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authentik/passbook/root/wsgi.py

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2018-11-11 12:41:48 +00:00
"""
WSGI config for passbook project.
It exposes the WSGI callable as a module-level variable named ``application``.
For more information on this file, see
https://docs.djangoproject.com/en/2.1/howto/deployment/wsgi/
"""
import os
from time import time
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from django.core.wsgi import get_wsgi_application
from structlog import get_logger
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "passbook.root.settings")
class WSGILogger:
""" This is the generalized WSGI middleware for any style request logging. """
def __init__(self, application):
self.application = application
self.logger = get_logger('passbook.wsgi')
def __healthcheck(self, start_response):
start_response('204 OK', [])
return [b'']
def __call__(self, environ, start_response):
start = time()
status_codes = []
content_lengths = []
if environ.get('HTTP_HOST', '').startswith('kubernetes-healthcheck-host'):
# Don't log kubernetes health/readiness requests
return self.__healthcheck(start_response)
def custom_start_response(status, response_headers, exc_info=None):
status_codes.append(int(status.partition(' ')[0]))
for name, value in response_headers:
if name.lower() == 'content-length':
content_lengths.append(int(value))
break
return start_response(status, response_headers, exc_info)
retval = self.application(environ, custom_start_response)
runtime = int((time() - start) * 10**6)
content_length = content_lengths[0] if content_lengths else 0
self.log(status_codes[0], environ, content_length,
ip_header=None, runtime=runtime)
return retval
def log(self, status_code, environ, content_length, **kwargs):
"""
Apache log format 'NCSA extended/combined log':
"%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\""
see http://httpd.apache.org/docs/current/mod/mod_log_config.html#formats
"""
ip_header = kwargs.get('ip_header', None)
if ip_header:
host = environ.get(ip_header, '')
else:
host = environ.get('REMOTE_ADDR', '')
query_string = ''
if environ.get('QUERY_STRING') != '':
query_string = f"?{environ.get('QUERY_STRING')}"
self.logger.info(f"{environ.get('PATH_INFO', '')}{query_string}",
host=host,
method=environ.get('REQUEST_METHOD', ''),
protocol=environ.get('SERVER_PROTOCOL', ''),
status=status_code,
size=content_length / 1000 if content_length > 0 else '-',
runtime=kwargs.get('runtime'))
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application = WSGILogger(get_wsgi_application())