feat(oauth): Phase B — claude.ai protocol compatibility
Add 3 features for claude.ai Connectors compatibility: - FEATURE-3: client_secret_basic auth on token endpoint (RFC 6749 §2.3.1) - FEATURE-2: Token revocation endpoint /oauth/revoke (RFC 7009) - FEATURE-4: resource parameter support with JWT aud claim (RFC 8707) 23 new tests (481 total), all passing. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
airano
165
tests/test_oauth_basic_auth.py
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165
tests/test_oauth_basic_auth.py
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"""Tests for client_secret_basic (HTTP Basic Auth) on the OAuth token endpoint."""
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import base64
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import os
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import tempfile
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from unittest.mock import AsyncMock, MagicMock
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import pytest
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def _make_request(headers=None, body=None, content_type="application/x-www-form-urlencoded"):
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"""Create a mock Starlette Request for oauth_token."""
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request = AsyncMock()
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request.headers = MagicMock()
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_headers = {"content-type": content_type}
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if headers:
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_headers.update(headers)
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request.headers.get = lambda key, default="": _headers.get(key.lower(), default)
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form_data = body or {}
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form = AsyncMock(return_value=form_data)
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request.form = form
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return request
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def _encode_basic(client_id: str, client_secret: str) -> str:
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"""Encode client_id:client_secret as Basic Auth header value."""
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raw = f"{client_id}:{client_secret}"
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encoded = base64.b64encode(raw.encode("utf-8")).decode("utf-8")
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return f"Basic {encoded}"
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@pytest.fixture
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def temp_storage():
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"""Create temporary storage for OAuth tests."""
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with tempfile.TemporaryDirectory() as tmpdir:
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os.environ["OAUTH_STORAGE_PATH"] = tmpdir
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os.environ["OAUTH_JWT_SECRET_KEY"] = "test_secret_key_for_basic_auth_tests"
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from core.oauth import client_registry, server, storage, token_manager
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client_registry._client_registry = None
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token_manager._token_manager = None
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storage._storage = None
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server._oauth_server = None
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yield tmpdir
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os.environ.pop("OAUTH_STORAGE_PATH", None)
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os.environ.pop("OAUTH_JWT_SECRET_KEY", None)
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client_registry._client_registry = None
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token_manager._token_manager = None
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storage._storage = None
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server._oauth_server = None
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async def _call_oauth_token(request):
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"""Import and call the oauth_token endpoint from server.py."""
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from server import oauth_token
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return await oauth_token(request)
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@pytest.mark.unit
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class TestClientSecretBasicAuth:
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"""Tests for client_secret_basic authentication on the token endpoint."""
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async def test_basic_auth_header_parsed(self, temp_storage):
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"""Basic Auth header is correctly parsed (base64 encoded client_id:client_secret)."""
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request = _make_request(
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headers={"authorization": _encode_basic("my_client_id", "my_client_secret")},
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body={"grant_type": "client_credentials"},
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)
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response = await _call_oauth_token(request)
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# The request will likely fail on actual client validation,
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# but we're testing that it gets past the credential parsing stage.
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# If it returned invalid_request with "Missing client_id", Basic Auth parsing failed.
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import json
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data = json.loads(response.body)
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assert data.get("error") != "invalid_request" or "Missing client_id" not in data.get(
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"error_description", ""
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)
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async def test_body_params_take_priority_over_basic_auth(self, temp_storage):
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"""Body params take priority over Basic Auth (setdefault behavior)."""
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request = _make_request(
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headers={"authorization": _encode_basic("basic_id", "basic_secret")},
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body={
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"grant_type": "client_credentials",
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"client_id": "body_id",
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"client_secret": "body_secret",
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},
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)
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response = await _call_oauth_token(request)
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import json
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data = json.loads(response.body)
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# The body params should be used, not the Basic Auth ones.
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# If the error mentions "body_id", body params were used.
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# If it mentions "basic_id", Basic Auth overrode body params (wrong).
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# Since the client won't exist, we expect invalid_client error.
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# The key check: it should NOT have replaced body_id with basic_id.
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if data.get("error") == "invalid_client":
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# The error came from actual client validation, meaning
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# credentials were parsed. The body params were used.
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pass
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else:
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# Should not get "Missing client_id" error
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assert "Missing client_id" not in data.get("error_description", "")
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async def test_malformed_basic_auth_returns_invalid_client(self, temp_storage):
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"""Malformed Basic Auth header returns invalid_client with 401 status."""
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request = _make_request(
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headers={"authorization": "Basic !!!not-valid-base64!!!"},
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body={"grant_type": "client_credentials"},
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)
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response = await _call_oauth_token(request)
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import json
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data = json.loads(response.body)
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assert data["error"] == "invalid_client"
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assert "Invalid Basic authentication header" in data["error_description"]
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assert response.status_code == 401
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async def test_missing_credentials_returns_invalid_request(self, temp_storage):
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"""Missing credentials (no body, no Basic header) returns invalid_request."""
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request = _make_request(
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body={"grant_type": "client_credentials"},
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)
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response = await _call_oauth_token(request)
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import json
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data = json.loads(response.body)
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assert data["error"] == "invalid_request"
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assert "Missing client_id or client_secret" in data["error_description"]
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async def test_client_secret_with_colon(self, temp_storage):
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"""client_secret containing ':' is handled correctly (split on first ':' only)."""
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secret_with_colon = "my:secret:with:colons"
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request = _make_request(
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headers={"authorization": _encode_basic("my_client_id", secret_with_colon)},
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body={"grant_type": "client_credentials"},
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)
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response = await _call_oauth_token(request)
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import json
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data = json.loads(response.body)
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# Should not get invalid_request about missing credentials
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assert data.get("error") != "invalid_request" or "Missing client_id" not in data.get(
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"error_description", ""
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)
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# Should not get invalid_client from Basic Auth parsing
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assert data.get("error_description") != "Invalid Basic authentication header"
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333
tests/test_oauth_resource.py
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333
tests/test_oauth_resource.py
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"""
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Tests for RFC 8707 resource parameter support in OAuth 2.1 flow.
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Validates that the resource parameter is:
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1. Accepted and stored in authorization codes
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2. Passed through to JWT access tokens as aud claim
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3. Optional -- existing flows without resource continue to work
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"""
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import os
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import tempfile
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from datetime import UTC, datetime, timedelta
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import jwt
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import pytest
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from core.oauth.schemas import AuthorizationCode
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from core.oauth.token_manager import TokenManager
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@pytest.fixture
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def token_manager():
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"""Create a fresh TokenManager for tests."""
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os.environ["OAUTH_JWT_SECRET_KEY"] = "test_secret_key_resource"
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with tempfile.TemporaryDirectory() as tmpdir:
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os.environ["OAUTH_STORAGE_PATH"] = tmpdir
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yield TokenManager()
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os.environ.pop("OAUTH_JWT_SECRET_KEY", None)
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os.environ.pop("OAUTH_STORAGE_PATH", None)
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@pytest.fixture
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def temp_storage():
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"""Create temporary storage for OAuth server tests."""
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with tempfile.TemporaryDirectory() as tmpdir:
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os.environ["OAUTH_STORAGE_PATH"] = tmpdir
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os.environ["OAUTH_JWT_SECRET_KEY"] = "test_secret_key_resource"
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from core.oauth import client_registry, server, storage, token_manager
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client_registry._client_registry = None
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token_manager._token_manager = None
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storage._storage = None
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server._oauth_server = None
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yield tmpdir
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# Teardown
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os.environ.pop("OAUTH_STORAGE_PATH", None)
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os.environ.pop("OAUTH_JWT_SECRET_KEY", None)
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client_registry._client_registry = None
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token_manager._token_manager = None
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storage._storage = None
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server._oauth_server = None
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@pytest.fixture
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def oauth_components(temp_storage):
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"""Get fresh OAuth components."""
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from core.oauth import get_client_registry, get_oauth_server, get_storage, get_token_manager
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return {
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"server": get_oauth_server(),
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"client_registry": get_client_registry(),
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"token_manager": get_token_manager(),
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"storage": get_storage(),
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}
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@pytest.fixture
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def test_client(oauth_components):
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"""Create a test OAuth client."""
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client_registry = oauth_components["client_registry"]
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client_id, client_secret = client_registry.create_client(
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client_name="Resource Test Client",
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redirect_uris=["http://localhost:3000/callback"],
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grant_types=["authorization_code", "refresh_token"],
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allowed_scopes=["read", "write"],
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)
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return {
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"client_id": client_id,
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"client_secret": client_secret,
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"redirect_uri": "http://localhost:3000/callback",
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}
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# --- AuthorizationCode schema tests ---
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def test_authorization_code_accepts_resource():
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"""Test that AuthorizationCode model accepts and stores the resource field."""
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auth_code = AuthorizationCode(
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code="auth_test123",
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client_id="test_client",
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redirect_uri="http://localhost:3000/callback",
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scope="read write",
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code_challenge="abc123",
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code_challenge_method="S256",
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expires_at=datetime.now(UTC) + timedelta(minutes=5),
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resource="https://mcp.example.com",
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)
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assert auth_code.resource == "https://mcp.example.com"
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def test_authorization_code_resource_defaults_to_none():
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"""Test that AuthorizationCode resource defaults to None when not provided."""
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auth_code = AuthorizationCode(
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code="auth_test456",
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client_id="test_client",
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redirect_uri="http://localhost:3000/callback",
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scope="read",
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code_challenge="xyz789",
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code_challenge_method="S256",
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expires_at=datetime.now(UTC) + timedelta(minutes=5),
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)
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assert auth_code.resource is None
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# --- create_authorization_code tests ---
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def test_create_authorization_code_with_resource(oauth_components, test_client):
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"""Test that create_authorization_code accepts and stores resource parameter."""
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from core.oauth import generate_code_challenge, generate_code_verifier
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code_verifier = generate_code_verifier()
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code_challenge = generate_code_challenge(code_verifier)
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oauth_server = oauth_components["server"]
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resource_url = "https://mcp.example.com"
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code = oauth_server.create_authorization_code(
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client_id=test_client["client_id"],
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redirect_uri=test_client["redirect_uri"],
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scope="read write",
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code_challenge=code_challenge,
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code_challenge_method="S256",
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resource=resource_url,
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)
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assert code.startswith("auth_")
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# Verify resource is stored in the authorization code
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stored_code = oauth_components["storage"].get_authorization_code(code)
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assert stored_code is not None
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assert stored_code.resource == resource_url
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def test_create_authorization_code_without_resource(oauth_components, test_client):
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"""Test that create_authorization_code works without resource (backward compat)."""
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from core.oauth import generate_code_challenge, generate_code_verifier
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code_verifier = generate_code_verifier()
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code_challenge = generate_code_challenge(code_verifier)
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oauth_server = oauth_components["server"]
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code = oauth_server.create_authorization_code(
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client_id=test_client["client_id"],
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redirect_uri=test_client["redirect_uri"],
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scope="read write",
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code_challenge=code_challenge,
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code_challenge_method="S256",
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)
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assert code.startswith("auth_")
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stored_code = oauth_components["storage"].get_authorization_code(code)
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assert stored_code is not None
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assert stored_code.resource is None
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# --- generate_access_token / JWT aud claim tests ---
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def test_generate_access_token_with_resource_sets_aud(token_manager):
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"""Test that resource parameter flows through to JWT aud claim."""
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resource_url = "https://mcp.example.com"
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token = token_manager.generate_access_token(
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client_id="test_client",
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scope="read write",
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user_id="user_123",
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resource=resource_url,
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)
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# Decode JWT and verify aud claim
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payload = jwt.decode(
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token,
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"test_secret_key_resource",
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algorithms=["HS256"],
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audience=resource_url,
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)
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assert payload["aud"] == resource_url
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assert payload["client_id"] == "test_client"
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assert payload["sub"] == "user_123"
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def test_generate_access_token_without_resource_no_aud(token_manager):
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"""Test that JWT has no aud claim when resource is not provided."""
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token = token_manager.generate_access_token(
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client_id="test_client",
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scope="read write",
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user_id="user_123",
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)
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payload = jwt.decode(
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token,
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"test_secret_key_resource",
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algorithms=["HS256"],
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)
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assert "aud" not in payload
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assert payload["client_id"] == "test_client"
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def test_generate_access_token_resource_none_no_aud(token_manager):
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"""Test that resource=None does not add aud claim."""
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token = token_manager.generate_access_token(
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client_id="test_client",
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scope="read",
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resource=None,
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)
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payload = jwt.decode(
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token,
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"test_secret_key_resource",
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algorithms=["HS256"],
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)
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assert "aud" not in payload
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def test_generate_access_token_resource_empty_string_no_aud(token_manager):
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"""Test that empty string resource does not add aud claim."""
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token = token_manager.generate_access_token(
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client_id="test_client",
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scope="read",
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resource="",
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)
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payload = jwt.decode(
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token,
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"test_secret_key_resource",
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algorithms=["HS256"],
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)
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assert "aud" not in payload
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# --- Full flow: resource through code exchange ---
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def test_full_flow_resource_to_jwt_aud(oauth_components, test_client):
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"""Test that resource flows from auth code creation through to JWT aud claim."""
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from core.oauth import generate_code_challenge, generate_code_verifier
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code_verifier = generate_code_verifier()
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code_challenge = generate_code_challenge(code_verifier)
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oauth_server = oauth_components["server"]
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resource_url = "https://mcp.example.com"
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# Step 1: Create authorization code with resource
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code = oauth_server.create_authorization_code(
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client_id=test_client["client_id"],
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redirect_uri=test_client["redirect_uri"],
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scope="read write",
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code_challenge=code_challenge,
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code_challenge_method="S256",
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api_key_id="master",
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api_key_project_id="*",
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api_key_scope="read write",
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resource=resource_url,
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)
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# Step 2: Exchange code for tokens
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token_response = oauth_server.exchange_code_for_tokens(
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client_id=test_client["client_id"],
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client_secret=test_client["client_secret"],
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code=code,
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redirect_uri=test_client["redirect_uri"],
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code_verifier=code_verifier,
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)
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# Step 3: Verify JWT contains aud claim
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payload = jwt.decode(
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token_response.access_token,
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os.environ["OAUTH_JWT_SECRET_KEY"],
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algorithms=["HS256"],
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audience=resource_url,
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)
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assert payload["aud"] == resource_url
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def test_full_flow_without_resource_no_aud(oauth_components, test_client):
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"""Test that full flow without resource produces JWT without aud claim."""
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from core.oauth import generate_code_challenge, generate_code_verifier
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code_verifier = generate_code_verifier()
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code_challenge = generate_code_challenge(code_verifier)
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oauth_server = oauth_components["server"]
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# Step 1: Create authorization code WITHOUT resource
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code = oauth_server.create_authorization_code(
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client_id=test_client["client_id"],
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redirect_uri=test_client["redirect_uri"],
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scope="read write",
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code_challenge=code_challenge,
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code_challenge_method="S256",
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api_key_id="master",
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api_key_project_id="*",
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api_key_scope="read write",
|
||||
)
|
||||
|
||||
# Step 2: Exchange code for tokens
|
||||
token_response = oauth_server.exchange_code_for_tokens(
|
||||
client_id=test_client["client_id"],
|
||||
client_secret=test_client["client_secret"],
|
||||
code=code,
|
||||
redirect_uri=test_client["redirect_uri"],
|
||||
code_verifier=code_verifier,
|
||||
)
|
||||
|
||||
# Step 3: Verify JWT does NOT contain aud claim
|
||||
payload = jwt.decode(
|
||||
token_response.access_token,
|
||||
os.environ["OAUTH_JWT_SECRET_KEY"],
|
||||
algorithms=["HS256"],
|
||||
)
|
||||
assert "aud" not in payload
|
||||
227
tests/test_oauth_revoke.py
Normal file
227
tests/test_oauth_revoke.py
Normal file
@@ -0,0 +1,227 @@
|
||||
"""Tests for OAuth 2.0 Token Revocation endpoint (RFC 7009)."""
|
||||
|
||||
import base64
|
||||
import json
|
||||
import os
|
||||
import tempfile
|
||||
from unittest.mock import AsyncMock, MagicMock
|
||||
|
||||
import pytest
|
||||
|
||||
|
||||
def _make_request(headers=None, body=None, content_type="application/x-www-form-urlencoded"):
|
||||
"""Create a mock Starlette Request for oauth_revoke."""
|
||||
request = AsyncMock()
|
||||
request.headers = MagicMock()
|
||||
_headers = {"content-type": content_type}
|
||||
if headers:
|
||||
_headers.update(headers)
|
||||
request.headers.get = lambda key, default="": _headers.get(key.lower(), default)
|
||||
|
||||
form_data = body or {}
|
||||
form = AsyncMock(return_value=form_data)
|
||||
request.form = form
|
||||
|
||||
if "application/json" in content_type:
|
||||
request.json = AsyncMock(return_value=form_data)
|
||||
|
||||
return request
|
||||
|
||||
|
||||
def _encode_basic(client_id: str, client_secret: str) -> str:
|
||||
"""Encode client_id:client_secret as Basic Auth header value."""
|
||||
raw = f"{client_id}:{client_secret}"
|
||||
encoded = base64.b64encode(raw.encode("utf-8")).decode("utf-8")
|
||||
return f"Basic {encoded}"
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def temp_storage():
|
||||
"""Create temporary storage for OAuth tests."""
|
||||
with tempfile.TemporaryDirectory() as tmpdir:
|
||||
os.environ["OAUTH_STORAGE_PATH"] = tmpdir
|
||||
os.environ["OAUTH_JWT_SECRET_KEY"] = "test_secret_key_for_revoke_tests"
|
||||
|
||||
from core.oauth import client_registry, server, storage, token_manager
|
||||
|
||||
client_registry._client_registry = None
|
||||
token_manager._token_manager = None
|
||||
storage._storage = None
|
||||
server._oauth_server = None
|
||||
|
||||
yield tmpdir
|
||||
|
||||
os.environ.pop("OAUTH_STORAGE_PATH", None)
|
||||
os.environ.pop("OAUTH_JWT_SECRET_KEY", None)
|
||||
|
||||
client_registry._client_registry = None
|
||||
token_manager._token_manager = None
|
||||
storage._storage = None
|
||||
server._oauth_server = None
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def registered_client(temp_storage):
|
||||
"""Create a registered OAuth client and return (client_id, client_secret)."""
|
||||
from core.oauth import get_client_registry
|
||||
|
||||
registry = get_client_registry()
|
||||
client_id, client_secret = registry.create_client(
|
||||
client_name="Test Revoke Client",
|
||||
redirect_uris=["http://localhost:3000/callback"],
|
||||
)
|
||||
return client_id, client_secret
|
||||
|
||||
|
||||
async def _call_oauth_revoke(request):
|
||||
"""Import and call the oauth_revoke endpoint from server.py."""
|
||||
from server import oauth_revoke
|
||||
|
||||
return await oauth_revoke(request)
|
||||
|
||||
|
||||
@pytest.mark.unit
|
||||
class TestOAuthRevoke:
|
||||
"""Tests for the /oauth/revoke endpoint (RFC 7009)."""
|
||||
|
||||
async def test_valid_token_revocation_returns_200(self, registered_client):
|
||||
"""Valid token revocation returns 200 with empty body."""
|
||||
client_id, client_secret = registered_client
|
||||
|
||||
request = _make_request(
|
||||
body={
|
||||
"client_id": client_id,
|
||||
"client_secret": client_secret,
|
||||
"token": "rt_some_refresh_token",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 200
|
||||
data = json.loads(response.body)
|
||||
assert data == {}
|
||||
|
||||
async def test_missing_token_returns_200(self, registered_client):
|
||||
"""Per RFC 7009, missing token returns 200 (no-op)."""
|
||||
client_id, client_secret = registered_client
|
||||
|
||||
request = _make_request(
|
||||
body={
|
||||
"client_id": client_id,
|
||||
"client_secret": client_secret,
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 200
|
||||
data = json.loads(response.body)
|
||||
assert data == {}
|
||||
|
||||
async def test_invalid_client_credentials_returns_401(self, registered_client):
|
||||
"""Invalid client credentials return 401 with invalid_client error."""
|
||||
client_id, _ = registered_client
|
||||
|
||||
request = _make_request(
|
||||
body={
|
||||
"client_id": client_id,
|
||||
"client_secret": "wrong_secret",
|
||||
"token": "rt_some_token",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 401
|
||||
data = json.loads(response.body)
|
||||
assert data["error"] == "invalid_client"
|
||||
assert "Invalid client credentials" in data["error_description"]
|
||||
|
||||
async def test_missing_client_credentials_returns_401(self, temp_storage):
|
||||
"""Missing client credentials return 401 with invalid_client error."""
|
||||
request = _make_request(
|
||||
body={
|
||||
"token": "rt_some_token",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 401
|
||||
data = json.loads(response.body)
|
||||
assert data["error"] == "invalid_client"
|
||||
assert "Client authentication required" in data["error_description"]
|
||||
|
||||
async def test_revocation_with_refresh_token_hint(self, registered_client):
|
||||
"""Revocation with token_type_hint=refresh_token works correctly."""
|
||||
client_id, client_secret = registered_client
|
||||
|
||||
request = _make_request(
|
||||
body={
|
||||
"client_id": client_id,
|
||||
"client_secret": client_secret,
|
||||
"token": "some_token_value",
|
||||
"token_type_hint": "refresh_token",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 200
|
||||
data = json.loads(response.body)
|
||||
assert data == {}
|
||||
|
||||
async def test_unknown_token_returns_200(self, registered_client):
|
||||
"""Per RFC 7009, revoking an unknown/invalid token still returns 200."""
|
||||
client_id, client_secret = registered_client
|
||||
|
||||
request = _make_request(
|
||||
body={
|
||||
"client_id": client_id,
|
||||
"client_secret": client_secret,
|
||||
"token": "completely_nonexistent_token_xyz",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 200
|
||||
data = json.loads(response.body)
|
||||
assert data == {}
|
||||
|
||||
async def test_basic_auth_works_for_revocation(self, registered_client):
|
||||
"""Client authentication via Basic Auth header works on the revoke endpoint."""
|
||||
client_id, client_secret = registered_client
|
||||
|
||||
request = _make_request(
|
||||
headers={"authorization": _encode_basic(client_id, client_secret)},
|
||||
body={
|
||||
"token": "rt_some_refresh_token",
|
||||
},
|
||||
)
|
||||
|
||||
response = await _call_oauth_revoke(request)
|
||||
|
||||
assert response.status_code == 200
|
||||
data = json.loads(response.body)
|
||||
assert data == {}
|
||||
|
||||
async def test_metadata_includes_revocation_endpoint(self, temp_storage):
|
||||
"""OAuth metadata includes the revocation_endpoint field."""
|
||||
from server import oauth_metadata
|
||||
|
||||
# Create a mock request with a host header
|
||||
request = AsyncMock()
|
||||
request.headers = MagicMock()
|
||||
_headers = {"host": "localhost:8000"}
|
||||
request.headers.get = lambda key, default="": _headers.get(key.lower(), default)
|
||||
request.url = MagicMock()
|
||||
request.url.scheme = "http"
|
||||
|
||||
response = await oauth_metadata(request)
|
||||
|
||||
data = json.loads(response.body)
|
||||
assert "revocation_endpoint" in data
|
||||
assert data["revocation_endpoint"].endswith("/oauth/revoke")
|
||||
assert "client_secret_basic" in data.get("revocation_endpoint_auth_methods_supported", [])
|
||||
Reference in New Issue
Block a user