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cti-python-stix2
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Update SCO stuff to WD 05

master
Desai, Kartikey H 2019-08-19 09:39:13 -04:00
parent dee2f1f60c
commit ec55463398
9 changed files with 934 additions and 17 deletions
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47
stix2/base.py
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@ -3,10 +3,13 @@
import collections
import copy
import datetime as dt
import uuid
import simplejson as json
import six
from stix2.org.webpki.json.Canonicalize import canonicalize
from .exceptions import (
AtLeastOnePropertyError, CustomContentError, DependentPropertiesError,
ExtraPropertiesError, ImmutableError, InvalidObjRefError,
@ -309,6 +312,11 @@ class _Observable(_STIXBase):
self.__allow_custom = kwargs.get('allow_custom', False)
self._properties['extensions'].allow_custom = kwargs.get('allow_custom', False)
if 'id' not in kwargs:
possible_id = self._generate_id(kwargs)
if possible_id is not None:
kwargs['id'] = possible_id
super(_Observable, self).__init__(**kwargs)
def _check_ref(self, ref, prop, prop_name):
@ -347,6 +355,45 @@ class _Observable(_STIXBase):
for ref in kwargs[prop_name]:
self._check_ref(ref, prop, prop_name)
def _generate_id(self, kwargs):
required_prefix = self._type + "--"
namespace = uuid.UUID("00abedb4-aa42-466c-9c01-fed23315a9b7")
properties_to_use = self._id_contributing_properties
if properties_to_use:
streamlined_object = {}
if "hashes" in kwargs and "hashes" in properties_to_use:
possible_hash = self._choose_one_hash(kwargs["hashes"])
if possible_hash:
streamlined_object["hashes"] = possible_hash
for key in kwargs.keys():
if key in properties_to_use and key != "hashes":
streamlined_object[key] = kwargs[key]
if streamlined_object:
data = canonicalize(streamlined_object)
else:
return None
return required_prefix + str(uuid.uuid5(namespace, str(data)))
else:
return None
def _choose_one_hash(self, hash_dict):
if "MD5" in hash_dict:
return {"MD5": hash_dict["MD5"]}
elif "SHA-1" in hash_dict:
return {"SHA-1": hash_dict["SHA-1"]}
elif "SHA-256" in hash_dict:
return {"SHA-256": hash_dict["SHA-256"]}
elif "SHA-512" in hash_dict:
return {"SHA-512": hash_dict["SHA-512"]}
else:
# Cheesy way to pick the first item in the dictionary, since its not indexable
for (k, v) in hash_dict.items():
break
return {k: v}
class _Extension(_STIXBase):

0
stix2/org/__init__.py Normal file
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0
stix2/org/webpki/__init__.py Normal file
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503
stix2/org/webpki/json/Canonicalize.py Normal file
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@ -0,0 +1,503 @@
##############################################################################
# #
# Copyright 2006-2019 WebPKI.org (http://webpki.org). #
# #
# Licensed under the Apache License, Version 2.0 (the "License"); #
# you may not use this file except in compliance with the License. #
# You may obtain a copy of the License at #
# #
# https://www.apache.org/licenses/LICENSE-2.0 #
# #
# Unless required by applicable law or agreed to in writing, software #
# distributed under the License is distributed on an "AS IS" BASIS, #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
# See the License for the specific language governing permissions and #
# limitations under the License. #
# #
##############################################################################
#################################################
# JCS compatible JSON serializer for Python 3.x #
#################################################
# This file has been modified to be compatible with Python 2.x as well
import re
from stix2.org.webpki.json.NumberToJson import convert2Es6Format
try:
from _json import encode_basestring_ascii as c_encode_basestring_ascii
except ImportError:
c_encode_basestring_ascii = None
try:
from _json import encode_basestring as c_encode_basestring
except ImportError:
c_encode_basestring = None
try:
from _json import make_encoder as c_make_encoder
except ImportError:
c_make_encoder = None
ESCAPE = re.compile(r'[\x00-\x1f\\"\b\f\n\r\t]')
ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])')
HAS_UTF8 = re.compile(b'[\x80-\xff]')
ESCAPE_DCT = {
'\\': '\\\\',
'"': '\\"',
'\b': '\\b',
'\f': '\\f',
'\n': '\\n',
'\r': '\\r',
'\t': '\\t',
}
for i in range(0x20):
ESCAPE_DCT.setdefault(chr(i), '\\u{0:04x}'.format(i))
INFINITY = float('inf')
def py_encode_basestring(s):
"""Return a JSON representation of a Python string
"""
def replace(match):
return ESCAPE_DCT[match.group(0)]
return '"' + ESCAPE.sub(replace, s) + '"'
encode_basestring = (c_encode_basestring or py_encode_basestring)
def py_encode_basestring_ascii(s):
"""Return an ASCII-only JSON representation of a Python string
"""
def replace(match):
s = match.group(0)
try:
return ESCAPE_DCT[s]
except KeyError:
n = ord(s)
if n < 0x10000:
return '\\u{0:04x}'.format(n)
else:
# surrogate pair
n -= 0x10000
s1 = 0xd800 | ((n >> 10) & 0x3ff)
s2 = 0xdc00 | (n & 0x3ff)
return '\\u{0:04x}\\u{1:04x}'.format(s1, s2)
return '"' + ESCAPE_ASCII.sub(replace, s) + '"'
encode_basestring_ascii = (
c_encode_basestring_ascii or py_encode_basestring_ascii
)
class JSONEncoder(object):
"""Extensible JSON <http://json.org> encoder for Python data structures.
Supports the following objects and types by default:
+-------------------+---------------+
| Python | JSON |
+===================+===============+
| dict | object |
+-------------------+---------------+
| list, tuple | array |
+-------------------+---------------+
| str | string |
+-------------------+---------------+
| int, float | number |
+-------------------+---------------+
| True | true |
+-------------------+---------------+
| False | false |
+-------------------+---------------+
| None | null |
+-------------------+---------------+
To extend this to recognize other objects, subclass and implement a
``.default()`` method with another method that returns a serializable
object for ``o`` if possible, otherwise it should call the superclass
implementation (to raise ``TypeError``).
"""
item_separator = ', '
key_separator = ': '
def __init__(
self, skipkeys=False, ensure_ascii=False,
check_circular=True, allow_nan=True, sort_keys=True,
indent=None, separators=(',', ':'), default=None,
):
"""Constructor for JSONEncoder, with sensible defaults.
If skipkeys is false, then it is a TypeError to attempt
encoding of keys that are not str, int, float or None. If
skipkeys is True, such items are simply skipped.
If ensure_ascii is true, the output is guaranteed to be str
objects with all incoming non-ASCII characters escaped. If
ensure_ascii is false, the output can contain non-ASCII characters.
If check_circular is true, then lists, dicts, and custom encoded
objects will be checked for circular references during encoding to
prevent an infinite recursion (which would cause an OverflowError).
Otherwise, no such check takes place.
If allow_nan is true, then NaN, Infinity, and -Infinity will be
encoded as such. This behavior is not JSON specification compliant,
but is consistent with most JavaScript based encoders and decoders.
Otherwise, it will be a ValueError to encode such floats.
If sort_keys is true, then the output of dictionaries will be
sorted by key; this is useful for regression tests to ensure
that JSON serializations can be compared on a day-to-day basis.
If indent is a non-negative integer, then JSON array
elements and object members will be pretty-printed with that
indent level. An indent level of 0 will only insert newlines.
None is the most compact representation.
If specified, separators should be an (item_separator, key_separator)
tuple. The default is (', ', ': ') if *indent* is ``None`` and
(',', ': ') otherwise. To get the most compact JSON representation,
you should specify (',', ':') to eliminate whitespace.
If specified, default is a function that gets called for objects
that can't otherwise be serialized. It should return a JSON encodable
version of the object or raise a ``TypeError``.
"""
self.skipkeys = skipkeys
self.ensure_ascii = ensure_ascii
self.check_circular = check_circular
self.allow_nan = allow_nan
self.sort_keys = sort_keys
self.indent = indent
if separators is not None:
self.item_separator, self.key_separator = separators
elif indent is not None:
self.item_separator = ','
if default is not None:
self.default = default
def default(self, o):
"""Implement this method in a subclass such that it returns
a serializable object for ``o``, or calls the base implementation
(to raise a ``TypeError``).
For example, to support arbitrary iterators, you could
implement default like this::
def default(self, o):
try:
iterable = iter(o)
except TypeError:
pass
else:
return list(iterable)
# Let the base class default method raise the TypeError
return JSONEncoder.default(self, o)
"""
raise TypeError(
"Object of type '%s' is not JSON serializable" %
o.__class__.__name__,
)
def encode(self, o):
"""Return a JSON string representation of a Python data structure.
>>> from json.encoder import JSONEncoder
>>> JSONEncoder().encode({"foo": ["bar", "baz"]})
'{"foo": ["bar", "baz"]}'
"""
# This is for extremely simple cases and benchmarks.
if isinstance(o, str):
if self.ensure_ascii:
return encode_basestring_ascii(o)
else:
return encode_basestring(o)
# This doesn't pass the iterator directly to ''.join() because the
# exceptions aren't as detailed. The list call should be roughly
# equivalent to the PySequence_Fast that ''.join() would do.
chunks = self.iterencode(o, _one_shot=False)
if not isinstance(chunks, (list, tuple)):
chunks = list(chunks)
return ''.join(chunks)
def iterencode(self, o, _one_shot=False):
"""Encode the given object and yield each string
representation as available.
For example::
for chunk in JSONEncoder().iterencode(bigobject):
mysocket.write(chunk)
"""
if self.check_circular:
markers = {}
else:
markers = None
if self.ensure_ascii:
_encoder = encode_basestring_ascii
else:
_encoder = encode_basestring
def floatstr(
o, allow_nan=self.allow_nan,
_repr=float.__repr__, _inf=INFINITY, _neginf=-INFINITY,
):
# Check for specials. Note that this type of test is processor
# and/or platform-specific, so do tests which don't depend on the
# internals.
if o != o:
text = 'NaN'
elif o == _inf:
text = 'Infinity'
elif o == _neginf:
text = '-Infinity'
else:
return _repr(o)
if not allow_nan:
raise ValueError(
"Out of range float values are not JSON compliant: " +
repr(o),
)
return text
if (
_one_shot and c_make_encoder is not None
and self.indent is None
):
_iterencode = c_make_encoder(
markers, self.default, _encoder, self.indent,
self.key_separator, self.item_separator, self.sort_keys,
self.skipkeys, self.allow_nan,
)
else:
_iterencode = _make_iterencode(
markers, self.default, _encoder, self.indent, floatstr,
self.key_separator, self.item_separator, self.sort_keys,
self.skipkeys, _one_shot,
)
return _iterencode(o, 0)
def _make_iterencode(
markers, _default, _encoder, _indent, _floatstr,
_key_separator, _item_separator, _sort_keys, _skipkeys, _one_shot,
# HACK: hand-optimized bytecode; turn globals into locals
ValueError=ValueError,
dict=dict,
float=float,
id=id,
int=int,
isinstance=isinstance,
list=list,
str=str,
tuple=tuple,
_intstr=int.__str__,
):
if _indent is not None and not isinstance(_indent, str):
_indent = ' ' * _indent
def _iterencode_list(lst, _current_indent_level):
if not lst:
yield '[]'
return
if markers is not None:
markerid = id(lst)
if markerid in markers:
raise ValueError("Circular reference detected")
markers[markerid] = lst
buf = '['
if _indent is not None:
_current_indent_level += 1
newline_indent = '\n' + _indent * _current_indent_level
separator = _item_separator + newline_indent
buf += newline_indent
else:
newline_indent = None
separator = _item_separator
first = True
for value in lst:
if first:
first = False
else:
buf = separator
if isinstance(value, str):
yield buf + _encoder(value)
elif value is None:
yield buf + 'null'
elif value is True:
yield buf + 'true'
elif value is False:
yield buf + 'false'
elif isinstance(value, int):
# Subclasses of int/float may override __str__, but we still
# want to encode them as integers/floats in JSON. One example
# within the standard library is IntEnum.
yield buf + convert2Es6Format(value)
elif isinstance(value, float):
# see comment above for int
yield buf + convert2Es6Format(value)
else:
yield buf
if isinstance(value, (list, tuple)):
chunks = _iterencode_list(value, _current_indent_level)
elif isinstance(value, dict):
chunks = _iterencode_dict(value, _current_indent_level)
else:
chunks = _iterencode(value, _current_indent_level)
# yield from chunks
for chunk in chunks:
yield chunk
if newline_indent is not None:
_current_indent_level -= 1
yield '\n' + _indent * _current_indent_level
yield ']'
if markers is not None:
del markers[markerid]
def _iterencode_dict(dct, _current_indent_level):
if not dct:
yield '{}'
return
if markers is not None:
markerid = id(dct)
if markerid in markers:
raise ValueError("Circular reference detected")
markers[markerid] = dct
yield '{'
if _indent is not None:
_current_indent_level += 1
newline_indent = '\n' + _indent * _current_indent_level
item_separator = _item_separator + newline_indent
yield newline_indent
else:
newline_indent = None
item_separator = _item_separator
first = True
if _sort_keys:
items = sorted(dct.items(), key=lambda kv: kv[0].encode('utf-16_be'))
else:
items = dct.items()
for key, value in items:
if isinstance(key, str):
pass
# JavaScript is weakly typed for these, so it makes sense to
# also allow them. Many encoders seem to do something like this.
elif isinstance(key, float):
# see comment for int/float in _make_iterencode
key = convert2Es6Format(key)
elif key is True:
key = 'true'
elif key is False:
key = 'false'
elif key is None:
key = 'null'
elif isinstance(key, int):
# see comment for int/float in _make_iterencode
key = convert2Es6Format(key)
elif _skipkeys:
continue
else:
raise TypeError("key " + repr(key) + " is not a string")
if first:
first = False
else:
yield item_separator
yield _encoder(key)
yield _key_separator
if isinstance(value, str):
yield _encoder(value)
elif value is None:
yield 'null'
elif value is True:
yield 'true'
elif value is False:
yield 'false'
elif isinstance(value, int):
# see comment for int/float in _make_iterencode
yield convert2Es6Format(value)
elif isinstance(value, float):
# see comment for int/float in _make_iterencode
yield convert2Es6Format(value)
else:
if isinstance(value, (list, tuple)):
chunks = _iterencode_list(value, _current_indent_level)
elif isinstance(value, dict):
chunks = _iterencode_dict(value, _current_indent_level)
else:
chunks = _iterencode(value, _current_indent_level)
# yield from chunks
for chunk in chunks:
yield chunk
if newline_indent is not None:
_current_indent_level -= 1
yield '\n' + _indent * _current_indent_level
yield '}'
if markers is not None:
del markers[markerid]
def _iterencode(o, _current_indent_level):
if isinstance(o, str):
yield _encoder(o)
elif o is None:
yield 'null'
elif o is True:
yield 'true'
elif o is False:
yield 'false'
elif isinstance(o, int):
# see comment for int/float in _make_iterencode
yield convert2Es6Format(o)
elif isinstance(o, float):
# see comment for int/float in _make_iterencode
yield convert2Es6Format(o)
elif isinstance(o, (list, tuple)):
# yield from _iterencode_list(o, _current_indent_level)
for thing in _iterencode_list(o, _current_indent_level):
yield thing
elif isinstance(o, dict):
# yield from _iterencode_dict(o, _current_indent_level)
for thing in _iterencode_dict(o, _current_indent_level):
yield thing
else:
if markers is not None:
markerid = id(o)
if markerid in markers:
raise ValueError("Circular reference detected")
markers[markerid] = o
o = _default(o)
# yield from _iterencode(o, _current_indent_level)
for thing in _iterencode(o, _current_indent_level):
yield thing
if markers is not None:
del markers[markerid]
return _iterencode
def canonicalize(obj, utf8=True):
textVal = JSONEncoder(sort_keys=True).encode(obj)
if utf8:
return textVal.encode()
return textVal
def serialize(obj, utf8=True):
textVal = JSONEncoder(sort_keys=False).encode(obj)
if utf8:
return textVal.encode()
return textVal

254
stix2/org/webpki/json/LICENSE Normal file
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@ -0,0 +1,254 @@
A. HISTORY OF THE SOFTWARE
==========================
Python was created in the early 1990s by Guido van Rossum at Stichting
Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
as a successor of a language called ABC. Guido remains Python's
principal author, although it includes many contributions from others.
In 1995, Guido continued his work on Python at the Corporation for
National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
in Reston, Virginia where he released several versions of the
software.
In May 2000, Guido and the Python core development team moved to
BeOpen.com to form the BeOpen PythonLabs team. In October of the same
year, the PythonLabs team moved to Digital Creations, which became
Zope Corporation. In 2001, the Python Software Foundation (PSF, see
https://www.python.org/psf/) was formed, a non-profit organization
created specifically to own Python-related Intellectual Property.
Zope Corporation was a sponsoring member of the PSF.
All Python releases are Open Source (see http://www.opensource.org for
the Open Source Definition). Historically, most, but not all, Python
releases have also been GPL-compatible; the table below summarizes
the various releases.
Release Derived Year Owner GPL-
from compatible? (1)
0.9.0 thru 1.2 1991-1995 CWI yes
1.3 thru 1.5.2 1.2 1995-1999 CNRI yes
1.6 1.5.2 2000 CNRI no
2.0 1.6 2000 BeOpen.com no
1.6.1 1.6 2001 CNRI yes (2)
2.1 2.0+1.6.1 2001 PSF no
2.0.1 2.0+1.6.1 2001 PSF yes
2.1.1 2.1+2.0.1 2001 PSF yes
2.1.2 2.1.1 2002 PSF yes
2.1.3 2.1.2 2002 PSF yes
2.2 and above 2.1.1 2001-now PSF yes
Footnotes:
(1) GPL-compatible doesn't mean that we're distributing Python under
the GPL. All Python licenses, unlike the GPL, let you distribute
a modified version without making your changes open source. The
GPL-compatible licenses make it possible to combine Python with
other software that is released under the GPL; the others don't.
(2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
because its license has a choice of law clause. According to
CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
is "not incompatible" with the GPL.
Thanks to the many outside volunteers who have worked under Guido's
direction to make these releases possible.
B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
===============================================================
PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
--------------------------------------------
1. This LICENSE AGREEMENT is between the Python Software Foundation
("PSF"), and the Individual or Organization ("Licensee") accessing and
otherwise using this software ("Python") in source or binary form and
its associated documentation.
2. Subject to the terms and conditions of this License Agreement, PSF hereby
grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
analyze, test, perform and/or display publicly, prepare derivative works,
distribute, and otherwise use Python alone or in any derivative version,
provided, however, that PSF's License Agreement and PSF's notice of copyright,
i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Python Software Foundation; All
Rights Reserved" are retained in Python alone or in any derivative version
prepared by Licensee.
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python.
4. PSF is making Python available to Licensee on an "AS IS"
basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
6. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
7. Nothing in this License Agreement shall be deemed to create any
relationship of agency, partnership, or joint venture between PSF and
Licensee. This License Agreement does not grant permission to use PSF
trademarks or trade name in a trademark sense to endorse or promote
products or services of Licensee, or any third party.
8. By copying, installing or otherwise using Python, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
-------------------------------------------
BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
Individual or Organization ("Licensee") accessing and otherwise using
this software in source or binary form and its associated
documentation ("the Software").
2. Subject to the terms and conditions of this BeOpen Python License
Agreement, BeOpen hereby grants Licensee a non-exclusive,
royalty-free, world-wide license to reproduce, analyze, test, perform
and/or display publicly, prepare derivative works, distribute, and
otherwise use the Software alone or in any derivative version,
provided, however, that the BeOpen Python License is retained in the
Software, alone or in any derivative version prepared by Licensee.
3. BeOpen is making the Software available to Licensee on an "AS IS"
basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
INFRINGE ANY THIRD PARTY RIGHTS.
4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
5. This License Agreement will automatically terminate upon a material
breach of its terms and conditions.
6. This License Agreement shall be governed by and interpreted in all
respects by the law of the State of California, excluding conflict of
law provisions. Nothing in this License Agreement shall be deemed to
create any relationship of agency, partnership, or joint venture
between BeOpen and Licensee. This License Agreement does not grant
permission to use BeOpen trademarks or trade names in a trademark
sense to endorse or promote products or services of Licensee, or any
third party. As an exception, the "BeOpen Python" logos available at
http://www.pythonlabs.com/logos.html may be used according to the
permissions granted on that web page.
7. By copying, installing or otherwise using the software, Licensee
agrees to be bound by the terms and conditions of this License
Agreement.
CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
---------------------------------------
1. This LICENSE AGREEMENT is between the Corporation for National
Research Initiatives, having an office at 1895 Preston White Drive,
Reston, VA 20191 ("CNRI"), and the Individual or Organization
("Licensee") accessing and otherwise using Python 1.6.1 software in
source or binary form and its associated documentation.
2. Subject to the terms and conditions of this License Agreement, CNRI
hereby grants Licensee a nonexclusive, royalty-free, world-wide
license to reproduce, analyze, test, perform and/or display publicly,
prepare derivative works, distribute, and otherwise use Python 1.6.1
alone or in any derivative version, provided, however, that CNRI's
License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
1995-2001 Corporation for National Research Initiatives; All Rights
Reserved" are retained in Python 1.6.1 alone or in any derivative
version prepared by Licensee. Alternately, in lieu of CNRI's License
Agreement, Licensee may substitute the following text (omitting the
quotes): "Python 1.6.1 is made available subject to the terms and
conditions in CNRI's License Agreement. This Agreement together with
Python 1.6.1 may be located on the Internet using the following
unique, persistent identifier (known as a handle): 1895.22/1013. This
Agreement may also be obtained from a proxy server on the Internet
using the following URL: http://hdl.handle.net/1895.22/1013".
3. In the event Licensee prepares a derivative work that is based on
or incorporates Python 1.6.1 or any part thereof, and wants to make
the derivative work available to others as provided herein, then
Licensee hereby agrees to include in any such work a brief summary of
the changes made to Python 1.6.1.
4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
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8. By clicking on the "ACCEPT" button where indicated, or by copying,
installing or otherwise using Python 1.6.1, Licensee agrees to be
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ACCEPT
CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
--------------------------------------------------
Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
The Netherlands. All rights reserved.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the name of Stichting Mathematisch
Centrum or CWI not be used in advertising or publicity pertaining to
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permission.
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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95
stix2/org/webpki/json/NumberToJson.py Normal file
View File

@ -0,0 +1,95 @@
##############################################################################
# #
# Copyright 2006-2019 WebPKI.org (http://webpki.org). #
# #
# Licensed under the Apache License, Version 2.0 (the "License"); #
# you may not use this file except in compliance with the License. #
# You may obtain a copy of the License at #
# #
# https://www.apache.org/licenses/LICENSE-2.0 #
# #
# Unless required by applicable law or agreed to in writing, software #
# distributed under the License is distributed on an "AS IS" BASIS, #
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
# See the License for the specific language governing permissions and #
# limitations under the License. #
# #
##############################################################################
##################################################################
# Convert a Python double/float into an ES6/V8 compatible string #
##################################################################
def convert2Es6Format(value):
# Convert double/float to str using the native Python formatter
fvalue = float(value)
# Zero is a special case. The following line takes "-0" case as well
if fvalue == 0:
return '0'
# The rest of the algorithm works on the textual representation only
pyDouble = str(fvalue)
# The following line catches the "inf" and "nan" values returned by str(fvalue)
if pyDouble.find('n') >= 0:
raise ValueError("Invalid JSON number: " + pyDouble)
# Save sign separately, it doesn't have any role in the algorithm
pySign = ''
if pyDouble.find('-') == 0:
pySign = '-'
pyDouble = pyDouble[1:]
# Now we should only have valid non-zero values
pyExpStr = ''
pyExpVal = 0
q = pyDouble.find('e')
if q > 0:
# Grab the exponent and remove it from the number
pyExpStr = pyDouble[q:]
if pyExpStr[2:3] == '0':
# Supress leading zero on exponents
pyExpStr = pyExpStr[:2] + pyExpStr[3:]
pyDouble = pyDouble[0:q]
pyExpVal = int(pyExpStr[1:])
# Split number in pyFirst + pyDot + pyLast
pyFirst = pyDouble
pyDot = ''
pyLast = ''
q = pyDouble.find('.')
if q > 0:
pyDot = '.'
pyFirst = pyDouble[:q]
pyLast = pyDouble[q + 1:]
# Now the string is split into: pySign + pyFirst + pyDot + pyLast + pyExpStr
if pyLast == '0':
# Always remove trailing .0
pyDot = ''
pyLast = ''
if pyExpVal > 0 and pyExpVal < 21:
# Integers are shown as is with up to 21 digits
pyFirst += pyLast
pyLast = ''
pyDot = ''
pyExpStr = ''
q = pyExpVal - len(pyFirst)
while q >= 0:
q -= 1
pyFirst += '0'
elif pyExpVal < 0 and pyExpVal > -7:
# Small numbers are shown as 0.etc with e-6 as lower limit
pyLast = pyFirst + pyLast
pyFirst = '0'
pyDot = '.'
pyExpStr = ''
q = pyExpVal
while q < -1:
q += 1
pyLast = '0' + pyLast
# The resulting sub-strings are concatenated
return pySign + pyFirst + pyDot + pyLast + pyExpStr

0
stix2/org/webpki/json/__init__.py Normal file
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0
stix2/test/v21/test_observables.py Normal file
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52
stix2/v21/observables.py
View File

@ -28,7 +28,7 @@ class Artifact(_Observable):
_type = 'artifact'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('mime_type', StringProperty()),
('payload_bin', BinaryProperty()),
('url', StringProperty()),
@ -37,6 +37,7 @@ class Artifact(_Observable):
('decryption_key', StringProperty()),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["hashes", "payload_bin"]
def _check_object_constraints(self):
super(Artifact, self)._check_object_constraints()
@ -53,12 +54,13 @@ class AutonomousSystem(_Observable):
_type = 'autonomous-system'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('number', IntegerProperty(required=True)),
('name', StringProperty()),
('rir', StringProperty()),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["number"]
class Directory(_Observable):
@ -70,7 +72,7 @@ class Directory(_Observable):
_type = 'directory'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('path', StringProperty(required=True)),
('path_enc', StringProperty()),
# these are not the created/modified timestamps of the object itself
@ -80,6 +82,7 @@ class Directory(_Observable):
('contains_refs', ListProperty(ObjectReferenceProperty(valid_types=['file', 'directory']))),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["path"]
class DomainName(_Observable):
@ -91,11 +94,12 @@ class DomainName(_Observable):
_type = 'domain-name'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types=['ipv4-addr', 'ipv6-addr', 'domain-name']))),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class EmailAddress(_Observable):
@ -107,12 +111,13 @@ class EmailAddress(_Observable):
_type = 'email-addr'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('display_name', StringProperty()),
('belongs_to_ref', ObjectReferenceProperty(valid_types='user-account')),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class EmailMIMEComponent(_STIXBase):
@ -142,7 +147,7 @@ class EmailMessage(_Observable):
_type = 'email-message'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('is_multipart', BooleanProperty(required=True)),
('date', TimestampProperty()),
('content_type', StringProperty()),
@ -159,6 +164,7 @@ class EmailMessage(_Observable):
('raw_email_ref', ObjectReferenceProperty(valid_types='artifact')),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["from_ref", "subject", "body"]
def _check_object_constraints(self):
super(EmailMessage, self)._check_object_constraints()
@ -329,7 +335,7 @@ class File(_Observable):
_type = 'file'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('hashes', HashesProperty(spec_version='2.1')),
('size', IntegerProperty(min=0)),
('name', StringProperty()),
@ -345,6 +351,7 @@ class File(_Observable):
('content_ref', ObjectReferenceProperty(valid_types='artifact')),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["hashes", "name", "extensions"]
def _check_object_constraints(self):
super(File, self)._check_object_constraints()
@ -360,12 +367,13 @@ class IPv4Address(_Observable):
_type = 'ipv4-addr'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types='mac-addr'))),
('belongs_to_refs', ListProperty(ObjectReferenceProperty(valid_types='autonomous-system'))),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class IPv6Address(_Observable):
@ -377,12 +385,13 @@ class IPv6Address(_Observable):
_type = 'ipv6-addr'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('resolves_to_refs', ListProperty(ObjectReferenceProperty(valid_types='mac-addr'))),
('belongs_to_refs', ListProperty(ObjectReferenceProperty(valid_types='autonomous-system'))),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class MACAddress(_Observable):
@ -394,10 +403,11 @@ class MACAddress(_Observable):
_type = 'mac-addr'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class Mutex(_Observable):
@ -409,10 +419,11 @@ class Mutex(_Observable):
_type = 'mutex'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('name', StringProperty(required=True)),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["name"]
class HTTPRequestExt(_Extension):
@ -516,7 +527,7 @@ class NetworkTraffic(_Observable):
_type = 'network-traffic'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('start', TimestampProperty()),
('end', TimestampProperty()),
('is_active', BooleanProperty()),
@ -536,6 +547,7 @@ class NetworkTraffic(_Observable):
('encapsulates_by_ref', ObjectReferenceProperty(valid_types='network-traffic')),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["start", "src_ref", "dst_ref", "src_port", "dst_port", "protocols"]
def _check_object_constraints(self):
super(NetworkTraffic, self)._check_object_constraints()
@ -651,6 +663,7 @@ class Process(_Observable):
('child_refs', ListProperty(ObjectReferenceProperty('process'))),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = []
def _check_object_constraints(self):
# no need to check windows-service-ext, since it has a required property
@ -676,7 +689,7 @@ class Software(_Observable):
_type = 'software'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('name', StringProperty(required=True)),
('cpe', StringProperty()),
('languages', ListProperty(StringProperty)),
@ -684,6 +697,7 @@ class Software(_Observable):
('version', StringProperty()),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["name", "cpe", "vendor", "version"]
class URL(_Observable):
@ -695,10 +709,11 @@ class URL(_Observable):
_type = 'url'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('value', StringProperty(required=True)),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["value"]
class UNIXAccountExt(_Extension):
@ -725,7 +740,7 @@ class UserAccount(_Observable):
_type = 'user-account'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('user_id', StringProperty()),
('credential', StringProperty()),
('account_login', StringProperty()),
@ -742,6 +757,7 @@ class UserAccount(_Observable):
('account_last_login', TimestampProperty()),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["account_type", "user_id", "account_login"]
class WindowsRegistryValueType(_STIXBase):
@ -783,7 +799,7 @@ class WindowsRegistryKey(_Observable):
_type = 'windows-registry-key'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('key', StringProperty()),
('values', ListProperty(EmbeddedObjectProperty(type=WindowsRegistryValueType))),
# this is not the modified timestamps of the object itself
@ -792,6 +808,7 @@ class WindowsRegistryKey(_Observable):
('number_of_subkeys', IntegerProperty()),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["key", "values"]
@property
def values(self):
@ -835,7 +852,7 @@ class X509Certificate(_Observable):
_type = 'x509-certificate'
_properties = OrderedDict([
('type', TypeProperty(_type)),
('id', IDProperty(_type)),
('id', IDProperty(_type, spec_version='2.1')),
('is_self_signed', BooleanProperty()),
('hashes', HashesProperty(spec_version='2.1')),
('version', StringProperty()),
@ -851,6 +868,7 @@ class X509Certificate(_Observable):
('x509_v3_extensions', EmbeddedObjectProperty(type=X509V3ExtenstionsType)),
('extensions', ExtensionsProperty(spec_version='2.1', enclosing_type=_type)),
])
_id_contributing_properties = ["hashes", "serial_number"]
def CustomObservable(type='x-custom-observable', properties=None):