Files
WYGIWYH/app/apps/common/tests/test_oauth.py
T
Herculino Trotta e925822574 fix(oauth): keep specific DCR errors without exposing exception text
Parsing helpers now return (value, error) instead of raising, so no
exception object flows into the response while clients keep the
precise messages they had before.

full_clean() failures map to fixed per-field messages; redirect URI
errors surface as NON_FIELD_ERRORS from Application.clean().

Also reject non-string token_endpoint_auth_method with a 400 instead
of crashing with a TypeError.
2026-10-10 17:48:14 -03:00

342 lines
13 KiB
Python

import os
import json
from io import StringIO
from unittest.mock import patch
from django.contrib.auth import get_user_model
from django.contrib.auth.hashers import check_password
from django.core.management import call_command
from django.test import SimpleTestCase, TestCase, override_settings
from django.utils import timezone
from django.urls import reverse
from oauth2_provider.models import get_application_model
from apps.users.models import APIToken
Application = get_application_model()
@override_settings(
PUBLIC_BASE_URL="https://wygiwyh.example.com",
SECRET_KEY="test-secret-key",
OAUTH2_PROVIDER={"SCOPES": {"mcp": "Access WYGIWYH from MCP clients."}},
)
class AuthorizationServerMetadataTests(SimpleTestCase):
@override_settings(OAUTH2_DCR_ENABLED=True)
def test_returns_oauth_authorization_server_metadata(self):
response = self.client.get(reverse("oauth-authorization-server-metadata"))
self.assertEqual(response.status_code, 200)
self.assertEqual(response.json()["issuer"], "https://wygiwyh.example.com")
self.assertEqual(
response.json()["authorization_endpoint"],
"https://wygiwyh.example.com/oauth/authorize/",
)
self.assertEqual(
response.json()["registration_endpoint"],
"https://wygiwyh.example.com/oauth/register/",
)
self.assertEqual(response.json()["scopes_supported"], ["mcp"])
self.assertIn("none", response.json()["token_endpoint_auth_methods_supported"])
@override_settings(OAUTH2_DCR_ENABLED=False)
def test_omits_registration_endpoint_when_dcr_disabled(self):
response = self.client.get(reverse("oauth-authorization-server-metadata"))
self.assertEqual(response.status_code, 200)
self.assertNotIn("registration_endpoint", response.json())
@override_settings(
PUBLIC_BASE_URL="https://wygiwyh.example.com",
SECRET_KEY="test-secret-key",
OAUTH2_PROVIDER={"SCOPES": {"mcp": "Access WYGIWYH from MCP clients."}},
OAUTH2_DCR_ENABLED=True,
OAUTH2_DCR_INITIAL_ACCESS_TOKEN="",
)
class DynamicClientRegistrationTests(TestCase):
def test_registers_public_client_for_pkce_flow(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps(
{
"client_name": "Copilot MCP",
"redirect_uris": ["http://127.0.0.1:8765/callback"],
"grant_types": ["authorization_code", "refresh_token"],
"response_types": ["code"],
"scope": "mcp",
"token_endpoint_auth_method": "none",
}
),
content_type="application/json",
)
self.assertEqual(response.status_code, 201)
payload = response.json()
self.assertEqual(payload["client_name"], "Copilot MCP")
self.assertEqual(
payload["redirect_uris"],
["http://127.0.0.1:8765/callback"],
)
self.assertEqual(
payload["grant_types"],
["authorization_code", "refresh_token"],
)
self.assertEqual(payload["response_types"], ["code"])
self.assertEqual(payload["scope"], "mcp")
self.assertEqual(payload["token_endpoint_auth_method"], "none")
self.assertNotIn("client_secret", payload)
application = Application.objects.get(client_id=payload["client_id"])
self.assertEqual(application.name, "Copilot MCP")
self.assertEqual(application.client_type, Application.CLIENT_PUBLIC)
self.assertEqual(
application.authorization_grant_type,
Application.GRANT_AUTHORIZATION_CODE,
)
self.assertEqual(
application.redirect_uris,
"http://127.0.0.1:8765/callback",
)
def test_registers_confidential_client_with_generated_secret(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps(
{
"client_name": "Confidential MCP",
"redirect_uris": ["http://127.0.0.1:8765/callback"],
"token_endpoint_auth_method": "client_secret_basic",
}
),
content_type="application/json",
)
self.assertEqual(response.status_code, 201)
payload = response.json()
self.assertEqual(payload["token_endpoint_auth_method"], "client_secret_basic")
self.assertEqual(payload["scope"], "mcp")
self.assertEqual(payload["client_secret_expires_at"], 0)
self.assertTrue(payload["client_secret"])
application = Application.objects.get(client_id=payload["client_id"])
self.assertEqual(application.client_type, Application.CLIENT_CONFIDENTIAL)
self.assertTrue(check_password(payload["client_secret"], application.client_secret))
def test_rejects_unsupported_token_auth_method(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps(
{
"redirect_uris": ["http://127.0.0.1:8765/callback"],
"token_endpoint_auth_method": "private_key_jwt",
}
),
content_type="application/json",
)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json()["error"], "invalid_client_metadata")
self.assertIn("token_endpoint_auth_method", response.json()["error_description"])
def test_rejects_missing_redirect_uris(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps({"client_name": "No redirect"}),
content_type="application/json",
)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json()["error"], "invalid_client_metadata")
self.assertIn("redirect_uris", response.json()["error_description"])
def test_rejects_invalid_json_body(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data="{not json",
content_type="application/json",
)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json()["error"], "invalid_client_metadata")
self.assertEqual(
response.json()["error_description"], "Request body must be valid JSON."
)
def test_rejects_disallowed_redirect_uri_scheme(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps({"redirect_uris": ["ftp://example.com/callback"]}),
content_type="application/json",
)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json()["error"], "invalid_client_metadata")
self.assertEqual(
response.json()["error_description"],
"redirect_uris contains an invalid or disallowed URI.",
)
def test_rejects_non_string_token_auth_method(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps(
{
"redirect_uris": ["http://127.0.0.1:8765/callback"],
"token_endpoint_auth_method": ["none"],
}
),
content_type="application/json",
)
self.assertEqual(response.status_code, 400)
self.assertEqual(response.json()["error"], "invalid_client_metadata")
self.assertIn("token_endpoint_auth_method", response.json()["error_description"])
@override_settings(OAUTH2_DCR_ENABLED=False)
def test_returns_404_when_dcr_disabled(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps({"redirect_uris": ["http://127.0.0.1:8765/callback"]}),
content_type="application/json",
)
self.assertEqual(response.status_code, 404)
self.assertEqual(Application.objects.count(), 0)
@override_settings(
PUBLIC_BASE_URL="https://wygiwyh.example.com",
SECRET_KEY="test-secret-key",
OAUTH2_PROVIDER={"SCOPES": {"mcp": "Access WYGIWYH from MCP clients."}},
OAUTH2_DCR_ENABLED=True,
OAUTH2_DCR_INITIAL_ACCESS_TOKEN="s3cret-iat",
)
class DynamicClientRegistrationInitialAccessTokenTests(TestCase):
def test_rejects_registration_without_initial_access_token(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps({"redirect_uris": ["http://127.0.0.1:8765/callback"]}),
content_type="application/json",
)
self.assertEqual(response.status_code, 401)
self.assertEqual(response.json()["error"], "invalid_token")
self.assertEqual(Application.objects.count(), 0)
def test_allows_registration_with_initial_access_token(self):
response = self.client.post(
reverse("oauth-dynamic-client-registration"),
data=json.dumps(
{
"redirect_uris": ["http://127.0.0.1:8765/callback"],
"token_endpoint_auth_method": "none",
}
),
content_type="application/json",
HTTP_AUTHORIZATION="Bearer s3cret-iat",
)
self.assertEqual(response.status_code, 201)
self.assertEqual(Application.objects.count(), 1)
class SetupOAuthCommandTests(TestCase):
@patch.dict(
os.environ,
{
"MCP_OAUTH_CLIENT_ID": "mcp-wygiwyh",
"MCP_OAUTH_CLIENT_SECRET": "super-secret",
"MCP_OAUTH_REDIRECT_URIS": "http://127.0.0.1:8765/callback",
},
clear=False,
)
def test_creates_mcp_oauth_application(self):
call_command("setup_oauth")
application = Application.objects.get(client_id="mcp-wygiwyh")
self.assertEqual(application.name, "WYGIWYH MCP")
self.assertEqual(application.client_type, Application.CLIENT_CONFIDENTIAL)
self.assertEqual(
application.authorization_grant_type,
Application.GRANT_AUTHORIZATION_CODE,
)
self.assertEqual(
application.redirect_uris,
"http://127.0.0.1:8765/callback",
)
self.assertFalse(application.skip_authorization)
self.assertTrue(check_password("super-secret", application.client_secret))
@patch.dict(
os.environ,
{
"MCP_OAUTH_CLIENT_ID": "mcp-wygiwyh",
"MCP_OAUTH_CLIENT_SECRET": "new-secret",
"MCP_OAUTH_REDIRECT_URIS": "http://127.0.0.1:8765/callback http://localhost:8765/callback",
"MCP_OAUTH_CLIENT_NAME": "WYGIWYH MCP Production",
"MCP_OAUTH_SKIP_AUTHORIZATION": "true",
},
clear=False,
)
def test_updates_existing_mcp_oauth_application(self):
Application.objects.create(
client_id="mcp-wygiwyh",
client_secret="old-secret",
name="Old Name",
client_type=Application.CLIENT_CONFIDENTIAL,
authorization_grant_type=Application.GRANT_AUTHORIZATION_CODE,
redirect_uris="http://127.0.0.1:8765/callback",
skip_authorization=False,
)
call_command("setup_oauth")
application = Application.objects.get(client_id="mcp-wygiwyh")
self.assertEqual(application.name, "WYGIWYH MCP Production")
self.assertEqual(
application.redirect_uris,
"http://127.0.0.1:8765/callback http://localhost:8765/callback",
)
self.assertTrue(application.skip_authorization)
self.assertTrue(check_password("new-secret", application.client_secret))
class CreateAPITokenCommandTests(TestCase):
def setUp(self):
self.user = get_user_model().objects.create_user(
email="n8n@example.com",
password="test-password",
)
def test_creates_hashed_api_token_and_prints_raw_value(self):
stdout = StringIO()
call_command(
"create_api_token",
self.user.email,
"--name",
"n8n sync",
stdout=stdout,
)
token = APIToken.objects.get(user=self.user, name="n8n sync")
lines = [line.strip() for line in stdout.getvalue().splitlines() if line.strip()]
raw_token = lines[-1]
self.assertTrue(raw_token.startswith(APIToken.TOKEN_PREFIX))
self.assertNotEqual(token.token_hash, raw_token)
self.assertTrue(token.check_secret(APIToken.parse_raw_token(raw_token)[1]))
def test_supports_expiring_tokens(self):
call_command(
"create_api_token",
self.user.email,
"--expires-in-days",
"7",
)
token = APIToken.objects.get(user=self.user)
self.assertIsNotNone(token.expires_at)
self.assertGreater(token.expires_at, timezone.now())