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Current File : /lib/python3/dist-packages/passlib/tests/test_handlers_django.py
"""passlib.tests.test_handlers_django - tests for passlib hash algorithms"""
#=============================================================================
# imports
#=============================================================================
from __future__ import with_statement
# core
import logging; log = logging.getLogger(__name__)
import re
import warnings
# site
# pkg
from passlib import hash
from passlib.utils import repeat_string
from passlib.utils.compat import u
from passlib.tests.utils import TestCase, HandlerCase, skipUnless, SkipTest
from passlib.tests.test_handlers import UPASS_USD, UPASS_TABLE
from passlib.tests.test_ext_django import DJANGO_VERSION, MIN_DJANGO_VERSION, \
    check_django_hasher_has_backend
# module

#=============================================================================
# django
#=============================================================================

# standard string django uses
UPASS_LETMEIN = u('l\xe8tmein')

def vstr(version):
    return ".".join(str(e) for e in version)

class _DjangoHelper(TestCase):
    """
    mixin for HandlerCase subclasses that are testing a hasher
    which is also present in django.
    """
    __unittest_skip = True

    #: minimum django version where hash alg is present / that we support testing against
    min_django_version = MIN_DJANGO_VERSION

    #: max django version where hash alg is present
    #: TODO: for a bunch of the tests below, this is just max version where
    #:       settings.PASSWORD_HASHERS includes it by default -- could add helper to patch
    #:       desired django hasher back in for duration of test.
    #: XXX: change this to "disabled_in_django_version" instead?
    max_django_version = None

    def _require_django_support(self):
        # make sure min django version
        if DJANGO_VERSION < self.min_django_version:
            raise self.skipTest("Django >= %s not installed" % vstr(self.min_django_version))
        if self.max_django_version and DJANGO_VERSION > self.max_django_version:
            raise self.skipTest("Django <= %s not installed" % vstr(self.max_django_version))

        # make sure django has a backend for specified hasher
        name = self.handler.django_name
        if not check_django_hasher_has_backend(name):
            raise self.skipTest('django hasher %r not available' % name)

        return True

    extra_fuzz_verifiers = HandlerCase.fuzz_verifiers + (
        "fuzz_verifier_django",
    )

    def fuzz_verifier_django(self):
        try:
            self._require_django_support()
        except SkipTest:
            return None
        from django.contrib.auth.hashers import check_password

        def verify_django(secret, hash):
            """django/check_password"""
            if self.handler.name == "django_bcrypt" and hash.startswith("bcrypt$$2y$"):
                hash = hash.replace("$$2y$", "$$2a$")
            if isinstance(secret, bytes):
                secret = secret.decode("utf-8")
            return check_password(secret, hash)
        return verify_django

    def test_90_django_reference(self):
        """run known correct hashes through Django's check_password()"""
        self._require_django_support()
        # XXX: esp. when it's no longer supported by django,
        #      should verify it's *NOT* recognized
        from django.contrib.auth.hashers import check_password
        assert self.known_correct_hashes
        for secret, hash in self.iter_known_hashes():
            self.assertTrue(check_password(secret, hash),
                            "secret=%r hash=%r failed to verify" %
                            (secret, hash))
            self.assertFalse(check_password('x' + secret, hash),
                            "mangled secret=%r hash=%r incorrect verified" %
                            (secret, hash))

    def test_91_django_generation(self):
        """test against output of Django's make_password()"""
        self._require_django_support()
        # XXX: esp. when it's no longer supported by django,
        #      should verify it's *NOT* recognized
        from passlib.utils import tick
        from django.contrib.auth.hashers import make_password
        name = self.handler.django_name # set for all the django_* handlers
        end = tick() + self.max_fuzz_time/2
        generator = self.FuzzHashGenerator(self, self.getRandom())
        while tick() < end:
            secret, other = generator.random_password_pair()
            if not secret: # django rejects empty passwords.
                continue
            if isinstance(secret, bytes):
                secret = secret.decode("utf-8")
            hash = make_password(secret, hasher=name)
            self.assertTrue(self.do_identify(hash))
            self.assertTrue(self.do_verify(secret, hash))
            self.assertFalse(self.do_verify(other, hash))

class django_disabled_test(HandlerCase):
    """test django_disabled"""
    handler = hash.django_disabled
    disabled_contains_salt = True

    known_correct_hashes = [
        # *everything* should hash to "!", and nothing should verify
        ("password", "!"),
        ("", "!"),
        (UPASS_TABLE, "!"),
    ]

    known_alternate_hashes = [
        # django 1.6 appends random alpnum string
        ("!9wa845vn7098ythaehasldkfj", "password", "!"),
    ]

class django_des_crypt_test(HandlerCase, _DjangoHelper):
    """test django_des_crypt"""
    handler = hash.django_des_crypt
    max_django_version = (1,9)

    known_correct_hashes = [
        # ensures only first two digits of salt count.
        ("password",         'crypt$c2$c2M87q...WWcU'),
        ("password",         'crypt$c2e86$c2M87q...WWcU'),
        ("passwordignoreme", 'crypt$c2.AZ$c2M87q...WWcU'),

        # ensures utf-8 used for unicode
        (UPASS_USD, 'crypt$c2e86$c2hN1Bxd6ZiWs'),
        (UPASS_TABLE, 'crypt$0.aQs$0.wB.TT0Czvlo'),
        (u("hell\u00D6"), "crypt$sa$saykDgk3BPZ9E"),

        # prevent regression of issue 22
        ("foo", 'crypt$MNVY.9ajgdvDQ$MNVY.9ajgdvDQ'),
    ]

    known_alternate_hashes = [
        # ensure django 1.4 empty salt field is accepted;
        # but that salt field is re-filled (for django 1.0 compatibility)
        ('crypt$$c2M87q...WWcU', "password", 'crypt$c2$c2M87q...WWcU'),
    ]

    known_unidentified_hashes = [
        'sha1$aa$bb',
    ]

    known_malformed_hashes = [
        # checksum too short
        'crypt$c2$c2M87q',

        # salt must be >2
        'crypt$f$c2M87q...WWcU',

        # make sure first 2 chars of salt & chk field agree.
        'crypt$ffe86$c2M87q...WWcU',
    ]

class django_salted_md5_test(HandlerCase, _DjangoHelper):
    """test django_salted_md5"""
    handler = hash.django_salted_md5
    max_django_version = (1,9)

    known_correct_hashes = [
        # test extra large salt
        ("password",    'md5$123abcdef$c8272612932975ee80e8a35995708e80'),

        # test django 1.4 alphanumeric salt
        ("test", 'md5$3OpqnFAHW5CT$54b29300675271049a1ebae07b395e20'),

        # ensures utf-8 used for unicode
        (UPASS_USD,     'md5$c2e86$92105508419a81a6babfaecf876a2fa0'),
        (UPASS_TABLE,   'md5$d9eb8$01495b32852bffb27cf5d4394fe7a54c'),
    ]

    known_unidentified_hashes = [
        'sha1$aa$bb',
    ]

    known_malformed_hashes = [
        # checksum too short
        'md5$aa$bb',
    ]

    class FuzzHashGenerator(HandlerCase.FuzzHashGenerator):

        def random_salt_size(self):
            # workaround for django14 regression --
            # 1.4 won't accept hashes with empty salt strings, unlike 1.3 and earlier.
            # looks to be fixed in a future release -- https://code.djangoproject.com/ticket/18144
            # for now, we avoid salt_size==0 under 1.4
            handler = self.handler
            default = handler.default_salt_size
            assert handler.min_salt_size == 0
            lower = 1
            upper = handler.max_salt_size or default*4
            return self.randintgauss(lower, upper, default, default*.5)

class django_salted_sha1_test(HandlerCase, _DjangoHelper):
    """test django_salted_sha1"""
    handler = hash.django_salted_sha1
    max_django_version = (1,9)

    known_correct_hashes = [
        # test extra large salt
        ("password",'sha1$123abcdef$e4a1877b0e35c47329e7ed7e58014276168a37ba'),

        # test django 1.4 alphanumeric salt
        ("test", 'sha1$bcwHF9Hy8lxS$6b4cfa0651b43161c6f1471ce9523acf1f751ba3'),

        # ensures utf-8 used for unicode
        (UPASS_USD,     'sha1$c2e86$0f75c5d7fbd100d587c127ef0b693cde611b4ada'),
        (UPASS_TABLE,   'sha1$6d853$ef13a4d8fb57aed0cb573fe9c82e28dc7fd372d4'),

        # generic password
        ("MyPassword",  'sha1$54123$893cf12e134c3c215f3a76bd50d13f92404a54d3'),
    ]

    known_unidentified_hashes = [
        'md5$aa$bb',
    ]

    known_malformed_hashes = [
        # checksum too short
        'sha1$c2e86$0f75',
    ]

    # reuse custom random_salt_size() helper...
    FuzzHashGenerator = django_salted_md5_test.FuzzHashGenerator

class django_pbkdf2_sha256_test(HandlerCase, _DjangoHelper):
    """test django_pbkdf2_sha256"""
    handler = hash.django_pbkdf2_sha256

    known_correct_hashes = [
        #
        # custom - generated via django 1.4 hasher
        #
        ('not a password',
         'pbkdf2_sha256$10000$kjVJaVz6qsnJ$5yPHw3rwJGECpUf70daLGhOrQ5+AMxIJdz1c3bqK1Rs='),
        (UPASS_TABLE,
         'pbkdf2_sha256$10000$bEwAfNrH1TlQ$OgYUblFNUX1B8GfMqaCYUK/iHyO0pa7STTDdaEJBuY0='),
    ]

class django_pbkdf2_sha1_test(HandlerCase, _DjangoHelper):
    """test django_pbkdf2_sha1"""
    handler = hash.django_pbkdf2_sha1

    known_correct_hashes = [
        #
        # custom - generated via django 1.4 hashers
        #
        ('not a password',
         'pbkdf2_sha1$10000$wz5B6WkasRoF$atJmJ1o+XfJxKq1+Nu1f1i57Z5I='),
        (UPASS_TABLE,
         'pbkdf2_sha1$10000$KZKWwvqb8BfL$rw5pWsxJEU4JrZAQhHTCO+u0f5Y='),
    ]

@skipUnless(hash.bcrypt.has_backend(), "no bcrypt backends available")
class django_bcrypt_test(HandlerCase, _DjangoHelper):
    """test django_bcrypt"""
    handler = hash.django_bcrypt
    # XXX: not sure when this wasn't in default list anymore. somewhere in [2.0 - 2.2]
    max_django_version = (2, 0)
    fuzz_salts_need_bcrypt_repair = True

    known_correct_hashes = [
        #
        # just copied and adapted a few test vectors from bcrypt (above),
        # since django_bcrypt is just a wrapper for the real bcrypt class.
        #
        ('', 'bcrypt$$2a$06$DCq7YPn5Rq63x1Lad4cll.TV4S6ytwfsfvkgY8jIucDrjc8deX1s.'),
        ('abcdefghijklmnopqrstuvwxyz',
             'bcrypt$$2a$10$fVH8e28OQRj9tqiDXs1e1uxpsjN0c7II7YPKXua2NAKYvM6iQk7dq'),
        (UPASS_TABLE,
                'bcrypt$$2a$05$Z17AXnnlpzddNUvnC6cZNOSwMA/8oNiKnHTHTwLlBijfucQQlHjaG'),
    ]

    # NOTE: the following have been cloned from _bcrypt_test()

    def populate_settings(self, kwds):
        # speed up test w/ lower rounds
        kwds.setdefault("rounds", 4)
        super(django_bcrypt_test, self).populate_settings(kwds)

    class FuzzHashGenerator(HandlerCase.FuzzHashGenerator):

        def random_rounds(self):
            # decrease default rounds for fuzz testing to speed up volume.
            return self.randintgauss(5, 8, 6, 1)

        def random_ident(self):
            # omit multi-ident tests, only $2a$ counts for this class
            # XXX: enable this to check 2a / 2b?
            return None

@skipUnless(hash.bcrypt.has_backend(), "no bcrypt backends available")
class django_bcrypt_sha256_test(HandlerCase, _DjangoHelper):
    """test django_bcrypt_sha256"""
    handler = hash.django_bcrypt_sha256
    forbidden_characters = None
    fuzz_salts_need_bcrypt_repair = True

    known_correct_hashes = [
        #
        # custom - generated via django 1.6 hasher
        #
        ('',
            'bcrypt_sha256$$2a$06$/3OeRpbOf8/l6nPPRdZPp.nRiyYqPobEZGdNRBWihQhiFDh1ws1tu'),
        (UPASS_LETMEIN,
            'bcrypt_sha256$$2a$08$NDjSAIcas.EcoxCRiArvT.MkNiPYVhrsrnJsRkLueZOoV1bsQqlmC'),
        (UPASS_TABLE,
            'bcrypt_sha256$$2a$06$kCXUnRFQptGg491siDKNTu8RxjBGSjALHRuvhPYNFsa4Ea5d9M48u'),

        # test >72 chars is hashed correctly -- under bcrypt these hash the same.
        (repeat_string("abc123",72),
            'bcrypt_sha256$$2a$06$Tg/oYyZTyAf.Nb3qSgN61OySmyXA8FoY4PjGizjE1QSDfuL5MXNni'),
        (repeat_string("abc123",72)+"qwr",
            'bcrypt_sha256$$2a$06$Tg/oYyZTyAf.Nb3qSgN61Ocy0BEz1RK6xslSNi8PlaLX2pe7x/KQG'),
        (repeat_string("abc123",72)+"xyz",
            'bcrypt_sha256$$2a$06$Tg/oYyZTyAf.Nb3qSgN61OvY2zoRVUa2Pugv2ExVOUT2YmhvxUFUa'),
    ]

    known_malformed_hashers = [
        # data in django salt field
        'bcrypt_sha256$xyz$2a$06$/3OeRpbOf8/l6nPPRdZPp.nRiyYqPobEZGdNRBWihQhiFDh1ws1tu',
    ]

    # NOTE: the following have been cloned from _bcrypt_test()

    def populate_settings(self, kwds):
        # speed up test w/ lower rounds
        kwds.setdefault("rounds", 4)
        super(django_bcrypt_sha256_test, self).populate_settings(kwds)

    class FuzzHashGenerator(HandlerCase.FuzzHashGenerator):

        def random_rounds(self):
            # decrease default rounds for fuzz testing to speed up volume.
            return self.randintgauss(5, 8, 6, 1)

        def random_ident(self):
            # omit multi-ident tests, only $2a$ counts for this class
            # XXX: enable this to check 2a / 2b?
            return None

from passlib.tests.test_handlers_argon2 import _base_argon2_test

@skipUnless(hash.argon2.has_backend(), "no argon2 backends available")
class django_argon2_test(HandlerCase, _DjangoHelper):
    """test django_bcrypt"""
    handler = hash.django_argon2

    # NOTE: most of this adapted from _base_argon2_test & argon2pure test

    known_correct_hashes = [
        # sample test
        ("password", 'argon2$argon2i$v=19$m=256,t=1,p=1$c29tZXNhbHQ$AJFIsNZTMKTAewB4+ETN1A'),

        # sample w/ all parameters different
        ("password", 'argon2$argon2i$v=19$m=380,t=2,p=2$c29tZXNhbHQ$SrssP8n7m/12VWPM8dvNrw'),

        # generated from django 1.10.3
        (UPASS_LETMEIN, 'argon2$argon2i$v=19$m=512,t=2,p=2$V25jN1l4UUJZWkR1$MxpA1BD2Gh7+D79gaAw6sQ'),
    ]

    def setUpWarnings(self):
        super(django_argon2_test, self).setUpWarnings()
        warnings.filterwarnings("ignore", ".*Using argon2pure backend.*")

    def do_stub_encrypt(self, handler=None, **settings):
        # overriding default since no way to get stub config from argon2._calc_hash()
        # (otherwise test_21b_max_rounds blocks trying to do max rounds)
        handler = (handler or self.handler).using(**settings)
        self = handler.wrapped(use_defaults=True)
        self.checksum = self._stub_checksum
        assert self.checksum
        return handler._wrap_hash(self.to_string())

    def test_03_legacy_hash_workflow(self):
        # override base method
        raise self.skipTest("legacy 1.6 workflow not supported")

    class FuzzHashGenerator(_base_argon2_test.FuzzHashGenerator):

        def random_type(self):
            # override default since django only uses type I (see note in class)
            return "I"

        def random_rounds(self):
            # decrease default rounds for fuzz testing to speed up volume.
            return self.randintgauss(1, 3, 2, 1)

#=============================================================================
# eof
#=============================================================================

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