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

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import pytest
import stix2
from stix2.exceptions import (
AtLeastOnePropertyError, CustomContentError, DictionaryKeyError,
)
from stix2.properties import (
BinaryProperty, BooleanProperty, DictionaryProperty,
EmbeddedObjectProperty, EnumProperty, ExtensionsProperty, FloatProperty,
HashesProperty, HexProperty, IDProperty, IntegerProperty, ListProperty,
Property, ReferenceProperty, StringProperty, TimestampProperty,
TypeProperty,
)
from stix2.v21.common import MarkingProperty
from . import constants
def test_property():
p = Property()
assert p.required is False
assert p.clean('foo') == 'foo'
assert p.clean(3) == 3
def test_basic_clean():
class Prop(Property):
def clean(self, value):
if value == 42:
return value
else:
raise ValueError("Must be 42")
p = Prop()
assert p.clean(42) == 42
with pytest.raises(ValueError):
p.clean(41)
def test_property_default():
class Prop(Property):
def default(self):
return 77
p = Prop()
assert p.default() == 77
def test_fixed_property():
p = Property(fixed="2.0")
assert p.clean("2.0")
with pytest.raises(ValueError):
assert p.clean("x") is False
with pytest.raises(ValueError):
assert p.clean(2.0) is False
assert p.default() == "2.0"
assert p.clean(p.default())
def test_list_property():
p = ListProperty(StringProperty)
assert p.clean(['abc', 'xyz'])
with pytest.raises(ValueError):
p.clean([])
def test_string_property():
prop = StringProperty()
assert prop.clean('foobar')
assert prop.clean(1)
assert prop.clean([1, 2, 3])
def test_type_property():
prop = TypeProperty('my-type')
assert prop.clean('my-type')
with pytest.raises(ValueError):
prop.clean('not-my-type')
assert prop.clean(prop.default())
ID_PROP = IDProperty('my-type', spec_version="2.1")
MY_ID = 'my-type--232c9d3f-49fc-4440-bb01-607f638778e7'
@pytest.mark.parametrize(
"value", [
MY_ID,
'my-type--00000000-0000-4000-8000-000000000000',
],
)
def test_id_property_valid(value):
assert ID_PROP.clean(value) == value
CONSTANT_IDS = [
constants.ATTACK_PATTERN_ID,
constants.CAMPAIGN_ID,
constants.COURSE_OF_ACTION_ID,
constants.IDENTITY_ID,
constants.INDICATOR_ID,
constants.INTRUSION_SET_ID,
constants.MALWARE_ID,
constants.MARKING_DEFINITION_ID,
constants.OBSERVED_DATA_ID,
constants.RELATIONSHIP_ID,
constants.REPORT_ID,
constants.SIGHTING_ID,
constants.THREAT_ACTOR_ID,
constants.TOOL_ID,
constants.VULNERABILITY_ID,
]
CONSTANT_IDS.extend(constants.MARKING_IDS)
CONSTANT_IDS.extend(constants.RELATIONSHIP_IDS)
@pytest.mark.parametrize("value", CONSTANT_IDS)
def test_id_property_valid_for_type(value):
type = value.split('--', 1)[0]
assert IDProperty(type=type, spec_version="2.1").clean(value) == value
def test_id_property_wrong_type():
with pytest.raises(ValueError) as excinfo:
ID_PROP.clean('not-my-type--232c9d3f-49fc-4440-bb01-607f638778e7')
assert str(excinfo.value) == "must start with 'my-type--'."
@pytest.mark.parametrize(
"value", [
'my-type--foo',
# Not a RFC 4122 UUID
'my-type--00000000-0000-0000-0000-000000000000',
],
)
def test_id_property_not_a_valid_hex_uuid(value):
with pytest.raises(ValueError):
ID_PROP.clean(value)
def test_id_property_default():
default = ID_PROP.default()
assert ID_PROP.clean(default) == default
@pytest.mark.parametrize(
"value", [
2,
-1,
3.14,
False,
],
)
def test_integer_property_valid(value):
int_prop = IntegerProperty()
assert int_prop.clean(value) is not None
@pytest.mark.parametrize(
"value", [
-1,
-100,
-50 * 6,
],
)
def test_integer_property_invalid_min_with_constraints(value):
int_prop = IntegerProperty(min=0, max=180)
with pytest.raises(ValueError) as excinfo:
int_prop.clean(value)
assert "minimum value is" in str(excinfo.value)
@pytest.mark.parametrize(
"value", [
181,
200,
50 * 6,
],
)
def test_integer_property_invalid_max_with_constraints(value):
int_prop = IntegerProperty(min=0, max=180)
with pytest.raises(ValueError) as excinfo:
int_prop.clean(value)
assert "maximum value is" in str(excinfo.value)
@pytest.mark.parametrize(
"value", [
"something",
StringProperty(),
],
)
def test_integer_property_invalid(value):
int_prop = IntegerProperty()
with pytest.raises(ValueError):
int_prop.clean(value)
@pytest.mark.parametrize(
"value", [
2,
-1,
3.14,
False,
],
)
def test_float_property_valid(value):
int_prop = FloatProperty()
assert int_prop.clean(value) is not None
@pytest.mark.parametrize(
"value", [
"something",
StringProperty(),
],
)
def test_float_property_invalid(value):
int_prop = FloatProperty()
with pytest.raises(ValueError):
int_prop.clean(value)
@pytest.mark.parametrize(
"value", [
True,
False,
'True',
'False',
'true',
'false',
'TRUE',
'FALSE',
'T',
'F',
't',
'f',
1,
0,
],
)
def test_boolean_property_valid(value):
bool_prop = BooleanProperty()
assert bool_prop.clean(value) is not None
@pytest.mark.parametrize(
"value", [
'abc',
['false'],
{'true': 'true'},
2,
-1,
],
)
def test_boolean_property_invalid(value):
bool_prop = BooleanProperty()
with pytest.raises(ValueError):
bool_prop.clean(value)
def test_reference_property():
ref_prop = ReferenceProperty(valid_types="my-type", spec_version="2.1")
assert ref_prop.clean("my-type--00000000-0000-4000-8000-000000000000")
with pytest.raises(ValueError):
ref_prop.clean("foo")
# This is not a valid RFC 4122 UUID
with pytest.raises(ValueError):
ref_prop.clean("my-type--00000000-0000-0000-0000-000000000000")
def test_reference_property_specific_type():
ref_prop = ReferenceProperty(valid_types="my-type", spec_version="2.1")
with pytest.raises(ValueError):
ref_prop.clean("not-my-type--8a8e8758-f92c-4058-ba38-f061cd42a0cf")
assert ref_prop.clean("my-type--8a8e8758-f92c-4058-ba38-f061cd42a0cf") == \
"my-type--8a8e8758-f92c-4058-ba38-f061cd42a0cf"
@pytest.mark.parametrize(
"value", [
'2017-01-01T12:34:56Z',
'2017-01-01 12:34:56',
'Jan 1 2017 12:34:56',
],
)
def test_timestamp_property_valid(value):
ts_prop = TimestampProperty()
assert ts_prop.clean(value) == constants.FAKE_TIME
def test_timestamp_property_invalid():
ts_prop = TimestampProperty()
with pytest.raises(ValueError):
ts_prop.clean(1)
with pytest.raises(ValueError):
ts_prop.clean("someday sometime")
def test_binary_property():
bin_prop = BinaryProperty()
assert bin_prop.clean("TG9yZW0gSXBzdW0=")
with pytest.raises(ValueError):
bin_prop.clean("foobar")
def test_hex_property():
hex_prop = HexProperty()
assert hex_prop.clean("4c6f72656d20497073756d")
with pytest.raises(ValueError):
hex_prop.clean("foobar")
@pytest.mark.parametrize(
"d", [
{'description': 'something'},
[('abc', 1), ('bcd', 2), ('cde', 3)],
],
)
def test_dictionary_property_valid(d):
dict_prop = DictionaryProperty(spec_version='2.1')
assert dict_prop.clean(d)
@pytest.mark.parametrize(
"d", [
[{'a': 'something'}, "Invalid dictionary key a: (shorter than 3 characters)."],
],
)
def test_dictionary_no_longer_raises(d):
dict_prop = DictionaryProperty(spec_version='2.1')
dict_prop.clean(d[0])
@pytest.mark.parametrize(
"d", [
[
{'a'*300: 'something'}, "Invalid dictionary key aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaa: (longer than 250 characters).",
],
[
{'Hey!': 'something'}, "Invalid dictionary key Hey!: (contains characters other than lowercase a-z, "
"uppercase A-Z, numerals 0-9, hyphen (-), or underscore (_)).",
],
],
)
def test_dictionary_property_invalid_key(d):
dict_prop = DictionaryProperty(spec_version='2.1')
with pytest.raises(DictionaryKeyError) as excinfo:
dict_prop.clean(d[0])
assert str(excinfo.value) == d[1]
@pytest.mark.parametrize(
"d", [
# TODO: This error message could be made more helpful. The error is caused
# because `json.loads()` doesn't like the *single* quotes around the key
# name, even though they are valid in a Python dictionary. While technically
# accurate (a string is not a dictionary), if we want to be able to load
# string-encoded "dictionaries" that are, we need a better error message
# or an alternative to `json.loads()` ... and preferably *not* `eval()`. :-)
# Changing the following to `'{"description": "something"}'` does not cause
# any ValueError to be raised.
("{'description': 'something'}", "The dictionary property must contain a dictionary"),
],
)
def test_dictionary_property_invalid(d):
dict_prop = DictionaryProperty(spec_version='2.1')
with pytest.raises(ValueError) as excinfo:
dict_prop.clean(d[0])
assert str(excinfo.value) == d[1]
def test_property_list_of_dictionary():
@stix2.v21.CustomObject(
'x-new-obj', [
('property1', ListProperty(DictionaryProperty(spec_version='2.1'), required=True)),
],
)
class NewObj():
pass
test_obj = NewObj(property1=[{'foo': 'bar'}])
assert test_obj.property1[0]['foo'] == 'bar'
@pytest.mark.parametrize(
"value", [
{"sha256": "6db12788c37247f2316052e142f42f4b259d6561751e5f401a1ae2a6df9c674b"},
[('MD5', '2dfb1bcc980200c6706feee399d41b3f'), ('RIPEMD-160', 'b3a8cd8a27c90af79b3c81754f267780f443dfef')],
],
)
def test_hashes_property_valid(value):
hash_prop = HashesProperty()
assert hash_prop.clean(value)
@pytest.mark.parametrize(
"value", [
{"MD5": "a"},
{"SHA-256": "2dfb1bcc980200c6706feee399d41b3f"},
],
)
def test_hashes_property_invalid(value):
hash_prop = HashesProperty()
with pytest.raises(ValueError):
hash_prop.clean(value)
def test_embedded_property():
emb_prop = EmbeddedObjectProperty(type=stix2.v21.EmailMIMEComponent)
mime = stix2.v21.EmailMIMEComponent(
content_type="text/plain; charset=utf-8",
content_disposition="inline",
body="Cats are funny!",
)
assert emb_prop.clean(mime)
with pytest.raises(ValueError):
emb_prop.clean("string")
@pytest.mark.parametrize(
"value", [
['a', 'b', 'c'],
('a', 'b', 'c'),
'b',
],
)
def test_enum_property_valid(value):
enum_prop = EnumProperty(value)
assert enum_prop.clean('b')
def test_enum_property_clean():
enum_prop = EnumProperty(['1'])
assert enum_prop.clean(1) == '1'
def test_enum_property_invalid():
enum_prop = EnumProperty(['a', 'b', 'c'])
with pytest.raises(ValueError):
enum_prop.clean('z')
def test_extension_property_valid():
ext_prop = ExtensionsProperty(spec_version='2.1', enclosing_type='file')
assert ext_prop({
'windows-pebinary-ext': {
'pe_type': 'exe',
},
})
def test_extension_property_invalid1():
ext_prop = ExtensionsProperty(spec_version='2.1', enclosing_type='file')
with pytest.raises(ValueError):
ext_prop.clean(1)
def test_extension_property_invalid2():
ext_prop = ExtensionsProperty(spec_version='2.1', enclosing_type='file')
with pytest.raises(CustomContentError):
ext_prop.clean(
{
'foobar-ext': {
'pe_type': 'exe',
},
},
)
def test_extension_property_invalid_type():
ext_prop = ExtensionsProperty(spec_version='2.1', enclosing_type='indicator')
with pytest.raises(CustomContentError) as excinfo:
ext_prop.clean(
{
'windows-pebinary-ext': {
'pe_type': 'exe',
},
},
)
assert "Can't parse unknown extension" in str(excinfo.value)
def test_extension_at_least_one_property_constraint():
with pytest.raises(AtLeastOnePropertyError):
stix2.v21.TCPExt()
def test_marking_property_error():
mark_prop = MarkingProperty()
with pytest.raises(ValueError) as excinfo:
mark_prop.clean('my-marking')
assert str(excinfo.value) == "must be a Statement, TLP Marking or a registered marking."
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