mirror of
https://github.com/janeczku/calibre-web
synced 2024-10-31 15:20:28 +00:00
152 lines
4.6 KiB
Python
152 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
|
|
# Copyright (C) 2019 pwr
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from __future__ import division, print_function, unicode_literals
|
|
import os
|
|
import inspect
|
|
import logging
|
|
from logging import Formatter, StreamHandler
|
|
from logging.handlers import RotatingFileHandler
|
|
|
|
from .constants import BASE_DIR as _BASE_DIR
|
|
|
|
|
|
ACCESS_FORMATTER_GEVENT = Formatter("%(message)s")
|
|
ACCESS_FORMATTER_TORNADO = Formatter("[%(asctime)s] %(message)s")
|
|
|
|
FORMATTER = Formatter("[%(asctime)s] %(levelname)5s {%(name)s:%(lineno)d} %(message)s")
|
|
DEFAULT_LOG_LEVEL = logging.INFO
|
|
DEFAULT_LOG_FILE = os.path.join(_BASE_DIR, "calibre-web.log")
|
|
DEFAULT_ACCESS_LOG = os.path.join(_BASE_DIR, "access.log")
|
|
LOG_TO_STDERR = '/dev/stderr'
|
|
|
|
logging.addLevelName(logging.WARNING, "WARN")
|
|
logging.addLevelName(logging.CRITICAL, "CRIT")
|
|
|
|
|
|
def get(name=None):
|
|
return logging.getLogger(name)
|
|
|
|
|
|
def create():
|
|
parent_frame = inspect.stack(0)[1]
|
|
if hasattr(parent_frame, 'frame'):
|
|
parent_frame = parent_frame.frame
|
|
else:
|
|
parent_frame = parent_frame[0]
|
|
parent_module = inspect.getmodule(parent_frame)
|
|
return get(parent_module.__name__)
|
|
|
|
|
|
def is_debug_enabled():
|
|
return logging.root.level <= logging.DEBUG
|
|
|
|
def is_info_enabled(logger):
|
|
return logging.getLogger(logger).level <= logging.INFO
|
|
|
|
|
|
def get_level_name(level):
|
|
return logging.getLevelName(level)
|
|
|
|
|
|
def is_valid_logfile(file_path):
|
|
if not file_path:
|
|
return True
|
|
if os.path.isdir(file_path):
|
|
return False
|
|
log_dir = os.path.dirname(file_path)
|
|
return (not log_dir) or os.path.isdir(log_dir)
|
|
|
|
|
|
def _absolute_log_file(log_file, default_log_file):
|
|
if log_file:
|
|
if not os.path.dirname(log_file):
|
|
log_file = os.path.join(_BASE_DIR, log_file)
|
|
return os.path.abspath(log_file)
|
|
|
|
return default_log_file
|
|
|
|
|
|
def setup(log_file, log_level=None):
|
|
'''
|
|
Configure the logging output.
|
|
May be called multiple times.
|
|
'''
|
|
log_file = _absolute_log_file(log_file, DEFAULT_LOG_FILE)
|
|
|
|
r = logging.root
|
|
r.setLevel(log_level or DEFAULT_LOG_LEVEL)
|
|
|
|
previous_handler = r.handlers[0] if r.handlers else None
|
|
if previous_handler:
|
|
# if the log_file has not changed, don't create a new handler
|
|
if getattr(previous_handler, 'baseFilename', None) == log_file:
|
|
return
|
|
r.debug("logging to %s level %s", log_file, r.level)
|
|
|
|
if log_file == LOG_TO_STDERR:
|
|
file_handler = StreamHandler()
|
|
file_handler.baseFilename = LOG_TO_STDERR
|
|
else:
|
|
try:
|
|
file_handler = RotatingFileHandler(log_file, maxBytes=50000, backupCount=2)
|
|
except IOError:
|
|
if log_file == DEFAULT_LOG_FILE:
|
|
raise
|
|
file_handler = RotatingFileHandler(DEFAULT_LOG_FILE, maxBytes=50000, backupCount=2)
|
|
file_handler.setFormatter(FORMATTER)
|
|
|
|
for h in r.handlers:
|
|
r.removeHandler(h)
|
|
h.close()
|
|
r.addHandler(file_handler)
|
|
|
|
|
|
def create_access_log(log_file, log_name, formatter):
|
|
'''
|
|
One-time configuration for the web server's access log.
|
|
'''
|
|
log_file = _absolute_log_file(log_file, DEFAULT_ACCESS_LOG)
|
|
logging.debug("access log: %s", log_file)
|
|
|
|
access_log = logging.getLogger(log_name)
|
|
access_log.propagate = False
|
|
access_log.setLevel(logging.INFO)
|
|
|
|
file_handler = RotatingFileHandler(log_file, maxBytes=50000, backupCount=2)
|
|
file_handler.setFormatter(formatter)
|
|
access_log.addHandler(file_handler)
|
|
return access_log
|
|
|
|
|
|
# Enable logging of smtp lib debug output
|
|
class StderrLogger(object):
|
|
def __init__(self, name=None):
|
|
self.log = get(name or self.__class__.__name__)
|
|
self.buffer = ''
|
|
|
|
def write(self, message):
|
|
try:
|
|
if message == '\n':
|
|
self.log.debug(self.buffer.replace('\n', '\\n'))
|
|
self.buffer = ''
|
|
else:
|
|
self.buffer += message
|
|
except Exception:
|
|
self.log.debug("Logging Error")
|