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GoogleDriveManagement/passlib/tests/test_context.py

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"""tests for passlib.context"""
#=============================================================================
# imports
#=============================================================================
# core
from __future__ import with_statement
from passlib.utils.compat import PY3
if PY3:
from configparser import NoSectionError
else:
from ConfigParser import NoSectionError
import hashlib
import logging; log = logging.getLogger(__name__)
import re
import os
import time
import warnings
import sys
# site
# pkg
from passlib import hash
from passlib.context import CryptContext, LazyCryptContext
from passlib.exc import PasslibConfigWarning
from passlib.utils import tick, to_bytes, to_unicode
from passlib.utils.compat import irange, u, unicode, str_to_uascii, PY2
import passlib.utils.handlers as uh
from passlib.tests.utils import TestCase, catch_warnings, set_file, TICK_RESOLUTION, quicksleep
from passlib.registry import (register_crypt_handler_path,
_has_crypt_handler as has_crypt_handler,
_unload_handler_name as unload_handler_name,
get_crypt_handler,
)
# local
#=============================================================================
# support
#=============================================================================
here = os.path.abspath(os.path.dirname(__file__))
def merge_dicts(first, *args, **kwds):
target = first.copy()
for arg in args:
target.update(arg)
if kwds:
target.update(kwds)
return target
#=============================================================================
#
#=============================================================================
class CryptContextTest(TestCase):
descriptionPrefix = "CryptContext"
# TODO: these unittests could really use a good cleanup
# and reorganizing, to ensure they're getting everything.
#===================================================================
# sample configurations used in tests
#===================================================================
#---------------------------------------------------------------
# sample 1 - typical configuration
#---------------------------------------------------------------
sample_1_schemes = ["des_crypt", "md5_crypt", "bsdi_crypt", "sha512_crypt"]
sample_1_handlers = [get_crypt_handler(name) for name in sample_1_schemes]
sample_1_dict = dict(
schemes = sample_1_schemes,
default = "md5_crypt",
all__vary_rounds = 0.1,
bsdi_crypt__max_rounds = 30000,
bsdi_crypt__default_rounds = 25000,
sha512_crypt__max_rounds = 50000,
sha512_crypt__min_rounds = 40000,
)
sample_1_resolved_dict = merge_dicts(sample_1_dict,
schemes = sample_1_handlers)
sample_1_unnormalized = u("""\
[passlib]
schemes = des_crypt, md5_crypt, bsdi_crypt, sha512_crypt
default = md5_crypt
; this is using %...
all__vary_rounds = 10%%
; this is using 'rounds' instead of 'default_rounds'
bsdi_crypt__rounds = 25000
bsdi_crypt__max_rounds = 30000
sha512_crypt__max_rounds = 50000
sha512_crypt__min_rounds = 40000
""")
sample_1_unicode = u("""\
[passlib]
schemes = des_crypt, md5_crypt, bsdi_crypt, sha512_crypt
default = md5_crypt
all__vary_rounds = 0.1
bsdi_crypt__default_rounds = 25000
bsdi_crypt__max_rounds = 30000
sha512_crypt__max_rounds = 50000
sha512_crypt__min_rounds = 40000
""")
#---------------------------------------------------------------
# sample 1 external files
#---------------------------------------------------------------
# sample 1 string with '\n' linesep
sample_1_path = os.path.join(here, "sample1.cfg")
# sample 1 with '\r\n' linesep
sample_1b_unicode = sample_1_unicode.replace(u("\n"), u("\r\n"))
sample_1b_path = os.path.join(here, "sample1b.cfg")
# sample 1 using UTF-16 and alt section
sample_1c_bytes = sample_1_unicode.replace(u("[passlib]"),
u("[mypolicy]")).encode("utf-16")
sample_1c_path = os.path.join(here, "sample1c.cfg")
# enable to regenerate sample files
if False:
set_file(sample_1_path, sample_1_unicode)
set_file(sample_1b_path, sample_1b_unicode)
set_file(sample_1c_path, sample_1c_bytes)
#---------------------------------------------------------------
# sample 2 & 12 - options patch
#---------------------------------------------------------------
sample_2_dict = dict(
# using this to test full replacement of existing options
bsdi_crypt__min_rounds = 29000,
bsdi_crypt__max_rounds = 35000,
bsdi_crypt__default_rounds = 31000,
# using this to test partial replacement of existing options
sha512_crypt__min_rounds=45000,
)
sample_2_unicode = """\
[passlib]
bsdi_crypt__min_rounds = 29000
bsdi_crypt__max_rounds = 35000
bsdi_crypt__default_rounds = 31000
sha512_crypt__min_rounds = 45000
"""
# sample 2 overlayed on top of sample 1
sample_12_dict = merge_dicts(sample_1_dict, sample_2_dict)
#---------------------------------------------------------------
# sample 3 & 123 - just changing default from sample 1
#---------------------------------------------------------------
sample_3_dict = dict(
default="sha512_crypt",
)
# sample 3 overlayed on 2 overlayed on 1
sample_123_dict = merge_dicts(sample_12_dict, sample_3_dict)
#---------------------------------------------------------------
# sample 4 - used by api tests
#---------------------------------------------------------------
sample_4_dict = dict(
schemes = [ "des_crypt", "md5_crypt", "phpass", "bsdi_crypt",
"sha256_crypt"],
deprecated = [ "des_crypt", ],
default = "sha256_crypt",
bsdi_crypt__max_rounds = 30,
bsdi_crypt__default_rounds = 25,
bsdi_crypt__vary_rounds = 0,
sha256_crypt__max_rounds = 3000,
sha256_crypt__min_rounds = 2000,
sha256_crypt__default_rounds = 3000,
phpass__ident = "H",
phpass__default_rounds = 7,
)
#===================================================================
# constructors
#===================================================================
def test_01_constructor(self):
"test class constructor"
# test blank constructor works correctly
ctx = CryptContext()
self.assertEqual(ctx.to_dict(), {})
# test sample 1 with scheme=names
ctx = CryptContext(**self.sample_1_dict)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 with scheme=handlers
ctx = CryptContext(**self.sample_1_resolved_dict)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 2: options w/o schemes
ctx = CryptContext(**self.sample_2_dict)
self.assertEqual(ctx.to_dict(), self.sample_2_dict)
# test sample 3: default only
ctx = CryptContext(**self.sample_3_dict)
self.assertEqual(ctx.to_dict(), self.sample_3_dict)
def test_02_from_string(self):
"test from_string() constructor"
# test sample 1 unicode
ctx = CryptContext.from_string(self.sample_1_unicode)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 with unnormalized inputs
ctx = CryptContext.from_string(self.sample_1_unnormalized)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 utf-8
ctx = CryptContext.from_string(self.sample_1_unicode.encode("utf-8"))
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 w/ '\r\n' linesep
ctx = CryptContext.from_string(self.sample_1b_unicode)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 using UTF-16 and alt section
ctx = CryptContext.from_string(self.sample_1c_bytes, section="mypolicy",
encoding="utf-16")
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test wrong type
self.assertRaises(TypeError, CryptContext.from_string, None)
# test missing section
self.assertRaises(NoSectionError, CryptContext.from_string,
self.sample_1_unicode, section="fakesection")
def test_03_from_path(self):
"test from_path() constructor"
# make sure sample files exist
if not os.path.exists(self.sample_1_path):
raise RuntimeError("can't find data file: %r" % self.sample_1_path)
# test sample 1
ctx = CryptContext.from_path(self.sample_1_path)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 w/ '\r\n' linesep
ctx = CryptContext.from_path(self.sample_1b_path)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test sample 1 encoding using UTF-16 and alt section
ctx = CryptContext.from_path(self.sample_1c_path, section="mypolicy",
encoding="utf-16")
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test missing file
self.assertRaises(EnvironmentError, CryptContext.from_path,
os.path.join(here, "sample1xxx.cfg"))
# test missing section
self.assertRaises(NoSectionError, CryptContext.from_path,
self.sample_1_path, section="fakesection")
def test_04_copy(self):
"test copy() method"
cc1 = CryptContext(**self.sample_1_dict)
# overlay sample 2 onto copy
cc2 = cc1.copy(**self.sample_2_dict)
self.assertEqual(cc1.to_dict(), self.sample_1_dict)
self.assertEqual(cc2.to_dict(), self.sample_12_dict)
# check that repeating overlay makes no change
cc2b = cc2.copy(**self.sample_2_dict)
self.assertEqual(cc1.to_dict(), self.sample_1_dict)
self.assertEqual(cc2b.to_dict(), self.sample_12_dict)
# overlay sample 3 on copy
cc3 = cc2.copy(**self.sample_3_dict)
self.assertEqual(cc3.to_dict(), self.sample_123_dict)
# test empty copy creates separate copy
cc4 = cc1.copy()
self.assertIsNot(cc4, cc1)
self.assertEqual(cc1.to_dict(), self.sample_1_dict)
self.assertEqual(cc4.to_dict(), self.sample_1_dict)
# ... and that modifying copy doesn't affect original
cc4.update(**self.sample_2_dict)
self.assertEqual(cc1.to_dict(), self.sample_1_dict)
self.assertEqual(cc4.to_dict(), self.sample_12_dict)
def test_09_repr(self):
"test repr()"
cc1 = CryptContext(**self.sample_1_dict)
self.assertRegex(repr(cc1), "^<CryptContext at 0x[0-9a-f]+>$")
#===================================================================
# modifiers
#===================================================================
def test_10_load(self):
"test load() / load_path() method"
# NOTE: load() is the workhorse that handles all policy parsing,
# compilation, and validation. most of it's features are tested
# elsewhere, since all the constructors and modifiers are just
# wrappers for it.
# source_type 'auto'
ctx = CryptContext()
# detect dict
ctx.load(self.sample_1_dict)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# detect unicode string
ctx.load(self.sample_1_unicode)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# detect bytes string
ctx.load(self.sample_1_unicode.encode("utf-8"))
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# anything else - TypeError
self.assertRaises(TypeError, ctx.load, None)
# NOTE: load_path() tested by from_path()
# NOTE: additional string tests done by from_string()
# update flag - tested by update() method tests
# encoding keyword - tested by from_string() & from_path()
# section keyword - tested by from_string() & from_path()
# test load empty
ctx = CryptContext(**self.sample_1_dict)
ctx.load({}, update=True)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# multiple loads should clear the state
ctx = CryptContext()
ctx.load(self.sample_1_dict)
ctx.load(self.sample_2_dict)
self.assertEqual(ctx.to_dict(), self.sample_2_dict)
def test_11_load_rollback(self):
"test load() errors restore old state"
# create initial context
cc = CryptContext(["des_crypt", "sha256_crypt"],
sha256_crypt__default_rounds=5000,
all__vary_rounds=0.1,
)
result = cc.to_string()
# do an update operation that should fail during parsing
# XXX: not sure what the right error type is here.
self.assertRaises(TypeError, cc.update, too__many__key__parts=True)
self.assertEqual(cc.to_string(), result)
# do an update operation that should fail during extraction
# FIXME: this isn't failing even in broken case, need to figure out
# way to ensure some keys come after this one.
self.assertRaises(KeyError, cc.update, fake_context_option=True)
self.assertEqual(cc.to_string(), result)
# do an update operation that should fail during compilation
self.assertRaises(ValueError, cc.update, sha256_crypt__min_rounds=10000)
self.assertEqual(cc.to_string(), result)
def test_12_update(self):
"test update() method"
# empty overlay
ctx = CryptContext(**self.sample_1_dict)
ctx.update()
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
# test basic overlay
ctx = CryptContext(**self.sample_1_dict)
ctx.update(**self.sample_2_dict)
self.assertEqual(ctx.to_dict(), self.sample_12_dict)
# ... and again
ctx.update(**self.sample_3_dict)
self.assertEqual(ctx.to_dict(), self.sample_123_dict)
# overlay w/ dict arg
ctx = CryptContext(**self.sample_1_dict)
ctx.update(self.sample_2_dict)
self.assertEqual(ctx.to_dict(), self.sample_12_dict)
# overlay w/ string
ctx = CryptContext(**self.sample_1_dict)
ctx.update(self.sample_2_unicode)
self.assertEqual(ctx.to_dict(), self.sample_12_dict)
# too many args
self.assertRaises(TypeError, ctx.update, {}, {})
self.assertRaises(TypeError, ctx.update, {}, schemes=['des_crypt'])
# wrong arg type
self.assertRaises(TypeError, ctx.update, None)
#===================================================================
# option parsing
#===================================================================
def test_20_options(self):
"test basic option parsing"
def parse(**kwds):
return CryptContext(**kwds).to_dict()
#
# common option parsing tests
#
# test keys with blank fields are rejected
# blank option
self.assertRaises(TypeError, CryptContext, __=0.1)
self.assertRaises(TypeError, CryptContext, default__scheme__='x')
# blank scheme
self.assertRaises(TypeError, CryptContext, __option='x')
self.assertRaises(TypeError, CryptContext, default____option='x')
# blank category
self.assertRaises(TypeError, CryptContext, __scheme__option='x')
# test keys with too many field are rejected
self.assertRaises(TypeError, CryptContext,
category__scheme__option__invalid = 30000)
# keys with mixed separators should be handled correctly.
# (testing actual data, not to_dict(), since re-render hid original bug)
self.assertRaises(KeyError, parse,
**{"admin.context__schemes":"md5_crypt"})
ctx = CryptContext(**{"schemes":"md5_crypt,des_crypt",
"admin.context__default":"des_crypt"})
self.assertEqual(ctx.default_scheme("admin"), "des_crypt")
#
# context option -specific tests
#
# test context option key parsing
result = dict(default="md5_crypt")
self.assertEqual(parse(default="md5_crypt"), result)
self.assertEqual(parse(context__default="md5_crypt"), result)
self.assertEqual(parse(default__context__default="md5_crypt"), result)
self.assertEqual(parse(**{"context.default":"md5_crypt"}), result)
self.assertEqual(parse(**{"default.context.default":"md5_crypt"}), result)
# test context option key parsing w/ category
result = dict(admin__context__default="md5_crypt")
self.assertEqual(parse(admin__context__default="md5_crypt"), result)
self.assertEqual(parse(**{"admin.context.default":"md5_crypt"}), result)
#
# hash option -specific tests
#
# test hash option key parsing
result = dict(all__vary_rounds=0.1)
self.assertEqual(parse(all__vary_rounds=0.1), result)
self.assertEqual(parse(default__all__vary_rounds=0.1), result)
self.assertEqual(parse(**{"all.vary_rounds":0.1}), result)
self.assertEqual(parse(**{"default.all.vary_rounds":0.1}), result)
# test hash option key parsing w/ category
result = dict(admin__all__vary_rounds=0.1)
self.assertEqual(parse(admin__all__vary_rounds=0.1), result)
self.assertEqual(parse(**{"admin.all.vary_rounds":0.1}), result)
# settings not allowed if not in hash.settings_kwds
ctx = CryptContext(["phpass", "md5_crypt"], phpass__ident="P")
self.assertRaises(KeyError, ctx.copy, md5_crypt__ident="P")
# hash options 'salt' and 'rounds' not allowed
self.assertRaises(KeyError, CryptContext, schemes=["des_crypt"],
des_crypt__salt="xx")
self.assertRaises(KeyError, CryptContext, schemes=["des_crypt"],
all__salt="xx")
def test_21_schemes(self):
"test 'schemes' context option parsing"
# schemes can be empty
cc = CryptContext(schemes=None)
self.assertEqual(cc.schemes(), ())
# schemes can be list of names
cc = CryptContext(schemes=["des_crypt", "md5_crypt"])
self.assertEqual(cc.schemes(), ("des_crypt", "md5_crypt"))
# schemes can be comma-sep string
cc = CryptContext(schemes=" des_crypt, md5_crypt, ")
self.assertEqual(cc.schemes(), ("des_crypt", "md5_crypt"))
# schemes can be list of handlers
cc = CryptContext(schemes=[hash.des_crypt, hash.md5_crypt])
self.assertEqual(cc.schemes(), ("des_crypt", "md5_crypt"))
# scheme must be name or handler
self.assertRaises(TypeError, CryptContext, schemes=[uh.StaticHandler])
# handlers must have a name
class nameless(uh.StaticHandler):
name = None
self.assertRaises(ValueError, CryptContext, schemes=[nameless])
# names must be unique
class dummy_1(uh.StaticHandler):
name = 'dummy_1'
self.assertRaises(KeyError, CryptContext, schemes=[dummy_1, dummy_1])
# schemes not allowed per-category
self.assertRaises(KeyError, CryptContext,
admin__context__schemes=["md5_crypt"])
def test_22_deprecated(self):
"test 'deprecated' context option parsing"
def getdep(ctx, category=None):
return [name for name in ctx.schemes()
if ctx._is_deprecated_scheme(name, category)]
# no schemes - all deprecated values allowed
cc = CryptContext(deprecated=["md5_crypt"])
cc.update(schemes=["md5_crypt", "des_crypt"])
self.assertEqual(getdep(cc),["md5_crypt"])
# deprecated values allowed if subset of schemes
cc = CryptContext(deprecated=["md5_crypt"], schemes=["md5_crypt", "des_crypt"])
self.assertEqual(getdep(cc), ["md5_crypt"])
# can be handler
# XXX: allow handlers in deprecated list? not for now.
self.assertRaises(TypeError, CryptContext, deprecated=[hash.md5_crypt],
schemes=["md5_crypt", "des_crypt"])
## cc = CryptContext(deprecated=[hash.md5_crypt], schemes=["md5_crypt", "des_crypt"])
## self.assertEqual(getdep(cc), ["md5_crypt"])
# comma sep list
cc = CryptContext(deprecated="md5_crypt,des_crypt", schemes=["md5_crypt", "des_crypt", "sha256_crypt"])
self.assertEqual(getdep(cc), ["md5_crypt", "des_crypt"])
# values outside of schemes not allowed
self.assertRaises(KeyError, CryptContext, schemes=['des_crypt'],
deprecated=['md5_crypt'])
# deprecating ALL schemes should cause ValueError
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt'],
deprecated=['des_crypt'])
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt', 'md5_crypt'],
admin__context__deprecated=['des_crypt', 'md5_crypt'])
# deprecating explicit default scheme should cause ValueError
# ... default listed as deprecated
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt', 'md5_crypt'],
default="md5_crypt",
deprecated="md5_crypt")
# ... global default deprecated per-category
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt', 'md5_crypt'],
default="md5_crypt",
admin__context__deprecated="md5_crypt")
# ... category default deprecated globally
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt', 'md5_crypt'],
admin__context__default="md5_crypt",
deprecated="md5_crypt")
# ... category default deprecated in category
self.assertRaises(ValueError, CryptContext,
schemes=['des_crypt', 'md5_crypt'],
admin__context__default="md5_crypt",
admin__context__deprecated="md5_crypt")
# category deplist should shadow default deplist
CryptContext(
schemes=['des_crypt', 'md5_crypt'],
deprecated="md5_crypt",
admin__context__default="md5_crypt",
admin__context__deprecated=[])
# wrong type
self.assertRaises(TypeError, CryptContext, deprecated=123)
# deprecated per-category
cc = CryptContext(deprecated=["md5_crypt"],
schemes=["md5_crypt", "des_crypt"],
admin__context__deprecated=["des_crypt"],
)
self.assertEqual(getdep(cc), ["md5_crypt"])
self.assertEqual(getdep(cc, "user"), ["md5_crypt"])
self.assertEqual(getdep(cc, "admin"), ["des_crypt"])
# blank per-category deprecated list, shadowing default list
cc = CryptContext(deprecated=["md5_crypt"],
schemes=["md5_crypt", "des_crypt"],
admin__context__deprecated=[],
)
self.assertEqual(getdep(cc), ["md5_crypt"])
self.assertEqual(getdep(cc, "user"), ["md5_crypt"])
self.assertEqual(getdep(cc, "admin"), [])
def test_23_default(self):
"test 'default' context option parsing"
# anything allowed if no schemes
self.assertEqual(CryptContext(default="md5_crypt").to_dict(),
dict(default="md5_crypt"))
# default allowed if in scheme list
ctx = CryptContext(default="md5_crypt", schemes=["des_crypt", "md5_crypt"])
self.assertEqual(ctx.default_scheme(), "md5_crypt")
# default can be handler
# XXX: sure we want to allow this ? maybe deprecate in future.
ctx = CryptContext(default=hash.md5_crypt, schemes=["des_crypt", "md5_crypt"])
self.assertEqual(ctx.default_scheme(), "md5_crypt")
# implicit default should be first non-deprecated scheme
ctx = CryptContext(schemes=["des_crypt", "md5_crypt"])
self.assertEqual(ctx.default_scheme(), "des_crypt")
ctx.update(deprecated="des_crypt")
self.assertEqual(ctx.default_scheme(), "md5_crypt")
# error if not in scheme list
self.assertRaises(KeyError, CryptContext, schemes=['des_crypt'],
default='md5_crypt')
# wrong type
self.assertRaises(TypeError, CryptContext, default=1)
# per-category
ctx = CryptContext(default="des_crypt",
schemes=["des_crypt", "md5_crypt"],
admin__context__default="md5_crypt")
self.assertEqual(ctx.default_scheme(), "des_crypt")
self.assertEqual(ctx.default_scheme("user"), "des_crypt")
self.assertEqual(ctx.default_scheme("admin"), "md5_crypt")
def test_24_vary_rounds(self):
"test 'vary_rounds' hash option parsing"
def parse(v):
return CryptContext(all__vary_rounds=v).to_dict()['all__vary_rounds']
# floats should be preserved
self.assertEqual(parse(0.1), 0.1)
self.assertEqual(parse('0.1'), 0.1)
# 'xx%' should be converted to float
self.assertEqual(parse('10%'), 0.1)
# ints should be preserved
self.assertEqual(parse(1000), 1000)
self.assertEqual(parse('1000'), 1000)
#===================================================================
# inspection & serialization
#===================================================================
def test_30_schemes(self):
"test schemes() method"
# NOTE: also checked under test_21
# test empty
ctx = CryptContext()
self.assertEqual(ctx.schemes(), ())
self.assertEqual(ctx.schemes(resolve=True), ())
# test sample 1
ctx = CryptContext(**self.sample_1_dict)
self.assertEqual(ctx.schemes(), tuple(self.sample_1_schemes))
self.assertEqual(ctx.schemes(resolve=True), tuple(self.sample_1_handlers))
# test sample 2
ctx = CryptContext(**self.sample_2_dict)
self.assertEqual(ctx.schemes(), ())
def test_31_default_scheme(self):
"test default_scheme() method"
# NOTE: also checked under test_23
# test empty
ctx = CryptContext()
self.assertRaises(KeyError, ctx.default_scheme)
# test sample 1
ctx = CryptContext(**self.sample_1_dict)
self.assertEqual(ctx.default_scheme(), "md5_crypt")
self.assertEqual(ctx.default_scheme(resolve=True), hash.md5_crypt)
# test sample 2
ctx = CryptContext(**self.sample_2_dict)
self.assertRaises(KeyError, ctx.default_scheme)
# test defaults to first in scheme
ctx = CryptContext(schemes=self.sample_1_schemes)
self.assertEqual(ctx.default_scheme(), "des_crypt")
# categories tested under test_23
def test_32_handler(self):
"test handler() method"
# default for empty
ctx = CryptContext()
self.assertRaises(KeyError, ctx.handler)
self.assertRaises(KeyError, ctx.handler, "md5_crypt")
# default for sample 1
ctx = CryptContext(**self.sample_1_dict)
self.assertEqual(ctx.handler(), hash.md5_crypt)
# by name
self.assertEqual(ctx.handler("des_crypt"), hash.des_crypt)
# name not in schemes
self.assertRaises(KeyError, ctx.handler, "mysql323")
# check handler() honors category default
ctx = CryptContext("sha256_crypt,md5_crypt", admin__context__default="md5_crypt")
self.assertEqual(ctx.handler(), hash.sha256_crypt)
self.assertEqual(ctx.handler(category="staff"), hash.sha256_crypt)
self.assertEqual(ctx.handler(category="admin"), hash.md5_crypt)
# test unicode category strings are accepted under py2
if PY2:
self.assertEqual(ctx.handler(category=u("staff")), hash.sha256_crypt)
self.assertEqual(ctx.handler(category=u("admin")), hash.md5_crypt)
def test_33_options(self):
"test internal _get_record_options() method"
def options(ctx, scheme, category=None):
return ctx._config._get_record_options_with_flag(scheme, category)[0]
# this checks that (3 schemes, 3 categories) inherit options correctly.
# the 'user' category is not present in the options.
cc4 = CryptContext(
schemes = [ "sha512_crypt", "des_crypt", "bsdi_crypt"],
deprecated = ["sha512_crypt", "des_crypt"],
all__vary_rounds = 0.1,
bsdi_crypt__vary_rounds=0.2,
sha512_crypt__max_rounds = 20000,
admin__context__deprecated = [ "des_crypt", "bsdi_crypt" ],
admin__all__vary_rounds = 0.05,
admin__bsdi_crypt__vary_rounds=0.3,
admin__sha512_crypt__max_rounds = 40000,
)
self.assertEqual(cc4._config.categories, ("admin",))
#
# sha512_crypt
#
self.assertEqual(options(cc4, "sha512_crypt"), dict(
deprecated=True,
vary_rounds=0.1, # inherited from all__
max_rounds=20000,
))
self.assertEqual(options(cc4, "sha512_crypt", "user"), dict(
deprecated=True, # unconfigured category inherits from default
vary_rounds=0.1,
max_rounds=20000,
))
self.assertEqual(options(cc4, "sha512_crypt", "admin"), dict(
# NOT deprecated - context option overridden per-category
vary_rounds=0.05, # global overridden per-cateogry
max_rounds=40000, # overridden per-category
))
#
# des_crypt
#
self.assertEqual(options(cc4, "des_crypt"), dict(
deprecated=True,
vary_rounds=0.1,
))
self.assertEqual(options(cc4, "des_crypt", "user"), dict(
deprecated=True, # unconfigured category inherits from default
vary_rounds=0.1,
))
self.assertEqual(options(cc4, "des_crypt", "admin"), dict(
deprecated=True, # unchanged though overidden
vary_rounds=0.05, # global overridden per-cateogry
))
#
# bsdi_crypt
#
self.assertEqual(options(cc4, "bsdi_crypt"), dict(
vary_rounds=0.2, # overridden from all__vary_rounds
))
self.assertEqual(options(cc4, "bsdi_crypt", "user"), dict(
vary_rounds=0.2, # unconfigured category inherits from default
))
self.assertEqual(options(cc4, "bsdi_crypt", "admin"), dict(
vary_rounds=0.3,
deprecated=True, # deprecation set per-category
))
def test_34_to_dict(self):
"test to_dict() method"
# NOTE: this is tested all throughout this test case.
ctx = CryptContext(**self.sample_1_dict)
self.assertEqual(ctx.to_dict(), self.sample_1_dict)
self.assertEqual(ctx.to_dict(resolve=True), self.sample_1_resolved_dict)
def test_35_to_string(self):
"test to_string() method"
# create ctx and serialize
ctx = CryptContext(**self.sample_1_dict)
dump = ctx.to_string()
# check ctx->string returns canonical format.
# NOTE: ConfigParser for PY26 and earlier didn't use OrderedDict,
# so to_string() won't get order correct.
# so we skip this test.
import sys
if sys.version_info >= (2,7):
self.assertEqual(dump, self.sample_1_unicode)
# check ctx->string->ctx->dict returns original
ctx2 = CryptContext.from_string(dump)
self.assertEqual(ctx2.to_dict(), self.sample_1_dict)
# test section kwd is honored
other = ctx.to_string(section="password-security")
self.assertEqual(other, dump.replace("[passlib]","[password-security]"))
# test unmanaged handler warning
from passlib import hash
from passlib.tests.test_utils_handlers import UnsaltedHash
ctx3 = CryptContext([UnsaltedHash, "md5_crypt"])
dump = ctx3.to_string()
self.assertRegex(dump, r"# NOTE: the 'unsalted_test_hash' handler\(s\)"
r" are not registered with Passlib")
#===================================================================
# password hash api
#===================================================================
nonstring_vectors = [
(None, {}),
(None, {"scheme": "des_crypt"}),
(1, {}),
((), {}),
]
def test_40_basic(self):
"test basic encrypt/identify/verify functionality"
handlers = [hash.md5_crypt, hash.des_crypt, hash.bsdi_crypt]
cc = CryptContext(handlers, bsdi_crypt__default_rounds=5)
# run through handlers
for crypt in handlers:
h = cc.encrypt("test", scheme=crypt.name)
self.assertEqual(cc.identify(h), crypt.name)
self.assertEqual(cc.identify(h, resolve=True), crypt)
self.assertTrue(cc.verify('test', h))
self.assertFalse(cc.verify('notest', h))
# test default
h = cc.encrypt("test")
self.assertEqual(cc.identify(h), "md5_crypt")
# test genhash
h = cc.genhash('secret', cc.genconfig())
self.assertEqual(cc.identify(h), 'md5_crypt')
h = cc.genhash('secret', cc.genconfig(), scheme='md5_crypt')
self.assertEqual(cc.identify(h), 'md5_crypt')
self.assertRaises(ValueError, cc.genhash, 'secret', cc.genconfig(), scheme="des_crypt")
def test_41_genconfig(self):
"test genconfig() method"
cc = CryptContext(schemes=["md5_crypt", "phpass"],
phpass__ident="H",
phpass__default_rounds=7,
admin__phpass__ident="P",
)
# uses default scheme
self.assertTrue(cc.genconfig().startswith("$1$"))
# override scheme
self.assertTrue(cc.genconfig(scheme="phpass").startswith("$H$5"))
# category override
self.assertTrue(cc.genconfig(scheme="phpass", category="admin").startswith("$P$5"))
self.assertTrue(cc.genconfig(scheme="phpass", category="staff").startswith("$H$5"))
# override scheme & custom settings
self.assertEqual(
cc.genconfig(scheme="phpass", salt='.'*8, rounds=8, ident='P'),
'$P$6........',
)
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# test unicode category strings are accepted under py2
# this tests basic _get_record() used by encrypt/genhash/verify.
# we have to omit scheme=xxx so codepath is tested fully
if PY2:
c2 = cc.copy(default="phpass")
self.assertTrue(c2.genconfig(category=u("admin")).startswith("$P$5"))
self.assertTrue(c2.genconfig(category=u("staff")).startswith("$H$5"))
# throws error without schemes
self.assertRaises(KeyError, CryptContext().genconfig)
self.assertRaises(KeyError, CryptContext().genconfig, scheme='md5_crypt')
# bad scheme values
self.assertRaises(KeyError, cc.genconfig, scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.genconfig, scheme=1, category='staff')
self.assertRaises(TypeError, cc.genconfig, scheme=1)
# bad category values
self.assertRaises(TypeError, cc.genconfig, category=1)
def test_42_genhash(self):
"test genhash() method"
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# rejects non-string secrets
cc = CryptContext(["des_crypt"])
hash = cc.encrypt('stub')
for secret, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.genhash, secret, hash, **kwds)
# rejects non-string hashes
cc = CryptContext(["des_crypt"])
for hash, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.genhash, 'secret', hash, **kwds)
# .. but should accept None if default scheme lacks config string
cc = CryptContext(["mysql323"])
self.assertIsInstance(cc.genhash("stub", None), str)
# throws error without schemes
self.assertRaises(KeyError, CryptContext().genhash, 'secret', 'hash')
# bad scheme values
self.assertRaises(KeyError, cc.genhash, 'secret', hash, scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.genhash, 'secret', hash, scheme=1)
# bad category values
self.assertRaises(TypeError, cc.genconfig, 'secret', hash, category=1)
def test_43_encrypt(self):
"test encrypt() method"
cc = CryptContext(**self.sample_4_dict)
# hash specific settings
self.assertEqual(
cc.encrypt("password", scheme="phpass", salt='.'*8),
'$H$5........De04R5Egz0aq8Tf.1eVhY/',
)
self.assertEqual(
cc.encrypt("password", scheme="phpass", salt='.'*8, ident="P"),
'$P$5........De04R5Egz0aq8Tf.1eVhY/',
)
# NOTE: more thorough job of rounds limits done below.
# min rounds
with self.assertWarningList(PasslibConfigWarning):
self.assertEqual(
cc.encrypt("password", rounds=1999, salt="nacl"),
'$5$rounds=2000$nacl$9/lTZ5nrfPuz8vphznnmHuDGFuvjSNvOEDsGmGfsS97',
)
with self.assertWarningList([]):
self.assertEqual(
cc.encrypt("password", rounds=2001, salt="nacl"),
'$5$rounds=2001$nacl$8PdeoPL4aXQnJ0woHhqgIw/efyfCKC2WHneOpnvF.31'
)
# NOTE: max rounds, etc tested in genconfig()
# make default > max throws error if attempted
self.assertRaises(ValueError, cc.copy,
sha256_crypt__default_rounds=4000)
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# rejects non-string secrets
cc = CryptContext(["des_crypt"])
for secret, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.encrypt, secret, **kwds)
# throws error without schemes
self.assertRaises(KeyError, CryptContext().encrypt, 'secret')
# bad scheme values
self.assertRaises(KeyError, cc.encrypt, 'secret', scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.encrypt, 'secret', scheme=1)
# bad category values
self.assertRaises(TypeError, cc.encrypt, 'secret', category=1)
def test_44_identify(self):
"test identify() border cases"
handlers = ["md5_crypt", "des_crypt", "bsdi_crypt"]
cc = CryptContext(handlers, bsdi_crypt__default_rounds=5)
# check unknown hash
self.assertEqual(cc.identify('$9$232323123$1287319827'), None)
self.assertRaises(ValueError, cc.identify, '$9$232323123$1287319827', required=True)
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# rejects non-string hashes
cc = CryptContext(["des_crypt"])
for hash, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.identify, hash, **kwds)
# throws error without schemes
cc = CryptContext()
self.assertIs(cc.identify('hash'), None)
self.assertRaises(KeyError, cc.identify, 'hash', required=True)
# bad category values
self.assertRaises(TypeError, cc.identify, None, category=1)
def test_45_verify(self):
"test verify() scheme kwd"
handlers = ["md5_crypt", "des_crypt", "bsdi_crypt"]
cc = CryptContext(handlers, bsdi_crypt__default_rounds=5)
h = hash.md5_crypt.encrypt("test")
# check base verify
self.assertTrue(cc.verify("test", h))
self.assertTrue(not cc.verify("notest", h))
# check verify using right alg
self.assertTrue(cc.verify('test', h, scheme='md5_crypt'))
self.assertTrue(not cc.verify('notest', h, scheme='md5_crypt'))
# check verify using wrong alg
self.assertRaises(ValueError, cc.verify, 'test', h, scheme='bsdi_crypt')
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# unknown hash should throw error
self.assertRaises(ValueError, cc.verify, 'stub', '$6$232323123$1287319827')
# rejects non-string secrets
cc = CryptContext(["des_crypt"])
h = refhash = cc.encrypt('stub')
for secret, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.verify, secret, h, **kwds)
# rejects non-string hashes
cc = CryptContext(["des_crypt"])
for h, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.verify, 'secret', h, **kwds)
# throws error without schemes
self.assertRaises(KeyError, CryptContext().verify, 'secret', 'hash')
# bad scheme values
self.assertRaises(KeyError, cc.verify, 'secret', refhash, scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.verify, 'secret', refhash, scheme=1)
# bad category values
self.assertRaises(TypeError, cc.verify, 'secret', refhash, category=1)
def test_46_needs_update(self):
"test needs_update() method"
cc = CryptContext(**self.sample_4_dict)
# check deprecated scheme
self.assertTrue(cc.needs_update('9XXD4trGYeGJA'))
self.assertFalse(cc.needs_update('$1$J8HC2RCr$HcmM.7NxB2weSvlw2FgzU0'))
# check min rounds
self.assertTrue(cc.needs_update('$5$rounds=1999$jD81UCoo.zI.UETs$Y7qSTQ6mTiU9qZB4fRr43wRgQq4V.5AAf7F97Pzxey/'))
self.assertFalse(cc.needs_update('$5$rounds=2000$228SSRje04cnNCaQ$YGV4RYu.5sNiBvorQDlO0WWQjyJVGKBcJXz3OtyQ2u8'))
# check max rounds
self.assertFalse(cc.needs_update('$5$rounds=3000$fS9iazEwTKi7QPW4$VasgBC8FqlOvD7x2HhABaMXCTh9jwHclPA9j5YQdns.'))
self.assertTrue(cc.needs_update('$5$rounds=3001$QlFHHifXvpFX4PLs$/0ekt7lSs/lOikSerQ0M/1porEHxYq7W/2hdFpxA3fA'))
#--------------------------------------------------------------
# test _bind_needs_update() framework
#--------------------------------------------------------------
bind_state = []
check_state = []
class dummy(uh.StaticHandler):
name = 'dummy'
_hash_prefix = '@'
@classmethod
def _bind_needs_update(cls, **settings):
bind_state.append(settings)
return cls._needs_update
@classmethod
def _needs_update(cls, hash, secret):
check_state.append((hash,secret))
return secret == "nu"
def _calc_checksum(self, secret):
from hashlib import md5
if isinstance(secret, unicode):
secret = secret.encode("utf-8")
return str_to_uascii(md5(secret).hexdigest())
# creating context should call bind function w/ settings
ctx = CryptContext([dummy])
self.assertEqual(bind_state, [{}])
# calling needs_update should query callback
hash = refhash = dummy.encrypt("test")
self.assertFalse(ctx.needs_update(hash))
self.assertEqual(check_state, [(hash,None)])
del check_state[:]
# now with a password
self.assertFalse(ctx.needs_update(hash, secret='bob'))
self.assertEqual(check_state, [(hash,'bob')])
del check_state[:]
# now when it returns True
self.assertTrue(ctx.needs_update(hash, secret='nu'))
self.assertEqual(check_state, [(hash,'nu')])
del check_state[:]
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# rejects non-string hashes
cc = CryptContext(["des_crypt"])
for hash, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.needs_update, hash, **kwds)
# throws error without schemes
self.assertRaises(KeyError, CryptContext().needs_update, 'hash')
# bad scheme values
self.assertRaises(KeyError, cc.needs_update, refhash, scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.needs_update, refhash, scheme=1)
# bad category values
self.assertRaises(TypeError, cc.needs_update, refhash, category=1)
def test_47_verify_and_update(self):
"test verify_and_update()"
cc = CryptContext(**self.sample_4_dict)
# create some hashes
h1 = cc.encrypt("password", scheme="des_crypt")
h2 = cc.encrypt("password", scheme="sha256_crypt")
# check bad password, deprecated hash
ok, new_hash = cc.verify_and_update("wrongpass", h1)
self.assertFalse(ok)
self.assertIs(new_hash, None)
# check bad password, good hash
ok, new_hash = cc.verify_and_update("wrongpass", h2)
self.assertFalse(ok)
self.assertIs(new_hash, None)
# check right password, deprecated hash
ok, new_hash = cc.verify_and_update("password", h1)
self.assertTrue(ok)
self.assertTrue(cc.identify(new_hash), "sha256_crypt")
# check right password, good hash
ok, new_hash = cc.verify_and_update("password", h2)
self.assertTrue(ok)
self.assertIs(new_hash, None)
#--------------------------------------------------------------
# border cases
#--------------------------------------------------------------
# rejects non-string secrets
cc = CryptContext(["des_crypt"])
hash = refhash = cc.encrypt('stub')
for secret, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.verify_and_update, secret, hash, **kwds)
# rejects non-string hashes
cc = CryptContext(["des_crypt"])
for hash, kwds in self.nonstring_vectors:
self.assertRaises(TypeError, cc.verify_and_update, 'secret', hash, **kwds)
# throws error without schemes
self.assertRaises(KeyError, CryptContext().verify_and_update, 'secret', 'hash')
# bad scheme values
self.assertRaises(KeyError, cc.verify_and_update, 'secret', refhash, scheme="fake") # XXX: should this be ValueError?
self.assertRaises(TypeError, cc.verify_and_update, 'secret', refhash, scheme=1)
# bad category values
self.assertRaises(TypeError, cc.verify_and_update, 'secret', refhash, category=1)
#===================================================================
# rounds options
#===================================================================
# NOTE: the follow tests check how _CryptRecord handles
# the min/max/default/vary_rounds options, via the output of
# genconfig(). it's assumed encrypt() takes the same codepath.
def test_50_rounds_limits(self):
"test rounds limits"
cc = CryptContext(schemes=["sha256_crypt"],
all__min_rounds=2000,
all__max_rounds=3000,
all__default_rounds=2500,
)
#--------------------------------------------------
# min_rounds
#--------------------------------------------------
# set below handler minimum
with self.assertWarningList([PasslibConfigWarning]*2):
c2 = cc.copy(all__min_rounds=500, all__max_rounds=None,
all__default_rounds=500)
self.assertEqual(c2.genconfig(salt="nacl"), "$5$rounds=1000$nacl$")
# below policy minimum
with self.assertWarningList(PasslibConfigWarning):
self.assertEqual(
cc.genconfig(rounds=1999, salt="nacl"),
'$5$rounds=2000$nacl$',
)
# equal to policy minimum
self.assertEqual(
cc.genconfig(rounds=2000, salt="nacl"),
'$5$rounds=2000$nacl$',
)
# above policy minimum
self.assertEqual(
cc.genconfig(rounds=2001, salt="nacl"),
'$5$rounds=2001$nacl$'
)
#--------------------------------------------------
# max rounds
#--------------------------------------------------
# set above handler max
with self.assertWarningList([PasslibConfigWarning]*2):
c2 = cc.copy(all__max_rounds=int(1e9)+500, all__min_rounds=None,
all__default_rounds=int(1e9)+500)
self.assertEqual(c2.genconfig(salt="nacl"),
"$5$rounds=999999999$nacl$")
# above policy max
with self.assertWarningList(PasslibConfigWarning):
self.assertEqual(
cc.genconfig(rounds=3001, salt="nacl"),
'$5$rounds=3000$nacl$'
)
# equal policy max
self.assertEqual(
cc.genconfig(rounds=3000, salt="nacl"),
'$5$rounds=3000$nacl$'
)
# below policy max
self.assertEqual(
cc.genconfig(rounds=2999, salt="nacl"),
'$5$rounds=2999$nacl$',
)
#--------------------------------------------------
# default_rounds
#--------------------------------------------------
# explicit default rounds
self.assertEqual(cc.genconfig(salt="nacl"), '$5$rounds=2500$nacl$')
# fallback default rounds - use handler's
df = hash.sha256_crypt.default_rounds
c2 = cc.copy(all__default_rounds=None, all__max_rounds=df<<1)
self.assertEqual(c2.genconfig(salt="nacl"),
'$5$rounds=%d$nacl$' % df)
# fallback default rounds - use handler's, but clipped to max rounds
c2 = cc.copy(all__default_rounds=None, all__max_rounds=3000)
self.assertEqual(c2.genconfig(salt="nacl"), '$5$rounds=3000$nacl$')
# TODO: test default falls back to mx / mn if handler has no default.
# default rounds - out of bounds
self.assertRaises(ValueError, cc.copy, all__default_rounds=1999)
cc.copy(all__default_rounds=2000)
cc.copy(all__default_rounds=3000)
self.assertRaises(ValueError, cc.copy, all__default_rounds=3001)
#--------------------------------------------------
# border cases
#--------------------------------------------------
# invalid min/max bounds
c2 = CryptContext(schemes=["sha256_crypt"])
self.assertRaises(ValueError, c2.copy, all__min_rounds=-1)
self.assertRaises(ValueError, c2.copy, all__max_rounds=-1)
self.assertRaises(ValueError, c2.copy, all__min_rounds=2000,
all__max_rounds=1999)
# test bad values
self.assertRaises(ValueError, CryptContext, all__min_rounds='x')
self.assertRaises(ValueError, CryptContext, all__max_rounds='x')
self.assertRaises(ValueError, CryptContext, all__vary_rounds='x')
self.assertRaises(ValueError, CryptContext, all__default_rounds='x')
# test bad types rejected
bad = NotImplemented
self.assertRaises(TypeError, CryptContext, "sha256_crypt", all__min_rounds=bad)
self.assertRaises(TypeError, CryptContext, "sha256_crypt", all__max_rounds=bad)
self.assertRaises(TypeError, CryptContext, "sha256_crypt", all__vary_rounds=bad)
self.assertRaises(TypeError, CryptContext, "sha256_crypt", all__default_rounds=bad)
def test_51_linear_vary_rounds(self):
"test linear vary rounds"
cc = CryptContext(schemes=["sha256_crypt"],
all__min_rounds=1995,
all__max_rounds=2005,
all__default_rounds=2000,
)
# test negative
self.assertRaises(ValueError, cc.copy, all__vary_rounds=-1)
self.assertRaises(ValueError, cc.copy, all__vary_rounds="-1%")
self.assertRaises(ValueError, cc.copy, all__vary_rounds="101%")
# test static
c2 = cc.copy(all__vary_rounds=0)
self.assert_rounds_range(c2, "sha256_crypt", 2000, 2000)
c2 = cc.copy(all__vary_rounds="0%")
self.assert_rounds_range(c2, "sha256_crypt", 2000, 2000)
# test absolute
c2 = cc.copy(all__vary_rounds=1)
self.assert_rounds_range(c2, "sha256_crypt", 1999, 2001)
c2 = cc.copy(all__vary_rounds=100)
self.assert_rounds_range(c2, "sha256_crypt", 1995, 2005)
# test relative
c2 = cc.copy(all__vary_rounds="0.1%")
self.assert_rounds_range(c2, "sha256_crypt", 1998, 2002)
c2 = cc.copy(all__vary_rounds="100%")
self.assert_rounds_range(c2, "sha256_crypt", 1995, 2005)
def test_52_log2_vary_rounds(self):
"test log2 vary rounds"
cc = CryptContext(schemes=["bcrypt"],
all__min_rounds=15,
all__max_rounds=25,
all__default_rounds=20,
)
# test negative
self.assertRaises(ValueError, cc.copy, all__vary_rounds=-1)
self.assertRaises(ValueError, cc.copy, all__vary_rounds="-1%")
self.assertRaises(ValueError, cc.copy, all__vary_rounds="101%")
# test static
c2 = cc.copy(all__vary_rounds=0)
self.assert_rounds_range(c2, "bcrypt", 20, 20)
c2 = cc.copy(all__vary_rounds="0%")
self.assert_rounds_range(c2, "bcrypt", 20, 20)
# test absolute
c2 = cc.copy(all__vary_rounds=1)
self.assert_rounds_range(c2, "bcrypt", 19, 21)
c2 = cc.copy(all__vary_rounds=100)
self.assert_rounds_range(c2, "bcrypt", 15, 25)
# test relative - should shift over at 50% mark
c2 = cc.copy(all__vary_rounds="1%")
self.assert_rounds_range(c2, "bcrypt", 20, 20)
c2 = cc.copy(all__vary_rounds="49%")
self.assert_rounds_range(c2, "bcrypt", 20, 20)
c2 = cc.copy(all__vary_rounds="50%")
self.assert_rounds_range(c2, "bcrypt", 19, 20)
c2 = cc.copy(all__vary_rounds="100%")
self.assert_rounds_range(c2, "bcrypt", 15, 21)
def assert_rounds_range(self, context, scheme, lower, upper):
"helper to check vary_rounds covers specified range"
# NOTE: this runs enough times the min and max *should* be hit,
# though there's a faint chance it will randomly fail.
handler = context.handler(scheme)
salt = handler.default_salt_chars[0:1] * handler.max_salt_size
seen = set()
for i in irange(300):
h = context.genconfig(scheme, salt=salt)
r = handler.from_string(h).rounds
seen.add(r)
self.assertEqual(min(seen), lower, "vary_rounds had wrong lower limit:")
self.assertEqual(max(seen), upper, "vary_rounds had wrong upper limit:")
#===================================================================
# feature tests
#===================================================================
def test_60_min_verify_time(self):
"test verify() honors min_verify_time"
delta = .05
if TICK_RESOLUTION >= delta/10:
raise self.skipTest("timer not accurate enough")
min_delay = 2*delta
min_verify_time = 5*delta
max_delay = 8*delta
class TimedHash(uh.StaticHandler):
"psuedo hash that takes specified amount of time"
name = "timed_hash"
delay = 0
@classmethod
def identify(cls, hash):
return True
def _calc_checksum(self, secret):
quicksleep(self.delay)
return to_unicode(secret + 'x')
# check mvt issues a warning, and then filter for remainder of test
with self.assertWarningList(["'min_verify_time' is deprecated"]*2):
cc = CryptContext([TimedHash], min_verify_time=min_verify_time,
admin__context__min_verify_time=min_verify_time*2)
warnings.filterwarnings("ignore", "'min_verify_time' is deprecated")
def timecall(func, *args, **kwds):
start = tick()
result = func(*args, **kwds)
return tick()-start, result
# verify genhash delay works
TimedHash.delay = min_delay
elapsed, result = timecall(TimedHash.genhash, 'stub', None)
self.assertEqual(result, 'stubx')
self.assertAlmostEqual(elapsed, min_delay, delta=delta)
# ensure min verify time is honored
# correct password
elapsed, result = timecall(cc.verify, "stub", "stubx")
self.assertTrue(result)
self.assertAlmostEqual(elapsed, min_delay, delta=delta)
# incorrect password
elapsed, result = timecall(cc.verify, "blob", "stubx")
self.assertFalse(result)
self.assertAlmostEqual(elapsed, min_verify_time, delta=delta)
# incorrect password w/ special category setting
elapsed, result = timecall(cc.verify, "blob", "stubx", category="admin")
self.assertFalse(result)
self.assertAlmostEqual(elapsed, min_verify_time*2, delta=delta)
# ensure taking longer emits a warning.
TimedHash.delay = max_delay
with self.assertWarningList(".*verify exceeded min_verify_time"):
elapsed, result = timecall(cc.verify, "blob", "stubx")
self.assertFalse(result)
self.assertAlmostEqual(elapsed, max_delay, delta=delta)
# reject values < 0
self.assertRaises(ValueError, CryptContext, min_verify_time=-1)
def test_61_autodeprecate(self):
"test deprecated='auto' is handled correctly"
def getstate(ctx, category=None):
return [ctx._is_deprecated_scheme(scheme, category) for scheme in ctx.schemes()]
# correctly reports default
ctx = CryptContext("sha256_crypt,md5_crypt,des_crypt", deprecated="auto")
self.assertEqual(getstate(ctx, None), [False, True, True])
self.assertEqual(getstate(ctx, "admin"), [False, True, True])
# correctly reports changed default
ctx.update(default="md5_crypt")
self.assertEqual(getstate(ctx, None), [True, False, True])
self.assertEqual(getstate(ctx, "admin"), [True, False, True])
# category default is handled correctly
ctx.update(admin__context__default="des_crypt")
self.assertEqual(getstate(ctx, None), [True, False, True])
self.assertEqual(getstate(ctx, "admin"), [True, True, False])
# handles 1 scheme
ctx = CryptContext(["sha256_crypt"], deprecated="auto")
self.assertEqual(getstate(ctx, None), [False])
self.assertEqual(getstate(ctx, "admin"), [False])
# disallow auto & other deprecated schemes at same time.
self.assertRaises(ValueError, CryptContext, "sha256_crypt,md5_crypt",
deprecated="auto,md5_crypt")
self.assertRaises(ValueError, CryptContext, "sha256_crypt,md5_crypt",
deprecated="md5_crypt,auto")
#===================================================================
# handler deprecation detectors
#===================================================================
def test_62_bcrypt_update(self):
"test verify_and_update / needs_update corrects bcrypt padding"
# see issue 25.
bcrypt = hash.bcrypt
PASS1 = "test"
BAD1 = "$2a$04$yjDgE74RJkeqC0/1NheSScrvKeu9IbKDpcQf/Ox3qsrRS/Kw42qIS"
GOOD1 = "$2a$04$yjDgE74RJkeqC0/1NheSSOrvKeu9IbKDpcQf/Ox3qsrRS/Kw42qIS"
ctx = CryptContext(["bcrypt"], bcrypt__rounds=4)
self.assertTrue(ctx.needs_update(BAD1))
self.assertFalse(ctx.needs_update(GOOD1))
if bcrypt.has_backend():
self.assertEqual(ctx.verify_and_update(PASS1,GOOD1), (True,None))
with self.assertWarningList(["incorrect.*padding bits"]*2):
self.assertEqual(ctx.verify_and_update("x",BAD1), (False,None))
ok, new_hash = ctx.verify_and_update(PASS1, BAD1)
self.assertTrue(ok)
self.assertTrue(new_hash and new_hash != BAD1)
def test_63_bsdi_crypt_update(self):
"test verify_and_update / needs_update corrects bsdi even rounds"
even_hash = '_Y/../cG0zkJa6LY6k4c'
odd_hash = '_Z/..TgFg0/ptQtpAgws'
secret = 'test'
ctx = CryptContext(['bsdi_crypt'], bsdi_crypt__min_rounds=5)
self.assertTrue(ctx.needs_update(even_hash))
self.assertFalse(ctx.needs_update(odd_hash))
self.assertEqual(ctx.verify_and_update(secret, odd_hash), (True,None))
self.assertEqual(ctx.verify_and_update("x", even_hash), (False,None))
ok, new_hash = ctx.verify_and_update(secret, even_hash)
self.assertTrue(ok)
self.assertTrue(new_hash and new_hash != even_hash)
#===================================================================
# eoc
#===================================================================
#=============================================================================
# LazyCryptContext
#=============================================================================
class dummy_2(uh.StaticHandler):
name = "dummy_2"
class LazyCryptContextTest(TestCase):
descriptionPrefix = "LazyCryptContext"
def setUp(self):
# make sure this isn't registered before OR after
unload_handler_name("dummy_2")
self.addCleanup(unload_handler_name, "dummy_2")
def test_kwd_constructor(self):
"test plain kwds"
self.assertFalse(has_crypt_handler("dummy_2"))
register_crypt_handler_path("dummy_2", "passlib.tests.test_context")
cc = LazyCryptContext(iter(["dummy_2", "des_crypt"]), deprecated=["des_crypt"])
self.assertFalse(has_crypt_handler("dummy_2", True))
self.assertEqual(cc.schemes(), ("dummy_2", "des_crypt"))
self.assertTrue(cc._is_deprecated_scheme("des_crypt"))
self.assertTrue(has_crypt_handler("dummy_2", True))
def test_callable_constructor(self):
self.assertFalse(has_crypt_handler("dummy_2"))
register_crypt_handler_path("dummy_2", "passlib.tests.test_context")
def onload(flag=False):
self.assertTrue(flag)
return dict(schemes=iter(["dummy_2", "des_crypt"]), deprecated=["des_crypt"])
cc = LazyCryptContext(onload=onload, flag=True)
self.assertFalse(has_crypt_handler("dummy_2", True))
self.assertEqual(cc.schemes(), ("dummy_2", "des_crypt"))
self.assertTrue(cc._is_deprecated_scheme("des_crypt"))
self.assertTrue(has_crypt_handler("dummy_2", True))
#=============================================================================
# eof
#=============================================================================
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