/usr/share/pyshared/passlib/tests/test_utils_handlers.py is in python-passlib 1.5.3-0ubuntu1.
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#=========================================================
#imports
#=========================================================
from __future__ import with_statement
#core
import re
import hashlib
from logging import getLogger
import warnings
#site
#pkg
from passlib.hash import ldap_md5
from passlib.registry import _unload_handler_name as unload_handler_name, \
register_crypt_handler, get_crypt_handler
from passlib.utils import rng, getrandstr, handlers as uh, bytes, b, \
to_hash_str, to_unicode, MissingBackendError, jython_vm
from passlib.tests.utils import HandlerCase, TestCase, catch_warnings, \
dummy_handler_in_registry
#module
log = getLogger(__name__)
#=========================================================
#test support classes - StaticHandler, GenericHandler, etc
#=========================================================
class SkeletonTest(TestCase):
"test hash support classes"
#=========================================================
#StaticHandler
#=========================================================
def test_00_static_handler(self):
"test StaticHandler helper class"
class d1(uh.StaticHandler):
name = "d1"
context_kwds = ("flag",)
@classmethod
def genhash(cls, secret, hash, flag=False):
if isinstance(hash, bytes):
hash = hash.decode("ascii")
if hash not in (u'a',u'b'):
raise ValueError
return to_hash_str(u'b' if flag else u'a')
#check default identify method
self.assertTrue(d1.identify(u'a'))
self.assertTrue(d1.identify(b('a')))
self.assertTrue(d1.identify(u'b'))
self.assertFalse(d1.identify(u'c'))
self.assertFalse(d1.identify(b('c')))
self.assertFalse(d1.identify(u''))
self.assertFalse(d1.identify(None))
#check default genconfig method
self.assertIs(d1.genconfig(), None)
d1._stub_config = u'b'
self.assertEqual(d1.genconfig(), to_hash_str('b'))
#check default verify method
self.assertTrue(d1.verify('s','a'))
self.assertTrue(d1.verify('s',u'a'))
self.assertFalse(d1.verify('s','b'))
self.assertFalse(d1.verify('s',u'b'))
self.assertTrue(d1.verify('s', 'b', flag=True))
self.assertRaises(ValueError, d1.verify, 's', 'c')
#check default encrypt method
self.assertEqual(d1.encrypt('s'), to_hash_str('a'))
self.assertEqual(d1.encrypt('s'), to_hash_str('a'))
self.assertEqual(d1.encrypt('s', flag=True), to_hash_str('b'))
#=========================================================
#GenericHandler & mixins
#=========================================================
def test_10_identify(self):
"test GenericHandler.identify()"
class d1(uh.GenericHandler):
@classmethod
def from_string(cls, hash):
if hash == 'a':
return cls(checksum='a')
else:
raise ValueError
#check fallback
self.assertFalse(d1.identify(None))
self.assertFalse(d1.identify(''))
self.assertTrue(d1.identify('a'))
self.assertFalse(d1.identify('b'))
#check ident-based
d1.ident = u'!'
self.assertFalse(d1.identify(None))
self.assertFalse(d1.identify(''))
self.assertTrue(d1.identify('!a'))
self.assertFalse(d1.identify('a'))
def test_11_norm_checksum(self):
"test GenericHandler.norm_checksum()"
class d1(uh.GenericHandler):
name = 'd1'
checksum_size = 4
checksum_chars = 'x'
self.assertRaises(ValueError, d1.norm_checksum, 'xxx')
self.assertEqual(d1.norm_checksum('xxxx'), 'xxxx')
self.assertRaises(ValueError, d1.norm_checksum, 'xxxxx')
self.assertRaises(ValueError, d1.norm_checksum, 'xxyx')
def test_20_norm_salt(self):
"test GenericHandler+HasSalt: .norm_salt(), .generate_salt()"
class d1(uh.HasSalt, uh.GenericHandler):
name = 'd1'
setting_kwds = ('salt',)
min_salt_size = 1
max_salt_size = 3
default_salt_size = 2
salt_chars = 'a'
#check salt=None
self.assertEqual(d1.norm_salt(None), 'aa')
self.assertRaises(ValueError, d1.norm_salt, None, strict=True)
#check small & large salts
with catch_warnings():
warnings.filterwarnings("ignore", ".* salt string must be at (least|most) .*", UserWarning)
self.assertEqual(d1.norm_salt('aaaa'), 'aaa')
self.assertRaises(ValueError, d1.norm_salt, '')
self.assertRaises(ValueError, d1.norm_salt, 'aaaa', strict=True)
#check generate salt (indirectly)
self.assertEqual(len(d1.norm_salt(None)), 2)
self.assertEqual(len(d1.norm_salt(None,salt_size=1)), 1)
self.assertEqual(len(d1.norm_salt(None,salt_size=3)), 3)
self.assertEqual(len(d1.norm_salt(None,salt_size=5)), 3)
self.assertRaises(ValueError, d1.norm_salt, None, salt_size=5, strict=True)
def test_21_norm_salt(self):
"test GenericHandler+HasSalt: .norm_salt(), .generate_salt() - with no max_salt_size"
class d1(uh.HasSalt, uh.GenericHandler):
name = 'd1'
setting_kwds = ('salt',)
min_salt_size = 1
max_salt_size = None
default_salt_size = 2
salt_chars = 'a'
#check salt=None
self.assertEqual(d1.norm_salt(None), 'aa')
self.assertRaises(ValueError, d1.norm_salt, None, strict=True)
#check small & large salts
self.assertRaises(ValueError, d1.norm_salt, '')
self.assertEqual(d1.norm_salt('aaaa', strict=True), 'aaaa')
#check generate salt (indirectly)
self.assertEqual(len(d1.norm_salt(None)), 2)
self.assertEqual(len(d1.norm_salt(None,salt_size=1)), 1)
self.assertEqual(len(d1.norm_salt(None,salt_size=3)), 3)
self.assertEqual(len(d1.norm_salt(None,salt_size=5)), 5)
def test_30_norm_rounds(self):
"test GenericHandler+HasRounds: .norm_rounds()"
class d1(uh.HasRounds, uh.GenericHandler):
name = 'd1'
setting_kwds = ('rounds',)
min_rounds = 1
max_rounds = 3
default_rounds = 2
#check rounds=None
self.assertEqual(d1.norm_rounds(None), 2)
self.assertRaises(ValueError, d1.norm_rounds, None, strict=True)
#check small & large rounds
with catch_warnings():
warnings.filterwarnings("ignore", ".* does not allow (less|more) than \d rounds: .*", UserWarning)
self.assertEqual(d1.norm_rounds(0), 1)
self.assertEqual(d1.norm_rounds(4), 3)
self.assertRaises(ValueError, d1.norm_rounds, 0, strict=True)
self.assertRaises(ValueError, d1.norm_rounds, 4, strict=True)
#check no default rounds
d1.default_rounds = None
self.assertRaises(ValueError, d1.norm_rounds, None)
def test_40_backends(self):
"test GenericHandler+HasManyBackends"
class d1(uh.HasManyBackends, uh.GenericHandler):
name = 'd1'
setting_kwds = ()
backends = ("a", "b")
_has_backend_a = False
_has_backend_b = False
def _calc_checksum_a(self, secret):
return 'a'
def _calc_checksum_b(self, secret):
return 'b'
#test no backends
self.assertRaises(MissingBackendError, d1.get_backend)
self.assertRaises(MissingBackendError, d1.set_backend)
self.assertRaises(MissingBackendError, d1.set_backend, 'any')
self.assertRaises(MissingBackendError, d1.set_backend, 'default')
self.assertFalse(d1.has_backend())
#enable 'b' backend
d1._has_backend_b = True
#test lazy load
obj = d1()
self.assertEqual(obj.calc_checksum('s'), 'b')
#test repeat load
d1.set_backend('b')
d1.set_backend('any')
self.assertEqual(obj.calc_checksum('s'), 'b')
#test unavailable
self.assertRaises(MissingBackendError, d1.set_backend, 'a')
self.assertTrue(d1.has_backend('b'))
self.assertFalse(d1.has_backend('a'))
#enable 'a' backend also
d1._has_backend_a = True
#test explicit
self.assertTrue(d1.has_backend())
d1.set_backend('a')
self.assertEqual(obj.calc_checksum('s'), 'a')
#test unknown backend
self.assertRaises(ValueError, d1.set_backend, 'c')
self.assertRaises(ValueError, d1.has_backend, 'c')
def test_50_bh_norm_ident(self):
"test GenericHandler+HasManyIdents: .norm_ident() & .identify()"
class d1(uh.HasManyIdents, uh.GenericHandler):
name = 'd1'
setting_kwds = ('ident',)
ident_values = [ u"!A", u"!B" ]
ident_aliases = { u"A": u"!A"}
#check ident=None w/ no default
self.assertIs(d1.norm_ident(None), None)
self.assertRaises(ValueError, d1.norm_ident, None, strict=True)
#check ident=None w/ default
d1.default_ident = u"!A"
self.assertEqual(d1.norm_ident(None), u'!A')
self.assertRaises(ValueError, d1.norm_ident, None, strict=True)
#check explicit
self.assertEqual(d1.norm_ident(u'!A'), u'!A')
self.assertEqual(d1.norm_ident(u'!B'), u'!B')
self.assertRaises(ValueError, d1.norm_ident, u'!C')
#check aliases
self.assertEqual(d1.norm_ident(u'A'), u'!A')
self.assertRaises(ValueError, d1.norm_ident, u'B')
#check identify
self.assertTrue(d1.identify(u"!Axxx"))
self.assertTrue(d1.identify(u"!Bxxx"))
self.assertFalse(d1.identify(u"!Cxxx"))
self.assertFalse(d1.identify(u"A"))
self.assertFalse(d1.identify(u""))
self.assertFalse(d1.identify(None))
#=========================================================
#eoc
#=========================================================
#=========================================================
#PrefixWrapper
#=========================================================
class PrefixWrapperTest(TestCase):
"test PrefixWrapper class"
def test_00_lazy_loading(self):
"test PrefixWrapper lazy loading of handler"
d1 = uh.PrefixWrapper("d1", "ldap_md5", "{XXX}", "{MD5}", lazy=True)
#check base state
self.assertEqual(d1._wrapped_name, "ldap_md5")
self.assertIs(d1._wrapped_handler, None)
#check loading works
self.assertIs(d1.wrapped, ldap_md5)
self.assertIs(d1._wrapped_handler, ldap_md5)
#replace w/ wrong handler, make sure doesn't reload w/ dummy
with dummy_handler_in_registry("ldap_md5") as dummy:
self.assertIs(d1.wrapped, ldap_md5)
def test_01_active_loading(self):
"test PrefixWrapper active loading of handler"
d1 = uh.PrefixWrapper("d1", "ldap_md5", "{XXX}", "{MD5}")
#check base state
self.assertEqual(d1._wrapped_name, "ldap_md5")
self.assertIs(d1._wrapped_handler, ldap_md5)
self.assertIs(d1.wrapped, ldap_md5)
#replace w/ wrong handler, make sure doesn't reload w/ dummy
with dummy_handler_in_registry("ldap_md5") as dummy:
self.assertIs(d1.wrapped, ldap_md5)
def test_02_explicit(self):
"test PrefixWrapper with explicitly specified handler"
d1 = uh.PrefixWrapper("d1", ldap_md5, "{XXX}", "{MD5}")
#check base state
self.assertEqual(d1._wrapped_name, None)
self.assertIs(d1._wrapped_handler, ldap_md5)
self.assertIs(d1.wrapped, ldap_md5)
#replace w/ wrong handler, make sure doesn't reload w/ dummy
with dummy_handler_in_registry("ldap_md5") as dummy:
self.assertIs(d1.wrapped, ldap_md5)
def test_10_wrapped_attributes(self):
d1 = uh.PrefixWrapper("d1", "ldap_md5", "{XXX}", "{MD5}")
self.assertEqual(d1.name, "d1")
self.assertIs(d1.setting_kwds, ldap_md5.setting_kwds)
def test_11_wrapped_methods(self):
d1 = uh.PrefixWrapper("d1", "ldap_md5", "{XXX}", "{MD5}")
dph = "{XXX}X03MO1qnZdYdgyfeuILPmQ=="
lph = "{MD5}X03MO1qnZdYdgyfeuILPmQ=="
#genconfig
self.assertIs(d1.genconfig(), None)
#genhash
self.assertEqual(d1.genhash("password", None), dph)
self.assertEqual(d1.genhash("password", dph), dph)
self.assertRaises(ValueError, d1.genhash, "password", lph)
#encrypt
self.assertEqual(d1.encrypt("password"), dph)
#identify
self.assertTrue(d1.identify(dph))
self.assertFalse(d1.identify(lph))
#verify
self.assertRaises(ValueError, d1.verify, "password", lph)
self.assertTrue(d1.verify("password", dph))
#=========================================================
#sample algorithms - these serve as known quantities
# to test the unittests themselves, as well as other
# parts of passlib. they shouldn't be used as actual password schemes.
#=========================================================
class UnsaltedHash(uh.StaticHandler):
"test algorithm which lacks a salt"
name = "unsalted_test_hash"
_stub_config = "0" * 40
@classmethod
def identify(cls, hash):
return uh.identify_regexp(hash, re.compile(u"^[0-9a-f]{40}$"))
@classmethod
def genhash(cls, secret, hash):
if not cls.identify(hash):
raise ValueError("not a unsalted-example hash")
if isinstance(secret, unicode):
secret = secret.encode("utf-8")
data = b("boblious") + secret
return to_hash_str(hashlib.sha1(data).hexdigest())
class SaltedHash(uh.HasSalt, uh.GenericHandler):
"test algorithm with a salt"
name = "salted_test_hash"
setting_kwds = ("salt",)
min_salt_size = 2
max_salt_size = 4
checksum_size = 40
salt_chars = checksum_chars = uh.LC_HEX_CHARS
@classmethod
def identify(cls, hash):
return uh.identify_regexp(hash, re.compile(u"^@salt[0-9a-f]{42,44}$"))
@classmethod
def from_string(cls, hash):
if not cls.identify(hash):
raise ValueError("not a salted-example hash")
if isinstance(hash, bytes):
hash = hash.decode("ascii")
return cls(salt=hash[5:-40], checksum=hash[-40:], strict=True)
_stub_checksum = '0' * 40
def to_string(self):
hash = u"@salt%s%s" % (self.salt, self.checksum or self._stub_checksum)
return to_hash_str(hash)
def calc_checksum(self, secret):
if isinstance(secret, unicode):
secret = secret.encode("utf-8")
data = self.salt.encode("ascii") + secret + self.salt.encode("ascii")
return to_unicode(hashlib.sha1(data).hexdigest(), "latin-1")
#=========================================================
#test sample algorithms - really a self-test of HandlerCase
#=========================================================
#TODO: provide data samples for algorithms
# (positive knowns, negative knowns, invalid identify)
class UnsaltedHashTest(HandlerCase):
handler = UnsaltedHash
known_correct_hashes = [
("password", "61cfd32684c47de231f1f982c214e884133762c0"),
]
def test_bad_kwds(self):
if not jython_vm:
#FIXME: annoyingly, the object() constructor of Jython (as of 2.5.2)
# silently drops any extra kwds (old 2.4 behavior)
# instead of raising TypeError (new 2.5 behavior).
# we *could* use a custom base object to restore correct
# behavior, but that's a lot of effort for a non-critical
# border case. so just skipping this test instead...
self.assertRaises(TypeError, UnsaltedHash, salt='x')
self.assertRaises(ValueError, SaltedHash, checksum=SaltedHash._stub_checksum, salt=None, strict=True)
self.assertRaises(ValueError, SaltedHash, checksum=SaltedHash._stub_checksum, salt='xxx', strict=True)
self.assertRaises(TypeError, UnsaltedHash.genconfig, rounds=1)
class SaltedHashTest(HandlerCase):
handler = SaltedHash
known_correct_hashes = [
("password", '@salt77d71f8fe74f314dac946766c1ac4a2a58365482c0'),
(u'\u0399\u03c9\u03b1\u03bd\u03bd\u03b7\u03c2',
'@salt9f978a9bfe360d069b0c13f2afecd570447407fa7e48'),
]
#=========================================================
#EOF
#=========================================================
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