django-axes/axes/decorators.py

92 lines
2.8 KiB
Python

from datetime import timedelta
import json
import logging
from django.http import HttpResponse
from django.http import HttpResponseRedirect
from django.shortcuts import render
from axes import get_version
from axes.conf import settings
from axes.attempts import is_already_locked
from axes.utils import iso8601
from axes.signals import * # load all signals
log = logging.getLogger(settings.AXES_LOGGER)
if settings.AXES_VERBOSE:
log.info('AXES: BEGIN LOG')
log.info('AXES: Using django-axes ' + get_version())
if settings.AXES_ONLY_USER_FAILURES:
log.info('AXES: blocking by username only.')
elif settings.AXES_LOCK_OUT_BY_COMBINATION_USER_AND_IP:
log.info('AXES: blocking by combination of username and IP.')
else:
log.info('AXES: blocking by IP only.')
if settings.AXES_BEHIND_REVERSE_PROXY:
log.debug('AXES: Axes is configured to be behind reverse proxy')
log.debug(
'AXES: Looking for header value %s', settings.AXES_REVERSE_PROXY_HEADER
)
log.debug(
'AXES: Number of proxies configured: {} '
'(please check this if you are using a custom header)'.format(
settings.AXES_NUM_PROXIES
)
)
def watch_login(func):
def inner(request, *args, **kwargs):
# If the request is currently under lockout, do not proceed to the
# login function, go directly to lockout url, do not pass go, do not
# collect messages about this login attempt
if is_already_locked(request):
return lockout_response(request)
# call the login function
return func(request, *args, **kwargs)
return inner
def lockout_response(request):
context = {
'failure_limit': settings.AXES_FAILURE_LIMIT,
'username': request.POST.get(settings.AXES_USERNAME_FORM_FIELD, '')
}
cool_off = settings.AXES_COOLOFF_TIME
if cool_off:
if (isinstance(cool_off, int) or isinstance(cool_off, float)):
cool_off = timedelta(hours=cool_off)
context.update({
'cooloff_time': iso8601(cool_off)
})
if request.is_ajax():
return HttpResponse(
json.dumps(context),
content_type='application/json',
status=403,
)
elif settings.AXES_LOCKOUT_TEMPLATE:
return render(
request, settings.AXES_LOCKOUT_TEMPLATE, context, status=403
)
elif settings.AXES_LOCKOUT_URL:
return HttpResponseRedirect(settings.AXES_LOCKOUT_URL)
else:
msg = 'Account locked: too many login attempts. {0}'
if settings.AXES_COOLOFF_TIME:
msg = msg.format('Please try again later.')
else:
msg = msg.format('Contact an admin to unlock your account.')
return HttpResponse(msg, status=403)