providers/oauth2: always test JWT keys in tests

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/providers/oauth2/tests/test_authorize.py

@@ -1,8 +1,7 @@
 """Test authorize view"""
-from django.test import RequestFactory, TestCase
+from django.test import RequestFactory
 from django.urls import reverse
 from django.utils.encoding import force_str
-from jwt import decode
 
 from authentik.core.models import Application, User
 from authentik.flows.challenge import ChallengeTypes
@@ -22,10 +21,11 @@ from authentik.providers.oauth2.models import (
     OAuth2Provider,
     RefreshToken,
 )
+from authentik.providers.oauth2.tests.utils import OAuthTestCase
 from authentik.providers.oauth2.views.authorize import OAuthAuthorizationParams
 
 
-class TestAuthorize(TestCase):
+class TestAuthorize(OAuthTestCase):
     """Test authorize view"""
 
     def setUp(self) -> None:
@@ -238,23 +238,4 @@ class TestAuthorize(TestCase):
                 ),
             },
         )
-        jwt = decode(
-            token.access_token,
-            provider.client_secret,
-            algorithms=[provider.jwt_alg],
-            audience=provider.client_id,
-        )
-        self.assertIsNotNone(jwt["exp"])
-        self.assertIsNotNone(jwt["iat"])
-        self.assertIsNotNone(jwt["auth_time"])
-        self.assertIsNotNone(jwt["acr"])
-        self.assertIsNotNone(jwt["sub"])
-        self.assertIsNotNone(jwt["iss"])
-        # Check id_token
-        id_token = token.id_token.to_dict()
-        self.assertIsNotNone(id_token["exp"])
-        self.assertIsNotNone(id_token["iat"])
-        self.assertIsNotNone(id_token["auth_time"])
-        self.assertIsNotNone(id_token["acr"])
-        self.assertIsNotNone(id_token["sub"])
-        self.assertIsNotNone(id_token["iss"])
+        self.validate_jwt(token, provider)

authentik/providers/oauth2/tests/test_token.py

@@ -1,11 +1,11 @@
 """Test token view"""
 from base64 import b64encode
 
-from django.test import RequestFactory, TestCase
+from django.test import RequestFactory
 from django.urls import reverse
 from django.utils.encoding import force_str
 
-from authentik.core.models import User
+from authentik.core.models import Application, User
 from authentik.flows.models import Flow
 from authentik.providers.oauth2.constants import (
     GRANT_TYPE_AUTHORIZATION_CODE,
@@ -20,15 +20,17 @@ from authentik.providers.oauth2.models import (
     OAuth2Provider,
     RefreshToken,
 )
+from authentik.providers.oauth2.tests.utils import OAuthTestCase
 from authentik.providers.oauth2.views.token import TokenParams
 
 
-class TestToken(TestCase):
+class TestToken(OAuthTestCase):
     """Test token view"""
 
     def setUp(self) -> None:
         super().setUp()
         self.factory = RequestFactory()
+        self.app = Application.objects.create(name="test", slug="test")
 
     def test_request_auth_code(self):
         """test request param"""
@@ -97,12 +99,15 @@ class TestToken(TestCase):
             authorization_flow=Flow.objects.first(),
             redirect_uris="http://local.invalid",
         )
+        # Needs to be assigned to an application for iss to be set
+        self.app.provider = provider
+        self.app.save()
         header = b64encode(
             f"{provider.client_id}:{provider.client_secret}".encode()
         ).decode()
         user = User.objects.get(username="akadmin")
         code = AuthorizationCode.objects.create(
-            code="foobar", provider=provider, user=user
+            code="foobar", provider=provider, user=user, is_open_id=True
         )
         response = self.client.post(
             reverse("authentik_providers_oauth2:token"),
@@ -126,6 +131,7 @@ class TestToken(TestCase):
                 ),
             },
         )
+        self.validate_jwt(new_token, provider)
 
     def test_refresh_token_view(self):
         """test request param"""
@@ -136,6 +142,9 @@ class TestToken(TestCase):
             authorization_flow=Flow.objects.first(),
             redirect_uris="http://local.invalid",
         )
+        # Needs to be assigned to an application for iss to be set
+        self.app.provider = provider
+        self.app.save()
         header = b64encode(
             f"{provider.client_id}:{provider.client_secret}".encode()
         ).decode()
@@ -174,6 +183,7 @@ class TestToken(TestCase):
                 ),
             },
         )
+        self.validate_jwt(new_token, provider)
 
     def test_refresh_token_view_invalid_origin(self):
         """test request param"""

authentik/providers/oauth2/tests/utils.py

@@ -0,0 +1,31 @@
+"""OAuth test helpers"""
+from django.test import TestCase
+from jwt import decode
+
+from authentik.providers.oauth2.models import OAuth2Provider, RefreshToken
+
+
+class OAuthTestCase(TestCase):
+    """OAuth test helpers"""
+
+    required_jwt_keys = [
+        "exp",
+        "iat",
+        "auth_time",
+        "acr",
+        "sub",
+        "iss",
+    ]
+
+    def validate_jwt(self, token: RefreshToken, provider: OAuth2Provider):
+        """Validate that all required fields are set"""
+        jwt = decode(
+            token.access_token,
+            provider.client_secret,
+            algorithms=[provider.jwt_alg],
+            audience=provider.client_id,
+        )
+        id_token = token.id_token.to_dict()
+        for key in self.required_jwt_keys:
+            self.assertIsNotNone(jwt[key], f"Key {key} is missing in access_token")
+            self.assertIsNotNone(id_token[key], f"Key {key} is missing in id_token")

authentik/providers/oauth2/views/token.py

@@ -16,6 +16,7 @@ from authentik.providers.oauth2.constants import (
 from authentik.providers.oauth2.errors import TokenError, UserAuthError
 from authentik.providers.oauth2.models import (
     AuthorizationCode,
+    ClientTypes,
     OAuth2Provider,
     RefreshToken,
 )
@@ -75,7 +76,7 @@ class TokenParams:
             LOGGER.warning("OAuth2Provider does not exist", client_id=self.client_id)
             raise TokenError("invalid_client")
 
-        if self.provider.client_type == "confidential":
+        if self.provider.client_type == ClientTypes.CONFIDENTIAL:
             if self.provider.client_secret != self.client_secret:
                 LOGGER.warning(
                     "Invalid client secret: client does not have secret",