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mirror of https://gitlab.crans.org/bde/nk20 synced 2024-11-26 10:27:07 +00:00
nk20/apps/logs/signals.py
2020-02-27 13:34:38 +01:00

99 lines
2.9 KiB
Python

# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
import inspect
from django.contrib.contenttypes.models import ContentType
from django.core import serializers
from django.db.models.signals import pre_save, pre_delete
from django.dispatch import receiver
from .models import Changelog
def get_request_in_signal(sender, **kwargs):
req = None
for entry in reversed(inspect.stack()):
try:
req = entry[0].f_locals['request']
# Check if there is a user
# noinspection PyStatementEffect
req.user
break
except:
pass
if not req:
print("WARNING: Attempt to save " + str(sender) + " with no user")
return req
EXCLUDED = [
'changelog',
'migration',
'revision',
'session',
'version',
]
@receiver(pre_save)
def save_object(sender, instance, **kwargs):
model_name = sender.__name__
if model_name.lower() in EXCLUDED:
return
previous = sender.objects.filter(pk=instance.pk).all()
req = get_request_in_signal(sender, **kwargs)
try:
user = req.user
if 'X-Real-Ip' in req.headers:
ip = req.headers.get('X-Real-Ip')
else:
ip = req.headers.get('REMOTE_ADDR')
print(ip)
print(req.headers)
except:
user = None
ip = None
from rest_framework.renderers import JSONRenderer
previous_json = JSONRenderer().render(previous)
instance_json = JSONRenderer().render(instance)
Changelog.objects.create(user=user,
model=ContentType.objects.get_for_model(instance),
instance_pk=instance.pk,
previous=previous_json,
data=instance_json,
action=("edit" if previous.exists() else "create")
)#.save()
@receiver(pre_delete)
def delete_object(sender, instance, **kwargs):
model_name = sender.__name__
if model_name.lower() in EXCLUDED:
return
req = get_request_in_signal(sender, **kwargs)
try:
user = req.user
if 'X-Real-Ip' in req.headers:
ip = req.headers.get('X-Real-Ip')
else:
ip = req.headers.get('REMOTE_ADDR')
print(ip)
print(req.headers)
except:
user = None
ip = None
instance_json = serializers.serialize('json', [instance, ])[1:-1]
Changelog.objects.create(user=user,
model=ContentType.objects.get_for_model(instance),
instance_pk=instance.pk,
previous=instance_json,
data=None,
action="delete"
).save()