feat(phase-3): implement token endpoint and OAuth 2.0 flow
Phase 3 Implementation: - Token service with secure token generation and validation - Token endpoint (POST /token) with OAuth 2.0 compliance - Database migration 003 for tokens table - Authorization code validation and single-use enforcement Phase 1 Updates: - Enhanced CodeStore to support dict values with JSON serialization - Maintains backward compatibility Phase 2 Updates: - Authorization codes now include PKCE fields, used flag, timestamps - Complete metadata structure for token exchange Security: - 256-bit cryptographically secure tokens (secrets.token_urlsafe) - SHA-256 hashed storage (no plaintext) - Constant-time comparison for validation - Single-use code enforcement with replay detection Testing: - 226 tests passing (100%) - 87.27% coverage (exceeds 80% requirement) - OAuth 2.0 compliance verified This completes the v1.0.0 MVP with full IndieAuth authorization code flow. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
@@ -166,11 +166,11 @@ class TestConfigValidate:
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Config.validate()
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def test_validate_token_expiry_negative(self, monkeypatch):
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"""Test validation fails when TOKEN_EXPIRY <= 0."""
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"""Test validation fails when TOKEN_EXPIRY < 300."""
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monkeypatch.setenv("GONDULF_SECRET_KEY", "a" * 32)
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Config.load()
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Config.TOKEN_EXPIRY = -1
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with pytest.raises(ConfigurationError, match="must be positive"):
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with pytest.raises(ConfigurationError, match="must be at least 300 seconds"):
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Config.validate()
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def test_validate_code_expiry_zero(self, monkeypatch):
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@@ -175,15 +175,15 @@ class TestDatabaseMigrations:
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engine = db.get_engine()
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with engine.connect() as conn:
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# Check migrations were recorded correctly (001 and 002)
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# Check migrations were recorded correctly (001, 002, and 003)
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result = conn.execute(text("SELECT COUNT(*) FROM migrations"))
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count = result.fetchone()[0]
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assert count == 2
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assert count == 3
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# Verify both migrations are present
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# Verify all migrations are present
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result = conn.execute(text("SELECT version FROM migrations ORDER BY version"))
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versions = [row[0] for row in result]
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assert versions == [1, 2]
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assert versions == [1, 2, 3]
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def test_initialize_full_setup(self):
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"""Test initialize performs full database setup."""
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@@ -216,3 +216,65 @@ class TestCodeStore:
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assert store.verify("test@example.com", "old_code") is False
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assert store.verify("test@example.com", "new_code") is True
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def test_store_dict_value(self):
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"""Test storing dict values for authorization code metadata."""
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store = CodeStore(ttl_seconds=60)
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metadata = {
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"client_id": "https://client.example.com",
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"redirect_uri": "https://client.example.com/callback",
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"state": "xyz123",
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"me": "https://user.example.com",
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"scope": "profile",
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"code_challenge": "abc123",
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"code_challenge_method": "S256",
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"created_at": 1234567890,
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"expires_at": 1234568490,
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"used": False
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}
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store.store("auth_code_123", metadata)
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retrieved = store.get("auth_code_123")
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assert retrieved is not None
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assert isinstance(retrieved, dict)
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assert retrieved["client_id"] == "https://client.example.com"
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assert retrieved["used"] is False
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def test_store_dict_with_custom_ttl(self):
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"""Test storing dict values with custom TTL."""
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store = CodeStore(ttl_seconds=60)
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metadata = {"client_id": "https://client.example.com", "used": False}
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store.store("auth_code_123", metadata, ttl=120)
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retrieved = store.get("auth_code_123")
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assert retrieved is not None
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assert isinstance(retrieved, dict)
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def test_dict_value_expiration(self):
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"""Test dict values expire correctly."""
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store = CodeStore(ttl_seconds=1)
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metadata = {"client_id": "https://client.example.com"}
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store.store("auth_code_123", metadata)
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# Wait for expiration
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time.sleep(1.1)
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assert store.get("auth_code_123") is None
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def test_delete_dict_value(self):
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"""Test deleting dict values."""
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store = CodeStore(ttl_seconds=60)
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metadata = {"client_id": "https://client.example.com"}
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store.store("auth_code_123", metadata)
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assert store.get("auth_code_123") is not None
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store.delete("auth_code_123")
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assert store.get("auth_code_123") is None
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315
tests/unit/test_token_endpoint.py
Normal file
315
tests/unit/test_token_endpoint.py
Normal file
@@ -0,0 +1,315 @@
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"""
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Unit tests for Token Endpoint.
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Tests token exchange endpoint including validation, error handling, and security.
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"""
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import os
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import pytest
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from fastapi.testclient import TestClient
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from gondulf.database.connection import Database
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from gondulf.services.token_service import TokenService
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from gondulf.storage import CodeStore
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@pytest.fixture(scope="function")
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def test_config(monkeypatch):
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"""Configure test environment."""
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# Set required environment variables
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monkeypatch.setenv("GONDULF_SECRET_KEY", "test_secret_key_" + "x" * 32)
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monkeypatch.setenv("GONDULF_DATABASE_URL", "sqlite:///:memory:")
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# Import after environment is set
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from gondulf.config import Config
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Config.load()
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Config.validate()
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return Config
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@pytest.fixture
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def test_database(tmp_path):
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"""Create test database."""
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db_path = tmp_path / "test.db"
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db = Database(f"sqlite:///{db_path}")
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db.ensure_database_directory()
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db.run_migrations()
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return db
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@pytest.fixture
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def test_code_storage():
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"""Create test code storage."""
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return CodeStore(ttl_seconds=600)
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@pytest.fixture
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def test_token_service(test_database):
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"""Create test token service."""
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return TokenService(
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database=test_database,
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token_length=32,
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token_ttl=3600
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)
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@pytest.fixture
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def client(test_config, test_database, test_code_storage, test_token_service):
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"""Create test client with dependency overrides."""
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# Import app after config is set
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from gondulf.dependencies import get_code_storage, get_database, get_token_service
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from gondulf.main import app
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app.dependency_overrides[get_database] = lambda: test_database
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app.dependency_overrides[get_code_storage] = lambda: test_code_storage
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app.dependency_overrides[get_token_service] = lambda: test_token_service
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yield TestClient(app)
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app.dependency_overrides.clear()
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@pytest.fixture
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def valid_auth_code(test_code_storage):
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"""Create a valid authorization code."""
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code = "test_auth_code_12345"
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metadata = {
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"client_id": "https://client.example.com",
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"redirect_uri": "https://client.example.com/callback",
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"state": "xyz123",
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"me": "https://user.example.com",
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"scope": "",
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"code_challenge": "abc123",
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"code_challenge_method": "S256",
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"created_at": 1234567890,
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"expires_at": 1234568490,
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"used": False
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}
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test_code_storage.store(f"authz:{code}", metadata)
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return code, metadata
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class TestTokenExchangeSuccess:
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"""Tests for successful token exchange."""
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def test_token_exchange_success(self, client, valid_auth_code):
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"""Test successful token exchange returns access token."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 200
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data = response.json()
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assert "access_token" in data
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assert data["token_type"] == "Bearer"
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assert data["me"] == metadata["me"]
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assert data["scope"] == metadata["scope"]
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def test_token_exchange_response_format(self, client, valid_auth_code):
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"""Test token response matches OAuth 2.0 format."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 200
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data = response.json()
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# Required fields per OAuth 2.0
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assert "access_token" in data
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assert "token_type" in data
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assert "me" in data
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assert isinstance(data["access_token"], str)
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assert len(data["access_token"]) == 43 # base64url encoded
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def test_token_exchange_cache_headers(self, client, valid_auth_code):
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"""Test OAuth 2.0 cache headers are set."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.headers["Cache-Control"] == "no-store"
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assert response.headers["Pragma"] == "no-cache"
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def test_token_exchange_deletes_code(self, client, valid_auth_code, test_code_storage):
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"""Test authorization code is deleted after exchange."""
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code, metadata = valid_auth_code
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client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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# Code should be deleted
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assert test_code_storage.get(f"authz:{code}") is None
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class TestTokenExchangeErrors:
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"""Tests for error conditions."""
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def test_invalid_grant_type(self, client, valid_auth_code):
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"""Test unsupported grant_type returns error."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "password", # Wrong grant type
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 400
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data = response.json()
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assert data["detail"]["error"] == "unsupported_grant_type"
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def test_code_not_found(self, client):
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"""Test invalid authorization code returns error."""
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": "invalid_code_123",
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"client_id": "https://client.example.com",
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"redirect_uri": "https://client.example.com/callback"
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}
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)
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assert response.status_code == 400
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data = response.json()
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assert data["detail"]["error"] == "invalid_grant"
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def test_client_id_mismatch(self, client, valid_auth_code):
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"""Test client_id mismatch returns error."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": "https://wrong-client.example.com", # Wrong client
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 400
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data = response.json()
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assert data["detail"]["error"] == "invalid_client"
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def test_redirect_uri_mismatch(self, client, valid_auth_code):
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"""Test redirect_uri mismatch returns error."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": "https://wrong-uri.example.com/callback" # Wrong URI
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}
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)
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assert response.status_code == 400
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data = response.json()
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assert data["detail"]["error"] == "invalid_grant"
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def test_code_replay_prevention(self, client, valid_auth_code, test_code_storage):
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"""Test authorization code cannot be used twice."""
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code, metadata = valid_auth_code
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# Mark code as used
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metadata["used"] = True
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test_code_storage.store(f"authz:{code}", metadata)
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 400
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data = response.json()
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assert data["detail"]["error"] == "invalid_grant"
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class TestPKCEHandling:
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"""Tests for PKCE parameter handling."""
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def test_code_verifier_accepted_but_not_validated(self, client, valid_auth_code):
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"""Test code_verifier is accepted but not validated in v1.0.0."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"],
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"code_verifier": "some_verifier_string"
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}
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)
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# Should still succeed (PKCE not validated in v1.0.0)
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assert response.status_code == 200
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class TestSecurityValidation:
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"""Tests for security validations."""
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def test_token_generated_via_service(self, client, valid_auth_code, test_token_service):
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"""Test token is generated through token service."""
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code, metadata = valid_auth_code
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response = client.post(
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"/token",
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data={
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"grant_type": "authorization_code",
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"code": code,
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"client_id": metadata["client_id"],
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"redirect_uri": metadata["redirect_uri"]
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}
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)
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assert response.status_code == 200
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data = response.json()
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# Validate token was actually stored
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token_metadata = test_token_service.validate_token(data["access_token"])
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assert token_metadata is not None
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assert token_metadata["me"] == metadata["me"]
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340
tests/unit/test_token_service.py
Normal file
340
tests/unit/test_token_service.py
Normal file
@@ -0,0 +1,340 @@
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"""
|
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Unit tests for Token Service.
|
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Tests token generation, validation, revocation, and cleanup.
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"""
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import hashlib
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import time
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from datetime import datetime, timedelta
|
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import pytest
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from sqlalchemy import text
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|
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from gondulf.database.connection import Database
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from gondulf.services.token_service import TokenService
|
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|
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|
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@pytest.fixture
|
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def test_database(tmp_path):
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"""Create test database with migrations."""
|
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db_path = tmp_path / "test.db"
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db = Database(f"sqlite:///{db_path}")
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db.ensure_database_directory()
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db.run_migrations()
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return db
|
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|
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|
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@pytest.fixture
|
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def token_service(test_database):
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"""Create token service with test database."""
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return TokenService(
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database=test_database,
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token_length=32,
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token_ttl=3600
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||||
)
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||||
|
||||
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class TestTokenGeneration:
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"""Tests for token generation."""
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||||
|
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def test_generate_token_returns_string(self, token_service):
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"""Test that generate_token returns a string token."""
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token = token_service.generate_token(
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me="https://example.com",
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||||
client_id="https://client.example.com",
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scope=""
|
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)
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assert isinstance(token, str)
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assert len(token) == 43 # 32 bytes base64url = 43 chars
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def test_generate_token_stores_hash(self, token_service, test_database):
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"""Test that token is stored as SHA-256 hash, not plaintext."""
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token = token_service.generate_token(
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me="https://example.com",
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client_id="https://client.example.com",
|
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scope=""
|
||||
)
|
||||
|
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token_hash = hashlib.sha256(token.encode('utf-8')).hexdigest()
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|
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engine = test_database.get_engine()
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with engine.connect() as conn:
|
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result = conn.execute(
|
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text("SELECT token_hash FROM tokens WHERE token_hash = :hash"),
|
||||
{"hash": token_hash}
|
||||
).fetchone()
|
||||
|
||||
assert result is not None
|
||||
assert result[0] == token_hash
|
||||
|
||||
def test_generate_token_stores_metadata(self, token_service, test_database):
|
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"""Test that token metadata is stored correctly."""
|
||||
me = "https://example.com"
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||||
client_id = "https://client.example.com"
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||||
scope = "profile"
|
||||
|
||||
token = token_service.generate_token(me=me, client_id=client_id, scope=scope)
|
||||
token_hash = hashlib.sha256(token.encode('utf-8')).hexdigest()
|
||||
|
||||
engine = test_database.get_engine()
|
||||
with engine.connect() as conn:
|
||||
result = conn.execute(
|
||||
text("SELECT me, client_id, scope FROM tokens WHERE token_hash = :hash"),
|
||||
{"hash": token_hash}
|
||||
).fetchone()
|
||||
|
||||
assert result is not None
|
||||
assert result[0] == me
|
||||
assert result[1] == client_id
|
||||
assert result[2] == scope
|
||||
|
||||
def test_generate_token_sets_expiration(self, token_service, test_database):
|
||||
"""Test that token expiration is calculated correctly."""
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
token_hash = hashlib.sha256(token.encode('utf-8')).hexdigest()
|
||||
|
||||
engine = test_database.get_engine()
|
||||
with engine.connect() as conn:
|
||||
result = conn.execute(
|
||||
text("SELECT issued_at, expires_at FROM tokens WHERE token_hash = :hash"),
|
||||
{"hash": token_hash}
|
||||
).fetchone()
|
||||
|
||||
issued_at = datetime.fromisoformat(result[0])
|
||||
expires_at = datetime.fromisoformat(result[1])
|
||||
|
||||
# Should be ~3600 seconds apart
|
||||
time_diff = (expires_at - issued_at).total_seconds()
|
||||
assert 3590 < time_diff < 3610 # Allow 10 second variance
|
||||
|
||||
def test_generate_token_is_random(self, token_service):
|
||||
"""Test that generated tokens are cryptographically random."""
|
||||
tokens = set()
|
||||
for _ in range(100):
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
tokens.add(token)
|
||||
|
||||
# All 100 tokens should be unique
|
||||
assert len(tokens) == 100
|
||||
|
||||
|
||||
class TestTokenValidation:
|
||||
"""Tests for token validation."""
|
||||
|
||||
def test_validate_token_success(self, token_service):
|
||||
"""Test validating a valid token returns metadata."""
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope="profile"
|
||||
)
|
||||
|
||||
metadata = token_service.validate_token(token)
|
||||
|
||||
assert metadata is not None
|
||||
assert metadata['me'] == "https://example.com"
|
||||
assert metadata['client_id'] == "https://client.example.com"
|
||||
assert metadata['scope'] == "profile"
|
||||
|
||||
def test_validate_token_not_found(self, token_service):
|
||||
"""Test validating non-existent token returns None."""
|
||||
fake_token = "invalid_token_12345678901234567890123456"
|
||||
|
||||
metadata = token_service.validate_token(fake_token)
|
||||
|
||||
assert metadata is None
|
||||
|
||||
def test_validate_token_expired(self, token_service, test_database):
|
||||
"""Test validating expired token returns None."""
|
||||
# Generate token with short TTL
|
||||
short_ttl_service = TokenService(
|
||||
database=test_database,
|
||||
token_length=32,
|
||||
token_ttl=1 # 1 second
|
||||
)
|
||||
|
||||
token = short_ttl_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# Wait for expiration
|
||||
time.sleep(1.1)
|
||||
|
||||
metadata = short_ttl_service.validate_token(token)
|
||||
|
||||
assert metadata is None
|
||||
|
||||
def test_validate_token_revoked(self, token_service):
|
||||
"""Test validating revoked token returns None."""
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# Revoke the token
|
||||
token_service.revoke_token(token)
|
||||
|
||||
# Validation should fail
|
||||
metadata = token_service.validate_token(token)
|
||||
|
||||
assert metadata is None
|
||||
|
||||
|
||||
class TestTokenRevocation:
|
||||
"""Tests for token revocation."""
|
||||
|
||||
def test_revoke_token_success(self, token_service):
|
||||
"""Test revoking a valid token returns True."""
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
result = token_service.revoke_token(token)
|
||||
|
||||
assert result is True
|
||||
|
||||
def test_revoke_token_not_found(self, token_service):
|
||||
"""Test revoking non-existent token returns False."""
|
||||
fake_token = "invalid_token_12345678901234567890123456"
|
||||
|
||||
result = token_service.revoke_token(fake_token)
|
||||
|
||||
assert result is False
|
||||
|
||||
def test_revoked_token_fails_validation(self, token_service):
|
||||
"""Test that revoked tokens cannot be validated."""
|
||||
token = token_service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# Revoke and try to validate
|
||||
token_service.revoke_token(token)
|
||||
metadata = token_service.validate_token(token)
|
||||
|
||||
assert metadata is None
|
||||
|
||||
|
||||
class TestTokenCleanup:
|
||||
"""Tests for expired token cleanup."""
|
||||
|
||||
def test_cleanup_expired_tokens(self, test_database):
|
||||
"""Test cleanup deletes expired tokens."""
|
||||
# Create service with short TTL
|
||||
short_ttl_service = TokenService(
|
||||
database=test_database,
|
||||
token_length=32,
|
||||
token_ttl=1 # 1 second
|
||||
)
|
||||
|
||||
# Generate multiple tokens
|
||||
for i in range(3):
|
||||
short_ttl_service.generate_token(
|
||||
me=f"https://example{i}.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# Wait for expiration
|
||||
time.sleep(1.1)
|
||||
|
||||
# Run cleanup
|
||||
deleted_count = short_ttl_service.cleanup_expired_tokens()
|
||||
|
||||
assert deleted_count == 3
|
||||
|
||||
def test_cleanup_preserves_valid_tokens(self, test_database):
|
||||
"""Test cleanup doesn't delete valid tokens."""
|
||||
service = TokenService(
|
||||
database=test_database,
|
||||
token_length=32,
|
||||
token_ttl=3600 # 1 hour
|
||||
)
|
||||
|
||||
# Generate token
|
||||
token = service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# Run cleanup
|
||||
deleted_count = service.cleanup_expired_tokens()
|
||||
|
||||
# No tokens should be deleted
|
||||
assert deleted_count == 0
|
||||
|
||||
# Token should still be valid
|
||||
metadata = service.validate_token(token)
|
||||
assert metadata is not None
|
||||
|
||||
def test_cleanup_empty_database(self, token_service):
|
||||
"""Test cleanup handles empty database gracefully."""
|
||||
deleted_count = token_service.cleanup_expired_tokens()
|
||||
|
||||
assert deleted_count == 0
|
||||
|
||||
|
||||
class TestTokenServiceConfiguration:
|
||||
"""Tests for token service configuration."""
|
||||
|
||||
def test_custom_token_length(self, test_database):
|
||||
"""Test custom token length is respected."""
|
||||
service = TokenService(
|
||||
database=test_database,
|
||||
token_length=16, # Smaller token
|
||||
token_ttl=3600
|
||||
)
|
||||
|
||||
token = service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
|
||||
# 16 bytes base64url = ~22 chars
|
||||
assert len(token) == 22
|
||||
|
||||
def test_custom_ttl(self, test_database):
|
||||
"""Test custom TTL is respected."""
|
||||
service = TokenService(
|
||||
database=test_database,
|
||||
token_length=32,
|
||||
token_ttl=7200 # 2 hours
|
||||
)
|
||||
|
||||
token = service.generate_token(
|
||||
me="https://example.com",
|
||||
client_id="https://client.example.com",
|
||||
scope=""
|
||||
)
|
||||
token_hash = hashlib.sha256(token.encode('utf-8')).hexdigest()
|
||||
|
||||
engine = test_database.get_engine()
|
||||
with engine.connect() as conn:
|
||||
result = conn.execute(
|
||||
text("SELECT issued_at, expires_at FROM tokens WHERE token_hash = :hash"),
|
||||
{"hash": token_hash}
|
||||
).fetchone()
|
||||
|
||||
issued_at = datetime.fromisoformat(result[0])
|
||||
expires_at = datetime.fromisoformat(result[1])
|
||||
|
||||
# Should be ~7200 seconds apart
|
||||
time_diff = (expires_at - issued_at).total_seconds()
|
||||
assert 7190 < time_diff < 7210
|
||||
Reference in New Issue
Block a user