feat: implement comprehensive logging system

- Created src/server/utils/logging.py with structured JSON logging
- Multiple log handlers for app, error, download, security, performance
- Request logging middleware with unique request IDs and timing
- Log rotation and cleanup functionality
- Comprehensive test suite with 19 passing tests
- Context variables for request and user tracking
- Security event logging and download progress tracking

Features:
- JSON formatted logs with consistent structure
- Automatic log rotation (10MB files, 5 backups)
- Request/response logging middleware
- Performance monitoring
- Security auditing
- Download progress tracking
- Old log cleanup functionality

Tests: All 19 tests passing for logging system functionality
This commit is contained in:
2025-10-12 23:33:56 +02:00
parent 8fb4770161
commit 8e885dd40b
3 changed files with 1221 additions and 10 deletions

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tests/unit/test_logging.py Normal file
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"""
Tests for the logging system.
"""
import json
import logging
import tempfile
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
from src.server.utils.logging import (
JSONFormatter,
LoggingConfig,
RequestLoggingMiddleware,
cleanup_old_logs,
get_logger,
init_logging,
log_download_progress,
log_security_event,
request_id_var,
setup_logging,
user_id_var,
)
class TestJSONFormatter:
"""Test the JSON log formatter."""
def test_format_basic_log(self):
"""Test basic log formatting."""
formatter = JSONFormatter()
record = logging.LogRecord(
name="test",
level=logging.INFO,
pathname="/test.py",
lineno=42,
msg="Test message",
args=(),
exc_info=None
)
result = formatter.format(record)
log_data = json.loads(result)
assert log_data["level"] == "INFO"
assert log_data["logger"] == "test"
assert log_data["message"] == "Test message"
assert log_data["module"] == "test"
assert log_data["line"] == 42
assert "timestamp" in log_data
def test_format_with_context(self):
"""Test log formatting with request context."""
request_id_var.set("test-request-123")
user_id_var.set("user-456")
formatter = JSONFormatter()
record = logging.LogRecord(
name="test",
level=logging.INFO,
pathname="/test.py",
lineno=42,
msg="Test message",
args=(),
exc_info=None
)
result = formatter.format(record)
log_data = json.loads(result)
assert log_data["request_id"] == "test-request-123"
assert log_data["user_id"] == "user-456"
# Clean up context
request_id_var.set(None)
user_id_var.set(None)
def test_format_with_exception(self):
"""Test log formatting with exception."""
formatter = JSONFormatter()
try:
raise ValueError("Test error")
except ValueError:
import sys
exc_info = sys.exc_info()
record = logging.LogRecord(
name="test",
level=logging.ERROR,
pathname="/test.py",
lineno=42,
msg="Error occurred",
args=(),
exc_info=exc_info
)
result = formatter.format(record)
log_data = json.loads(result)
assert log_data["level"] == "ERROR"
assert "exception" in log_data
assert "ValueError" in log_data["exception"]
def test_format_with_extra_fields(self):
"""Test log formatting with extra fields."""
formatter = JSONFormatter()
record = logging.LogRecord(
name="test",
level=logging.INFO,
pathname="/test.py",
lineno=42,
msg="Test message",
args=(),
exc_info=None
)
# Add extra fields
record.episode_id = "episode-123"
record.download_speed = 1024.5
result = formatter.format(record)
log_data = json.loads(result)
assert "extra" in log_data
assert log_data["extra"]["episode_id"] == "episode-123"
assert log_data["extra"]["download_speed"] == 1024.5
class TestLoggingConfig:
"""Test the logging configuration."""
def test_init_with_defaults(self):
"""Test initialization with default values."""
with tempfile.TemporaryDirectory() as temp_dir:
config = LoggingConfig(log_dir=temp_dir)
assert config.log_dir == Path(temp_dir)
assert config.log_level == logging.INFO
assert config.enable_console is True
assert config.enable_json_format is True
# Check that log files would be created
# No logs yet, files created on first log
assert config.log_dir.exists()
def test_log_directory_creation(self):
"""Test that log directory is created."""
with tempfile.TemporaryDirectory() as temp_dir:
log_dir = Path(temp_dir) / "logs" / "subdir"
config = LoggingConfig(log_dir=log_dir)
assert log_dir.exists()
assert config.log_dir == log_dir
def test_logger_setup(self):
"""Test that loggers are properly configured."""
with tempfile.TemporaryDirectory() as temp_dir:
LoggingConfig(log_dir=temp_dir)
# Test main logger
logger = logging.getLogger()
assert logger.level == logging.INFO
# Test specific loggers
download_logger = logging.getLogger("download")
assert download_logger.level == logging.INFO
assert download_logger.propagate is False
security_logger = logging.getLogger("security")
assert security_logger.level == logging.INFO
assert security_logger.propagate is False
performance_logger = logging.getLogger("performance")
assert performance_logger.level == logging.INFO
assert performance_logger.propagate is False
def test_file_logging(self):
"""Test that log files are created and written to."""
with tempfile.TemporaryDirectory() as temp_dir:
LoggingConfig(log_dir=temp_dir, enable_console=False)
# Write some logs
logger = logging.getLogger("test")
logger.info("Test info message")
logger.error("Test error message")
# Force handler flush
for handler in logging.getLogger().handlers:
handler.flush()
# Check that log files exist and contain content
app_log = Path(temp_dir) / "app.log"
error_log = Path(temp_dir) / "error.log"
# Files should exist after logging
assert app_log.exists()
assert error_log.exists()
class TestRequestLoggingMiddleware:
"""Test the request logging middleware."""
@pytest.fixture
def mock_request(self):
"""Create a mock request."""
request = MagicMock()
request.method = "GET"
request.url = "http://test.com/api/test"
request.headers = {
"user-agent": "test-agent",
"content-length": "100"
}
request.client.host = "127.0.0.1"
return request
@pytest.fixture
def mock_response(self):
"""Create a mock response."""
response = MagicMock()
response.status_code = 200
response.headers = {"content-length": "200"}
return response
@pytest.mark.asyncio
async def test_successful_request_logging(
self, mock_request, mock_response):
"""Test logging of successful requests."""
app = MagicMock()
middleware = RequestLoggingMiddleware(app)
async def mock_call_next(request):
return mock_response
with patch.object(middleware.logger, 'info') as mock_log_info:
with patch.object(
middleware.performance_logger, 'info') as mock_perf_log:
response = await middleware.dispatch(
mock_request, mock_call_next)
assert response == mock_response
assert mock_log_info.call_count == 2 # Start and completion
assert mock_perf_log.call_count == 1
# Check log messages
start_call = mock_log_info.call_args_list[0]
assert "Request started" in start_call[0][0]
completion_call = mock_log_info.call_args_list[1]
assert "Request completed" in completion_call[0][0]
@pytest.mark.asyncio
async def test_failed_request_logging(self, mock_request):
"""Test logging of failed requests."""
app = MagicMock()
middleware = RequestLoggingMiddleware(app)
async def mock_call_next(request):
raise ValueError("Test error")
with patch.object(middleware.logger, 'info') as mock_log_info:
with patch.object(middleware.logger, 'error') as mock_log_error:
with pytest.raises(ValueError):
await middleware.dispatch(mock_request, mock_call_next)
assert mock_log_info.call_count == 1 # Only start
assert mock_log_error.call_count == 1 # Error
error_call = mock_log_error.call_args_list[0]
assert "Request failed" in error_call[0][0]
def test_get_client_ip_forwarded_for(self):
"""Test client IP extraction with X-Forwarded-For header."""
app = MagicMock()
middleware = RequestLoggingMiddleware(app)
request = MagicMock()
request.headers = {"x-forwarded-for": "192.168.1.1, 10.0.0.1"}
ip = middleware._get_client_ip(request)
assert ip == "192.168.1.1"
def test_get_client_ip_real_ip(self):
"""Test client IP extraction with X-Real-IP header."""
app = MagicMock()
middleware = RequestLoggingMiddleware(app)
request = MagicMock()
request.headers = {"x-real-ip": "192.168.1.2"}
ip = middleware._get_client_ip(request)
assert ip == "192.168.1.2"
def test_get_client_ip_direct(self):
"""Test client IP extraction from direct connection."""
app = MagicMock()
middleware = RequestLoggingMiddleware(app)
request = MagicMock()
request.headers = {}
request.client.host = "192.168.1.3"
ip = middleware._get_client_ip(request)
assert ip == "192.168.1.3"
class TestUtilityFunctions:
"""Test utility functions."""
def test_setup_logging(self):
"""Test setup_logging function."""
with tempfile.TemporaryDirectory() as temp_dir:
config = setup_logging(log_dir=temp_dir, log_level="DEBUG")
assert isinstance(config, LoggingConfig)
assert config.log_dir == Path(temp_dir)
assert config.log_level == logging.DEBUG
def test_get_logger(self):
"""Test get_logger function."""
logger = get_logger("test.module")
assert isinstance(logger, logging.Logger)
assert logger.name == "test.module"
def test_log_download_progress(self):
"""Test download progress logging."""
with patch('logging.getLogger') as mock_get_logger:
mock_logger = MagicMock()
mock_get_logger.return_value = mock_logger
log_download_progress(
episode_id="ep-123",
progress=0.75,
status="downloading",
speed=1024.5,
eta="5 minutes"
)
mock_get_logger.assert_called_with("download")
mock_logger.info.assert_called_once()
call_args = mock_logger.info.call_args
assert "Download progress" in call_args[0][0]
assert call_args[1]["extra"]["episode_id"] == "ep-123"
assert call_args[1]["extra"]["progress"] == 0.75
def test_log_security_event(self):
"""Test security event logging."""
with patch('logging.getLogger') as mock_get_logger:
mock_logger = MagicMock()
mock_get_logger.return_value = mock_logger
log_security_event(
event_type="login_attempt",
details={"user_ip": "192.168.1.1", "success": True},
severity="INFO"
)
mock_get_logger.assert_called_with("security")
mock_logger.info.assert_called_once()
call_args = mock_logger.info.call_args
assert "Security event: login_attempt" in call_args[0][0]
def test_cleanup_old_logs(self):
"""Test log cleanup function."""
with tempfile.TemporaryDirectory() as temp_dir:
log_dir = Path(temp_dir)
# Create some test log files
old_log = log_dir / "old.log"
new_log = log_dir / "new.log"
old_log.touch()
new_log.touch()
# Test that function runs without error
# (Real test would require complex mocking of file system)
try:
cleanup_old_logs(log_dir, days_to_keep=30)
# If no exception is raised, the function works
success = True
except Exception:
success = False
assert success
# Both files should still exist since they're new
assert old_log.exists()
assert new_log.exists()
def test_init_logging(self):
"""Test init_logging function."""
with tempfile.TemporaryDirectory() as temp_dir:
init_logging(log_dir=temp_dir, log_level="DEBUG")
# Should set up global logging
logger = logging.getLogger()
assert logger.level == logging.DEBUG