[英]Loguru: how to obfuscate data in logs
使用 python 記錄器,我可以像這樣混淆數據:
import logging
import re
import sys
class MySensitiveFormatter(logging.Formatter):
"""Formatter that removes sensitive information."""
@staticmethod
def _filter(s):
"""Remove credentials."""
result = re.sub(r"pass: .*", "pass: xxx", s)
return result
def format(self, record):
"""Obfuscate sensitive information."""
original = logging.Formatter.format(self, record)
return self._filter(original)
stream_handler = logging.StreamHandler(stream=sys.stdout)
stream_handler.setFormatter(MySensitiveFormatter())
logger = logging.getLogger("demo")
logger.setLevel("INFO")
logger.addHandler(stream_handler)
logger.info("This is a demo and here is the pass: secret")
打印 => 這是一個演示,這是通行證:xxx
在loguru 中,我無法添加格式化程序/處理程序,並且過濾器會刪除整個記錄(這不是我想要的)。 如何使用loguru實現此目的?
這是loguru團隊提供的正確方式:
def obfuscate_message(message: str):
"""Obfuscate sensitive information."""
result = re.sub(r"pass: .*", "pass: xxx", s)
return result
def formatter(record):
record["extra"]["obfuscated_message"] = obfuscate_message(record["message"])
return "[{level}] {extra[obfuscated_message]}\n{exception}"
logger.add(sys.stderr, format=formatter)
有關詳細信息,請參閱loguru 問題。
這是它的工作原理:
def obfuscate_message(message: str):
"""Obfuscate sensitive information."""
result = re.sub(r"pass: .*", "pass: xxx", s)
return result
class LoguruInterceptHandler(logging.Handler):
"""Enable loguru logging."""
def emit(self, record):
"""Get corresponding Loguru level if it exists."""
try:
level = loguru.logger.level(record.levelname).name
except ValueError:
level = record.levelno
# Find caller from where originated the logged message
frame, depth = logging.currentframe(), 2
while frame.f_code.co_filename == logging.__file__:
frame = frame.f_back
depth += 1
# filter sensitive data (this does the trick)
message = obfuscate_message(record.getMessage())
loguru.logger.opt(depth=depth, exception=record.exc_info).log(level, message)
像這樣使用:
logger = logging.getLogger()
logger.handlers = [LoguruInterceptHandler()] # overwrite old handlers
logger.info("This is a demo and here is the pass: secret")
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