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
|
__author__ = "rolandh"
ex1 = """<AuthenticationContextDeclaration
xmlns="urn:oasis:names:tc:SAML:2.0:ac:classes:Password">
<AuthnMethod>
<Authenticator>
<RestrictedPassword>
<Length min="4"/>
</RestrictedPassword>
</Authenticator>
</AuthnMethod>
</AuthenticationContextDeclaration>"""
from saml2.authn_context import AL1
from saml2.authn_context import AL2
from saml2.authn_context import AL3
from saml2.authn_context import AL4
from saml2.authn_context import PASSWORDPROTECTEDTRANSPORT
from saml2.authn_context import AuthnBroker
from saml2.authn_context import authn_context_class_ref
from saml2.authn_context import authn_context_decl_from_extension_elements
from saml2.authn_context import authn_context_factory
from saml2.authn_context import pword
from saml2.authn_context import requested_authn_context
from saml2.saml import AuthnContext
from saml2.saml import authn_context_from_string
from saml2.samlp import RequestedAuthnContext
length = pword.Length(min="4")
restricted_password = pword.RestrictedPassword(length=length)
authenticator = pword.Authenticator(restricted_password=restricted_password)
authn_method = pword.AuthnMethod(authenticator=authenticator)
ACD = pword.AuthenticationContextDeclaration(authn_method=authn_method)
AUTHNCTXT = AuthnContext(authn_context_decl=ACD)
REQAUTHNCTXT = RequestedAuthnContext(authn_context_decl_ref=ACD.c_namespace)
def test_passwd():
inst = ACD
inst2 = pword.authentication_context_declaration_from_string(ex1)
assert inst == inst2
def test_factory():
inst_pw = pword.authentication_context_declaration_from_string(ex1)
inst = authn_context_factory(ex1)
assert inst_pw == inst
def test_authn_decl_in_authn_context():
authnctxt = AuthnContext(authn_context_decl=ACD)
acs = authn_context_from_string("%s" % authnctxt)
if acs.extension_elements:
cacd = authn_context_decl_from_extension_elements(acs.extension_elements)
if cacd:
acs.authn_context_decl = cacd
assert acs.authn_context_decl == ACD
def test_authn_1():
ac = authn_context_class_ref(PASSWORDPROTECTEDTRANSPORT)
rac = requested_authn_context(PASSWORDPROTECTEDTRANSPORT)
authn = AuthnBroker()
target = "https://example.org/login"
authn.add(ac, target, 1, "http://www.example.com")
result = authn.pick(rac)
assert len(result) == 1
method, reference = result[0]
assert target == method
def test_authn_2():
authn = AuthnBroker()
target = "https://example.org/login"
authn.add(AUTHNCTXT, target, 10, "https://example.org")
result = authn.pick(REQAUTHNCTXT)
assert len(result) == 1
method, reference = result[0]
assert target == method
REF2METHOD = {
AL1: "https://example.com/authn/pin",
AL2: "https://example.com/authn/passwd",
AL3: "https://example.com/authn/multifact",
AL4: "https://example.com/authn/cert",
}
def test_authn_3():
authn = AuthnBroker()
level = 0
for ref in [AL1, AL2, AL3, AL4]:
level += 4
ac = authn_context_class_ref(ref)
authn.add(ac, REF2METHOD[ref], level, "https://www.example.com/%s" % "al%d" % level)
rac = requested_authn_context(AL1, "minimum")
info = authn.pick(rac)
assert len(info) == 4
method, ref = info[0]
assert REF2METHOD[AL1] == method
rac = requested_authn_context(AL2, "minimum")
info = authn.pick(rac)
assert len(info) == 3
method, ref = info[0]
assert REF2METHOD[AL2] == method
rac = requested_authn_context(AL3, "minimum")
info = authn.pick(rac)
assert len(info) == 2
method, ref = info[0]
assert REF2METHOD[AL3] == method
rac = requested_authn_context(AL4, "minimum")
info = authn.pick(rac)
assert len(info) == 1
method, ref = info[0]
assert REF2METHOD[AL4] == method
rac = requested_authn_context(AL1, "exact")
info = authn.pick(rac)
assert len(info) == 1
method, ref = info[0]
assert REF2METHOD[AL1] == method
rac = requested_authn_context([AL1, AL2], "exact")
info = authn.pick(rac)
assert len(info) == 2
method, ref = info[0]
assert REF2METHOD[AL1] == method
method, ref = info[1]
assert REF2METHOD[AL2] == method
rac = requested_authn_context([AL3, AL2], "exact")
info = authn.pick(rac)
assert len(info) == 2
method, ref = info[0]
assert REF2METHOD[AL3] == method
method, ref = info[1]
assert REF2METHOD[AL2] == method
rac = requested_authn_context(AL1, "better")
info = authn.pick(rac)
assert len(info) == 3
if __name__ == "__main__":
test_authn_3()
|
