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105 lines
3.3 KiB
105 lines
3.3 KiB
10 years ago
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"""An extended version of the log_settings module from zamboni:
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https://github.com/jbalogh/zamboni/blob/master/log_settings.py
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"""
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from __future__ import absolute_import
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from tornado.log import LogFormatter as TornadoLogFormatter
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import logging, logging.handlers
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import os.path
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import types
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from logconfig import dictconfig
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# Pulled from commonware.log we don't have to import that, which drags with
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# it Django dependencies.
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class RemoteAddressFormatter(logging.Formatter):
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"""Formatter that makes sure REMOTE_ADDR is available."""
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def format(self, record):
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if ('%(REMOTE_ADDR)' in self._fmt
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and 'REMOTE_ADDR' not in record.__dict__):
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record.__dict__['REMOTE_ADDR'] = None
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return logging.Formatter.format(self, record)
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class UTF8SafeFormatter(RemoteAddressFormatter):
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def __init__(self, fmt=None, datefmt=None, encoding='utf-8'):
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logging.Formatter.__init__(self, fmt, datefmt)
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self.encoding = encoding
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def formatException(self, e):
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r = logging.Formatter.formatException(self, e)
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if type(r) in [types.StringType]:
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r = r.decode(self.encoding, 'replace') # Convert to unicode
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return r
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def format(self, record):
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t = RemoteAddressFormatter.format(self, record)
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if type(t) in [types.UnicodeType]:
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t = t.encode(self.encoding, 'replace')
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return t
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class NullHandler(logging.Handler):
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def emit(self, record):
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pass
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def initialize_logging(syslog_tag, syslog_facility, loggers,
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log_level=logging.INFO, use_syslog=False):
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if os.path.exists('/dev/log'):
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syslog_device = '/dev/log'
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elif os.path.exists('/var/run/syslog'):
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syslog_device = '/var/run/syslog'
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base_fmt = ('%(name)s:%(levelname)s %(message)s:%(pathname)s:%(lineno)s')
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cfg = {
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'version': 1,
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'filters': {},
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'formatters': {
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'debug': {
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'()': UTF8SafeFormatter,
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'datefmt': '%H:%M:%s',
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'format': '%(asctime)s ' + base_fmt,
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},
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'prod': {
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'()': UTF8SafeFormatter,
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'datefmt': '%H:%M:%s',
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'format': '%s: [%%(REMOTE_ADDR)s] %s' % (syslog_tag, base_fmt),
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},
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'tornado': {
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'()': TornadoLogFormatter,
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'color': True
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},
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},
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'handlers': {
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'console': {
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'()': logging.StreamHandler,
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'formatter': 'tornado'
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},
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'null': {
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'()': NullHandler,
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},
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'syslog': {
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'()': logging.handlers.SysLogHandler,
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'facility': syslog_facility,
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'address': syslog_device,
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'formatter': 'prod',
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},
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},
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'loggers': {
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}
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}
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for key, value in loggers.items():
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cfg[key].update(value)
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# Set the level and handlers for all loggers.
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for logger in cfg['loggers'].values():
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if 'handlers' not in logger:
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logger['handlers'] = ['syslog' if use_syslog else 'console']
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if 'level' not in logger:
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logger['level'] = log_level
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if 'propagate' not in logger:
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logger['propagate'] = False
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dictconfig.dictConfig(cfg)
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