1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
"""passlib.apps"""
#=============================================================================
# imports
#=============================================================================
# core
import logging; log = logging.getLogger(__name__)
from itertools import chain
# site
# pkg
from passlib import hash
from passlib.context import LazyCryptContext
from passlib.utils import sys_bits
# local
__all__ = [
'custom_app_context',
'django_context',
'ldap_context', 'ldap_nocrypt_context',
'mysql_context', 'mysql4_context', 'mysql3_context',
'phpass_context',
'phpbb3_context',
'postgres_context',
]
#=============================================================================
# master containing all identifiable hashes
#=============================================================================
def _load_master_config():
from passlib.registry import list_crypt_handlers
# get master list
schemes = list_crypt_handlers()
# exclude the ones we know have ambiguous or greedy identify() methods.
excluded = [
# frequently confused for eachother
'bigcrypt',
'crypt16',
# no good identifiers
'cisco_pix',
'cisco_type7',
'htdigest',
'mysql323',
'oracle10',
# all have same size
'lmhash',
'msdcc',
'msdcc2',
'nthash',
# plaintext handlers
'plaintext',
'ldap_plaintext',
# disabled handlers
'django_disabled',
'unix_disabled',
'unix_fallback',
]
for name in excluded:
schemes.remove(name)
# return config
return dict(schemes=schemes, default="sha256_crypt")
master_context = LazyCryptContext(onload=_load_master_config)
#=============================================================================
# for quickly bootstrapping new custom applications
#=============================================================================
custom_app_context = LazyCryptContext(
# choose some reasonbly strong schemes
schemes=["sha512_crypt", "sha256_crypt"],
# set some useful global options
default="sha256_crypt" if sys_bits < 64 else "sha512_crypt",
all__vary_rounds = 0.1,
# set a good starting point for rounds selection
sha512_crypt__min_rounds = 60000,
sha256_crypt__min_rounds = 80000,
# if the admin user category is selected, make a much stronger hash,
admin__sha512_crypt__min_rounds = 120000,
admin__sha256_crypt__min_rounds = 160000,
)
#=============================================================================
# django
#=============================================================================
_django10_schemes = [
"django_salted_sha1", "django_salted_md5", "django_des_crypt",
"hex_md5", "django_disabled",
]
django10_context = LazyCryptContext(
schemes=_django10_schemes,
default="django_salted_sha1",
deprecated=["hex_md5"],
)
django14_context = LazyCryptContext(
schemes=["django_pbkdf2_sha256", "django_pbkdf2_sha1", "django_bcrypt"] \
+ _django10_schemes,
deprecated=_django10_schemes,
)
# this will always point to latest version
django_context = django14_context
#=============================================================================
# ldap
#=============================================================================
std_ldap_schemes = ["ldap_salted_sha1", "ldap_salted_md5",
"ldap_sha1", "ldap_md5",
"ldap_plaintext" ]
# create context with all std ldap schemes EXCEPT crypt
ldap_nocrypt_context = LazyCryptContext(std_ldap_schemes)
# create context with all possible std ldap + ldap crypt schemes
def _iter_ldap_crypt_schemes():
from passlib.utils import unix_crypt_schemes
return ('ldap_' + name for name in unix_crypt_schemes)
def _iter_ldap_schemes():
"helper which iterates over supported std ldap schemes"
return chain(std_ldap_schemes, _iter_ldap_crypt_schemes())
ldap_context = LazyCryptContext(_iter_ldap_schemes())
### create context with all std ldap schemes + crypt schemes for localhost
##def _iter_host_ldap_schemes():
## "helper which iterates over supported std ldap schemes"
## from passlib.handlers.ldap_digests import get_host_ldap_crypt_schemes
## return chain(std_ldap_schemes, get_host_ldap_crypt_schemes())
##ldap_host_context = LazyCryptContext(_iter_host_ldap_schemes())
#=============================================================================
# mysql
#=============================================================================
mysql3_context = LazyCryptContext(["mysql323"])
mysql4_context = LazyCryptContext(["mysql41", "mysql323"], deprecated="mysql323")
mysql_context = mysql4_context # tracks latest mysql version supported
#=============================================================================
# postgres
#=============================================================================
postgres_context = LazyCryptContext(["postgres_md5"])
#=============================================================================
# phpass & variants
#=============================================================================
def _create_phpass_policy(**kwds):
"helper to choose default alg based on bcrypt availability"
kwds['default'] = 'bcrypt' if hash.bcrypt.has_backend() else 'phpass'
return kwds
phpass_context = LazyCryptContext(
schemes=["bcrypt", "phpass", "bsdi_crypt"],
onload=_create_phpass_policy,
)
phpbb3_context = LazyCryptContext(["phpass"], phpass__ident="H")
# TODO: support the drupal phpass variants (see phpass homepage)
#=============================================================================
# roundup
#=============================================================================
_std_roundup_schemes = [ "ldap_hex_sha1", "ldap_hex_md5", "ldap_des_crypt", "roundup_plaintext" ]
roundup10_context = LazyCryptContext(_std_roundup_schemes)
# NOTE: 'roundup15' really applies to roundup 1.4.17+
roundup_context = roundup15_context = LazyCryptContext(
schemes=_std_roundup_schemes + [ "ldap_pbkdf2_sha1" ],
deprecated=_std_roundup_schemes,
default = "ldap_pbkdf2_sha1",
ldap_pbkdf2_sha1__default_rounds = 10000,
)
#=============================================================================
# eof
#=============================================================================
|
