mirror of
https://gitlab2.federez.net/re2o/re2o
synced 2024-11-25 22:22:26 +00:00
Un seul décorateur pour les gouverner (presque) tous.
This commit is contained in:
Hugo LEVY-FALK
parent
1955229842
commit
586321fd8a
1 changed files with 74 additions and 141 deletions
215
re2o/acl.py
215
re2o/acl.py
|
|
@ -28,135 +28,108 @@ Here are defined some decorators that can be used in views to handle ACL.
|
|||
from __future__ import unicode_literals
|
||||
|
||||
import sys
|
||||
from itertools import chain
|
||||
|
||||
from django.db.models import Model
|
||||
from django.contrib import messages
|
||||
from django.shortcuts import redirect
|
||||
from django.urls import reverse
|
||||
|
||||
|
||||
def can_create(model):
|
||||
def acl_base_decorator(method_name, *targets, **kwargs):
|
||||
"""Base decorator for acl. It checks if the user has the permission by
|
||||
calling model.method_name. If the flag on_instance is True, tries to get an
|
||||
instance of the model by calling model.get_instance(*args, **kwargs) and
|
||||
runs instance.mehod_name rather than model.method_name.
|
||||
"""
|
||||
on_instance = kwargs.get('on_instance', True)
|
||||
|
||||
def group_targets():
|
||||
current_target = None
|
||||
current_fields = []
|
||||
for t in targets:
|
||||
if isinstance(t, type) and issubclass(t, Model):
|
||||
if current_target:
|
||||
yield (current_target, current_fields)
|
||||
current_target = t
|
||||
current_fields = []
|
||||
else:
|
||||
current_fields.append(t)
|
||||
yield (current_target, current_fields)
|
||||
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request"""
|
||||
instances = []
|
||||
|
||||
def process_target(target, fields):
|
||||
if on_instance:
|
||||
try:
|
||||
target = target.get_instance(*args, **kwargs)
|
||||
instances.append(target)
|
||||
except target.DoesNotExist:
|
||||
yield False, u"Entrée inexistante"
|
||||
return
|
||||
if hasattr(target, method_name):
|
||||
can_fct = getattr(target, method_name)
|
||||
yield can_fct(request.user, *args, **kwargs)
|
||||
for field in fields:
|
||||
can_change_fct = getattr(target, 'can_change_' + field)
|
||||
yield can_change_fct(request.user, *args, **kwargs)
|
||||
error_messages = [
|
||||
x[1] for x in chain.from_iterable(
|
||||
process_target(x[0], x[1]) for x in group_targets()
|
||||
) if not x[0]
|
||||
]
|
||||
if error_messages:
|
||||
for msg in error_messages:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, *chain(instances, args), **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
|
||||
|
||||
def can_create(*models):
|
||||
"""Decorator to check if an user can create a model.
|
||||
It assumes that a valid user exists in the request and that the model has a
|
||||
method can_create(user) which returns true if the user can create this kind
|
||||
of models.
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
can, msg = model.can_create(request.user, *args, **kwargs)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse('index'))
|
||||
return view(request, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_create', *models, on_instance=False)
|
||||
|
||||
|
||||
def can_edit(model, *field_list):
|
||||
def can_edit(*targets):
|
||||
"""Decorator to check if an user can edit a model.
|
||||
It tries to get an instance of the model, using
|
||||
`model.get_instance(*args, **kwargs)` and assumes that the model has a
|
||||
method `can_edit(user)` which returns `true` if the user can edit this
|
||||
kind of models.
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
try:
|
||||
instance = model.get_instance(*args, **kwargs)
|
||||
except model.DoesNotExist:
|
||||
messages.error(request, u"Entrée inexistante")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
can, msg = instance.can_edit(request.user)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
for field in field_list:
|
||||
can_change_fct = getattr(instance, 'can_change_' + field)
|
||||
can, msg = can_change_fct(request.user, *args, **kwargs)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, instance, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_edit', *targets)
|
||||
|
||||
|
||||
def can_change(model, *field_list):
|
||||
def can_change(*targets):
|
||||
"""Decorator to check if an user can edit a field of a model class.
|
||||
Difference with can_edit : take a class and not an instance
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
for field in field_list:
|
||||
can_change_fct = getattr(model, 'can_change_' + field)
|
||||
can, msg = can_change_fct(request.user, *args, **kwargs)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_change', *targets)
|
||||
|
||||
|
||||
def can_delete(model):
|
||||
def can_delete(*targets):
|
||||
"""Decorator to check if an user can delete a model.
|
||||
It tries to get an instance of the model, using
|
||||
`model.get_instance(*args, **kwargs)` and assumes that the model has a
|
||||
method `can_delete(user)` which returns `true` if the user can delete this
|
||||
kind of models.
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
try:
|
||||
instance = model.get_instance(*args, **kwargs)
|
||||
except model.DoesNotExist:
|
||||
messages.error(request, u"Entrée inexistante")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
can, msg = instance.can_delete(request.user)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, instance, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_delete', *targets)
|
||||
|
||||
|
||||
def can_delete_set(model):
|
||||
|
|
@ -187,60 +160,20 @@ def can_delete_set(model):
|
|||
return decorator
|
||||
|
||||
|
||||
def can_view(model):
|
||||
def can_view(*targets):
|
||||
"""Decorator to check if an user can view a model.
|
||||
It tries to get an instance of the model, using
|
||||
`model.get_instance(*args, **kwargs)` and assumes that the model has a
|
||||
method `can_view(user)` which returns `true` if the user can view this
|
||||
kind of models.
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
try:
|
||||
instance = model.get_instance(*args, **kwargs)
|
||||
except model.DoesNotExist:
|
||||
messages.error(request, u"Entrée inexistante")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
can, msg = instance.can_view(request.user)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, instance, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_view', *targets)
|
||||
|
||||
|
||||
def can_view_all(model):
|
||||
def can_view_all(*targets):
|
||||
"""Decorator to check if an user can view a class of model.
|
||||
"""
|
||||
def decorator(view):
|
||||
"""The decorator to use on a specific view
|
||||
"""
|
||||
def wrapper(request, *args, **kwargs):
|
||||
"""The wrapper used for a specific request
|
||||
"""
|
||||
can, msg = model.can_view_all(request.user)
|
||||
if not can:
|
||||
messages.error(
|
||||
request, msg or "Vous ne pouvez pas accéder à ce menu")
|
||||
return redirect(reverse(
|
||||
'users:profil',
|
||||
kwargs={'userid': str(request.user.id)}
|
||||
))
|
||||
return view(request, *args, **kwargs)
|
||||
return wrapper
|
||||
return decorator
|
||||
return acl_base_decorator('can_view_all', *targets, on_instance=False)
|
||||
|
||||
|
||||
def can_view_app(app_name):
|
||||
|
|
|
|||
Loading…
Reference in a new issue