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#-----------------------------------------------------------------------------
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# Copyright (C) 2013 The IPython Development Team
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#
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# Distributed under the terms of the BSD License. The full license is in
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# the file COPYING, distributed as part of this software.
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#-----------------------------------------------------------------------------
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import json
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from tornado.log import access_log
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def log_request(handler):
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"""log a bit more information about each request than tornado's default
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- move static file get success to debug-level (reduces noise)
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- get proxied IP instead of proxy IP
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- log referer for redirect and failed requests
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- log user-agent for failed requests
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"""
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status = handler.get_status()
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request = handler.request
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if status < 300 or status == 304:
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# Successes (or 304 FOUND) are debug-level
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log_method = access_log.debug
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elif status < 400:
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log_method = access_log.info
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elif status < 500:
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log_method = access_log.warning
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else:
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log_method = access_log.error
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request_time = 1000.0 * handler.request.request_time()
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ns = dict(
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status=status,
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method=request.method,
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ip=request.remote_ip,
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uri=request.uri,
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request_time=request_time,
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)
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msg = "{status} {method} {uri} ({ip}) {request_time:.2f}ms"
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if status >= 300:
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# log referers on redirects
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ns['referer'] = request.headers.get('Referer', 'None')
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msg = msg + ' referer={referer}'
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if status >= 400:
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# log user agent for failed requests
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ns['agent'] = request.headers.get('User-Agent', 'Unknown')
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msg = msg + ' user-agent={agent}'
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if status >= 500 and status != 502:
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# log all headers if it caused an error
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log_method(json.dumps(request.headers, indent=2))
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log_method(msg.format(**ns))
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