med/users/decorators.py

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# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2017 Gabriel Détraz
# Copyright © 2017 Goulven Kermarec
# Copyright © 2017 Augustin Lemesle
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# App de gestion des users pour med
# Goulven Kermarec, Gabriel Détraz, Lemesle Augustin
# Gplv2
from django.core.exceptions import PermissionDenied
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from django.shortcuts import redirect
from med.settings import AUTHORIZED_IP_RANGE, AUTHORIZED_IP6_RANGE
import ipaddress
def user_is_in_campus(function):
def wrap(request, *args, **kwargs):
if not request.user.is_authenticated:
remote_ip = get_ip(request)
if not ipaddress.ip_address(remote_ip) in ipaddress.ip_network(AUTHORIZED_IP_RANGE) and not ipaddress.ip_address(remote_ip) in ipaddress.ip_network(AUTHORIZED_IP6_RANGE):
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return redirect("/")
return function(request, *args, **kwargs)
wrap.__doc__ = function.__doc__
wrap.__name__ = function.__name__
return wrap
def get_ip(request):
"""Returns the IP of the request, accounting for the possibility of being
behind a proxy.
"""
ip = request.META.get("HTTP_X_FORWARDED_FOR", None)
if ip:
# X_FORWARDED_FOR returns client1, proxy1, proxy2,...
ip = ip.split(", ")[0]
else:
ip = request.META.get("REMOTE_ADDR", "")
return ip