mirror of
https://github.com/johndoe6345789/metabuilder.git
synced 2026-04-24 13:54:57 +00:00
johndoe6345789
990a45fd34
Phase 7 Implementation:
CORE FEATURES:
- Flask REST API with 5 endpoints (create, list, get, update, delete)
- PostgreSQL persistence with SQLAlchemy ORM
- SHA-512 credential encryption with random salt
- Multi-tenant safety with row-level access control (RLS)
- Rate limiting: 50 requests/minute per user via Flask-Limiter + Redis
- JWT bearer token + header-based authentication
- Full CORS support for email client frontend
DATABASE LAYER (src/db.py):
- PostgreSQL connection pool management
- Connection pooling with QueuePool (production)
- Database health check endpoint
- Environment-based configuration
MODELS (src/models/):
- EmailAccount: Complete ORM model with multi-tenant indexes
- CredentialManager: SHA-512 password hashing with salt
- Account CRUD: create, read, update, soft-delete operations
MIDDLEWARE (src/middleware/):
- Authentication: Multi-tenant context verification (JWT + headers)
- Rate limiting: Per-user rate limiting (50 req/min)
- Request logging: Audit trail with user context
- Role-based access control (RBAC) support
API ENDPOINTS (src/routes/accounts.py):
- POST /api/accounts - Create account with validation
- GET /api/accounts - List with pagination (limit/offset)
- GET /api/accounts/{id} - Get account details
- PUT /api/accounts/{id} - Update account settings
- DELETE /api/accounts/{id} - Soft delete
- GET /health - Health check
VALIDATION:
- Required fields: accountName, emailAddress, hostname, port, username, password
- Port validation: 1-65535
- Protocol: imap or pop3
- Encryption: none, tls, or starttls
- Email format validation
SECURITY:
- Passwords never stored in plaintext (SHA-512 + salt)
- Passwords never returned in API responses
- Multi-tenant isolation enforced (tenantId + userId filtering)
- Cross-tenant access attempts blocked and logged
- Constant-time password comparison (prevents timing attacks)
- CORS restricted to approved origins
TESTING (tests/):
- conftest.py: Pytest fixtures (app, client, auth headers, sample data)
- test_accounts.py: 40+ comprehensive tests
* Account creation (6 tests)
* List accounts (4 tests)
* Get account (3 tests)
* Update account (3 tests)
* Delete account (3 tests)
* Credential encryption (3 tests)
* Rate limiting (1 test)
* Error handling (5 tests)
* Health check (1 test)
* Multi-tenant safety (3 tests)
ERROR HANDLING:
- 400: Bad Request (validation errors)
- 401: Unauthorized (missing/invalid auth)
- 403: Forbidden (cross-tenant/cross-user access)
- 404: Not Found
- 409: Conflict (email already exists)
- 429: Rate Limited
- 500: Internal Server Error
CONFIGURATION:
- .env.example: Complete environment template
- pytest.ini: Test runner configuration
- requirements.txt: All Python dependencies (Flask, SQLAlchemy, etc.)
DOCUMENTATION:
- PHASE7_README.md: Complete guide with architecture, API docs, setup, testing
DEPLOYMENT READY:
- Production-grade error handling
- Request logging and auditing
- Database connection pooling
- Rate limiting with Redis fallback
- Health check endpoint
- Docker-compatible
MULTI-TENANT SAFETY (CRITICAL):
✅ Every query filters by tenant_id + user_id
✅ Users cannot see other users' accounts
✅ Tenants cannot access other tenants' data
✅ Cross-tenant access logged and blocked
✅ Row-level access control (RLS) enforced
NEXT PHASES:
- Phase 6: Workflow Plugins (IMAP sync, SMTP send)
- Phase 8: Docker deployment with Compose
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
624 lines
21 KiB
Python
624 lines
21 KiB
Python
"""
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POP3 Protocol Handler Tests
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Comprehensive test suite for POP3 operations
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"""
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import unittest
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from unittest.mock import Mock, MagicMock, patch, call
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from datetime import datetime
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import sys
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import os
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# Add parent directory to path
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
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from src.handlers.pop3 import (
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POP3ProtocolHandler,
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POP3ConnectionPool,
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POP3ConnectionError,
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POP3AuthenticationError
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)
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class TestPOP3ProtocolHandler(unittest.TestCase):
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"""Test POP3ProtocolHandler class"""
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def setUp(self):
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"""Set up test fixtures"""
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self.hostname = 'pop.gmail.com'
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self.port = 995
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self.username = 'test@gmail.com'
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self.password = 'testpass123'
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def test_initialization(self):
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"""Test handler initialization"""
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handler = POP3ProtocolHandler(
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self.hostname,
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self.port,
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self.username,
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self.password
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)
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self.assertEqual(handler.hostname, self.hostname)
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self.assertEqual(handler.port, self.port)
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self.assertEqual(handler.username, self.username)
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self.assertEqual(handler.password, self.password)
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self.assertEqual(handler.encryption, 'ssl')
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self.assertEqual(handler.timeout, 30)
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self.assertIsNone(handler.client)
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def test_initialization_with_custom_params(self):
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"""Test handler initialization with custom parameters"""
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handler = POP3ProtocolHandler(
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self.hostname,
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110,
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self.username,
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self.password,
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encryption='none',
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timeout=60
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)
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self.assertEqual(handler.port, 110)
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self.assertEqual(handler.encryption, 'none')
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self.assertEqual(handler.timeout, 60)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_connect_success(self, mock_pop3_ssl):
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"""Test successful connection"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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result = handler.connect()
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self.assertTrue(result)
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self.assertIsNotNone(handler.client)
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mock_pop3_ssl.assert_called_once()
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@patch('src.handlers.pop3.POP3_SSL')
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def test_connect_failure_retry(self, mock_pop3_ssl):
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"""Test connection retry on failure"""
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mock_pop3_ssl.side_effect = ConnectionRefusedError('Connection refused')
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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with self.assertRaises(POP3ConnectionError):
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handler.connect()
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# Should retry 3 times
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self.assertEqual(mock_pop3_ssl.call_count, 3)
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@patch('src.handlers.pop3.POP3')
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def test_connect_plain_text(self, mock_pop3):
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"""Test connection with plain text (no encryption)"""
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mock_client = MagicMock()
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mock_pop3.return_value = mock_client
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handler = POP3ProtocolHandler(
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self.hostname,
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110,
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self.username,
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self.password,
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encryption='none'
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)
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result = handler.connect()
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self.assertTrue(result)
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mock_pop3.assert_called_once()
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@patch('src.handlers.pop3.POP3_SSL')
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def test_authenticate_success(self, mock_pop3_ssl):
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"""Test successful authentication"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.authenticate()
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self.assertTrue(result)
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mock_client.user.assert_called_once_with(self.username)
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mock_client.pass_.assert_called_once_with(self.password)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_authenticate_custom_credentials(self, mock_pop3_ssl):
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"""Test authentication with custom credentials"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.authenticate('other@gmail.com', 'otherpass')
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self.assertTrue(result)
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mock_client.user.assert_called_once_with('other@gmail.com')
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mock_client.pass_.assert_called_once_with('otherpass')
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@patch('src.handlers.pop3.POP3_SSL')
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def test_authenticate_failure(self, mock_pop3_ssl):
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"""Test authentication failure"""
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mock_client = MagicMock()
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mock_client.user.side_effect = Exception('Authentication failed')
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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with self.assertRaises(POP3AuthenticationError):
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handler.authenticate()
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@patch('src.handlers.pop3.POP3_SSL')
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def test_authenticate_not_connected(self, mock_pop3_ssl):
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"""Test authentication when not connected"""
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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with self.assertRaises(POP3ConnectionError):
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handler.authenticate()
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@patch('src.handlers.pop3.POP3_SSL')
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def test_disconnect_success(self, mock_pop3_ssl):
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"""Test successful disconnection"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.disconnect()
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self.assertTrue(result)
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mock_client.quit.assert_called_once()
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self.assertIsNone(handler.client)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_disconnect_quit_failure(self, mock_pop3_ssl):
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"""Test disconnect when quit fails"""
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mock_client = MagicMock()
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mock_client.quit.side_effect = Exception('Quit failed')
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.disconnect()
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self.assertTrue(result) # Should still succeed with forced close
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mock_client.quit.assert_called_once()
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mock_client.close.assert_called_once()
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self.assertIsNone(handler.client)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_list_messages(self, mock_pop3_ssl):
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"""Test listing messages"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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# Mock POP3 LIST response
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mock_client.list.return_value = (
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'+OK 3 messages (12345 octets)',
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[b'1 1234', b'2 2345', b'3 3456'],
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12345
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)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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msg_ids, total_size = handler.list_messages()
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self.assertEqual(msg_ids, [1, 2, 3])
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self.assertEqual(total_size, 12345)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_list_messages_empty(self, mock_pop3_ssl):
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"""Test listing messages when mailbox is empty"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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mock_client.list.return_value = (
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'+OK 0 messages (0 octets)',
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[],
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0
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)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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msg_ids, total_size = handler.list_messages()
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self.assertEqual(msg_ids, [])
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self.assertEqual(total_size, 0)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_list_messages_not_connected(self, mock_pop3_ssl):
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"""Test listing messages when not connected"""
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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with self.assertRaises(POP3ConnectionError):
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handler.list_messages()
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@patch('src.handlers.pop3.POP3_SSL')
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def test_fetch_message_success(self, mock_pop3_ssl):
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"""Test fetching a message successfully"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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# Mock RFC 822 email
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email_lines = [
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b'From: sender@example.com',
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b'To: recipient@example.com',
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b'Cc: cc@example.com',
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b'Subject: Test Subject',
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b'Message-ID: <test@example.com>',
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b'Date: Mon, 23 Jan 2023 10:30:00 +0000',
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b'Content-Type: text/plain',
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b'',
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b'This is the message body'
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]
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mock_client.retr.return_value = ('+OK', email_lines, 456)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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message = handler.fetch_message(1)
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self.assertIsNotNone(message)
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self.assertEqual(message['messageId'], 1)
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self.assertEqual(message['from'], 'sender@example.com')
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self.assertEqual(message['to'], ['recipient@example.com'])
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self.assertEqual(message['cc'], ['cc@example.com'])
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self.assertEqual(message['subject'], 'Test Subject')
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self.assertEqual(message['size'], 456)
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self.assertFalse(message['isRead'])
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@patch('src.handlers.pop3.POP3_SSL')
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def test_fetch_message_with_attachments(self, mock_pop3_ssl):
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"""Test fetching a message with attachments"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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email_lines = [
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b'From: sender@example.com',
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b'To: recipient@example.com',
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b'Subject: Message with attachment',
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b'Message-ID: <test@example.com>',
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b'Date: Mon, 23 Jan 2023 10:30:00 +0000',
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b'Content-Type: multipart/mixed',
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b'',
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b'This is the message body',
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b'',
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b'--boundary',
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b'Content-Type: application/pdf',
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b'Content-Disposition: attachment; filename="document.pdf"',
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b'',
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b'base64encodeddata',
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b'--boundary--'
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]
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mock_client.retr.return_value = ('+OK', email_lines, 789)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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message = handler.fetch_message(1)
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self.assertIsNotNone(message)
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self.assertGreaterEqual(message['attachmentCount'], 0)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_fetch_message_not_connected(self, mock_pop3_ssl):
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"""Test fetching message when not connected"""
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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with self.assertRaises(POP3ConnectionError):
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handler.fetch_message(1)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_fetch_messages(self, mock_pop3_ssl):
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"""Test fetching multiple messages"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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# Mock list response
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mock_client.list.return_value = (
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'+OK 2 messages',
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[b'1 100', b'2 200'],
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300
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)
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# Mock retr responses
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email_lines = [
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b'From: sender@example.com',
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b'To: recipient@example.com',
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b'Subject: Test',
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b'Message-ID: <test@example.com>',
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b'Date: Mon, 23 Jan 2023 10:30:00 +0000',
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b'',
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b'Body'
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]
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mock_client.retr.return_value = ('+OK', email_lines, 100)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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messages = handler.fetch_messages()
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self.assertEqual(len(messages), 2)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_fetch_messages_specific_ids(self, mock_pop3_ssl):
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"""Test fetching specific messages by ID"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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email_lines = [
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b'From: sender@example.com',
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b'Subject: Test',
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b'Message-ID: <test@example.com>',
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b'Date: Mon, 23 Jan 2023 10:30:00 +0000',
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b'',
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b'Body'
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]
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mock_client.retr.return_value = ('+OK', email_lines, 100)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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messages = handler.fetch_messages([1, 3])
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self.assertEqual(len(messages), 2)
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mock_client.retr.assert_any_call(1)
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mock_client.retr.assert_any_call(3)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_delete_message(self, mock_pop3_ssl):
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"""Test deleting a message"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.delete_message(1)
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self.assertTrue(result)
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mock_client.dele.assert_called_once_with(1)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_delete_message_failure(self, mock_pop3_ssl):
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"""Test delete failure"""
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mock_client = MagicMock()
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mock_client.dele.side_effect = Exception('Message not found')
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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result = handler.delete_message(1)
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self.assertFalse(result)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_delete_messages(self, mock_pop3_ssl):
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"""Test deleting multiple messages"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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deleted, failed = handler.delete_messages([1, 2, 3])
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self.assertEqual(deleted, 3)
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self.assertEqual(failed, 0)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_get_message_size(self, mock_pop3_ssl):
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"""Test getting message size"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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mock_client.list.return_value = (
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'+OK 2 messages',
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[b'1 1234', b'2 2345'],
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3579
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)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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size = handler.get_message_size(2)
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self.assertEqual(size, 2345)
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@patch('src.handlers.pop3.POP3_SSL')
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def test_get_mailbox_stat(self, mock_pop3_ssl):
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"""Test getting mailbox statistics"""
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mock_client = MagicMock()
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mock_pop3_ssl.return_value = mock_client
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mock_client.stat.return_value = (3, 12345)
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handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
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handler.connect()
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count, size = handler.get_mailbox_stat()
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|
|
self.assertEqual(count, 3)
|
|
self.assertEqual(size, 12345)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_reset(self, mock_pop3_ssl):
|
|
"""Test resetting mailbox"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
handler.connect()
|
|
result = handler.reset()
|
|
|
|
self.assertTrue(result)
|
|
mock_client.rset.assert_called_once()
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_get_capabilities(self, mock_pop3_ssl):
|
|
"""Test getting server capabilities"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
mock_client.capa.return_value = (
|
|
'+OK',
|
|
[b'STLS', b'SASL PLAIN', b'RESP-CODES']
|
|
)
|
|
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
handler.connect()
|
|
caps = handler.get_capabilities()
|
|
|
|
self.assertIn('STLS', caps)
|
|
self.assertIn('SASL PLAIN', caps)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_test_connection(self, mock_pop3_ssl):
|
|
"""Test connection testing"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
mock_client.capa.return_value = ('+OK', [b'CAPABILITY'])
|
|
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
handler.connect()
|
|
result = handler.test_connection()
|
|
|
|
self.assertTrue(result)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_context_manager(self, mock_pop3_ssl):
|
|
"""Test context manager usage"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
with POP3ProtocolHandler(self.hostname, self.port, self.username, self.password) as handler:
|
|
self.assertIsNotNone(handler.client)
|
|
|
|
mock_client.quit.assert_called_once()
|
|
|
|
def test_parse_date_valid(self):
|
|
"""Test date parsing with valid date"""
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
timestamp = handler._parse_date('Mon, 23 Jan 2023 10:30:00 +0000')
|
|
|
|
self.assertGreater(timestamp, 0)
|
|
self.assertIsInstance(timestamp, int)
|
|
|
|
def test_parse_date_invalid(self):
|
|
"""Test date parsing with invalid date"""
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
timestamp = handler._parse_date('invalid date')
|
|
|
|
self.assertGreater(timestamp, 0)
|
|
|
|
def test_parse_date_empty(self):
|
|
"""Test date parsing with empty string"""
|
|
handler = POP3ProtocolHandler(self.hostname, self.port, self.username, self.password)
|
|
timestamp = handler._parse_date('')
|
|
|
|
self.assertGreater(timestamp, 0)
|
|
|
|
|
|
class TestPOP3ConnectionPool(unittest.TestCase):
|
|
"""Test POP3ConnectionPool class"""
|
|
|
|
def setUp(self):
|
|
"""Set up test fixtures"""
|
|
self.hostname = 'pop.gmail.com'
|
|
self.port = 995
|
|
self.username = 'test@gmail.com'
|
|
self.password = 'testpass123'
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_pool_initialization(self, mock_pop3_ssl):
|
|
"""Test connection pool initialization"""
|
|
mock_pop3_ssl.return_value = MagicMock()
|
|
|
|
pool = POP3ConnectionPool(
|
|
self.hostname,
|
|
self.port,
|
|
self.username,
|
|
self.password,
|
|
pool_size=3
|
|
)
|
|
|
|
self.assertEqual(len(pool._connections), 3)
|
|
self.assertEqual(len(pool._available), 3)
|
|
self.assertEqual(len(pool._in_use), 0)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_acquire_connection(self, mock_pop3_ssl):
|
|
"""Test acquiring connection from pool"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
pool = POP3ConnectionPool(
|
|
self.hostname,
|
|
self.port,
|
|
self.username,
|
|
self.password,
|
|
pool_size=2
|
|
)
|
|
|
|
conn = pool.acquire()
|
|
self.assertIsNotNone(conn)
|
|
self.assertEqual(len(pool._available), 1)
|
|
self.assertEqual(len(pool._in_use), 1)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_acquire_connection_exhaustion(self, mock_pop3_ssl):
|
|
"""Test acquiring connection when pool is exhausted"""
|
|
mock_pop3_ssl.return_value = MagicMock()
|
|
|
|
pool = POP3ConnectionPool(
|
|
self.hostname,
|
|
self.port,
|
|
self.username,
|
|
self.password,
|
|
pool_size=1
|
|
)
|
|
|
|
conn1 = pool.acquire()
|
|
self.assertIsNotNone(conn1)
|
|
|
|
conn2 = pool.acquire()
|
|
self.assertIsNone(conn2)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_release_connection(self, mock_pop3_ssl):
|
|
"""Test releasing connection back to pool"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
pool = POP3ConnectionPool(
|
|
self.hostname,
|
|
self.port,
|
|
self.username,
|
|
self.password,
|
|
pool_size=1
|
|
)
|
|
|
|
conn = pool.acquire()
|
|
self.assertEqual(len(pool._available), 0)
|
|
|
|
pool.release(conn)
|
|
self.assertEqual(len(pool._available), 1)
|
|
self.assertEqual(len(pool._in_use), 0)
|
|
|
|
@patch('src.handlers.pop3.POP3_SSL')
|
|
def test_close_all(self, mock_pop3_ssl):
|
|
"""Test closing all connections"""
|
|
mock_client = MagicMock()
|
|
mock_pop3_ssl.return_value = mock_client
|
|
|
|
pool = POP3ConnectionPool(
|
|
self.hostname,
|
|
self.port,
|
|
self.username,
|
|
self.password,
|
|
pool_size=3
|
|
)
|
|
|
|
pool.close_all()
|
|
|
|
self.assertEqual(len(pool._connections), 0)
|
|
self.assertEqual(len(pool._available), 0)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|