138 lines
4.1 KiB
Python
138 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2013 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import sys
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from logging.handlers import WatchedFileHandler
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from StringIO import StringIO
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SERVER_ERROR_MSG = '500 Internal Server Error'
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DATEFORMAT = '%Y-%m-%d %H:%M:%S'
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LOGFORMAT = '%(asctime)s.%(msecs)03d %(levelname)s ' + \
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'[%(thread)x] (%(module)s) %(message)s'
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formatter = logging.Formatter(LOGFORMAT, DATEFORMAT)
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# NOTE(aroma): the logging level for nailgun is set up inside
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# nailgun settings parsing object in nailgun.settings module hence
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# following option will be in effect only when the settings are not
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# available for some reason
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LOG_LEVEL = logging.DEBUG
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def make_nailgun_logger():
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"""Make logger for nailgun app writes logs to stdout"""
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logger = logging.getLogger("nailgun")
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handler = logging.StreamHandler(sys.stdout)
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set_logger(logger, handler)
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return logger
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def make_api_logger():
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"""Make logger for REST API writes logs to the file"""
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# Circular import dependency problem
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# we import logger module in settings
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from nailgun.settings import settings
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logger = logging.getLogger("nailgun-api")
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log_file = WatchedFileHandler(settings.API_LOG)
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set_logger(logger, log_file)
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return logger
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def set_logger(logger, handler, level=None):
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if level is None:
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level = LOG_LEVEL
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handler.setFormatter(formatter)
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logger.setLevel(level)
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logger.addHandler(handler)
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logger = make_nailgun_logger()
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class WriteLogger(logging.Logger, object):
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def __init__(self, logger, level=logging.DEBUG):
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super(WriteLogger, self).__init__(logger)
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self.logger = logger
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def write(self, message):
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if message.strip() != '':
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self.logger(message)
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class HTTPLoggerMiddleware(object):
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def __init__(self, application):
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self.application = application
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self.api_logger = make_api_logger()
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def __call__(self, env, start_response):
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env['wsgi.errors'] = WriteLogger(self.api_logger.error)
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self.__logging_request(env)
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def start_response_with_logging(status, headers, *args):
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self.__logging_response(env, status)
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return start_response(status, headers, *args)
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return self.application(env, start_response_with_logging)
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def __logging_response(self, env, response_code):
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response_info = "Response code '%s' for %s %s from %s:%s" % (
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response_code,
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env['REQUEST_METHOD'],
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env['REQUEST_URI'],
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self.__get_remote_ip(env),
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env['REMOTE_PORT'],
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)
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if response_code == SERVER_ERROR_MSG:
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self.api_logger.error(response_info)
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else:
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self.api_logger.debug(response_info)
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def __logging_request(self, env):
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content_length = env.get('CONTENT_LENGTH', 0)
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if content_length == '':
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content_length = 0
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length = int(content_length)
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body = ''
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if length != 0:
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body = env['wsgi.input'].read(length)
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env['wsgi.input'] = StringIO(body)
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request_info = "Request %s %s from %s:%s %s" % (
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env['REQUEST_METHOD'],
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env['REQUEST_URI'],
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self.__get_remote_ip(env),
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env['REMOTE_PORT'],
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body
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)
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self.api_logger.debug(request_info)
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def __get_remote_ip(self, env):
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if 'HTTP_X_REAL_IP' in env:
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return env['HTTP_X_REAL_IP']
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elif 'REMOTE_ADDR' in env:
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return env['REMOTE_ADDR']
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else:
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return 'can not determine ip'
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