14132 Add EventRule - change webhook and add in script processing to events (#14267)

---------

Co-authored-by: Jeremy Stretch <jstretch@netboxlabs.com>

netbox/extras/webhooks.py

@@ -1,47 +1,6 @@
 import hashlib
 import hmac
 
-from django.contrib.contenttypes.models import ContentType
-from django.utils import timezone
-from django_rq import get_queue
-
-from netbox.config import get_config
-from netbox.constants import RQ_QUEUE_DEFAULT
-from netbox.registry import registry
-from utilities.api import get_serializer_for_model
-from utilities.rqworker import get_rq_retry
-from utilities.utils import serialize_object
-from .choices import *
-from .models import Webhook
-
-
-def serialize_for_webhook(instance):
-    """
-    Return a serialized representation of the given instance suitable for use in a webhook.
-    """
-    serializer_class = get_serializer_for_model(instance.__class__)
-    serializer_context = {
-        'request': None,
-    }
-    serializer = serializer_class(instance, context=serializer_context)
-
-    return serializer.data
-
-
-def get_snapshots(instance, action):
-    snapshots = {
-        'prechange': getattr(instance, '_prechange_snapshot', None),
-        'postchange': None,
-    }
-    if action != ObjectChangeActionChoices.ACTION_DELETE:
-        # Use model's serialize_object() method if defined; fall back to serialize_object() utility function
-        if hasattr(instance, 'serialize_object'):
-            snapshots['postchange'] = instance.serialize_object()
-        else:
-            snapshots['postchange'] = serialize_object(instance)
-
-    return snapshots
-
 
 def generate_signature(request_body, secret):
     """
@@ -53,70 +12,3 @@ def generate_signature(request_body, secret):
         digestmod=hashlib.sha512
     )
     return hmac_prep.hexdigest()
-
-
-def enqueue_object(queue, instance, user, request_id, action):
-    """
-    Enqueue a serialized representation of a created/updated/deleted object for the processing of
-    webhooks once the request has completed.
-    """
-    # Determine whether this type of object supports webhooks
-    app_label = instance._meta.app_label
-    model_name = instance._meta.model_name
-    if model_name not in registry['model_features']['webhooks'].get(app_label, []):
-        return
-
-    queue.append({
-        'content_type': ContentType.objects.get_for_model(instance),
-        'object_id': instance.pk,
-        'event': action,
-        'data': serialize_for_webhook(instance),
-        'snapshots': get_snapshots(instance, action),
-        'username': user.username,
-        'request_id': request_id
-    })
-
-
-def flush_webhooks(queue):
-    """
-    Flush a list of object representation to RQ for webhook processing.
-    """
-    rq_queue_name = get_config().QUEUE_MAPPINGS.get('webhook', RQ_QUEUE_DEFAULT)
-    rq_queue = get_queue(rq_queue_name)
-    webhooks_cache = {
-        'type_create': {},
-        'type_update': {},
-        'type_delete': {},
-    }
-
-    for data in queue:
-
-        action_flag = {
-            ObjectChangeActionChoices.ACTION_CREATE: 'type_create',
-            ObjectChangeActionChoices.ACTION_UPDATE: 'type_update',
-            ObjectChangeActionChoices.ACTION_DELETE: 'type_delete',
-        }[data['event']]
-        content_type = data['content_type']
-
-        # Cache applicable Webhooks
-        if content_type not in webhooks_cache[action_flag]:
-            webhooks_cache[action_flag][content_type] = Webhook.objects.filter(
-                **{action_flag: True},
-                content_types=content_type,
-                enabled=True
-            )
-        webhooks = webhooks_cache[action_flag][content_type]
-
-        for webhook in webhooks:
-            rq_queue.enqueue(
-                "extras.webhooks_worker.process_webhook",
-                webhook=webhook,
-                model_name=content_type.model,
-                event=data['event'],
-                data=data['data'],
-                snapshots=data['snapshots'],
-                timestamp=timezone.now().isoformat(),
-                username=data['username'],
-                request_id=data['request_id'],
-                retry=get_rq_retry()
-            )