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Initial version with only pbkdf2-sha256 support

main
Gergely Polonkai 2 years ago
commit 86484a091f
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  1. 29
      LICENSE
  2. 6
      README.rst
  3. 65
      passlib_werkzeug/__init__.py
  4. 186
      poetry.lock
  5. 17
      pyproject.toml
  6. 0
      tests/__init__.py
  7. 22
      tests/test_passlib_werkzeug.py

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BSD 3-Clause License
Copyright (c) 2021, Gergely Polonkai
All rights reserved.
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.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
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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================
Passlib-Werkzeug
================
Passlib handlers to understand password hashes generated by Werkzeug’s ``generate_password_hash``,
and to generate hashes understood by ``check_password_hash``.

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"""Passlib module to understand hashed password format of Werkzeug
"""
__version__ = '0.1.0'
from base64 import b64encode
from passlib.crypto.digest import pbkdf2_hmac
from passlib.exc import InvalidHashError
from passlib.registry import register_crypt_handler_path
import passlib.utils.handlers as uh
from passlib.utils.binary import AB64_CHARS, ab64_decode, ab64_encode
from passlib.utils.compat import u
SALT_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
class werkzeug_pbkdf2_sha256(uh.HasSalt, uh.HasRounds, uh.GenericHandler):
checksum_chars = AB64_CHARS
checksum_size = 64
default_rounds = 150000
default_salt_chars = SALT_CHARS
default_salt_size = 8
_digest = 'sha256'
ident = u('pbkdf2:sha256')
max_rounds = 0xffffffff
max_salt_size = None
min_salt_size = 1
name = 'werkzeug_pbkdf2_sha256'
salt_chars = SALT_CHARS
setting_kwds = ('salt', 'salt_size')
werkzeug_name = 'pbkdf2:sha256'
@classmethod
def from_string(cls, password_hash):
"""Create a new hash object from a string
"""
try:
full_method, salt, checksum = password_hash.split('$')
except ValueError as exc:
raise InvalidHashError(cls) from exc
method, digest, rounds = full_method.split(':')
if ':'.join((method, digest)) != cls.ident:
raise InvalidHashError(cls)
if checksum:
bytes.fromhex(checksum)
return cls(salt=salt, checksum=checksum, rounds=int(rounds))
def to_string(self):
full_method = ':'.join((self.ident, str(self.rounds)))
return '$'.join((full_method, self.salt, self.checksum))
def _calc_checksum(self, secret):
checksum = pbkdf2_hmac(self._digest, secret, self.salt, self.rounds)
return checksum.hex()
register_crypt_handler_path('werkzeug_pbkdf2_sha256', 'passlib_werkzeug')

186
poetry.lock generated

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[[package]]
name = "atomicwrites"
version = "1.4.0"
description = "Atomic file writes."
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[[package]]
name = "attrs"
version = "20.3.0"
description = "Classes Without Boilerplate"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[package.extras]
dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
docs = ["furo", "sphinx", "zope.interface"]
tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
[[package]]
name = "colorama"
version = "0.4.4"
description = "Cross-platform colored terminal text."
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
[[package]]
name = "more-itertools"
version = "8.7.0"
description = "More routines for operating on iterables, beyond itertools"
category = "dev"
optional = false
python-versions = ">=3.5"
[[package]]
name = "packaging"
version = "20.9"
description = "Core utilities for Python packages"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[package.dependencies]
pyparsing = ">=2.0.2"
[[package]]
name = "passlib"
version = "1.7.4"
description = "comprehensive password hashing framework supporting over 30 schemes"
category = "main"
optional = false
python-versions = "*"
[package.extras]
argon2 = ["argon2-cffi (>=18.2.0)"]
bcrypt = ["bcrypt (>=3.1.0)"]
build_docs = ["sphinx (>=1.6)", "sphinxcontrib-fulltoc (>=1.2.0)", "cloud-sptheme (>=1.10.1)"]
totp = ["cryptography"]
[[package]]
name = "pluggy"
version = "0.13.1"
description = "plugin and hook calling mechanisms for python"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[package.extras]
dev = ["pre-commit", "tox"]
[[package]]
name = "py"
version = "1.10.0"
description = "library with cross-python path, ini-parsing, io, code, log facilities"
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
[[package]]
name = "pyparsing"
version = "2.4.7"
description = "Python parsing module"
category = "dev"
optional = false
python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
[[package]]
name = "pytest"
version = "5.4.3"
description = "pytest: simple powerful testing with Python"
category = "dev"
optional = false
python-versions = ">=3.5"
[package.dependencies]
atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
attrs = ">=17.4.0"
colorama = {version = "*", markers = "sys_platform == \"win32\""}
more-itertools = ">=4.0.0"
packaging = "*"
pluggy = ">=0.12,<1.0"
py = ">=1.5.0"
wcwidth = "*"
[package.extras]
checkqa-mypy = ["mypy (==v0.761)"]
testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
[[package]]
name = "wcwidth"
version = "0.2.5"
description = "Measures the displayed width of unicode strings in a terminal"
category = "dev"
optional = false
python-versions = "*"
[[package]]
name = "werkzeug"
version = "1.0.1"
description = "The comprehensive WSGI web application library."
category = "dev"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
[package.extras]
dev = ["pytest", "pytest-timeout", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
watchdog = ["watchdog"]
[metadata]
lock-version = "1.1"
python-versions = "^3.9"
content-hash = "d434f83fdf87891fd386ad18a85c40f7191d6ceee7841d1c96e7f1e210448377"
[metadata.files]
atomicwrites = [
{file = "atomicwrites-1.4.0-py2.py3-none-any.whl", hash = "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197"},
{file = "atomicwrites-1.4.0.tar.gz", hash = "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"},
]
attrs = [
{file = "attrs-20.3.0-py2.py3-none-any.whl", hash = "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6"},
{file = "attrs-20.3.0.tar.gz", hash = "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"},
]
colorama = [
{file = "colorama-0.4.4-py2.py3-none-any.whl", hash = "sha256:9f47eda37229f68eee03b24b9748937c7dc3868f906e8ba69fbcbdd3bc5dc3e2"},
{file = "colorama-0.4.4.tar.gz", hash = "sha256:5941b2b48a20143d2267e95b1c2a7603ce057ee39fd88e7329b0c292aa16869b"},
]
more-itertools = [
{file = "more-itertools-8.7.0.tar.gz", hash = "sha256:c5d6da9ca3ff65220c3bfd2a8db06d698f05d4d2b9be57e1deb2be5a45019713"},
{file = "more_itertools-8.7.0-py3-none-any.whl", hash = "sha256:5652a9ac72209ed7df8d9c15daf4e1aa0e3d2ccd3c87f8265a0673cd9cbc9ced"},
]
packaging = [
{file = "packaging-20.9-py2.py3-none-any.whl", hash = "sha256:67714da7f7bc052e064859c05c595155bd1ee9f69f76557e21f051443c20947a"},
{file = "packaging-20.9.tar.gz", hash = "sha256:5b327ac1320dc863dca72f4514ecc086f31186744b84a230374cc1fd776feae5"},
]
passlib = [
{file = "passlib-1.7.4-py2.py3-none-any.whl", hash = "sha256:aa6bca462b8d8bda89c70b382f0c298a20b5560af6cbfa2dce410c0a2fb669f1"},
{file = "passlib-1.7.4.tar.gz", hash = "sha256:defd50f72b65c5402ab2c573830a6978e5f202ad0d984793c8dde2c4152ebe04"},
]
pluggy = [
{file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
{file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
]
py = [
{file = "py-1.10.0-py2.py3-none-any.whl", hash = "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"},
{file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
]
pyparsing = [
{file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
{file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
]
pytest = [
{file = "pytest-5.4.3-py3-none-any.whl", hash = "sha256:5c0db86b698e8f170ba4582a492248919255fcd4c79b1ee64ace34301fb589a1"},
{file = "pytest-5.4.3.tar.gz", hash = "sha256:7979331bfcba207414f5e1263b5a0f8f521d0f457318836a7355531ed1a4c7d8"},
]
wcwidth = [
{file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
{file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
]
werkzeug = [
{file = "Werkzeug-1.0.1-py2.py3-none-any.whl", hash = "sha256:2de2a5db0baeae7b2d2664949077c2ac63fbd16d98da0ff71837f7d1dea3fd43"},
{file = "Werkzeug-1.0.1.tar.gz", hash = "sha256:6c80b1e5ad3665290ea39320b91e1be1e0d5f60652b964a3070216de83d2e47c"},
]

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[tool.poetry]
name = "passlib-werkzeug"
version = "0.1.0"
description = ""
authors = ["Gergely Polonkai <gergely@polonkai.eu>"]
[tool.poetry.dependencies]
python = "^3.9"
passlib = "^1.7.4"
[tool.poetry.dev-dependencies]
pytest = "^5.2"
Werkzeug = "^1.0.1"
[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"

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from passlib.registry import get_crypt_handler
from werkzeug.security import check_password_hash, generate_password_hash
from passlib_werkzeug import __version__
def test_version():
assert __version__ == '0.1.0'
def test_werkzeug_understands_our_pbkdf2_sha256():
handler = get_crypt_handler('werkzeug_pbkdf2_sha256')
passlib_hash = handler.using(rounds=150000, salt_size=8).hash('password')
assert check_password_hash(passlib_hash, 'password')
def test_we_understand_werkzeug_pbkdf2_sha256():
handler = get_crypt_handler('werkzeug_pbkdf2_sha256')
werkzeug_hash = generate_password_hash('password')
assert handler.verify('password', werkzeug_hash)
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