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routstr-core/routstr/core/logging.py
T

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Python

"""
Logging configuration for Routstr.
CRITICAL LOG MESSAGES FOR USAGE STATISTICS:
===========================================
The following log messages are parsed by the usage tracking system (routstr/core/admin.py).
DO NOT modify or remove these messages without updating the usage tracking logic:
1. "Received proxy request" (INFO) - routstr/proxy.py
- Used to count total incoming requests
- Includes model information in context
2. "Payment adjustment completed for streaming" (INFO) - routstr/upstream/base.py
"Payment adjustment completed for non-streaming" (INFO) - routstr/upstream/base.py
- Used to track successful completions and revenue
- The 'cost_data.total_msats' field is extracted for revenue calculation
- Must include 'cost_data' in extra dict
3. "Payment processed successfully" (INFO) - routstr/auth.py
- Used to count successful payment processing events
- Tracks payment-related metrics
4. "Upstream request failed, revert payment" (WARNING) - routstr/proxy.py
- Used to track failed requests and refunds
- The 'max_cost_for_model' field is extracted for refund calculation
- Must include 'max_cost_for_model' in extra dict
5. Any ERROR level logs with "upstream" in the message
- Used to count upstream provider errors
- Helps identify service reliability issues
If you need to modify these messages, ensure you also update the parsing logic in:
- routstr/core/admin.py:_aggregate_metrics_by_time()
- routstr/core/admin.py:_get_summary_stats()
- routstr/core/admin.py:get_revenue_by_model()
"""
import logging.config
import logging.handlers
import os
import re
import tomllib
from datetime import datetime
from pathlib import Path
from typing import Any
from pythonjsonlogger import jsonlogger
from rich.logging import RichHandler
# Define custom TRACE level
TRACE_LEVEL = 5
logging.addLevelName(TRACE_LEVEL, "TRACE")
def trace(self: logging.Logger, message: str, *args: Any, **kwargs: Any) -> None:
"""Log with TRACE level"""
if self.isEnabledFor(TRACE_LEVEL):
self._log(TRACE_LEVEL, message, args, **kwargs)
# Add the trace method to Logger class
setattr(logging.Logger, "trace", trace)
class DailyRotatingFileHandler(logging.handlers.TimedRotatingFileHandler):
"""Custom TimedRotatingFileHandler that creates date-based filenames."""
def __init__(self, filename: str, **kwargs: Any) -> None:
"""Initialize with a base filename pattern."""
self.base_dir = os.path.dirname(filename)
self.base_name = os.path.basename(filename).replace(".log", "")
today = datetime.now().strftime("%Y-%m-%d")
self.current_date = today
dated_filename = os.path.join(self.base_dir, f"{self.base_name}_{today}.log")
super().__init__(dated_filename, **kwargs)
def doRollover(self) -> None:
"""Override rollover to create new date-based filename."""
if self.stream:
self.stream.close()
new_date = datetime.now().strftime("%Y-%m-%d")
new_filename = os.path.join(self.base_dir, f"{self.base_name}_{new_date}.log")
self.baseFilename = new_filename
self.current_date = new_date
# FIX ME: not sure if we need this
# self._cleanup_old_files()
if not self.delay:
self.stream = self._open()
def _cleanup_old_files(self) -> None:
"""Remove old log files beyond backupCount."""
if self.backupCount > 0:
log_files = []
if os.path.exists(self.base_dir):
for file in os.listdir(self.base_dir):
if file.startswith(f"{self.base_name}_") and file.endswith(".log"):
file_path = os.path.join(self.base_dir, file)
log_files.append((file_path, os.path.getmtime(file_path)))
log_files.sort(key=lambda x: x[1], reverse=True)
for file_path, _ in log_files[self.backupCount :]:
try:
os.remove(file_path)
except OSError:
pass
def get_package_version() -> str:
"""Read the package version from pyproject.toml."""
try:
# Find project root by looking for pyproject.toml
current_path = Path(__file__).parent
while current_path != current_path.parent:
pyproject_path = current_path / "pyproject.toml"
if pyproject_path.exists():
with open(pyproject_path, "rb") as f:
pyproject_data = tomllib.load(f)
version = pyproject_data.get("project", {}).get("version", "unknown")
return version
current_path = current_path.parent
# Fallback: try the simple path resolution (3 levels up for routstr/logging/logging_config.py)
pyproject_path = Path(__file__).parent.parent.parent / "pyproject.toml"
if pyproject_path.exists():
with open(pyproject_path, "rb") as f:
pyproject_data = tomllib.load(f)
version = pyproject_data.get("project", {}).get("version", "unknown")
return version
return "unknown"
except Exception:
return "unknown"
class VersionFilter(logging.Filter):
"""Filter to add package version to all log records."""
def __init__(self) -> None:
super().__init__()
self.version = get_package_version()
def filter(self, record: logging.LogRecord) -> bool:
"""Add version information to the log record."""
record.version = self.version
return True
class RequestIdFilter(logging.Filter):
"""Filter to add request ID to all log records."""
def filter(self, record: logging.LogRecord) -> bool:
"""Add request ID to the log record if available."""
try:
# Import here to avoid circular imports
from .middleware import request_id_context
request_id = request_id_context.get(None)
record.request_id = request_id if request_id else "no-request-id"
except ImportError:
# If middleware isn't available yet, just use default
record.request_id = "no-request-id"
return True
class SecurityFilter(logging.Filter):
"""Filter to remove sensitive information from logs."""
SENSITIVE_KEYS = {
"authorization",
"x-cashu",
"bearer",
"token",
"key",
"secret",
"password",
"cashu_token",
"bearer_key",
"api_key",
"nsec",
"upstream_api_key",
"refund_address",
}
def filter(self, record: logging.LogRecord) -> bool:
"""Filter out sensitive information from log records."""
try:
message = record.getMessage()
for key in self.SENSITIVE_KEYS:
if key in message.lower():
patterns = [
rf"{key}[:\s=]+([a-zA-Z0-9_\-\.]+)", # key: value or key=value
rf'{key}[:\s=]+["\']([^"\']+)["\']', # key: "value" or key='value'
r"Bearer\s+([a-zA-Z0-9_\-\.]+)", # Bearer token
r"cashu[A-Z]+([a-zA-Z0-9_\-\.=/+]+)", # Cashu tokens
]
for pattern in patterns:
message = re.sub(
pattern, f"{key}: [REDACTED]", message, flags=re.IGNORECASE
)
record.msg = message
record.args = ()
except Exception:
pass
return True
def get_log_level() -> str:
"""Get log level from environment variable."""
try:
from .settings import settings
level = settings.log_level.upper()
except Exception:
level = os.environ.get("LOG_LEVEL", "INFO").upper()
# Validate log level - if invalid, default to INFO
valid_levels = {"TRACE", "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL"}
if level not in valid_levels:
level = "INFO"
return level
def should_enable_console_logging() -> bool:
"""Check if console logging should be enabled."""
try:
from .settings import settings
return bool(settings.enable_console_logging)
except Exception:
return os.environ.get("ENABLE_CONSOLE_LOGGING", "true").lower() in (
"true",
"1",
"yes",
)
def setup_logging() -> None:
"""Configure centralized logging for the application."""
log_level = get_log_level()
console_enabled = should_enable_console_logging()
# Determine which handlers to use
handlers = ["file"]
if console_enabled:
handlers.append("console")
LOGGING_CONFIG = {
"version": 1,
"disable_existing_loggers": False,
"formatters": {
"json": {
"()": jsonlogger.JsonFormatter,
"format": "%(asctime)s %(name)s %(levelname)s %(message)s %(pathname)s %(lineno)d %(version)s %(request_id)s",
"datefmt": "%Y-%m-%d %H:%M:%S",
},
},
"filters": {
"version_filter": {"()": VersionFilter},
"request_id_filter": {"()": RequestIdFilter},
"security_filter": {"()": SecurityFilter},
},
"handlers": {
"console": {
"()": RichHandler,
"level": log_level,
"show_time": False,
"show_path": False,
"rich_tracebacks": True,
"markup": True,
"filters": ["request_id_filter", "security_filter"],
},
"file": {
"()": DailyRotatingFileHandler,
"level": log_level,
"formatter": "json",
"filename": "logs/app.log",
"when": "midnight", # Rotate at midnight each day
"interval": 1, # Every 1 day
"backupCount": 30, # Keep 30 days of logs
"atTime": None, # Rotate at midnight (00:00)
"filters": ["version_filter", "request_id_filter", "security_filter"],
},
},
"loggers": {
"routstr": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.payment": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.proxy": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.auth": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.payment.models": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.core.exceptions": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"routstr.core.middleware": {
"level": log_level,
"handlers": ["file"],
"propagate": False,
},
# Suppress verbose third-party logging
"httpx": {
"level": "WARNING",
"handlers": ["console"] if console_enabled else [],
"propagate": False,
},
"httpcore": {
"level": "WARNING",
"handlers": ["console"] if console_enabled else [],
"propagate": False,
},
"websockets": {
"level": "WARNING",
"handlers": [],
"propagate": False,
},
"uvicorn.access": {
"level": "WARNING",
"handlers": ["file"],
"propagate": False,
},
"uvicorn.error": {
"level": log_level,
"handlers": handlers,
"propagate": False,
},
"watchfiles.main": {"level": "WARNING", "handlers": [], "propagate": False},
"aiosqlite": {"level": "ERROR", "handlers": [], "propagate": False},
},
"root": {
"level": log_level,
"handlers": ["console"] if console_enabled else [],
},
}
os.makedirs("logs", exist_ok=True)
logging.config.dictConfig(LOGGING_CONFIG)
def get_logger(name: str) -> logging.Logger:
"""Get a logger instance for the given module name."""
return logging.getLogger(name)