Webhook component - pass headers to webhook handler (#17091)

* Pass headers to webhook handler

* Refactors webhook component to post Request object instead of data

* Update webhook tests

* Cleanup webhook test and fix a bug in ifttt

* Address code review comments

homeassistant/components/ifttt/__init__.py

@@ -5,6 +5,7 @@ For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/ifttt/
 """
 from ipaddress import ip_address
+import json
 import logging
 from urllib.parse import urlparse
 
@@ -74,8 +75,14 @@ async def async_setup(hass, config):
     return True
 
 
-async def handle_webhook(hass, webhook_id, data):
+async def handle_webhook(hass, webhook_id, request):
     """Handle webhook callback."""
+    body = await request.text()
+    try:
+        data = json.loads(body) if body else {}
+    except ValueError:
+        return None
+
     if isinstance(data, dict):
         data['webhook_id'] = webhook_id
     hass.bus.async_fire(EVENT_RECEIVED, data)

homeassistant/components/webhook.py

@@ -3,7 +3,6 @@
 For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/webhook/
 """
-import json
 import logging
 
 from aiohttp.web import Response
@@ -76,16 +75,8 @@ class WebhookView(HomeAssistantView):
                 'Received message for unregistered webhook %s', webhook_id)
             return Response(status=200)
 
-        body = await request.text()
         try:
-            data = json.loads(body) if body else {}
-        except ValueError:
-            _LOGGER.warning(
-                'Received webhook %s with invalid JSON', webhook_id)
-            return Response(status=200)
-
-        try:
-            response = await handler(hass, webhook_id, data)
+            response = await handler(hass, webhook_id, request)
             if response is None:
                 response = Response(status=200)
             return response

tests/components/test_webhook.py

@@ -63,7 +63,7 @@ async def test_posting_webhook_json(hass, mock_client):
 
     async def handle(*args):
         """Handle webhook."""
-        hooks.append(args)
+        hooks.append((args[0], args[1], await args[2].text()))
 
     hass.components.webhook.async_register(webhook_id, handle)
 
@@ -74,9 +74,7 @@ async def test_posting_webhook_json(hass, mock_client):
     assert len(hooks) == 1
     assert hooks[0][0] is hass
     assert hooks[0][1] == webhook_id
-    assert hooks[0][2] == {
-        'data': True
-    }
+    assert hooks[0][2] == '{"data": true}'
 
 
 async def test_posting_webhook_no_data(hass, mock_client):
@@ -95,4 +93,4 @@ async def test_posting_webhook_no_data(hass, mock_client):
     assert len(hooks) == 1
     assert hooks[0][0] is hass
     assert hooks[0][1] == webhook_id
-    assert hooks[0][2] == {}
+    assert await hooks[0][2].text() == ''