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import calendar
import datetime
import pytest
from django.conf import settings
from django.conf.urls import include
from django.contrib.auth import get_user_model
from django.http import HttpResponse
from django.test import override_settings
from django.urls import path
from django.utils import timezone
from oauthlib.common import Request
from oauth2_provider.compat import login_not_required
from oauth2_provider.models import get_access_token_model, get_application_model
from oauth2_provider.oauth2_validators import OAuth2Validator
from oauth2_provider.settings import oauth2_settings
from oauth2_provider.views import ScopedProtectedResourceView
from . import presets
from .common_testing import OAuth2ProviderTestCase as TestCase
try:
from unittest import mock
except ImportError:
import mock
Application = get_application_model()
AccessToken = get_access_token_model()
UserModel = get_user_model()
default_exp = datetime.datetime.now() + datetime.timedelta(days=1)
class ScopeResourceView(ScopedProtectedResourceView):
required_scopes = ["dolphin"]
def get(self, request, *args, **kwargs):
return HttpResponse("This is a protected resource", 200)
def post(self, request, *args, **kwargs):
return HttpResponse("This is a protected resource", 200)
class MockResponse:
def __init__(self, json_data, status_code):
self.json_data = json_data
self.status_code = status_code
def json(self):
return self.json_data
def mocked_requests_post(url, data, *args, **kwargs):
"""
Mock the response from the authentication server
"""
if "token" in data and data["token"] and data["token"] != "12345678900":
return MockResponse(
{
"active": True,
"scope": "read write dolphin",
"client_id": "client_id_{}".format(data["token"]),
"username": "{}_user".format(data["token"]),
"exp": int(calendar.timegm(default_exp.timetuple())),
},
200,
)
return MockResponse(
{
"active": False,
},
200,
)
def mocked_introspect_request_short_living_token(url, data, *args, **kwargs):
exp = datetime.datetime.now() + datetime.timedelta(minutes=30)
return MockResponse(
{
"active": True,
"scope": "read write dolphin",
"client_id": "client_id_{}".format(data["token"]),
"username": "{}_user".format(data["token"]),
"exp": int(calendar.timegm(exp.timetuple())),
},
200,
)
urlpatterns = [
path("oauth2/", include("oauth2_provider.urls")),
path("oauth2-test-resource/", login_not_required(ScopeResourceView.as_view())),
]
@override_settings(ROOT_URLCONF=__name__)
@pytest.mark.usefixtures("oauth2_settings")
@pytest.mark.oauth2_settings(presets.INTROSPECTION_SETTINGS)
class TestTokenIntrospectionAuth(TestCase):
"""
Tests for Authorization through token introspection
"""
@classmethod
def setUpTestData(cls):
cls.validator = OAuth2Validator()
cls.request = mock.MagicMock(wraps=Request)
cls.resource_server_user = UserModel.objects.create_user(
"resource_server", "test@example.com", "123456"
)
cls.application = Application.objects.create(
name="Test Application",
redirect_uris="http://localhost http://example.com http://example.org",
user=cls.resource_server_user,
client_type=Application.CLIENT_CONFIDENTIAL,
authorization_grant_type=Application.GRANT_AUTHORIZATION_CODE,
)
cls.resource_server_token = AccessToken.objects.create(
user=cls.resource_server_user,
token="12345678900",
application=cls.application,
expires=timezone.now() + datetime.timedelta(days=1),
scope="introspection",
)
cls.invalid_token = AccessToken.objects.create(
user=cls.resource_server_user,
token="12345678901",
application=cls.application,
expires=timezone.now() + datetime.timedelta(days=-1),
scope="read write dolphin",
)
def setUp(self):
self.oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN = self.resource_server_token.token
@mock.patch("requests.post", side_effect=mocked_requests_post)
def test_get_token_from_authentication_server_not_existing_token(self, mock_get):
"""
Test method _get_token_from_authentication_server with non existing token
"""
token = self.validator._get_token_from_authentication_server(
self.resource_server_token.token,
self.oauth2_settings.RESOURCE_SERVER_INTROSPECTION_URL,
self.oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN,
self.oauth2_settings.RESOURCE_SERVER_INTROSPECTION_CREDENTIALS,
)
self.assertIsNone(token)
@mock.patch("requests.post", side_effect=mocked_requests_post)
def test_get_token_from_authentication_server_existing_token(self, mock_get):
"""
Test method _get_token_from_authentication_server with existing token
"""
token = self.validator._get_token_from_authentication_server(
"foo",
self.oauth2_settings.RESOURCE_SERVER_INTROSPECTION_URL,
self.oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN,
self.oauth2_settings.RESOURCE_SERVER_INTROSPECTION_CREDENTIALS,
)
self.assertIsInstance(token, AccessToken)
self.assertEqual(token.user.username, "foo_user")
self.assertEqual(token.scope, "read write dolphin")
@mock.patch("requests.post", side_effect=mocked_introspect_request_short_living_token)
def test_get_token_from_authentication_server_expires_no_timezone(self, mock_get):
"""
Test method _get_token_from_authentication_server for projects with USE_TZ False
"""
settings_use_tz_backup = settings.USE_TZ
settings.USE_TZ = False
try:
access_token = self.validator._get_token_from_authentication_server(
"foo",
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_URL,
oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN,
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_CREDENTIALS,
)
self.assertFalse(access_token.is_expired())
except ValueError as exception:
self.fail(str(exception))
finally:
settings.USE_TZ = settings_use_tz_backup
@mock.patch("requests.post", side_effect=mocked_introspect_request_short_living_token)
def test_get_token_from_authentication_server_expires_utc_timezone(self, mock_get):
"""
Test method _get_token_from_authentication_server for projects with USE_TZ True and a UTC Timezone
"""
settings_use_tz_backup = settings.USE_TZ
settings_time_zone_backup = settings.TIME_ZONE
settings.USE_TZ = True
settings.TIME_ZONE = "UTC"
try:
access_token = self.validator._get_token_from_authentication_server(
"foo",
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_URL,
oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN,
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_CREDENTIALS,
)
self.assertFalse(access_token.is_expired())
except ValueError as exception:
self.fail(str(exception))
finally:
settings.USE_TZ = settings_use_tz_backup
settings.TIME_ZONE = settings_time_zone_backup
@mock.patch("requests.post", side_effect=mocked_introspect_request_short_living_token)
def test_get_token_from_authentication_server_expires_non_utc_timezone(self, mock_get):
"""
Test method _get_token_from_authentication_server for projects with USE_TZ True and a non UTC Timezone
This test is important to check if the UTC Exp. date gets converted correctly
"""
settings_use_tz_backup = settings.USE_TZ
settings_time_zone_backup = settings.TIME_ZONE
settings.USE_TZ = True
settings.TIME_ZONE = "Europe/Amsterdam"
try:
access_token = self.validator._get_token_from_authentication_server(
"foo",
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_URL,
oauth2_settings.RESOURCE_SERVER_AUTH_TOKEN,
oauth2_settings.RESOURCE_SERVER_INTROSPECTION_CREDENTIALS,
)
self.assertFalse(access_token.is_expired())
except ValueError as exception:
self.fail(str(exception))
finally:
settings.USE_TZ = settings_use_tz_backup
settings.TIME_ZONE = settings_time_zone_backup
@mock.patch("requests.post", side_effect=mocked_requests_post)
def test_validate_bearer_token(self, mock_get):
"""
Test method validate_bearer_token
"""
# with token = None
self.assertFalse(self.validator.validate_bearer_token(None, ["dolphin"], self.request))
# with valid token and scope
self.assertTrue(
self.validator.validate_bearer_token(
self.resource_server_token.token, ["introspection"], self.request
)
)
# with initially invalid token, but validated through request
self.assertTrue(
self.validator.validate_bearer_token(self.invalid_token.token, ["dolphin"], self.request)
)
# with locally unavailable token, but validated through request
self.assertTrue(self.validator.validate_bearer_token("butzi", ["dolphin"], self.request))
# with valid token but invalid scope
self.assertFalse(self.validator.validate_bearer_token("foo", ["kaudawelsch"], self.request))
# with token validated through request, but invalid scope
self.assertFalse(self.validator.validate_bearer_token("butz", ["kaudawelsch"], self.request))
# with token validated through request and valid scope
self.assertTrue(self.validator.validate_bearer_token("butzi", ["dolphin"], self.request))
@mock.patch("requests.post", side_effect=mocked_requests_post)
def test_get_resource(self, mock_get):
"""
Test that we can access the resource with a get request and a remotely validated token
"""
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer bar",
}
response = self.client.get("/oauth2-test-resource/", **auth_headers)
self.assertEqual(response.content.decode("utf-8"), "This is a protected resource")
@mock.patch("requests.post", side_effect=mocked_requests_post)
def test_post_resource(self, mock_get):
"""
Test that we can access the resource with a post request and a remotely validated token
"""
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer batz",
}
response = self.client.post("/oauth2-test-resource/", **auth_headers)
self.assertEqual(response.content.decode("utf-8"), "This is a protected resource")
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