mirror of
https://gitlab2.federez.net/re2o/re2o
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266 lines
9 KiB
Python
266 lines
9 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
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# se veut agnostique au réseau considéré, de manière à être installable en
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# quelques clics.
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#
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# Copyright © 2020 Corentin Canebier
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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from rest_framework.decorators import api_view
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from rest_framework.response import Response
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from django.db.models import Q
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from django.http import HttpResponse
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from django.forms import ValidationError
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from django.contrib.auth.decorators import login_required
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from . import serializers
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from machines.models import Domain, IpList, Interface, Nas, Machine
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from users.models import User
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from preferences.models import RadiusOption
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from topologie.models import Port, Switch
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from re2o.acl import can_view_all_api, can_edit_all_api, can_create_api
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class AuthorizeResponse:
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"""Contains objects the radius needs for the Authorize step"""
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def __init__(self, nas, user, user_interface):
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self.nas = nas
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self.user = user
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self.user_interface = user_interface
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def can_view(self, user):
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"""Method to bypass api permissions, because we are using ACL decorators"""
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return (True, None, None)
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@api_view(["GET"])
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@login_required
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@can_view_all_api(Interface, Domain, IpList, Nas, User)
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def authorize(request, nas_id, username, mac_address):
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"""Return objects the radius needs for the Authorize step
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Parameters:
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nas_id (string): NAS name or ipv4
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username (string): username of the user who is trying to connect
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mac_address (string): mac address of the device which is trying to connect
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Return:
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AuthorizeResponse: contains all required informations
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"""
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# get the Nas object which made the request (if exists)
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nas_interface = Interface.objects.filter(
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Q(domain__name=nas_id) | Q(ipv4__ipv4=nas_id)
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).first()
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nas_type = None
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if nas_interface:
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nas_type = Nas.objects.filter(nas_type=nas_interface.machine_type).first()
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# get the User corresponding to the username in the URL
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# If no username was provided (wired connection), username="None"
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user = User.objects.filter(pseudo__iexact=username).first()
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# get the interface which is trying to connect (if already created)
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user_interface = Interface.objects.filter(mac_address=mac_address).first()
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serialized = serializers.AuthorizeResponseSerializer(
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AuthorizeResponse(nas_type, user, user_interface)
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)
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return Response(data=serialized.data)
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class PostAuthResponse:
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"""Contains objects the radius needs for the Post-Auth step"""
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def __init__(
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self,
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nas,
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room_users,
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port,
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port_profile,
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switch,
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user_interface,
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radius_option,
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EMAIL_STATE_UNVERIFIED,
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RADIUS_OPTION_REJECT,
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USER_STATE_ACTIVE,
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):
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self.nas = nas
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self.room_users = room_users
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self.port = port
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self.port_profile = port_profile
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self.switch = switch
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self.user_interface = user_interface
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self.radius_option = radius_option
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self.EMAIL_STATE_UNVERIFIED = EMAIL_STATE_UNVERIFIED
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self.RADIUS_OPTION_REJECT = RADIUS_OPTION_REJECT
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self.USER_STATE_ACTIVE = USER_STATE_ACTIVE
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def can_view(self, user):
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"""Method to bypass api permissions, because we are using ACL decorators"""
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return (True, None, None)
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@api_view(["GET"])
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@login_required
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@can_view_all_api(Interface, Domain, IpList, Nas, Switch, Port, User)
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def post_auth(request, nas_id, nas_port, user_mac):
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"""Return objects the radius needs for the Post-Auth step
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Parameters:
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nas_id (string): NAS name or ipv4
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nas_port (string): NAS port from wich the request came. Work with Cisco, HP and Juniper convention
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user_mac (string): mac address of the device which is trying to connect
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Return:
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PostAuthResponse: contains all required informations
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"""
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# get the Nas object which made the request (if exists)
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nas_interface = (
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Interface.objects.prefetch_related("machine__switch__stack")
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.filter(Q(domain__name=nas_id) | Q(ipv4__ipv4=nas_id))
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.first()
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)
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nas_type = None
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if nas_interface:
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nas_type = Nas.objects.filter(nas_type=nas_interface.machine_type).first()
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# get the switch (if wired connection)
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switch = None
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if nas_interface:
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switch = Switch.objects.filter(machine_ptr=nas_interface.machine).first()
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# If the switch is part of a stack, get the correct object
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if hasattr(nas_interface.machine, "switch"):
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stack = nas_interface.machine.switch.stack
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if stack:
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# For Juniper, the result looks something like this: NAS-Port-Id = "ge-0/0/6.0""
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# For other brands (e.g. HP or Mikrotik), the result usually looks like: NAS-Port-Id = "6.0"
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# This "magic split" handles both cases
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# Cisco can rot in Hell for all I care, so their format is not supported (it looks like NAS-Port-ID = atm 31/31/7:255.65535 guangzhou001/0/31/63/31/127)
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id_stack_member = nas_port.split("-")[1].split("/")[0]
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switch = (
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Switch.objects.filter(stack=stack)
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.filter(stack_member_id=id_stack_member)
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.first()
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)
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# get the switch port
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port = None
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if nas_port and nas_port != "None":
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# magic split (see above)
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port_number = nas_port.split(".")[0].split("/")[-1][-2:]
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port = Port.objects.filter(switch=switch, port=port_number).first()
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port_profile = None
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if port:
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port_profile = port.get_port_profile
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# get the interface which is trying to connect (if already created)
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user_interface = (
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Interface.objects.filter(mac_address=user_mac)
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.select_related("machine__user")
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.select_related("ipv4")
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.first()
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)
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# get all users and clubs of the room
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room_users = []
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if port:
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room_users = User.objects.filter(
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Q(club__room=port.room) | Q(adherent__room=port.room)
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)
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# get all radius options
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radius_option = RadiusOption.objects.first()
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# get a few class constants the radius will need
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EMAIL_STATE_UNVERIFIED = User.EMAIL_STATE_UNVERIFIED
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RADIUS_OPTION_REJECT = RadiusOption.REJECT
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USER_STATE_ACTIVE = User.STATE_ACTIVE
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serialized = serializers.PostAuthResponseSerializer(
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PostAuthResponse(
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nas_type,
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room_users,
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port,
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port_profile,
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switch,
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user_interface,
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radius_option,
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EMAIL_STATE_UNVERIFIED,
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RADIUS_OPTION_REJECT,
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USER_STATE_ACTIVE,
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)
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)
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return Response(data=serialized.data)
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@api_view(["GET"])
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@login_required
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@can_view_all_api(Interface, Domain, IpList, Nas, User)
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@can_edit_all_api(User, Domain, Machine, Interface)
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def autoregister_machine(request, nas_id, username, mac_address):
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"""Autoregister machine in the Authorize step of the radius
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Parameters:
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nas_id (string): NAS name or ipv4
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username (string): username of the user who is trying to connect
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mac_address (string): mac address of the device which is trying to connect
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Return:
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200 if autoregistering worked
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400 if it failed, and the reason why
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"""
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nas_interface = Interface.objects.filter(
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Q(domain__name=nas_id) | Q(ipv4__ipv4=nas_id)
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).first()
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nas_type = None
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if nas_interface:
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nas_type = Nas.objects.filter(nas_type=nas_interface.machine_type).first()
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user = User.objects.filter(pseudo__iexact=username).first()
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result, reason = user.autoregister_machine(mac_address, nas_type)
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if result:
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return Response(reason)
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return Response(reason, status=400)
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@api_view(["GET"])
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@can_view_all_api(Interface)
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@can_edit_all_api(Interface)
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def assign_ip(request, mac_address):
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"""Autoassign ip in the Authorize and Post-Auth steps of the Radius
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Parameters:
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mac_address (string): mac address of the device which is trying to connect
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Return:
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200 if it worked
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400 if it failed, and the reason why
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"""
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interface = Interface.objects.filter(mac_address=mac_address).first()
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try:
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interface.assign_ipv4()
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return Response()
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except ValidationError as err:
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return Response(err.message, status=400)
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