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# -*- coding: utf-8 -*-
# Copyright: (c) 2020, Jordan Borean (@jborean93) <jborean93@gmail.com>
# MIT License (see LICENSE or https://opensource.org/licenses/MIT)
import pytest
import spnego._spnego as sp
from spnego._asn1 import TagClass, pack_asn1, pack_asn1_object_identifier
from spnego._context import GSSMech
from spnego._kerberos import KrbApRep, KrbApReq
from spnego._ntlm_raw.messages import Challenge, MessageType
from .conftest import get_data
@pytest.mark.parametrize(
"value, expected",
[
(GSSMech.kerberos.value, b"\x30\x0B\x06\x09\x2A\x86\x48\x86\xF7\x12\x01\x02\x02"),
(
[GSSMech.kerberos.value, GSSMech.ntlm.value],
b"\x30\x17\x06\x09\x2A\x86\x48\x86"
b"\xF7\x12\x01\x02\x02\x06\x0A\x2B"
b"\x06\x01\x04\x01\x82\x37\x02\x02"
b"\x0A",
),
],
)
def test_pack_mech_type_list(value, expected):
actual = sp.pack_mech_type_list(value)
import base64
print(base64.b16encode(actual).decode())
assert actual == expected
def test_spnego_context_flags_native_labels():
actual = sp.ContextFlags.native_labels()
assert isinstance(actual, dict)
assert actual[sp.ContextFlags.deleg] == "delegFlag"
def test_spnego_neg_state_native_labels():
actual = sp.NegState.native_labels()
assert isinstance(actual, dict)
assert actual[sp.NegState.accept_incomplete] == "accept-incomplete"
def test_initial_context_token_unknown_token():
token = sp.InitialContextToken(GSSMech.ntlm, b"\x00\x00\x00\x00")
assert isinstance(token, sp.InitialContextToken)
assert token.this_mech == GSSMech.ntlm.value
assert token.inner_context_token == b"\x00\x00\x00\x00"
assert token.token == b"\x00\x00\x00\x00"
def test_initial_context_token_unknown_mech():
token = sp.InitialContextToken("1.2.3.4.5", b"\x00\x00\x00\x00")
assert isinstance(token, sp.InitialContextToken)
assert token.this_mech == "1.2.3.4.5"
assert token.inner_context_token == b"\x00\x00\x00\x00"
assert token.token == b"\x00\x00\x00\x00"
def test_unpack_initial_context_token_unknown_mech():
data = pack_asn1(TagClass.application, True, 0, pack_asn1_object_identifier("1.2.3.4.5") + b"\x00\x00\x00\x00")
token = sp.unpack_token(data)
assert token == data
def test_unpack_initial_context_token_invalid_application_tag():
data = pack_asn1(TagClass.application, True, 1, b"\x00\x00\x00\x00")
expected = "Expecting a tag number of 0 not 1 for InitialContextToken"
with pytest.raises(ValueError, match=expected):
sp.unpack_token(data)
def test_unpack_initial_context_token_invalid_context_specific_tag():
data = pack_asn1(TagClass.context_specific, True, 2, b"\x00\x00\x00\x00")
expected = "Unknown NegotiationToken CHOICE 2, only expecting 0 or 1"
with pytest.raises(ValueError, match=expected):
sp.unpack_token(data)
def test_unpack_neg_token_init():
data = get_data("initial_context_token_neg_token_init")
actual = sp.unpack_token(data)
assert isinstance(actual, sp.NegTokenInit)
assert actual.hint_address is None
assert actual.hint_name is None
assert actual.mech_list_mic is None
assert isinstance(actual.mech_token, bytes)
assert actual.mech_types == ["1.2.840.113554.1.2.2", "1.3.6.1.4.1.311.2.2.10"]
assert actual.req_flags is None
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, sp.InitialContextToken)
assert actual.this_mech == GSSMech.spnego.value
assert isinstance(actual.token, sp.NegTokenInit)
def test_unpack_neg_token_init2():
data = get_data("initial_context_token_neg_token_init2")
actual = sp.unpack_token(data)
assert isinstance(actual, sp.NegTokenInit)
assert actual.hint_address is None
assert actual.hint_name == b"not_defined_in_RFC4178@please_ignore"
assert actual.mech_list_mic is None
assert actual.mech_token is None
assert actual.mech_types == [
"1.3.6.1.4.1.311.2.2.30",
"1.2.840.48018.1.2.2",
"1.2.840.113554.1.2.2",
"1.2.840.113554.1.2.2.3",
"1.3.6.1.4.1.311.2.2.10",
]
assert actual.req_flags is None
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, sp.InitialContextToken)
assert actual.this_mech == GSSMech.spnego.value
assert isinstance(actual.token, sp.NegTokenInit)
def test_unpack_neg_token_resp():
data = get_data("neg_token_resp")
actual = sp.unpack_token(data)
assert isinstance(actual, sp.NegTokenResp)
assert actual.mech_list_mic is None
assert actual.neg_state == sp.NegState.accept_complete
assert isinstance(actual.response_token, bytes)
assert actual.supported_mech == GSSMech.kerberos.value
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, sp.NegTokenResp)
def test_unpack_krb_ap_req():
data = get_data("initial_context_token_krb_ap_req")
actual = sp.unpack_token(data)
assert actual == data
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, sp.InitialContextToken)
assert actual.this_mech == GSSMech.kerberos.value
assert isinstance(actual.token, KrbApReq)
def test_unpack_krb_ap_rep():
data = get_data("initial_context_token_krb_ap_rep")
actual = sp.unpack_token(data)
assert actual == data
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, sp.InitialContextToken)
assert actual.this_mech == GSSMech.kerberos.value
assert isinstance(actual.token, KrbApRep)
def test_unpack_ntlm():
data = get_data("ntlm_challenge")
actual = sp.unpack_token(data)
assert actual == data
actual = sp.unpack_token(data, unwrap=True)
assert isinstance(actual, Challenge)
assert actual.MESSAGE_TYPE == MessageType.challenge
def test_pack_neg_token_init():
token = sp.NegTokenInit(
[GSSMech.kerberos.value, GSSMech.ntlm.value],
sp.ContextFlags.anon,
b"\x00\x00\x00\x00",
mech_list_mic=b"\x01\x01\x01\x01",
)
actual = token.pack()
assert (
actual == b"\x60\x3D\x06\x06\x2B\x06\x01\x05\x05\x02\xA0\x33\x30\x31\xA0\x19"
b"\x30\x17\x06\x09\x2A\x86\x48\x86\xF7\x12\x01\x02\x02\x06\x0A\x2B"
b"\x06\x01\x04\x01\x82\x37\x02\x02\x0A\xA1\x04\x03\x02\x00\x04\xA2"
b"\x06\x04\x04\x00\x00\x00\x00\xA3\x06\x04\x04\x01\x01\x01\x01"
)
token = sp.unpack_token(actual)
assert token.mech_types == ["1.2.840.113554.1.2.2", "1.3.6.1.4.1.311.2.2.10"]
assert token.req_flags == sp.ContextFlags.deleg
assert token.mech_token == b"\x00\x00\x00\x00"
assert token.hint_name is None
assert token.hint_address is None
assert token.mech_list_mic == b"\x01\x01\x01\x01"
def test_pack_neg_token_init2():
token = sp.NegTokenInit(
[GSSMech.kerberos.value, GSSMech.ntlm.value],
sp.ContextFlags.anon,
mech_token=b"\x00\x00\x00\x00",
hint_name=b"spn",
hint_address=b"not_defined_in_RFC4178@please_ignore",
mech_list_mic=b"\x01\x01\x01\x01",
)
actual = token.pack()
assert (
actual == b"\x60\x70\x06\x06\x2B\x06\x01\x05\x05\x02\xA0\x66\x30\x64\xA0\x19"
b"\x30\x17\x06\x09\x2A\x86\x48\x86\xF7\x12\x01\x02\x02\x06\x0A\x2B"
b"\x06\x01\x04\x01\x82\x37\x02\x02\x0A\xA1\x04\x03\x02\x00\x04\xA2"
b"\x06\x04\x04\x00\x00\x00\x00\xA3\x31\x30\x2F\xA0\x05\x1B\x03\x73"
b"\x70\x6E\xA1\x26\x04\x24\x6E\x6F\x74\x5F\x64\x65\x66\x69\x6E\x65"
b"\x64\x5F\x69\x6E\x5F\x52\x46\x43\x34\x31\x37\x38\x40\x70\x6C\x65"
b"\x61\x73\x65\x5F\x69\x67\x6E\x6F\x72\x65\xA4\x06\x04\x04\x01\x01"
b"\x01\x01"
)
token = sp.unpack_token(actual)
assert token.mech_types == ["1.2.840.113554.1.2.2", "1.3.6.1.4.1.311.2.2.10"]
assert token.req_flags == sp.ContextFlags.deleg
assert token.mech_token == b"\x00\x00\x00\x00"
assert token.hint_name == b"spn"
assert token.hint_address == b"not_defined_in_RFC4178@please_ignore"
assert token.mech_list_mic == b"\x01\x01\x01\x01"
def test_pack_neg_token_resp():
token = sp.NegTokenResp(sp.NegState.request_mic, GSSMech.ntlm.value, b"\x00\x00\x00\x00", b"\x01\x01\x01\x01")
actual = token.pack()
assert (
actual == b"\xA1\x25\x30\x23\xA0\x03\x0A\x01\x03\xA1\x0C\x06\x0A\x2B\x06\x01"
b"\x04\x01\x82\x37\x02\x02\x0A\xA2\x06\x04\x04\x00\x00\x00\x00\xA3"
b"\x06\x04\x04\x01\x01\x01\x01"
)
token = sp.unpack_token(actual)
assert token.neg_state == sp.NegState.request_mic
assert token.supported_mech == GSSMech.ntlm.value
assert token.response_token == b"\x00\x00\x00\x00"
assert token.mech_list_mic == b"\x01\x01\x01\x01"
|
