Fix 4549 webhook body encode in utf-8

netbox/extras/webhooks.py

@@ -17,7 +17,7 @@ def generate_signature(request_body, secret):
     """
     hmac_prep = hmac.new(
         key=secret.encode('utf8'),
-        msg=request_body.encode('utf8'),
+        msg=request_body,
         digestmod=hashlib.sha512
     )
     return hmac_prep.hexdigest()

netbox/extras/webhooks_worker.py

@@ -46,7 +46,7 @@ def process_webhook(webhook, data, model_name, event, timestamp, username, reque
         'method': webhook.http_method,
         'url': webhook.payload_url,
         'headers': headers,
-        'data': body,
+        'data': body.encode('utf8'),
     }
     logger.info(
         "Sending {} request to {} ({} {})".format(