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test_views.py
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"""Test `django_fido.views` module."""
import base64
import json
from unittest.mock import patch
from django.contrib.auth import get_user, get_user_model
from django.core.exceptions import NON_FIELD_ERRORS
from django.test import TestCase, override_settings
from django.urls import reverse, reverse_lazy
from fido2.utils import websafe_decode
from fido2.webauthn import UserVerificationRequirement
from django_fido.constants import AUTHENTICATION_USER_SESSION_KEY, FIDO2_REQUEST_SESSION_KEY
from django_fido.models import Authenticator
from django_fido.views import Fido2RegistrationRequestView
from .data import (ATTESTATION_OBJECT, ATTESTATION_OBJECT_BOGUS, ATTESTATION_OBJECT_U2F_MALFORMED,
AUTHENTICATION_CHALLENGE, AUTHENTICATION_CLIENT_DATA, AUTHENTICATOR_DATA, CREDENTIAL_ID, HOSTNAME,
PASSWORD, REGISTRATION_CHALLENGE, REGISTRATION_CLIENT_DATA, SIGNATURE, USER_FIRST_NAME,
USER_FULL_NAME, USER_HANDLE, USER_HANDLE_B64, USER_LAST_NAME, USERNAME)
from .utils import TEMPLATES
User = get_user_model()
@override_settings(ROOT_URLCONF='django_fido.tests.urls')
class TestFido2RegistrationRequestView(TestCase):
"""Test `Fido2RegistrationRequestView` class."""
url = reverse_lazy('django_fido:registration_request')
def setUp(self):
self.user = User.objects.create_user(USERNAME, first_name=USER_FIRST_NAME, last_name=USER_LAST_NAME)
def test_anonymous(self):
with self.settings(LOGIN_URL='/login/'):
response = self.client.get(self.url)
self.assertRedirects(response, '/login/?next={}'.format(self.url), fetch_redirect_response=False)
def _get_fido2_request(self, challenge, credentials, *, resident=False):
credential_params = [{'alg': -7, 'type': 'public-key'}, {'alg': -8, 'type': 'public-key'},
{'alg': -35, 'type': 'public-key'}, {'alg': -36, 'type': 'public-key'},
{'alg': -37, 'type': 'public-key'}, {'alg': -257, 'type': 'public-key'}]
rp_data = {
'id': HOSTNAME,
'name': HOSTNAME,
}
fido2_request = {'publicKey': {
'rp': rp_data,
'user': {
'displayName': USER_FULL_NAME,
'id': base64.b64encode(bytes(USERNAME, encoding="utf-8")).decode("utf-8"),
'name': USERNAME
},
'challenge': base64.b64encode(challenge).decode('utf-8'),
'pubKeyCredParams': credential_params,
'attestation': 'none',
'excludeCredentials': credentials,
}}
if resident:
fido2_request['publicKey']['authenticatorSelection'] = {'requireResidentKey': True,
'residentKey': 'required'}
fido2_request['publicKey']['user']['id'] = 'AA=='
return fido2_request
def test_get(self):
self.client.force_login(self.user)
response = self.client.get(self.url)
self.assertEqual(response.status_code, 200)
# Check response
state = self.client.session[FIDO2_REQUEST_SESSION_KEY]
challenge = websafe_decode(state['challenge'])
self.assertEqual(response.json(), self._get_fido2_request(challenge, []))
@override_settings(DJANGO_FIDO_RESIDENT_KEY=True)
def test_get_resident(self):
self.client.force_login(self.user)
with patch('django_fido.views.uuid') as uuid_mock:
uuid_mock.uuid4.bytes.return_value = b'somebytes'
response = self.client.get(self.url)
self.assertEqual(response.status_code, 200)
# Check response
state = self.client.session[FIDO2_REQUEST_SESSION_KEY]
challenge = websafe_decode(state['challenge'])
self.assertEqual(response.json(), self._get_fido2_request(challenge, [], resident=True))
def test_get_registered_keys(self):
Authenticator.objects.create(user=self.user, attestation_data=ATTESTATION_OBJECT)
self.client.force_login(self.user)
response = self.client.get(self.url)
self.assertEqual(response.status_code, 200)
# Check response contains the same request as session
state = self.client.session[FIDO2_REQUEST_SESSION_KEY]
challenge = websafe_decode(state['challenge'])
credentials = [{'id': CREDENTIAL_ID, 'type': 'public-key'}]
self.assertEqual(response.json(), self._get_fido2_request(challenge, credentials))
@override_settings(DJANGO_FIDO_GET_USER_ID_CALLABLE="django_fido.tests.utils.helper_bytes")
def test_get_user_id_overridden(self):
self.assertEqual(Fido2RegistrationRequestView.get_user_id(self.user), b"2X4B-523P")
@override_settings(DJANGO_FIDO_GET_USER_DISPLAY_NAME_CALLABLE="django_fido.tests.utils.helper_str")
def test_get_user_display_name_overridden(self):
self.assertEqual(Fido2RegistrationRequestView.get_user_display_name(self.user), USER_LAST_NAME)
@override_settings(DJANGO_FIDO_GET_USERNAME_CALLABLE="django_fido.tests.utils.helper_str")
def test_get_username_overridden(self):
self.assertEqual(Fido2RegistrationRequestView.get_username(self.user), USER_LAST_NAME)
@override_settings(ROOT_URLCONF='django_fido.tests.urls', TEMPLATES=TEMPLATES)
class TestFido2RegistrationView(TestCase):
"""Test `Fido2RegistrationView` class."""
url = reverse_lazy('django_fido:registration')
state = {'challenge': REGISTRATION_CHALLENGE, 'user_verification': UserVerificationRequirement.PREFERRED}
def setUp(self):
self.user = User.objects.create_user(USERNAME)
def test_anonymous(self):
with self.settings(LOGIN_URL='/login/'):
response = self.client.get(self.url)
self.assertRedirects(response, '/login/?next={}'.format(self.url), fetch_redirect_response=False)
def test_get(self):
self.client.force_login(self.user)
response = self.client.get(self.url)
self.assertContains(response, 'Register a new FIDO 2 authenticator')
def test_post(self):
self.client.force_login(self.user)
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
response = self.client.post(self.url,
{'client_data': REGISTRATION_CLIENT_DATA, 'attestation': ATTESTATION_OBJECT,
'user_handle': 'NmM3YzVkZTJhNWRlNDAzYmExNGY5MDNmZTkwNmNkNjg='})
self.assertRedirects(response, reverse('django_fido:registration_done'))
queryset = Authenticator.objects.values_list('user__pk', 'credential_id_data', 'attestation_data', 'counter')
key_data = (self.user.pk, CREDENTIAL_ID, ATTESTATION_OBJECT, 0)
self.assertQuerysetEqual(queryset, [key_data], transform=tuple)
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
def test_post_no_session(self):
self.client.force_login(self.user)
response = self.client.post(self.url,
{'client_data': REGISTRATION_CLIENT_DATA, 'attestation': ATTESTATION_OBJECT,
'user_handle': 'NmM3YzVkZTJhNWRlNDAzYmExNGY5MDNmZTkwNmNkNjg='})
self.assertContains(response, 'Register a new FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors, {NON_FIELD_ERRORS: ['Registration request not found.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
def test_post_invalid_response(self):
self.client.force_login(self.user)
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
client_data = base64.b64encode(json.dumps({"type": "invalid"}).encode()).decode()
response = self.client.post(self.url, {'client_data': client_data, 'attestation': ATTESTATION_OBJECT,
'user_handle': 'NmM3YzVkZTJhNWRlNDAzYmExNGY5MDNmZTkwNmNkNjg='})
self.assertContains(response, 'Register a new FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors, {NON_FIELD_ERRORS: ['Registration failed.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
def test_post_invalid_format(self):
self.client.force_login(self.user)
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
url = reverse_lazy('registration_direct')
response = self.client.post(url, {'client_data': REGISTRATION_CLIENT_DATA,
'attestation': ATTESTATION_OBJECT_BOGUS,
'user_handle': 'NmM3YzVkZTJhNWRlNDAzYmExNGY5MDNmZTkwNmNkNjg='})
self.assertContains(response, 'Register a new FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors,
{NON_FIELD_ERRORS: ['Security key is not supported because it cannot be identified.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
def test_post_invalid_data(self):
self.client.force_login(self.user)
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
url = reverse_lazy('registration_direct')
response = self.client.post(url, {'client_data': REGISTRATION_CLIENT_DATA,
'attestation': ATTESTATION_OBJECT_U2F_MALFORMED,
'user_handle': 'NmM3YzVkZTJhNWRlNDAzYmExNGY5MDNmZTkwNmNkNjg='})
self.assertContains(response, 'Register a new FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors,
{NON_FIELD_ERRORS: ['Registration failed, incorrect data from security key.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
@override_settings(ROOT_URLCONF='django_fido.tests.urls')
class TestFido2AuthenticationRequestView(TestCase):
"""Test `Fido2AuthenticationRequestView` class."""
url = reverse_lazy('django_fido:authentication_request')
def setUp(self):
self.user = User.objects.create_user(USERNAME)
def test_no_user(self):
with self.settings(LOGIN_URL='/login/'):
response = self.client.get(self.url)
self.assertRedirects(response, '/login/', fetch_redirect_response=False)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_get(self):
Authenticator.objects.create(user=self.user, attestation_data=ATTESTATION_OBJECT)
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session.save()
response = self.client.get(self.url)
self.assertEqual(response.status_code, 200)
# Check response
state = self.client.session[FIDO2_REQUEST_SESSION_KEY]
challenge = websafe_decode(state['challenge'])
fido2_request = {
'publicKey': {'rpId': 'testserver',
'challenge': base64.b64encode(challenge).decode('utf-8'),
'allowCredentials': [{'id': CREDENTIAL_ID, 'type': 'public-key'}]}}
self.assertEqual(response.json(), fido2_request)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_get_no_keys(self):
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session.save()
response = self.client.get(self.url)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json(), {
'error_code': 'NoAuthenticatorsError',
'message': "Can't create FIDO 2 authentication request, no authenticators found.",
'error': "Can't create FIDO 2 authentication request, no authenticators found.",
})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=False)
def test_get_by_username(self):
Authenticator.objects.create(user=self.user, attestation_data=ATTESTATION_OBJECT)
response = self.client.get(self.url, data={'username': self.user.username})
self.assertEqual(response.status_code, 200)
# Check response
state = self.client.session[FIDO2_REQUEST_SESSION_KEY]
challenge = websafe_decode(state['challenge'])
fido2_request = {
'publicKey': {'rpId': 'testserver',
'challenge': base64.b64encode(challenge).decode('utf-8'),
'allowCredentials': [{'id': CREDENTIAL_ID, 'type': 'public-key'}]}}
self.assertEqual(response.json(), fido2_request)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=False)
def test_get_by_username_does_not_exist(self):
response = self.client.get(self.url, data={'username': 'unknown'})
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json(), {
'message': "Can't create FIDO 2 authentication request, no authenticators found.",
'error': "Can't create FIDO 2 authentication request, no authenticators found.",
'error_code': 'NoAuthenticatorsError',
})
@override_settings(ROOT_URLCONF='django_fido.tests.urls', TEMPLATES=TEMPLATES,
AUTHENTICATION_BACKENDS=['django_fido.backends.Fido2AuthenticationBackend'])
class TestFido2AuthenticationView(TestCase):
"""Test `Fido2AuthenticationView` class."""
url = reverse_lazy('django_fido:authentication')
state = {'challenge': AUTHENTICATION_CHALLENGE, 'user_verification': UserVerificationRequirement.PREFERRED}
def setUp(self):
self.user = User.objects.create_user(USERNAME, password=PASSWORD)
self.device = Authenticator.objects.create(user=self.user, credential_id_data=CREDENTIAL_ID,
attestation_data=ATTESTATION_OBJECT, user_handle=USER_HANDLE)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_no_user(self):
with self.settings(LOGIN_URL='/login/'):
response = self.client.get(self.url)
self.assertRedirects(response, '/login/', fetch_redirect_response=False)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=False)
def test_no_user_one_step(self):
response = self.client.get(self.url)
self.assertEqual(response.status_code, 200)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_get(self):
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session.save()
response = self.client.get(self.url)
self.assertContains(response, 'Authenticate a FIDO 2 authenticator')
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_post(self):
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
post = {'client_data': AUTHENTICATION_CLIENT_DATA, 'credential_id': CREDENTIAL_ID,
'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
with self.settings(LOGIN_REDIRECT_URL='/redirect/'):
response = self.client.post(self.url, post)
self.assertRedirects(response, '/redirect/', fetch_redirect_response=False)
self.assertEqual(get_user(self.client), self.user)
self.assertQuerysetEqual(Authenticator.objects.values_list('user', 'counter'), [(self.user.pk, 152)],
transform=tuple)
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertNotIn(AUTHENTICATION_USER_SESSION_KEY, self.client.session)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_post_no_session(self):
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session.save()
post = {'client_data': AUTHENTICATION_CLIENT_DATA, 'credential_id': CREDENTIAL_ID,
'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
response = self.client.post(self.url, post)
self.assertContains(response, 'Authenticate a FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors, {NON_FIELD_ERRORS: ['Authentication request not found.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertEqual(self.client.session[AUTHENTICATION_USER_SESSION_KEY], self.user.pk)
@override_settings(DJANGO_FIDO_TWO_STEP_AUTH=True)
def test_post_invalid_response(self):
session = self.client.session
session[AUTHENTICATION_USER_SESSION_KEY] = self.user.pk
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
post = {'client_data': AUTHENTICATION_CLIENT_DATA, 'credential_id': CREDENTIAL_ID,
'authenticator_data': AUTHENTICATOR_DATA, 'signature': 'INVALID='}
response = self.client.post(self.url, post)
self.assertContains(response, 'Authenticate a FIDO 2 authenticator')
self.assertEqual(response.context['form'].errors, {NON_FIELD_ERRORS: ['Authentication failed.']})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertEqual(self.client.session[AUTHENTICATION_USER_SESSION_KEY], self.user.pk)
@override_settings(
DJANGO_FIDO_TWO_STEP_AUTH=False,
AUTHENTICATION_BACKENDS=['django_fido.backends.Fido2GeneralAuthenticationBackend'],
DJANGO_FIDO_AUTHENTICATION_BACKENDS=['django.contrib.auth.backends.ModelBackend'],
)
def test_post_one_step(self):
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
post = {'username': USERNAME, 'password': PASSWORD, 'client_data': AUTHENTICATION_CLIENT_DATA,
'credential_id': CREDENTIAL_ID, 'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
with self.settings(LOGIN_REDIRECT_URL='/redirect/'):
response = self.client.post(self.url, post)
self.assertRedirects(response, '/redirect/', fetch_redirect_response=False)
self.assertEqual(get_user(self.client), self.user)
self.assertQuerysetEqual(Authenticator.objects.values_list('user', 'counter'), [(self.user.pk, 152)],
transform=tuple)
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertNotIn(AUTHENTICATION_USER_SESSION_KEY, self.client.session)
@override_settings(
DJANGO_FIDO_TWO_STEP_AUTH=False,
AUTHENTICATION_BACKENDS=['django_fido.backends.Fido2GeneralAuthenticationBackend'],
DJANGO_FIDO_AUTHENTICATION_BACKENDS=['django.contrib.auth.backends.ModelBackend'],
)
def test_post_one_step_error(self):
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
post = {'username': USERNAME, 'password': 'wrong_password', 'client_data': AUTHENTICATION_CLIENT_DATA,
'credential_id': CREDENTIAL_ID, 'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
response = self.client.post(self.url, post)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.context['form'].errors, {
'__all__': ['Please enter a correct username and password and use valid FIDO2 security key.'],
})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertNotIn(AUTHENTICATION_USER_SESSION_KEY, self.client.session)
@override_settings(
DJANGO_FIDO_TWO_STEP_AUTH=False,
AUTHENTICATION_BACKENDS=['django_fido.backends.Fido2GeneralAuthenticationBackend'],
DJANGO_FIDO_AUTHENTICATION_BACKENDS=['django.contrib.auth.backends.ModelBackend'],
)
def test_post_one_step_no_request(self):
post = {'username': USERNAME, 'password': PASSWORD, 'client_data': AUTHENTICATION_CLIENT_DATA,
'credential_id': CREDENTIAL_ID, 'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
response = self.client.post(self.url, post)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.context['form'].errors, {
'__all__': ['Authentication request not found.'],
})
self.assertNotIn(FIDO2_REQUEST_SESSION_KEY, self.client.session)
self.assertNotIn(AUTHENTICATION_USER_SESSION_KEY, self.client.session)
@override_settings(
DJANGO_FIDO_TWO_STEP_AUTH=False,
DJANGO_FIDO_RESIDENT_KEY=True,
DJANGO_FIDO_PASSWORDLESS_AUTH=True,
AUTHENTICATION_BACKENDS=['django_fido.backends.Fido2PasswordlessAuthenticationBackend'],
DJANGO_FIDO_AUTHENTICATION_BACKENDS=['django.contrib.auth.backends.ModelBackend'],
)
def test_post_passwordless(self):
session = self.client.session
session[FIDO2_REQUEST_SESSION_KEY] = self.state
session.save()
post = {'client_data': AUTHENTICATION_CLIENT_DATA, 'user_handle': USER_HANDLE_B64,
'credential_id': CREDENTIAL_ID, 'authenticator_data': AUTHENTICATOR_DATA, 'signature': SIGNATURE}
with self.settings(LOGIN_REDIRECT_URL='/redirect/'):
response = self.client.post(self.url, post)
self.assertRedirects(response, '/redirect/', fetch_redirect_response=False)
self.assertEqual(get_user(self.client), self.user)
self.assertQuerysetEqual(Authenticator.objects.values_list('user', 'counter'), [(self.user.pk, 152)],
transform=tuple)