created": "2017-01-20T00:00:00Z", "definition": { "tlp": "white", }, "definition_type": "tlp", }, ], ) def test_parse_marking_definition(data): gm = stix2.parse(data, version="2.0") assert gm.type == 'marking-definition' assert gm.id == MARKING_DEFINITION_ID assert gm.created == dt.datetime(2017, 1, 20, 0, 0, 0, tzinfo=pytz.utc) assert gm.definition.tlp == "white" assert gm.definition_type == "tlp" @stix2.v20.CustomMarking( 'x-new-marking-type', [ ('property1', stix2.properties.StringProperty(required=True)), ('property2', stix2.properties.IntegerProperty()), ], ) class NewMarking(object): def __init__(self, property2=None, **kwargs): if "property3" in kwargs and not isinstance(kwargs.get("property3"), int): raise TypeError("Must be integer!") def test_registered_custom_marking(): nm = NewMarking(property1='something', property2=55) marking_def = stix2.v20.MarkingDefinition( id="marking-definition--00000000-0000-4000-8000-000000000012", created="2017-01-22T00:00:00.000Z", definition_type="x-new-marking-type", definition=nm, ) assert marking_def.type == "marking-definition" assert marking_def.id == "marking-definition--00000000-0000-4000-8000-000000000012" assert marking_def.created == dt.datetime(2017, 1, 22, 0, 0, 0, tzinfo=pytz.utc) assert marking_def.definition.property1 == "something" assert marking_def.definition.property2 == 55 assert marking_def.definition_type == "x-new-marking-type" def test_registered_custom_marking_raises_exception(): with pytest.raises(TypeError) as excinfo: NewMarking(property1='something', property3='something', allow_custom=True) assert str(excinfo.value) == "Must be integer!" def test_not_registered_marking_raises_exception(): with pytest.raises(ValueError) as excinfo: # Used custom object on purpose to demonstrate a not-registered marking @stix2.v20.CustomObject( 'x-new-marking-type2', [ ('property1', stix2.properties.StringProperty(required=True)), ('property2', stix2.properties.IntegerProperty()), ], ) class NewObject2(object): def __init__(self, property2=None, **kwargs): return no = NewObject2(property1='something', property2=55) stix2.v20.MarkingDefinition( id="marking-definition--00000000-0000-4000-8000-000000000012", created="2017-01-22T00:00:00.000Z", definition_type="x-new-marking-type2", definition=no, ) assert str(excinfo.value) == "definition_type must be a valid marking type" def test_marking_wrong_type_construction(): with pytest.raises(ValueError) as excinfo: # Test passing wrong type for properties. @stix2.v20.CustomMarking('x-new-marking-type2', ("a", "b")) class NewObject3(object): pass assert str(excinfo.value) == "Must supply a list, containing tuples. For example, [('property1', IntegerProperty())]" def test_campaign_add_markings(): campaign = stix2.v20.Campaign( id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f", created_by_ref="identity--f431f809-377b-45e0-aa1c-6a4751cae5ff", created="2016-04-06T20:03:00Z", modified="2016-04-06T20:03:00Z", name="Green Group Attacks Against Finance", description="Campaign by Green Group against a series of targets in the financial services sector.", ) campaign = campaign.add_markings(TLP_WHITE) assert campaign.object_marking_refs[0] == TLP_WHITE.id