Add command to fake cinder webhook request in local environments (#24245)

* Add command to fake cinder webhook request in local environments

Author: diox

src/olympia/abuse/management/commands/fake_cinder_webhook.py

@@ -0,0 +1,49 @@
+import hashlib
+import hmac
+import os.path
+from urllib.parse import urljoin
+
+from django.conf import settings
+from django.core.management.base import BaseCommand, CommandError
+from django.urls import reverse
+from django.utils.encoding import force_bytes
+
+import requests
+
+
+class Command(BaseCommand):
+    help = 'Send fake webhook request to local abuse response API like Cinder would.'
+
+    def add_arguments(self, parser):
+        parser.add_argument(
+            '--payload',
+            dest='payload_filename',
+            default=os.path.join(settings.ROOT, 'tmp/payload.json'),
+            help='Path to filename containing payload (default: %(default)s)',
+        )
+
+    def handle(self, *args, **options):
+        if settings.ENV != 'local':
+            raise CommandError('Only works in local environments')
+        try:
+            body = open(options['payload_filename'], 'rb').read()
+        except FileNotFoundError as exc:
+            raise CommandError(
+                'Cannot find payload file. Try using --payload=<path>.'
+            ) from exc
+        signature = hmac.new(
+            force_bytes(settings.CINDER_WEBHOOK_TOKEN),
+            msg=body,
+            digestmod=hashlib.sha256,
+        ).hexdigest()
+        url = urljoin('http://nginx', reverse('v5:cinder-webhook'))
+        response = requests.post(
+            url,
+            data=body,
+            headers={
+                'X-Cinder-Signature': signature,
+                'Content-Type': 'application/json',
+            },
+        )
+        self.stdout.write(f'{response.status_code}\n')
+        self.stdout.write(f'{response.content}\n')