mirror of https://gitlab.crans.org/bde/nk20
92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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import inspect
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from django.contrib.contenttypes.models import ContentType
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from django.core import serializers
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from django.db.models.signals import pre_save, pre_delete
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from django.dispatch import receiver
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from .models import Changelog
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def get_request_in_signal(sender):
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req = None
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for entry in reversed(inspect.stack()):
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try:
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req = entry[0].f_locals['request']
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# Check if there is a user
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# noinspection PyStatementEffect
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req.user
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break
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except:
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pass
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if not req:
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print("WARNING: Attempt to save " + str(sender) + " with no user")
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return req
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def get_user_and_ip(sender):
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req = get_request_in_signal(sender)
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try:
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user = req.user
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if 'HTTP_X_FORWARDED_FOR' in req.META:
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ip = req.META.get('HTTP_X_FORWARDED_FOR')
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else:
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ip = req.META.get('REMOTE_ADDR')
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except:
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user = None
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ip = None
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return user, ip
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EXCLUDED = [
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'changelog',
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'migration',
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'revision',
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'session',
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'version',
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]
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@receiver(pre_save)
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def save_object(sender, instance, **kwargs):
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model_name = sender.__name__
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if model_name.lower() in EXCLUDED:
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return
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previous = sender.objects.filter(pk=instance.pk).all()
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user, ip = get_user_and_ip(sender)
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previous_json = serializers.serialize('json', previous)[1:-1] if previous.exists else None
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instance_json = serializers.serialize('json', [instance, ])[1:-1]
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Changelog.objects.create(user=user,
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ip=ip,
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model=ContentType.objects.get_for_model(instance),
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instance_pk=instance.pk,
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previous=previous_json,
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data=instance_json,
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action=("edit" if previous.exists() else "create")
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).save()
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@receiver(pre_delete)
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def delete_object(sender, instance, **kwargs):
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model_name = sender.__name__
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if model_name.lower() in EXCLUDED:
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return
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user, ip = get_user_and_ip(sender)
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instance_json = serializers.serialize('json', [instance, ])[1:-1]
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Changelog.objects.create(user=user,
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ip=ip,
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model=ContentType.objects.get_for_model(instance),
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instance_pk=instance.pk,
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previous=instance_json,
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data=None,
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action="delete"
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).save()
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