Implements permission masks

apps/logs/middlewares.py

@@ -1,55 +0,0 @@
-# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-from django.conf import settings
-from django.contrib.auth.models import AnonymousUser
-
-from threading import local
-
-
-USER_ATTR_NAME = getattr(settings, 'LOCAL_USER_ATTR_NAME', '_current_user')
-IP_ATTR_NAME = getattr(settings, 'LOCAL_IP_ATTR_NAME', '_current_ip')
-
-_thread_locals = local()
-
-
-def _set_current_user_and_ip(user=None, ip=None):
-    setattr(_thread_locals, USER_ATTR_NAME, user)
-    setattr(_thread_locals, IP_ATTR_NAME, ip)
-
-
-def get_current_user():
-    return getattr(_thread_locals, USER_ATTR_NAME, None)
-
-
-def get_current_ip():
-    return getattr(_thread_locals, IP_ATTR_NAME, None)
-
-
-def get_current_authenticated_user():
-    current_user = get_current_user()
-    if isinstance(current_user, AnonymousUser):
-        return None
-    return current_user
-
-
-class LogsMiddleware(object):
-    """
-    This middleware get the current user with his or her IP address on each request.
-    """
-
-    def __init__(self, get_response):
-        self.get_response = get_response
-
-    def __call__(self, request):
-        user = request.user
-        if 'HTTP_X_FORWARDED_FOR' in request.META:
-            ip = request.META.get('HTTP_X_FORWARDED_FOR')
-        else:
-            ip = request.META.get('REMOTE_ADDR')
-
-        _set_current_user_and_ip(user, ip)
-        response = self.get_response(request)
-        _set_current_user_and_ip(None, None)
-
-        return response

apps/logs/signals.py

@@ -9,7 +9,7 @@ import getpass
 
 from note.models import NoteUser, Alias
 
-from .middlewares import get_current_authenticated_user, get_current_ip
+from note_kfet.middlewares import get_current_authenticated_user, get_current_ip
 from .models import Changelog
 
 

apps/member/backends.py

@@ -3,10 +3,10 @@
 
 from django.contrib.auth.models import User
 from django.contrib.contenttypes.models import ContentType
-from django.core.exceptions import PermissionDenied
 from django.db.models import Q, F
 
 from note.models import Note, NoteUser, NoteClub, NoteSpecial
+from note_kfet.middlewares import get_current_session
 from .models import Membership, RolePermissions, Club
 from django.contrib.auth.backends import ModelBackend
 
@@ -37,7 +37,8 @@ class PermissionBackend(ModelBackend):
                         F=F,
                         Q=Q
                     )
-                    yield permission
+                    if permission.mask.rank <= get_current_session().get("permission_mask", 0):
+                        yield permission
 
     @staticmethod
     def filter_queryset(user, model, t, field=None):
@@ -50,7 +51,7 @@ class PermissionBackend(ModelBackend):
         :return: A query that corresponds to the filter to give to a queryset
         """
 
-        if user.is_superuser:
+        if user.is_superuser and get_current_session().get("permission_mask", 0) >= 42:
             # Superusers have all rights
             return Q()
 
@@ -68,7 +69,7 @@ class PermissionBackend(ModelBackend):
         return query
 
     def has_perm(self, user_obj, perm, obj=None):
-        if user_obj.is_superuser:
+        if user_obj.is_superuser and get_current_session().get("permission_mask", 0) >= 42:
             return True
 
         if obj is None:

apps/member/forms.py

@@ -6,12 +6,21 @@ from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Layout
 from dal import autocomplete
 from django import forms
-from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
 from django.contrib.auth.models import User
 
+from permission.models import PermissionMask
 from .models import Profile, Club, Membership
 
 
+class CustomAuthenticationForm(AuthenticationForm):
+    permission_mask = forms.ModelChoiceField(
+        label="Masque de permissions",
+        queryset=PermissionMask.objects.order_by("rank"),
+        empty_label=None,
+    )
+
+
 class SignUpForm(UserCreationForm):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)

apps/member/views.py

@@ -9,6 +9,7 @@ from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.contrib.auth.models import User
+from django.contrib.auth.views import LoginView
 from django.core.exceptions import ValidationError
 from django.db.models import Q
 from django.http import HttpResponseRedirect
@@ -26,11 +27,20 @@ from note.tables import HistoryTable, AliasTable
 from .backends import PermissionBackend
 
 from .filters import UserFilter, UserFilterFormHelper
-from .forms import SignUpForm, ProfileForm, ClubForm, MembershipForm, MemberFormSet, FormSetHelper
+from .forms import SignUpForm, ProfileForm, ClubForm, MembershipForm, MemberFormSet, FormSetHelper, \
+    CustomAuthenticationForm
 from .models import Club, Membership
 from .tables import ClubTable, UserTable
 
 
+class CustomLoginView(LoginView):
+    form_class = CustomAuthenticationForm
+
+    def form_valid(self, form):
+        self.request.session['permission_mask'] = form.cleaned_data['permission_mask'].rank
+        return super().form_valid(form)
+
+
 class UserCreateView(CreateView):
     """
     Une vue pour inscrire un utilisateur et lui créer un profile

apps/note/api/serializers.py

@@ -4,7 +4,7 @@
 from rest_framework import serializers
 from rest_polymorphic.serializers import PolymorphicSerializer
 
-from logs.middlewares import get_current_authenticated_user
+from note_kfet.middlewares import get_current_authenticated_user
 from ..models.notes import Note, NoteClub, NoteSpecial, NoteUser, Alias
 from ..models.transactions import TransactionTemplate, Transaction, MembershipTransaction, TemplateCategory, \
     TemplateTransaction, SpecialTransaction

apps/note/fixtures/initial.json

@@ -3,7 +3,7 @@
         "model": "note.note",
         "pk": 1,
         "fields": {
-            "polymorphic_ctype": 40,
+            "polymorphic_ctype": 41,
             "balance": 0,
             "is_active": true,
             "display_image": "",
@@ -14,7 +14,7 @@
         "model": "note.note",
         "pk": 2,
         "fields": {
-            "polymorphic_ctype": 40,
+            "polymorphic_ctype": 41,
             "balance": 0,
             "is_active": true,
             "display_image": "",
@@ -25,7 +25,7 @@
         "model": "note.note",
         "pk": 3,
         "fields": {
-            "polymorphic_ctype": 40,
+            "polymorphic_ctype": 41,
             "balance": 0,
             "is_active": true,
             "display_image": "",
@@ -36,7 +36,7 @@
         "model": "note.note",
         "pk": 4,
         "fields": {
-            "polymorphic_ctype": 40,
+            "polymorphic_ctype": 41,
             "balance": 0,
             "is_active": true,
             "display_image": "",
@@ -47,7 +47,7 @@
         "model": "note.note",
         "pk": 5,
         "fields": {
-            "polymorphic_ctype": 39,
+            "polymorphic_ctype": 40,
             "balance": 0,
             "is_active": true,
             "display_image": "",
@@ -58,7 +58,7 @@
         "model": "note.note",
         "pk": 6,
         "fields": {
-            "polymorphic_ctype": 39,
+            "polymorphic_ctype": 40,
             "balance": 0,
             "is_active": true,
             "display_image": "",

apps/permission/admin.py

@@ -3,7 +3,15 @@
 
 from django.contrib import admin
 
-from .models import Permission
+from .models import Permission, PermissionMask
+
+
+@admin.register(PermissionMask)
+class PermissionMaskAdmin(admin.ModelAdmin):
+    """
+    Admin customisation for Permission
+    """
+    list_display = ('rank', 'description')
 
 
 @admin.register(Permission)

apps/permission/models.py

@@ -50,6 +50,20 @@ class InstancedPermission:
         return self.__repr__()
 
 
+class PermissionMask(models.Model):
+    rank = models.PositiveSmallIntegerField(
+        verbose_name=_('rank'),
+    )
+
+    description = models.CharField(
+        max_length=255,
+        verbose_name=_('description'),
+    )
+
+    def __str__(self):
+        return self.description
+
+
 class Permission(models.Model):
 
     PERMISSION_TYPES = [
@@ -85,6 +99,11 @@ class Permission(models.Model):
 
     type = models.CharField(max_length=15, choices=PERMISSION_TYPES)
 
+    mask = models.ForeignKey(
+        PermissionMask,
+        on_delete=models.PROTECT,
+    )
+
     field = models.CharField(max_length=255, blank=True)
 
     description = models.CharField(max_length=255, blank=True)

apps/permission/signals.py

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 from django.core.exceptions import PermissionDenied
-from logs.middlewares import get_current_authenticated_user
+from note_kfet.middlewares import get_current_authenticated_user
 
 
 EXCLUDED = [

apps/permission/templatetags/perms.py

@@ -4,7 +4,7 @@
 from django.contrib.contenttypes.models import ContentType
 from django.template.defaultfilters import stringfilter
 
-from logs.middlewares import get_current_authenticated_user
+from note_kfet.middlewares import get_current_authenticated_user, get_current_session
 from django import template
 
 from member.backends import PermissionBackend
@@ -19,7 +19,7 @@ def not_empty_model_list(model_name):
     user = get_current_authenticated_user()
     if user is None:
         return False
-    elif user.is_superuser:
+    elif user.is_superuser and get_current_session().get("permission_mask", 0) >= 42:
         return True
     spl = model_name.split(".")
     ct = ContentType.objects.get(app_label=spl[0], model=spl[1])
@@ -32,7 +32,7 @@ def not_empty_model_change_list(model_name):
     user = get_current_authenticated_user()
     if user is None:
         return False
-    elif user.is_superuser:
+    elif user.is_superuser and get_current_session().get("permission_mask", 0) >= 42:
         return True
     spl = model_name.split(".")
     ct = ContentType.objects.get(app_label=spl[0], model=spl[1])