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cti-python-stix2/stix2/test/v21/test_markings.py

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# -*- coding: utf-8 -*-
import datetime as dt
import pytest
import pytz
import stix2
from stix2.v21 import TLP_WHITE
from .constants import IDENTITY_ID, MARKING_DEFINITION_ID
EXPECTED_TLP_MARKING_DEFINITION = """{
"type": "marking-definition",
"spec_version": "2.1",
"id": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9",
"created": "2017-01-20T00:00:00.000Z",
"definition_type": "tlp",
"name": "TLP:WHITE",
"definition": {
"tlp": "white"
}
}"""
EXPECTED_STATEMENT_MARKING_DEFINITION = """{
"type": "marking-definition",
"spec_version": "2.1",
"id": "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9",
"created": "2017-01-20T00:00:00.000Z",
"definition_type": "statement",
"definition": {
"statement": "Copyright 2016, Example Corp"
}
}"""
EXPECTED_CAMPAIGN_WITH_OBJECT_MARKING = """{
"type": "campaign",
"spec_version": "2.1",
"id": "campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
"created_by_ref": "identity--311b2d2d-f010-4473-83ec-1edf84858f4c",
"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_REF_MARKINGS = """{
"type": "campaign",
"spec_version": "2.1",
"id": "campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
"created_by_ref": "identity--311b2d2d-f010-4473-83ec-1edf84858f4c",
"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"
]
}
]
}"""
EXPECTED_CAMPAIGN_WITH_GRANULAR_LANG_MARKINGS = u"""{
"type": "campaign",
"spec_version": "2.1",
"id": "campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
"created_by_ref": "identity--311b2d2d-f010-4473-83ec-1edf84858f4c",
"created": "2016-04-06T20:03:00.000Z",
"modified": "2016-04-06T20:03:00.000Z",
"name": "Bank Attack",
"description": "Weitere Informationen über Banküberfall",
"lang": "en",
"granular_markings": [
{
"lang": "de",
"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.v21.MarkingDefinition(
id=MARKING_DEFINITION_ID,
created="2017-01-20T00:00:00.000Z",
definition_type="statement",
definition=stix2.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.v21.MarkingDefinition(
id=MARKING_DEFINITION_ID,
created="2017-01-20T00:00:00.000Z",
definition_type="statement",
definition=stix2.StatementMarking(**kwargs),
)
assert str(marking_definition) == EXPECTED_STATEMENT_MARKING_DEFINITION
def test_marking_def_invalid_type():
with pytest.raises(ValueError):
stix2.v21.MarkingDefinition(
id=MARKING_DEFINITION_ID,
created="2017-01-20T00:00:00.000Z",
definition_type="my-definition-type",
definition=stix2.StatementMarking("Copyright 2016, Example Corp"),
)
def test_campaign_with_markings_example():
campaign = stix2.v21.Campaign(
id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
created_by_ref=IDENTITY_ID,
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.v21.GranularMarking(
marking_ref=MARKING_DEFINITION_ID,
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.v21.GranularMarking(
marking_ref=MARKING_DEFINITION_ID,
selectors=["abc[0]"], # missing "."
)
assert excinfo.value.cls == stix2.v21.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.v21.Campaign(
id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
created_by_ref=IDENTITY_ID,
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.v21.GranularMarking(
marking_ref=MARKING_DEFINITION_ID,
selectors=["description"],
),
],
)
assert str(campaign) == EXPECTED_CAMPAIGN_WITH_GRANULAR_REF_MARKINGS
@pytest.mark.parametrize(
"data", [
EXPECTED_TLP_MARKING_DEFINITION,
{
"id": MARKING_DEFINITION_ID,
"spec_version": "2.1",
"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="2.1")
assert gm.type == 'marking-definition'
assert gm.spec_version == '2.1'
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.v21.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.v21.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.v21.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.v21.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):
# Test passing wrong type for properties.
@stix2.v21.CustomMarking('x-new-marking-type2', ("a", "b"))
class NewObject3(object):
pass
def test_campaign_add_markings():
campaign = stix2.v21.Campaign(
id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
created_by_ref=IDENTITY_ID,
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
def test_campaign_with_granular_lang_markings_example():
campaign = stix2.v21.Campaign(
id="campaign--8e2e2d2b-17d4-4cbf-938f-98ee46b3cd3f",
created_by_ref=IDENTITY_ID,
created="2016-04-06T20:03:00Z",
modified="2016-04-06T20:03:00Z",
name="Bank Attack",
lang="en",
description="Weitere Informationen über Banküberfall",
granular_markings=[
stix2.v21.GranularMarking(
lang="de",
selectors=["description"],
),
],
)
# In order to provide the same representation, we need to disable escaping
# in json.dumps(). https://docs.python.org/3/library/json.html#json.dumps
# or https://docs.python.org/2/library/json.html#json.dumps
assert campaign.serialize(pretty=True, ensure_ascii=False) == EXPECTED_CAMPAIGN_WITH_GRANULAR_LANG_MARKINGS
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