new: [cycat] minimal Python library to handle CyCAT.org url

first version to generate, build and validate CyCAT.org url
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Alexandre Dulaunoy 2021-02-27 17:17:54 +01:00
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# Byte-compiled / optimized / DLL files
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# Distribution / packaging
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build/
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# PyInstaller
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# before PyInstaller builds the exe, so as to inject date/other infos into it.
*.manifest
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# intended to run in multiple environments; otherwise, check them in:
# .python-version
# pipenv
# According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
# However, in case of collaboration, if having platform-specific dependencies or dependencies
# having no cross-platform support, pipenv may install dependencies that don't work, or not
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# CyCAT.org Python library
Minimal CyCAT.org Python library to handle [CyCAT.org url](https://cycat.org/services/concept/).
# Installation
~~~
pip3 install .
~~~
# Usage
## Generating CyCAT.org url
~~~python
from cycat import url
cycat_url = url.generate(publisher="samratashok", project="nishang")
~~~
## Validating CyCAT.org url
~~~python
from cycat import url
url.validate(url="misp:event:91b49dee-6d22-468a-87f4-fbd08997a2d4")
~~~
## Building valid CyCAT.org url
~~~python
from cycat import url
url.build(publisher="misp", project="EVENT", uuid="5c48e0b6-e9f6-455e-a228-90723004e65c")
~~~
# License
Copyright (c) 2021 Alexandre Dulaunoy
Copyright (c) 2021 CyCAT.org project
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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__version__ = '0.1.0'
from cycat.url import generate
from cycat.url import validate
from cycat.url import build

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Verifying and building CyCAT.org url
#
# Software is free software released under the "2-Clause BSD License"
#
# This software is part of cycat.org Python library
#
# Copyright (c) 2021 Alexandre Dulaunoy - a@foo.be
import uuid
import re
def generate(publisher=None, project=None):
"""Generate a CyCAT.org url for an item without associated UUID. The output url
is a fixed value based on the CyCAT namespace, the publisher and the UUID
hashed value from the publisher and project."""
if publisher is None or project is None:
return False
_uuid = uuid.uuid5(uuid.UUID("690b3b43-d689-481c-aa61-5351963a36f2"), "{}:{}:".format(publisher, project))
return "{}:{}:{}".format(publisher.lower(), project.lower(), _uuid)
def validate(url=None):
"""Validate a CyCAT.org url format including its UUID."""
if url is None:
return False
val = url.split(':')
if len(val) != 3:
return False
try:
_val = uuid.UUID(val[2])
except ValueError:
return False
return True
def build(publisher=None, project=None, uuid=None):
"""Generate a valid CyCAT.url based on the existing publisher, project and
UUID."""
if publisher is None or project is None or uuid is None:
return False
_url = "{}:{}:{}".format(publisher.lower(), project.lower(), uuid)
if validate(url=_url):
return _url
else:
return False

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[tool.poetry]
name = "cycat"
version = "0.1.0"
description = "CyCAT.org Python Library"
authors = ["Alexandre Dulaunoy <a@foo.be>"]
[tool.poetry.dependencies]
python = "^3.6"
[tool.poetry.dev-dependencies]
pytest = "^5.2"
[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"

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from cycat import __version__
from cycat import url
def test_version():
assert __version__ == '0.1.0'
def test_url_generate():
url.generate(publisher="misp", project="eveNT")
cycat_url = url.generate(publisher="samratashok", project="nishang")
return cycat_url
def test_url_validate():
return url.validate(url="misp:event:91b49dee-6d22-468a-87f4-fbd08997a2d4")
def test_url_build():
return url.build(publisher="misp", project="EVENT", uuid="5c48e0b6-e9f6-455e-a228-90723004e65c")
test_version()
assert test_url_generate() == 'samratashok:nishang:2605ff5e-342c-5326-8744-96a34b7e581e'
assert test_url_validate()
assert test_url_build() == 'misp:event:5c48e0b6-e9f6-455e-a228-90723004e65c'