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from unittest.mock import patch
import pytest
from django.contrib.auth import get_user_model
from django.contrib.auth.models import AnonymousUser
from django.core.exceptions import SuspiciousOperation
from django.http import HttpResponse
from django.test import RequestFactory
from django.test.utils import modify_settings, override_settings
from django.utils.timezone import now, timedelta
from oauth2_provider.backends import OAuth2Backend
from oauth2_provider.middleware import OAuth2ExtraTokenMiddleware, OAuth2TokenMiddleware
from oauth2_provider.models import get_access_token_model, get_application_model
from .common_testing import OAuth2ProviderTestCase as TestCase
UserModel = get_user_model()
ApplicationModel = get_application_model()
AccessTokenModel = get_access_token_model()
class BaseTest(TestCase):
"""
Base class for cases in this module
"""
factory = RequestFactory()
@classmethod
def setUpTestData(cls):
cls.user = UserModel.objects.create_user("user", "test@example.com", "123456")
cls.app = ApplicationModel.objects.create(
name="app",
client_type=ApplicationModel.CLIENT_CONFIDENTIAL,
authorization_grant_type=ApplicationModel.GRANT_CLIENT_CREDENTIALS,
user=cls.user,
)
cls.token = AccessTokenModel.objects.create(
user=cls.user, token="tokstr", application=cls.app, expires=now() + timedelta(days=365)
)
class TestOAuth2Backend(BaseTest):
def test_authenticate(self):
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
backend = OAuth2Backend()
credentials = {"request": request}
u = backend.authenticate(**credentials)
self.assertEqual(u, self.user)
def test_authenticate_raises_error_with_invalid_hex_in_query_params(self):
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource?auth_token=%%7A", **auth_headers)
credentials = {"request": request}
with pytest.raises(SuspiciousOperation):
OAuth2Backend().authenticate(**credentials)
@patch("oauth2_provider.backends.OAuthLibCore.verify_request")
def test_value_errors_are_reraised(self, patched_verify_request):
patched_verify_request.side_effect = ValueError("Generic error")
with pytest.raises(ValueError):
OAuth2Backend().authenticate(request={})
def test_authenticate_fail(self):
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "badstring",
}
request = self.factory.get("/a-resource", **auth_headers)
backend = OAuth2Backend()
credentials = {"request": request}
self.assertIsNone(backend.authenticate(**credentials))
credentials = {"username": "u", "password": "p"}
self.assertIsNone(backend.authenticate(**credentials))
def test_get_user(self):
backend = OAuth2Backend()
self.assertEqual(self.user, backend.get_user(self.user.pk))
self.assertIsNone(backend.get_user(123456))
@override_settings(
AUTHENTICATION_BACKENDS=(
"oauth2_provider.backends.OAuth2Backend",
"django.contrib.auth.backends.ModelBackend",
),
)
@modify_settings(
MIDDLEWARE={
"append": "oauth2_provider.middleware.OAuth2TokenMiddleware",
}
)
class TestOAuth2Middleware(BaseTest):
def dummy_get_response(self, request):
return HttpResponse()
def test_middleware_wrong_headers(self):
m = OAuth2TokenMiddleware(self.dummy_get_response)
request = self.factory.get("/a-resource")
m(request)
self.assertFalse(hasattr(request, "user"))
auth_headers = {
"HTTP_AUTHORIZATION": "Beerer " + "badstring", # a Beer token for you!
}
request = self.factory.get("/a-resource", **auth_headers)
m(request)
self.assertFalse(hasattr(request, "user"))
def test_middleware_user_is_set(self):
m = OAuth2TokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
request.user = self.user
m(request)
self.assertIs(request.user, self.user)
request.user = AnonymousUser()
m(request)
self.assertEqual(request.user.pk, self.user.pk)
def test_middleware_success(self):
m = OAuth2TokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
m(request)
self.assertEqual(request.user, self.user)
def test_middleware_response(self):
m = OAuth2TokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
response = m(request)
self.assertIsInstance(response, HttpResponse)
def test_middleware_response_header(self):
m = OAuth2TokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
response = m(request)
self.assertIn("Vary", response)
self.assertIn("Authorization", response["Vary"])
@override_settings(
AUTHENTICATION_BACKENDS=(
"oauth2_provider.backends.OAuth2Backend",
"django.contrib.auth.backends.ModelBackend",
),
)
@modify_settings(
MIDDLEWARE={
"append": "oauth2_provider.middleware.OAuth2TokenMiddleware",
}
)
class TestOAuth2ExtraTokenMiddleware(BaseTest):
def dummy_get_response(self, request):
return HttpResponse()
def test_middleware_wrong_headers(self):
m = OAuth2ExtraTokenMiddleware(self.dummy_get_response)
request = self.factory.get("/a-resource")
m(request)
self.assertFalse(hasattr(request, "access_token"))
auth_headers = {
"HTTP_AUTHORIZATION": "Beerer " + "badstring", # a Beer token for you!
}
request = self.factory.get("/a-resource", **auth_headers)
m(request)
self.assertFalse(hasattr(request, "access_token"))
def test_middleware_token_does_not_exist(self):
m = OAuth2ExtraTokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "badtokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
m(request)
self.assertFalse(hasattr(request, "access_token"))
def test_middleware_success(self):
m = OAuth2ExtraTokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
m(request)
self.assertEqual(request.access_token, self.token)
def test_middleware_response(self):
m = OAuth2ExtraTokenMiddleware(self.dummy_get_response)
auth_headers = {
"HTTP_AUTHORIZATION": "Bearer " + "tokstr",
}
request = self.factory.get("/a-resource", **auth_headers)
response = m(request)
self.assertIsInstance(response, HttpResponse)
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